This oil and gas jobs guide has been published on NatResPro for two main purposes:
- As a reference point when we are dealing with employers and candidates, so that we can correctly define terms when needed.
- As the energy industry evolves along with technical innovation, our technical energy job glossary can help the next generation of workers navigate what we expect to be a fast moving dynamic industry.
With the embrace of big data, artificial intelligence and a stream of new inventions and refined processes, oil and gas job specifications will also evolve.
As a forward looking energy manpower agency, we expect to stay at the cutting edge of what is likely to be a completely different industry in ten years from now.
This page is part of a series that will define other important sub-sections of our industry such as in-depth guides on specialties and qualifications.
Without further ado, welcome to our Oil and Gas Jobs Glossary…
Completions, Well Intervention & Workovers
A Completion Engineer, (also known as a Subsurface Engineer), works closely with the Drilling Engineers to ensure that the subsurface well structure is married with the correct above surface equipment structure. This is the most expensive and important part of the upstream oil production process.
Once the wellbore and the casing have been created, the Completions Engineer will specify, select and order the correct equipment so that the long term health and viability of the well is maximised.
Once the completion equipment has been installed, Completion Engineers stay on to monitor and adjust to maintain optimum well efficiency.
Senior Completion Engineer
A Senior Completions Engineer is likely to be at the head of a team of Completion Engineers for large and/or difficult wells.
As with the job of a Completion Engineer, the Senior Completion Engineer will have the responsibility of selecting the most applicable equipment and make sure that the well performs efficiently and safely. It is also likely that other aspects such as pre-frac testing or fishing exercises are overseen by a Senior Completion Engineer.
Drill Stem Test/Well Test Engineer
Before the final completion of a well, it is necessary to create a temporary completion and then test it for well integrity and viability. A Well Test Engineer will perform the Drill Stem Tests to make sure that everything is functioning as expected.
This will be the test run, before the final completions stage which creates a permanent engineering structure that will function for many years. A Well Test Engineer can identify structural issues that can be rectified before the well goes live and into production.
Senior Drill Stem Test/Well Test Engineer
A Senior Drill Stem Test/Well Test Engineer will be very experienced, and is likely to be the leader of a well test department. As with other senior oilfield positions, the buck for most day to day activities is likely to stop here, a senior member of a crew needs to know the most about their department.
The Senior Test Engineer will be the person to complete final checks before, during and after the testing of the wells. After signing off, the well is handed over to the Completion Engineer. In this respect, the Well Test Engineers job is equally important.
Workover/Well Intervention Engineer
A Workover or Well Intervention is done when an existing well is damaged, equipment has malfunctioned, or a technical feature is unsuitable for current flow rates. A Workover/Well Intervention Engineer plans, oversees and monitors this process.
The Well Intervention Engineer starts his job at the planning stage, before the well is temporarily 'killed off' and he stays until the valves are re-opened and production resumes.
Senior Workover/Well Intervention Engineer
As with other senior positions, a Senior Workover/Well Intervention Engineer will need to have extensive experience in Workovers. Some are specialists in areas such as HTHP (high temperature, high pressure), Wireline, Coiled Tubing or Snubbing.
Well Workovers are among the most difficult in well operations since the original completion structure is usually removed and replaced. The Senior Workover Well/Intervention Engineer therefore has a very important role. To make a mistake might involve another new Workover which will cause cost to skyrocket and budgets to break.
Completion/Well Intervention Superintendent
A Completion/Well Intervention Superintendent has the highest level of responsibility for the process of a Well Workover and/or Completion. Whilst there might be higher levels of decision makers who are office based, among the Well Engineers, the Superintendent is in the best position to make the right decisions.
Therefore, there is a tremendous amount of pressure and responsibility for the Completion/Well Intervention Superintendent. This is a very difficult and expensive stage of the oil production process. Most of the time a pre-planned process will be overseen, sometimes however fast decisions must be made in relation to accidents and well integrity and the 'buck stops' at the Superintendent. Mainly he will report to, and work with the overall Rig Manager, and the Drill Stem Test/Well Test Superintendent.
Drill Stem Test/Well Test Superintendent
The Drill Stem Test/Well Test Superintendent is in charge of overseeing the Engineers and the Senior Engineers in the same department. As with the Completion/Well Intervention Superintendent, this position is the highest level field position in this department.
The Well Test Superintendent will oversee and liase with his equivalents in other parts of the on-site team. Mainly he will report to, and work with the overall Rig Manager, and Completion/Well Intervention Superintendent.
Directional Drilling & Surveying
A Well Planner is a Drilling Engineer with considerable experience and knowledge in a vast array of different types of Wells. In any industry, the planning stage tends to be the most important and involves general technical knowledge, but also specialist knowledge and a strong instincts for people, corporate culture, local safety regulations and so on.
Through the organisation of processes such as DWOP's (Drill Well On Paper) and CWOP's (Complete Well On Paper), representatives of different parts of the well exploration, drilling and completion teams join together. They will plan a well with a view of maximising efficiencies in time, capital, as well as making sure that safety and environmental concerns are at the forefront.
Such a complex set of knowledge and considerations require a very unique type of Well Planner to organise the process. Success can be measured in months and millions saved, failure points not identified in advance can literally be disastrous.
Directional Drilling Coordinator
A Directional Drilling Coordinator is a Drilling Engineer who has a lot of drilling experience. He will be able to guide the drilling teams according to the Well Plan, but also work with the Geologists, HSE staff and other key members on the rig. Rock formations and hydrocarbon reservoir maps are usually extrapolated and estimated. During the actual drilling process, equipment and gauges must be monitored and adjustments made according to the feedback received.
As drilling techniques such as horizontal and multilateral have become more advanced due to new technologies, the potential yield of a reservoir can vary. One factor will be down to the skills and decisions made by the Directional Drilling Coordinator.
The same well could yield 40% more hydrocarbon, or need to be shut in an abandoned, based on the way that it is drilled. This is obviously an important responsibility.
IFR Survey Specialist
An IFR (In-Field Referencing) Survey Specialist will work with the Directional Drilling Coordinator in estimating the well path in relation to crustal field.
They do this by accessing data from previous aeromagnetic and marine surveys, and measurement-while-drilling (MWD) tools to ensure that the well path is progressing along a satisfactory route.
Drilling & Well Engineering
A Drilling Technician (also known as a Drilling Operator - or just a Driller) is responsible for the preparation of the drilling rig for operations. Then during drilling, they will monitor gauges, adjust the speed of the rotary tables, and regulate the pressure of the tools that are in the drill holes.
Other responsibilities of a Drilling Technician include keeping accurate records, monitoring well flows so that overflows are avoided, and working with the Fluid and Mud Engineers to keep everything circulating nicely.
Lastly, a Drilling Technician will be involved in the maintenance of the drilling equipment and dropped equipment recovery (fishing).
A Drilling Engineer develops a drilling plan, then creates an inventory of staff, equipment and associated costs. Then they will supervise the drilling operation, from development to completion, then abandonment.
Drilling Engineers can be office or field based, they work closely with all of the other key management people. These include Geologists, Geo-scientists, HSE and Rig Managers, as well as the subordinate Drilling Engineers, Toolpushers and so on.
Senior Drilling Engineer
The Senior Drilling Engineer (SDE) is the oil companies highest technical representative. He is responsible for the overall technical planning and operations of the well.
Whilst the Drilling Engineers will be involved in the same job aspects, the Senior Drilling Engineer makes the final decisions and is head of the engineering team. The SDE will work directly with the Drilling Superintendent and the Operations Geologist to ensure that the well is progressing according to plan.
Drilling Engineering Manager/Advisor
A Drilling Engineering Manager or Adviser oversees not only the drilling engineering team, but many other aspects of the operation. He will monitor subsidiaries including geology, reservoir, petrophysics, marketing, risk assessment and other parts of the overall well operation.
The Drilling Engineering Manager or Adviser will also be involved in supply chain, logistics, training and development and the well delivery aspect.
The overall success of the well is the main concern, meaning that delivery must be on time, within budget, and safe.
Drilling Fluid/Cementing Specialist
A Drilling Fluid and Cementing Specialist is responsible for the formulation, monitoring and adjustment of the fluid and cement used during mud removal, drilling and until completion of the well.
Mud that exerts pressure on the reservoir is removed and replaced with drilling fluid during actual drilling. This fluid needs to be formulated and adjusted to enable cuttings to be transported to the surface. The fluid needs to have the correct hydrostatic properties.
When the well is ready for completion the shaft needs to be cemented in place. The correct mix and introduction of the cement will ensure well integrity in the future. Because of this completion aspect, and the importance of well control during drilling, the Fluids and Cementing Specialist is a very important member of the team.
Coiled Tubing/Underbalanced Drilling Engineer
A Coiled Tubing Engineer is bought in where the structure of the well formation suits this technique. Instances include re-entry or side tracking from existing well bores, and low pressure or underbalanced drilling.
The Coiled Tubing/Underbalanced Drilling Engineer is likely to be based on-site and work directly with the Senior Drilling Engineer and the Drilling Technicians.
Managed Pressure Drilling Specialist
A Managed Pressure Drilling Specialist helps in situations where the annular pressure profile needs to be carefully measured, adjusted and controlled inside the well bore.
This might be because of unusual geology, high pressure/high temperature (HPHT) wells, or deep water where it might be easier to lose control of a well. A managed Pressure Drilling Specialist might be office or site based, but is likely to be involved in the before, during and after the full drilling process.
Multilateral Well Specialist
A Multilateral Well Specialist is a drilling engineer who focuses on the technique of creating multiple horizontal wells, as offshoots of the main Well.
Due to enhanced technological advances in drilling and sensor equipment, drilling companies are now able to access other parts of the existing reservoir, or even adjacent reservoirs.
This means that far more oil and gas can be extracted, with a minimal increase in associated costs. A Multilateral specialist needs to find an optimal balance between increased yield, and well integrity.
Cost & Performance Engineer
A Cost and Performance Engineer is responsible for ensuring that the drilling project stays on track from a cost and time perspective. He will take a 'bigger picture' perspective and notice weak areas, and try to stay ahead of potential problems and setbacks.
A Drilling Superintendent is likely to be a very experienced engineer, and is one of the highest ranking on-site workers. He will be responsible for the whole drilling operation, including engineering, drilling, geology, health safety and environment, logistics, and everything associated with a drilling operation.
The Drilling Superintendent is hands on, from the beginning of the planning stage, all the way to completion. The Drilling Superintendent and the Rig Manager share the most responsibility for the overall success of the well.
A Performance Coach or Mentor will be an experienced drilling professional who has a proven track record of solving problems, and being a linchpin among previous teams.
There are certain types of people who constantly exceed time and cost targets, at the same time exhibiting leadership and people handling qualities.
Coaches and Mentors in any industry are the types of people who realise that they can contribute more, by inspiring a new generation of leaders.
Real-Time Operations Centre (RTOC) Engineer
A Real Time Operations Center Engineer will have had extensive on-site experience and have a proven track record for the demands of being part of a drilling team.
The RTOC center will have a live feed of all of the real time data and feedback that the drilling team are accessing on the rig.
Imagine the NASA Houston command and control station, there will be every type of data available. There will be experienced astronauts on hand to offer advice, all in the comfort of a controlled environment, away from local weather and stress situations. This is a similar principle to a RTOC for the oil and gas business.
A Wellsite Geologist works with the drilling team on site to monitor and record the drilling progress by monitoring the geological structure being drilled. More specifically they will extract and analyze core samples, rock cutting and wireline data, and perform other specialised tests.
Ultimately, it will be the Wellsite Geologist that will decide when to continue drilling, and when to stop. This is a very important responsibility to ensure well integrity, and purity of the hydrocarbon flow.
An Exploration Geologist works during the very earliest stages of the drilling process. Based on knowledge of landforms and historic sedimentary and rock formations, an Exploration Geologist will make educated guesses as to where the best places to drill are.
As part of this process, a team including cartographers, surveyors and land owners will work together with the Exploration Geologist. They will collect data including soil and core samples, gradually piecing together a picture of what might be found beneath them. The Exploration team therefore have a major influence on where drilling companies focus their efforts.
An Operations Geologist takes a broad overview of the drilling operation. They will collect data and samples from a variety of sources and create data driven charts and guidelines. They will work with managers, engineers and geophysicists to plan and guide the drilling operation overall.
The Operations Geologist is likely to spend some time in the office to plan and construct reservoir models, and some time in the field. While on site they are likely to be inspecting and monitoring progress, while conferring with the staff that have provided previous data and feedback.
A Development Geologist is responsible for the continued development of an existing reservoir. This involves deciding on new wells to drill in close proximity to an existing producing well. It also involves monitoring and deciding on perforation intervals in these new wells.
A Production Geologists job is similar to a Development Geologists, the main difference being that the Production Geologist focuses on EXISTING well bores. They will make decisions about perforating intervals and the continued exploitation of existing production.
A Geophysicist studies the earth using magnetic, seismic, electrical and gravitational methods. It is more of an abstract data driven method as opposed to studying core samples for example.
An Exploration Geophysicist works early on in the production cycle, identifying promising areas for further study be the geologists. It is an important role, so a good grasp of historic models can save a lot of time and money for the E&P companies.
As with the distinction between the development and exploration geologist, the Development Geophysicist focuses on EXISTING well sites.
The surrounding earth structure will be analyzed using electrical, gravitational, seismic and magnetic methods. The goal will be to estimate and identify the horizontal measurements of the reservoir, and the likelihood of adjacent fields.
A Petrophysicist is a key member of the reservoir management team. Petrophysics goes beyond the role of Geology and involves modelling the structure and characteristics of the reservoir.
Factors such as estimating the structure of seals, aquifers and the sources of hydrocarbon distribution come into play. Then to determine the equipment and fluids needed, the bed boundaries, rock type, porosity, permeability and fractional flow must be estimated, sometimes by looking at minimal clues from 4 miles underground.
Finally, economic decisions must be made based on these determinations. Decisions involving equipment, manpower and sometimes viability must be made from a high level of detective work by the Petrophysicist.
Subsurface Team Leader
A Subsurface Team Leader is involved in the co-ordination, recruiting, tracking and reporting of drilling activities. The Subsurface Team Leader will report and liase with the core reservoir management team.
Recruiting, training and organizing of manpower, monitoring of reserves, inventory and budget allocation, and other leadership and reporting roles are key tasks for the Subsurface Team Leader. An overview of all drilling activities including health, safety and environmental issues means that this is a very important role.
A Mud Logger records the attributes of soil and rock samples that are produced while drilling a bore hole. These readings are taken at regular intervals and used to create a well log. The samples will be a mixture of cuttings from the well shaft, and the fluid medium used to extract them.
Because the formulation of the drilling fluid (usually mud) is already a known quantity, the extra material content can be isolated. From this, fluidity and lithology (physical characteristics) can be determined.
The well log can then be compared with estimates and historic records in order to monitor progress, and make decisions about changes in the drilling procedure.
Mud Logging Data Engineer
A Mud Logging Data Engineer will take the well log as it is progressing and do the deeper analysis and calculations based on the data. These data points and feedback can also contribute to the overall insights into questioning or confirming the estimates and assertions that have been presented by the Geologists, Petrophysicists and Drilling Engineers.
While examining the well log, decisions can be made about whether to adjust the drilling fluid. Adjusting the formula of the drilling fluid has implications on well pressure and the efficiency in which the drill cuttings can be circulated back to the surface.
MWD stands for 'Measurement While Drilling' and the MWD Engineer is responsible for assisting the Mud Logging Engineer in monitoring and deciding whether the well bore is on track, and the drilling is progressing to plan.
Instead of analyzing the fluids, the MWD Enginner will look at the readings from equipment that measures sound, radioactivity and electricity feedback. Using trigonometry, the progressing well bore is drawn and and tracked.
Density, porosity, and fluid levels are monitored and then these readings that are tracked every few seconds can be used to adjust drilling speed or direction. The reason for monitoring and adjusting is to minimize the chance of hitting a water aquifer or granite. The other reason is to perform the drilling as efficiently as possible and to maximize the potential yield.
The MLWD Engineer works with the MWD Engineer. The 'L' in MLWD stands for Log'. So, the MLWD Engineer will create the log record from the readings and feedback and then contribute to the overall well log.
The difference between the MLWD Engineer and the Mud Logger is that the Mud Logger is focusing on and recording the drilling fluids. The MLWD Engineer will be looking at other data such as electric, magnetic and radioactive readings.
A Directional Driller does the job of a regular Driller, but specializes in the techniques of drilling at different angles to vertical. This could mean horizontal, or very often involves changes in direction in order to navigate obstructions or maximize the output of a reservoir.
Technology has come a long way in the past ten years or so, both in drill design and sensor feedback and data collection. The best Directional Drillers will be fully abreast of these changes.
A Wireline Engineer is an expert in the process of lowering a wireline into the well bore for the purposes of measurement or equipment recovery. A wireline is a cable that can support equipment that is used in the process of well intervention, pipe recovery and reservoir evaluation.
The monitoring and feedback produced by the Wireline Engineer needs to be added to the well log and is used as a resource for the reservoir management team.
A Biostratigrapher will work in the mud logging unit alongside team members such as the Mud Logger, Wellsite Geologist and Directional Driller. Biostratigraphy is a sub section of geology that is involved in studying rock units that contain fossils. It is not only dinosaurs that get fossilized, but all types of organic life.
Studying fossils contained in rocks and other land forms bought up from the well bore can give an indication of the different layers being reached by the drill. Since oil comes from organic sources, fossils can indicate depths that are likely to be close to hydrocarbon reservoirs.
A Sedimentologist is a Geologist that specializes in the study of sedimentary deposits. Namely sand, silt and clay, sediments are useful in telling us how the land form and filtration systems have evolved over the years.
Since sediments get 'deposited', the presence, depth and composition of a sedimentary layer will give us information about the geological structure in the surrounding area.
A Sedimentologist will work as part of the Mud Logging team, providing another vital part of the drilling jigsaw puzzle.
An Exploration Manager leads the organisation's exploration activities, which result in the first wells being drilled, in order to find significant hydrocarbon deposits.
Reporting to top management, the Exploration Manager will evaluate all important aspects of the operation such as test results, costings, local regulations, restrictions and so on. Ultimately, a presentation needs to be made regarding the long term economics and viability of a site.
A Geoscience Manager will supervise the geoscience section of the overall project. He will collect, collate and analyst data produced by other members of the geoscience team such as the Wellsite Geologist, Mudlogger and so on.
The purpose of this supervision and informational organisation will be to contribute to the well design at the planning stages. The Geoscience Manager will offer valuable input relating to considerations such as target zones, the well path and directional drilling.
This is a very important role is relation to delivering a well design that is robust, from a safety and cost perspective.
The Production Manager will oversee the day to day operations of a running well site. He will deal with vendors, Supervisors and Superintendents in all sections. Also, daily statistics and metrics must be monitored to ensure that production is roughly following the well plan.
Another important aspect of the Production Managers job is to notice and identify opportunities for improvements in efficiency and cost savings. Being on-site, and overseeing a large portion of the data, issues and improvements can be noticed.
Finally, a Production Manager will assist in decisions regarding crew, personnel and contractors.
The Drilling Manager is a department head responsible for the engineering aspects of the drilling process itself. A focus on safety, efficiency and process execution is important.
Another task is to assist and advise both field and office based department heads to help all sections come together in a coordinated manner. As a technical specialist and experienced problem solver, the Drilling manager is relied upon to decide many crucial decisions, such as when to start and stop drilling.
A Completion Manager is the head of the completions department. He will take over from the Drilling Manager and leads a team of Completion Engineers.
After the well bore is complete, and the liner has been cemented in place, the Completion Manager oversees the installation of the well head. The next step will to perform final integrity checks, and then bring the well online to start the production flow.
A Logistics Manager is responsible for the correct flow of supplies, materials, equipment and manpower. Every required aspect of a drilling project needs to be available, on time and in good working order.
The Logistics Manager will be involved at all stages of exploration, drilling, completion, and ongoing production cycles. From planning, to contracting, to execution, to maintenance.
Supply Chain Manager
The Supply Chain Manager performs a similar role to the Logistics Manager, in fact they work closely together. The main difference is that the Supply Chain Manager focuses on the supply of materials and equipment that is provided by outside contractors and suppliers.
The main objective of a Supply Chain Manager is to make sure that every piece of equipment or material is always readily available, in order to minimize or prevent down time and lost hours.
HSE stands for health, safety and environment, so the HSE Manager is responsible for overseeing the project from an operational integrity standpoint. He needs to see that both company, country and international protocol and standards are being adhered to in these areas.
The HSE Manager will perform rig surveys, and ensure that workers are folloing the correct safety procedures. Another role is when something goes wrong. Whether it is an accident, equipment failure or environmental concern, the HSE team will spearhead the damage control and operational integrity measures.
The Q in QHSE stands for Quality. So the Quality, Health, Safety and Environment/QHSE Manager will work with the HSE Manager, but the emphasis will be on the level of compliance and rig integrity.
The QHSE Manager will be more involved in auditing and reporting, risk assessments, and keeping records over the life of the well.
QA/QC stands for Quality Assurance/ Quality Control. The QAQC Manager will keep track of materials, equipment and work practices, making sure that standards are kept as high as possible, in order to reduce the chance of equipment failure, worker injury and down time.
Practical duties include quality audits, supply chain inspections and the monitoring of personnel training and skill requirements.
An Environmental Manager works within the HSE team, but is likely to be a specialist for a particular geological or environmental challenge. For example, for drilling in the Arctic, an Environmental Manager who is a polar specialist might join the existing team to bolster the knowledge in an environment that is unfamiliar to an average HSE Manager.
Another example might be a local Environmental Manager joining a foreign drilling contractor team. They will oversee and report back to their home government in order to offer oversight to a potentially sensitive operation.
A Rig Manager has complete responsibility and control over a particular rig installation. They will be in charge of making decisions involving anything financial, technical, performance, contractor and personnel related.
The Rig Manager will be the main point of contact with the operator, and be the source of collated reports and updates that travel in both directions.
An Asset Manager focuses on maintaining the optimal efficiency of the companies assets. Assets can include the drilling equipment, rig, pumps, vehicles, and anything that contributes to the process of mining and extracting oil and gas.
Where the role of an Asset Manager differs from say, the Rig Manager or the Logistics Manager is that the other types of managers are heads of departments that are mainly making sure that everything is running smoothly and on target. An Asset Manager will be tasked with looking at an overview of a project and looking for increased efficiencies that lead to cost savings, schedule improvements and less down time.
A Country Manager is responsible for all activities in a particular country. Companies that are international in scope, and that have a sufficient footprint will start to separate reporting and statistics for different regions and countries.
A Country Manager will be the highest level role, for a particular country, and all of the heads of departments within that country will report to them.
A Regional Manager is one level higher than a Country Manager in the hierarchy of a large international company. Country Managers that are responsible for countries within the same region will report back. Examples of regions are South East Asia, or Sub-Saharan Africa.
A Regional Manager is considered a top executive and will be included in the high level planning meetings at head office.
A Reservoir Engineer has the task of calculating the size of a reservoir, the volume of hydrocarbon deposits contained, and the likely extraction yield. The extraction process must be optimized by economic viability, as not all of the reservoir will be recoverable at a reasonable cost.
Reservoir Engineers will work with Geophysicists and Geologists to estimate these reserves, as no-one will know for sure until production has been underway for a while.
A Production Engineer focuses on the production flow, once the well is already producing. The extraction needs to be as fast as possible, while maintaining steady control of pressure, heat, gas and so on.
Each well will have a sweet spot between speed and safety, and a good Production Engineer will be adept at finding and maintaining this.
The Production Technologist will co-ordinate with many different departments such as the: reservoir, production, surface engineering, and well teams. They are involved in overseeing and optimising well design, flow and performance.
Being involved at all stages of the life cycle of the well, they will be around before and after the Reservoir and Production Engineers. A Production Technologist takes an overview and looks at the possible integration of new techniques and technology.
Quality, Health, Safety and Environment
The Quality Assurance/Quality Control Supervisor takes an overview and co-ordinates all QAQC activities. In addition to supervising staff, the structure and efficiency of the process needs to be optimised.
A QAQC Supervisor will receive the survey reports then piece them together to analyze a project overall. Any diversion from regulatory compliance, or gaps in the process will be identified and then rectified.
A Quality Assurance/Quality Control Inspector makes sure that all machinery, tools and equipment are present and in good working order. There will be guidelines to follow so all items must meet company, industry and regulatory standards.
A QAQC Inspector will perform scheduled surveys, and then report any missing, broken or dangerous items immediately. In addition to inspections, a QAQC Inspector will work with other members of the rig crew during accidents or emergency situations.
A Quality, Health, Safety and Environment Supervisor is responsible for all aspects or procedural integrity for these 4 words that build the acronym QHSE. The QHSE Supervisor is the link between the careful plan that has been created at head office, and the reality on the ground at the work site.
All company, country and international regulations must be adhered to, best practice guidelines are created and updated for everyone's benefit. The reality is that at any particular time, issues can arise on the rig floor. Machinery or equipment can malfunction, and staff can forget procedure. The QHSE Supervisor will follow checklists and conduct tests and audits so that evryone, and the project itself can stay safe and efficient.
An Environmental Advisor focuses on the potential impact of the work site, on the environment. This is different to those in HSE and QHSE roles in that there's only one priority to carefully monitor and assess.
In the planning stage, assessments and the collection of external reports and data will be conducted. During the work on the field or rig, an Environmental Advisor will conduct inspections and audits. Accurate records must be kept for future reference and to make sure that everything is in compliance.
The Enviromental Advisor will liase with external industry and government bodies, as well as company bosses. Workers and middle management will also be monitored and guided according to explicit guidelines.
Contract & Procurement Specialist
A Contract & Procurement Specialist is responsible for the efficient sourcing and ordering of supplies and equipment. This will involve finding the best suppliers that are able to ensure quality, value and reliable delivery. This means submitting bids, negotiating on price and orders sizes, and dealing with the logistics people.
The Contract and Procurement Specialist will sit in on meetings and offer input involving the wells planning. Later, they monitor and will fine tune the plan for maximum efficiency in cost and supply flow.
There's an art to making sure that contract terms are fair to all parties, and that contingencies are in place for supply chain issues. A Contract and Procurement Specialist will need to solve problems with suppliers, and ultimately cancelling or replacing them.
A Logistics Coordinator is responsible for the day to day supply chain of orders and deliveries. They will check, send and follow up on purchase orders, and liase for delivery and payments.
They will communicate with van, truck, air and sea freight delivery companies, organising and routing supplies. Mis-shipments and deliveries will be sent back or re-routed and steps will be taken to ensure that this doesn't happen again. Quality control and supply levels will also be monitored and reported on.
A Logistics Supervisor is a managerial role that is responsible for overseeing the supply of people, equipment and materials. A supervisor will assist the coordinators in their everyday tasks.
In addition, they will take a higher view of the logistics department. Typical jobs include creating schedules and ensuring departmental consistency with the company strategy and values.
The Logistics Supervisor also works closely with the HSE, contracts and drilling management teams to help ensure a smooth overall operation.
Supply Chain Supervisor
A Supply Chain Supervisor is responsible for the efficient flow of materials, from raw materials to the finished products. An optimised supply chain eliminates bottlenecks that cause inefficiencies.
The supply chain refers to goods coming into an organisation, and those leaving. This is different to logistics, which tends to be an internal company process. Supply chain is part of the logistics 'umbrella', and the teams work together.
Wellsite Operations & Supervision
Wellsite Drilling Engineer
A Wellsite Drilling Engineer is a type of Petroleum Engineer that works at the active rig area. Unlike an office based drilling engineer that tends to be more involved in the planning stage, the wellsite equivalent will be overseeing the drilling operation directly.
A drilling engineer at the wellsite will be checking that the drilling plan is proceeding as expected. They will coordinate with all department heads of the drilling team. They'll monitor, observe and create optimisation strategies.
In addition, if something goes wrong, such as a stuck pipe or dropped tool, the wellsite engineer will be needed. They'll be expected to create a strategy to quickly get the operation back on track.
Drilling Materials Coordinator
The responsibility of the Materials Coordinator is to manually monitor and check the physical inventory. They will count and inspect the stores of drilling materials, parts and equipment and keep records. All items must be in good condition, properly organised and coded ready for use.
Also, all drilling equipment and materials need to be safely and efficiently stored. Certifications must be checked, and replacements ordered where required. The Drilling Materials Coordinator will make sure that all company guidelines are followed, and that no work on the rig would be hindered or held up due to materials and parts issues.
A Driller is the person in charge of the real-time drilling operation. Responsibilities cover all aspects of the drilling equipment and the drill crew. They operate, monitor and create reports for everything contained in the drilling section of the rig. This includes supervising and directing the physical operation of the drill, directing its path underground, and monitoring progress. Important aspects such as pressure, mud and gas levels will be carefully checked, and adjustments made.
The Driller will monitor and record daily usage of equipment such as drill string segments, pipe pieces and joints. They will also record instances of any problems and challenges encountered, and how these were overcome.
The Driller will also be responsible for periodic equipment checks, and safety inspections and drills for the drilling crew.
A Cyber Driller does everything that a regular Driller does, the difference is that they operate a cyber rig. A cyber rig is a high-tech, up to date version with a seat that resembles a cockpit. Instead of just levers, switches and dials, there are multiple LCD displays showing the information needed. A cyber rig is more accurate and efficient, and the drill head is directed via joystick. Most modern rigs are cyber rigs, but if a company is advertising for a Driller, whether that person has experience in cyber drilling can be a huge factor.
A Tourpusher is a supervisory role and they work with the driller. They have seniority to the Driller, but are also in charge of the drilling crew. The main difference between a Tourpusher and a Driller is that the Driller is doing the drilling, but the Tourpusher is supervising the operation from one step higher on the hierarchy.
The Tourpusher makes sure that the well is being drilled to plan, and often deals with the oil company man, on behalf of the contractor. Other duties include supervising shift handovers, equipment checks and testing, and helping to supervise rig moves.
The Toolpusher is the department head of the drilling department. They're senior to the Tourpusher and the Driller, and report directly to the Offshore Installation Manager (OIM). They work closely with the oil company representative (company man), at the same level of authority.
A Toolpusher is a management and administrative role, and will check all of the reports and recommendations that are submitted by everyone in the drilling department. They will instruct the Tourpusher and ensure that the program is being carried out to all agreed specifications and standards.
A Senior Toolpusher performs the same tasks as a standard Toolpusher. The difference will be the level of past experience in the role, and whether there are multiple people that are acting as Toolpusher.
For example, on a large rig in a challenging environment, a drilling contractor will look for a very experienced Toolpusher. This person might have the title of Senior Toolpusher even if there were only one of them. On a multi pad rig, or on a large rig or platform there may be more then one Toolpusher, one would be senior to indicate chain of command.
Night Drilling Supervisor
Due to the huge expense involved in leasing and operating a rig, it works 24 hours a day, and 7 days a week. This would involve a day shift, and a night shift of 12 hours each. A Night Drilling Supervisor will do the same tasks as their day time counterpart. Some people are more suited to night work than others, and differentiating between the night time person also helps in planning and organising.
A Night Drilling Supervisor is needed from the start of a drilling operation, up until the well comes online and starts producing. The list of tasks is substantial, and includes the supervisions of all aspects of the arrival, set up and activation of the rig. A Drilling Supervisor is a lieutenant for the Rig Manager. Duties range from sitting in on the well planning workshops such as DWOPs and CWOPs, to being a leader in HSE matters. A Drilling Supervisor is the eyes and ears of the Rig Manager. (See the definition directly below for more details).
A Drilling Supervisor is responsible for the guidance and monitoring of all rig activities. Working directly under the Rig Manager, they ensure that all operations are working as per the plan. They have a seat at the table at the planning workshops, and are involved in the supply of equipment and human resources.
The Drilling Supervisor has one of the most broad based list of responsibilities. They need to oversee all aspects of progress, then make organisational decisions, as well as action and prioritisation plans. They also liaise with suppliers, regulatory bodies and local contractors.
Senior Drilling Supervisor
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Offshore Installation Manager
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Assistant Subsea Engineer
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Well Services Supervisor
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Well Test Supervisor
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