Wellsite Geologist III at Prime Atlantic Limited

Offshore Rotation: 4 weeks on / 4 weeks off.

Job Summary

• This Scope of Work defines the requirements for the provision of Senior Well Site Geologist (WSG) services to support offshore drilling operations and post-well reporting.
• The selected vendor will provide experienced personnel to supervise geological operations, ensure data quality, and support communication between the wellsite and office teams.

Tasks & Responsibilities
Wellsite Responsibilities:

• A Senior Well Site Geologist shall:
• Supervise and quality control all geological operations at the wellsite.
• Oversee and validate sample descriptions of cuttings and cavings.
• Act as the primary liaison between the wellsite and office-based teams, ensuring timely and accurate communication.
• Supervise and quality control all data acquisition activities, including mud logging and LWD/MWD, wireline, and coring services.
• Monitor ROV feeds during riserless drilling for shallow flow indicators or adverse conditions.
• Ensure all geological and data acquisition contractors perform to expected standards.
• Conduct wellsite log correlation and assist in determining casing points and total depth (TD).
• Evaluate and interpret geological data, including cuttings and offset well data.
• Communicate geological hazards and upcoming section/well TD to the wellsite team.
• Ensure daily upload of all geological data, reports, and logs.
• Oversee onboarding and technical competency assessments of new WSG and Mud Logging personnel.
• Ensure training and development plans for WSGs meet regulatory and operator requirements.
• Intermediate skills in qualitative geomechanics (inclusive of LOT/FIT analysis), real time pore pressure monitoring and pressure surveillance would be beneficial but not required
• Prior experience with MPD and ERD be beneficial but not required
• Excellent communication, collaboration and interpersonal skills across offshore and shore base teams
• Proficiency in Petrel software

Pre-Drill and Office-Based Support:

• Coordinate and prepare pre-drill data repositories and supporting documentation.
• Develop supplemental materials to support offshore communication of subsurface and operational plans.
• Inspect rig site readiness and collaborate with drilling vendors to address site-specific gaps.
• Review and improve third-party operating procedures related to geological operations and data handling.
• Establish and manage a duty roster and rotational logistics plan for WSGs.

Schedule and Availability:

• Personnel must be available to work rotational offshore and remote operations schedules (typically 3–4 weeks per hitch).
• Must be capable of working day and night shifts on a remote offshore facility and remote operations room.
• Vendor must ensure availability of qualified personnel to meet operational timelines.

Vendor Responsibilities:

• Coordinate scheduling, logistics, and interface with the ExxonMobil Operations team.
• Provide proof of experience, education, safety training, and drug testing for all geologists prior to deployment.
• Maintain adequate bench strength and succession planning to ensure uninterrupted coverage over the duration of the contract.
• Ensure all personnel meet offshore certification and fitness requirements prior to mobilization.

Deliverables

• Daily geological reports and data distribution.
• Open hole activity geohazard roadmaps
• Cuttings and cavings reports to inform on wellbore conditions.
• Final well reports for each hole section and the entire well.
• Post-well composite log and well data book.
• Documentation of lessons learned, including third-party contributions.
• ExxonMobil will provide access to relevant data, systems, and communication channels necessary for the execution of duties.

Requirements
Personnel Requirements:

• Minimum of 10 yrs experience in wellsite and operations geology, with a strong background in deepwater Nigeria would be beneficial
• Post-secondary degree in geology or a related field.
• Certification or fitness to obtain offshore safety and survival certification.
• ExxonMobil reserves the right to refuse individuals based on insufficient experience, education, safety training, or failure to meet regulatory or operational standards.