Summarize relevant mud logging, LWD/WL logging, and coring activities. * Quality control of data (logging, mud logging, coring, directional control). * Quality control and post daily reports, log ...
Summarize relevant mud logging, LWD/WL logging, and coring activities. * Quality control of data (logging, mud logging, coring, directional control). * Quality control and post daily reports, log ...
Applicants must have education or work experience with: 1) Single and multi-phase hydraulic simulator and steady state and transient models. 2) Mud logging and data analysis. 3) Manage Pressure ...
Applicants must have education or work experience with: 1) Single and multi-phase hydraulic simulator and steady state and transient models. 2) Mud logging and data analysis. 3) Manage Pressure ...
MPD Project Engineer II
Houston, TX · On-site
Applicants must have education or work experience with: 1) Single and multi-phase hydraulic simulator and steady state and transient models. 2) Mud logging and data analysis. 3) Manage Pressure ...
MPD Project Engineer II
Houston, TX · On-site
Applicants must have education or work experience with: 1) Single and multi-phase hydraulic simulator and steady state and transient models. 2) Mud logging and data analysis. 3) Manage Pressure ...
Principal Petrophysicist
Houston, TX · On-site
Mud Logging expertise is required. * Experience working with a reservoir management team including geoscientists, reservoir engineers, geophysicists, operations engineers, drilling engineers, and ...
Principal Petrophysicist
Houston, TX · On-site
Mud Logging expertise is required. * Experience working with a reservoir management team including geoscientists, reservoir engineers, geophysicists, operations engineers, drilling engineers, and ...
Mud Logging expertise is required. * Experience working with a reservoir management team including geoscientists, reservoir engineers, geophysicists, operations engineers, drilling engineers, and ...
Mud Logging expertise is required. * Experience working with a reservoir management team including geoscientists, reservoir engineers, geophysicists, operations engineers, drilling engineers, and ...
Run and operate gamma logging equipment and software * Follow procedures for all job duties and accurately complete all job paperwork * Assemble, run and operate both mud pulse tools, using ...
Run and operate gamma logging equipment and software * Follow procedures for all job duties and accurately complete all job paperwork * Assemble, run and operate both mud pulse tools, using ...
MWD Field Specialist II
Conroe, TX · On-site
Run and operate gamma logging equipment and software * Follow procedures for all job duties and accurately complete all job paperwork * Assemble, run and operate both mud pulse tools, using ...
MWD Field Specialist II
Conroe, TX · On-site
Run and operate gamma logging equipment and software * Follow procedures for all job duties and accurately complete all job paperwork * Assemble, run and operate both mud pulse tools, using ...
... mud-pulse telemetry). * Data Integrity: Design robust memory interfaces (DDR3/4) and error correction (ECC) for large-scale data logging during seismic or pipe inspection missions. * Certification ...
Quick apply
... mud-pulse telemetry). * Data Integrity: Design robust memory interfaces (DDR3/4) and error correction (ECC) for large-scale data logging during seismic or pipe inspection missions. * Certification ...
FPGA Engineer at Houston, TX
Houston, TX · On-site
$124K - $159K/yr
... mud-pulse telemetry ). * Data Integrity: Design robust memory interfaces (DDR3/4) and error correction (ECC) for large-scale data logging during seismic or pipe inspection missions. * Certification ...
Quick apply
FPGA Engineer at Houston, TX
Houston, TX · On-site
$124K - $159K/yr
... mud-pulse telemetry ). * Data Integrity: Design robust memory interfaces (DDR3/4) and error correction (ECC) for large-scale data logging during seismic or pipe inspection missions. * Certification ...
Perform soil sampling, logging, and resistivity observations during drilling to support CP design ... Experience operating drilling rigs (e.g., auger, mud rotary, air rotary) in construction ...
Perform soil sampling, logging, and resistivity observations during drilling to support CP design ... Experience operating drilling rigs (e.g., auger, mud rotary, air rotary) in construction ...
FPGA Design & Validation Engineer (Oil & Gas Systems)
Houston, TX · On-site
$113K - $156K/yr
... mud-pulse telemetry). • Data Integrity: Design robust memory interfaces (DDR3/4) and error correction (ECC) for large-scale data logging during seismic or pipe inspection missions. • ...
FPGA Design & Validation Engineer (Oil & Gas Systems)
Houston, TX · On-site
$113K - $156K/yr
... mud-pulse telemetry). • Data Integrity: Design robust memory interfaces (DDR3/4) and error correction (ECC) for large-scale data logging during seismic or pipe inspection missions. • ...
FPGA Design & Validation Engineer in Houston TX.
Houston, TX · On-site
$50 - $52/hr
... mud-pulse telemetry). * Data Integrity: Design robust memory interfaces (DDR3/4) and error correction (ECC) for large-scale data logging during seismic or pipe inspection missions. * Certification ...
Quick apply
FPGA Design & Validation Engineer in Houston TX.
Houston, TX · On-site
$50 - $52/hr
... mud-pulse telemetry). * Data Integrity: Design robust memory interfaces (DDR3/4) and error correction (ECC) for large-scale data logging during seismic or pipe inspection missions. * Certification ...
Validation Engineer
Houston, TX · On-site
... mud-pulse telemetry ). * Data Integrity: Design robust memory interfaces (DDR3/4) and error correction (ECC) for large-scale data logging during seismic or pipe inspection missions. * Certification ...
Quick apply
Validation Engineer
Houston, TX · On-site
... mud-pulse telemetry ). * Data Integrity: Design robust memory interfaces (DDR3/4) and error correction (ECC) for large-scale data logging during seismic or pipe inspection missions. * Certification ...
FPGA Design & Validation Engineer (Oil & Gas Systems)
Houston, TX · On-site +1
$117K - $161K/yr
... mud-pulse telemetry ). * Data Integrity: Design robust memory interfaces (DDR3/4) and error correction (ECC) for large-scale data logging during seismic or pipe inspection missions. * Certification ...
FPGA Design & Validation Engineer (Oil & Gas Systems)
Houston, TX · On-site +1
$117K - $161K/yr
... mud-pulse telemetry ). * Data Integrity: Design robust memory interfaces (DDR3/4) and error correction (ECC) for large-scale data logging during seismic or pipe inspection missions. * Certification ...
FPGA Design & Validation Engineer (Oil & Gas Systems)
Houston, TX · On-site +1
$117K - $161K/yr
... mud-pulse telemetry ). * Data Integrity: Design robust memory interfaces (DDR3/4) and error correction (ECC) for large-scale data logging during seismic or pipe inspection missions. * Certification ...
FPGA Design & Validation Engineer (Oil & Gas Systems)
Houston, TX · On-site +1
$117K - $161K/yr
... mud-pulse telemetry ). * Data Integrity: Design robust memory interfaces (DDR3/4) and error correction (ECC) for large-scale data logging during seismic or pipe inspection missions. * Certification ...
FPGA Design & Validation Engineer (Oil & Gas Systems)
Houston, TX · On-site
$117K - $161K/yr
... mud-pulse telemetry ). * Data Integrity: Design robust memory interfaces (DDR3/4) and error correction (ECC) for large-scale data logging during seismic or pipe inspection missions. * Certification ...
FPGA Design & Validation Engineer (Oil & Gas Systems)
Houston, TX · On-site
$117K - $161K/yr
... mud-pulse telemetry ). * Data Integrity: Design robust memory interfaces (DDR3/4) and error correction (ECC) for large-scale data logging during seismic or pipe inspection missions. * Certification ...
... mud/air rotary and rock-coring techniques for ground-supported (truck, track, or ATV-mounted ... Field Experience related to logging and geotechnical soil sampling for engineering projects will be ...
... mud/air rotary and rock-coring techniques for ground-supported (truck, track, or ATV-mounted ... Field Experience related to logging and geotechnical soil sampling for engineering projects will be ...
Water Well Driller w/CDL - MULTIPLE LOCATIONS
Houston, TX · On-site
$28 - $36.75/hr
Operate drill rig with operations including mud mixing, pump operations and hole logging. * Drive of equipment to and from job sites. * Perform routine maintenance and troubleshooting on machinery to ...
Quick apply
Water Well Driller w/CDL - MULTIPLE LOCATIONS
Houston, TX · On-site
$28 - $36.75/hr
Operate drill rig with operations including mud mixing, pump operations and hole logging. * Drive of equipment to and from job sites. * Perform routine maintenance and troubleshooting on machinery to ...
Water Well Driller w/CDL - MULTIPLE LOCATIONS
Houston, TX · On-site
$28 - $36.75/hr
Operate drill rig with operations including mud mixing, pump operations and hole logging. * Drive of equipment to and from job sites. * Perform routine maintenance and troubleshooting on machinery to ...
Quick apply
Water Well Driller w/CDL - MULTIPLE LOCATIONS
Houston, TX · On-site
$28 - $36.75/hr
Operate drill rig with operations including mud mixing, pump operations and hole logging. * Drive of equipment to and from job sites. * Perform routine maintenance and troubleshooting on machinery to ...
Mud Logging information
See Spring, TX salary details
$35.2K - $38.8K
6% of jobs
$38.8K - $42.4K
9% of jobs
$45.6K is the 25th percentile. Wages below this are outliers.
$42.4K - $46.1K
12% of jobs
$46.1K - $49.7K
18% of jobs
The median wage is $51.5K / yr.
$49.7K - $53.4K
11% of jobs
$53.4K - $57K
7% of jobs
$57K - $60.6K
10% of jobs
$61.6K is the 75th percentile. Wages above this are outliers.
$60.6K - $64.3K
10% of jobs
$64.3K - $67.9K
7% of jobs
$67.9K - $71.6K
5% of jobs
$71.6K - $75.2K
5% of jobs
$35.2K
$55K
$75.2K
How much do mud logging jobs pay per year?
What are the key skills and qualifications needed to thrive in the Mud Logging position, and why are they important?
To thrive as a Mud Logger, you need a background in geology or earth sciences, strong analytical skills, and attention to detail, often supported by a relevant degree or industry experience. Familiarity with drilling monitoring software, gas detection equipment, and sample collection tools is typically required, along with certifications such as H2S safety training. Strong communication skills, adaptability, and the ability to work effectively in remote, team-based environments help individuals excel in this role. These skills and qualities are essential for accurately monitoring well conditions, ensuring safety, and providing critical data to drilling teams.
What is a Mud Logging job?
A Mud Logging job involves monitoring and analyzing drilling fluids (mud) during oil and gas exploration. Mud loggers collect rock cuttings, analyze gas levels, and record geological data to assist drilling engineers and geologists in making informed decisions. They work on-site at drilling rigs, often in remote locations, to ensure safety and efficiency. Their data helps identify potential oil and gas reservoirs and detect drilling hazards. The role requires attention to detail, technical knowledge, and the ability to work long shifts in challenging environments.
What jobs in the US pay 300,000 a year?
What jobs pay 500,000 a year in the US?
What job makes $10,000 a month without a degree?
What jobs pay 2000 a day?
What are the typical challenges faced by Mud Loggers on oil and gas drilling sites?
Mud Loggers often work in demanding environments, including remote drilling sites and variable weather conditions, which require adaptability and resilience. They must handle the pressure of continuous monitoring and quick decision-making to ensure safety and accurate reporting of drilling parameters. The role frequently includes long shifts and requires collaboration with drilling engineers, geologists, and rig personnel. Although challenging, these conditions offer valuable hands-on experience and can lead to advancement opportunities into more specialized geological or drilling roles.

Full-time
Posted 3 days ago
Job description
We strongly believe that diversity fuels creativity and innovation. That's why we welcome professionals who are ready to grow, learn, and bring their perspective to the energy challenges of today and tomorrow.
Here, you'll find a place to grow and unlock your full potential.
UTD Subsurface has an internal vacancy for a Senior Operation Geologist in Houston (USA). This role is to support a new forthcoming Exploration Operated project in Alaska - USA, continuation of REPSOL's drilling operations in Unconventional USA, and possibly an additional operated Exploration project in Mexico B29.
Key Details
- Position will be based onsite in The Woodlands, TX (USA).
- Position is eligible for international assignment / expatriate.
- Position will include relocation for any non-local internal candidates.
- Requires travel & working time at rig site.
- Requires willingness to work extended or non-standard hours during critical operational phases.
- Will occasionally be required to provide on-call or real-time operational support.
Internal Eligibility
- This role is only open internally for any full-time Repsol employees from any location (expat eligible).
- If you are unable to self-apply due to the 'time in role' requirement (4 years for technical), please connect with your HR Business Partner to request an exception. With approval the application will be manually created for you.
Summary
The Senior Operations Geologist shall be involved in both planning, execution and close out phases of exploration & appraisal wells in North America (operated by REPSOL and non-operated).
The Senior Operations Geologist will be engaged in the Data Acquisition management and mitigation of geologically driven risks that are associated with drilling well operations.
Key Responsibilities
Senior Operations Geologist shall be involved in both planning, execution and close out phases of exploration & appraisal wells.
Operations Geologist will be engaged in Data Acquisition management & mitigation of geologically driven risks that are associated with drilling well operations.
The Sr. Operations Geologist is expected to perform a variety of tasks including, but not limited to:
General
- Advisory support and geological guidance to Wells during both planning and execution phases (Primary Geoscience interface).
- Act as the primary geological interface between Exploration, Appraisal, Wells and Subsurface teams, ensuring continuity from prospect definition to well execution (concerning Data Acquisition).
Well Planning & Data Acquisition Definition
- Lead the geological Operations planning of exploration and appraisal wells from Kick Off Meeting (as per REPSOL's procedures) through spud approval.
- Define geological casing points and Data Acquisition Program (Mudlogging, Wireline logging, Logging While Drilling and Coring, among others) ensuring alignment with well objectives, data acquisition needs and risk mitigation.
- Review offset well data (stratigraphy, pore pressure, temperature, fluid systems, hazards) to set up Preliminary Subsurface Information and Pre Drilling Data Package among others wells documents for approval and compliance.
- Prepare Scope of Works & technical evaluation matrixes for Data Acquisition tenders. Prepare budgets & cost estimations (Class V to Class I) for Data Acquisition tenders.
- Participate actively in all the different stages of the WCP procedure, being responsible of the preparation/update of the PSI/PDDP/Data Acquisition programs.
- Develop Data Acquisition decision trees proposal and other operations improvements inputs.
- Produce final Well Report and Composite well logs or other charts.
- Build and maintain an appropriate geological database updating interpretations from evaluation of well log data, cores and other new well.
- Capture and communicate lessons learned and improvement opportunities to enhance future well planning and execution.
- Contribute to peer reviews, technical assurance processes and internal knowledge sharing across exploration and operations teams.
Execution Phase
- Supervision and control of geological well site activities. Ensure adherence to planning documents and drilling programs or advice on revisions to plan, based on data acquired or operational difficulties.
- Provide primary communications link to wellsite geologists. Ensure Quality Control of daily geological reports and wellsite geologists log.
- Provide log analysis and QC well operation follows up.
- Summarize relevant mud logging, LWD/WL logging, and coring activities.
- Quality control of data (logging, mud logging, coring, directional control).
- Quality control and post daily reports, log plots, and digital data to Company, partners & government or regulators.
- Prepare rotation schedules (if applicable), communications and reporting protocols.
- Propose change management inputs & recommendations for deviations from plan (as per Management of Change).
- Provide real-time geological monitoring and interpretation during drilling, ensuring safe and efficient well delivery from spud to end of well.
- Ensure compliance to REPSOL's Health Safety & Environment procedures related with Data Acquisition contract and contribute to meet the Company committed HSE performance targets.
- Identify and advise on subsurface and operational hazards (pressure uncertainty, losses, shallow hazards, faulting) and recommend mitigation actions as required.
- Monitor drilling operations interpreting Logging While Drilling / Mudlogging data to provide technical inputs concerning updated well trajectory to remain within well objectives (conventional o unconventional). Provide continuous steering recommendations to the drilling team.
- Manage real-time data transfer and geosteering software systems.
Contractors, Partners & Data Management
- Contract holder of Data Acquisition service contractors (mudlogging, wireline logging, logging while logging, coring, laboratory services and others), ensuring contract compliance, performance, safety and data quality standards are met.
- Responsible for planning all the subsurface geology activities which includes, preparation of geological well data acquisition programs, and subsequently monitoring the drilling operations through a deep knowledge or REPSOL's and international industry procedures.
Required Qualifications & Experience
- Must be legally authorized to work in the US for any employer (Position available for an international assignment - expatriation or local personnel).
- Bachelor's degree in Geology (or related field). Specialized Masters degree strongly preferred.
- Proven experience in geological Operations & Data Acquisition planning, including casing points, mudlogging equipment & sensors set up, coring and logging programs in compliance with wells objective, and identification and mitigation of subsurface risks.
- Advanced understanding of subsurface hazards, including shallow gas/water hazards, faulting and pressure uncertainty, loss zones and depleted intervals.
- Minimum of 10 years of experience in geological operations including significant rig based exposure (onshore and/or offshore).
- Strong analytical geological skills as well as operational background to support it.
- Demonstrated technical leadership, adaptability, and ability to work in a multi-functional & multicultural team.
- Effective communication skills, with a commitment to high safety and ethical standards.
- Demonstrated experience with commonly used software (Microsoft Suite, etc) as well as strong skills in specific computer areas (e.g. Openwells, Techlog or others).
- Significant experience in wireline logging data acquisition (QA/QC at rig site), wireline logging pressure data interpretation and geosteering applications.
- Knowledge of Gas While Drilling Formation Evaluation will be considered as a plus.
- Must have a good level of written and oral English comprehension. Bilingual Spanish/English professional fluency will be considered as a plus.
Internal Application Process & Best Practices
- Discuss Your Interest - As a best practice, we recommend that you speak with your HR Business Partner (HRBP) and your current manager before applying. These conversations help foster transparency and can support a smoother transition if selected for the role. However, you may elect to keep your application confidential if self-applying.
- Eligibility - Make sure you meet the eligibility criteria for the role, including any time-in-role requirements. Please contact your HRBP to request potential exception of you are unable to self-apply.
- Transfer Timing - Upon selection, HR Business Partner(s) and Managers will coordinate a transition plan that reflects all stakeholder interests.
Recruiter: Casey Robinson
Local (US) HRBP: April Callihan