Drilling Expert Witnesses

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Drilling expert witnesses typically have a background as a professional engineer with extensive experience in petroleum engineering, mechanical engineering, or as a completions engineer. In a high-profile case, or litigation involving a significant financial stake, a law firm may request a subject matter expert with prior testimony experience. A drilling expert witness must have substantial knowledge and expertise in the technology, as well as be comfortable providing testimony before the court in a manner whereby the judge and jury can understand the evidence.

Legal cases involving drilling issues could involve intellectual property, such as a patent infringement case or a trade secrets dispute. A subject matter expert in drilling might also provide expert testimony in a product liability case or personal injury case. Litigation support services could include failure analysis, expert report preparation, patent invalidity and validity arguments, deposition, expert opinion, and expert testimony at a trial. In a high-profile case, or litigation involving a significant financial stake, the lead attorney may request a subject matter expert with prior testimony experience. A drilling engineer or petroleum engineer could also be called upon to provide pre-litigation consulting work.

Representing the plaintiff or defendant, top litigation firms reach out to Cahn Litigation Services to search for expert witnesses. Whether the project involves horizontal drilling technology, offshore drilling, pipeline, oilfield drilling operation, directional drilling, or any other facet related to drilling, Cahn has the experience needed to efficiently search and secure expert witnesses.

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Drilling Expert Witness - Sample Bios

Please Note: All Cahn Litigation expert witness searches are customized to attorneys' precise specifications and preferences. Attorneys are encouraged to discuss search parameters with a Cahn search specialist.

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The below expert witness bios represent a small fraction of those Drilling experts known by Cahn Litigation Services. These bios are provided to give attorneys a sense of the Drilling landscape.


Expert Witness #250478

This expert has worked in the drilling industry for many years and in several countries, and is widely considered as an expert in planning and drilling relief wells to control oil and gas blowouts; the directional aspects of drilling relief wells are considered to be the most demanding form of directional drilling. This expert earned a PhD in Petroleum Engineering and a Master's of Science degree in Petroleum Engineering. Throughout this expert's career, this expert has acquired a broad range of domestic and international experiences in the fields of direction drilling, completions, fracture stimulation, and production. This expert started working on wells where directional drilling was being conducted; worked drilling supervision on 100+ wells involving directional drilling; helped develop software that assessed directional survey data to determine true vertical depth, x and y departures from vertical and dog-leg severity; wrote a best-selling textbook which contains a chapter on directional drilling. It addresses survey calculations and interpretations as wells as equipment used during the directional drilling process, and taught directional drilling as part of an undergraduate course. This expert has authored five books, co-authored chapters in two publications and published 80 technical publications. This expert has been involved with the SPE and has served in several capacities. This expert is an Adjunct Professor teaching the undergraduate drilling course in the Petroleum Engineering Department. This expert has extensive litigation experience having been deposed and provided courtroom testimony on many occasions.  


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Expert Witness #250497

This expert is Vice President of Special Projects for a highly successful international consultancy. This expert has a BS in Petroleum Engineering, and many years of experience in the oil industry as a drilling and completion consultant. This expert has worked on high pressure gas wells, horizontal wells, geothermal wells, relief wells, injection wells, underbalanced drilling operations, blowouts and well control audits. This expert's experience includes planning, estimating costs, implementing the drilling and completion operations, and plug and abandonment. This expert has experience with forensic analysis of well problems. This expert also teaches industry training courses. This expert has conducted more than 100 courses in Drilling, Directional Drilling, Underbalanced Drilling and Well Control. This expert has conducted the courses as a PetroSkills instructor. This expert has also authored the book that is used in the training course, which details the equations used to make the directional drilling calculations and constructed Excel spreadsheets to make the same calculations. As a result, this expert is very familiar with the operations of the MWD in the field and how the information gets to the surface as well as the computer calculations and how they are used at the wellsite. This expert is the author of numerous technical papers on directional drilling applications and underbalanced drilling. This expert has worked as an expert witness. This expert has been deposed and testified in court.  


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Expert Witness #252262

This expert is a Petroleum and Drilling Engineering expert, bringing to the table many years of extensive experience in the areas of the operation and maintenance of oil drilling rigs. This expert has designed and supervised many drilling projects as an engineer, rig supervisor, and drilling manager. This expert’s expertise in rig design includes projects for new and refurbished onshore and offshore rigs, making this expert well aware of the various rig components, how they work, and issues that occur during a drilling operation. This expert is the Principal of a well-respected and highly successful consultancy specializing in oil and gas matters.

This expert designed well projects for various fields and zones within these oil and gas fields. This expert supervised drilling rigs for an ongoing development program and designed and oversaw drilling programs for a wide variety of development and exploration wells. This expert oversaw rig operations, new facilities installations, and production optimization. This expert designed development drilling programs to build on existing production, as well as oversaw expansion into new fields This expert has been in charge of drilling new wells, well completions, and increasing production of existing wells. This expert’s extensive experience with well operations has made this expert familiar with the equipment required to do the work.

This expert has an extensive litigation background having worked on over 50 cases while providing expert reports, depositions, and trial testimony.


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Expert Witness #250466

This expert is an old school veteran of the Oil and Gas industry with many years' experience. This expert directed a team of research and development professionals to perfect a drilling measurement device. This expert holds two drilling-related patents and has experience as an expert witness, writing reports and testifying. This expert has extensive knowledge of rigs, drilling, engineering, oil spills, and failure analysis. This expert's expertise stretches across a wide range of equipment in nearly every application and in nearly every drilling environment.


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Expert Witness #252259

This expert began a career in the oil industry working summers offshore on several production platforms as a roustabout, before earning both Bachelors and Masters Degrees in Petroleum Engineering.

This expert worked as a roughneck then joined a petroleum company as a Drilling Representative/Engineer and was involved in the design and well site supervision of drilling, completion and workover operations on over 200 wells, ranging in depths from 1,000' to over 17,000', in conventional, tight sand and shale reservoirs. This expert was the onsite operator representative overseeing operations performed by drilling, completion and workover rig companies and various subcontractors. This expert's drilling experience includes PDC, roller cone, RWD and bi-center bits, directional (including horizontal) wells, under reaming, coring, foams, fishing and multiple mud system experience. This expert's completion and workover experience includes acid and fracture stimulation, foam operations, sand control, remedial cementing, cased hole fishing, on both flowing and artificial lift wells (rod pump, gas lift, ESP). This expert also designed and supervised numerous thru-tubing workovers, coiled tubing stimulation and cementing operations. This expert was promoted to Area Engineer, responsible for the reservoir and production engineering. This expert was credited the most successful workover on a converted shut-in water injector, resulting in a 1,400 BOPD producing oil well.

This expert researched wellbore stresses using finite element modeling and graduated with a doctoral degree in Petroleum Engineering and a minor in Mathematics. This expert maintains an active practice in consulting, working in multiple basins in the United States, designing drilling, completion and workover programs.

This expert has taught graduate, undergraduate courses and industry seminars in Completions, Drilling and Workover Engineering. This expert has attended numerous industry schools, technical conferences and symposiums as part of continuing education.

This expert has 34 publications and three patents. This expert has presented at multiple workshops and conferences worldwide. This expert is a Principal in a highly respected consultancy, providing drilling, completion and workover consulting services, strategic planning, industry schools, intellectual property and expert witness services. This expert is a member of the SPE, AADE, ACS, ASME, AGU, Sigma Xi, Pi Epsilon Tau, and is a registered professional petroleum engineer.


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Expert Witness #244701

This expert is a Professional Engineer with experience in drilling and completions engineering and operations management, as well as proven expertise in optimizing well design, planning and operations for drilling. This expert has a solid track record of providing high level engineering design, operations management and substantial cost saving. Accomplished in drilling optimization, performance improvement and Technical Limit process, this expert has designed and constructed vertical, directional, and horizontal wells for oil and gas production and environmental remediation; as well as horizontal bores for pipeline installations and utility crossings. As a skilled team leader and mentor with strong ability to coach and motivate junior staff; prioritize and manage multiple concurrent activities meeting deadlines and financial objectives, this expert's proactive approach ensures job quality, workplace safety, regulatory compliance and environment protection. This expert has performed numerous analyses to determine the mechanisms that cause failures of drill bits, downhole tools, tubulars, rig structures, assemblies, components, and overall drilling systems. This expert has prior litigation experience, having written reports and been deposed, but has yet to have the pleasure of testifying in court.


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Expert Witness #244692

This expert has many years' experience in Oil & Gas Operations, and is a recognized pioneer in horizontal, Managed Pressure Drilling, Underbalanced and Casing Drilling. This expert is a registered Professional engineer, holds a BS in Mechanical Engineering, and is presently President and CEO of an Oil and Gas consulting firm. This expert presents frequently at industry conferences, and consistently works for clients that are well-known in the industry.  


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Expert Witness #255263

This expert has many years' experience and is Vice President of a mining engineering company with an international practice. This expert is an authority on best practices and standards for blasting operations and consults as to planning controls regarding surface and cast blasting. This expert has significant experience as a testifying expert and has participated as an expert in Federal and State matters and has given testimony in depositions and trials.    


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Expert Witness #252285

This expert is a licensed Professional Engineer with many years' experience in the oil and gas drilling industry. This expert is a Completion Engineer with experience using diverting agents, and a focus on maximizing production with state of the art technology and methods. As head of a consulting firm, this expert specializes in frac and refracture design and implementation, injection and water disposal, production optimization, and pressure transient analysis. This expert is active in industry conferences. This expert has some experience as an expert witness, but has never testified at trial.


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Expert Witness #250772

This expert is Director of the Advanced Vehicle Systems Research Program at a research university. This expert is an expert in automotive drivetrain technology and extensively studies, publishes and teaches on oscillation, vibration and flexure of drivetrains. This expert's primary focus is on electrical and mechanical systems including imbalance issues, and the attendant noise and vibrations that occur, specifically the dynamics and analysis of mechanical vibrations on rotating and linear devices. This expert is a member of the society of Automotive engineers (SAE) and is a registered Professional Engineer. This expert has experience as an expert witness, having testified approximately a dozen times in court, and providing upwards of twenty depositions, primarily in patent matters.


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Expert Witness #266119

This expert holds a Master’s degree in Electrical Engineering, and a Ph.D. degree in Engineering Geoscience. This expert worked boots-on-the-ground as a Development Engineer. This expert been with the Department of Petroleum and Geosystems Engineering at a prestigious university, where this expert teaches undergraduate and graduate courses on MWD, well logging, formation evaluation, integrated reservoir characterization, nonlinear optimization, inverse theory, and computer programming. This expert has experience with signal and image processing as well as borehole measurements, including whole drilling. This expert’s current research is focused to the petrophysical, geophysical, mechanical, and geological description and quantification of the borehole region from geophysical measurements (open hole, MWD, logging-while-drilling, and cased hole), and in-situ permanent sensors. Three-dimensional seismic data, vertical seismic profiles, cross-well data (seismic, electromagnetic, tracers, etc.), well-interference measurements, tracer arrival data, and production information, are used to the extent that they provide a way to extrapolate laterally away from wells the petrophysical parameters estimated in the near-borehole region. Drilling, well completions, and rock mechanics research includes: MWD, LWD, and PWD technologies; well bore stability in highly deviated wells; high-temperature/high-pressure properties of drilling fluids; fracture gradient and pore pressure quantifications; wave propagation and mechanical behavior in weak, loosely cemented, granular materials; and more. This expert is co-author of 5 US patents, has published more than 202 articles in refereed technical journals, over 235 articles in international conferences, and two book chapters. This expert is a member of the research committee of the SEG, was a member of the technical committee of the SPWLA (Society of Petrophysicists and Well Log Analysts), and is currently VP of Publications of the SPWLA. This expert has conducted numerous training courses for oil companies in the areas of petrophysics, formation evaluation, MWD, well logging, inversion, seismic amplitude inversion, reservoir characterization, and geostatistics.


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Expert Witness #266124

This expert is a veteran of the directional drilling and drilling technology industry, with very deep and broad experience with new technology development. This expert managed the development of drillstring modeling software for analyzing drilling torque, and drew the basic concept of the user interface for the software and then managed its development with programmers. This expert has technical expertise in directional drilling, rotary steerables, measurement/logging-while-drilling, formation evaluation, surface data logging, geosteering/horizontal drilling, extended reach drilling, managed pressure/underbalanced drilling and data acquisition. This expert has been responsible for new product definition for a range of downhole technologies involved in directional drilling and logging while drilling. This required deep investigation into existing products and patent research for freedom to operate. This expert worked closely with subject matter experts and mastered the nuances of the key features and distinctive benefits relative to competitors to be able to write the functional requirements documents that would define how the technologies would be developed. Only then could the product have a competitive advantage. As Global Product Champion, this expert routinely explained to industry experts the technical merits of this technology advancement over the conventional approach and process of directional drilling with a steerable motor.

Most of this expert’s career has been focused on market research, investigating cutting edge technologies, and creating business cases for development of those technologies to get them sanctioned for investment by senior management. For example, when a drilling services company was first-to-market with numerous technologies, beating main competitors, this expert researched patents to determine freedom to operate for technologies such as novel drilling concepts for rock destruction, automated directional drilling systems, and gyroscopic directional drilling guidance solutions. This expert has performed portfolio analysis, technology acquisition analysis, strategic corporate planning, business planning and market research in cutting-edge technologies. This expert was part of an industry consortium that attempted to create a digital twin for simulating the downhole drillstring motion while drilling. This expert has scripted and storyboarded 3-D animations for marketing purposes that visualize the directional drilling process; the skill set and expertise that is required to generate realistic and accurate 3-D animations that will be viewed by subject matter experts in directional drilling is exactly the same skill set that is required to produce a graphical user interface for monitoring the directional drilling process.


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Expert Witness #266731

This expert is an internationally recognized expert on the design, development and control of adjustable speed motor drives and generators over a wide range of applications, with more than 25 years of experience in this area. Current research interests include electromechanical energy conversion, design and control of power electronics converters/systems, numerical analysis of electromagnetic fields in energy conversion devices, and electric propulsion of electrified transportation. Among this expert’s funded work on all–electric drilling and hybrid hydraulic pumps includes the following:
• Experimental Development of LSRM Drive for Deep Well Pump
• Multi-Machine Control of Linear SRM Drives for Pump Applications
• Novel Low-Cost Method to Install Geophones for CO2 Monitoring
• Design of a Plunger System for Compressor Applications
• Design of Super High-Speed Motors for Drilling Applications

This expert holds 18 US patents with six more pending, and has co-authored over 300 scientific articles. This expert earned PhD, MS, and BS degrees in electrical engineering, and is currently a distinguished professor of engineering where this expert leads research and education in the area of motor drives and power electronics.


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