Petroleum - Natural Gas Engineering Expert Witnesses: 5

Chet  Sandberg, P.E. received a BS in Mechanical Engineering from MIT and a MS in Electrical Engineering from Stanford. He is a professional engineer in the state of California and an IEEE Fellow.

Background Experience - Litigation Support - Mr. Sandberg is an Expert Lithium Ion Battery  and Heat Transfer Expert with successful litigation in Lithium Ion Battery Failure.  He has court room experience, including testifying before the ITC in Washington DC. Mr. Sandberg is available to attorneys for both plaintiff and defendant. Mr. Sandberg joined the Chemelex Division of Raychem Corporation where he managed technology projects for 30 years. He held various positions at Raychem culminating as Chief Engineer.

For the next 6 years, Mr. Sandberg managed the development of a downhole, self-regulating electrical heater technology for Shell Oil. In 2009, he founded C L Sandberg & Associates, a consultancy specializing in Energy Projects, including managing customer engineering for Altairnano, a lithium ion battery manufacturer.

Mr. Sandberg has been associated with Electrical Energy Storage at EPRI, ESA, Sandia, and PNNL, as well as providing due diligence expertise for venture capital and private equity companies on their technical prospective investments. He has been granted 30 United States Patents and has authored over 70 technical papers on energy usage, electric heat tracing, ground fault technology, fiber optics, sensor technology, and personal computers as design tools. 

 Areas of Expertise:

JOHN A. WILLIAMS, PhD, PE, ASA, MBA, CFEI, AIChE Fellow

Dr. Williams is an International Engineering and Energy Technology Expert in the engineering analysis and financial appraisals of energy, power, and manufacturing technologies, related intellectual property (patents, trade secrets, trademarks), licensing, royalty structures, market analysis, infringement, contract breach, fraud, compensatory, taxation, and lost profit damages. Dr. Williams provides engineering analysis, forensics, financial appraisals, and quantification of economic damages for oil & gas production, solar, wind, manufacturing, oil refining, chemicals, power generation, electrical distribution, steam, RNG biogas, biomass, ethanol, biodiesel, bioprocessing, food ingredients, geothermal, coal, nuclear, steelmaking, glassmaking, storage, pipelines, water treatment, and waste-to-energy technologies, equipment, construction, and facilities.

With over 40 years of industry experience in operations, R&D, cost estimating, finance, and construction (EPC, EPCM), Dr. Williams offers a unique synergy of engineering expertise and business acumen. His exceptional ability to analyze complex technical and financial matters and express them in understandable terms has made him a sought-after expert witness in litigation risk and exposure, dispute resolution and high-stakes litigation.

Dr. Williams has led EPS, a full-service engineering firm, since 1995. Since 1996, he has been recognized by AIChE, ASME, and ASA for developing and instructing courses in technology development, project management, cost engineering, financial evaluation methods, and financial appraisals of technologies and intellectual property. His credentials include:

• Accredited Senior Appraiser (ASA) by the American Society of Appraisers in Machinery & Technical Specialties: Energy, Environmental, and Manufacturing Technologies.
• Certified Fire and Explosion Investigator (CFEI) by the National Association of Fire Investigators.
• Fellow of the American Institute of Chemical Engineers.
• PhD in Chemical and Fuels Engineering from the University of Utah
• MBA in Finance from the University of Chicago
• BS in Chemistry from the University of Delaware
• Licensed Professional Engineer in over 20 states

Derek B. Gilboe, PE, a Metallurgical Engineer with over 30 years of experience, focuses on asset integrity using knowledge of metallurgy, materials, and processes in multiple industries on four continents in environments from arctic to desert in onshore and offshore conditions. He brings extensive knowledge in standards and regulations relating to Oil and Gas Piping and Pipelines.

Mr. Gilboe has experience with operators, service providers, and consultants on projects ranging from $100k to over $5 billion. His specialty has been midstream and piping, focusing on forensic engineering, integrity engineering, and failure investigations.

Litigation Support - Mr. Gilboe provide analysis and opinions for legal cases and is open to any client requiring expert witness services for a legal case or an organization requiring fractional engineering services. He can explain complex engineering concepts, principles, methods, and standards in a clear and understandable way. He analyzes, evaluates, and verifies engineering evidence, such as documents, drawings, calculations, tests, experiments, simulations, or models and provides independent and objective opinions on the engineering aspects of a case, such as causation, liability, damages, or remedies.

Areas of Expertise:

Florida Office:
Andrew Avalon, PE, PSP
Chairman & CEO
8633 Willow Kane Court
Orlando, FL 32835
aavalon@long-intl.com
T: (407) 445-0825     F: (407) 650-3399

Long International provides expert engineering and construction claims analysis, expert testimony, project management consulting, and insurance claims analysis services. We focus on projects in the following industries: building and construction; gas, gasification, GTL, LNG, and NGL; industrial and manufacturing; mineral and mineral processing; offshore oil and gas; oil sands; pipelines and utilities; power; refineries, petrochemical, and chemical; transportation; and water, wastewater, dams, and marine. We analyze claims, not limited to, disputed change orders, schedule delay, acceleration, time extensions, liquidated damages, loss of productivity, defective specifications, and deficient project management performance.

Richard J. Long, P.E., P.Eng., Founder of Long International, has over 50 years of U.S. and international consulting experience involving construction contract disputes analysis and resolution, arbitration/litigation support and expert testimony, project management, engineering/construction management, cost and schedule control, and process engineering. As an internationally recognized expert in the analysis and resolution of complex construction disputes for over 35 years, Mr. Long has served as the lead expert on over 300 projects having claims ranging in size from US$100,000 to over US$2 billion. He has presented and published numerous articles on claims analysis, entitlement issues, CPM schedule and damages analyses, cumulative impact claims, and claims prevention.

Rod C. Carter, CCP, PSP is President of Long International and has over 20 years of experience in construction project controls, contract disputes and resolution, negotiations, mediation, arbitration support, and expert testimony on scheduling, loss of productivity, and quantum issues.  He has experience in entitlement, schedule, and damages analyses on over 30 construction disputes ranging in value from US$100,000 to US$7 billion, related to oil and gas, oil refinery, LNG, heavy civil, nuclear, environmental, chemical, power, industrial, commercial, and residential construction projects. Mr. Carter specializes in loss of productivity, cumulative impact, and quantum calculations, and had a lead role in assessing damages on more than a dozen major disputes.  In addition, Mr. Carter has developed cost and schedule risk analysis models using Monte Carlo simulations to address the uncertainty of estimates and claims.

Scott M. Francis, P.E., PSP is a Vice President of Long International and has over 20 years of experience in project management, contract disputes analysis and resolution, CPM schedule preparation, execution, and analysis, productivity analysis, contract administration, design engineering, construction management, and government contracting.  He provides schedule development and assurance services, cost estimating, and claims analysis services on projects for both owners and contractors.  Specific responsibilities include CPM development and reviews, CPM schedule delay and acceleration analyses, change order impact analysis, issue identification, correlation of impacts to schedule activities, and productivity evaluations.

Harold E. McGowen, III, PE, is a proven authority in Oil and Gas exploration and development. As an engineer and businessman with 40+ years of experience building and leading oil and gas companies, he provides technical acumen, clear communication, and industry knowledge in cases involving trade secrets, patents, securities, operational failures, and safety. 

Expertise in Trade Secrets and Patents

• Harold has testified in numerous intellectual property disputes involving downhole tools, hydraulic fracturing, and drilling technologies.
• His ability to evaluate technical designs and assess claims of patent infringement or trade secret misappropriation is grounded in decades of hands-on industry experience and as an expert on numerous patent cases.
• He links technical insights to business and legal outcomes, delivering fact-based conclusions that resonate with courts and juries.

Securities Litigation Proficiency

• Harold’s expertise includes evaluating whether companies accurately represented reserves, operational performance, and development strategies to investors.
• His testimony has been instrumental where overstated reserves or misleading economic projections were alleged, focusing on adherence to reasonable claims and industry best practices.

Broad Litigation Experience

• Harold has provided expert testimony and litigation support in over 40 cases, addressing issues such as operational failures, safety lapses, and intellectual property disputes.
• He consistently ties technical findings to best practices and organizational responsibilities, ensuring clarity and relevance for legal audiences.

Leadership and Innovation

• As CEO of oil and gas operating companies, Harold led multimillion-dollar projects, optimizing drilling and completion strategies and ensuring compliance with industry standards.
• He has authored technical papers and presented on topics including hydraulic fracturing, drilling optimization, and project management.

Harold’s unique combination of technical expertise, hands-on experience, and litigation support experience ensures clear communication with attorneys, judges, and juries. For trade secrets, patents, securities disputes, or operational safety cases, Harold E. McGowen III, PE, delivers clarity, credibility, and results.

View Harold McGowen's Business Consulting Profile.