Worldwide Petroleum Consulting
Tad M. Fielder

Tad M. Fielder

Tad M. Fielder
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Tad M. Fielder joined DeGolyer and MacNaughton in 2006 specializing in reservoir engineering and oil and gas property evaluation.

Fielder received a bachelor’s degree in petroleum engineering from Texas A&M University in 2000. A registered professional engineer in the State of Texas, member of and Certified Petroleum Engineer with the Society of Petroleum Engineers, and member of the Society of Petroleum Evaluation Engineers, Fielder was elected a Vice President at D&M in 2009.

Geographical Experience

  • Australia
  • Bolivia
  • China
  • Colombia
  • India
  • Indonesia
  • Malaysia
  • Mexico
  • New Zealand
  • Peru
  • Thailand
  • Vietnam

Topical Areas of Expertise

  • Fair market value appraisals
  • Gas-deliverability modeling
  • Material-balance calculations
  • Tight oil and gas reserves
  • Volumetric estimations
  • Waterflood projects

Major Projects
Fielder has estimated oil and gas reserves and contingent resources using such standard engineering methods as volumetrics, material balance, and historical production analysis. He has extensive experience forecasting oil and gas production using decline-curve analysis, fractional flow analysis, and single-cell reservoir models, and has worked on projects implementing reservoir simulation of geocellular models.  He has evaluated reserves and contingent resources for a variety of oil and gas reservoirs, many of which have used secondary recovery techniques such as steam flood, waterflood, and pressure maintenance recovery methods. He has evaluated complex reservoirs, including conventional tight oil and gas reservoirs, fractured carbonate reservoirs, chalks, shale gas, and coalbed methane reservoirs.

Fielder has coordinated global reserves and resources evaluation projects. He has led D&M teams to evaluate potential acquisition and divestiture projects in China, Indonesia, Malaysia, PNG, and Vietnam. Fielder is experienced coordinating and performing evaluations in a data room setting.

Prior to joining D&M, Fielder carried out evaluations of reserves and project economics of oil and natural gas properties in major producing areas of Texas, Oklahoma, Kansas, and California. Fielder performed a variety of valuation assignments, including fair market value appraisals, ad valorem tax appraisals, asset sales allocations, and business and stock valuations. He performed annual inspections of cryogenic facilities, gas plants, fractionation facilities, lean oil facilities, and gas storage sites.

Fielder has designed drilling programs, casing and tubing strings, and has selected depths, phase, and other shot specifics for perforation. He has coordinated and supervised drilling and recompletion of oil and gas wells for various clients. He has performed reservoir analysis to help optimize waterflood and infill drilling projects and proved undeveloped drilling locations.