DI conducts diverse reservoir studies ranging from small one-to-two-day consultancies to major field studies. These studies may include an evaluation of data sources such as cores, well logs, seismic records, production data, workover and completion reports, and well tests. The reservoir studies may include oil or gas-in-place determinations, material balance calculations, reserve estimates and property evaluations, gas deliverability, economic projections, and behind-pipe potential. DI has also been involved with the design, monitoring, and interpretation of waterflood projects.

Simulation studies are conducted using a 3-dimensional, 3-phase black oil simulator. DI has access to an internal black oil simulator, the IFLO model, and DOE's latest version of the BOAST 98 simulator. DI also has a full range of supporting software for the processing and plotting of data from the reservoir simulator. Software is available for analyzing multi-phase flow in the wellbore and for analyzing pressure transient data.
 
DI has particular expertise in the use of horizontal wells for waterflooding. Horizontal waterflooding is an emerging technology, which has yet to be fully exploited. The use of horizontal wells can be particularly useful in the economic recovery of oil from low permeability reservoirs and for the improvement of sweep efficiency in certain reservoir settings. Simulations are being used to help design horizontal well flooding processes.

• Simulation of a gas condensate reservoir in New Zealand.
  
  
• Simulation of waterflood performance for a field in southern Oklahoma and related expert testimony at the Oklahoma Corporation Commission.
  
  
• Development of exploration data packages for the Directorate General Hydrocarbons, India.
  
  
• Evaluation of the two largest oil fields in India for the Asian Development Bank.
  
  
• Consultant to the Asian Development Bank for a fact-finding mission to India for the development of gas field projects in the Bombay offshore area.
  
  
• Development of exploration prospects in Yemen, Myanmar, and production prospects in Brazil.
  
  
• Implementation of a major reservoir study on an oil field in Myanmar for the World Bank.