Gas Reservoir-Wellbore Orientation Screening Study. Final Report, July 1990-September 1991.

摘要

This report summarizes the results of a project to develop a preliminary screening process to assist reservoir engineers in evaluating various gas reservoir prospects. An easy-to-use gas reservoir screening program was developed during the project. Designed for use with desktop PC's, GMOD is an analytical gas well production model based on published theoretical reservoir models and is capable of generating well production data quickly and efficiently for horizontal, vertical, slant, and hydraulically-fractured vertical gas wells. A parametric study was performed to investigate the effects of numerous wellbore and reservoir parameters on gas well productivity. This study was conducted with GMOD and other in-house Maurer Engineering programs. Wellbore and reservoir parameters were varied independently and effects on gas production from the four well types were determined. A survey of the gas industry was conducted to determine the extent of the application of horizontal drilling technology to gas exploration. The results show that at least 76 horizontal gas wells have been drilled and that the use of horizontal drilling technology for gas production will continue to increase in the future.