Gas Reservoir/Wellbore Orientation Screening Study: Survey of Horizontal Gas Well. Final Report, July 1991-September 1991. Documentation.

摘要

A survey was conducted to investigate the extent to which horizontal drilling technology has been applied to gas recovery. Results indicate that at least 76 horizontal gas wells have been completed since 1985. Activity has increased in recent years and is expected to continue increasing in the near future. An estimated 50 to 70 horizontal gas wells will be drilled in 1992. The success rate for horizontal wells is approximately 60 percent. Operators are very optimistic about horizontal wells with 74 percent of them planning to drill additional horizontal wells in the future. In many cases horizontal wells produce 3- to 8-fold production increases over vertical wells due to increased wellbore exposure and increased drainage area. The use of horizontal gas wells is expected to increase significantly in the next few years with this technology becoming an important factor of the gas industry.