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new fracturing techniques reduce tight gas sand completion problems

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 269
new fracturing stimmulation technology contributed to solving problems in completing tight gas sands in the carthage cotton valley field in texas. these technologies included improved fluid systems, computer-controlled proppant placement, multiple isotope radioactive logs, mechanical properties logs, and innovative casing design drilling activity in the carthage field commenced on a large scale in 1978 and 1979. at that time, the natural gas policy act of 1978 first allowed higher gas prices. pennzoil exploration && production co. drilled 32 wells during that period. initial development was on 640 acre spacing. the project was successful. drilling operations averaged 30 rig days (545 hr rotating)/well. this time was 15 less than the original projection. by december 1990, the 74 wells were flowing to the pipeline and had produced a cumulative of 35 bcf. flow averaged 1,012 mcfd
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