Research on Faster Drilling Technology of Coal-bed Methane Cluster Wells
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TE243

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    Abstract:

    Baode block is located in the north part of east Ordos basin and geotectonic location is at the north section of folded zone in west Shanxi. Through the analysis on former drilling data, the lithology of the formation in Baode block is mainly composed of mudstone and sandstone with high hardness, bad drillability and low drilling speed. As the development of coal-bed methane is characterized by low production and abundant wells and with the startup of large-scale production construction in Baode block, drilling speed plays a very important role and the research on fast drilling technology for coal-bed methane cluster wells is required. According to the geological conditions, on the basis of the existing drilling and logging data, the fast drilling technologies were studied in bit selection, bottom hole assembly optimization, drilling fluid property and construction technology. Through theoretical research and on-site experiment, a set of drilling technologies for cluster wells in Baode block has been put forward, which laid technical foundation for large-scale coal-bed methane production in this area.

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History
  • Received:January 19,2012
  • Revised:January 19,2012
  • Adopted:February 02,2012
  • Online: February 27,2012
  • Published: