Drilling Difficulties of CBM Cluster Wells in Baiyanghe Mining Area and the Related Solutions
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Shandong Kerui Oilfield Service Group Corporation,No. 156 Exploration Team of Xinjiang Bureau of Coalfield Geology,No. 156 Exploration Team of Xinjiang Bureau of Coalfield Geology

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P634.5

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    Abstract:

    Baiyanghe CBM pilot demonstration project in Fukang City of Xinjiang Uygur Autonomous Region is the first CBM demonstration project in Xinjiang. The general structure of Baiyanghe mining area is monoclinal structure in the direction of south with large dip angle, and large spacing in multi coal seams. Cluster wells are the main type for this demonstration project development plan. By many years drilling practice, this technology have been very mature in CBM block of east Ordos basin, a set of cluster wells drilling technology suitable for CBM development in this area is preliminarily formed. As the geological conditions in Baiyanghe mining area are quite different with east Ordos basin block, especially with the characteristic of large dip angle, multiple coal seams and large seam spacing, the cluster wells drilling technology in East Ordos Basin cannot be directly adopted. Based on the geological data, this paper analyzes the difficulties of CBM cluster wells drilling in Baiyanghe mining area, summarizes and expounds the technical countermeasures. The drilling technology of cluster wells suitable for Baiyanghe mining area has been developed.

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History
  • Received:March 26,2016
  • Revised:July 08,2016
  • Adopted:July 13,2016
  • Online: December 21,2016
  • Published:
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