Drilling Practice of Large Extended Reach Horizontal Well in Shallow Low Permeability Reservoirs of Eastern Ordos Basin
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Research Institute of Yanchang Petroleum,Research Institute of Yanchang Petroleum,Research Institute of Yanchang Petroleum,Research Institute of Yanchang Petroleum

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TE243

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    Abstract:

    Well XPing1 is the first shallow extended reach horizontal well drilled by Yanchang Petroleum to develop the shallow, low permeability and low abundance oil reservoirs of Eastern Ordos Basin. Technical challenges of angle building and holding control, cuttings transportation in long horizontal hole section, large frictional resistance during trip and pressurized bit were overcome in the construction of this shallow horizontal well, which was finished at measured depth of 1366m with 1003.58m horizontal extension and 499.16m vertical depth. The ratio of horizontal extension to vertical depth is 2.01∶1. The finishing drilling of this well indicates that the high effective development of shallow, low permeability and low abundance oil reservoirs of Eastern Ordos Basin has become possible.

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History
  • Received:September 27,2014
  • Revised:January 08,2015
  • Adopted:January 11,2015
  • Online: March 06,2015
  • Published: