Home > Archive>Volume 47, Issue 6, 2020 >30-36. DOI:1672-7428（2020）06-0030-07
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Structure optimization of Well Gucheng—601
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1.Drilling Engineering and Technology Research Institute, CNPC Daqing Drilling Exploration and Engineering Company, Daqing Heilongjiang 163413, China; 2.Exploration Department of Daqing Oilfield Co., Ltd., CNPC, Daqing Heilongjiang 163410, China

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TE22；P634

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    Abstract:

    According to actual drilling wells in Gucheng area, there are many technical difficulties in drilling "black quilt" strata, H2S, stuck drilling, well leakage, overflow, well collapse and formation pressure and temperature, which lead to long drilling cycle and high drilling cost in this block. Geological characteristics in this paper, according to the ancient city area, combined with the drilling purpose of well Gucheng 601 and well completion method, the comprehensive consideration of well bore such as formation pressure, will seal point, on the premise of ensuring safety and quality, optimize well structure of Well Gucheng601, according to the real drilling verified that the design is reasonable, for optimize well structure of Well Gucheng601 well bore structure design provides a new way of thinking.

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History
  • Received:July 10,2019
  • Revised:April 27,2020
  • Adopted:May 09,2020
  • Online: July 03,2020
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