Volume 36 Issue 3
Jun.  2019
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Article Navigation >  DRILLING FLUID & COMPLETION FLUID  > 2019  >  36(3): 321-324
XIAO Jinyu, ZHOU Hua'an, SUN Jun, LIU Yi, CHEN Fuquan, WANG Kai. Optimization and Field Application of Drilling Fluid Technology for Well Yudong-7-4-2[J]. DRILLING FLUID & COMPLETION FLUID, 2019, 36(3): 321-324. doi: 10.3969/j.issn.1001-5620.2019.03.010
Citation: XIAO Jinyu, ZHOU Hua'an, SUN Jun, LIU Yi, CHEN Fuquan, WANG Kai. Optimization and Field Application of Drilling Fluid Technology for Well Yudong-7-4-2[J]. DRILLING FLUID & COMPLETION FLUID, 2019, 36(3): 321-324. doi: 10.3969/j.issn.1001-5620.2019.03.010
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Optimization and Field Application of Drilling Fluid Technology for Well Yudong-7-4-2

doi: 10.3969/j.issn.1001-5620.2019.03.010

  • 1. Drilling Fluid Technology Service Company of Chuanqing Drilling Engineering Company, Chengdu, Sichuan 610056;

  • 2. Xinjiang Branch Office of CCDC, Korla, Xinjiang 841000;

  • 3. Natural Gas Business Unit of Tarim Oil Field, Korla, Xinjiang 841000

  • Received Date: 2019-02-17
  • Publish Date: 2019-06-30
    Abstract
  • Drilling operations in the Block Yudong in north Tarim Basin have long been faced with a series of problems, such as tight hole in the upper formations which results in drag and overpull, creeping of salt/gypsum sections which results in tight spots, sloughing and pipe sticking, and difficulties in controlling rheology and filtration of the drilling fluid because of high mud weight. By optimizing the drilling fluid technology on the well Yudong-7-4-2, drag, overpull and borehole wall instability have all been resolved. Percent hole washout in easy-to-collapse sections was only 7.5%. Drilling time was 20 days less than wells drilled nearby, indicating the ROP was greatly increased.

     

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