Volume 37 Issue 3
Jun.  2020
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Article Navigation >  DRILLING FLUID & COMPLETION FLUID  > 2020  >  37(3): 301-305
Zhang Kun, Wang Leilei, Dong Dianbin, Xu Shaoying, Ma hong, Huang Chen, Zhang Peng, Guo Yao. Study on and Application of a Polyamine Drilling Fluid[J]. DRILLING FLUID & COMPLETION FLUID, 2020, 37(3): 301-305. doi: 10.3969/j.issn.1001-5620.2020.03.006
Citation: Zhang Kun, Wang Leilei, Dong Dianbin, Xu Shaoying, Ma hong, Huang Chen, Zhang Peng, Guo Yao. Study on and Application of a Polyamine Drilling Fluid[J]. DRILLING FLUID & COMPLETION FLUID, 2020, 37(3): 301-305. doi: 10.3969/j.issn.1001-5620.2020.03.006
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Study on and Application of a Polyamine Drilling Fluid

doi: 10.3969/j.issn.1001-5620.2020.03.006

  • 1. Tianjin Key Laboratory of Complex Conditions Drilling Fluid, Tianjin 300280;

  • 2. Drilling Fluid Technology Services of CNPC Bohai Drilling Engineering Company Limited, Tianjin 300451

  • Received Date: 2020-02-14
  • Publish Date: 2020-06-28
    Abstract
  • The Minghuazhen Formation drilled in Dagang Oilfield is of highly mud making, making conventional polyamine drilling fluids laden with bentonite when drilling into this formation. High contents of bentonite in the drilling fluid make the bentonite colloid easy to be damaged when conventional polyamines are used, and this problem has been solved using this newly developed polyamine. A drilling fluid formulated with this polyamine has high tolerance to bentonite and works normally at 150℃. Contaminated with 10% bentonite, the drilling fluid still has good rheology. Biotoxicity, biodegradability and metal content of the polyamine all conform to the requirements of environment protection. Using drilling fluids formulated with this newly developed polyamine, the mud-making and borehole wall instability problems have been solved. The well Gang3-52-1, was drilled smoothly and successfully with the polyamine drilling fluid. Compared with wells drilled nearby, the ROP of the well Gang3-52-1 was increased by at least 70%, even though this well was deeper and had higher well angle and longer bottom hole displacement.

     

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