Volume 32 Issue 6
Nov.  2015
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REN Yi, ZHANG Mao, LU Yuan, WANG Zhongguang, SUN Jixing. Development of Seawater Base Annular Space Protection Fluid Used in Bohai Oilfield[J]. DRILLING FLUID & COMPLETION FLUID, 2015, 32(6): 35-38. doi: 10.3969/j.issn.1001-5620.2015.06.009
Citation: REN Yi, ZHANG Mao, LU Yuan, WANG Zhongguang, SUN Jixing. Development of Seawater Base Annular Space Protection Fluid Used in Bohai Oilfield[J]. DRILLING FLUID & COMPLETION FLUID, 2015, 32(6): 35-38. doi: 10.3969/j.issn.1001-5620.2015.06.009

Development of Seawater Base Annular Space Protection Fluid Used in Bohai Oilfield

doi: 10.3969/j.issn.1001-5620.2015.06.009
  • Received Date: 2015-07-04
  • Publish Date: 2015-11-30
  • A seawater base annular space protection fluid, CP-02.was developed for use in offshore drilling in Bohai oilfield where fresh water is in shortage on platforms.The formulation of CP-02 includes some additives selected through laboratory experiments, such as the biocide YHZWJ-15, scale inhibitor BHF-701 A, and corrosion inhibitor BHH-509, which is suitable for use in seawater.One example of the formulation is as this:Seawater+0.5% YHZWJ-15+0.01% BHF-701A+0.01% thiocarbamide+0.5% BHH-509.The rate of corrosion of the CP-02 to oil well pipes is as low as 0.005, 1 mm/a, indicating its good performance in protecting oil well pipe strings.

     

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