Volume 33 Issue 3
May  2016
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Article Navigation >  DRILLING FLUID & COMPLETION FLUID  > 2016  >  33(3): 73-77,83
XIN Haipeng, WANG Jianyao, ZHOU Zhiqin, HE Shuli, ZENG Jianguo, FU Zhenghua, SUN Fuquan. The Application of Phosphate Cement Slurry Used in Cementing In-situ Combustion Reservoir Section of Well X in LKQ Area[J]. DRILLING FLUID & COMPLETION FLUID, 2016, 33(3): 73-77,83. doi: 10.3969/j.issn.1001-5620.2016.03.015
Citation: XIN Haipeng, WANG Jianyao, ZHOU Zhiqin, HE Shuli, ZENG Jianguo, FU Zhenghua, SUN Fuquan. The Application of Phosphate Cement Slurry Used in Cementing In-situ Combustion Reservoir Section of Well X in LKQ Area[J]. DRILLING FLUID & COMPLETION FLUID, 2016, 33(3): 73-77,83. doi: 10.3969/j.issn.1001-5620.2016.03.015
shu

The Application of Phosphate Cement Slurry Used in Cementing In-situ Combustion Reservoir Section of Well X in LKQ Area

doi: 10.3969/j.issn.1001-5620.2016.03.015
  • 1.

    CNPC Offshore Engineering Co. Ltd., Laboratory of Cementing Technology of CNPC Key Laboratory of Drilling Engineering, Tianjin 300451

  • 2. Research Institute of Engineering Technology, Tuha Oilfield Division, Turpan, Xinjiang 838202

  • 3. The Well Cementing Branch of the GWDC, Panjin, Liaoning 124010

  • Received Date: 2015-12-09
  • Publish Date: 2016-05-31
    Abstract
  • In-situ combustion and fire-flooding have been done by injecting air into the well X in TH oilfield to try to develop the thick oil resources effectively. In this area the reservoir formations have high permeability and mud losses into the formations have occurred frequently before, resulting in poor cementing job quality. Phosphate cement has been chosen for use in well cementing because this cement is resistant to CO2 corrosion and has good high temperature performance, and the strength of the set phosphate cement measured by ultrasonic sound develops faster. The phosphate cementing slurries are formulated with these additives:phosphate cement BCM-600S, filter loss reducer BCF-600L, cementing retarder BCR-600S and defoamer G603. Laboratory evaluation demonstrates that the phosphate cement slurries are resistant to high temperatures to 550℃ when set, and their high temperature strength can last for a long time. The whole length of the well X was cemented with the phosphate cement slurries, 93.8% of the hole section has been cemented excellently. The phosphate cement can be used in other cementing operations.

     

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