Volume 33 Issue 5
Sep.  2016
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FENG Wangsheng, TIAN Qunshan, DU Jiang, LIANG Xingping, TENG Zhaojian. Horizontal Well Cementing Technology Used in Yumen Oilfield[J]. DRILLING FLUID & COMPLETION FLUID, 2016, 33(5): 98-102. doi: 10.3969/j.issn.1001-5620.2016.05.021
Citation: FENG Wangsheng, TIAN Qunshan, DU Jiang, LIANG Xingping, TENG Zhaojian. Horizontal Well Cementing Technology Used in Yumen Oilfield[J]. DRILLING FLUID & COMPLETION FLUID, 2016, 33(5): 98-102. doi: 10.3969/j.issn.1001-5620.2016.05.021

Horizontal Well Cementing Technology Used in Yumen Oilfield

doi: 10.3969/j.issn.1001-5620.2016.05.021
  • Received Date: 2016-04-21
  • Publish Date: 2016-09-30
  • A set of well cementing technologies, such as oil-displacing prepad fluid, toughness-enhanced anti-channeling cement slurries, and the evaluation of the integrity of cement sheath, was developed to improve the job quality of cementing horizontal wells (in which multistage fracturing will be performed) in Yumen Oilfield. These technologies, special for cementing horizontal wells drilled in Yumen Oilfield,were aimed at establishing long-termzonal isolation, and were developed based on the studies on cementing materials, the failure of cement sheath, and cementing techniques. These technologies have been applied on seven horizontal wells in Yumen since 2015, and the cementing job quality of each well was satisfactory at the first try, and four wells out of the seven wells had excellent cementing job quality. Each of three wells that have been cemented with these technologies and have put into production has average water cut that is less than 30% after fracturing, lower than the water cut of the wells drilled in the same block. These technologies have also been applied on eight wells with small annular spaces, and 75% of the cementing job was excellent. These technologies are promising and have gained good results in horizontal well cementing.

     

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