Volume 36 Issue 5
Oct.  2019
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GUO Gang, LI Qiongwei, YANG Lihua, LU Wenwei. Development and Application of Organic Resin for Controlling Loss of Borehole Fluids in Cased Hole[J]. DRILLING FLUID & COMPLETION FLUID, 2019, 36(5): 659-662. doi: 10.3969/j.issn.1001-5620.2019.05.023
Citation: GUO Gang, LI Qiongwei, YANG Lihua, LU Wenwei. Development and Application of Organic Resin for Controlling Loss of Borehole Fluids in Cased Hole[J]. DRILLING FLUID & COMPLETION FLUID, 2019, 36(5): 659-662. doi: 10.3969/j.issn.1001-5620.2019.05.023
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Development and Application of Organic Resin for Controlling Loss of Borehole Fluids in Cased Hole

doi: 10.3969/j.issn.1001-5620.2019.05.023

  • 1. National Engineering Laboratory of Low Permeability Oil and Gas Field Exploration and Development, Xi'an, Shannxi 710018;

  • 2. Research Institute of Oil and Gas Technology, PetroChina Changqing Oilfield Company, Xi'an, Shannxi 710018

  • Received Date: 2019-06-07
  • Publish Date: 2019-10-30
    Abstract
  • Cement slurry used as a lost circulation material in controlling loss of borehole fluids through casing string has long been faced with problems such as its poor gas tightness and injectivity. This paper introduces the development of a liquid resin which can be used to replace cement slurry in loss control and the evaluation of the performance of the resin. The liquid resin has been tried in field operations. It was found that after setting at 60℃ for 4.5 h, the resin had compressive strength of 118 MPa, the shear strength of the resin adhered on the casing string was 26.1 MPa, and the bonding strength of the resin with rock reached 10.5 MPa. The resin had good oil resistance and drillability. This resin has been used in the Well Zhen-A for controlling loss of borehole fluids and well produced again with good production rate. In another well Hua-B, after applying the resin, the well was re-fractured with good results. Field practice has provided a technical reference to the use of the liquid resin as a lost circulation material and a reliable technology for dealing with loss across the casing strings.

     

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