Volume 32 Issue 1
Jan.  2015
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GUO Limei, XIAO Miao, LIU Juxiang. Pressure Activated Sealant[J]. DRILLING FLUID & COMPLETION FLUID, 2015, 32(1): 65-68. doi: 10.3969/j.issn.1001-5620.2015.01.017
Citation: GUO Limei, XIAO Miao, LIU Juxiang. Pressure Activated Sealant[J]. DRILLING FLUID & COMPLETION FLUID, 2015, 32(1): 65-68. doi: 10.3969/j.issn.1001-5620.2015.01.017
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Pressure Activated Sealant

doi: 10.3969/j.issn.1001-5620.2015.01.017

  • Room 529 of 6th Building, Tianjin University of Science and Technology, No.29, Thirteenth Street, Tianjin Economic and Technological Development Area, Tianjin 300457, china

  • Received Date: 2014-12-10
  • Publish Date: 2015-01-30
    Abstract
  • A pressure activated sealant was developed to overcome leaking of oil well pipework. The sealant was formulated with butyronitrile latex as base additive, CH3COONa, MgSO4 and NaCl as activators, Gemini1231 and Gemini1631 as terminators and sodium montmorillonite as stabilizer. Laboratory study showed that this sealant only became coagulated at leaking sites where there were differential pressures, otherwise maintained in mobile state. The sealant worked at temperatures between -20℃ and 120℃ and had particle sizes between 0 μm and 1,000 μm, or bigger. In a simulation test with 139.7 mm tubing in which the thread was damaged, when leaking rate was 600 mL/min, the leaking was stopped after applying the sealant and waiting for 60 s. After reparation, no leaking was found for the tubing under 40 MPa of water pressure and 35 MPa of nitrogen gas pressure, satisfying the requirement of industrial standard.

     

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  • 李丹平.碳酸盐地层套管的腐蚀行为研究[D].西安石油大学,2013,05. Li Danping.Study on corrosion behavior of casing in carbonate strata[D].Xi'an Shiyou University,2013,05.
    Chivvis R W,Julian J Y,Cary D N. Pressure-activated sealant economically repairs casing leaks on prudhoe bay wells[J].SPE 120978,2009.
    Rusch D W.Subsea leaks cured with pressure-activated sealant[J]. SPE 88566,2004.
    Miguel A M,Javier Hernandez/PEMEX,David W R. Leak-sealant inhydraulic systems minimizes maintenance costs in offshore wells[J]. SPE 59026,2000.
    Michael A Romano,Giusepe Rodri,Magadrill.A cost effective alternative to conventional leak repair methods[J]. SPE Technical Bulletin 1/06, 2006,31-34.
    David W,Rusch,Barry C,et al.Use of pressure activated sealants to cure sources of casing pressure[J]. SPE 55996, 1999.
    雷鑫宇,陈大钧,李小可,等. 油井水泥缓释自修复技术研究[J]. 钻井液与完井液,2013,30(5):60-62. Lei Xinyu,Chen Dajun,Li Xiaoke,et al.Research on slow-release self-healing technology of oil-well cement[J]. Drilling Fluid & Completion Fluid,2013,30(5):60-62.
    夏元博,刘爱萍. 套管试压对固井第一界面水力密封失效的影响[J]. 钻井液与完井液,2011,28(S1):60-62. Xia Yuanbo,Liu Aiping.Research on effect of casing pressure test to cement-casing interface hydraulic sealing property[J].Drilling Fluid & Completion Fluid,2011,28(S1):60-62.
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