Volume 45 Issue 6
Nov.  2017
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WANG Tong, SUN Yongtao, BAI Jianhua, MA Zenghua, JIANG Zhaoping, LI Haitao. The Development and Testing of Heat-Resistant Subsurface Safety Control Devices in Offshore Operations[J]. Petroleum Drilling Techniques, 2017, 45(6): 49-54. DOI: 10.11911/syztjs.201706009
Citation: WANG Tong, SUN Yongtao, BAI Jianhua, MA Zenghua, JIANG Zhaoping, LI Haitao. The Development and Testing of Heat-Resistant Subsurface Safety Control Devices in Offshore Operations[J]. Petroleum Drilling Techniques, 2017, 45(6): 49-54. DOI: 10.11911/syztjs.201706009
shu

The Development and Testing of Heat-Resistant Subsurface Safety Control Devices in Offshore Operations

  • 1.

    Oilfield Production Department, China Oilfield Services Limited, Tianjin, 300459, China;

  • 2.

    Bohai Petroleum Research Institute, Tianjin Branch of CNOOC(China) Co. Ltd., Tianjin, 300459, China

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  • Received Date: May 27, 2017
  • Revised Date: October 29, 2017
    Graphical Abstract
    • Abstract
  • According to safety regulations for offshore oil production,all offshore producers are required to be equipped with subsurface safety control devices.But all available subsurface safety control devices currently available may not meet the heat-resistant demands for wells with thermal production.Considering the demands of offshore heat-injection wells for subsurface safety control devices,Y241 type thermal packer,heat-resistant subsurface safety valve,insulated compensator,wellhead crossovers and other heat-resitant subsurface safety control devices were developed through a combination of optimal sealing materials and sealing modes.Laboratory and field tests showed that Y241 type thermal packer,heat-resistant subsurface safety valve,insulated compensator and wellhead crossovers presented outstanding sealing performances under room temperature and excellent performance with high temperatures up to 350℃.The results demonstrate that the newly-developed heat-resistant subsurface safety control devices possess rational structural design,desirable heat-resisant and sealing performances to satisfy the demands of heat-injection wells.the application of these devices can effectviely enhance safety performances of heat-injection wells.
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    • References (16)
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