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Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2018  >  40(4): 573-576
PENG Song, JIANG Yiwei, SU Yaxian, JIANG Shuxia, LIU Jianyi. Content determination and critical precipitation pressure of elemental sulfur in sour gas rich in H2S in Puguang Gas Field[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2018, 40(4): 573-576. doi: 10.11781/sysydz201804573
Citation: PENG Song, JIANG Yiwei, SU Yaxian, JIANG Shuxia, LIU Jianyi. Content determination and critical precipitation pressure of elemental sulfur in sour gas rich in H2S in Puguang Gas Field[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2018, 40(4): 573-576. doi: 10.11781/sysydz201804573
shu

Content determination and critical precipitation pressure of elemental sulfur in sour gas rich in H2S in Puguang Gas Field

doi: 10.11781/sysydz201804573

  • 1. Exploration and Development Research Institute of SINOPEC Zhongyuan Oilfield, Puyang, Henan 457001, China;

  • 2. Puguang Branch Company of SINOPEC Zhongyuan Oilfield, Dazhou, Sichuan 635000, China;

  • 3. State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China

  • Received Date: 2017-09-17
  • Rev Recd Date: 2018-06-19
  • Publish Date: 2018-07-28
    Abstract
  • The actual content and critical precipitation pressure of elemental sulfur in sour gas with a high H2S content are regarded as two key parameters for studying sulfur deposition problems in the Puguang Gas Field. These two parameters have been quantitatively assessed using GC-MS, DMDS-DMA sulfur solvent and downhole gas samples from well 104-1 in the Puguang Gas Field. The experimental results showed that the sour gas in the Puguang Gas Field is unsaturated with an elemental sulfur content of 0.78 g/m3 at initial conditions. The critical precipitation pressure of sulfur in sour gas is 30.5 MPa, which means sulfur deposition has not yet occurred in a reservoir where a pressure of 35 MPa is greater than the critical precipitation pressure.

     

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