Internet Workstation

Edition and Publication

Edition and Publication:
< Natural Gas and Oil > Editorial Department
Hosted by:
China Petroleum Engineering & Construction Corporation Southwest Company
Authorized by:
China Petroleum Engineering & Construction Corporation
Co-hosted by:
Overseas Research Center of Research Institute of Petroleum Exploration and Development
Editor in Chief:
Du Tonglin
Vice Editor in Chief:
Tang Xiaoyong,Pu Liming
Address:
No.6, Shenghua Road, High-tech District, Chengdu, Sichuan, China
Postal Code:
610041
Tel:
028-86014709
028-86014500
Email:
cnpc-ngo@cnpc.com.cn
Issue:ISSN 1006-5539
          CN 51-1183/TE

Links

    Your Position :Home->Past Journals Catalog->2023 Vol.4

    Measures to reduce the loss of dehydrated solution in shale gas
    Author of the article:QI Yaling, ZHANG Qinglin
    Author's Workplace:CPECC Southwest Company, Chengdu, Sichuan, 610041, China
    Key Words:Shale gas; Dehydration by solution absorption; Absorption solution loss; Solution degradation; Liquid carryover in the gas
    Abstract:

    In the shale gas dehydration process using solution absorption, the loss of absorption solution is the key control parameter for design and operation of this process. If the loss is large, on the one hand, the product gas will carry over the solution mist droplets. Precipitation would occur in the form of solid impurities due to changes in pressure, temperature, flow rate, flow pattern and pipeline corrosion during the gas transportation process, causing particle erosion and even blockage of downstream pipes and valves. On the other hand, the loss of absorption solution requires the continuous fresh replenishment, which greatly increases the operating cost of the dehydration operation. In order to analyze the factors causing solution loss and find out the effective measures to reduce loss, physical property research, engineering simulation, operating condition changes are carried out. Some measures to reduce solution loss are proposed, such as selecting optimum temperature and pressure of raw gas, deep pretreatment of impurities in the raw gas, installing high efficiency gas-liquid filter downstream of the gas outlet of the absorber, selecting optimum location of temperature measuring point for reboiler temperature, selecting suitable stripping gas volume in the regeneration process. The research findings provide a good reference for ways to reduce absorption solution loss via carryover from the dehydration system.

    CopyRight©2025Natural Gas and Oil Editorial Office Reserved 京ICP备11013578号-1