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->2016 Vol.6

    Research and Application of A New Hydrate Inhibitor Z-6
    Author of the article:Zhang Rongfu, Huang Xiangfeng
    Author's Workplace：Sinopec North China Oil & Gas Company 2nd Gas Recovery Plant
    Key Words：New hydrate inhibitor, Methanol; Plug prevention; Safety and environmental protection
    Abstract：The low temperature of winter leads to hydrate blockage in gas pipeline and wellbore. Methanol is often used to prevent hydrate formation in Dongsheng gas field. It has brought serious effect on environmental protection because of toxicity and volatility. Therefore, it is necessary to find an effective hydrate inhibitor to meet both the production and environmental protection and safety in Dongsheng gas field. For this reason, research and field application of a new nontoxic hydrate inhibitor Z-6 has been launched based on the research on the inhibition technology of hydrate at home and abroad. In consideration of the practical production of gas well, continuous drip process of self-reliance type is applied in the gas field. Application results have showed that it can completely meet the gas field production. the production rate have reached 95% and have increased 7 percentage points over the same period after the use of new non-toxic hydrate inhibitor. Single plug-release takes 7h and reduced by nearly half comparing with the previous period. The dosage of the chemicals was only 30% of methanol in the same period. The corrosion inhibition rate has been about 80%, which slows down the corrosion rate of down­ hole string. Results show that the prevention and plug removal effect of the new hydrate inhibitor is better than that of methanol. It meets the requirements of production and environmental protection at site.

     


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