摘要：Low temperature and high pressure conditions favor the formation of gas clathrate hydrates which is undesirable during oil and gas industries operation. The management of hydrate formation and plugging risk is essential for the flow assurance in the oil and gas production. This study aims to show how hydrate management in the deepwater gas well testing operations in the South China Sea can be optimized. To prevent the plugging of hydrate, three hydrate management strategies are investigated. The first method, injecting thermodynamic hydrate inhibitor (THI) is the most commonly used method to prevent hydrate formation. THI tracking is utilized to obtain the distribution of mono ethylene glycol (MEG) along the pipeline. The optimal dosage of MEG is calculated through further analysis. The second method, hydrate slurry flow technology is applied to the gas well. Pressure drop ratio (PDR) is defined to denote the hydrate blockage risk margin. The third method is the kinetic hydrate inhibitor (KHI) injection. The delayed effect of KHI on the hydrate formation induction time ensures that hydrates do not form in the pipe. This method is effective in reducing the injection amount of inhibitor. The problems of the three hydrate management strategies which should be paid attention to in industrial application are analyzed. This work promotes the understanding of hydrate management strategies and provides guidance for hydrate management optimization in oil and gas industry.

关键字：hydrate slurry flow technology flow assurance hydrate management strategy deepwater gas well testing deepwater petroleum hydrates/coal bed methane/heavy oil/oil sands/tight gas natural gas technology oil/gas reservoirs petroleum engineering petroleum transport/pipelines/multiphase flow petroleum wells-drilling/production/construction

ISSN号：0195-0738

卷、期、页：卷: 142 期: 3

发表日期：2020-03-01

影响因子：0.000000

收录情况：SCIE（科学引文索引网络版）

发表期刊名称：JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME

参与作者：Ding, Lin,Li, Wang

通讯作者：宋尚飞,柳扬

第一作者：史博会,虞维超,宫敬

论文类型：期刊论文

论文概要：宋尚飞,史博会,虞维超,Ding, Lin,柳扬,Li, Wang,宫敬，Study on the Optimization of Hydrate Management Strategies in Deepwater Gas Well Testing Operations，JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME，2020，卷: 142 期: 3

论文题目：Study on the Optimization of Hydrate Management Strategies in Deepwater Gas Well Testing Operations