Calculation Method of Gas Hydrate Formation Inhibitor Concentration for Qiong Dongnan Deepwatwer Drilling

摘要：

　　Sinopec has planned to develop the oil and gas district of Qiong Dongnan deepwater area.Gas hydrate would be formed easily under high pressure and low temperature condition in some well section when gas kick happened and cause many problems during drilling.Temperature and pressure distfibution and phase equilibrium condition determination method of Qiong Dongnan deepwater area have been established with consideration of Qiong Dongnan sea water temperature distribution and different well section, drilling condition and hydraulic parameters.The hydraulic formation region and inhibitor concentration prediction model are established based on the temperature-pressure distribution and hydrate phase equilibrium condition.According to the calculation example of a deepwater well in Huaguang district of Qiong Dongnan area, the law about influence parameters on hydrate formation region has been analyzed and recommended inhibitor concentration program is provided.

关键词： Deepwater drilling Gas hydrate Phase equilibrium condition Inhibitor concentration

作者: Ke Ke Qiang Zhang Minsheng Wang

作者单位: Sinopec Research Institute of Petroleum Engineering,Beijing,China

会议类型: 国际会议

会议名称: SUT International Conterence on Subsea Technology and Deepwater Engineering(SUT 水下技术和深水工程国际会议)

会议地点: 深圳

会议语种:英文

页码: 386-398

在线出版日期: 2012-09-25（万方平台首次上网日期，不代表论文的发表时间）