大牛地气田一点法试井对计算无阻流量的影响  

The Effect of One Point Well Testing Technique to the Calculation of Unresisted Flow in Daniudi Gas Field

作　　者：张兴权 

机构地区：[1]华北石油局井下作业大队,河南郑州450042

出　　处：《油气井测试》2007年第6期19-20,共2页Well Testing

摘　　要：一点法试井只要求测取稳定的地层压力、一个工作制度下的稳定流压,可以缩短测试时间,减少气体的放空和节约费用。但一点法对资料的分析带有一定的经验性和统计性分析误差,特别是对于属于低渗透气藏的大牛地气田,所计算的无阻流量均偏高。经验统计表明,开井时间越长,所求的无阻流量越低,准确性越高。One point well testing technique only needs the stable formation p ressure and stable flow pressure under a working system which decreases testing time, emits gas and treatment cost largely to the exploration well. But the data analysis is relied on experience and statistics in a certain extent, so sometimes it makes big errors. Daniudi gas field is a low permeable gas field, the pressure buildups lowly. The measured formation static pressure is low and the flow pressure is hi gh, so the calculated unresisted flow is high. The experienced statistics show that the open well time is longer, the unresisted flow is lower, the result is more exact.

关 键 词：大牛地气田 一点法 无阻流量 不稳定试井 产层预测 

分 类 号：TE373[石油与天然气工程—油气田开发工程]