利用井口压力计算气井绝对无阻流量——塔里木异常高压气井应用效果评价  

CALCULATE ABSOLUTE OPEN FLOW CAPACITY BY WELLHEAD PRESSURE:ITS APPLICATION TO ABNORMAL—HIGH PRESSURE GAS WELLS,TARIM BASIN

作　　者：张建业[1] 伍藏原[2] 黄兰[1] 王鸿飞[2] 李玉林[3] 

机构地区：[1]中国石油塔里木油田公司勘探开发研究院 [2]中国石油塔里木油田公司天然气事业部 [3]中国石油塔里木油田公司建设工程有限责任公司

出　　处：《天然气勘探与开发》2011年第3期38-40,44,共4页Natural Gas Exploration and Development

摘　　要：针对迪那2异常高压气藏埋藏深、压力高、下井下压力计试井测试困难的实际情况,应用试油数据建立井口产能方程,并通过试井数据建立的产能方程所确定的井口无阻流量和绝对无阻流量来评价井口产能方程,统计表明迪那2气藏各井井口无阻流量与绝对无阻流量存在着很好的线性关系,应用二者的相关关系式,就可以用井口产能方程计算绝对无阻流量,为气井产能研究提供了一种新的方法。Dina 2 gas reservoir is characterized by deep burial depth and abnormal high pressure.So,it is very difficult for downhole pressure gauge to conduct a well test.In this study,an equation of wellhead deliverability is established by oil testing data.And it is evaluated through the wellhead open flow and absolute open flow determined by another deliverability equation from well test data.Results show that there exists a good linear correlation between wellhead open flow and absolute open flow in each well of Dina 2 gas reservoir.In addition,applying this correlation,absolute open flow can be calculated through wellhead deliverability equation,which provides a new method to study deliverability.

关 键 词：异常高压气井 产能 井口产能方程 无阻流量 

分 类 号：TE328[石油与天然气工程—油气田开发工程]