新场沙溪庙气藏不关井确定地层压力研究  

The Determination of The Method to Dalculate Formation Pressure of Gas Well On Non-shut Conditions in Xinchang Gas Reservoir

作　　者：冯松[1] 李祖友[1] 严小勇[1] 岳迎春 夏连彬 

机构地区：[1]中石化西南油气分公司川西采气厂 [2]中石化西南石油工程有限公司井下作业分公司,四川德阳618000 [3]中石油西南油气田分公司采气工程研究院,四川广汉618300

出　　处：《内蒙古石油化工》2015年第21期22-26,共5页Inner Mongolia Petrochemical Industry

摘　　要：川西新场沙溪庙气藏属于低渗致密气藏,传统方法存在诸多局限,因此提出了运用生产数据分析技术进行计算。首先结合气井产水特征优选出Hagedorn-Brown井底流压计算模型;再以TOPAZE生产分析软件为平台,运用生产数据分析方法求取地层压力;最后将求取的结果与压恢试井结果进行对比分析,具有较好的线性相关性,得到校正公式y=0.8619x+2.1882。运用上述方法和校正公式,对部分新场沙溪庙气井地层压力进行了计算,与实测结果相比绝对差值小于1.5MPa,相对差值在10%以内,表明在不关井条件下该方法计算气井地层压力是可靠的。Shaximiao Xinchang gas reservoir of Sichuan belongs to low permeability tight gas reservoir,the traditional methods have many limitations,therefore proposed by using production data analysis technology calculation.First,combined with the gas water feature selection Hagedorn-Brown BHFP calculation model;using TOPAZE production analysis software as the platform,using the production data analysis method to calculate formation pressure;finally compared with the result and the pressure recovery test results,we can find they have good linear correlation,then get the correction formula.Using the above method and the correction formula,we calculate part of Xinchang Shaximiao wells formation pressure,the absolute difference is less than 1.5MPa compared with the measured results,the relative difference is less than 10%,it show that the method to calculate formation pressure of gas well on non-shut conditions is reliable.

关 键 词：地层压力 生产数据分析技术 H-B模型 校正公式 

分 类 号：TE37[石油与天然气工程—油气田开发工程]