高温高压气井测试合理工作制度设计理论与方法

Theory and Method of Rational Working System Design During HTHP Testing of Gas Well

分析传统的高温高压气井测试工作制度设计理论的不足 ,对高温高压气井测试期间地层、井筒与地面参数特征进行研究 ;分析高温高压气井测试期间井口油压与井底生产压差的关系 ,认为根据合理生产压差设计测试工作制度 ,既可以有效求取地层参数 ,又可以防止生产压差过大而使地层变形、破坏或出砂。

The deficiency of traditional design theory in working system is analyzed; the parameter characters in formation, well bore and earth surface are studied. And the relation between oil pressure at well head and producing pressure differential at bottom hole is analyzed, too. This paper points out that working system during testing should be determined according to rational producing pressure differential. As a result, the formation parameters can be effectively gained and deformation damage and sand production of formation can be avoided in time of larger producing pressure differential of gas well during HTHP testing. The theory and method of working system design during HTHP testing of gas well are provided in the paper.