高能气体压裂过程中压井液运动计算模型研究  

Modeling of Controlling Fluid Movement during High-energy Gas Fracturing

作　　者：赵旭[1] ZHAO Xu(Sinopec Research Institute of Petroleum Engineering,Beijing,100101)

机构地区：[1]中国石化石油工程技术研究院,北京100101

出　　处：《爆破器材》2020年第2期29-33,共5页Explosive Materials

基　　金：国家科技重大专项课题,海相碳酸盐岩超深油气井关键工程技术(2017ZX05005-005);中石化科技部推广项目,自适应调流控水完井技术推广与工业化应用(P16117)。

摘　　要：针对压井液运动对高能气体压裂作用效果影响较大、现有技术对压井液运动过程研究不足的问题,开展了高能气体压裂过程中压井液运动特性及作用效果研究。按照压井液在高能气体压裂作用过程中的运动过程,分别建立了压井液运动流体压缩阶段、刚体运动阶段及压井液运动能量损耗计算模型;在此基础上,通过计算实例对高能气体压裂过程中的压井液运动及作用效果进行了进一步的分析。结果表明,所建立的描述高能气体压裂过程中压裂火药燃烧时间内的压井液运动计算模型具有较好的合理性和适用性,可以应用到现有的复合射孔高能气体压裂理论计算模型体系中。Characterization on the movement of controlling fluid and its influence on the effectiveness of high-energy gas fracturing(HEGF) were studied. Based on the movement features of control fluid displayed during the gas-liquid interaction in HEGF, calculation models were stablished for fluid compression stage, rigid motion stage, and energy loss of control liquid motion, respectively. The movement and effect control fluid in the process of HEGF were further analyzed through calculation examples. Results show that the established model describing the control fluid movement during the combustion time of fracturing propellant in HEGF has good rationality, stability and applicability, and can be applied to the existing theoretical calculation model system of HEGF with composite perforation.

关 键 词：高能气体压裂 压井液 理论分析 计算模型 计算实例 

分 类 号：TE257.1[石油与天然气工程—油气井工程]