【摘要】 利用试井分析人工压裂井油层参数时,压力导数中后期出现上翘时可能是由于边界、裂缝等因素的影响,准确区分边界、裂缝或其他因素一直是试井解释中的一个难题。有限导流双线性流动垂直裂缝模型的研究为解决这一问题提供了一种简便可行的方法,可解释裂缝长度、裂缝导流能力、裂缝表皮系数、地层渗透率、井筒存储性能等参数,并计算了理论图版、确定了裂缝半长辅助线,完成了油气井试井资料解释软件的开发。更多还原

【Abstract】 In well test analysis of reservoir parameters in artificial fracture well, the differential of pressure curve rises up in the mid-late period, this may be caused by boundary and fracture factors. It has been a problem for a long time to distinguish boundary and fracture factors or other factors in well test interpretation. The study of bilinear flow model for finite conductivity vertical fractures has provided a feasible way of solving this problem. Parameters such as fracture length, fracture flow conductivity, fracture skin, formation permeability, wellbore storage capacity can be interpreted. This paper also calculates the theoretical chart, determines fracture half-length auxiliary line, and completes development of interpretation software for oil and gas well testing data.更多还原