低渗气藏水平井压裂裂缝参数优化

针对低渗气藏水平井压裂产能预测和裂缝参数优化存在的主要问题，采用数值模拟的方法，从气体在低渗气藏中的渗流机理研究入手，同时考虑了气体非达西渗流对产量的影响，建立了低渗气藏水平井压裂产量预测的非达西渗流模型，利用该模型编制了低渗气藏水平井压裂产量预测及裂缝参数优化软件，并对现场实例进行了模拟优化计算，研究了裂缝条数、裂缝导流能力和裂缝长度等参数对水平井压裂产量的影响，并通过结果分析对这些参数进行了优化，得到了影响水平井产能的主要裂缝参数等。

FRACTURE PARAMETER OPTIMIZATION OF HORIZONTAL WELL FRACTURING IN LOW PERMEABILITY GAS RESERVOIR

In light of the main problems existing in the productivity forecast and fracture parameter optimization of horizontal well fracturing in low permeability gas reservoir and by use of numerical simulation method, a non-Darcy flow model of the productivity forecast of horizontal well fracturing in low permeability reservoir was set up in consideration of the gas percolation mechanism in low permeability reservoir and of the influence of gas non-Darcy flow on productivity. By means of the simulation calculation of an example by applying the optimal software drawn up for the model, the effects of these parameters, such as number of fractures, fracture length and fracture conductivity, etc., on horizontal well fracturing productivity were investigated, thus optimizing the main fracture parameters affecting productivity through analyzing the results investigated.