Numerical Well Test for Well with Finite Conductivity Vertical Fracture in Coalbed

摘要：

A new model is developed for the hydraulic fractured well in coalbed, by considering the following aspects: methane desorption phenomena, finite conductivity vertical fracture, and asymmetry of the fracture about the well. A new parameter is introduced to describe the storage of the fracture, which is named combined fracture storage. Another new concept called fracture asymmetry coefficient is used to define the asymmetry of the fracture about the well. FEM is used to solve the new mathematic model. Both well test type curve and seepage field are got and analyzed. The effects of combined fracture storage, desorption factor, the fracture conductivity, fracture asymmetry coefficient, etc. on type curve are all discussed in detail in this paper.

关键词： coalbed fractured well numerical method FEM finite conductivity

作者: Y. W. Liu W. P. Ouyang P. H. Zhao Q. Lu H. J. Fang

作者单位: Key Laboratory of Environment Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijin Coalbed Methane Ltd. Company, Petrochina, Beijing 100028, China Well Test Department of Geermu Oil Factor of Qinghai Oil Field, Qinghai 816000, China

会议类型: 国际会议

会议名称: 第六届流体力学国际会议

会议地点: 广州

会议语种:英文

页码: 598-601

在线出版日期: 2011-06-30（万方平台首次上网日期，不代表论文的发表时间）