摘要
常规的储层损害评价方法对实验设备要求高、误差大。为了快速、准确、有效地评价储层的敏感性,建立了压力衰减法来评价储层流体的敏感性。介绍了压力衰减法的方法原理和评价方法,并结合实验说明压力半衰期和岩心的渗透率具有线性关系,在此基础上利用压力衰减法对川西工区储层的流体敏感性进行了评价。结果表明,应用压力衰减法克服了现有评价方法的缺点,可快速评价致密储层流体敏感性的损害。
For protecting the tight gas reservoirs,it is need to evaluate the reservoir damage mechanism accurately,but the conventional evaluating method is not convenient.To deal with this problem,the pressure attenuation method is developed to evaluate reservoir sensitivity.In this paper,the principle of the evaluating method is introduced,it is found that the experimental pressure half-life and core permeability have a linear relationship.The reservoir fluid sensitivity of Western Sichuan area is evaluated,and the results show that the application of pressure attenuation method in evaluation of reservoir damage is successful that is fast and accurately.
出处
《钻井液与完井液》
CAS
北大核心
2013年第3期41-42,46,共3页
Drilling Fluid & Completion Fluid
基金
国家科技重大专项"低渗油气田储层保护技术研究"之专题"高压低渗气层水平井钻井保护技术"(2011ZX05022-004-002)资助
关键词
压力衰减法
储层
流体敏感性
渗透率
Pressure attenuation method
Reservoir
Fluid sensitivity
Permeability
