异常高压低渗复杂油藏稳定测试资料分析方法  

Analysis Method of Steady Well Test in Abnormal High Pressure and Low Permeability Reservoirs

作　　者：李国明 张显文 方洋 邓国振[2] 

机构地区：[1]中油测井公司测试事业部,北京100101 [2]华北油田油气井测试公司,河北廊坊065007

出　　处：《油气井测试》2009年第4期37-39,共3页Well Testing

摘　　要：渗流规律和开发实践表明,异常高压低渗复杂油藏地层存在变渗透率的问题。对异常高压低渗透碳酸盐储层渗透率伤害和压敏变化规律等进行研究,建立了考虑储层应力变化的稳定测试资料分析模型和方法,对储层渗透率随油藏压力变化模型进行了评价。结合实例,分析了异常高压低渗复杂油藏稳定测试资料。结果发现,应用实验数据对应力变化进行评价,然后分段研究稳定测试资料可以获取较高的解释精度,特别是压差较大的测试点。该研究为异常高压低渗复杂油藏开发方案制定和采油工艺设计提供了依据。It has long been recognized that permeability changes during production in abnormal high pressure reservoir,but the reservoir strata themselves were considered to be static systems.Study of permeability damage and changing pressure-sensitiveness in abnormal high pressure and low permeability carbonate reservoirs leads to establish the model and method of steady well test interpretation which take stress change of the reservoir into account,and to evaluate the model of reservoir whose permeability changes with reservoir pressure.Analysis result of steady well test in a real well shows that evaluating stress change by experiment data first,and then study the steady well test data segment by segment,can give more accurate interpretation result,especially for the measurement points with large pressure differences.The study lays a foundation for development program making and production technical design.

关 键 词：应力敏感 产能方程 异常高压 测试 低渗 

分 类 号：TE353[石油与天然气工程—油气田开发工程] P618.130.2[天文地球—矿床学]