SK高陡构造地层地应力的测井解释及应用研究  

LOGGING INTERPRETATION OF THE CRUSTAL STRESS IN SK HIGH STEEP STRUCTURE FORMATION AND ITS APPLICATION

作　　者：王成龙[1] 夏宏泉[1] 刘国良[1] 

机构地区：[1]西南石油大学石油工程测井实验室

出　　处：《国外测井技术》2013年第6期35-38,49,共5页World Well Logging Technology

摘　　要：SK地区由于受古构造运动的影响,尤其是受喜山和燕山构造运动的影响,其地质构造复杂,地层高陡、地层异常高压、地应力强,储层表现为低孔低渗高压、天然裂缝发育。已有资料表明,地应力大小和方向与储层有效性关系密切,本文利用常规测井和声电成像测井资料,基于岩石力学实验和Kaiser地应力实验,结合压裂、地层测试等数据,建立适合于SK地区高陡构造地层的地应力计算模型,并提取储层有效性评价的地应力指标,分析其与裂缝发育程度的关系,为工区从地应力角度评价低孔低渗裂缝性砂岩储层有效性提供了重要的判据。SK region due to the influence of ancient tectonic movement,especially the Yanshan and Himalayan tectonic movement,has complex geological structure with high steep strata,abnormal high pressure,strong ground stress where reservoirs are characterized by high pressure,low porosity and permeability,natural developed fractures.Existing data show that the ground stress size and direction is close to the reservoir validity.Using conventional well logging and electric imaging logging data,based on the experiments of rock mechanics and Kaiser crustal stress experiment,combined with the fracturing,formation testing data,the crustal stress calculation model is established for the high steep structure strata in SK region,and the crustal stress indices are extracted for effectiveness evaluation of reservoirs,which is used to analyze the relationship between it and the degree of fracture development.It provides important criteria for fractured low porosity and permeability sandstone reservoir evaluation from crustal stress in the work area.

关 键 词：高陡构造 地应力 测井解释 储层有效性 

分 类 号：P542.2[天文地球—构造地质学]