江苏油田泥灰岩裂缝性储层测井解释方法研究
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摘要
从泥灰岩裂缝性储层的岩石成份、孔隙结构等分析化验数据入手 ,根据岩心孔、洞、缝观察描述和统计分析 ,以岩心刻度测井思路研究了与泥岩、泥灰岩地质特征相匹配的双重孔隙结构模型 ,建立了计算裂缝性储集层物性参数 (总孔隙度、基质孔隙度、孔洞孔隙度、裂缝孔隙度 )的系统方法。研究了储层类型并应用双孔隙度指数法、三孔隙度法、曲线变化率法、电阻率指示法、次生孔隙度法和综合指示法进行泥灰岩裂缝发育程度评价。
Studied are rock components,pore structures,etc. of fractured mudstone and marlaceous reservoirs. According to description and statistical analyses of the pores,vugs and fractures together with core graduation log, dual pore structure model for the above reservoirs has been worked out. Given is a set of calculation methods for fissured reservoir parameters (e.g., total porosity, matrix porosity, vug porosity and fracture porosity). Types of reservoirs in YC depression in Jiangsu Oilfield are analysed. Such methods as dual porosity index, three-porosity ratio, curve changing ratio, resistivity indicating, secondary porosity developing factor and composite probability index are used for evaluation of marlaceous fracture growth.
Studied are rock components,pore structures,etc. of fractured mudstone and marlaceous reservoirs. According to description and statistical analyses of the pores,vugs and fractures together with core graduation log, dual pore structure model for the above reservoirs has been worked out. Given is a set of calculation methods for fissured reservoir parameters (e.g., total porosity, matrix porosity, vug porosity and fracture porosity). Types of reservoirs in YC depression in Jiangsu Oilfield are analysed. Such methods as dual porosity index, three-porosity ratio, curve changing ratio, resistivity indicating, secondary porosity developing factor and composite probability index are used for evaluation of marlaceous fracture growth.
引文
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[6] 孙建孟,等.青海柴西地区常规测井裂缝识别方法[J].测井技术,1999,23(4):206-275.
[2] 王允诚,等.裂缝性致密油气储集层[M ].北京:地质出版社,1992.
[3] 王志章,等.裂缝性油藏描述及预测[M].北京:石油工业出版社,1999.
[4] 黄志龙,等.盖层突破压力及排替压力的求取方法[J].新疆石油地质,1994,15(2):163-166.
[5] 雍世和,等.测井资料综合解释与数字处理[M].北京:石油工业出版社,1982.
[6] 孙建孟,等.青海柴西地区常规测井裂缝识别方法[J].测井技术,1999,23(4):206-275.
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