中拐凸起黏土化蚀变火山岩孔隙度评价方法
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摘要
火山岩物性评价中,黏土化蚀变火山岩孔隙度的定量计算一直是测井解释难题。通过对研究区25口井的测录井资料、薄片分析、全岩矿物等进行分析,优选出对黏土化蚀变反映较为敏感的测井曲线。在测井系列分析的基础上,优化黏土化蚀变指示因子,建立了研究区黏土蚀变程度指数模型,利用黏土蚀变程度指数对黏土化蚀变火山岩的黏土含量进行定量计算,利用体积模型对黏土化蚀变的火山岩孔隙度进行计算。计算结果与分析孔隙度进行对比,精度得到大大提高。该方法较好地解决了黏土化蚀变火山岩孔隙度定量评价问题,对火山岩储层试油选层、油气藏精细评价及后期勘探开发提供了一定的理论参考依据。
The quantitative calculation of clay-altered volcanic rock porosity has always been a difficult problem in log interpretation. By analyzing the log data, thin section analysis and whole rock analysis of 25 wells in the study area, the logging curves which were sensitive to the reflection of clay alteration were optimized. Based on the analysis of logging series, the indicative factor of clay alteration was optimized, the index model of clay alteration degree in the study area was established, the clay content of clay altered volcanic rock by using the index of clay alteration degree was quantitatively calculated, and the porosity of volcanic rock with clay alteration by using volume model was calculated in this paper. By comparing the porosity of core analysis, the accuracy of porosity calculation was greatly improved. This method solved the problem of quantitative evaluation of porosity for clay altered volcanic rock and provided some theoretical reference for the selection of test, the fine evaluation of oil and gas reservoir and the exploration and development of the later stage of volcanic reservoir.
The quantitative calculation of clay-altered volcanic rock porosity has always been a difficult problem in log interpretation. By analyzing the log data, thin section analysis and whole rock analysis of 25 wells in the study area, the logging curves which were sensitive to the reflection of clay alteration were optimized. Based on the analysis of logging series, the indicative factor of clay alteration was optimized, the index model of clay alteration degree in the study area was established, the clay content of clay altered volcanic rock by using the index of clay alteration degree was quantitatively calculated, and the porosity of volcanic rock with clay alteration by using volume model was calculated in this paper. By comparing the porosity of core analysis, the accuracy of porosity calculation was greatly improved. This method solved the problem of quantitative evaluation of porosity for clay altered volcanic rock and provided some theoretical reference for the selection of test, the fine evaluation of oil and gas reservoir and the exploration and development of the later stage of volcanic reservoir.
引文
[1] 申波,毛志强,樊海涛,等.基于主成分分析技术计算蚀变地层孔隙度的新方法 [J].测井技术,2012,36(2):130-132.
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[5] 孙茹雪.蚀变中基性火山岩储层ABC-CM最优化测井解释方法研究 [D].长春:吉林大学,2017.
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[7] 魏翔宇,高有峰,魏琴,等.蚀变对中基性火山岩储层的控制作用:以松辽盆地徐家围子断陷下白垩系营城组为例 [J].世界地质,2017,36(2):541-551.
[8] 朱世发,朱筱敏,刘学超,等.油气储层火山物质蚀变产物及其对储集空间的影响-以准噶尔盆地克-夏地区下二叠统为例 [J].石油学报,2014,35(2):276-285.
[9] 张丽华,潘保芝,单刚义.蚀变火成岩储层导电机理及饱和度方程 [J].吉林大学学报(地球科学版),2012,42(2):429-435.
[10] 王鹏,莫修文,王英武,等.火山碎屑岩储层泥质含量的计算 [J].吉林大学学报(地球科学版),2008,38(增刊):133-136.
[11] 朱学娟,张向明,范宜仁,等.蚀变玄武岩储层的有效性分析及储集性能评价 [J].物探与化探,2013,37(3):400-405.
[12] 史謌,杨东全.岩石波速和孔隙度、泥质含量之间的关系研究 [J].北京大学学报(自然科学版),2001,37(3):379-384.
[13] 王建功,吴刚,陈燕,等.一种复杂砂岩储层泥质含量评价方法 [J].石油钻采工艺,2009,31(2):48-50.
[14] 汪爱云,刘江,张军龙.储集层泥质含量普适性算法探讨 [J].测井技术,2000,24(增刊):502-504.
*非法定计量单位,1 ft=12 in=0.304 8 m,下同
[2] 王春燕,张雷,金雪英.蚀变火山岩储层特征及气水层识别方法 [J].大庆石油学院学报,2013,37(3):18-23.
[3] 杨雪.蚀变火山岩储层饱和度模型及测井解释方法研究 [D].长春:吉林大学,2016.
[4] 杨晓辉.利用常规测井资料计算火成岩黏土束缚水孔隙度 [D].长春:吉林大学,2016.
[5] 孙茹雪.蚀变中基性火山岩储层ABC-CM最优化测井解释方法研究 [D].长春:吉林大学,2017.
[6] 王敏,王永诗,田淼,等.火成岩蚀变层段的有效储层识别及孔隙度定量表征 [J].油气地质与采收率,2018,25(4):22-27.
[7] 魏翔宇,高有峰,魏琴,等.蚀变对中基性火山岩储层的控制作用:以松辽盆地徐家围子断陷下白垩系营城组为例 [J].世界地质,2017,36(2):541-551.
[8] 朱世发,朱筱敏,刘学超,等.油气储层火山物质蚀变产物及其对储集空间的影响-以准噶尔盆地克-夏地区下二叠统为例 [J].石油学报,2014,35(2):276-285.
[9] 张丽华,潘保芝,单刚义.蚀变火成岩储层导电机理及饱和度方程 [J].吉林大学学报(地球科学版),2012,42(2):429-435.
[10] 王鹏,莫修文,王英武,等.火山碎屑岩储层泥质含量的计算 [J].吉林大学学报(地球科学版),2008,38(增刊):133-136.
[11] 朱学娟,张向明,范宜仁,等.蚀变玄武岩储层的有效性分析及储集性能评价 [J].物探与化探,2013,37(3):400-405.
[12] 史謌,杨东全.岩石波速和孔隙度、泥质含量之间的关系研究 [J].北京大学学报(自然科学版),2001,37(3):379-384.
[13] 王建功,吴刚,陈燕,等.一种复杂砂岩储层泥质含量评价方法 [J].石油钻采工艺,2009,31(2):48-50.
[14] 汪爱云,刘江,张军龙.储集层泥质含量普适性算法探讨 [J].测井技术,2000,24(增刊):502-504.
*非法定计量单位,1 ft=12 in=0.304 8 m,下同
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