低渗透砂岩油气藏裂缝综合预测
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摘要
低渗透砂岩储层中裂缝既是储油空间,又是油气运移的主要通道,对储层裂缝的描述和预测是其开发地质研究的重要内容。单一研究方法不能满足精细预测的需要,迫切需要将各种方法综合运用,以达到指导勘探开发的目的。以东濮凹陷户部寨气田为例,综合运用岩心描述、镜下观察、测井综合指数分析、地震属性分析、应力应变分析、裂缝开启性分析等方法,对沙四段低渗透致密储层裂缝的分布规律及开启性做出预测。
The fracture of low permeability sandstone reservoir is the storage space of petroleum and the main passage of its transportation.The description and prediction of reservoir fracture is a very important research for exploration and development.The recent single method of fracture prediction almost has some limitation to a certain extent because of the strong heterogeneity and low permeability of this reservoir.So methods of geology,well logging,seismic and tectonic stress field should be used synthetically to access to elaborate prediction.Taking Hubuzhai gas field of Dongpu Depression as an example,this paper uses core description,microscope observation,synthetical index of well logging,seismic attribute,stress-strain and fracture unsealing analysis to predict fracture distribution and unsealing extent.
The fracture of low permeability sandstone reservoir is the storage space of petroleum and the main passage of its transportation.The description and prediction of reservoir fracture is a very important research for exploration and development.The recent single method of fracture prediction almost has some limitation to a certain extent because of the strong heterogeneity and low permeability of this reservoir.So methods of geology,well logging,seismic and tectonic stress field should be used synthetically to access to elaborate prediction.Taking Hubuzhai gas field of Dongpu Depression as an example,this paper uses core description,microscope observation,synthetical index of well logging,seismic attribute,stress-strain and fracture unsealing analysis to predict fracture distribution and unsealing extent.
引文
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[6]戴俊生,汪必峰.综合方法识别和预测储层裂缝[J].油气地质与采收率,2003,10(1):1-3.
[7]刘魁元,孙喜新,李琦,等.沾化凹陷泥质岩储层中裂缝类型及其成因研究[J].石油大学学报(自然科学版),2004,28(4):12-15.
[8]杨依超,郭丽,时爱红,等.东濮凹陷户部寨地区致密砂岩储层裂缝发育规律[J].天然气工业,1999,19(6):88-89.
[9]王秀玲,孟宪军,季玉新,等.潜山裂缝储层地震多信息综合预测方法及应用实例[J].石油地球物理勘探,2002,37(增刊):196-201.
[10]邹新宁,孙卫,张盟勃,等.地震属性分析在岩性油气藏描述中的应用[J].吉林大学学报(地球科学版),2006,36(2):289-294.
[11]吴时国,王秀玲,季玉新,等.3D Move构造裂缝预测技术在古潜山的应用研究[J].中国科学D辑.2004,34(9):818-824.
[2]纳尔逊.天然裂缝性储层地质分析[M].柳广第,译.北京:石油工业出版社,1988.145-153.
[3]李庆昌.裂缝性低渗透储层的开发地质问题[J].石油勘探与开发,1988,15(5):46-52.
[4]李德同,文世鹏.储层构造裂缝的定量描述和预测方法[J].石油大学学报(自然科学版),1996,20(4):6-10.
[5]王越之,田红.常规测井与FMI测井资料相结合研究储层裂缝[J].断块油气田,2001,8(5):30-32.
[6]戴俊生,汪必峰.综合方法识别和预测储层裂缝[J].油气地质与采收率,2003,10(1):1-3.
[7]刘魁元,孙喜新,李琦,等.沾化凹陷泥质岩储层中裂缝类型及其成因研究[J].石油大学学报(自然科学版),2004,28(4):12-15.
[8]杨依超,郭丽,时爱红,等.东濮凹陷户部寨地区致密砂岩储层裂缝发育规律[J].天然气工业,1999,19(6):88-89.
[9]王秀玲,孟宪军,季玉新,等.潜山裂缝储层地震多信息综合预测方法及应用实例[J].石油地球物理勘探,2002,37(增刊):196-201.
[10]邹新宁,孙卫,张盟勃,等.地震属性分析在岩性油气藏描述中的应用[J].吉林大学学报(地球科学版),2006,36(2):289-294.
[11]吴时国,王秀玲,季玉新,等.3D Move构造裂缝预测技术在古潜山的应用研究[J].中国科学D辑.2004,34(9):818-824.
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