四川盆地磨溪构造嘉二段孔隙型碳酸盐岩储层的评价
|
摘要
嘉二2B层的粉晶云岩储层和嘉二1亚段的泥晶—泥粉晶云岩储层是川中磨溪构造嘉二段气藏的主力产层,物性较好,且平面上分布稳定,但测试成果显示,其产能相差甚远。对储层岩石的镜下特征、毛细管压力特征以及孔隙度与渗透率关系等方面进行的分析表明,这两套储层的微观孔喉结构差异较大,嘉二1亚段储层尽管孔隙度较高,但由于喉道细,连通性差,流体在其中的渗流能力因此明显下降。笔者采用主成分分析法,从原始变量的相关矩阵出发,通过研究其内部结构,找出起主导作用的新变量,针对不同孔喉结构的储层分别建立不同的分类评价标准,从而更客观地反映储层对流体产出的贡献值。
The crystal powder dolomite reservoir of Layer Jia22B and micrite-crystal powder dolomite reservoir of Sub-member Jia21 are the principal fluid producing formation in Moxi Structure of the Central Sichuan Basin and have the favorable physical property and stable distribution in plane.The tested results show that the two reservoirs have the obviously different productivity.The detailed analysis on endoscopic features,capillary pressure features and porosity-permeability relations of reservoir rocks indicated that the microscopic pore-throat structures were greatly different in the two reservoirs.Although the Sub-member Jia21 has the favorable porosity,the fluid permeability is still not ideal because of its thin throat and poor connectivity.By adopting the principle component analysis method and the matrix of original variables,the inner structures of the reservoirs were investigated to locate the new leading variables.Various classification and evaluation standards for reservoirs with different pore-throat structure were established and used to objectively describe the contribution of reservoir to fluid deliverability.
The crystal powder dolomite reservoir of Layer Jia22B and micrite-crystal powder dolomite reservoir of Sub-member Jia21 are the principal fluid producing formation in Moxi Structure of the Central Sichuan Basin and have the favorable physical property and stable distribution in plane.The tested results show that the two reservoirs have the obviously different productivity.The detailed analysis on endoscopic features,capillary pressure features and porosity-permeability relations of reservoir rocks indicated that the microscopic pore-throat structures were greatly different in the two reservoirs.Although the Sub-member Jia21 has the favorable porosity,the fluid permeability is still not ideal because of its thin throat and poor connectivity.By adopting the principle component analysis method and the matrix of original variables,the inner structures of the reservoirs were investigated to locate the new leading variables.Various classification and evaluation standards for reservoirs with different pore-throat structure were established and used to objectively describe the contribution of reservoir to fluid deliverability.
引文
[1]陈丽华,王家华,李应进,等.油气储层研究技术[M].北京:石油工业出版社,2000:51-60.Chen Lihua,Wang Jiahua,Li Yingjin,et al.Oil-gas reservoir re-search technology[M].Beijing:Petroleum Industry Press,2000:51-60.
[2]裘怿楠,薛叔浩.油气储层评价技术[M].北京:石油工业出版社,1997:20-43.Qiu Yinan,Xue Shuhao.Oil-gas reservoir evaluation technology[M].Beijing:Petroleum Industry Press,1997:20-43.
[3]Loucks R G.Paleocave carbonate reservoirs:Origins,burial-depthmodifications,spatial complexity,and reservoir implications[J].AAPG Bulletin,1999,83(11):1795-1834.
[4]杨正明,姜汉桥,朱光亚,等.低渗透含水气藏储层评价参数研究[J].石油学报,2008,29(2):252-255.Yang Zhengming,Jiang Hanqiao,Zhu Guangya,et al.Researchon reservoir evaluation index for low-permeability water-bearinggas reservoir[J].Acta Petrolei Sinica,2008,29(2):252-255.
[5]罗平,裘怿楠,贾爱林,等.中国油气储层地质研究面临的挑战和发展方向[J].沉积学报,2003,21(1):142-147.Luo Ping,Qiu Yinan,Jia Ailin,et al.The present challenges ofChinese petroleum reservoir geology and research direction[J].Acta Sedimentologica Sinica,2003,21(1):142-147.
[6]孙洪志,刘吉余.储层综合定量评价方法研究[J].大庆石油地质与开发,2004,23(6):8-10.Sun Hongzhi,Liu Jiyu.Research on comprehensive and quantita-tive reservoir evaluation[J].Petroleum Geology&Oilfield De-velopment in Daqing,2004,23(6):8-10.
[7]杨正明,张英芝,郝明强,等.低渗透油田储层综合评价方法[J].石油学报,2006,27(2):64-67.Yang Zhengming,Zhang Yingzhi,Hao Mingqiang,et al.Compre-hensive evaluation of reservoir in low-permeability oilfields[J].Acta Petrolei Sinica,2006,27(2):64-67.
[8]罗蛰潭,王允诚.油气储集层的孔隙结构[M].北京:科学出版社,1986:5-20.Luo Zhetan,Wang Yuncheng.Pore texture of oil-gas reservoir[M].Beijing:Science Press,1986:5-20.
[9]杨威,王清华,赵仁德,等.碳酸盐岩成岩作用及其对储层控制的定量评价———以和田河气田石炭系生物屑灰岩段为例[J].地球学报,2001,22(5):441-446.Yang Wei,Wang Qinghua,Zhao Rende,et al,Carbonate diagene-sis and quantitative evaluation of its control over the reservoir:Examplified by carboniferous bioclastic limestone member in He-tian River Gas Field,Tarim Basin[J].Acta Geosicientia Sinica,2001,22(5):441-446.
[10]王志杰,温长云,冉雪梅.运用灰色聚类方法确定储层非均质分布[J].成都理工大学学报:自然科学版,2006,33(3):271-275.Wang Zhijie,Wen Changyun,Ran Xuemei.Determination of thedistribution of heterogeneity of a reservoir by using the cluste-ring-theory in grey system[J].Journal of Chengdu University ofTechnology:Science&Technology Edition,2006,33(3):271-275.
[11]马立文,窦齐丰,彭仕宓,等.利用Q型聚类分析与判别函数法进行储层评价———以冀东老爷庙油田庙28X1区块东一段为例[J].西北大学学报:自然科学版,2003,33(1):83-86.Ma Liwen,Dou Qifeng,Peng Shimi,et al.Comprehensively ap-plying Q-model gathering and discriminant function methods toreservoir classification and evaluation:Taking Ed1of Miao28X1Block in Laoyemiao Oilfield in Jidong as an Example[J].Journalof Northwest University:Natural Science Edition,2003,33(1):83-86.
[12]李中锋,何顺利.模糊数学在长庆气田碳酸盐岩储层评价中的应用[J].天然气工业,2005,25(3):55-57.Li Zhongfeng,He Shunli.Application of fuzzy mathematics to e-valuating the carbonate reservoirs in Changqing Gas Field[J].Natural Gas Industry,2005,25(3):55-57.
[13]欧成华,陈景山.砂体分类评价的模糊综合评判[J].西南石油学院学报,1998,20(3):7-10.Ou Chenghua,Chen Jingshan.Application of fuzzy comprehen-sive judge technique to sandbody classification[J].Journal ofSouthwest Petroleum Institute,1998,20(3):7-10.
[14]彭仕宓,熊琦华,王才经,等.储层综合评价的主成分分析方法[J].石油学报,1994,15(增刊):187-192.Peng Shimi,Xiong Qihua,Wang Caijing,et al.A method of prin-cipal component analysis in comprehensive reservoir evaluation[J].Acta Petrolei Sinica,1994,15(Supplement):187-192.
[15]徐凤银,朱兴珊,颜其彬,等.储层定量评价中指标权重的计算途径[J].石油学报,1996,17(2):29-34.Xu Fengyin,Zhu Xingshan,Yan Qibin,et al.An approach to de-fine weight of indexes in the quantitative evaluation of reservoirs[J].Acta Petrolei Sinica,1996,17(2):29-34.
[16]强子同.碳酸盐岩储层地质学[M].东营:石油大学出版社,1998.Qiang Zitong.Carbonate rock reservoir geology[M].Dongying:Press of the University of Petroleum,China,1998.
[17]黄述旺,蔡毅,魏萍,等.储层微观孔隙结构特征空间展布研究方法[J].石油学报,1994,15(增刊):76-81.Huang Shuwang,Cai Yi,Wei Ping,et al.An approach to studythe spatial distribution of properties of reservoir’s microporestructure[J].Acta Petrolei Sinica,1994,15(Supplement):76-81.
[18]谭秀成,邹娟,李凌,等.磨溪气田嘉二段陆表海型台地内沉积微相研究[J].石油学报,2008,29(2):219-225.Tan Xiucheng,Zou Juan,Li Ling,et al.Research on sedimentarymicrofacies of the epicontinental sea platform of Jia2Member inMoxi Gas Field[J].Acta Petrolei Sinica,2008,29(2):219-225.
[19]赵旭东.数学地质[M].北京:石油工业出版社,1989.Zhao Xudong.Mathematics geology[M].Beijing:Petroleum In-dustry Press,1989.
[20]杨晓萍,赵文智,邹才能,等.低渗透储层成因机理及优质储层形成与分布[J].石油学报,2007,28(4):57-61.Yang Xiaoping,Zhao Wenzhi,Zou Caineng,et al.Origin of low-permeability reservoir and distribution of favorable reservoir[J].Acta Petrolei Sinica,2007,28(4):57-61.
[21]彭军,田景春,赖生华.陕甘宁盆地中部马家沟组白云岩成因及储集性[J].成都理工学院学报:自然科学版,1998,25(1):87-93.Peng Jun,Tian Jingchun,Lai Shenghua.The origin and reservoi-ring performance of dolostones of Majiagou Formation in themiddle part of the Gas Field of Shaan-gan-ning Basin[J].Journalof Chengdu University of Technology:Science&Technology E-dition,1998,25(1):87-93.
①赵异华,张孝兰,罗玉宏,等.磨溪气田嘉二气藏储量计算报告.西南油气田分公司川中油气矿,2005.
①中石油西南油气田分公司川中油气矿.上半年开发简报,2007.
[2]裘怿楠,薛叔浩.油气储层评价技术[M].北京:石油工业出版社,1997:20-43.Qiu Yinan,Xue Shuhao.Oil-gas reservoir evaluation technology[M].Beijing:Petroleum Industry Press,1997:20-43.
[3]Loucks R G.Paleocave carbonate reservoirs:Origins,burial-depthmodifications,spatial complexity,and reservoir implications[J].AAPG Bulletin,1999,83(11):1795-1834.
[4]杨正明,姜汉桥,朱光亚,等.低渗透含水气藏储层评价参数研究[J].石油学报,2008,29(2):252-255.Yang Zhengming,Jiang Hanqiao,Zhu Guangya,et al.Researchon reservoir evaluation index for low-permeability water-bearinggas reservoir[J].Acta Petrolei Sinica,2008,29(2):252-255.
[5]罗平,裘怿楠,贾爱林,等.中国油气储层地质研究面临的挑战和发展方向[J].沉积学报,2003,21(1):142-147.Luo Ping,Qiu Yinan,Jia Ailin,et al.The present challenges ofChinese petroleum reservoir geology and research direction[J].Acta Sedimentologica Sinica,2003,21(1):142-147.
[6]孙洪志,刘吉余.储层综合定量评价方法研究[J].大庆石油地质与开发,2004,23(6):8-10.Sun Hongzhi,Liu Jiyu.Research on comprehensive and quantita-tive reservoir evaluation[J].Petroleum Geology&Oilfield De-velopment in Daqing,2004,23(6):8-10.
[7]杨正明,张英芝,郝明强,等.低渗透油田储层综合评价方法[J].石油学报,2006,27(2):64-67.Yang Zhengming,Zhang Yingzhi,Hao Mingqiang,et al.Compre-hensive evaluation of reservoir in low-permeability oilfields[J].Acta Petrolei Sinica,2006,27(2):64-67.
[8]罗蛰潭,王允诚.油气储集层的孔隙结构[M].北京:科学出版社,1986:5-20.Luo Zhetan,Wang Yuncheng.Pore texture of oil-gas reservoir[M].Beijing:Science Press,1986:5-20.
[9]杨威,王清华,赵仁德,等.碳酸盐岩成岩作用及其对储层控制的定量评价———以和田河气田石炭系生物屑灰岩段为例[J].地球学报,2001,22(5):441-446.Yang Wei,Wang Qinghua,Zhao Rende,et al,Carbonate diagene-sis and quantitative evaluation of its control over the reservoir:Examplified by carboniferous bioclastic limestone member in He-tian River Gas Field,Tarim Basin[J].Acta Geosicientia Sinica,2001,22(5):441-446.
[10]王志杰,温长云,冉雪梅.运用灰色聚类方法确定储层非均质分布[J].成都理工大学学报:自然科学版,2006,33(3):271-275.Wang Zhijie,Wen Changyun,Ran Xuemei.Determination of thedistribution of heterogeneity of a reservoir by using the cluste-ring-theory in grey system[J].Journal of Chengdu University ofTechnology:Science&Technology Edition,2006,33(3):271-275.
[11]马立文,窦齐丰,彭仕宓,等.利用Q型聚类分析与判别函数法进行储层评价———以冀东老爷庙油田庙28X1区块东一段为例[J].西北大学学报:自然科学版,2003,33(1):83-86.Ma Liwen,Dou Qifeng,Peng Shimi,et al.Comprehensively ap-plying Q-model gathering and discriminant function methods toreservoir classification and evaluation:Taking Ed1of Miao28X1Block in Laoyemiao Oilfield in Jidong as an Example[J].Journalof Northwest University:Natural Science Edition,2003,33(1):83-86.
[12]李中锋,何顺利.模糊数学在长庆气田碳酸盐岩储层评价中的应用[J].天然气工业,2005,25(3):55-57.Li Zhongfeng,He Shunli.Application of fuzzy mathematics to e-valuating the carbonate reservoirs in Changqing Gas Field[J].Natural Gas Industry,2005,25(3):55-57.
[13]欧成华,陈景山.砂体分类评价的模糊综合评判[J].西南石油学院学报,1998,20(3):7-10.Ou Chenghua,Chen Jingshan.Application of fuzzy comprehen-sive judge technique to sandbody classification[J].Journal ofSouthwest Petroleum Institute,1998,20(3):7-10.
[14]彭仕宓,熊琦华,王才经,等.储层综合评价的主成分分析方法[J].石油学报,1994,15(增刊):187-192.Peng Shimi,Xiong Qihua,Wang Caijing,et al.A method of prin-cipal component analysis in comprehensive reservoir evaluation[J].Acta Petrolei Sinica,1994,15(Supplement):187-192.
[15]徐凤银,朱兴珊,颜其彬,等.储层定量评价中指标权重的计算途径[J].石油学报,1996,17(2):29-34.Xu Fengyin,Zhu Xingshan,Yan Qibin,et al.An approach to de-fine weight of indexes in the quantitative evaluation of reservoirs[J].Acta Petrolei Sinica,1996,17(2):29-34.
[16]强子同.碳酸盐岩储层地质学[M].东营:石油大学出版社,1998.Qiang Zitong.Carbonate rock reservoir geology[M].Dongying:Press of the University of Petroleum,China,1998.
[17]黄述旺,蔡毅,魏萍,等.储层微观孔隙结构特征空间展布研究方法[J].石油学报,1994,15(增刊):76-81.Huang Shuwang,Cai Yi,Wei Ping,et al.An approach to studythe spatial distribution of properties of reservoir’s microporestructure[J].Acta Petrolei Sinica,1994,15(Supplement):76-81.
[18]谭秀成,邹娟,李凌,等.磨溪气田嘉二段陆表海型台地内沉积微相研究[J].石油学报,2008,29(2):219-225.Tan Xiucheng,Zou Juan,Li Ling,et al.Research on sedimentarymicrofacies of the epicontinental sea platform of Jia2Member inMoxi Gas Field[J].Acta Petrolei Sinica,2008,29(2):219-225.
[19]赵旭东.数学地质[M].北京:石油工业出版社,1989.Zhao Xudong.Mathematics geology[M].Beijing:Petroleum In-dustry Press,1989.
[20]杨晓萍,赵文智,邹才能,等.低渗透储层成因机理及优质储层形成与分布[J].石油学报,2007,28(4):57-61.Yang Xiaoping,Zhao Wenzhi,Zou Caineng,et al.Origin of low-permeability reservoir and distribution of favorable reservoir[J].Acta Petrolei Sinica,2007,28(4):57-61.
[21]彭军,田景春,赖生华.陕甘宁盆地中部马家沟组白云岩成因及储集性[J].成都理工学院学报:自然科学版,1998,25(1):87-93.Peng Jun,Tian Jingchun,Lai Shenghua.The origin and reservoi-ring performance of dolostones of Majiagou Formation in themiddle part of the Gas Field of Shaan-gan-ning Basin[J].Journalof Chengdu University of Technology:Science&Technology E-dition,1998,25(1):87-93.
①赵异华,张孝兰,罗玉宏,等.磨溪气田嘉二气藏储量计算报告.西南油气田分公司川中油气矿,2005.
①中石油西南油气田分公司川中油气矿.上半年开发简报,2007.
目录