天然气地质学

超低渗透储层钙质夹层分布控制因素分析——来自岩石学及成岩作用研究的微观证据

展开
  • 1.中国石油天然气股份有限公司勘探开发研究院,北京 100083;
    2.中国石油大学(北京)地球科学学院,北京 102249;
    3.中国石油天然气股份有限公司长庆油田分公司第五采油厂,陕西 西安 710018
刘丽(1985-),女,辽宁葫芦岛人,博士研究生,主要从事储层地质综合研究. E-mail:liuli11505@163.com.

收稿日期: 2015-07-10

  修回日期: 2015-12-25

  网络出版日期: 2019-09-19

基金资助

中国石油重大科技专项(编号:2011B-1205)资助.

Controlling factors of calcareous interlayers distribution in ultra-low permeability reservoirs:Micro evidence from petrology and diagenesis

Expand
  • 1.PetroChina Research Institute of Petroleum Exploration and Development,Beijing 100083,China;
    2.College of Geosciences,China University of Petroleum,Beijing 102249,China;
    3.The 5th Oil Production Plant,Changqing Oilfield Company,PetroChina, Xi’an 710018,China

Received date: 2015-07-10

  Revised date: 2015-12-25

  Online published: 2019-09-19

摘要

利用岩心、常规测井、铸体薄片、扫描电镜等资料,确定姬塬油田长6段钙质夹层岩电特征和分布规律,依据钙质砂岩和非钙质砂岩之间沉积和成岩的差异性,探讨岩石学特征和成岩演化过程对钙质夹层分布的影响。结果表明:钙质夹层的分布与沉积微相和砂泥岩组合类型密切相关,宏观上受砂泥岩厚度以及砂体的成因类型控制,微观上受碳酸盐胶结物来源和孔隙空间的综合影响。胶结物来源的充足程度与砂岩周围暗色泥岩的厚度以及砂泥岩距离密切相关;孔隙空间的大小受砂体岩石学特征和后期成岩演化的双重控制,刚性颗粒含量高、粒度粗、分选好的砂岩,原生孔隙发育,碳酸盐胶结时期孔隙空间较大,利于钙质夹层的形成;早期压实和绿泥石胶结作用减少孔隙空间,是阻碍碳酸盐沉淀的关键成岩作用。三角洲前缘储层中靠近厚层泥岩、原生粒间孔隙发育且未经历强烈压实和绿泥石胶结作用改造的沉积相带容易发生碳酸盐胶结形成钙质夹层。

本文引用格式

刘丽, 鲍志东, 秦智, 范正平, 林艳波, 邓西里, 安锴胜 . 超低渗透储层钙质夹层分布控制因素分析——来自岩石学及成岩作用研究的微观证据[J]. 天然气地球科学, 2016 , 27(6) : 1035 -1045 . DOI: 10.11764/j.issn.1672-1926.2016.06.1035

Abstract

Using on the analysis of core,conventional logs,thin section,scanning electron microscopy,etc.,the petrologic and geochemical features,log responses and distribution laws of calcareous interlayers of Chang 6 Formation were studied in Jiyuan Oilfield,then based on  the difference between calcareous and non-calcareous,sandstones was identified to discuss how petrology and diagenesis evolution affect their distribution.The results show that the distribution of calcareous interlayers was closely related to sedimentary microfacies and rock assemblages.It is closely related to the thickness of sandstones and mudstones macroscopically,as well as the genetic types of sandbodies.However,it is comprehensively controlled by the source and pore spaces needed for carbonate cementationin microscopic scales.The thickness of sandstone and the distance between mudstones and sandstones determines the adequacy of material sources.The pore spacesare affected both by petrology and diagenetic evolution.Sandstones which have coarse granularity,good sorting,and high rigid particles can preserve the pore space effectively,so it is likely for the carbonate cement to precipitate.In addition,the space is seriously influenced by the diagenetic alteration.Early compaction and chlorite rim cementation may cause the reduction of space,and they are the dominant diagenesis inhibiting the growth of carbonate.For delta front reservoir,the sandstone near thickmudstone,with higher primary intergranular porosity and lower degree of compaction and chlorite cementation,is prone to be cemented by carbonate.

参考文献

[1]Lin Chengyan,Hou Lianhua,Dong Chunmei,et al.Study on calcareous interbeds in turbidite reservoir of Sha-3 member of the western Liaohe Depression[J].Acta Sedimentologica Sinica,1996,14(3):72-81.[林承焰,侯连华,董春梅,等.辽河西部凹陷沙三段浊积岩储层中钙质夹层研究[J].沉积学报,1996,14(3):72-81.]
[2]Liu Chunyan,Zheng Herong,Hu Zongquan,et al.Characteristics of carbonate cementation in clastic rocks from the Chang 6 sandbody of Yanchang Formation,southern Ordos Basin[J].Science China:Earth Sciences,2012,42(11):1681-1689.[刘春燕,郑和荣,胡宗全,等.碎屑岩中的碳酸盐胶结特征——以鄂尔多斯盆地南部富县地区延长组长6砂体为例[J].中国科学:地球科学,2012,42(11):1681-1689.]
[3]Yao Guangqing,Li Huisheng.A preliminary investigation on carbonate cements and their origin in sandstones of Hetaoyuan Formation,Nanyang Depression[J].Earth Science:Journal of China University of Geosciences,1991,16(5):549-556.[姚光庆,李蕙生.南阳凹陷下第三系核桃园组砂岩中碳酸盐胶结物及其成因的初步探讨[J].地球科学:中国地质大学学报,1991,16(5):549-556.]
[4]Wang Xingxin,Zhou Shuxin.The effects of diagenesis of mudstone on the cementation of a sandstone reservoir[J].Acta Petrolei Sinica,1992,13(4):20-30.[王行信,周书欣.泥岩成岩作用对砂岩储层胶结作用的影响[J].石油学报,1992,13(4):20-30.]
[5]Zeng Jianhui,Peng Jilin,Qiu Nansheng,et al.Dissolution-precipitation in sandstone-shale contact and its petroleum geological meanings[J].Natural Gas Geoscience,2006,17(6):760-764.[曾溅辉,彭继林,邱楠生,等.砂—泥岩界面碳酸盐溶解—沉淀反应及其石油地质意义[J].天然气地球科学,2006,17(6):760-764.]
[6]Sun Zhixue,Sun Zhilei,Lu Hongjiang,et al.Characteristics of carbonate cements in sandstone reservoirs:A case from Yanchang Formation,middle and southern Ordos Basin,China[J].Petroleum Exploration and Development,2010,37(5):543-551.[孙致学,孙治雷,鲁洪江,等.砂岩储集层中碳酸盐胶结物特征——以鄂尔多斯盆地中南部延长组为例[J].石油勘探与开发,2010,37(5):543-551.]
[7]Sun Haitao,Zhong Dakang,Liu Luofu,et al.Carbonate cementation difference and its origin between exterior and interior surfaces of lenticular sand body in Shahejie Formation of Zhanhua Depression[J].Acta Petrolei Sinica,2010,31(2):246-252.[孙海涛,钟大康,刘洛夫,等.沾化凹陷沙河街组砂岩透镜体表面与内部碳酸盐胶结作用的差异及其成因[J].石油学报,2010,31(2):246-252.]
[8]Zhang Yongwang,Zeng Jianhui,Gao Xia,et al.Distribution characteristics and main controlling factors of carbonate cements in the Paleogene reservoirs in Dongying Depression[J].Journal of Jilin University:Earth Science Edition,2009,39(1):16-22.[张永旺,曾溅辉,高霞.东营凹陷古近系储层碳酸盐胶结物分布特征及主控因素[J].吉林大学学报:地球科学版,2009,39(1):16-22.]
[9]Zhao Xiaoqing,Bao Zhidong,Meng Yuanlin,et al.Distribution of carbonate cements in the members 3 and 4 of Lower Cretaceous Quantou Formation of northern Songliao Basin and its main controling factors[J].Journal of Palaeogeography.2013,15(1):1671-1505.[赵小庆,鲍志东,孟元林,等.松辽盆地北部下白垩统泉头组三、四段碳酸盐胶结物分布及其主控因素[J].古地理学报,2013,15(1):1671-1505.]
[10]Ketzer J M,Morad S,Evans R,et al.Distribution of diagenetic alterations in fluvial,deltaic,and shallow marine sandstones within a sequence stratigraphic framework:Evidence from the Mullaghmore Formation(Carboniferous),NW Ireland[J].Journal of Sedimentary Research,2002,72(6):760-774.
[11]Luo Zhong,Luo Ping,Zhang Xingyang,et al.Effect of sequence boundary on sandstones diagenesis and reservoir quality:An outcrop study from the Upper Triassic Yanchang Formation,Ordos Basin,northwest China[J].Acta Sedimentologica Sinica,2007,25(6):903-914.[罗忠,罗平,张兴阳,等.层序界面对砂岩成岩作用及储集层质量的影响——以鄂尔多斯盆地延河露头上三叠统延长组为例[J].沉积学报,2007,25(6):903-914.]
[12]Xu Bo,Sun Wei.Pores type and diagenesis in the Chang 4+5 sandstone reservoirs of the Jiyuan Oilfield[J].Journal of Jilin University:Earth Science Edition,2008,38(6):953-958.[徐波,孙卫.姬塬油田4+5砂岩储层孔隙类型与成岩作用[J].吉林大学学报:地球科学版,2008,38(6):953-958.]
[13]Wang Qi,Zhuo Xizhun,Chen Guojun,et al.Diagenetic evolution and high quality reservoir in Chang 6 sandstone in the western Ordos Basin[J].Acta Ptrolei Sinica,2005,26(5):17-23.[王琪,禚喜准,陈国俊,等.鄂尔多斯盆地西部长6砂岩成岩演化与优质储层[J].石油学报,2005,26(5):17-23.]
[14]Yao Jingli,Wang Qi,Zhang Rui,et al.Origin and spatial distribution of carbonate cements in Yanchang Fm.(Triassic) sandstones within the lacustrine center of Ordos Basin,NW China[J].Natural Gas Geoscience,2011,22(6):943-950.[姚泾利,王琪,张瑞,等.鄂尔多斯盆地中部延长组砂岩中碳酸盐胶结物成因与分布规律研究[J].天然气地球科学,2011,22(6):943-950.]
[15]Gong Fanhao,Bao Zhidong,Ji Hancheng,et al.Study on the reservoir diagenesis heterogeneity of Chang 6 member of Upper Triassic in Jiyuan area of Ordos Basin[J].Journal of Jilin University:Earth Science Edition,2011,41(3):641-645.[公繁浩,鲍志东,季汉成,等.鄂尔多斯盆地姬塬地区上三叠统长6段储层成岩非均质性[J].吉林大学学报:地球科学版,2011,41(3):641-645.]
[16]Du Jinliang.The Reservoir Characteristics and Controlling Factors of Chang 6 Formation in Ordos Basin[D].Xi’an:Northwest University,2006.[杜金良.鄂尔多斯盆地延长组长6储层特征及其控制因素研究[D].西安:西北大学,2006.]
[17]Deng Xiuqin.Accumulation Mechanism Research on Ultra-low Permeability and Large Scale Lithogical Reservoirs of Triassic Yanchang Formation in Ordos Basin[D].Xi’an:Northwest University,2011.[邓秀芹.鄂尔多斯盆地三叠系延长组超低渗透大型岩性油藏成藏机理研究[D].西安:西北大学,2011.]
[18]Keith M L,Weber J N.Carbon and oxygen isotopic composition of selected limestones and fossils[J].Geochimica et Cosmochimica Acta,1964,28(10/11):1786-1816.
[19]Fu Jinhua,Liu Guangdi,Yang Weiwei,et al.A study of the accumulation periods of low permeability reservoir of Yanchang Formation in Longdong area,Ordos Basin[J].Earth Science Frontiers,2013,20(2):125-131.[付金华,柳广弟,杨伟伟,等.鄂尔多斯盆地陇东地区延长组低渗透油藏成藏期次研究[J].地学前缘,2013,20(2):125-131.]
[20]Zhong Dakang,Zhou Lijian,Sun Haitao,et al.Influences of petrologic features on diagenesis and pore development:An example from the Triassic Yanchang Formation in Longdong area,Ordos Basin[J].Oil & Gas Geology,2012,33(6):892-896.[钟大康,周立建,孙海涛,等.储层岩石学特征对成岩作用及孔隙发育的影响——以鄂尔多斯盆地陇东地区三叠系延长组为例[J].石油与天然气地质,2012,33(6):892-896.]
[21]Zhong Dakang,Zhu Haihua,Sun Haitao,et al.Diagenesis and porosity evolution of sandstones in Longdong area,Ordos Basin[J].Earth Science Frontiers,2013,20(2):61-68.[钟大康,祝海华,孙海涛,等.鄂尔多斯盆地陇东地区延长组砂岩成岩作用及孔隙演化[J].地学前缘,2013,20(2):61-68.]
[22]Wang Ruifei,Chen Mingqiang.Quantitative analysis of porosity evolution during the reservoir sedimentation- diagenesis-taking the Yan 25 and Zhuang 40 areas in the Ordos Basin as examples[J].Acta Geologica Sinica,2007,81(10):1432-1438.[王瑞飞,陈明强.储层沉积—成岩过程中孔隙度参数演化的定量分析——以鄂尔多斯盆地沿25区块、庄40区块为例[J].地质学报,2007,81(10):1432-1438.]
[23]Beard D C,Wely P K.Influence of texture on porosity and permeability of unconsolidated sand[J].AAPG Bulletin,1973,57(2):349-369.
[24]Lan Yefang,Huang Sijing,Lv Jie.Influences of authigenic chlorite on pore structure in sandstone reservoir:A case study from Upper Triassic Yanchang Formation in Ordos Basin,China[J].Geological Bulletin of China,2011,30(1):134-140.[兰叶芳,黄思静,吕杰.储层砂岩中自生绿泥石对孔隙结构的影响——来自鄂尔多斯盆地上三叠统延长组的研究结果[J].科学通报,2011,30(1):134-140.]
[25]Yuan Guanghui,Cao Yingchang,Xi Kelai,et al.Feldspar dissolution and its impact on physical properties of Paleogene clastic reservoirs in the northern slope zone of the Dongying Sag[J].Acta Ptrolei Sinica,2013,34(5):853-865.[远光辉,操应长,葸克来,等.东营凹陷北带古近系碎屑岩储层长石溶蚀作用及其物性响应[J].石油学报,2013,34(5):853-865.]

文章导航

/