沈臻欢;于炳松;韩舒筠;杨志辉;黄志恒;

• 1:中国地质大学(北京)地球科学与资源学院

摘要(Abstract)：

碳酸盐胶结物对碎屑岩储层质量具有较大影响。根据渤南洼陷沙三段47口井的地层水化学数据,采用化学热力学方法,结合沉积相分布、薄片观察和孔隙度等资料,预测有利储层发育带。结果表明:现今地层水多为NaHCO3型,有利于碳酸盐矿物的沉淀(吉布斯自由能ΔG>0kJ/mol),CaCl2型水相对有利于碳酸盐矿物的溶解。碳酸盐矿物的含量与孔隙度在纵向和平面上有较好的对应关系。研究区吉布斯自由能较小的区域主要在三角洲沉积相,该区域碳酸盐含量较低,孔隙度发育较好,是有利储层的发育区。因此,碳酸盐胶结物对研究区碎屑岩储层质量起决定性影响,通过对碳酸盐矿物的溶解—沉淀热力学平衡计算,可作为一种新的储层预测方法。

关键词(KeyWords)：热力学;地层水;碳酸盐胶结物;孔隙度;储层质量;沙河街组;渤南洼陷

Abstract:

Keywords:

基金项目(Foundation):中国石化股份有限公司科技重大项目(ZDP17008)

作者(Author):沈臻欢;于炳松;韩舒筠;杨志辉;黄志恒;

Email:

参考文献(References)：

• [1]王思琦,鲜本忠,万锦峰,等.南堡凹陷滩海地区东营组和沙河街组一段储层特征及其成因机制[J].东北石油大学学报,2015,39(4):54-62.Wang Siqi,Xian Benzhong,Wan Jinfeng,et al.Reservoir characteristics and controlling factors in the offshore areas,the eocene period of the Nanpu sag[J].Journal of Northeast Petroleum University,2015,39(4):54-62.

• [2]石世革,杨田,操应长,等.临南洼陷浊积岩储层成岩作用与孔隙演化[J].特种油气藏,2017,24(2):57-62.Shi Shige,Yang Tian,Cao Yingchang,et al.Diagenesis and pore evolution of turbidite reservoir in the Linnan depression[J].Special Oil&Gas Reservoirs,2017,24(2):57-62.

• [3] Giles M R,De Boer R B.Origin and significance of redistributional secondary porosity[J].Marine and Petroleum Geology,1990,7:378-397.

• [4]周鸿璞,黄文辉,姜在兴,等.利津洼陷沙四上亚段砂岩透镜体成岩作用非均质性成因[J].东北石油大学学报,2015,39(5):52-62.Zhou Hongpu,Huang Wenhui,Jiang Zaixing,et al.Original of diagenesis heterogeneity of lenticular sandbodies in the upper Es4,Lijin sag[J].Journal of Northeast Petroleum University,2015,39(5):52-62.

• [5] Mansurbeg H,De Ros L F,Morad S,et al.Meteoric-water diagenesis in late cretaceous canyon-fill turbidite reservoirs from the Espirito Santo basin,eastern Brazil[J].Marine and Petroleum Geology,2012,37:7-26.

• [6]邱隆伟,王义,代莉,等.沾化凹陷孤北洼陷沙二段—沙三中亚段上部沉积体系分析[J].东北石油大学学报,2016,40(1):89-102.Qiu Longwei,Wang Yi,Dai Li,et al.Sedimentary system analysis of Es2to upper part of Es3in Gubei sub-sag of Zhanhua depression[J].Journal of Northeast Petroleum University,2016,40(1):89-102.

• [7]孟涛,郭峰,穆星,等.济阳坳陷东部中生界二次埋藏型储层成岩作用[J].特种油气藏,2016,23(6):16-20.Meng Tao,Guo Feng,Mu Xing,et al.Diagenesis of Mesozoic secondary-buried reservoir in eastern Jiyang depression[J].Special Oil&Gas Reservoirs,2016,23(6):16-20.

• [8] Morse J W,Arvidson R S.The dissolution kinetics of major sedimentary carbonate minerals[J].Earth Science Rev.,2002,58:51-84.

• [9] Genthon P,Schott J,Dandurand J L.Carbonate diagenesis during thermo-convection:Application to secondary porosity generation in clastic reservoirs[J].Chemical Geology,1997,142:41-61.

• [10] Kafri U,Sass E.Hollow carbonate pebbles:A case study of selective secondary porosity generation,Neogene,Israel[J].Sedimentary Geology,1996,103:161-174.

• [11]于炳松,林畅松.油气储层埋藏成岩过程中的地球化学热力学[J].沉积学报,2009,27(5):896-903.Yu Bingsong,Lin Changsong.Geochemical thermodynamics of diagenesis in reservoir s for oil and gas[J].Acta Sedimentologica Sinica,2009,27(5):896-903.

• [12]阮壮,于炳松,李朝晖,等.埋藏条件下方解石热力学平衡及其在塔河油田埋藏岩溶预测中的应用[J].吉林大学学报:地球科学版,2011,41(4):1020-1027.Ruan Zhuang,Yu Bingsong,Li Chaohui,et al.Thermodynamic equilibrium of calcite in strata environment and its application of burial karst forcasting in Tahe oilfield,Tarim basin[J].Journal of Jilin University:Earth Science Edition,2011,41(4):1020-1027.

• [13]陈圆圆,于炳松.碳酸盐岩溶解—沉淀热力学模型及其在塔北地区的应用[J].沉积学报,2012,30(2):219-230.Chen Yuanyuan,Yu Bingsong.Dissolution-precipitation thermodynamic models of carbonate rock and the application in the northern part of Tarim basin[J].Acta Sedimentologica Sinica,2012,30(2):219-230.

• [14]沈忠民,宫亚军,刘四兵,等.川西坳陷新场地区上三叠统须家河组地层水成因探讨[J].地质论评,2010,56(1):82-88.Shen Zhongmin,Gong Yajun,Liu Sibing,et al.A discussion genesis of the upper Triassic Xujiahe formation water in Xinchang area,western Sichuan depression[J].Geological Review,2010,56(1):82-88.

• [15]刘四兵,沈忠民,刘昊年,等.川西坳陷中段上三叠统须家河组水岩相互作用机制[J].石油学报,2013,34(1):47-58.Liu Sibing,Shen Zhongmin,Liu Haonian,et al.Mechanism of water-rock interaction of the upper Triassic Xujiahe formation in the middle part of western Sichuan depression[J].Acta Petrolei Sinica,2013,34(1):47-58.

• [16]昝灵,张枝焕,王顺华,等.渤南洼陷北部陡坡带砂砾岩储层成岩作用研究[J].天然气地球科学,2011,22(2):299-306.Zan Ling,Zhang Zhihuan,Wang Shunhua,et al.Diagenesis of sandy conglomerate reservoir in northern steep slope of Bonan subsag[J].Natural Gas Geoscience,2011,22(2):299-306.

• [17]操应长,张少敏,王艳忠,等.渤南洼陷近岸水下扇储层岩相—成岩相组合及其物性特征[J].大庆石油地质与开发,2015,34(2):41-47.Cao Yingchang,Zhang Shaomin,Wang Yanzhong,et al.Combination and physical property characteristics of the lithofacies and diagenetic facies for the nearshore subaqueous fan reservoirs in Bonan sag[J].Petroleum Geology&Oilfield Development in Daqing,2015,34(2):41-47.

• [18] Liu Hua,Jiang Youlu,Song Guoqi,et al.Overpressure characteristics and effects on hydrocarbon distribution in the Bonan sag,Bohai Bay basin,China[J].Journal of Petroleum Science and Engineering,2017,149:811-821.

• [19]孙波,陶文芳,张善文,等.济阳坳陷断层活动差异性与油气富集关系[J].特种油气藏,2015,22(3):18-21.Sun Bo,Tao Wenfang,Zhang Shanwen,et al.Relationship between fault activity difference and hydrocarbon enrichment in Jiyang depression[J].Special Oil&Gas Reservoirs,2015,22(3):18-21.

• [20]张厚福.石油地质学[M].北京:石油工业出版社,1999:29-30.Zhang Houfu.Petroleum geology[M].Beijing:Petroleum Industry Press,1999:29-30.

• [21]夏勇,袁继明,夏勇辉,等.靖边气田南部非边底型地层水分布主控因素及预测[J].东北石油大学学报,2015,39(2):1-8.Xia Yong,Yuan Jiming,Xia Yonghui,et al.Non edge and bottom aquifer controlling factors and distribution forecast in southern Jingbian gas field[J].Journal of Northeast Petroleum University,2015,39(2):1-8.

• [22] Ruan Zhuang,Yu Bingsong,Wang Lidong,et al.Prediction of buried calcite dissolution in the Ordovician carbonate reservoir of the Tahe oilfield,NW China:Evidence from formation water[J].Chemie der Erde,2013,73:469-479.

• [23]刘建清,赖兴运,于炳松.地层水条件下碳酸盐矿物热力学平衡条件及其在克拉2气田的应用[J].沉积学报,2006,24(5):636-640.Liu Jianqing,Lai Xingyun,Yu Bingsong.The thermodynamics equilibrium condition of carbonate minerals in strata environment and its application in Kela2gas field[J].Acta Sedimentologica Sinica,2006,24(5):636-640.

• [24] Capuano R M.Hydrochemical constraints on fluid-mineral equilibria during compaction diagenesis of kerogen-rich geopressured sediments[J].Geoehim Cosmochim Acta,1990,54:1283-1299.

• [25]赖兴运,于炳松,陈元军,等.碎屑岩骨架颗粒溶解的热力学条件及其在克拉2气田的应用[J].中国科学(D辑:地球科学),2004,34(1):45-53.Lai Xingyun,Yu Bingsong,Chen Yuanjun,et al.The thermodynamic condition of rock fragment dissolution and its application in Kela2gas field[J].Science in China(D:Earth Sciences),2004,34(1):45-53.

• [26] Helgeson H C,Delany J M,Nesbitt H W,et al.Summary an d critique of the thermodynamic properties of rock-forming minerals[J].American Journal of Science,1978,278A:1-229.

• [27]马奔奔,操应长,王艳忠,等.渤南洼陷北部陡坡带沙四上亚段成岩演化及其对储层物性的影响[J].沉积学报,2015,33(1):170-182.Ma Benben,Cao Yingchang,Wang Yanzhong,et al.Diagenetic evolution and its influence on physical properties of Es4s reservoir in the northern steep zone of the Bonan sag[J].Acta Sedimentologica Sinica,2015,33(1):170-182.