岩性油气藏 ›› 2022, Vol. 34 ›› Issue (2): 6674.doi: 10.12108/yxyqc.20220206
赵思思1, 李建明1,2, 柳金城3, 李积永3, 崔俊3
ZHAO Sisi1, LI Jianming1,2, LIU Jincheng3, LI Jiyong3, CUI Jun3
摘要: 硫酸盐热化学还原反应(TSR)作为溶蚀作用的一种重要机制在储层研究中具有重要意义。通过岩心观察、薄片鉴定、扫描电镜、测井等资料的分析,研究了柴达木盆地英西地区下干柴沟组上段TSR特征及其对储层的改造作用。研究结果表明:①TSR反应物主要为烃类与硫酸盐岩,生成物为高含量的H2S,CO2及蚀变烃类、方解石、单质硫、黄铁矿、含硫有机物等,反应起始温度为100~140℃,对应英西地区地层深度为3 113~4 536 m。②英西地区下干柴沟组上段TSR造成了碳酸盐岩孔缝充填物种类繁多,主要包括晶粒状和块状黄铁矿、单质硫及沥青等蚀变矿物,含硫矿物的δ34S值偏大;天然气烃组分具有甲烷含量高、重烃含量低的特征,干燥系数偏大,碳同位素δ13C1值和δ13C2值较大,并且常见H 2S及相对较高含量的CO2等TSR生成物,地层水盐度降低。③TSR相关流体对碳酸盐岩储层进行了改造,埋藏溶蚀作用发育,形成了不同规模的孔洞系统,平均增孔率可达3.5%,在一定程度上优化了储层物性。
中图分类号:
[1] 蔡春芳, 李宏涛.沉积盆地热化学硫酸盐还原作用评述[J].地球科学进展, 2005, 20(10):1100-1105. CAI Chunfang, LI Hongtao.Thermochemical sulfate reduction in sedimentary basins:A review[J]. Advances in Earth Science, 2005, 20(10):1100-1105. [2] 丁康乐, 李术元, 岳长涛, 等.硫酸盐热化学还原反应的研究进展[J].石油大学学报(自然科学版), 2005, 29(1):150-155. DING Kangle, LI Shuyuan, YUE Changtao, et al. Review of thermochemical sulfate reduction[J]. Journal of the University of Petroleum, China(Edition of Natural Sciences), 2005, 29(1):150-155. [3] WORDEN R H, SMALLEY P C. H2S-producing reactions in deep carbonate gas reservoirs:Khuff Formation, Abu Dhabi[J]. Chemical Geology, 1996, 133(1/2/3/4):157-171. [4] CROSS M M, MANNING D A C, BOTTRELL S H, et al. Thermochemical sulphate reduction(TSR):Experimental determination of reaction kinetics and implications of the observed reaction rates for petroleum reservoirs[J]. Organic Geochemistry, 2004, 35(4):393-404. [5] AMRANI A, DEEV A, SESSIONS A L, et al. The sulfur-isotopic compositions of benzothiophenes and dibenzothiophenes as a proxy for thermochemical sulfate reduction[J]. Geochimica et Cosmochimica Acta, 2012, 84:152-164. [6] KING H E, WALERS C C, HORN W C, et al. Sulfur isotope analysis of bitumen and pyrite associated with thermal sulfate reduction in reservoir carbonates at the Big Piney-La Barge production complex[J]. Geochimica et Cosmochimica Acta, 2014, 134:210-220. [7] GVIRTZMAN Z, SAID-AHMAD W, ELLIS G S, et al. Compound-specific sulfur isotope analysis of thiadiamondoids of oils from the Smackover Formation, USA[J]. Geochimica et Cosmochimica Acta, 2015, 167:144-161. [8] MORAD S, AL-AASM I S, NADER F H, et al. Impact of diagenesis on the spatial and temporal distribution of reservoir quality in the Jurassic Arab D and C members, offshore Abu Dhabi Oilfield, United Arab Emirates[J]. GeoArabia, 2012, 17 (3):17-56. [9] JIANG Lei, WORDEN R H, YANG Changbing. Thermochemical sulphate reduction can improve carbonate petroleum reservoir quality[J]. Geochimica et Cosmochimica Acta, 2018, 223:127-140. [10] 蔡春芳, 邬光辉, 李开开, 等.塔中地区古生界热化学硫酸盐还原作用与原油中硫的成因[J].矿物岩石地球化学通报, 2007, 26(1):44-48. CAI Chunfang, WU Guanghui, LI Kaikai, et al. Thermochemical sulfate reduction and origin of sulfur in crude oils in Paleozoic carbonate[J]. Bulletin of Mineralogy, Petrology and Geochemistry, 2007, 26(1):44-48. [11] 丁康乐, 李术元, 岳长涛, 等.原油中有机硫化物成因的硫酸盐热化学还原反应模拟研究[J].燃料化学学报, 2008, 36(1):48-54. DING Kangle, LI Shuyuan, YUE Changtao, et al. A simulation on the formation of organic sulfur compounds in petroleum from thermochemical sulfate reduction[J]. Journal of Fuel Chemistry and Technology, 2008, 36(1):48-54. [12] 李术元, 丁康乐, 岳长涛, 等.含水条件下正己烷与硫酸镁热化学还原反应体系模拟[J].中国石油大学学报(自然科学版), 2009, 33(1):120-126. LI Shuyuan, DING Kangle, YUE Changtao, et al. Simulation experiments on TSR system of n-hexane and magnesium sulphate in presence of water[J]. Journal of China University of Petroleum(Edition of Natural Sciences), 2009, 33(1):120-126. [13] 张永翰, 岳长涛, 李术元, 等.原油与硫酸盐的热化学硫酸盐还原反应模拟实验及动力学研究[J].沉积学报, 2011, 29(5):994-1001. ZHANG Yonghan, YUE Changtao, LI Shuyuan, et al. Thermal simulation experiments and kinetics on the system of crude oil and magnesium sulfate[J]. Acta Sedimentologica Sinica, 2011, 29(5):994-1001. [14] 罗厚勇, 刘文汇, 王万春, 等.四川盆地彭水地区五峰组黑色页岩中硫酸盐热化学还原反应矿物学研究[J].矿物岩石地球化学通报, 2015, 34(2):330-333. LUO Houyong, LIU Wenhui, WANG Wanchun, et al. Discovery of the mineralogical evidence of thermochemical sulfate reduction in black shale[J]. Bulletin of Mineralogy, Petrology and Geochemistry, 2015, 34(2):330-333. [15] 朱光有, 张水昌, 梁英波, 等.硫酸盐热化学还原反应对烃类的蚀变作用[J].石油学报, 2005, 26(5):52-56. ZHU Guangyou, ZHANG Shuichang, LIANG Yingbo, et al. Alteration of thermochemical sulfate reduction to hydrocarbons[J]. Acta Petrolei Sinica, 2005, 26(5):52-56. [16] 王广利, 李宁熙, 高波, 等.麻江奥陶系古油藏中的硫酸盐热化学还原反应:来自分子标志物的证据[J].科学通报, 2013, 58(33):3450-3457. WANG Guangli, LI Ningxi, GAO Bo, et al. Thermochemical sulfate reduction in fossil Ordovician deposits of the Majiang area:Evidence from molecular-marker investigation[J]. Chinese Science Bulletin, 2013, 58(33):3450-3457. [17] 张水昌, 朱光有, 何坤.硫酸盐热化学还原作用对原油裂解成气和碳酸盐岩储层改造的影响及作用机制[J].岩石学报, 2011, 27(3):809-826. ZHANG Shuichang, ZHU Guangyou, HE Kun. The effects of thermochemical sulfate reduction on occurrence oil-cracking gas and reformation of deep carbonate reservoir and the interaction mechanisms[J]. Acta Petrologica Sinica, 2011, 27(3):809-826. [18] 杜春国, 郝芳, 邹华耀, 等.热化学硫酸盐还原作用对碳酸盐岩气藏的化学改造:以川东北地区长兴组-飞仙关组气藏为例[J].地质学报, 2007, 81(1):119-126. DU Chunguo, HAO Fang, ZOU Huayao, et al. Effect of thermochemical sulfate reduction upon carbonate gas reservoir:An example from the northeast Sichuan Basin[J]. Acta Geologica Sinica, 2007, 81(1):119-126. [19] 孔庆芬, 张文正, 李剑锋, 等.鄂尔多斯盆地奥陶系盐下天然气地球化学特征及成因[J].天然气地球科学, 2019, 30(3):423-432. KONG Qingfen, ZHANG Wenzheng, LI Jianfeng, et al. Geochemical characteristics and genesis of Ordovician natural gas under gypsolyte in Ordos Basin[J]. Natural Gas Geoscience, 2019, 30(3):423-432. [20] 马安来, 金之钧, 李慧莉, 等.塔里木盆地顺北地区奥陶系超深层油藏蚀变作用及保存[J].地球科学, 2020, 45(5):1737-1753. MA Anlai, JIN Zhijun, LI Huili, et al. Secondary alteration and preservation of ultra-deep Ordovician oil reservoirs of north Shuntuoguole area of Tarim Basin, NW China[J]. Earth Science, 2020, 45(5):1737-1753. [21] 贾连奇, 蔡春芳, 李红霞, 等.塔中地区热化学硫酸盐还原作用对深埋白云岩储层的改造[J].沉积学报, 2016, 34(6):1057-1067. JIA Lianqi, CAI Chunfang, LI Hongxia, et al. Thermochemical sulfate reduction-related mesogenetic dissolution of deeply buried dolostone reservoirs in the Tazhong area[J]. Acta Sedimentologica Sinica, 2016, 34(6):1057-1067. [22] 王建功, 张道伟, 易定红, 等.柴西地区下干柴沟组上段湖相碳酸盐岩沉积特征及相模式[J].岩性油气藏, 2018, 30(4):1-13. WANG Jiangong, ZHANG Daowei, YI Dinghong, et al. Depositional characteristics and facies model of lacustrine carbonate rocks in the upper member of lower Ganchaigou Formation in western Qaidam Basin[J]. Lithologic Reservoirs, 2018, 30(4):1-13. [23] 易定红, 王建功, 石兰亭, 等.柴达木盆地英西地区E32碳酸盐岩沉积演化特征[J].岩性油气藏, 2019, 31(2):46-55. YI Dinghong, WANG Jiangong, SHI Lanting, et al. Sedimentary evolution characteristics of E32 carbonate rocks in Yingxi area, Qaidam Basin[J]. Lithologic Reservoirs, 2019, 31(2):46-55. [24] 冯进来, 曹剑, 胡凯, 等.柴达木盆地中深层混积岩储层形成机制[J].岩石学报, 2011, 27(8):2461-2472. FENG Jinlai, CAO Jian, HU Kai, et al. Forming mechanism of middle-deep mixed rock reservoir in Qaidam Basin[J]. Acta Petrologica Sinica, 2011, 27(8):2461-2472. [25] 黄成刚, 常海燕, 崔俊, 等.柴达木盆地西部地区渐新世沉积特征与油气成藏模式[J].石油学报, 2017, 38(11):1230-1243. HUANG Chenggang, CHANG Haiyan, CUI Jun, et al. Oligocene sedimentary characteristics and hydrocarbon accumulation model in the western Qaidam Basin[J]. Acta Petrolei Sinica, 2017, 38 (11):1230-1243. [26] 吴瑾, 朱军, 王兆兵, 等.柴达木盆地英西地区渐新统湖相碳酸盐岩储层形成与演化[J].大庆石油地质与开发, 2021, 40 (3):13-23. WU Jin, ZHU Jun, WANG Zhaobing, et al. Formation and evolution of Oligocene lacustrine carbonate reservoirs in Yingxi area of Qaidam Basin[J]. Petroleum Geology & Oilfield Development in Daqing, 2021, 40(3):13-23. [27] 陈启林, 张小军, 黄成刚, 等.柴达木盆地英西地区渐新统硫酸盐硫同位素组成及其地质意义[J].地质论评, 2019, 65(3):558-572. CHEN Qilin, ZHANG Xiaojun, HUANG Chenggang, et al. Sulfur isotopic composition of sulphate in Oligocene series in Yingxi area, Qaidam Basin, and its geological significance[J]. Geological Review, 2019, 65(3):558-572. [28] 田继先, 赵健, 张静, 等.柴达木盆地英雄岭地区硫化氢形成机理及分布预测[J].岩性油气藏, 2020, 32(5):84-92. TIAN Jixian, ZHAO Jian, ZHANG Jing, et al. Formation mechanism and distribution prediction of hydrogen sulfide in Yingxiongling area, Qaidam Basin[J]. Lithologic Reservoirs, 2020, 32(5):84-92. [29] 戴俊生, 叶兴树, 汤良杰, 等.柴达木盆地构造分区及其油气远景[J].地质科学, 2003, 38(3):291-296. DAI Junsheng, YE Xingshu, TANG Liangjie, et al. Tectonic units and oil-gas potential of the Qaidam Basin[J]. Chinese Journal of Geology, 2003, 38(3):291-296. [30] 郭荣涛, 马达德, 张永庶, 等.柴达木盆地英西地区下干柴沟组上段超压孔缝型储层特征及形成机理[J].石油学报, 2019, 40(4):411-422. GUO Rongtao, MA Dade, ZHANG Yongshu, et al. Characteristics and formation mechanism of overpressure pore-fracture reservoirs for upper member of Xiaganchaigou Formation in the west of Yingxiong ridge, Qaidam Basin[J]. Acta Petrolei Sinica, 2019, 40(4):411-422. [31] 黄成刚, 袁剑英, 田光荣, 等.柴西地区始新统湖相白云岩储层地球化学特征及形成机理[J].地学前缘, 2016, 23(3):230-242. HUANG Chenggang, YUAN Jianying, TIAN Guangrong, et al. Geochemical characteristics and formation mechanism of Eocene lacustrine dolomite reservoir in western Qaidam[J]. Earth Science Frontiers, 2016, 23(3):230-242. [32] 徐彬, 李建明, 张永庶, 等.T-R旋回层序在陆相盐湖盆地中的应用:以柴西南英西地区下干柴沟组上段为例[J].断块油气田, 2020, 27(4):412-417. XU Bin, LI Jianming, ZHANG Yongshu, et al. Application of TR cycle sequence in continental salt lake basin:A case study of the Upper Member of Lower Ganchaigou Formation in Yingxi area, southwestern Qaidam Basin[J]. Fault-Block Oil & Gas Field, 2020, 27(4):412-417. [33] 张永庶, 周飞, 王波, 等.柴西地区天然气成因、类型及成藏规律[J].中国石油勘探, 2019, 24(4):498-508. ZHANG Yongshu, ZHOU Fei, WANG Bo, et al. Genesis, types and reservoir formation law of natural gas in western Qaidam Basin[J]. China Petroleum Exploration, 2019, 24(4):498-508. |
[1] | 崔俊, 毛建英, 陈登钱, 施奇, 李雅楠, 夏晓敏. 柴达木盆地西部地区古近系湖相碳酸盐岩储层特征[J]. 岩性油气藏, 2022, 34(2): 45-53. |
[2] | 杜江民, 龙鹏宇, 秦莹民, 张桐, 马宏宇, 盛军. 柴达木盆地英西地区渐新统E32储层特征及成藏模式[J]. 岩性油气藏, 2021, 33(5): 1-10. |
[3] | 李翔, 王建功, 李飞, 王玉林, 伍坤宇, 李亚锋, 李显明. 柴达木盆地西部始新统湖相微生物岩沉积特征——以西岔沟和梁东地区下干柴沟组为例[J]. 岩性油气藏, 2021, 33(3): 63-73. |
[4] | 冯德浩, 刘成林, 田继先, 太万雪, 李培, 曾旭, 卢振东, 郭轩豪. 柴达木盆地一里坪地区新近系盆地模拟及有利区预测[J]. 岩性油气藏, 2021, 33(3): 74-84. |
[5] | 张汶, 吕世聪, 赵大林, 贾海松, 蔡越钎. 渤海湾盆地西南部古近系滩坝沉积特征及主控因素[J]. 岩性油气藏, 2021, 33(3): 85-94. |
[6] | 黄华, 袁娟梅, 彭伟, 张亮, 文辉. 江汉盆地古近系潜江组盐湖沉积特征与成藏模式[J]. 岩性油气藏, 2021, 33(2): 9-16. |
[7] | 向巧维, 李小平, 丁琳, 杜家元. 珠江口盆地珠一坳陷古近系高自然伽马砂岩形成机制及油气地质意义[J]. 岩性油气藏, 2021, 33(2): 93-103. |
[8] | 龙国徽, 王艳清, 朱超, 夏志远, 赵健, 唐鹏程, 房永生, 李海鹏, 张娜, 刘健. 柴达木盆地英雄岭构造带油气成藏条件与有利勘探区带[J]. 岩性油气藏, 2021, 33(1): 145-160. |
[9] | 田光荣, 王建功, 孙秀建, 李红哲, 杨魏, 白亚东, 裴明利, 周飞, 司丹. 柴达木盆地阿尔金山前带侏罗系含油气系统成藏差异性及其主控因素[J]. 岩性油气藏, 2021, 33(1): 131-144. |
[10] | 孔红喜, 王远飞, 周飞, 朱军, 陈阳阳, 宋德康. 鄂博梁构造带油气成藏条件分析及勘探启示[J]. 岩性油气藏, 2021, 33(1): 175-185. |
[11] | 刘博, 徐刚, 纪拥军, 魏路路, 梁雪莉, 何金玉. 页岩油水平井体积压裂及微地震监测技术实践[J]. 岩性油气藏, 2020, 32(6): 172-180. |
[12] | 田继先, 赵健, 张静, 孔骅, 房永生, 曾旭, 沙威, 王牧. 柴达木盆地英雄岭地区硫化氢形成机理及分布预测[J]. 岩性油气藏, 2020, 32(5): 84-92. |
[13] | 张道伟, 薛建勤, 伍坤宇, 陈晓冬, 王牧, 张庆辉, 郭宁. 柴达木盆地英西地区页岩油储层特征及有利区优选[J]. 岩性油气藏, 2020, 32(4): 1-11. |
[14] | 陈更新, 王建功, 杜斌山, 刘应如, 李艳丽, 杨会洁, 李志明, 俞晓峰. 柴达木盆地尖北地区裂缝性基岩气藏储层特征[J]. 岩性油气藏, 2020, 32(4): 36-47. |
[15] | 庞小军, 王清斌, 解婷, 赵梦, 冯冲. 黄河口凹陷北缘古近系物源及其对优质储层的控制[J]. 岩性油气藏, 2020, 32(2): 1-13. |
|