基于埋藏溶蚀模拟实验的白云岩储层孔隙效应研究——以塔里木盆地下寒武统肖尔布拉克组为例

郑剑锋; 沈安江; 黄理力; 陈永权; 佘敏

doi:10.11781/sysydz201705716

基于埋藏溶蚀模拟实验的白云岩储层孔隙效应研究——以塔里木盆地下寒武统肖尔布拉克组为例

doi: 10.11781/sysydz201705716

郑剑锋^1,2,
沈安江^1,2,
黄理力^1,2,
陈永权³,
佘敏^1,2

1.
中国石油集团碳酸盐岩储层重点实验室, 杭州 310023
2. 中国石油杭州地质研究院, 杭州 310023
3. 中国石油塔里木油田分公司, 新疆库尔勒 841000

基金项目: 国家重大科技专项（2016ZX05004002）及中国石油天然气股份有限公司科技部项目（2016B-04）资助。

详细信息

作者简介:
郑剑锋(1977—),男,硕士,高级工程师,从事碳酸盐岩沉积储层研究.E-mail:zhengjf_hz@petrochina.com.cn.

中图分类号: TE122.21
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出版历程
- 收稿日期: 2017-05-13
- 修回日期: 2017-07-27
- 刊出日期: 2017-09-28

Pore effect of dolomite reservoirs based on burial dissolution simulation: A case study of the Lower Cambrian Xiaoerbulake Formation in the Tarim Basin

1.
CNPC Key Laboratory of Carbonate Reservoir, Hangzhou, Zhejiang 310023, China
2. PetroChina Hangzhou Research Institute of Geology, Hangzhou, Zhejiang 310023, China
3. PetroChina Tarim Oil Field Company, Korla, Xinjiang 841000, China

摘要

摘要: 埋藏溶蚀作用是白云岩储层发育的控制因素之一，但其对储层的孔隙效应不清，从而制约埋藏溶蚀型白云岩储层的评价与勘探。以塔里木盆地下寒武统肖尔布拉克组白云岩为例，优选藻砂屑白云岩、叠层石白云岩和凝块石白云岩3种最常见的岩相为样品，用0.2%的乙酸溶液代表埋藏环境中的有机酸，开展高温高压条件下、开放连续流动体系中的储层溶蚀模拟实验。实验结果显示，不同温压条件、不同岩相特征样品的孔隙度都有所增大，但渗透率呈指数级增大；藻砂屑白云岩的储集空间类型从孔隙型演变为孔隙—孔洞型，叠层石白云岩和凝块石白云岩的储集空间类型从孔隙型演变为溶孔—溶缝型。由此说明在埋藏环境中，有机酸对白云岩具有较强的溶蚀性，白云岩储层的初始孔隙结构控制着最终储集空间类型；埋藏溶蚀作用从开始相对均匀溶蚀逐渐转变为非均匀溶蚀，导致溶孔、溶缝非均质发育，局部孔隙间连通性变好。因此埋藏溶蚀作用对改善白云岩储层渗透率的贡献更大。
- 埋藏溶蚀 /
- 模拟实验 /
- 孔隙效应 /
- 白云岩储层 /
- 肖尔布拉克组 /
- 塔里木盆地
Abstract: Burial dissolution is one of the important factors which control the development of dolomite reservoirs, but its effect on porosity is still not clear, which restricts the evaluation and exploration of burial dissolution dolomite reservoirs. This study took arene dolomites, stromatolite dolomites and thrombolite dolomites of the Lower Cambrian Xiaoerbulake Formation in the Tarim Basin as an example, used 0.2% acetic acid solution instead of organic acids of burial environment, carried out dissolution simulation experiments of dolomite reservoirs in the condition of high temperature and high pressure. The results showed three different samples' porosity was improved in different temperatures and pressures, but their permeability increased exponentially. The reservoir space of arene dolomites changed from pores to pores and vugs, while the reservoir space of stromatolite dolomites and thrombolite dolomites changed from pores to pores and solution fractures. It implied that organic acid had a strong solubility to dolomites, and the initial pore structure controlled the final reservoir space type. With the dissolution from homogeneous to heterogeneous, the vugs and solution fractures developed heterogeneously, and reservoir connectivity was partly improved. So, burial dissolution is of great importance in reforming the permeability of dolomite reservoirs.
- burial dissolution /
- simulation experiment /
- porosity effect /
- dolomite reservoir /
- Xiaoerbulake Formation /
- Tarim Basin

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参考文献(32)

[1]	Moore C H.Carbonate reservoirs:Porosity evolution and diagenesis in a sequence stratigraphic framework[M].Amsterdam:Elsevier,2001:145-183.
[2]	张新华,黄文辉,王安甲,等.塔里木盆地下古生界白云岩储层发育控制因素分析[J].西北大学学报(自然科学版),2009,39(2):288-292. Zhang Xinhua,Huang Wenhui,Wang Anjia,et al.Analysis of the reservoir development controlling factors of the Cambro-Lower Ordovician dolomite in Tarim Basin[J].Journal of Northwest University (Natural Science Edition),2009,39(2):288-292.
[3]	郑剑锋,沈安江,乔占峰,等.塔里木盆地下奥陶统蓬莱坝组白云岩成因及储层主控因素分析：以巴楚大班塔格剖面为例[J].岩石学报,2013,29(9):3223-3232. Zheng Jianfeng,Shen Anjiang,Qiao Zhanfeng,et al.Genesis of dolomite and main controlling factors of reservoir in Penglaiba Formation of Lower Ordovician,Tarim Basin:A case study of Dabantage outcrop in Bachu area[J].Acta Petrologica Sinica,2013,29(9):3223-3232.
[4]	赵文智,沈安江,郑剑锋,等.塔里木、四川及鄂尔多斯盆地白云岩储层孔隙成因探讨及对储层预测的指导意义[J].中国科学(地球科学),2014,44(9):1925-1939. Zhao Wenzhi,Shen Anjiang,Zheng Jianfeng,et al.The porosity origin of dolostone reservoirs in the Tarim,Sichuan and Ordos basins and its implication to reservoir prediction[J].Science China(Earth Sciences),2014,57(10):2498-2511.
[5]	沈安江,赵文智,胡安平,等.海相碳酸盐岩储集层发育主控因素[J].石油勘探与开发,2015,42(5):545-554. Shen Anjiang,Zhao Wenzhi,Hu Anping,et al.Major factors controlling the development of marine carbonate reservoirs[J].Petroleum Exploration and Development,2015,42(5):545-554.
[6]	费剑炜,杨红彩,周芳芳,等.塔里木盆地雅克拉断凸及周缘前中生界白云岩储层成因与勘探潜力[J].石油实验地质,2015,37(3):286-292. Fei Jianwei,Yang Hongcai,Zhou Fangfang,et al.Genetic types and exploration potential of pre-Mesozoic dolomite reservoirs in Yakela fault arch and its surrounding areas,Tarim Basin[J].Petroleum Geology & Experiment,2015,37(3):286-292.
[7]	江文剑,侯明才,邢凤存,等.川东南寒武系娄山关群白云岩成岩作用特征[J].石油实验地质,2016,38(3):311-319. Jiang Wenjian,Hou Mingcai,Xing Fengcun,et al.Diagenetic characteristics of dolomites in the Cambrian Loushanguan Group in southeastern Sichuan Basin[J].Petroleum Geology & Experiment,2016,38(3):311-319.
[8]	李小宁,黄思静,黄树光,等.四川盆地南江栖霞组白云岩岩石学、地球化学特征及成因[J].石油实验地质,2016,38(2):251-258,265. Li Xiaoning,Huang Sijing,Huang Shuguang,et al.Petrologic and geochemical characteristics and the origin of dolomites in the Qixia Formation in Nanjiang county of the Sichuan Basin[J].Petroleum Geology & Experiment,2016,38(2):251-258,265.
[9]	毕彩芹,朱强,杨园园.也门1区块白云岩成因及其对油气成藏的影响[J].油气地质与采收率,2017,24(3):44-49,65. Bi Caiqin,Zhu Qiang,Yang Yuanyuan.Genetic analysis on the dolomite formation and its influence on hydrocarbon accumulation in Block1,Yemen[J].Petroleum Geology and Recovery Efficiency,2017,24(3):44-49,65.
[10]	张静,胡见义,罗平,等.深埋优质白云岩储集层发育的主控因素与勘探意义[J].石油勘探与开发,2010,37(2):203-210. Zhang Jing,Hu Jianyi,Luo Ping,et al.Master control factors of deep high-quality dolomite reservoirs and the exploration significance[J].Petroleum Exploration and Development,2010,37(2):203-210.
[11]	邢凤存,张文淮,李思田.热流体对深埋白云岩储集性影响及其油气勘探意义：塔里木盆地柯坪露头区研究[J].岩石学报,2011,27(1):266-276. Xing Fengcun,Zhang Wenhuai,Li Sitian.Influence of hot fluids on reservoir property of deep buried dolomite strata and its signi-ficance for petroleum exploration:A case study of Keping outcrop in Tarim Basin[J].Acta Petrologica Sinica,2011,27(1):266-276.
[12]	金振奎,余宽宏.白云岩储集层埋藏溶蚀作用特征及意义：以塔里木盆地东部下古生界为例[J].石油勘探与开发,2011,38(4):428-434. Jin Zhenkui,Yu Kuanhong.Characteristics and significance of the burial dissolution of dolomite reservoirs:Taking the Lower Palaeozoic in eastern Tarim Basin as an example[J].Petroleum Exploration and Development,2011,38(4):428-434.
[13]	Sun S Q.Dolomite reservoirs:Porosity evolution and reservoir characteristics[J].AAPG Bulletin,1995,79(2):186-204.
[14]	Davies G R,Smith Jr L B.Structurally controlled hydrothermal dolomite reservoir facies:An overview[J].AAPG Bulletin,2006,90(11):1641-1690.
[15]	朱光有,张水昌,梁英波,等.TSR对深部碳酸盐岩储层的溶蚀改造：四川盆地深部碳酸盐岩优质储层形成的重要方式[J].岩石学报,2006,22(8):2182-2194. Zhu Guangyou,Zhang Shuichang,Liang Yingbo,et al.Dissolution and alteration of the deep carbonate reservoirs by TSR:An important type of deep-buried high-quality carbonate reservoirs in Sichuan Basin[J].Acta Petrologica Sinica,2006,22(8):2182-2194.
[16]	Pokrovsky O S,Golubev S V,Schott J.Dissolution kinetics of calcite,dolomite and magnesite at 25 ℃ and 0 to 50 atm pCO₂[J].Chemical Geology,2005,217(3/4):239-255.
[17]	Liu Zaihua,Yuan Daoxian,Dreybrodt W.Comparative study of dissolution rate-determining mechanisms of limestone and dolomite[J].Environmental Geology,2005,49(2):274-279.
[18]	黄思静,成欣怡,赵杰,等.近地表温压条件下白云岩溶解过程的实验研究[J].中国岩溶,2012,31(4):349-359. Huang Sijing,Cheng Xinyi,Zhao Jie,et al.Test on the dolomite dissolution under subaerial temperature and pressure[J].Carsologica Sinica,2012,31(4):349-359.
[19]	佘敏,寿建峰,贺训云,等.碳酸盐岩溶蚀机制的实验探讨:表面溶蚀与内部溶蚀对比[J].海相油气地质,2013,18(3):55-61. She Min,Shou Jianfeng,He Xunyun,et al.Experiment of dissolution mechanism of carbonate rocks:Surface dissolution and internal dissolution[J].Marine Origin Petroleum Geology,2013,18(3):55-61.
[20]	佘敏,寿建峰,沈安江,等.从表生到深埋藏环境下有机酸对碳酸盐岩溶蚀的实验模拟[J].地球化学,2014,43(3):276-286. She Min,Shou Jianfeng,Shen Anjiang,et al.Experimental simulation of dissolution for carbonate rocks in organic acid under the conditions from epigenesis to deep burial environments[J].Geochimica,2009,43(3):276-286.
[21]	佘敏,寿建峰,沈安江,等.埋藏有机酸性流体对白云岩储层溶蚀作用的模拟实验[J].中国石油大学学报(自然科学版),2014,38(3):10-17. She Min,Shou Jianfeng,Shen Anjiang,et al.Experimental simulation of dissolution and alteration of buried organic acid fluid on dolomite reservoir[J].Journal of China University of Petro-leum,2014,38(3):10-17.
[22]	郑和荣,吴茂炳,邬兴威,等.塔里木盆地下古生界白云岩储层油气勘探前景[J].石油学报,2007,28(2):1-8. Zheng Herong,Wu Maobing,Wu Xingwei,et al.Oil-gas exploration prospect of dolomite reservoir in the Lower Paleozoic of Tarim Basin[J].Acta Petrolei Sinica,2007,28(2):1-8.
[23]	赵文智,沈安江,胡素云,等.塔里木盆地寒武—奥陶系白云岩储层类型与分布特征[J].岩石学报,2012,28(3):758-768. Zhao Wenzhi,Shen Anjiang,Hu Suyun,et al.Types and distributional features of Cambrian-Ordovician dolostone reservoirs in Tarim Basin,northwestern China[J].Acta Petrologica Sinica,2012,28(3):758-768.
[24]	王招明,谢会文,陈永权,等.塔里木盆地中深1井寒武系盐下白云岩原生油气藏的发现与勘探意义[J].中国石油勘探,2014,19(2):1-13. Wang Zhaoming,Xie Huiwen,Chen Yongquan,et al.Discovery and exploration of Cambrian subsalt dolomite original hydrocarbon reservoir at Zhongshen-1 well in Tarim Basin[J].China Petroleum Exploration,2014,19(2):1-13.
[25]	杜金虎,潘文庆.塔里木盆地寒武系盐下白云岩油气成藏条件与勘探方向[J].石油勘探与开发,2016,43(3):327-339. Du Jinhu,Pan Wenqing.Accumulation conditions and play targets of oil and gas in the Cambrian subsalt dolomite,Tarim Basin,NW China[J].Petroleum Exploration and Development,2016,43(3):327-339.
[26]	宋金民,罗平,杨式升,等.塔里木盆地下寒武统微生物碳酸盐岩储集层特征[J].石油勘探与开发,2014,41(4):404-413. Song Jinmin,Luo Ping,Yang Shisheng,et al.Reservoirs of Lower Cambrian microbial carbonates,Tarim Basin,NW China[J].Petroleum Exploration and Development,2014,41(4):404-413.
[27]	沈安江,郑剑锋,陈永权,等.塔里木盆地中下寒武统白云岩储集层特征、成因及分布[J].石油勘探与开发,2016,43(3):340-349. Shen Anjiang,Zheng Jianfeng,Chen Yongquan,et al.Characteristics,origin and distribution of dolomite reservoirs in Lower-Middle Cambrian,Tarim Basin,NW China[J].Petroleum Exploration and Development,2016,43(3):340-349.
[28]	范明,胡凯,蒋小琼,等.酸性流体对碳酸盐岩储层的改造作用[J].地球化学,2009,38(1):20-26. Fan Ming,Hu Kai,Jiang Xiaoqiong,et al.Effect of acid fluid on carbonate reservoir reconstruction[J].Geochimica,2009,38(1):20-26.
[29]	黄康俊,王炜,鲍征宇,等.埋藏有机酸性流体对四川盆地东北部飞仙关组储层的溶蚀改造作用:溶解动力学实验研究[J].地球化学,2011,40(3):289-300. Huang Kangjun,Wang Wei,Bao Zhengyu,et al.Dissolution and alteration of Feixianguan Formation in the Sichuan Basin by organic acid fluids under burial condition:Kinetic dissolution experi-ments[J].Geochimica,2011,40(3):289-300.
[30]	蔡春芳,邱利瑞.塔里木盆地油田水有机配合物的模拟计算[J].新疆石油地质,1998,19(1):32-34. Cai Chunfang,Qiu Lirui.Simulation and calculation of organic complex compound in oilfield water,Tarim Basin[J].Xinjiang Petroleum Geology,1998,19(1):32-34.
[31]	Smith Jr L B.Origin and reservoir characteristics of Upper Ordovician Trenton-Black River hydrothermal dolomite reservoirs in New York[J].AAPG Bulletin,2006,90(11):1691-1718.
[32]	郑剑锋,沈安江,潘文庆,等.塔里木盆地下古生界热液白云岩储层的主控因素及识别特征[J].海相油气地质,2011,16(4):47-56. Zheng Jianfeng,Shen Anjiang,Pan Wenqing,et al.Key contro-lling factors and identification characteristics of Lower Paleozoic hydrothermal dolostone reservoirs in Tarim Basin[J].Marine Origin Petroleum Geology,2011,16(4):47-56.