沉积微相对超深储层岩石力学性质的影响及其应用——以塔里木盆地库车坳陷BZ气田白垩系为例

王志民; 孙海涛; 张辉; 王晨光; 尹国庆; 徐珂; 钟大康

沉积微相对超深储层岩石力学性质的影响及其应用——以塔里木盆地库车坳陷BZ气田白垩系为例

王志民¹,
孙海涛^2,3, ,,
张辉¹,
王晨光^2,3,
尹国庆¹,
徐珂¹,
钟大康^2,3

1. 中国石油塔里木油田分公司勘探开发研究院, 新疆库尔勒 841000;
2. 中国石油大学(北京) 地球科学学院, 北京 102249;
3. 中国石油大学(北京) 油气资源与探测国家重点实验室, 北京 102249

基金项目:

中国石油天然气股份有限公司科技专项(2023ZZ14YJ03)资助。

详细信息

作者简介:
王志民(1988-),男,硕士,工程师,从事地质资源与地质工程研究。E-mail:wangzhm-tlm@petrochina.com.cn。

通讯作者:
孙海涛(1985-),男,博士,副教授,从事沉积岩石学方面的研究。E-mail:haitao.sun@cup.edu.cn。

中图分类号: TE122.23
计量
- 文章访问数: 243
- HTML全文浏览量: 34
- PDF下载量: 9
- 被引次数: 0
出版历程
- 收稿日期: 2023-12-01
- 网络出版日期: 2023-12-21

Influence of sedimentary microfacies on mechanical properties of ultradeep reservoir rocks and its application:a case study of Cretaceous in BZ gas field of Kuqa Depression, Tarim Basin

1. Tarim Oilfield Branch Company, CNPC, Kurla, Xinjiang 841000, China;
2. College of Geosciences, China University of Petroleum(Beijing), Beijing 102249, China;
3. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum(Beijing), Beijing 102249, China

摘要

摘要:
为了优选塔里木盆地库车坳陷白垩系超深致密砂岩储层单井天然裂缝发育的甜点层段,利用露头、岩石薄片、成像测井等资料系统分析了BZ气田不同沉积微相的储层岩石力学性质差异,并结合相关露头中不同沉积微相的几何参数模型,提出了一种优化储层岩石力学参数模型的方法,提高了井筒周围(<200 m)天然裂缝预测精度。研究结果表明:(1) BZ气田白垩系巴什基奇克组三段不同沉积微相、相同微相不同位置的储层中,岩石组构和岩石组合(包括碎屑含量、杂基含量、粒度分选、砂地比和砂泥岩组合等)具有差异,从而影响了储层的泊松比和杨氏模量,不同微相储层具有不同的岩石力学参数。(2)不同沉积微相砂体的裂缝发育程度有所差异,扇三角洲前缘水下分支河道砂岩的裂缝最发育,比扇三角洲前缘支流间湾微相及扇三角洲平原分支河道微相更容易形成裂缝。(3)进一步根据露头中沉积微相几何参数,建立不同微相的三维模型,即可建立和优化井筒周围的沉积微相模型及岩石力学参数模型,并应用到井筒周围的裂缝预测中。
- 裂缝预测 /
- 储层地质力学 /
- 沉积微相 /
- 致密砂岩 /
- 超深储层 /
- 塔里木盆地
Abstract:
In order to optimize the sweet spot intervals with natural fractures in the well of Cretaceous ultra-deep tight sandstone reservoirs in the Kuqa Depression of Tarim Basin, the difference of reservoir rock mechanical properties of different sedimentary microfacies in BZ gas field was systematically analyzed by using outcrop, rock slice, imaging logging and other data. Then the geometric parameter models of different sedimentary microfacies in related outcrops were combined to propose a new method to optimize the reservoir rock mechanical parameter model, which improved the prediction accuracy of natural fractures around the wellbore (< 200 m). This research indicates that:(1) There are differences in reservoir rock fabrics and rock combinations (including debris content, matrix content, grain sorting, sand ratio, and sandstone-mudstone combination) among various sedimentary microfacies and different parts of the same microfacies, which affects the Poisson's ratio and Young's modulus of the third member of Bashijiqike Formation in BZ gas field. (2) The degree of crack development varies among different sedimentary microfacies of sand bodies, with the sandstone in the underwater branch channel of fan delta front being the most developed, making it easier to form cracks than the inter bay microfacies of fan delta front and the branch channel microfacies of fan delta plain. (3) So we conclude that different microfacies reservoirs have different rock mechanical parameters. Furthermore, a three-dimensional microfacies model was established based on the geometric parameters of sedimentary microfacies in outcrops and was used to optimize sedimentary microfacies models and rock mechanics parameter models around wellbores, which were applied to fracture prediction around wellbores.
- fracture prediction /
- reservoir geomechanics /
- sedimentary microfacies /
- tight sandstone /
- ultra-deep reservoir /
- Tarim Basin

HTML全文

参考文献(29)

[1]	杨海军,李勇,唐雁刚,等.塔里木盆地克拉苏盐下深层大气田的发现[J].新疆石油地质,2019,40(1):12-20. YANG Haijun,LI Yong,TANG Yan'gang,et al.Discovery of Kelasu subsalt deep large gas field,Tarim basin[J].Xinjiang Petroleum Geology,2019,40(1):12-20.
[2]	张辉,尹国庆,王海应.塔里木盆地库车坳陷天然裂缝地质力学响应对气井产能的影响[J].天然气地球科学,2019,30(3):379-388. ZHANG Hui,YIN Guoqing,WANG Haiying.Effects of natural fractures geomechanical response on gas well productivity in Kuqa Depression, Tarim Basin[J].Natural Gas Geoscience,2019,30(3):379-388.
[3]	梁顺军,彭更新,杨洪德,等.库车与川东高陡复杂构造地震勘探的可比性[J].中国石油勘探,2005,10(5):28-35. LIANG Shunjun,PENG Gengxin,YANG Hongde,et al.Comparison of seismic exploration for steep-dipping complex structure in Kuqa area with eastern Sichuan area[J].China Petroleum Exploration,2005,10(5):28-35.
[4]	王珂,张荣虎,曾庆鲁,等.库车坳陷博孜-大北地区下白垩统深层-超深层储层特征及成因机制[J].中国矿业大学学报,2022,51(2):311-328. WANG Ke,ZHANG Ronghu,ZENG Qinglu,et al.Characteristics and formation mechanism of Lower Cretaceous deep and ultra-deep reservoir in Bozi-Dabei area,Kuqa depression[J].Journal of China University of Mining&Technology,2022,51(2):311-328.
[5]	施辉,罗晓容,王宗秀,等.库车坳陷克深地区超深层致密砂岩储层裂缝非均一性发育机理[J].地质论评, 2020,66(S1):109-111. SHI Hui,LUO Xiaorong,WANG Zongxiu,et al.The heterogeneous forming mechanism of structural fractures in the deep-buried tight sandstones of Keshen area,Kuqa depression[J].Geological Review,2020,66(S1):109-111.
[6]	张荣虎,王珂,王俊鹏,等.塔里木盆地库车坳陷克深构造带克深8区块裂缝性低孔砂岩储层地质模型[J].天然气地球科学,2018, 29(9):1264-1273. ZHANG Ronghu,WANG Ke,WANG Junpeng,et al.Reservoir geological model of fracture low porosity sandstone of Keshen 8 wellblock in Kuqa Depression, Tarim Basin[J].Natural Gas Geoscience,2018,29(9):1264-1273..
[7]	付小涛,王益民,邵剑波,等.超深层裂缝性致密砂岩储层砂体、裂缝发育特征及对产能的影响:以塔里木盆地库车坳陷KS2气田为例[J].现代地质,2021,35(02):326-337. FU Xiaotao,WANG Yimin,SHAO Jianbo,et al.Characteristics and Effect on Productivity of the Sandstone and Fractures in Ultradeep and Fractured Tight Sandstone Gas Reservoirs:a Case Study of KS2 Gasfield in Kuqa Depression,Tarim Basin[J].Geoscience,2021,35(2):326-337.
[8]	杨海军,张荣虎,杨宪彰,等.超深层致密砂岩构造裂缝特征及其对储层的改造作用:以塔里木盆地库车坳陷克深气田白垩系为例[J].天然气地球科学,2018,29(7):942-950. YANG Haijun,ZHANG Ronghu,YANG Xianzhang,et al.Characteristics and reservoir improvement effect of structural fracture in ultra-deep tight sandstone reservoir:a case study of Keshen Gasfield,Kuqa Depression,Tarim Basin[J].Natural Gas Geoscience,2018,29(7):942-950.
[9]	史超群,王佐涛,朱文慧,等.塔里木盆地库车坳陷克拉苏构造带大北地区超深储层裂缝特征及其对储层控制作用[J].天然气地球科学,2020,31(12):1687-1699. SHI Chaoqun,WANG Zuotao,ZHU Wenhui,et al.Fracture characteristic and its impact on reservoir quality of ultra-deep reservoir in Dabei region, Kelasu tectonic belt, Kuqa Depression, Tarim Basin[J]. Natural Gas Geoscience,2020,31(12):1687-1699..
[10]	袁龙,信毅,吴思仪,等.深层白垩系致密砂岩裂缝定性识别、参数建模与控制因素分析:以塔里木盆地库车坳陷克深地区白垩系巴什基奇克组储层为例[J].东北石油大学学报, 2021,45(1):20-31. YUAN Long,XIN Yi,WU Siyi,et al.Research on qualitative identification,parameter modeling and control factors of cracks in deep Cretaceous tight sandstone:taking the Cretaceous Bashijiqike Formation reservoir in Keshen Area,Kuqa Depression,Tarim Basin as an example[J].Journal of Northeast Petroleum University,2021,45(1):20-31
[11]	王珂,张荣虎,王俊鹏,等.超深层致密砂岩储层构造裂缝分布特征及其成因:以塔里木盆地库车前陆冲断带克深气田为例J].石油与天然气地质,2021,42(2):338-353. WANG Ke,ZHANG Ronghu,WANG Junpeng,et al.Distribution and origin of tectonic fractures in ultra deep tight sandstone reservoirs:a case study of Keshen gas field,Kuqa foreland thrust belt,Tarim Basin[J].Oil&Gas Geology,2021,42(2):338-353.
[12]	江同文,张辉,徐珂,等.克深气田储层地质力学特征及其对开发的影响[J].西南石油大学学报(自然科学版),2020,42(4):1-12. JIANG Tongwen,ZHANG Hui,XU Ke,et al.Reservoir Geomechanical Characteristics and the Influence on Development in Keshen Gas Field[J].Journal of Southwest Petroleum University (Science&Technology Edition),2020,42(4):1-12.
[13]	Madhur,Johri,Mark D, et al.A scaling law to characterize fault-damage zones at reservoir depths[J].AAPG Bulletin, 2014.DOI: 10.1306/05061413173.
[14]	GENSTERBLUM Y,GHANIZADEH A,CUSS R J,et al.Gas transport and storage capacity in shale gas reservoirs-A review.Part A:Transport processes[J].Journal of Unconventional Oil and Gas Resources, 2015,12:87-122.
[15]	ZOBACK M D.Reservoir Geomechanics[M].Reservoir Geomechanics,2007.
[16]	ITO T,ZOBACK M D,PESKA P.Utilization of Mud Weights in Excess of the Least Principal Stress to Stabilize Wellbores:Theory and Practical Examples[J].Spe Drilling&Completion, 2001,16(4):221-229.
[17]	ZOBACK M D,BARTON C A,BRUDY M,et al.Determination of stress orientation and magnitude in deep wells[J].International Journal of Rock Mechanics&Mining Sciences, 2003,40(7/8):1049-1076.
[18]	ZOBACK M.Stratigraphically Controlled Stress Variations at the Hydraulic Fracture Test Site-1 in the Midland Basin,TX[J].Energies,2021,14.
[19]	LOURDES B,COLMENARES,MARK D,et al.Hydraulic fracturing and wellbore completion of coalbed methane wells in the Powder River Basin,Wyoming:Implications for water and gas production[J].AAPG Bulletin,2007,91(1):51-67.
[20]	张辉,杨海军,尹国庆,等.地质工程一体化关键技术在克拉苏构造带高效开发中的应用实践[J].中国石油勘探,2020,25(2):120-132. ZHANG Hui,YANG Haijun,YIN Guoqing,et al.Application practice of key technologies of geology-engineering integration for efficient development in the Kelasu structural belt,Tarim Basin[J].China Petroleum Exploration,2020,25(2):120-132.
[21]	徐珂,田军,杨海军,等.深层致密砂岩储层现今地应力场预测及应用:以塔里木盆地克拉苏构造带克深10气藏为例[J].中国矿业大学学报,2020,49(4):708-720. XU Ke,TIAN Jun,YANG Haijun,et al.Prediction of current in-situ stress filed and its application of deeply buried tight sandstone reservoir:A case study of Keshen 10 gas reservoir in Kelasu structural belt,Tarim Basin[J].Journal of China University of Mining&Technology,2020,49(4):708-720.
[22]	江同文,张辉,徐珂,等.超深层裂缝型储层最佳井眼轨迹量化优选技术与实践:以克拉苏构造带博孜A气藏为例[J].中国石油勘探,2021,26(4):149-161. JIANG Tongwen,ZHANG Hui,XU Ke,et al.Technology and practice of quantitative optimization of borehole trajectory in ultra deep fractured reservoir:a case study of Bozi A gas reservoir in Kelasu structural belt,Tarim Basin[J].China Petroleum Exploration,2021,26(4):149-161.
[23]	杨海军,张辉,尹国庆,等.基于地质力学的地质工程一体化助推缝洞型碳酸盐岩高效勘探:以塔里木盆地塔北隆起南缘跃满西区块为例[J].中国石油勘探,2018,23(2):27-36. YANG Haijun,ZHANG Hui,YIN Guoqing,et al.Geomechanics-based geology-engineering integration boosting high-efficiency exploration of fractured-vuggy carbonate reservoirs:a case study on West Yueman block,northern Tarim Basin[J].China Petroleum Exploration,2018,23(2):27-36.
[24]	张杨,王振兰,范文同,等.基于裂缝精细评价和力学活动性分析的储层改造方案优选及其在博孜区块的应用[J].中国石油勘探,2017,22(6):47-58. ZHANG Yang,WANG Zhenlan,FAN Wentong,et al.Optimization of reservoir stimulation scheme based on fine fracture evaluation and mechanical activity analysis and its application in Bozi block[J].China Petroleum Exploration,2017,22(6):47-58.
[25]	田军杨海军,吴超,等.博孜9井的发现与塔里木盆地超深层天然气勘探潜力[J].天然气工业, 2020,40(1):11-19. TIAN Jun,YANG Haijun,WU Chao,et al.Discovery of Well Bozi 9 and ultra-deep natural gas exploration potential in the Kelasu tectonic zone of the Tarim Basin[J].Natural Gas Industry,2020,40(1):11-19.
[26]	徐珂,杨海军,张辉,等.克拉苏构造带博孜1气藏现今地应力场和高效开发[J].新疆石油地质, 2021, 42(6):726-734. XU Ke, YANG Haijun, ZHANG Hui,et al.Current in-situ stress field and efficient development of Bozi-1 gas reservoir in Kelasu structural belt[J].Xinjiang Petroleum Geology, 2021, 42(6):726-734.
[27]	徐珂,张辉,鞠玮,等.库车坳陷博孜X区块超深储层有效裂缝分布规律及对天然气产能的影响[J].地球科学, 2023,48(7):2489-2505. XU Ke,ZHANG Hui,JU Wei,et al.Effective Fracture Distribution and Its Influence on Natural Gas Productivity of Ultra-Deep Reservoir in Bozi-X Block of Kuqa Depression[J].Earth Science,2023,48(7):2489-2505.
[28]	徐珂,田军,杨海军,等.塔里木盆地库车坳陷超深层现今地应力对储层品质的影响及实践应用[J].天然气地球科学,2022,33(1):13-23. XU Ke,TIAN Jun,YANG Haijun,et al.Effects and practical applications of present-day in-situ stress on reservoir quality in ultra-deep layers of Kuqa Depression, Tarim Basin[J].Natural Gas Geoscience,2022,33(1):13-23..
[29]	郎晓玲郭召杰.基于DFN离散裂缝网络模型的裂缝性储层建模方法[J].北京大学学报(自然科学版),2013,49(6):964-972. LANG Xiaoling,GUO Zhaojie.Fractured Reservoir Modeling Method Based on Discrete Fracture Network Model[J].Acta Scientiarum Naturalium Universitatis Pekinensis, 2013,49(6):964-972.