基于储层构型的流动单元渗流屏障级次研究
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摘要
随着国内外各类储层构型研究的深入,储层构型理论趋于成熟,但对于研究成果的运用一直很薄弱。在典型辫状河储集层构型研究的基础上,以A油田辫状河储集层为例,将辫状河储集层划分成辫状河道、心滩坝、落淤层、坝上沟道等构型要素,分析总结了辫状河储集层渗流屏障与连通体的确定原则与方法,以期直观指导油气田开发。研究表明,渗流屏障与连通体的识别,能将油藏开发前期静态构型模型与油藏开发后的动态流动单元类型联系起来,不同级别的渗漏屏障限制不同类型的流动单元,渗流屏障的发育直接影响周围流动单元的类型,从而影响油藏流体运动规律。
With more in-depth investigations on various reservoir architectures, the theories of reservoir architectures have become increasingly mature, but application of the research results remains lagging. In this study, based on existing research on the architecture of typical braided stream reservoirs, a braided stream reservoir in the A Oilfield is divided into various architectural elements, such as the braided channels, mid-channel bars, silt layers, and troughs on bars. Criteria and methods for recognizing the seepage barriers and the connected bodies of braided stream reservoirs are analyzed and summarized, in order to provide intuitive guidance for oil and gas field exploration. The results reveal that the recognition of seepage barriers and the connected bodies establishes a linkage between the static architectural model at the pre-exploration stage and the dynamic classification of flow units at the exploration stage of oil reservoirs. Different classes of seepage barriers constrain different types of flow units. The development of seepage barriers directly impacts the types of the surrounding flow units and, thereby,affects the fluid movement pattern in the oil reservoir.
With more in-depth investigations on various reservoir architectures, the theories of reservoir architectures have become increasingly mature, but application of the research results remains lagging. In this study, based on existing research on the architecture of typical braided stream reservoirs, a braided stream reservoir in the A Oilfield is divided into various architectural elements, such as the braided channels, mid-channel bars, silt layers, and troughs on bars. Criteria and methods for recognizing the seepage barriers and the connected bodies of braided stream reservoirs are analyzed and summarized, in order to provide intuitive guidance for oil and gas field exploration. The results reveal that the recognition of seepage barriers and the connected bodies establishes a linkage between the static architectural model at the pre-exploration stage and the dynamic classification of flow units at the exploration stage of oil reservoirs. Different classes of seepage barriers constrain different types of flow units. The development of seepage barriers directly impacts the types of the surrounding flow units and, thereby,affects the fluid movement pattern in the oil reservoir.
引文
[1]林煜,吴胜和,王星,等.深水浊积水道体系构型模式研究——以西非尼日尔三角洲盆地某深水研究区为例[J].地质论评,2013, 59(3):510-520. doi:10.3969/-j.issn.0371-5736.2013.03.011LIN Yu, WU Shenghe, WANG Xing, et al. Research on architecture model of deepwater turbidity channel system:A case study of a deepwater research area in Niger Delta Basin, West Africa[J]. Geological Review, 2013, 59(3):510-520. doi:10.3969/j.issn.0371-5736.2013.03.011
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[6] HEARN C, EBANKS W J, TYE R S, et al. Geological factors influencing reservoir performance of Hartog Draw Field, Wyoming[J]. Journal of Canadian Petroleum Technology, 1984, 36(9):1335-1344.
[7] EBANKS W J Jr. Flow unit concept-integrated approach to reservoir description for engineering projects[J]. AAPG Bulletin, 1987, 71(5):551-552.
[8]万琼华,吴胜和,陈亮,等.基于深水浊积水道构型的流动单元分布规律[J].石油与天然气地质,2015,36(2):306-313. doi:10.11743/ogg20150216WAN Qionghua, WU Shenghe, CHEN Liang, et al. Analysis of flow unit distribution based on architecture of deep-water turbidite channel systems[J]. Oil&Gas Geology,2015,36(2):306-313. doi:10.11743/ogg20150216
[9]万琼华,吴胜和,王石,等.深水浊积水道储层多参数流动单元划分方法及其分布规律研究[J].高校地质学报,2014, 20(2):317-323. doi:10.3969/j.issn.1006-7493.2014.02.017WAN Qionghua, WU Shenghe, WANG Shi, et al. Multiparameter technology on the study of flow units division and their distribution in deepwater turbidity channel reservoir[J]. Geological Journal of China Universities, 2014, 20(2):317-323. doi:10.3969/j.issn.1006-7493.2014.02.017
[10]吴胜和,王仲林.陆相储层流动单元研究的新思路[J].沉积学报,1999, 17(2):252-257. doi:10.3969/-j.issn.1000-0550.1999.02.015WU Shenghe, WANG Zhonglin. The new way of thinking in terrestrial facies of reservoir flow units[J]. Acta Sedimentologica Sinica, 1999, 17(2):252-257. doi:10.3969/-j.issn.1000-0550.1999.02.015
[11] LYNDS R, HAJEK E. Conceptual model for predicting mudstone dimensions in sandy braided-river reservoirs[J].AAPG Bulletin, 2006, 90(8):1273-1288.
[12] RICHARD U RICHARD R J. Characterization of fluvial architectural elements using a three-dimensional outcrop dataset:Escanilla braided system, South-Central Pyrenees,Spain[J], Geosphere, 2007, 3(4):1-13.
[13] MIALL A D. Hierarchies of architectural units in terrigenous clastic rocks, and their relationship to sedimentation rate[J]. Concepts in Sedimentology&Paleontology,1992(3):6-12.
[14] MIALL A D. The geology of fluvial deposits:Sedimentary facies, basin analysis and petroleum geology[M]. New York:Springer-Verlag, 1996.
[15] GIBLING M R. Width and thickness of fluvial channel bodies and valley fills in the geological record:A literature compilation and classification[J]. Journal of Sedimentary Research, 2006, 76(5):731-771. doi:10.2110/jsr.2006.-060
[16] MIALL A D. Reconstructing the architecture and sequence stratigraphy of the preserved fluvial record as a tool for reservoir develop-ment:A reality check[J]. AAPG Bulletin, 2006, 90(7):989-1002.
[17]吴胜和.储层表征与建模[M].北京:石油工业出版社,2010:228-234.
[18]陈玉琨,吴胜和,毛平,等.砂质辫状河储集层构型表征——以大港油区羊三木油田馆陶组为例[J].新疆石油地质,2012, 33(5):523-526.CHEN Yukun, WU Shenghe, MAO Ping, et al. Characterization of sandy braided river reservoir configuration:Anexample from Guantao Formation in Yangsanmu Oilfield,Dagang oil region[J]. Xinjiang Petroleum Geology. 2012,33(5):523-526.
[19]廖保方,张为民,李列,等.辫状河现代沉积研究与相模式——中国永定河剖析[J].沉积学报,1998, 16(1):34-39, 50.LIAO Baofanga ZHANG Weimin, LI Lie, et al. Study on modern deposit of a braided stream and facies model:Taking the Yongding River as example[J]. Acta Sedimentologica Sinica,1998.16(1):34-39, 50.
[20]王石,万琼华,陈玉琨,等.基于辫状河储层构型的流动单元划分及其分布规律[J].油气地质与采收率,2015,22(5):47-51. doi:10.3969/j.issn.1009-9603.-2015.05.008WANG Shi.WAN Qionghua,CHEN Yukun, et al. Flow units division and their distribution law based on braided river reservoir architecture[J]. Petroleum Geology and Recovery Efficiencyv 2015.22(5):47-51. doi:10.3969/j.-issn. 1009-9603.2015.05.008
[2] MIALL A D. Architectural-element analysis:A new method of facies analysis applied to fluvial deposits[J]. Earth Science Reviews, 1985.22:261-308. doi:10.1016/0012-8252(85)90001-7
[3]吴胜和,岳大力,刘建民,等.地下古河道储层构型的层次建模研究[J].中国科学(D辑:地球科学),2008,38(S1):111-120.WU Shenghe, YUE Dali, LIU Jianmin, et al. Hirearchical modeling of paleochannel reservoir architecture[J]. Science in China(Series D), 2008, 38(S1):111-121.
[4]岳大力,吴胜和,刘建民.曲流河点坝地下储层构型精细解剖方法[J].石油学报,2007, 28(4):99-103. doi:10.3321/j.issn:0253-2697.2007.04.020YUE Dali, WU Shenghe, LIU Jianmin. An accurate method for anatomizing architecture of subsurface reservoir in point bar of meandering river[J]. Acta Petrolei Sinica, 2007, 28(4):99-103. doi:10.3321/j.issn:0253-2697.2007.04.020
[5]刘钰铭,侯加根,王连敏,等.辫状河储层构型分析[J].中国石油大学学报(自然科学版),2009, 33(1):7-11.doi:10.3321/j.issn:1673-5005.2009.01.002LIU Yuming, HOU Jiagen, WANG Lianmin, et al. Architecture analysis of braided river reservoir[J]. Journal of the China University of Petroleum(Edition of Natural Science), 2009, 33(1):7-11. doi:10.3321/j.issn:1673-5005.2009.01.002
[6] HEARN C, EBANKS W J, TYE R S, et al. Geological factors influencing reservoir performance of Hartog Draw Field, Wyoming[J]. Journal of Canadian Petroleum Technology, 1984, 36(9):1335-1344.
[7] EBANKS W J Jr. Flow unit concept-integrated approach to reservoir description for engineering projects[J]. AAPG Bulletin, 1987, 71(5):551-552.
[8]万琼华,吴胜和,陈亮,等.基于深水浊积水道构型的流动单元分布规律[J].石油与天然气地质,2015,36(2):306-313. doi:10.11743/ogg20150216WAN Qionghua, WU Shenghe, CHEN Liang, et al. Analysis of flow unit distribution based on architecture of deep-water turbidite channel systems[J]. Oil&Gas Geology,2015,36(2):306-313. doi:10.11743/ogg20150216
[9]万琼华,吴胜和,王石,等.深水浊积水道储层多参数流动单元划分方法及其分布规律研究[J].高校地质学报,2014, 20(2):317-323. doi:10.3969/j.issn.1006-7493.2014.02.017WAN Qionghua, WU Shenghe, WANG Shi, et al. Multiparameter technology on the study of flow units division and their distribution in deepwater turbidity channel reservoir[J]. Geological Journal of China Universities, 2014, 20(2):317-323. doi:10.3969/j.issn.1006-7493.2014.02.017
[10]吴胜和,王仲林.陆相储层流动单元研究的新思路[J].沉积学报,1999, 17(2):252-257. doi:10.3969/-j.issn.1000-0550.1999.02.015WU Shenghe, WANG Zhonglin. The new way of thinking in terrestrial facies of reservoir flow units[J]. Acta Sedimentologica Sinica, 1999, 17(2):252-257. doi:10.3969/-j.issn.1000-0550.1999.02.015
[11] LYNDS R, HAJEK E. Conceptual model for predicting mudstone dimensions in sandy braided-river reservoirs[J].AAPG Bulletin, 2006, 90(8):1273-1288.
[12] RICHARD U RICHARD R J. Characterization of fluvial architectural elements using a three-dimensional outcrop dataset:Escanilla braided system, South-Central Pyrenees,Spain[J], Geosphere, 2007, 3(4):1-13.
[13] MIALL A D. Hierarchies of architectural units in terrigenous clastic rocks, and their relationship to sedimentation rate[J]. Concepts in Sedimentology&Paleontology,1992(3):6-12.
[14] MIALL A D. The geology of fluvial deposits:Sedimentary facies, basin analysis and petroleum geology[M]. New York:Springer-Verlag, 1996.
[15] GIBLING M R. Width and thickness of fluvial channel bodies and valley fills in the geological record:A literature compilation and classification[J]. Journal of Sedimentary Research, 2006, 76(5):731-771. doi:10.2110/jsr.2006.-060
[16] MIALL A D. Reconstructing the architecture and sequence stratigraphy of the preserved fluvial record as a tool for reservoir develop-ment:A reality check[J]. AAPG Bulletin, 2006, 90(7):989-1002.
[17]吴胜和.储层表征与建模[M].北京:石油工业出版社,2010:228-234.
[18]陈玉琨,吴胜和,毛平,等.砂质辫状河储集层构型表征——以大港油区羊三木油田馆陶组为例[J].新疆石油地质,2012, 33(5):523-526.CHEN Yukun, WU Shenghe, MAO Ping, et al. Characterization of sandy braided river reservoir configuration:Anexample from Guantao Formation in Yangsanmu Oilfield,Dagang oil region[J]. Xinjiang Petroleum Geology. 2012,33(5):523-526.
[19]廖保方,张为民,李列,等.辫状河现代沉积研究与相模式——中国永定河剖析[J].沉积学报,1998, 16(1):34-39, 50.LIAO Baofanga ZHANG Weimin, LI Lie, et al. Study on modern deposit of a braided stream and facies model:Taking the Yongding River as example[J]. Acta Sedimentologica Sinica,1998.16(1):34-39, 50.
[20]王石,万琼华,陈玉琨,等.基于辫状河储层构型的流动单元划分及其分布规律[J].油气地质与采收率,2015,22(5):47-51. doi:10.3969/j.issn.1009-9603.-2015.05.008WANG Shi.WAN Qionghua,CHEN Yukun, et al. Flow units division and their distribution law based on braided river reservoir architecture[J]. Petroleum Geology and Recovery Efficiencyv 2015.22(5):47-51. doi:10.3969/j.-issn. 1009-9603.2015.05.008