Reservoir classification and evaluation based on petrophysical facies:A case study on the pay set Ⅱ in Member 3 of Eocene Liushagang Formation in eastern Wushi sag,Beibu Wan Basin
Zeng Xiaoming, Zhang Hui, Zou Mingsheng, Huang Dongmei, Mo Fengyang
Zhanjiang Branch of CNOOC, Zhanjiang 524057,Guangdong
Abstract：Currently, most of the reservoir classification are based on the physical characteristics of reservoirs,rather than genetic mechanism. Take the pay set Ⅱ in Member 3 of Eocene Liushagang Formation as the study object,the sedimentary characteristics,diagenesis and tectonic features were studied to analyse their influences on the physical properties of reservoirs based on the analysis of assaying,drlling,logging and testing data. The results showed that subaqueous distributary channel of the inner and outer fan delta front,sheet sands were developped in the Member 3 of Liushagang Formation in eastern Wushi sag,Beibu Wan Basin;three types of diagenetic facies, mud matrix filling,unstable components dissolution and strong compaction, were identified;the fracture facies were mainly composed of none fracture facies,with network fractures and high-angle fractures appeared partially in layers. Then the petrophysical facies can be classified through the superimpositions and coupling of the sedimentary facies,diagenetic facies and tectonic facies. Nine types of petrophysical facies such as underwater distributary channel of the inner fan delta front-mud matrix filling-high angle fracture were divided in this way. Three types of reservoirs—good reservoir class Ⅰ, intermediate reservoir class Ⅱ and poor reservoir class Ⅲ,were classified based on the characteristics of different types of petrophysical facies,which realized the classification and evaluation of reservoirs from the perspective of genetic mechanism.
Zeng Xiaoming,Zhang Hui,Zou Mingsheng et al. Reservoir classification and evaluation based on petrophysical facies:A case study on the pay set Ⅱ in Member 3 of Eocene Liushagang Formation in eastern Wushi sag,Beibu Wan Basin[J]. JOPC, 2017, 19(4): 703-712.
1 操应长,葸克来,王健,远光辉,杨田. 2011. 砂岩机械压实与物性演化成岩模拟实验初探. 现代地质,25(6): 1152-1158. [Cao Y C,Xi K L,Wang J,Yuan G H,Yang T. 2011. Preliminary discussion of simulation experiments on the mechanical compaction and physical property evolution of sandstones. Geoscience,25(6): 1152-1158] 2 程会明,王端平,夏冰. 2002. 胜坨油田特高含水期储集层岩石物理相研究. 石油大学学报(自然科学版),26(5): 15-18. [Cheng H M,Wang D P,Xia B. 2002. Analysis on petrophysical facies of reservoir in Shengtuo oil field with a special high water cut. Journal of the University of Petroleum(Edition of Natural Science),26(5): 15-18] 3 郭燕华,熊琦华,吴胜和,周平兵. 2000. 吐哈盆地中侏罗统储集层岩石物理相研究: 以葡北—胜北—连木沁地区为例. 新疆石油地质,21(1): 50-53. [Guo Y H,Xiong Q H,Wu S H,Zhou P B. 2000. Study on petrophysical facies of middle Jurassic reservoir in Turpan-hami basin: An example from Pubei-Shengbei-Lianmuqin area. Xinjiang Petroleum Geology,21(1): 50-53] 4 胡德胜,邓勇,张建新,左倩媚,何卫军. 2016. 乌石凹陷东区古近系断裂系统与油气成藏. 西南石油大学学报(自然科学版),38(4): 27-36. [Hu D S,Deng Y,Zhang J X,Zuo Q M,He W J. 2016. Palaeogene fault system and hydrocarbon accumulation in east Wushi sag. Journal of Southwest Petroleum University(Science & Technology Edition),38(4): 27-36] 5 黄薇,梁江平,赵波,孙国昕,杨庆杰. 2013. 松辽盆地北部白垩系泉头组扶余油层致密油成藏主控因素. 古地理学报,15(5): 635-644. [Huang W,Liang J P,Zhao B,Sun G X,Yang Q J. 2013. Main controlling factors of tight oil accumulations in the Fuyu Layer of Cretaceous Quantou Formation in northern Songliao Basin. Journal of Palaeogeography(Chinese Edition),15(5): 635-644] 6 纪友亮,高崇龙,刘玉瑞,卢欢. 2015. 高邮凹陷阜一段油气充注对储集层物性演化的影响. 同济大学学报(自然科学版),43(1): 133-139. [Ji Y L,Gao C L,Liu X R,Lu H. 2015. Influence of hydrocarbon Charging to the reservoir property in 1st Member of Funning Formation in Gaoyou depression. Journal of Tongji University(Natural Science),43(1): 133-139] 7 贾爽,李宏涛,肖开华. 2014. 元坝地区须二段下亚段储集层特征及优质储集层主控因素. 东北石油大学学报,38(5): 15-22. [Jia S,Li H T,Xiao K H. 2014. Reservoir characteristics and main controlling factors of high quality reservoir in the lower 2th member of Xujiahe formation in Yuanba area. Journal of Northeast Petroleum University,38(5): 15-22] 8 赖锦,王贵文,陈敏,王书南,柴毓,蔡超,张永辰,李鉴伦. 2013. 基于岩石物理相的储集层孔隙结构分类评价: 以鄂尔多斯盆地姬塬地区长8油层组为例. 石油勘探与开发,40(5): 566-573. [Lai J,Wang G W,Chen M,Wang S N,Chai Y,Cai C,Zhang Y C,Li J L. 2013. Pore structures evaluation of low permeability clastic reservoirs based on petrophysical facies: A case study on Chang 8 reservoir in the Jiyuan region,Ordos Basin. Petroleum Exploration and Development,40(5): 566-573] 9 赖锦,王贵文,罗官幸,黄龙兴,赵显令,李洪楠,李梅,王迪. 2014. 基于岩石物理相约束的致密砂岩气储集层渗透率解释建模. 地球物理学进展,29(3): 1173-1182. [Lai J,Wang G W,Luo G X,Huang L X,Zhao X L,Li H N,Li M,Wang D. 2014. A fine logging interpretation model of permeability confined by petrophysical facies of tight gas sandstone reservoirs. Progress in Geophysics,29(3): 1173-1182] 10 赖锦,王贵文,郑新华,周磊,韩闯,吴大成,黄龙兴,罗官幸. 2015. 大北地区巴什基奇克组致密砂岩气储集层定量评价. 中南大学学报(自然科学版),46(6): 2285-2298. [Lai J,Wang G W,Zheng X H,Zhou L,Han C,Wu D C,Huang L X,Luo G X. 2015. Quantitative evaluation of tight gas sandstone reservoirs of Bashijiqike formation in Dabei gas field. Journal of Central South University(Science and Technology),46(6): 2285-2298] 11 柳永杰,赵志刚,李建红,徐建永. 2008. 乌石凹陷成藏组合划分及主控因素分析. 中国海上油气,20(2): 82-86. [Liu Y J,Zhao Z G,Li J H,Xu J Y. 2008. Hydrocarbon play division and major control analysis in Wushi sag,Beibuwan basin. China Offshore Oil and Gas,20(2): 82-86] 12 单祥,陈能贵,郭华军,唐勇,孟祥超,邹志文,徐洋. 2016. 基于岩石物理相的砂砾岩储集层分类评价: 以准噶尔盆地玛131井区块百二段为例. 沉积学报,34(1): 149-157. [Shan X,Chen N G,Guo H J,Tang Y,Meng X C,Zou Z W,Xu Y. 2016. Reservoir evaluation of sand-conglomerate reservoir based on peteophysical facies: A case study on Bai 2 reservoir in the Ma131 region,Junggar basin. Acta Sedimentologica Sinica,34(1): 149-157] 13 史基安,王琪. 1995. 影响碎屑岩天然气储集层物性的主要控制因素. 沉积学报,13(2): 128-139. [Shi J A,Wang Q. 1995. A dissscussion on main controlling factors on the properties of clsatic gas reservoirs. Acta Sedimentologica Sinica,13(2): 128-139] 14 宋子齐,景成,庞玉东,田新,张景皓. 2013. 基于岩石物理相分类确定致密储集层孔隙度: 以苏里格气田东区为例. 天然气工业,33(8): 31-37. [Song Z Q,Jing C,Pang Y D,Tian X,Zhang J H. 2013. Porosity estimation of tight reservoirs based on petrophysical facies classification: A case study from the east area of the Sulige Gas Field,Ordos Basin. Natural Gas Industry,33(8): 31-37] 15 谭成仟,王敏杰,段爱英,宋革生. 2002. 孤岛油田渤21断块砂岩油藏岩石物理相与剩余油分布规律研究. 测井技术,26(2): 127-130. [Tan C Q,Wang M J,Duan A Y,Song G S. 2002. Petrophysical facies of sandstone reservoir in Bo block 21 in Gudao oilfield and its remaining oil distribution. Well Logging Technology,26(2): 127-130] 16 熊琦华,彭仕宓,黄述旺,魏萍. 1994. 岩石物理相研究方法初探: 以辽河凹陷冷东—雷家地区为例. 石油学报,15(增刊): 68-75. [Xiong Q H,Peng S M,Huang S W,Wei P. 1994. A preliminary study of the new concept of petrophysical facies and its initial application in Lengdong-Leijia region in Liaohe depression. Acta Petrolei Sinca,15(Suppl.): 68-75] 17 杨宁,王贵文,赖锦,王书南,柴毓,吴恒,张永辰,赵显令. 2013. 岩石物理相的控制因素及其定量表征方法研究. 地质论评,59(3): 563-574. [Yang N,Wang G W,Lai J,Wang S N,Chai Y,Wu H,Zhang Y C,Zhao X L. 2013. Researches of the control factors and the quantitatively characterization method of reservoir petrophysical facies. Geological Review,59(3): 563-574] 18 姚光庆,赵彦超,张森龙. 1995. 新民油田低渗细粒储集砂岩岩石物理相研究. 地球科学,20(3): 355-360. [Yao G Q,Zhao Y C,Zhang S L. 1995. Petrophysical facies of low permeability and fine grain reservoir sandstones in Xinmin oilfield. Earth Scinece,20(3): 355-360] 19 尤丽,招湛杰,李才,吴仕玖,徐守立,刘才. 2015. 乌石凹陷流沙港组储集层特征与有利储集层分布. 东北石油大学学报,39(6): 95-101. [You L,Zhao Z J,Li C,Wu S J,Xu S L,Liu C. 2015. Reservoir physical properties and favorable reservoirs in Liushagang formation in Wushi sag. Journal of Northeast Petroleum University,39(6): 95-101] 20 曾小明,张辉,邹明生,于佳,莫冯阳,陈晓武. 2016a. 北部湾盆地乌石凹陷东区流三段物源分析及其对储集层物性的控制. 地质科技情报,35(6): 63-69. [Zeng X M,Zhang H,Zou M S,Yu J,Mo F Y,Chen X W. 2016. Provenance analysis and influence on reservoir physical property of the 3rd Member of Liushagang Formation in eastern Wushi Sag,Beibu Gulf Basin. Geological Science and Technology Information,35(6): 63-69] 21 曾小明,邹明生,张辉,于佳,陈晓武,莫冯阳. 2016b. 北部湾盆地乌石凹陷东区流沙港组三段储集层物性主控因素及分布规律. 石油实验地质,38(6): 757-764. [Zeng X M,Zou M S,Zhang H,Yu J,Chen X W,Mo F Y. 2016. Main controls on the distribution of the 3rd Member of Liushagang Formation in eastern Wushi Sag,Beibu Gulf Basin. Petroleum Geology & Experiment,38(6): 757-764] 22 朱世发,朱筱敏,鲜本忠,李德江. 2009. 准噶尔盆地西北缘克—百地区侏罗系储集层特征及主控因素分析. 古地理学报,11(6): 681-688. [Zhu S F,Zhu X M,Xian B Z,Li D J. 2009. Characteristics and main controlling factors of the Jurassic reservoir in Ke-Bai area,northwestern margin of Junggar Basin. Journal of Palaeogeography(Chinese Edition),11(6): 681-688] 23 Hammer E,Mork M B E,Næss A. 2010. Facies controls on the distribution of diagenesis and compaction in fluvial-deltaic deposits. Marine and Petroleum Geology,27(8): 1737-1751. 24 Lima R D,Ros L D. 2002. The role of depositional setting and diagenesis on the reservoir quality of Devonian sandstones from the solimões basin,Brazilian Amazonia. Marine and Petroleum Geology,19(9): 1047-1071. 25 Marchand A E,Smalley P C,Haszeldine R S,Fallick A E. 2002. Note on the importance of hydrocarbon fill for reservoir quality prediction in sandstones. AAPG Bulletin,86(9): 1561-1571. 26 Snjos S M,Ros L F,Souza R S,Silva C M,Sombra C L. 2000. Depositional and diagenetic controls on the reservoir quality of Lower Cretaceous Pendencia sandstones,Potiguar rift basin,Brazil. AAPG Bulletin,84(11): 1719-1742. 27 Spain D R. 1992. Petrophysical evaluation of a slope fan/basin-floor fan complex: Cherry Canyon Formation,Ward County,Texas. AAPG Bulletin,76(6): 805-827.
