Development model of Hercynian cave system in karst canyon area of Tahe Oilfield, Tarim Basin
Li Yuan1, 2, Lu Xinbian3, Cai Zhongxian2, Zhang Heng2, Liu Xianfeng4
1 Soil Fertilizer and Agricultural Water Saving Research Institute 。of Xinjiang Academy of Agricultural Sciences, Urümqi 830091,Xinjiang; 2 Faculty of Earth Resources,China University of Geosciences(Wuhan),Wuhan 430074,Hubei; 3 Research Institute of Petroleum Exploration & Production, Northwest Company, SINOPEC, Urümqi 830011,Xinjiang; 4 School of Geoscience, Yangtze University, Wuhan 430100,Hubei;
Abstract：Giant karst cave reservoir develop in the karst canyon area of Tahe Oilfield,with good explotation result. Through high resolution 3D seismic data,data of drilling and the seismic attributes extracting the karst cave system,palaeo-gemorphology and palaeo-drainage system were rebuilt. The karst development mechanism was discussed and the model of the karst cave were summarized as following: (1)Surface water has strong vertical erosion in upper reaches of the canyon,the canyon lost the drainage function and evolution into dry valley,hydrodynamic conditions in lower reaches of canyon is weaken. (2)Cave types divided into underground water caves,canyon-fault caves,underground water caves development in the upstream of canyon, underground caves and canyon are mapping relationship,canyon-fault caves development on both sides of the canyon,with multilayer characteristics in vertical. (3)With a comprehensive analysis of the karst cave genesis mechanism in the canyon area,we thought that the underground water cave development in an adequate water supply condition and strong vertical erosion of water,canyon-fault caves development in a multiple-stage drop of base level and fault systems. Combined with the characteristics of modern Enshi cave systems. evolutionary model of the karst cave in canyon are proposed,which provides a theoretical reference for further cave reservoir prediction and exploration practice.
Li Yuan,Lu Xinbian,Cai Zhongxian et al. Development model of Hercynian cave system in karst canyon area of Tahe Oilfield, Tarim Basin[J]. JOPC, 2017, 19(2): 364-372.
1 蔡忠贤,刘永立,段金宝. 2009. 岩溶流域的水系变迁: 以塔河油田6区西北部奥陶系古岩溶为例. 现代地质,28(1): 31-34. [Cai Z X,Liu Y L,Duan J B. 2009. Transition of river system in karst basin: A case study on Ordovician palaeokarst in the northwest of Block 6,Tahe oilfield. Geoscience,28(1): 31-34] 2 何宇彬. 1991. 试论均匀状厚层灰岩水动力剖面及实际意义. 中国岩溶,10(4): 1-12. [He Y B. 1991. Hydrodynamic section of thick homogeneous limestone and its practical significance. Carsologica Sinica,10(4): 1-12] 3 何宇彬. 1994. 试论喀斯特水动力剖面模式. 地球科学—中国地质大学学报,19(1): 119-126. [He Y B. 1994. Comment on karst hydrodynamical section. Earth Science-Journal of China University of Geosciences,19(1): 119-126] 4 焦方正,翟晓先. 2008. 海相碳酸盐岩非常规大油气田: 塔河油田勘探研究与实践. 北京: 石油工业出版社. [Jiao F Z,Zhai X X. 2008. Marine Carbonate Unconventional Oil and Gas Fields: Tahe Oilfield Exploration Research and Practice. Beijing: Petroleum Industry Press] 5 康志宏. 2006. 塔河碳酸盐岩油藏岩溶古地貌研究. 新疆石油地质,27(5): 522-525. [Kang Z H. 2006. The karst palaeogeomorphology of Carbonate Reservoir in Tahe Oilfield. Xinjiang Petroleum Geology,27(5): 522-525] 6 廖涛,侯加根,陈利新,马克,杨文明,董越. 2015. 塔北哈拉哈塘油田奥陶系岩溶储集层发育模式. 石油学报,36(11): 1380-1391. [Liao T,Hou J G,Chen L X,Ma K,Yang W M,Dong Y. 2015. Evolutionary model of the Ordovician karst reservoir in Halahatang oilfield,northern Tarim Basin. Acta Petrolei Sinica,36(11): 1380-1391] 7 廖涛,侯加根,陈利新,马克,杨文明,董越,白晓佳. 2016. 断裂对塔北地区哈拉哈塘油田奥陶系非暴露岩溶缝洞型储集层的控制作用. 古地理学报,18(2): 221-235. [Liao T,Hou J G,Chen L X,Ma K,Yang W M,Dong Y,Bai X J. 2016. Fault controlling on non-exposed karst fracture-vug reservoirs of the Ordovician in Halahatang Oilfield,northern Tarim Basin. Journal of Palaeogeography(Chinese Edition),18(2): 221-235] 8 刘峰. 2010. 湖北省恩施市板桥暗河管道系统特征及成因分析. 成都理工大学硕士论文. [Liu F. 2010. Underground River Piping Characteristics and Genetic Analysis of Banqiao in Enshi City,Hubei Province. Master's Dissertation of Chengdu University of Technology] 9 刘永立,蔡忠贤. 2009. 塔河油田四区奥陶系古岩溶流域的倒淌河及其成因研究. 现代地质,23(6): 1121-1125. [Liu Y L,Cai Z X. 2009. The inverted river and its origin in palaeokarst Drainage Basin of Ordovicician in Block 4,Tahe Oilfield. Geoscience,23(6): 1121-1125] 10 鲁新便,何成江,邓光校,鲍典. 2014. 塔河油田奥陶系油藏喀斯特古河道发育特征描述. 石油实验地质,36(3): 268-274. [Lu X B,He C J,Deng G X,Bao D. 2014. Development features of karst ancient river system in Ordovician reservoirs,Tahe Oilfield. Petroleum Geology & Experiment,36(3): 268-274] 11 桑琴,未勇,程超,黄静,何术坤,郭贵安,吴昌龙,彭祚远. 2012. 蜀南地区二叠系茅口组古岩溶地区水系分布及岩溶地貌单元特征. 古地理学报,14(3): 393-402. [Sang Q,Wei Y,Chen C,Huang J,He S K,Guo G A,Wu C L,Peng Z Y. 2012. Distribution of palaeokarst water system and palaeogeomorphic unit characteristics of the permian Maokou formation in southern Sichaun Province. Journal of Palaeogeography(Chinese Edition),14(3): 393-402] 12 杨明德. 1998a. 喀斯特流域水文地貌系统. 北京: 地质出版社,40-74. [Yang M D. 1998a. Karst River Basin Landform System. Beijing:Geological Pulbishing House, 40-74] 13 杨明德. 1998b. 岩溶峡谷区溶洞发育特征及水动力条件. 中国岩溶,17(3): 187-195. [Yang M D. 1998b. Development of cavities in karstic valley in respondent to hydodynamics. Carsologica Sinica,17(3): 187-195] 14 Bahorich M,Farmer S. 1995. 3D seismic discontinuity for faults and stratigraphic features: The coherence cube.The leading edge,14(10): 1053-1058. 15 Ford D,Williams P. 2007. Karst Hydrogeology and Geomorphology. New York: John Wiley & Sons Ltd., 103-140. 16 Hill C A,Polyak V J. 2005. Progressive lowering of the water table in the Grand Canyon as recorded by cave and mine deposits. Geological Society of America,Abstracts with Programs, 37(6): 16. 17 Hill C A,Eberz N,Buecher R H. 2008. A karst connection model for Grand Canyon,Arizona,USA. Geomorphology,95(3): 316-334. 18 Hill C A,Polyak V J. 2010. Karst hydrology of Grand Canyon,Arizona,USA. Journal of Hydrology,390(3): 169-181. 19 Huntoon P W. 2000. Variability of karstic permeability between unconfined and confined aquifers,Grand Canyon region,Arizona. Environmental & Engineering Geoscience,6(2): 155-170. 20 James N P,Choquette P W. 1988. Paleokarst. New York: Springer Verlag, 227-248. 21 Palmer A N. 2007. Cave Geology. Ohil, USA: Cave books, 74-92.
