库车坳陷迪那气田古近系裂缝发育的多样性与差异性

doi:10.11743/ogg20170502

Abstract

Abstract: The diversities and disparities of fracture systems in low-and ultra-low-permeability sandstone reservoirs in the Paleogene in DN gas field of Kuqa Depression,Tarim Basin,were scrutinized through a combination of analytic means such as core and thin section observation,SEM,as well as analyses of clay mineral XRD,fluid inclusion,and physical properties of oil-bearing formations,with regional geological understanding.The results show that the fracture systems are dominated by tectonic fractures,followed successively by dissolution fractures,diagenetic fractures,and overpressured fractures.The tectonic fractures have 3 types (shear fractures,extension fractures,and seismic-related fractures) and 3 development stages.It was the late Himalayan stage (i.e.the end of Pliocene,2.6-1.81 Ma) when certain tectonic compression process generated the most favorable fractures for hydrocarbon accumulations.The formation of the other three kinds of fractures,i.e.the dissolution fractures,diagenetic fractures,and overpressured fractures,is suggested to be happening during the period from the late Kuqua to Xiyu (2Ma-present) and associated with dissolution by hydrocarbon charging,shrinkage by dehydration of clay minerals,and a formation overpressure by intensive tectonic compression,rapid burial processes and pressurized fluids.The disparities of the fracture systems are mainly controlled by rock types,sedimentary facies belts,the single layer thickness and the distance to major controlling faults.The underwater distributary channels in the central part of the gas field are dominated by silty and fine sandstone where the fractures are highly developed and well productivity is high.The linear density of fractures are found to be negatively related to the thickness of single layers (a s-shaped correlation),and decreases as the distance to the major controlling faults increases.The linear density of fractures in mudstone is less than 0.4 lines per meter and is observed to have no connection with single layer thickness.

Key words: tectonic fracture, dissolution fracture, diagenetic fracture, overpressured fracture, fracture characteristic, low-permeability sandstone reservoir, DN gas field, Tarim Basin

CLC Number:

TE122.1

Yuan Jing, Cao Yu, Li Ji, Dong Daotao, Yang Rong, Li Chuntang, Chang Lunjie, Yang Junsheng. Diversities and disparities of fracture systems in the Paleogene in DN gas field,Kuqa Depression,Tarim Basin[J]. Oil & Gas Geology, 2017, 38(5): 840-850.

References

[1] 马玉杰,谢会文,蔡振忠,等.库车坳陷迪那2气田地质特征[J].天然气地球科学,2003,14(5):371-374. Ma Yujie,Xie Huiwen,Cai Zhenzhong,et al.The geology feature of Dina 2 gasfield,Kuche Depression[J].Natural Gas Geoscience,2003,14(5):371-374.
[2] 杨帆,孙玉善,谭秀成,等.迪那2气田古近系地渗透储集层形成机制分析[J].石油勘探与开发,2005,32(2):39-42. Yang Fan,Sun Yushan,Tan Xiucheng,et al.Formation mechanism of Paleogene low permeability reservoir in Dina 2 Gasfield,Tarim Basin[J].Petroleum Exploration and Development,2005,32(2):39-42.
[3] 颜文豪,李建明,王冬梅,等.库车坳陷迪那2气田地质特征与沉积储层研究[J].天然气地球科学,2009,20(1):86-93. Yan Wenhao,Li Jianming,Wang Dongmei,et al.Geologic characteri-stics and sedimentary reservoir of Dina 2 Gasfield in Kuche Depression[J].Natural Gas Geoscience,2009,20(1):86-93.
[4] 朱光有,杨海军,张斌,等.塔里木盆地迪那2大型凝析气田的地质特征及其成藏机制[J].岩石学报,2012,28(8):2479-2492. Zhu Guangyou,Yang Haijun,Zhang Bin,et al.The geological feature and origin of Dina 2 large gas field in Kuqa Depression,Tarim Basin[J].Acta Petrologica Sinica,2012,28(8):2479-2492.
[5] 孙冬胜,金之钧,吕修祥,等.库车前陆盆地迪那2气田成藏机理及成藏年代[J].石油与天然气地质,2004,25(5):559-564. Sun Dongsheng,Jin Zhijun,Lü Xiuxiang,et al.Reservoiring mechanism and finalization period of Dina 2 Gasfield in Kuqa Basin[J].Oil & Gas Geology,2004,25(5):559-564.
[6] 张凤奇,王震亮,赵雪娇,等.库车坳陷迪那2气田异常高压成因机制及其与油气成藏的关系[J].石油学报,2012,33(5):739-747. Zhang Fengqi,Wang Zhenliang,Zhao Xuejiao,et al.Genetic mechanism of overpressure and its relationship with hydrocarbon accumulation in Dina-2 gasfield,Kuqa depression[J].Acta Petrolei Sinica,2012,33(5):739-747.
[7] 吴永平,朱忠谦,肖香姣,等.迪那2气田古近系储层裂缝特征及分布评价[J].天然气地球科学,2011,22(6):989-995. Wu Yongping,Zhu Zhongqian,Xiao Xiangjiao,et al.Fracture feature of tertiary reservoir and distribution evaluation in Dina 2 Gasfield[J].Natural Gas Geoscience,2011,22(6):989-995.
[8] 吴永平,昌伦杰,陈文龙,等.裂缝表征及建模在迪那2气田的应用[J].断块油气田,2015,22(1):78-81. Wu Yongping,Chang Lunjie,Chen Wenlong,et al.Application of fracture characterization and modeling in Dina 2 Gas Field[J].Fault-Block Oil & Gas Field,2015,22(1):78-81.
[9] 刘春,张惠良,韩波,等.库车坳陷大北地区深部碎屑岩储层特征及控制因素[J].天然气地球科学,2009,20(4):504-512. Liu Chun,Zhang Huiliang,Han Bo,et al.Reservoir characteristics and control factors of deep-burial clastic rocks in Dabei zone of Kuche sag[J].Nature Gas Geosciences,2009,20(4):504-512.
[10] Olson Jon E,Laubach S E,Lander R H.Natural fracture characterization in tight gas sandstones:integrating mechanics and diagenesis[J].AAPG Bulletin,2009,93(11):1535-1549.
[11] Nelson R A.Geologic analysi s of naturally fractured reservoires[M].Texas:Gulf Publi shing Company,1985:8-26.
[12] 朱志澄,宋鸿林.构造地质学[M].武汉:中国地质大学出版社,1990:141-156. Zhu Zhicheng,Song Honglin.Structural geology[M].Wuhan:China University of Geosciences Press,1990:141-156.
[13] 曾联波,漆家福,王永秀.低渗透储层构造裂缝的成因及其形成地质条件[J].石油学报,2007,28(4):52-56. Zeng Lianbo,Qi Jiafu,Wang Yongxiu.Origin type of tectonic fractures and geological conditions in low-permeability reservoirs[J].Acta Petrolei Sinaca,2007,28(4):52-56.
[14] 张明利,谭成轩,汤良杰,等.塔里木盆地库车坳陷中新生代构造应力场分析[J].地球学报,2004,25(6):615-619. Zhang Mingli,Tan Chengxuan,Tang Liangjie,et al.An analysis of the Mesozoic-Cenozoic tectonic stress field in Kuqa Depression,Tarim Basin[J].Acta Geoscientica Sinica,2004,25(6):615-619.
[15] 贾承造.中国塔里木盆地构造特征与油气[M].北京:石油工业出版社,1997. Jia Chengzao.Structure characteristics and hydrocarbon of Tarim Basin[M].Beijing:Publishing House of Oil Industry,1997.
[16] 张仲培,王清晨,王毅,等.库车坳陷脆性构造序列及其对构造古应力的指示[J].地球科学(中国地质大学学报),2006,31(3):309-316. Zhang Zhongpei,Wang Qingchen,Wang Yi,et al.Brittle structure sequence in the Kuqa Depression and its implications to the tectonic paleostress[J] Earth Science-Journal of China University of Geosciences,2006,31(3):309-316.
[17] 王洪辉,陆正元.四川盆地中西部上三叠统砂岩非构造裂缝储层[J].石油与天然气地质,1998,19(1):35-41. Wang Honghui,Lu Zhengyuan.Nontectonic fractured sandstone reservoirs of upper Triassic in middle-west Sichuan Basin[J].Oil and Gas Geology,1998,19(1):35-41.
[18] Zeng Lianbo.Microfracturing in the Upper Triassic Sichuan Basin tight-gas sandstones:tectonic,overpressure,and diagenetic origins[J].AAPG Bulletin,2010,94(12):1811-1825.
[19] 林承焰,梁昌国,任丽华,等.碎屑岩潜山沉积相及其与裂缝发育的关系[J].中国石油大学学报(自然科学版),2008,32(4):1-6. Lin Chengyan,Liang Changguo,Ren Lihua,et al.Sedimentary facies and relation to degree of fracture development of clastic buried hills[J].Journal of China University of Petroleum(Edition of Natural Science),2008,32(4):1-6.
[20] Murray G H.Quantitative fracture study[J].AAPG Bulletin,1968,52(1):57-65
[21] Fall A,Eichhub P,Bodnar R J,et al.Natural hydraulic fracturing of tight-gas sandstone reservoirs,Piceance Basin,Colorado[J].GSA Bulletin,2015,127(1/2):61-75.
[22] Payne D F,Tuncay K,Park A,et al.A reaction-transport-mechanical approach to modeling the interrelationships among gas generation,overpressuring,and fracturing:implications for the Upper Cretaceous natural gas reservoirs of the Piceance Basin,Colorado[J].AAPG Bulletin,2000,84(4):545-565.
[23] 赵文韬,侯贵廷,孙雄伟,等.库车东部碎屑岩层厚和岩性对裂缝发育的影响[J].大地构造与成矿学,2013,37(4):603~610. Zhao Wentao,Hou Guiting,Sun Xiongwei,et al.Influence of layer thickness and lithology on the fracture growth of clastic rock in east Kuqa[J].Geotectonica et Metallogenia,2013,37(4):603~610.
[24] Baytok S,Pranter M J.Fault and fracture distribution within a tight-gas sandstone reservoir:Mesaverde Group,Mamm Creek Field,Piceance Basin,Colorado[J].USA Petroleum Geoscience,2013,19:203-222.
[25] 王振宇,陶夏妍,范鹏,等.库车坳陷大北气田砂岩气层裂缝分布规律及其对产能的影响[J].油气地质与采收率,2014,21(2):51-56. Wang Zhenyu,Tao Xiayan,Fan Peng,et al.Distribution rule of fractures and their effect on deliverability in sandstone reservoirs,Dabei gas field,Kuqa foreland basin[J].PGRE,2014,21(2):51-56.
[26] Narr W.Fracture density in the deep subsurface:Techiques with application to Point Arguello oil field[J].AAPG Bull,1991,75(8):1300-1323.
[27] 张震,鲍志东.松辽盆地朝阳沟油田储层裂缝发育特征及控制因素[J].地学前缘,2009,16(4):166-172. Zhang Zhen,Bao Zhidong.Development characteristics and controlling factors of reservoir fractures in Chaoyanggou Oilfield,Songliao Basin[J].Earth Science Frontiers,2009,16(4):166-172.
[28] 赵文韬,侯贵廷,张居增,等.层厚与岩性控制裂缝发育的力学机理研究:以鄂尔多斯盆地延长组为例[J].北京大学学报(自然科学版),2015,51(6):1047-1058. Zhao Wentao,Hou Guiting,Zhang Juzeng,et al.Study on the develo-pment law of structural fractures of Yanchang Formation in Longdong area,Ordos Basin[J].Acta Scientiarum Naturalium Universitatis Pekinensis,2015,51(6):1047-1058.
[29] 王俊鹏,张荣虎,赵继龙,等.超深层致密砂岩储层裂缝定量评价及预测研究:以塔里木盆地克深气田为例[J].天然气地球科学,2014,25(1):1735-17450. Wang Junpeng,Zhang Ronghu,Zhao Jilong,et al.Characteristics and evolution of fractures in ultra-deep tight sandstone reservoir:taking Keshen Gasdfield in Tarim Basin,NW China as an example[J].Natrural Gas Geosicence,2014,25(1):1735-1745.
[30] 戴俊生,冯建伟,李明,等.砂泥岩间互地层裂缝延伸规律探讨[J].地学前缘(中国地质大学(北京);北京大学),2011,18(2):277-283. Dai Junsheng,Feng Jianwei,Li Ming,et al.Discussion on the extension law of structural fracture in sand-mud interbed formation[J].Earth Science Frontiers(China University of Geosciences(Beijing);Peking University),2011,18(2):277-283.
[31] 孟召平,彭苏萍,傅继彤.含煤岩系岩石力学性质控制因素探讨[J].岩石力学与工程学报,2002,21(1):102-106. Meng Zhaoping,Peng Suping,Fu Jitong.Study on control factors of rock mechanics properties of coal-bearing formation[J].Chinese Journal of Rock Mechanics and Engineering,2002,21(1):102-106.

Diversities and disparities of fracture systems in the Paleogene in DN gas field,Kuqa Depression,Tarim Basin

PDF (PC)

Knowledge

Cited

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

[1]	Pengyuan HAN, Wenlong DING, Debin YANG, Juan ZHANG, Hailong MA, Shenghui WANG. Characteristics of the S80 strike-slip fault zone and its controlling effects on the Ordovician reservoirs in the Tahe oilfield， Tarim Basin [J]. Oil & Gas Geology, 2024, 45(3): 770-786.
[2]	Yanqiu ZHANG, Honghan CHEN, Xiepei WANG, Peng WANG, Danmei SU, Zhou XIE. Assessment of connectivity between source rocks and strike-slip fault zone in the Fuman oilfield， Tarim Basin [J]. Oil & Gas Geology, 2024, 45(3): 787-800.
[3]	Wenlong DING, Yuntao LI, Jun HAN, Cheng HUANG, Laiyuan WANG, Qingxiu MENG. Methods for high-precision tectonic stress field simulation and multi-parameter prediction of fracture distribution for carbonate reservoirs and their application [J]. Oil & Gas Geology, 2024, 45(3): 827-851.
[4]	Zicheng CAO, Lu YUN, Lixin QI, Haiying LI, Jun HAN, Feng GENG, Bo LIN, Jingping CHEN, Cheng HUANG, Qingyan MAO. A major discovery of hydrocarbon-bearing layers over 1，000-meter thick in well Shunbei 84X， Shunbei area， Tarim Basin and its implications [J]. Oil & Gas Geology, 2024, 45(2): 341-356.
[5]	Debin YANG, Xinbian LU, Dian BAO, Fei CAO, Yan WANG, Ming WANG, Runcheng XIE. New insights into the genetic types and characteristics of the Ordovician marine fault-karst carbonate reservoirs in the northern Tarim Basin [J]. Oil & Gas Geology, 2024, 45(2): 357-366.
[6]	Changjian ZHANG, Debin YANG, Lin JIANG, Yingbing JIANG, Qi CHANG, Xuejian MA. Characteristics and origin of over-dissolution residual fault-karst reservoirs in the northern Tahe oilfield， Tarim Basin [J]. Oil & Gas Geology, 2024, 45(2): 367-383.
[7]	Tongwen JIANG, Xingliang DENG, Peng CAO, Shaoying CHANG. Storage space types and water-flooding efficiency for fault-controlled fractured oil reservoirs in Fuman oilfield， Tarim Basin [J]. Oil & Gas Geology, 2024, 45(2): 542-552.
[8]	Yuemeng NIU, Jun HAN, Yixin YU, Cheng Huang, Bo Lin, Fan YANG, Lang YU, Junyu CHEN. Igneous rock intrusions in the western Shunbei area， Tarim Basin： Characteristics and coupling relationships with faults [J]. Oil & Gas Geology, 2024, 45(1): 231-242.
[9]	San ZHANG, Qiang JIN, Jinxiong SHI, Mingyi HU, Mengyue DUAN, Yongqiang LI, Xudong ZHANG, Fuqi CHENG. Filling patterns and reservoir property of the Ordovician buried-river karst caves in the Tabei area， Tarim Basin [J]. Oil & Gas Geology, 2023, 44(6): 1582-1594.
[10]	Wei HU, Ting XU, Yang YANG, Zengmin LUN, Zongyu LI, Zhijiang KANG, Ruiming ZHAO, Shengwen MEI. Fluid phases and behaviors in ultra-deep oil and gas reservoirs， Tarim Basin [J]. Oil & Gas Geology, 2023, 44(4): 1044-1053.
[11]	Tan ZHANG, Wei YAO, Yongqiang ZHAO, Yushuang ZHOU, Jiwen HUANG, Xinyu FAN, Yu LUO. Time scale and denudation thickness calculation of Carboniferous Kalashayi Formation in the Bamai area， Tarim Basin [J]. Oil & Gas Geology, 2023, 44(4): 1054-1066.
[12]	Honghui GUO, Jianwei FENG, Libin ZHAO. Characteristics of passive strike-slip structure and its control effect on fracture development in Bozi-Dabei area， Tarim Basin [J]. Oil & Gas Geology, 2023, 44(4): 962-975.
[13]	Bin LI, Xingxing ZHAO, Guanghui WU, Jianfa HAN, Baozhu GUAN, Chunguang SHEN. Differential hydrocarbon accumulation model of the Ordovician in Tazhong Ⅱ block， Tarim Basin [J]. Oil & Gas Geology, 2023, 44(2): 308-320.
[14]	Hongbo ZHANG, Yushuang ZHOU, Xuguang SHA, Shang DENG, Xiangcun SHEN, Zhongzheng JIANG. Development characteristics and evolution mechanism of the uplifted segment of the No. 5 strike-slip fault zone in Shunbei area， Tarim Basin [J]. Oil & Gas Geology, 2023, 44(2): 321-334.
[15]	Xingguo SONG, Shi CHEN, Zhou XIE, Pengfei KANG, Ting LI, Minghui YANG, Xinxin LIANG, Zijun PENG, Xukai SHI. Strike-slip faults and hydrocarbon accumulation in the eastern part of Fuman oilfield， Tarim Basin [J]. Oil & Gas Geology, 2023, 44(2): 335-349.