Lithologic Reservoirs ›› 2018, Vol. 30 ›› Issue (1): 75-85.doi: 10.3969/j.issn.1673-8926.2018.01.008

Previous Articles     Next Articles

Characteristics and main controlling factors of carbonate reservoirs of Longwangmiao Formation in eastern Sichuan Basin

HAN Bo1,2, HE Zhiliang2, REN Nana3, TIAN Haiqin2, MA Qiang2   

  1. 1. School of Energy Resources, China University of Geosciences, Beijing 100083, China;
    2. Sinopec Petroleum Exploration and Production Research Institute, Beijing 100083, China;
    3. School of Geosciences, China University of Petroleum, Beijing 102249, China
  • Received:2017-07-27 Revised:2017-09-17 Online:2018-01-21 Published:2018-01-21

PDF (PC)

542

Abstract: It is the Lower Cambrian Longwangmiao Formation in Sichuan Basin that has become an important reservoir rocks for oil and gas exploration with the discovery of Anyue gas field. Based on the investigation of the outcrops and the boreholes,the characteristics and major controlling factors of the Longwangmiao carbonate reservoirs in the eastern Sichuan Basin were studied by using optical,casting thin sections,X-ray diffraction,order degree of dolomite,carbon,oxygen isotopes analyses,as well as physical property analyses. The following conclusions can be drawn. The main sedimentary facies of Longwangmiao carbonates mainly include the restricted platform and open platform,followed by the tidal flat,grain bank,limestone flat microfacies,etc. Especially, there are many grain shoal and tidal flat groups or rhythms in a single sequence system tract. The lithology of reservoir rocks mainly consists of granular dolomite and the crystalline dolomite,followed by granular limestone with partly dolomitized. The reservoir physical property of granular dolomite is superior to powder and fine crystalline dolostones,the granular limestone with partly dolomitized has limited reservoir properties and the nondolomitization part has little reservoir space. The reservoir spaces are dominated by intergranular denudation pore,intercrystalline denudation pore and micro-fissure. It is revealed that the grain shoal microfacies with high degree of dolomitization is a prerequisite to reservoir rocks,the grain shoal microfacies is the material bases of developing the Longwangmiao formation reservoirs,penecontemporaneous and early stage of diagenesis dolomitization and penecontemporaneous dissolution are the key factors to form the reservoir.

Key words: shale gas, accumulation conditions, resources potential, Paleozoic, northeastern Chongqing

CLC Number: 

  • TE122.2
[1] 杜金虎,张宝民,汪泽成,等. 四川盆地下寒武统龙王庙组碳酸盐缓坡双颗粒滩沉积模式及储层成因. 天然气工业,2016, 36(6):1-10. DU J H,ZHANG B M,WANG Z C,et al. Sedimentary model and reservoir genesis of dual grain banks at the Lower Cambrian Longwangmiao Formation carbonate ramp in the Sichuan Basin. Natural Gas Industry,2016,36(6):1-10.
[2] 邹才能,杜金虎,徐春春,等. 四川盆地震旦系-寒武系特大型气田形成分布、资源潜力及勘探发现. 石油勘探与开发, 2014,41(3):278-293. ZOU C N,DU J H,XU C C,et al. Formation,distribution,resource potential and discovery of the Sinian-Cambrian giant gas field, Sichuan Basin,SW China. Petroleum Exploration and Development,2014,41(3):278-293.
[3] 周进高,徐春春,姚根顺,等.四川盆地下寒武统龙王庙组储集层形成与演化.石油勘探与开发,2015,42(2):158-166. ZHOU J G,XU C C,YAO G S,et al. Genesis and evolution of Lower Cambrian Longwangmiao Formation reservoirs,Sichuan Basin,SW China. Petroleum Exploration and Development, 2015,42(2):158-166.
[4] 刘树根,孙玮,李智武,等.四川叠合盆地海相碳酸盐岩油气分布特征及其构造主控因素.岩性油气藏,2016,28(5):1-17. LIU S G,SUN W,LI Z W,et al. Distribution characteristics of marine carbonate reservoirs and their tectonic controlling factors across the Sichuan superimposed basin. Lithologic Reservoirs,2016,28(5):1-17.
[5] 马腾,谭秀成,李凌,等.四川盆地及邻区下寒武统龙王庙组颗粒滩沉积特征与空间分布.古地理学报,2015,17(2):213-228. MA T,TAN X C,LI L,et al. Sedimentary characteristics and distribution of grain shoals in the Lower Cambrian Longwangmiao Formation of Sichuan Basin and its adjacent areas. Journal of Palaeogeography,2015,17(2):213-228.
[6] 谭秀成,刘晓光,陈景山,等.磨溪气田嘉二段陆表海碳酸盐岩台地内滩体发育规律.沉积学报,2009,27(5):995-1001. TAN X C,LIU X G,CHEN J S,et al. Research on sedimentary microafeies of the epicontinental sea platform of Jia 2 member in Moxi Gas Field. Acta Sedimentologica Sinica,2009,27(5):995-1001.
[7] 杨雪飞,王兴志,代林呈,等.川中地区下寒武统龙王庙组沉积相特征.岩性油气藏,2015,27(1):95-101. YANG X F,WANG X Z,DAI L C,et al. Diagenesis of the dolomite reservoir in Lower Cambrian Longwangmiao Formation in Central Sichuan Basin. Geological Science and Technology Information,2015,27(1):95-101.
[8] 代林呈,王兴志,杜双宇,等.四川盆地中部龙王庙组滩相储层特征及形成机制.海相油气地质,2016,21(1):19-28. DAI L C,WANG X Z,DU S Y,et al. Characteristics and genesis of Lower Cambrian Longwangmiao beach-facies reservoirs in central part of Sichuan Basin. Marine Origin Petroleum Geology, 2016,21(1):19-28.
[9] 张建勇,罗文军,周进高,等.四川盆地安岳特大型气田下寒武统龙王庙组优质储层形成的主控因素.天然气地球科学, 2015,26(11):2063-2074. ZHANG J Y,LUO W J,ZHOU J G,et al. Marine origins of high quality reservoir of Lower Cambrian Longwangmiao Formation in the giant Anyue Gas Field,Sichuan Basin,SW China. Natural Gas Geoscience,2015,26(11):2063-2074.
[10] 田海芹.中国南方寒武岩相古地理研究及编图.北京:石油大学出版社,1998:57-59. TIAN H Q. Study and mapping of lithofacies palaeogeography of the Cambrian in south China. Beijing:China University of Petroleum Publishing Press,1998:57-59.
[11] 杨威,谢武仁,魏国齐,等.四川盆地寒武纪-奥陶纪层序岩相古地理、有利储层展布与勘探区带.石油学报,2012,33(增刊2):21-34. YANG W,XIE W R,WEI G Q,et al. Sequence lithofacies paleogeography,favorable reservoir distribution and exploration zones of the Cambrian and Ordovician in Sichuan Basin,China. Acta Petrolei Sinica,2012,33(Suppl 2):21-34.
[12] 冯伟明,谢渊,刘建清,等.四川盆地东南缘清虚洞组层序-岩相古地理特征及其油气地质意义.成都理工大学学报(自科版),2016,43(1):35-43. FENG W M,XIE Y,LIU J Q,et al. Characteristics of sequencebased lithofacies and paleogeography of Qingxudong Formation on the southeast margin of Sichuan Basin,China. Journal of Chendu University of Technology(Science & Technology Edition),2016,43(1):35-43.
[13] 赵彦彦,郑永飞.碳酸盐沉积物的成岩作用.岩石学报,2011, 27(2):501-519. ZHAO Y Y,ZHENG Y F. Diagenesis of carbonate sediments. Acta Petrologica Sinica,2011,27(2):501-519.
[14] JINGHWA HSÜ K,SIEGENTHALER C. Preliminary experiments on hydrodynamic movement induced by evaporation and their bearing on the dolomite problem. Sedimentology,1969,12(1/2):11-25.
[15] ADAMS J F,RHODES M L. Dolomitization by seepage refluxion. AAPG Bulletin,1960,44(12):1912-1920.
[16] KEITHT M L,WEBER J N. Carbon and oxygen isotopic composition of selected limestones and fossils. Geochimica et Cosmochimica Acta,1964,28(10/11):1787-1816.
[17] 张秀莲.碳酸盐岩中氧、碳稳定同位素与古盐度、古水温的关系.沉积学报,1985,3(4):17-30. ZHANG X L. Relationship between carbon and oxygen stable isotope in carbonate rocks and paleosalinity and paleotemperature of seawater. Acta Sedimentologica Sinica,1985,3(4):17-30.
[18] 任影,钟大康,高崇龙,等.四川盆地东部下寒武统龙王庙组碳、氧同位素组成及古环境意义. 海相油气地质,2016,21(4):11-20. RENY,ZHONG D K,GAO C L,et al. Carbon and oxygen isotope compositions and its paleoenvironment implication of Lower Cambrian Longwangmiao Formation in the east part of Sichuan Basin. Marine Origin Petroleum Geology,2016,21(4):11-20.
[19] CRAIG H. The measurement of oxygen isotope paleotemperatures. Stable Isotopes in Oceanographic Studies and Paleotemperature.1965:161-182.
[20] 邵龙义.碳酸盐岩氧、碳同位素与古温度等的关系.中国矿业大学学报,1994,39(1):39-45. SHAO L Y. The relation of the oxygen and carbon isotope in the carbonate rocks of the paleotemperature etc. Journal of China University of Mining & Technology,1994,39(1):39-45.
[21] 李江海,韩喜球,毛翔. 全球构造图集. 北京:地质出版社, 2014:38-46. LI J H,HAN X Q,MAO X. Global construct atlas. Beijing:Geological Publishing House,2014:38-46.
[22] 毕义泉,田海芹,赵勇生,等.论泥晶套与次生白云岩原岩结构特征的恢复及意义.岩石学报,2001,17(3):491-496. BI Y Q,TIAN H Q,ZHAO Y S,et al. On the micrite envelope to restoration of primary texture character of secondary dolomites and its significance. Acta Petrologica Sinica,2001,17(3):491-496.
[23] 刘喜停,颜佳新.海水化学演化对生物矿化的影响综述.古地理学报,2009,11(4):446-454. LIU X T,YAN J X. A review of influences of seawater chemical evolution on biomineralization. Journal of Palaeogeography, 2009,11(4):446-454.
[24] 张学丰,刘波,蔡忠贤,等.白云岩化作用与碳酸盐岩储层物性.地质科技情报,2010,29(3):79-85. ZHANG X F,LIU B,CAI Z X,et al. Dolomitization and carbonate reservoir formation. Geological Science and Technology Information,2010,29(3):79-85.
[1] Guan Yunwen, Su Siyu, Pu Renhai, Wang Qichao, Yan Sujie, Zhang Zhongpei, Chen Shuo, Liang Dongge. Palaeozoic gas reservoir-forming conditions and main controlling factors in Xunyi area，southern Ordos Basin [J]. Lithologic Reservoirs, 2024, 36(6): 77-88.
[2] YAN Jianping, LAI Siyu, GUO Wei, SHI Xuewen, LIAO Maojie, TANG Hongming, HU Qinhong, HUANG Yi. Research progress on casing deformation types and influencing factors in geological engineering of shale gas wells [J]. Lithologic Reservoirs, 2024, 36(5): 1-14.
[3] YANG Xuefeng, ZHAO Shengxian, LIU Yong, LIU Shaojun, XIA Ziqiang, XU Fei, FAN Cunhui, LI Yutong. Main controlling factors of shale gas enrichment of Ordovician Wufeng Formation-Silurian Longmaxi Formation in Ningxi area，Sichuan Basin [J]. Lithologic Reservoirs, 2024, 36(5): 99-110.
[4] BAO Hanyong, ZHAO Shuai, ZHANG Li, LIU Haotian. Exploration achievements and prospects for shale gas of Middle-Upper Permian in Hongxing area，eastern Sichuan Basin [J]. Lithologic Reservoirs, 2024, 36(4): 12-24.
[5] SHEN Youyi, WANG Kaifeng, TANG Shuheng, ZHANG Songhang, XI Zhaodong, YANG Xiaodong. Geological modeling and“sweet spot”prediction of Permian coal measures shale reservoirs in Yushe-Wuxiang block，Qinshui Basin [J]. Lithologic Reservoirs, 2024, 36(4): 98-108.
[6] DUAN Yifei, ZHAO Weiwei, YANG Tianxiang, LI Fukang, LI Hui, WANG Jianan, LIU Yuchen. Source-reservoir characteristics and accumulation rules of shale gas of Permian Shanxi Formation in Yan'an area, Ordos Basin [J]. Lithologic Reservoirs, 2024, 36(3): 72-83.
[7] CHENG Jing, YAN Jianping, SONG Dongjiang, LIAO Maojie, GUO Wei, DING Minghai, LUO Guangdong, LIU Yanmei. Low resistivity response characteristics and main controlling factors of shale gas reservoirs of Ordovician Wufeng Formation-Silurian Longmaxi Formation in Changning area，southern Sichuan Basin [J]. Lithologic Reservoirs, 2024, 36(3): 31-39.
[8] JI Yubing, GUO Bingru, MEI Jue, YIN Zhijun, ZOU Chen. Fracture modeling of shale reservoirs of Silurian Longmaxi Formation in Luobu syncline in Zhaotong National Shale Gas Demonstration Area， southern margin of Sichuan Basin [J]. Lithologic Reservoirs, 2024, 36(3): 137-145.
[9] YANG Bowei, SHI Wanzhong, ZHANG Xiaoming, XU Xiaofeng, LIU Yuzuo, BAI Luheng, YANG Yang, CHEN Xianglin. Pore structure characteristics and gas-bearing properties of shale gas reservoirs of Lower Carboniferous Dawuba Formation in southern Guizhou [J]. Lithologic Reservoirs, 2024, 36(1): 45-58.
[10] WANG Xiaojuan, CHEN Shuangling, XIE Jirong, MA Hualing, ZHU Deyu, PANG Xiaoting, YANG Tian, LYU Xueying. Accumulation characteristics and main controlling factors of tight sandstone of Jurassic Shaximiao Formation in southwestern Sichuan Basin [J]. Lithologic Reservoirs, 2024, 36(1): 78-87.
[11] WEI Quanchao, LI Xiaojia, LI Feng, HAO Jingyu, DENG Shuanglin, WU Juan, DENG Bin, WANG Daojun. Development characteristics and significance of fracture veins of Lower Cambrian Qiongzhusi Formation in Wangcang area at Micang Mountain front， Sichuan Basin [J]. Lithologic Reservoirs, 2023, 35(5): 62-70.
[12] YANG Runze, ZHAO Xianzheng, LIU Haitao, LI Hongjun, ZHAO Changyi, PU Xiugang. Hydrocarbon accumulation characteristics and favorable zones prediction in and under source of Paleozoic in Huanghua Depression，Bohai Bay Basin [J]. Lithologic Reservoirs, 2023, 35(3): 110-125.
[13] LIU Zhongquan, ZHAO Leqiang, ZENG Zhiping, TIAN Jijun, LI Zhengqiang, LUO Jinchang, HU Meiling. Shale oil accumulation conditions of Permian Lucaogou Formation in Fukang fault zone，Junggar Basin [J]. Lithologic Reservoirs, 2023, 35(3): 126-137.
[14] YANG Yueming, ZHANG Shaomin, JIN Tao, MING Ying, GUO Ruiying, WANG Xingzhi, HAN Luyuan. Characteristics and exploration potential of shale reservoirs of Permian Longtan Formation in southern Sichuan Basin [J]. Lithologic Reservoirs, 2023, 35(1): 1-11.
[15] YAN Jianping, LUO Jingchao, SHI Xuewen, ZHONG Guanghai, ZHENG Majia, HUANG Yi, TANG Hongming, HU Qinhong. Fracture development models and significance of Ordovician WufengSilurian Longmaxi shale in Luzhou area，southern Sichuan Basin [J]. Lithologic Reservoirs, 2022, 34(6): 60-71.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] YANG Zhanlong,ZHANG Zhenggang,CHEN Qilin,GUO Jingyi,SHA Xuemei,LIU Wensu. Using multi-parameters analysis of seismic information to evaluate lithologic traps in continental basins[J]. Lithologic Reservoirs, 2007, 19(4): 57 -63 .
[2] FANG Chaohe, WANG Yifeng, ZHENG Dewen, GE Zhixin. Maceral and petrology of Lower Tertiary source rock in Qintong Sag, Subei Basin[J]. Lithologic Reservoirs, 2007, 19(4): 87 -90 .
[3] LIN Chengyan, TAN Lijuan, YU Cuiling. Research on the heterogeneous distribution of petroleum(Ⅰ)[J]. Lithologic Reservoirs, 2007, 19(2): 16 -21 .
[4] WANG Tianqi, WANG Jiangong, LIANG Sujuan, SHA Xuemei. Fine oil exploration of Putaohua Formation in Xujiaweizi area, Songliao Basin[J]. Lithologic Reservoirs, 2007, 19(2): 22 -27 .
[5] WANG Xiwen,SHI Lanting,YONG Xueshan,YNAG Wuyang. Study on seismic impedance inversion[J]. Lithologic Reservoirs, 2007, 19(3): 80 -88 .
[6] HE Zongbin,NI Jing,WU Dong,LI Yong,LIU Liqiong,TAI Huaizhong. Hydrocarbon saturation determined by dual-TE logging[J]. Lithologic Reservoirs, 2007, 19(3): 89 -92 .
[7] YUAN Shengxue,WANG Jiang. Identification of the shallow gas reservoir in Shanle area,Tuha Basin[J]. Lithologic Reservoirs, 2007, 19(3): 111 -113 .
[8] CHEN Fei，WEI Dengfeng，YU Xiaolei，WU Shaobo. Sedimentary facies of Chang 2 oil-bearing member of Yanchang Formation in Yanchi-Dingbian area, Ordos Basin[J]. Lithologic Reservoirs, 2010, 22(1): 43 -47 .
[9] XU Yunxia，WANG Shanshan，YANG Shuai. Using Walsh transform to improve signal-to-noise ratio of seismic data[J]. Lithologic Reservoirs, 2009, 21(3): 98 -100 .
[10] LI Jianming，SHI Lingling，WANG Liqun，WU Guangda. Characteristics of basement reservoir in Kunbei fault terrace belt in southwestern Qaidam Basin[J]. Lithologic Reservoirs, 2011, 23(2): 20 -23 .
TRENDMD:

Copyright © 2018 Lithologic Reservoirs

Support by Beijing Magtech support@magtech.com.cn