|
|
|
| Reconstruction and petroleum geological significance of lithofacies paleogeography and palaeokarst geomorphology of the Middle Permian Maokou Formation in northwestern Sichuan Basin, SW China |
| ZHONG Yuan1,2, YANG Yueming3, WEN Long1, LUO Bing1, XIAO Di2,4, LI Minglong2, CHEN Cong1, ZHAO Like1, LU Feifan2, TAN Xiucheng2 |
1. Research Institute of Exploration and Development, PetroChina Southwest Oil and Gas Field Company, Chengdu 610041, China;
2. Division of Key Laboratory of Carbonate Reservoirs, CNPC, Southwest Petroleum University, Chengdu 610500, China;
3. PetroChina Southwest Oil and Gas Field Company, Chengdu 610051, China;
4. School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, China |
|
|
|
|
Abstract Based on analysis of outcrop, drilling, logging and seismic data, and geotectonic background, the lithofacies paleogeography and palaeokarst geomorphology of the Middle Permian Maokou Formation in the northwestern Sichuan Basin in different stages were reconstructed, and the petroleum geological significance of the lithofacies paleogeography and palaeokarst geomorphology were discussed. The Maokou Formation is divided into 3 long-term base-level cycles, namely LSC1, LSC2 and LSC3, which correspond to the Member 1, Member 2 and Member 3 of the Maokou Formation, respectively. Controlled by the extensional structure caused by opening of the Mianlue Ocean and basement faults produced by mantle plume uplifting, the area had tectonic differentiation in NWW and NE, and sedimentary basement took on episodic settlement from north to south, as a result, the sedimentary systems of Member 1 to Member 3 gradually evolved from carbonate platform to platform-slope-continental shelf. According to the residual thickness, palaeokarst geomorphologic units such as karst platform (karst monadnock and karst shallow sags), karst slope and karst basin at different stages were reconstructed. The karst geomorphological units were developed successively on the basis of sedimentary geomorphology. Sedimentary facies and paleokarst geomorphology are of great significance for oil and gas accumulation. The Maokou Formation in northwestern Sichuan has two kinds of most favorable reservoir zone combinations: high energy grain shoal + karst monadnock inside platform or at platform margin and platform margin slope + karst slope. Based on this understanding, the planar distribution of the two kinds of reservoir zones were predicted by overlapping the favorable reservoir facies belt with paleokarst geomorphology. The study results provide a new idea and reference for the exploration deployment of the Middle Permian Maokou Formation in the Sichuan Basin.
|
|
Received: 24 January 2020
Published: 27 August 2020
|
|
|
|
|
|
| Cite this article: |
|
ZHONG Yuan,YANG Yueming,WEN Long, et al. Reconstruction and petroleum geological significance of lithofacies paleogeography and palaeokarst geomorphology of the Middle Permian Maokou Formation in northwestern Sichuan Basin, SW China[J]. Petroleum Exploration and Development, 0, (): 20201207-20201207.
|
|
|
|
| URL: |
| http://www.cpedm.com/EN/ OR http://www.cpedm.com/EN/Y0/V/I/20201207 |
[1] 肖笛,谭秀成,山述娇,等.四川盆地南部中二叠统茅口组古岩溶地貌恢复及其石油地质意义[J].地质学报,2014,88(10): 1992-2002.
XIAO Di,TAN Xiucheng,SHAN Shujiao,et al.The restoration of palaeokarst geomorphology of middle Permian Maokou Formation and its petroleum geological significance in southern Sichuan Basin[J].Acta Geologica Sinica,2014,88(10): 1992-2002.
[2] 肖笛,谭秀成,山述娇,等.四川盆地南部中二叠统茅口组二段沉积微相研究[J].沉积学报,2015,33(6): 1182-1191.
XIAO Di,TAN Xiucheng,SHAN Shujiao,et al.Sedimentary microfacies of the second member in Maokou Formation,Middle Permian,South Sichuan Basin[J].Acta Sedimentologica Sinica,2015,33(6): 1182-1191.
[3] XIAO Di,TAN Xiucheng,XI Aihua,et al.An inland facies-controlled eogenetic karst of the carbonate reservoir in the Middle Permian Maokou Formation,southern Sichuan Basin,SW China[J].Marine & Petroleum Geology,2016,72: 218-233.
[4] 宋学锋.川西北地区中二叠统茅口组沉积特征及模式[J].东北石油大学学报,2018,42(4): 66-74.
SONG Xuefeng.Sedimentary characteristics and sedimentary facies model of the middle Permian Maokou Formation in northwestern Sichuan[J].Journal of Northeast Petroleum University,2018,42(4): 66-74.
[5] 陈宗清.四川盆地中二叠统茅口组天然气勘探[J].中国石油勘探,2007,12(5): 1-11.
CHEN Zongqing.Exploration for natural gas in middle Permian Maokou Formation of Sichuan Basin[J].China Petroleum Exploration,2007,12(5): 1-11.
[6] 马永生,蔡勋育,赵培荣,等.四川盆地大中型天然气田分布特征与勘探方向[J].石油学报,2010,31(3): 347-354.
MA Yongsheng,CAI Xunyu,ZHAO Peirong,et al.Distribution and further exploration of the large-medium sized gas fields in Sichuan Basin[J].Acta Petrolei Sinica,2010,31(3): 347-354.
[7] 胡明毅,胡忠贵,魏国齐,等.四川盆地茅口组层序岩相古地理特征及储集层预测[J].石油勘探与开发,2012,39(1): 45-55.
HU Mingyi,HU Zhonggui,WEI Guoqi,et al.Sequence lithofacies paleogeography and reservoir prediction of the Maokou Formation in Sichuan Basin[J].Petroleum Exploration and Development,2012,39(1): 45-55.
[8] 沈平,张健,宋家荣,等.四川盆地中二叠统天然气勘探新突破的意义及有利勘探方向[J].天然气工业,2015,35(7): 1-9.
SHEN Ping,ZHANG Jian,SONG Jiarong,et al.Significance of new breakthrough in and favorable targets of gas exploration in the Middle Permian system,Sichuan Basin[J].Natural Gas Industry,2015,35(7): 1-9.
[9] 周进高,姚根顺,杨光,等.四川盆地栖霞组—茅口组岩相古地理与天然气有利勘探区带[J].天然气工业,2016,36(4): 8-15.
ZHOU Jingao,YAO Genshun,YANG Guang,et al.Lithofacies palaeogeography and favorable gas exploration zones of Qixia and Maokou Formation in the Sichuan Basin[J].Natural Gas Industry,2016,36(4): 8-15.
[10] 胡东风.四川盆地元坝地区茅口组台缘浅滩天然气勘探的突破与启示[J].天然气工业,2019,39(3): 1-10.
HU Dongfeng.Breakthrough in natural gas exploration in the platform margin shoal at the Maokou Fm in the Yuanba area,Sichuan Basin,and its implications[J].Natural Gas Industry,2019,39(3): 1-10.
[11] 张玺华,陈聪,张亚,等.川西北地区茅口组海槽相地质特征及其油气地质意义[J].天然气勘探与开发,2018,41(3): 42-50.
ZHANG Xihua,CHEN Cong,ZHANG Ya,et al.Geological characteristics of trough facies,Maokou Formation,northwestern Sichuan Basin: Implications for geology[J].Natural Gas Exploration and Development,2018,41(3): 42-50.
[12] 张玺华,陈聪,黄婕,等.四川盆地中二叠世广元-巴中拉张槽的发现及其油气地质意义[J].中国石油勘探,2019,24(4): 466-475.
ZHANG Xihua,CHEN Cong,HUANG Jie,et al.The discovery of Middle Permian Guangyuan-Bazhong extensional trough in the Sichuan Basin and its petroleum geological significance[J].China Petroleum Exploration,2019,24(4): 466-475.
[13] 李勇,王兴志,梅秋勇,等.成像测井资料在川西北地区中二叠统沉积相研究中的应用[J].地球物理学进展,2018,33(3): 1066-1074.
LI Yong,WANG Xingzhi,MEI Qiuyong,et al.Application of image logging in the study of Middle Permian sedimentary facies in northwest Sichuan Area[J].Progress in Geophysics,2018,33(3): 1066-1074.
[14] 霍飞,杨西燕,王兴志,等.川西北地区茅口组储层特征及其主控因素[J].成都理工大学学报(自然科学版),2018,45(1): 45-52.
HUO Fei,YANG Xiyan,WANG Xingzhi,et al.Characteristics and main controlling factors of the Middle Permian Maokou Formation reservoir in northwestern Sichuan Basin[J].Journal of Chengdu University of Technology (Science & Technology Edition),2018,45(1): 45-52.
[15] 张本健,谢继容,尹宏,等.四川盆地西部龙门山地区中二叠统碳酸盐岩储层特征及勘探方向[J].天然气工业,2018,38(2): 33-42.
ZHANG Benjian,XIE Jirong,YIN Hong,et al.Characteristics and exploration direction of the Middle Permian carbonate reservoirs in the Longmenshan mountain areas,western Sichuan Basin[J].Natural Gas Industry,2018,38(2): 33-42.
[16] 张本健,王兴志,王宇峰,等.川西北九龙山地区中二叠统储层裂缝特征及形成机制[J].成都理工大学学报(自然科学版),2019,46(4): 497-506.
ZHANG Benjian,WANG Xingzhi,WANG Yufeng,et al.Occurrence characteristics and formation mechanism of fractures in Middle Permian reservoirs in Jiulongshan area,Sichuan Basin[J].Journal of Chengdu University of Technology (Science & Technology Edition),2019,46(4): 497-506.
[17] 施泽进,张瑾,李文杰,等.四川盆地Guadalupian统碳酸盐岩稀土元素和碳-锶同位素特征及地质意义[J].岩石学报,2019,35(4): 1095-1106.
SHI Zejin,ZHANG Jin,LI Wenjie,et al.Characteristics of rare earth element and carbon-strontium isotope and their geological significance of Guadalupian carbonate in Sichuan Basin[J].Acta Petrologica Sinica,2019,35(4): 1095-1106.
[18] 唐大海,肖笛,谭秀成,等.古岩溶地貌恢复及地质意义: 以川西北中二叠统茅口组为例[J].石油勘探与开发,2016,43(5): 689-695.
TANG Dahai,XIAO Di,TAN Xiucheng,et al.Restoration of paleokarst landform and its geological significance: A case from Middle Permian Maokou Formation in northwestern Sichuan Basin[J].Petroleum Exploration and Development,2016,43(5): 689-695.
[19] XIAO Di,ZHANG Benjian,TAN Xiucheng,et al.Discovery of a shoal-controlled karst dolomite reservoir in the Middle Permian Qixia Formation,northwestern Sichuan Basin,Southwest China[J].Energy Exploration & Exploitation,2018,36(4): 686-704.
[20] XIAO Di,TAN Xiucheng,FAN Liyong,et al.Reconstructing large-scale karst paleogeomorphology at the top of the Ordovician in the Ordos Basin,China: Control on natural gas accumulation and paleogeographic implications[J].Energy Science & Engineering,2019,37(7): 3234-3254.
[21] XIAO Di,CAO Jian,LUO Bing,et al.On the dolomite reservoirs formed by dissolution: Differential eogenetic vs hydrothermal in the Lower Permian Sichuan Basin,SW China[J].AAPG Bulletin,2020,104(7): 1405-1438.
[22] 四川油气区石油地质志编写组.中国石油地质志(卷10): 四川油气区[M].北京: 石油工业出版社,1997.
The Writing Group for Petroleum Geology of Sichuan Oil and Gas Region.Petroleum Geology of China 10: Sichuan Oil and Gas Region[M].Beijing: Petroleum Industry Press,1997.
[23] 何斌,徐义刚,王雅玫,等.东吴运动性质的厘定及其时空演变规律[J].中国地质大学学报,2005,30(1): 89-96.
HE Bin,XU Yigang,WANG Yamei,et al.Nature of the Dongwu Movement and its temporal and spatial evolution[J].Journal of China University of Geosciences,2005,30(1): 89-96.
[24] 程遥.川西北地区下二叠统栖霞组白云岩储层特征及储层成因机制[D].成都: 西南石油大学,2015.
CHENG Yao.Reservoir characteristics and genetic mechanism of dolomite in lower Permian Qixia Formation in northwestern Sichuan Basin[D].Chengdu: Southwest Petroleum University,2015.
[25] 张本健.川西北部地区中二叠统栖霞组砂糖状白云岩储层特征及成因机制[D].成都: 西南石油大学,2019.
ZHANG Benjian.The origin and reservoir characteristics of middle Permian Chihsia sucrosic dolomite in the Northwestern Sichuan Basin[D].Chengdu: Southwest Petroleum University,2019.
[26] 刘宏,马腾,谭秀成,等.表生岩溶系统中浅埋藏构造-热液白云岩成因: 以四川盆地中部中二叠统茅口组为例[J].石油勘探与开发,2016,43(6): 916-927.
LIU Hong,MA Teng,TAN Xiucheng,et al.Origin of structurally controlled hydrothermal dolomite occurred in epigenetic karst system during shallow burial: An example from Middle Permian Maokou Formation,Central Sichuan Basin,SW China[J].Petroleum Exploration and Development,2016,43(6): 916-927.
[27] 陈轩,赵文智,张利萍,等.川中地区中二叠统构造热液白云岩的发现及其勘探意义[J].石油学报,2012,33(4): 562-569.
CHEN Xuan,ZHAO Wenzhi,ZHANG Liping,et al.Discovery and exploration significance of structure-controlled hydrothermal dolomites in the Middle Permian of the central Sichuan Basin[J].Acta Petrolei Sinica,2012,33(4): 562-569.
[28] 陈明启.川西南下二叠阳新统白云岩成因探讨[J].沉积学报,1989,7(2): 45-50.
CHEN Mingqi.A discussion of the origin of Yangxin dolomite of lower permian in southwest Sichuan[J].Acta Sedimentologica Sinica,1989,7(2): 45-50.
[29] 胡安平,潘立银,郝毅,等.四川盆地二叠系栖霞组、茅口组白云岩储层特征、成因和分布[J].海相油气地质,2018,23(2): 39-52.
HU Anping,PAN Liyin,HAO Yi,et al.Origin,Characteristics and distribution of dolostone reservoir in Qixia Formation and Maokou Formation,Sichuan Basin,China[J].Marine Origin Petroleum Geology,2018,23(2): 39-52.
[30] ZHONG Yuan,ZHOU Lu,TAN Xiucheng,et al.Lithofacies paleogeography mapping and reservoir prediction in tight sandstone strata: A case study from central Sichuan Basin,China[J].Geoscience Frontiers,2017,8(5): 961-975.
[31] 李三忠,张国伟,李亚林,等.秦岭造山带勉略缝合带构造变形与造山过程[J].地质学报,2002,76(4): 469-483.
LI Sanzhong,ZHANG Guowei,LI Yalin,et al.Deformation and orogeny of the Mian-Lue Suture Zone in the Qinling Orogenic Belt[J].Acta Geologica Sinica,2002,76(4): 469-483.
[32] DING L,YANG D,CAI F L,et al.Provenance analysis of the Mesozoic Hoh-Xil-Songpan-Ganzi turbidites in northern Tibet: Implications for the tectonic evolution of the eastern Paleo-Tethys Ocean[J].Tectonics,2013,32(1): 34-48.
[33] LIU Hong,TANG Yuzhe,TAN Xiucheng,et al.Paleogeomorphological reconstruction and geological implications of the weathered crust karst on the top of the Middle Triassic Leikoupo Formation in the Longgang area,Sichuan Basin,China[J].Energy Exploration & Exploitation,2018,36(4): 727-742.
[34] ARVE L.Making sense of carbonate pore systems[J].AAPG Bulletin,2006,90(9): 1381-1405.
[35] 陈景山,李忠,王振宇,等.塔里木盆地奥陶系碳酸盐岩古岩溶作用与储层分布[J].沉积学报,2007,25(6): 858-868.
CHEN Jingshan,LI Zhong,WANG Zhenyu,et al.Paleokarstification and reservoir distribution of Ordovician carbonates in Tarim Basin[J].Acta Sedimentologica Sinica,2007,25(6): 858-868.
[36] 刘宏,罗思聪,谭秀成,等.四川盆地震旦系灯影组古岩溶地貌恢复及意义[J].石油勘探与开发,2015,42(3): 283-293.
LI Hong,LUO Sicong,TAN Xiucheng,et al.Restoration of paleokarst geomorphology of Sinian Dengying Formation in Sichuan Basin and its significance,SW China[J].Petroleum Exploration and Development,2015,42(3): 283-293.
[37] 金民东,谭秀成,童明胜,等.四川盆地高石梯—磨溪地区灯四段岩溶古地貌恢复及地质意义[J].石油勘探与开发,2017,44(1): 58-68.
JIN Mindong,TAN Xiucheng,TONG Mingsheng,et al.Karst paleogeomorphology of the fourth Member of Sinian Dengying Formation in Gaoshiti-Moxi area,Sichuan Basin,SW China: Restoration and geological significance[J].Petroleum Exploration and Development,2017,44(1): 58-68. |
|
|
|
