鄂尔多斯盆地东部奥陶系马家沟组四段神木-志丹低古隆起的发现及油气勘探意义

doi:10.11743/ogg20240513

Abstract

Abstract:

Breakthroughs in hydrocarbon exploration in well Mitan 1 demonstrate that the 4^th member of the Ordovician Majiagou Formation （also referred to as the Ma 4 Member） in the eastern Ordos Basin has great potential for hydrocarbon exploration. However， the limited understanding of the paleotectonic framework of the Ma 4 Member in this region has restricted natural gas exploration in this member. Using aeromagnetic data， seismic sections， and drilling data， outcrop observation， and geochemical analysis， we identify the Shenmu-Zhidan low paleo-uplift within the Ma 4 Member in the eastern Ordos Basin， as well as the formation mechanisms of the paleo-uplift. The controlling effects of the paleo-uplift on the sedimentary reservoirs of the Ma 4 Member are thereby discussed. The results indicate that the Shenmu-Zhidan low paleo-uplift extends in the NE direction， with a width of approximately 140 km， a length of around 250 km， and an area of 3.8×10⁴ km². This low paleo-uplift was formed during the deposition of the Ma 4 Member under the combined influence of the compositional differences of the paleobasement and syndepositional normal faults. Specifically， under the effects of syndepositional normal faulting， the paleobasement in the footwall of the normal faults evolves into relatively high-lying low paleo-uplifts， while that in their hanging wall underwent subsidence and evolves into relatively low-lying depressions or sags. The Shenmu-Zhidan low paleo-uplift is relatively high-lying， containing microbial mounds， mud mounds， and psammitic shoals， which can develop into high-quality dolomite reservoirs in the presence of penecontemporaneous dolomitization. Additionally， this paleo-uplift exhibits a sequence of widely developed anhydrite layers with thicknesses varying from 1 to 12 m. The dolomite reservoirs in the Ma 4 Member within the low paleo-uplift zone are sealed by tight limestones laterally and anhydrite layers vertically， allowing them to form lithologic traps with excellent sealing performance. The lithologic traps of dolomites in the Ma 4 Member within the Shenmu-Zhidan low paleo-uplift， located in present-day structurally high parts， exhibit well-developed faults and effective sealing ability， which create favorable conditions for natural gas migration and enrichment.

Key words: sedimentary reservoir, fault, paleobasement, Shenmu-Zhidan low paleo-uplift, Ma 4 Member, Ordovician, Ordos Basin

CLC Number:

TE121.2

Zhou YU, Jingao ZHOU, Xiaorong LUO, Yongzhou LI, Xiaowei YU, Xiucheng TAN, Dongxu WU. Discovery and implications for hydrocarbon exploration of the Shenmu-Zhidan low paleo-uplift in the 4^th member of the Ordovician Majiagou Formation， eastern Ordos Basin[J]. Oil & Gas Geology, 2024, 45(5): 1383-1399.

Figures/Tables 10

Fig.1

Fig.2

Fig.3

Fig. 5

Fig. 6

Fig.7

Fig.4

Fig.8

Fig.9

Fig.10

References 45

1	何登发，周新源，杨海军，等. 塔里木盆地克拉通内古隆起的成因机制与构造类型［J］. 地学前缘， 2008， 15（2）： 207-221.
	HE Dengfa， ZHOU Xinyuan， YANG Haijun， et al. Formation mechanism and tectonic types of intracratonic paleo-uplifts in the Tarim Basin［J］. Earth Science Frontiers， 2008， 15（2）： 207-221.
2	何登发，伍顺利. 天井山古隆起的 “前世今生”：论古隆起的构造复原［J］. 地学前缘， 2019， 26（1）： 86-101.
	HE Dengfa， WU Shunli. The “past and present” of the Tianjingshan palaeo-uplift： Discussion on structural restoration of paleo-uplift［J］. Earth Science Frontiers， 2019， 26（1）： 86-101.
3	杨海军，陈永权，田军，等. 塔里木盆地轮探1井超深层油气勘探重大发现与意义［J］. 中国石油勘探， 2020， 25（2）： 62-72.
	YANG Haijun， CHEN Yongquan， TIAN Jun， et al. Great discovery and its significance of ultra-deep oil and gas exploration in Well Luntan-1 of the Tarim Basin［J］. China Petroleum Exploration， 2020， 25（2）： 62-72.
4	杨雨，文龙，宋泽章，等. 川中古隆起北部蓬莱气区多层系天然气勘探突破与潜力［J］. 石油学报， 2022， 43（10）： 1351-1368， 1394.
	YANG Yu， WEN Long， SONG Zezhang， et al. Breakthrough and potential of natural gas exploration in multi-layer system of Penglai gas area in the North of central Sichuan paleo-uplift［J］. Acta Petrolei Sinica， 2022， 43（10）： 1351-1368， 1394.
5	严威，罗冰，周刚，等. 川中古隆起寒武系沧浪铺组下段天然气地质特征及勘探方向［J］. 石油勘探与开发， 2021， 48（2）： 290-302.
	YAN Wei， LUO Bing， ZHOU Gang， et al. Natural gas geology and exploration direction of the Cambrian Lower Canglangpu Member in central Sichuan paleo-uplift， Sichuan Basin， SW China［J］. Petroleum Exploration and Development， 2021， 48（2）： 290-302.
6	于洲，丁振纯，王利花，等. 鄂尔多斯盆地奥陶系马家沟组五段膏盐下白云岩储层形成的主控因素［J］. 石油与天然气地质， 2018， 39（6）： 1213-1224.
	YU Zhou， DING Zhenchun， WANG Lihua， et al. Main factors controlling formation of dolomite reservoir underlying gypsum-salt layer in the 5th member of Ordovician Majiagou Formation， Ordos Basin［J］. Oil & Gas Geology， 2018， 39（6）： 1213-1224.
7	姚泾利，包洪平，任军峰，等. 鄂尔多斯盆地奥陶系盐下天然气勘探［J］. 中国石油勘探， 2015， 20（3）： 1-12.
	YAO Jingli， BAO Hongping， REN Junfeng， et al. Exploration of Ordovician subsalt natural gas reservoirs in Ordos Basin［J］. China Petroleum Exploration， 2015， 20（3）： 1-12.
8	付金华，孙六一，冯强汉，等. 鄂尔多斯盆地下古生界海相碳酸盐岩油气地质与勘探［M］. 北京：石油工业出版社， 2018.
	FU Jinhua， SUN Liuyi， FENG Qianghan， et al. Petroleum geology and exploration of Lower Paleozoic marine carbonate rocks in Ordos Basin［M］. Beijing： Petroleum Industry Press， 2018.
9	周立明，韩征，张道勇，等. 中国新增石油和天然气探明地质储量特征［J］. 新疆石油地质， 2022， 43（1）： 115-121.
	ZHOU Liming， HAN Zheng， ZHANG Daoyong， et al. Characteristics of incremental proven oil and natural gas geological reserves in China［J］. Xinjiang Petroleum Geology， 2022， 43（1）： 115-121.
10	张才利，刘新社，杨亚娟，等. 鄂尔多斯盆地长庆油田油气勘探历程与启示［J］. 新疆石油地质， 2021， 42（3）： 253-263.
	ZHANG Caili， LIU Xinshe， YANG Yajuan， et al. Petroleum exploration history and enlightenment of Changqing Oilfield in Ordos Basin［J］. Xinjiang Petroleum Geology， 2021， 42（3）： 253-263.
11	付金华，于洲，李程善，等. 鄂尔多斯盆地东部米探1井奥陶系马四段天然气勘探新发现及勘探方向［J］. 天然气工业， 2021， 41（12）： 17-27.
	FU Jinhua， YU Zhou， LI Chengshan， et al. New discovery and favorable areas of natural gas exploration in the 4th Member of Ordovician Majiagou Formation by Well Mitan 1 in the eastern Ordos Basin［J］. Natural Gas Industry， 2021， 41（12）： 17-27.
12	何发岐，王付斌，郭利果，等. 鄂尔多斯盆地古生代原型盆地演化与构造沉积格局变迁［J］. 石油实验地质， 2022， 44（3）： 373-384.
	HE Faqi， WANG Fubin， GUO Liguo， et al. Evolution of prototype basin and change of tectonic-sedimentary pattern in Paleozoic， Ordos Basin［J］. Petroleum Geology and Experiment， 2022， 44（3）： 373-384.
13	周进高，席胜利，邓红婴，等. 鄂尔多斯盆地寒武系—奥陶系深层海相碳酸盐岩构造—岩相古地理特征［J］. 天然气工业， 2020， 40（2）： 41-53.
	ZHOU Jingao， XI Shengli， DENG Hongying， et al. Tectonic-lithofacies paleogeographic characteristics of Cambrian-Ordovician deep marine carbonate rocks in the Ordos Basin［J］. Natural Gas Industry， 2020， 40（2）： 41-53.
14	周进高，尹陈，曾联波，等. 鄂尔多斯盆地奥陶系马家沟组四段颗粒滩发育特征及天然气勘探有利区［J］. 天然气工业， 2022， 42（7）： 17-30.
	ZHOU Jingao， YIN Chen， ZENG Lianbo， et al. Development characteristics of grain shoals and favorable gas exploration areas in the 4th Member of Ordovician Majiagou Formation in the Ordos Basin［J］. Natural Gas Industry， 2022， 42（7）： 17-30.
15	郭绪杰，吴兴宁，金武弟，等. 鄂尔多斯盆地马家沟组四段岩相古地理新认识及勘探区带优选［J］. 古地理学报， 2023， 25（1）： 105-118.
	GUO Xujie， WU Xingning， JIN Wudi， et al. New analysis of lithofacies palaeogeography and exploration area selection of the Member 4 of Majiagou Formation in Ordos Basin［J］. Journal of Palaeogeography， 2023， 25（1）： 105-118.
16	魏柳斌，陈洪德，郭玮，等. 鄂尔多斯盆地乌审旗-靖边古隆起对奥陶系盐下沉积与储层的控制作用［J］. 石油与天然气地质， 2021， 42（2）： 391-400， 521.
	WEI Liubin， CHEN Hongde， GUO Wei， et al. Wushen-Jingbian paleo-uplift and its control on the Ordovician subsalt deposition and reservoirs in Ordos Basin［J］. Oil & Gas Geology， 2021， 42（2）： 391-400， 521.
17	包洪平，邵东波，郝松立，等. 鄂尔多斯盆地基底结构及早期沉积盖层演化［J］. 地学前缘， 2019， 26（1）： 33-43.
	BAO Hongping， SHAO Dongbo， HAO Songli， et al. Basement structure and evolution of early sedimentary cover of the Ordos Basin［J］. Earth Science Frontiers， 2019， 26（1）： 33-43.
18	张成立，苟龙龙，白海峰，等. 鄂尔多斯地块基底研究新的思考与认识［J］. 岩石学报， 2021， 37（1）： 162-184.
	ZHANG Chengli， GOU Longlong， BAI Haifeng， et al. New thinking and understanding for the researches on the basement of Ordos Block［J］. Acta Petrologica Sinica， 2021， 37（1）： 162-184.
19	范立勇，单长安，李进步，等. 基于磁力资料的鄂尔多斯盆地氦气分布规律［J］. 天然气地球科学， 2023， 34（10）： 1780-1789.
	FAN Liyong， SHAN Chang’an， LI Jinbu， et al. Distribution of helium resources in Ordos Basin based on magnetic data［J］. Natural Gas Geoscience， 2023， 34（10）： 1780-1789.
20	包洪平，何登发，王前平，等. 鄂尔多斯盆地四大古隆起演化及其油气控藏意义的差异［J］. 古地理学报， 2022， 24（5）： 951-969.
	BAO Hongping， HE Dengfa， WANG Qianping， et al. Four main paleouplifts evolution in Ordos Basin and their differences in significance of oil and gas reservoir control［J］. Journal of Palaeogeography， 2022， 24（5）： 951-969.
21	何发岐，张威，丁晓琪，等. 鄂尔多斯盆地乌审旗古隆起对岩溶气藏的控制机理［J］. 石油与天然气地质， 2023， 44（2）： 276-291.
	HE Faqi， ZHANG Wei， DING Xiaoqi， et al. Controlling mechanism of Wushenqi paleo-uplift on paleo-karst gas reservoirs in Ordos Basin［J］. Oil & Gas Geology， 2023， 44（2）： 276-291.
22	张春林，邢凤存，张月巧，等. 鄂尔多斯盆地早古生代庆阳和乌审旗古隆起构造演化及其对寒武系岩相古地理的控制［J］. 石油与天然气地质， 2023， 44（1）： 89-100.
	ZHANG Chunlin， XING Fengcun， ZHANG Yueqiao， et al. Tectonic evolution of Qingyang and Wushenqi paleo-uplifts during the Early Paleozoic and its control on Cambrian lithofacies paleogeography in the Ordos Basin［J］. Oil & Gas Geology， 2023， 44（1）： 89-100.
23	张军涛，张玉银，谷宁，等. 鄂尔多斯盆地乌审旗隆起东北侧怀远运动不整合特征及其对岩溶储层形成的意义［J］. 石油与天然气地质， 2023， 44（1）： 101-109.
	ZHANG Juntao， ZHANG Yuyin， GU Ning， et al. Unconformity characteristics of Huaiyuan movement in the Northeast of Wushenqi paleo-uplift in Ordos Basin and its implications for karst reservoir generation［J］. Oil & Gas Geology， 2023， 44（1）： 101-109.
24	左滔，胡忠贵，杨威，等. 鄂尔多斯盆地中东部马家沟组盐下构造-沉积响应特征［J］. 海相油气地质， 2021， 26（2）： 141-149.
	ZUO Tao， HU Zhonggui， YANG Wei， et al. Characteristics of structural-sedimentary response of the subsalt reservoir of Majiagou Formation in central-eastern Ordos Basin［J］. Marine Origin Petroleum Geology， 2021， 26（2）： 141-149.
25	钟寿康，谭秀成，胡广，等. 古地理格局对膏盐岩-碳酸盐岩共生体系沉积分异的控制——以鄂尔多斯盆地中东部奥陶系马家沟组五段6亚段为例［J］. 石油勘探与开发， 2022， 49（4）： 728-740.
	ZHONG Shoukang， TAN Xiucheng， HU Guang， et al. Control of paleogeographic pattern on sedimentary differentiation of evaporite-carbonate symbiotic system： A case study of the sixth sub-member of Ordovician Majiagou Formation M5 Member in central-eastern Ordos Basin， NW China［J］. Petroleum Exploration and Development， 2022， 49（4）： 728-740.
26	周进高，张涛，于洲，等. 鄂尔多斯盆地奥陶系马家沟组四段沉积期岩相古地理及其控储效应［J］. 中国石油勘探， 2022， 27（4）： 61-74.
	ZHOU Jingao， ZHANG Tao， YU Zhou， et al. Lithofacies paleogeography in the deposition period of the fourth member of the Ordovician Majiagou Formation and its reservoir control effect， Ordos Basin［J］. China Petroleum Exploration， 2022， 27（4）： 61-74.
27	于洲，牛小兵，张才利，等. 鄂尔多斯盆地米脂地区奥陶系马四段储层成因与分布［J］. 天然气工业， 2021， 41（12）： 38-48.
	YU Zhou， NIU Xiaobing， ZHANG Caili， et al. Genesis and distribution of reservoirs of the 4th Member of Ordovician Majiagou Formation in the Mizhi area of the Ordos Basin［J］. Natural Gas Industry， 2021， 41（12）： 38-48.
28	SCHOLLE P A， BEBOUT D G， MOORE C H. Carbonate depositional environments［J］. Tulsa： American Association of Petroleum Geologists， 1983.
29	许杰，肖笛，苏文杰，等. 鄂尔多斯盆地东缘奥陶系马家沟组四段豹斑状云质灰岩特征及成因：以关家崖剖面为例［J］. 古地理学报， 2022， 24（2）： 261-277.
	XU Jie， XIAO Di， SU Wenjie， et al. Characteristics and genesis of leopard-spotted dolomitic limestone in the Member 4 of Ordovician Majiagou Formation： A case study from Guanjiaya section in eastern margin of Ordos Basin［J］. Journal of Palaeogeography， 2022， 24（2）： 261-277.
30	郭彦如，赵振宇，付金华，等. 鄂尔多斯盆地奥陶纪层序岩相古地理［J］. 石油学报， 2012， 33（）： 95-109.
	GUO Yanru， ZHAO Zhenyu， FU Jinhua， et al. Sequence lithofacies paleogeography of the Ordovician in Ordos Basin， China［J］. Acta Petrolei Sinica， 2012， 33（S2）： 95-109.
31	于洲，丁振纯，吴东旭，等. 鄂尔多斯盆地中东部奥陶系马家沟组沉积相演化模式研究［J］. 海相油气地质， 2017， 22（3）： 12-22.
	YU Zhou， DING Zhenchun， WU Dongxu， et al. Sedimentary facies evolution model of Ordovician Majiagou Formation， Central-Eastern Ordos Basin［J］. Marine Origin Petroleum Geology， 2017， 22（3）： 12-22.
32	于洲，胡子见，王前平，等. 鄂尔多斯盆地中东部奥陶系深层白云岩储集层特征及主控因素［J］. 古地理学报， 2023， 25（4）： 931-944.
	YU Zhou， HU Zijian， WANG Qianping， et al. Characteristics and main controlling factors of the Ordovician deep dolomite reservoirs in mid-eastern Ordos Basin［J］. Journal of Palaeogeography， 2023， 25（4）： 931-944.
33	何登发，包洪平，高山林，等. 构造-沉积分异原理及其地质意义［J］. 古地理学报， 2022， 24（5）： 920-936.
	HE Dengfa， BAO Hongping， GAO Shanlin， et al. Principles of tectonic-depositional differentiation and its geological significance［J］. Journal of Palaeogeography（Chinese Edition）， 2022， 24（5）： 920-936.
34	GAO Guoming， KANG Guofa， LI Guangquan， et al. Crustal magnetic anomaly in the Ordos region and its tectonic implications［J］. Journal of Asian Earth Sciences， 2015， 109： 63-73.
35	马润勇，朱浩平，张道法，等. 鄂尔多斯盆地基底断裂及其现代活动性［J］. 地球科学与环境学报， 2009， 31（4）： 400-408.
	MA Runyong， ZHU Haoping， ZHANG Daofa， et al. Basement faults and their recent activity in Ordos Basin［J］. Journal of Earth Sciences and Environment， 2009， 31（4）： 400-408.
36	何登发，包洪平，开百泽，等. 鄂尔多斯盆地及其邻区关键构造变革期次及其特征［J］. 石油学报， 2021， 42（10）： 1255-1269.
	HE Dengfa， BAO Hongping， Baize KAI， et al. Critical tectonic modification periods and its geologic features of Ordos Basin and adjacent area［J］. Acta Petrolei Sinica， 2021， 42（10）： 1255-1269.
37	于洲，周进高，李程善，等. 鄂尔多斯盆地西缘奥陶纪克里摩里期—乌拉力克期构造—岩相古地理特征［J］. 天然气地球科学， 2021， 32（6）： 816-825.
	YU Zhou， ZHOU Jingao， LI Chengshan， et al. Tectonic-lithofacies paleogeographic characteristics of Ordovician Kelimoli and Wulalike stages in the western edge of Ordos Basin［J］. Natural Gas Geoscience， 2021， 32（6）： 816-825.
38	汪泽成，姜华，陈志勇，等. 中上扬子地区晚震旦世构造古地理及油气地质意义［J］. 石油勘探与开发， 2020， 47（5）： 884-897.
	WANG Zecheng， JIANG Hua， CHEN Zhiyong， et al. Tectonic paleogeography of Late Sinian and its significances for petroleum exploration in the Middle-Upper Yangtze region， South China［J］. Petroleum Exploration and Development， 2020， 47（5）： 884-897.
39	周雁，付斯一，张涛，等. 鄂尔多斯盆地下古生界构造-沉积演化、古地理重建及有利成藏区带划分［J］. 石油与天然气地质， 2023， 44（2）： 264-275.
	ZHOU Yan， FU Siyi， ZHANG Tao， et al. Tectono-sedimentary evolution， paleo-geographic reconstruction and play fairway delineation of the Lower Paleozoic， Ordos Basin［J］. Oil & Gas Geology， 2023， 44（2）： 264-275.
40	王振宇，曾浩，屈海洲，等. 四川盆地北部地区寒武系沧浪铺组沉积演化［J］. 断块油气田， 2023， 30（5）： 808-815.
	WANG Zhenyu， ZENG Hao， QU Haizhou， et al. Sedimentary evolution of the Cambrian Canglangpu Formation in northern Sichuan Basin［J］. Fault-Block Oil and Gas Field， 2023， 30（5）： 808-815.
41	邓志强，胡明毅，左洺滔. 开江—梁平海槽南段长兴期沉积格局认识及油气勘探意义［J］. 断块油气田， 2022， 29（6）： 780-787.
	DENG Zhiqiang， HU Mingyi， ZUO Mingtao. The understanding of sedimentary pattern in Changxing period and significance for oil-gas exploration in the southern section of Kaijiang-Liangping trough［J］. Fault-Block Oil and Gas Field， 2022， 29（6）： 780-787.
42	牟春国，许杰，古永红，等. 鄂尔多斯盆地中东部奥陶系马家沟组四段储层特征及主控因素［J］. 石油实验地质， 2023， 45（4）： 780-790.
	MOU Chunguo， XU Jie， GU Yonghong， et al. Reservoir characteristics and main controlling factors of the fourth member of Ordovician Majiagou Formation in the central and eastern Ordos Basin［J］. Petroleum Geology and Experiment， 2023， 45（4）： 780-790.
43	于洲，罗晓容，周进高，等. 鄂尔多斯盆地奥陶系马家沟组四段优质白云岩储层发育特征及成因机制［J］. 天然气工业， 2024， 44（2）： 30-39.
	YU Zhou， LUO Xiaorong， ZHOU Jingao， et al. Development characteristics and genetic mechanisms of high-quality dolomite reservoirs in the 4th Member of Ordovician Majiagou Formation in the Ordos Basin［J］. Natural Gas Industry， 2024， 44（2）： 30-39.
44	郭彦如，付金华，魏新善，等. 鄂尔多斯盆地奥陶系碳酸盐岩成藏特征与模式［J］. 石油勘探与开发， 2014， 41（4）： 393-403.
	GUO Yanru， FU Jinhua， WEI Xinshan， et al. Natural gas accumulation and models in Ordovician carbonates， Ordos Basin， China［J］. Petroleum Exploration and Development， 2014， 41（4）： 393-403.
45	周进高，李明瑞，吴东旭，等. 鄂尔多斯盆地东部下奥陶统马家沟组盐下含气系统特征与勘探潜力［J］. 天然气工业， 2023， 43（3）： 34-45.
	ZHOU Jingao， LI Mingrui， WU Dongxu， et al. Characteristics and exploration potential of subsalt gas-bearing system in Majiagou Formation of Middle Ordovician in the eastern Ordos Basin［J］. Natural Gas Industry， 2023， 43（3）： 34-45.

[1]	Xinrui LYU, Jianfang SUN, Hongkai LI, Dongling XIA, Xingwei WU, Kelong HAN, Jiagen HOU. Fine geological modelling technology for deep fractured-vuggy carbonate oil reservoirs in the Tarim Basin [J]. Oil & Gas Geology, 2024, 45(5): 1195-1210.
[2]	Shang DENG, Huabiao QIU, Dawei LIU, Jun HAN, Zhixing RU, Weilong PENG, Qing BIAN, Cheng HUANG. Advances in research on the genetic mechanisms of intracratonic strike-slip fault system and their control on hydrocarbon accumulation： A case study of the northern Tarim Basin [J]. Oil & Gas Geology, 2024, 45(5): 1211-1225.
[3]	Juncheng QIAO, Shaoying CHANG, Jianhui ZENG, Peng CAO, Keliang DONG, Mengxiu WANG, Jining YANG, Yazhou LIU, Hui LONG, Ting AN, Rui YANG, Lin WEN. Origin of differential hydrocarbon accumulation in ultra-deep carbonate reservoirs along strike-slip fault zones in the Fuman area， northern Tarim Basin [J]. Oil & Gas Geology, 2024, 45(5): 1226-1246.
[4]	Hailong MA, Lin JIANG, Wenlong DING, Pengyuan HAN, Zhen WANG, Changjian ZHANG, Huan WEN, Liming DING, Jie LI. Deformation characteristics and hydrocarbon accumulation models of the Lan’ga and Hotan River fault zones in the Tarim Basin [J]. Oil & Gas Geology, 2024, 45(5): 1259-1274.
[5]	Qin ZHANG, Zhen QIU, Qun ZHAO, Dazhong DONG, Wen LIU, Weiliang KONG, Zhenglian PANG, Wanli GAO, Guangyin CAI, Yongzhou LI, Xingtao LI, Wenji LIN. Different characteristics and formation mechanisms of transitional and marine shale gas sweet spots [J]. Oil & Gas Geology, 2024, 45(5): 1400-1416.
[6]	Wenya LYU, Xiaoping AN, Yanxiang LIU, Desheng LI, Lianbo ZENG, Zhanhong HUANGFU, Yinghang TANG, Kening ZHANG, Yuyin ZHANG. Dynamic responses and evolutionary characteristics of waterflood-induced fractures in tight sandstone reservoirs： A case study of oil reservoirs in the 8th member of the Yanchang Formation， well block L， Jiyuan oilfield， Ordos Basin [J]. Oil & Gas Geology, 2024, 45(5): 1431-1446.
[7]	Yongjin GAO, Chengming YIN, Lihong LIU, Darong XU, Youxing YANG, Yuanyin ZHANG, Zezhang SONG, Mantong ZHEN. Characteristics of source rocks in the Cambrian Xiaoerbulake Formation in the northwestern Tarim Basin [J]. Oil & Gas Geology, 2024, 45(4): 1064-1078.
[8]	Xinhui Xie, Hucheng Deng, Lanxiao Hu, Yong Li, Jinxin Mao, Jiajie Liu, Xin Zhang, Boyang Li. Micromechanical characteristics and classification of the grains of lacustrine fine-grained sedimentary rocks： A case study of shales in the 7^th member of the Upper Triassic Yanchang Formation， Ordos Basin [J]. Oil & Gas Geology, 2024, 45(4): 1079-1088.
[9]	Chenglong LIU, Yanzhong WANG, Huaiyu YANG, Yingchang CAO, Shuping WANG, Chaofan GUO, Hao GUO, Zhaoxiang CHEN, Linkun SONG, Xinyuan HUANG. Fine characterization and lithologic trap distribution patterns of delta-beach bar sedimentary system under high-precision sequence constraints： A case study of the upper submember of the 4^th member of the Shahejie Formation in the eastern segment of the southern gentle slope of Dongying Sag， Jiyang Depression， Bohai Bay Basin [J]. Oil & Gas Geology, 2024, 45(4): 1121-1141.
[10]	Rui LOU, Yonghe SUN, Zhongqiao ZHANG. Segmented growth of low-angle normal faults in the western Bonan swell，Bohai Bay Basin and its petroleum geological significance [J]. Oil & Gas Geology, 2024, 45(3): 710-721.
[11]	Weitao WU, Yansong FENG, Shixiang FEI, Yifei WANG, Heyuan WU, Xudong YANG. Enrichment factors and play fairway mapping for tight gas in the 5^th member of the Permian Shiqianfeng Formation， Shenmu gas field， Ordos Basin [J]. Oil & Gas Geology, 2024, 45(3): 739-751.
[12]	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.
[13]	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.
[14]	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.
[15]	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.

Discovery and implications for hydrocarbon exploration of the Shenmu-Zhidan low paleo-uplift in the 4^th member of the Ordovician Majiagou Formation， eastern Ordos Basin

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 10

References 45

Related Articles 15

Recommended Articles

Metrics

Discovery and implications for hydrocarbon exploration of the Shenmu-Zhidan low paleo-uplift in the 4th member of the Ordovician Majiagou Formation， eastern Ordos Basin

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 10

References 45

Related Articles 15

Recommended Articles

Metrics

Discovery and implications for hydrocarbon exploration of the Shenmu-Zhidan low paleo-uplift in the 4^th member of the Ordovician Majiagou Formation， eastern Ordos Basin