鄂尔多斯盆地佳县地区深部煤层地应力特征及其对储层物性的控制

doi:10.11743/ogg20240611

Abstract

Abstract:

JThe Jiaxian area emerges as a new target for the exploration and development of deep coalbed methane （CBM） in the Ordos Basin. However， the lack of studies on its in-situ stress and the undefined relationships between the in-situ stress and the physical properties of coal seams have hindered efficient CMB production in this area. Using data from logging and core analysis， we develop a logging-based in-situ stress calculation model as constructed by the combined spring model， investigate the in-situ stress distribution in the area and explore the controlling effects of in-situ stress on the fissures， porosity， and permeability of coal reservoirs. The results indicate that the planar distribution of the in-situ stress in the No. 8 coal seam within the Jiaxian area features high in the west and low in the east. The three principal stresses decrease in the order of vertical principal stress （averaging 56.72 MPa）， maximum horizontal principal stress （averaging 41.08 MPa）， and minimum horizontal principal stress （averaging 37.77 MPa）， suggesting a normal-faulting stress regime. The No. 8 coal seam has an average coefficient of lateral pressure of 0.70， indicating that this coal seam resides in a tensile setting overall， which creates favorable conditions for the formation of tensile fissures. The relationships between the reservoir physical properties and various in-situ stress parameters indicate that the physical properties of the No. 8 coal seam in the study area result from the combined effects of the three principal stresses， in which the horizontal principal stress play a predominant role. The porosity and permeability of the coal reservoirs trend downward with an increase in the lateral pressure coefficient and a decrease in the horizontal principal stress difference. The test results of deep CBM content in the study area indicate that the lateral pressure coefficient and the horizontal principal stress difference are reliable indicators of the physical properties of coal reservoirs， establishing them as effective tools for identifying the geologic sweet spots of deep CBM.

Key words: porosity, permeability, lateral pressure coefficient, in-situ stress, deep coalbed methane （CBM）, Jiaxian area, Ordos Basin

CLC Number:

TE122.2

Pengwei MOU, Peijie LI, Yanbin YAO, Dameng LIU, Limin MA, Xiaoxiao SUN, Yongkai QIU. In-situ stress in deep coal seams and its control on reservoir physical properties in the Jiaxian area， Ordos Basin[J]. Oil & Gas Geology, 2024, 45(6): 1640-1652.

Figures/Tables 14

Fig.1

Fig.2

Table 1

Fig.3

Fig.4

Fig.5

Fig.6

Fig.7

Fig.8

Table 2

Fig. 9

Fig. 10

Fig. 11

Table 3

References 49

1	郭旭升，周德华，赵培荣，等. 鄂尔多斯盆地石炭系-二叠系煤系非常规天然气勘探开发进展与攻关方向［J］. 石油与天然气地质， 2022， 43（5）： 1013-1023.
	GUO Xusheng， ZHOU Dehua， ZHAO Peirong， et al. Progresses and directions of unconventional natural gas exploration and development in the Carboniferous-Permian coal measure strata， Ordos Basin［J］. Oil & Gas Geology， 2022， 43（5）： 1013-1023.
2	何发岐，董昭雄. 深部煤层气资源开发潜力——以鄂尔多斯盆地大牛地气田为例［J］. 石油与天然气地质， 2022， 43（2）： 277-285.
	HE Faqi， DONG Zhaoxiong. Development potential of deep coalbed methane： A case study in the Daniudi gas field， Ordos Basin［J］. Oil & Gas Geology， 2022， 43（2）： 277-285.
3	罗平亚，朱苏阳. 中国建立千亿立方米级煤层气大产业的理论与技术基础［J］. 石油学报， 2023， 44（11）： 1755-1763.
	LUO Pingya， ZHU Suyang. Theoretical and technical fundamentals of a 100 billion-cubic-meter-scale large industry of coalbed methane in China［J］. Acta Petrolei Sinica， 2023， 44（11）： 1755-1763.
4	唐淑玲，汤达祯，杨焦生，等. 鄂尔多斯盆地大宁—吉县区块深部煤储层孔隙结构特征及储气潜力［J］. 石油学报， 2023， 44（11）： 1854-1866， 1902.
	TANG Shuling， TANG Dazhen， YANG Jiaosheng， et al. Pore structure characteristics and gas storage potential of deep coal reservoirs in Daning-Jixian block of Ordos Basin［J］. Acta Petrolei Sinica， 2023， 44（11）： 1854-1866， 1902.
5	徐宏杰，桑树勋，易同生，等. 黔西地区煤层埋深与地应力对其渗透性控制机制［J］. 地球科学， 2014， 39（11）： 1507-1516.
	XU Hongjie， SANG Shuxun， YI Tongsheng， et al. Control mechanism of buried depth and in-situ stress for coal reservoir permeability in western Guizhou［J］. Earth Science， 2014， 39（11）： 1507-1516.
6	CHEN Shida， TANG Dazhen， TAO Shu， et al. In-situ stress measurements and stress distribution characteristics of coal reservoirs in major coalfields in China： Implication for coalbed methane （CBM） development［J］. International Journal of Coal Geology， 2017， 182： 66-84.
7	邹贤军，陈亚琳. 四川盆地涪陵地区龙马溪组页岩横向各向同性地应力测井评价方法［J］. 天然气地球科学， 2018， 29（12）： 1775-1780， 1808.
	ZOU Xianjun， CHEN Yalin. Geostress logging evaluation method of Longmaxi Formation shale in Fuling area based on transversely isotropic model， Sichuan Basin［J］. Natural Gas Geoscience， 2018， 29（12）： 1775-1780， 1808.
8	范翔宇，么勃卫，张千贵，等. 基于声波信号预测Kaiser应力点的水平地应力［J］. 西南石油大学学报（自然科学版）， 2022， 44（2）： 40-48.
	FAN Xiangyu， YAO Bowei， ZHANG Qiangui， et al. Study on the calculated method of horizontal in-situ stress based on the Kaiser stress point predicted by acoustic signal［J］. Journal of Southwest Petroleum University（Science & Technology Edition）， 2022， 44（2）： 40-48.
9	陈世达，汤达祯，陶树，等. 煤层气储层地应力场宏观分布规律统计分析［J］. 煤炭科学技术， 2018， 46（6）： 57-63.
	CHEN Shida， TANG Dazhen， TAO Shu， et al. Statistic analysis on macro distribution law of geostress field in coalbed methane reservoir［J］. Coal Science and Technology， 2018， 46（6）： 57-63.
10	常闯，李松，汤达祯，等. 基于测井参数的煤储层地应力计算方法研究——以延川南区块为例［J］. 煤田地质与勘探， 2023， 51（5）： 23-32.
	CHANG Chuang， LI Song， TANG Dazhen， et al. In-situ stress calculation for coal reservoirs based on log parameters： A case study of the southern Yanchuan Block［J］. Coal Geology & Exploration， 2023， 51（5）： 23-32.
11	蔡美峰. 地应力测量原理和方法的评述［J］. 岩石力学与工程学报， 1993， 12（3）： 275-283.
	CAI Meifeng. Review of principles and methods for rock stress measurement［J］. Chinese Journal of Rock Mechanics and Engineering， 1993， 12（3）： 275-283.
12	ZHAO Zheng， LIU Dameng， WANG Bo， et al. Comprehensive evaluation of in situ stress in the Daning-Jixian area and its control on the distribution of coal-measure gas［J］. Natural Resources Research， 2024， 33（1）： 347-364.
13	JU Wei， JIANG Bo， QIN Yong， et al. The present-day in-situ stress field within coalbed methane reservoirs， Yuwang Block， Laochang Basin， South China［J］. Marine and Petroleum Geology， 2019， 102： 61-73.
14	ZHAO Junlong， TANG Dazhen， XU Hao， et al. Characteristic of in situ stress and its control on the coalbed methane reservoir permeability in the eastern margin of the Ordos Basin， China［J］. Rock Mechanics and Rock Engineering， 2016， 49（8）： 3307-3322.
15	孙良忠，康永尚，王金，等. 地应力类型垂向转换及其对煤储层渗透率控制作用［J］. 高校地质学报， 2017， 23（1）： 148-156.
	SUN Liangzhong， KANG Yongshang， WANG Jin， et al. Vertical transformation of in-situ stress types and its control on coalbed reservoir permeability［J］. Geological Journal of China Universities， 2017， 23（1）： 148-156.
16	李松，汤达祯，许浩，等. 应力条件制约下不同埋深煤储层物性差异演化［J］. 石油学报， 2015， 36（）： 68-75.
	LI Song， TANG Dazhen， XU Hao， et al. Evolution of physical differences in various buried depth of coal reservoirs under constraint of stress［J］. Acta Petrolei Sinica， 2015， 36（S1）： 68-75.
17	叶建平，史保生，张春才. 中国煤储层渗透性及其主要影响因素［J］. 煤炭学报， 1999， 24（2）： 8-12.
	YE Jianping， SHI Baosheng， ZHANG Chuncai. Coal reservoir permeability and its controlled factors in China［J］. Journal of China Coal Society， 1999， 24（2）： 8-12.
18	李国永，姚艳斌，王辉，等. 鄂尔多斯盆地神木-佳县区块深部煤层气地质特征及勘探开发潜力［J］. 煤田地质与勘探， 2024， 52（2）： 70-80.
	LI Guoyong， YAO Yanbin， WANG Hui， et al. Deep coalbed methane resources in the Shenmu-Jiaxian block， Ordos Basin， China： Geological characteristics and potential for exploration and exploitation［J］. Coal Geology & Exploration， 2024， 52（2）： 70-80.
19	张和伟，申建，李可心，等. 鄂尔多斯盆地临兴西区深煤层地应力场特征及应力变化分析［J］. 地质与勘探， 2020， 56（4）： 809-818.
	ZHANG Hewei， SHEN Jian， LI Kexin， et al. Characteristics of the in-situ stress field and stress change of deep coal seams in the western Linxing area， Ordos Basin［J］. Geology and Exploration， 2020， 56（4）： 809-818.
20	廖新武，刘奇，李超，等. 渤中25-1低渗透油田地应力分布特征及对开发的影响［J］. 地质力学学报， 2015， 21（1）： 30-37.
	LIAO Xinwu， LIU Qi， LI Chao， et al. Distribution of the present stress in low permeability oilfield of Bozhong 25-1 and its effect on development［J］. Journal of Geomechanics， 2015， 21（1）： 30-37.
21	杨红，许亮，何衡，等. 利用测井、压裂资料求取储层地应力的方法［J］. 断块油气田， 2014， 21（4）： 509-512.
	YANG Hong， XU Liang， HE Heng， et al. Method for obtaining ground stress of reservoir using logging and fracturing data［J］. Fault-Block Oil and Gas Field， 2014， 21（4）： 509-512.
22	邢力仁，柳迎红，王存武，等. 基于测井信息的煤层气区块地应力预测与综合评价［J］. 煤炭科学技术， 2018， 46（10）： 216-221.
	XING Liren， LIU Yinghong， WANG Cunwu， et al. Geostress prediction and comprehensive evaluation based on logging information in coalbed methane block［J］. Coal Science and Technology， 2018， 46（10）： 216-221.
23	徐珂. 南堡凹陷高尚堡油藏现今地应力研究［D］. 青岛：中国石油大学（华东）， 2019.
	XU Ke. Current in-situ stress of Gaoshangpu reservoir， Nanpu Sag， Bohai Bay Basin， China［D］. Qingdao： China University of Petroleum（East China）， 2019.
24	尹帅，刘翰林，何建华，等. 动静态地质力学方法约束的致密油砂岩地应力综合评估［J］. 地球科学进展， 2023， 38（12）： 1285-1296.
	YIN Shuai， LIU Hanlin， HE Jianhua， et al. Comprehensive evaluation of geo-stress in tight oil sandstone under constraints of dynamic-static geomechanical methods［J］. Advances in Earth Science， 2023， 38（12）： 1285-1296.
25	ANDERSON E M. The dynamics of faulting and dyke formation with applications to Britain［M］. 2nd ed. Edinburgh： Oliver and Boyd， 1951.
26	高秋菊，宋亮，刘显太，等. 致密油藏储层地应力预测及微地震监测［M］. 青岛：中国海洋大学出版社， 2020.
	GAO Qiuju， SONG Liang， LIU Xiantai， et al. Prediction of in-situ stress and microseismic monitoring in tight oil reservoirs［M］. Qingdao： China Ocean University Press， 2020.
27	陈宝宁，王宁. 异常流体压力研究进展与方法实践［J］. 油气地质与采收率， 2001， 8（1）： 35-37.
	CHEN Baoning， WANG Ning. Research advance and method practice of anomalous fluid pressure［J］. Petroleum Geology and Recovery Efficiency， 2001， 8（1）： 35-37.
28	许玉强，何保伦，王䶮舒，等. 深度学习与Eaton法联合驱动的地层孔隙压力预测方法［J］. 中国石油大学学报（自然科学版）， 2023， 47（6）： 50-59.
	XU Yuqiang， HE Baolun， WANG Yanshu， et al. A novel prediction method of formation pore pressure driven by deep learning and Eaton method［J］. Journal of China University of Petroleum （Edition of Natural Science）， 2023， 47（6）： 50-59.
29	刘彦飞. 韩城地区深/浅部煤层气开发地质条件与产能对比研究［D］. 北京：中国地质大学（北京）， 2016.
	LIU Yanfei. A comparative study on the development geologic conditions and productivity of deep and shallow CBM wells in Hancheng area［D］. Beijing： China University of Geosciences（Beijing）， 2016.
30	尹帅，丁文龙，王濡岳，等. 海陆过渡相致密砂岩储层Biot系数自适应预测方法研究［J］. 石油物探， 2016， 55（6）： 861-868.
	YIN Shuai， DING Wenlong， WANG Ruyue， et al. A new prediction method of Biot coefficient for marine-land transition phase tight sandstone reservoir based on the self-adapt method［J］. Geophysical Prospecting for Petroleum， 2016， 55（6）： 861-868.
31	余雄鹰，王越之，李自俊. 声波法计算水平主地应力值［J］. 石油学报， 1996， 17（3）： 59-63.
	YU Xiongying， WANG Yuezhi， LI Zijun. Calculation of horizontal principal in-situ stress with acoustic wave method［J］. Acta Petrolei Sinica， 1996， 17（3）： 59-63.
32	周广照，谢元德，陈庆，等. 沁水盆地南部海陆过渡相煤系地层横波波速预测［J］. 大庆石油地质与开发， 2017， 36（4）： 128-136.
	ZHOU Guangzhao， XIE Yuande， CHEN Qing， et al. Prediction of the shear wave velocity for the sea-land transitional facies coal measure strata in South Qinshui Basin［J］. Petroleum Geology & Oilfield Development in Daqing， 2017， 36（4）： 128-136.
33	姜波，汪吉林，屈争辉，等. 大宁—吉县地区地应力特征及其对煤储层渗透性的影响［J］. 地学前缘， 2016， 23（3）： 17-23.
	JIANG Bo， WANG Jilin， QU Zhenghui， et al. The stress characteristics of the Daning-Jixian area and its influence on the permeability of the coal reservoir［J］. Earth Science Frontiers， 2016， 23（3）： 17-23.
34	高向东，孙昊，王延斌，等. 临兴地区深部煤储层地应力场及其对压裂缝形态的控制［J］. 煤炭科学技术， 2022， 50（8）： 140-150.
	GAO Xiangdong， SUN Hao， WANG Yanbin， et al. In-situ stress field of deep coal reservoir in Linxing area and its control on fracturing crack［J］. Coal Science and Technology， 2022， 50（8）： 140-150.
35	陈世达，汤达祯，侯伟，等. 深部煤层气地质条件特殊性与储层工程响应［J］. 石油学报， 2023， 44（11）： 1993-2006.
	CHEN Shida， TANG Dazhen， HOU Wei， et al. Geological particularity and reservoir engineering response of deep coalbed methane［J］. Acta Petrolei Sinica， 2023， 44（11）： 1993-2006.
36	BROWN E T， HOEK E. Trends in relationships between measured in-situ stresses and depth［J］. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts， 1978， 15（4）： 211-215.
37	刘大锰，周三栋，蔡益栋，等. 地应力对煤储层渗透性影响及其控制机理研究［J］. 煤炭科学技术， 2017， 45（6）： 1-8， 23.
	LIU Dameng， ZHOU Sandong， CAI Yidong， et al. Study on effect of geo-stress on coal permeability and its controlling mechanism［J］. Coal Science and Technology， 2017， 45（6）： 1-8， 23.
38	涂志民，王兴刚，车延前，等. 三塘湖盆地低阶煤煤层气成藏主控因素［J］. 新疆石油地质， 2021， 42（6）： 683-689.
	TU Zhimin， WANG Xinggang， CHE Yanqian， et al. Controlling factors on CBM accumulation in low-rank coal in Santanghu Basin［J］. Xinjiang Petroleum Geology， 2021， 42（6）： 683-689.
39	LI Song， QIN Yong， TANG Dazhen， et al. A comprehensive review of deep coalbed methane and recent developments in China［J］. International Journal of Coal Geology， 2023， 279： 104369.
40	邓泽，王红岩，姜振学，等. 深部煤储层孔裂隙结构对煤层气赋存的影响——以鄂尔多斯盆地东缘大宁-吉县区块为例［J］. 煤炭科学技术， 2024， 52（8）： 106-123.
	DENG Ze， WANG Hongyan， JIANG Zhenxue， et al. Influence of deep coal pore and fracture structure on occurrence of coalbed methane： A case study of Daning-Jixian Block in eastern margin of Ordos Basin［J］. Coal Science and Technology， 2024， 52（8）： 106-123.
41	曾联波，巩磊，宿晓岑，等. 深层-超深层致密储层天然裂缝分布特征及发育规律［J］. 石油与天然气地质， 2024， 45（1）： 1-14.
	ZENG Lianbo， GONG Lei， SU Xiaocen， et al. Natural fractures in deep to ultra-deep tight reservoirs： Distribution and development［J］. Oil & Gas Geology， 2024， 45（1）： 1-14.
42	杨延辉，孟召平，陈彦君，等. 沁南—夏店区块煤储层地应力条件及其对渗透性的影响［J］. 石油学报， 2015， 36（z1）： 91-96.
	YANG Yanhui， MENG Zhaoping， CHEN Yanjun， et al. Geo-stress conditions of coal reservoirs in Qinnan-Xiadian block and its influences on permeability［J］. Acta Petrolei Sinica， 2015， 36（z1）： 91-96.
43	李鑫，魏永恒，王文峰，等. 库拜煤田阿艾矿区煤储层地应力特征及其对储层物性的制约［J］. 新疆大学学报（自然科学版中英文）， 2022， 39（6）： 727-735， 746.
	LI Xin， WEI Yongheng， WANG Wenfeng， et al. In-situ stress characters of CBM reservoir in the flexure basin of Kubai coalfield and its constraints on reservoir physical properties［J］. Journal of Xinjiang University（Natural Science Edition in Chinese and English）， 2022， 39（6）： 727-735， 746.
44	唐书恒. 煤储层渗透性影响因素探讨［J］. 中国煤田地质， 2001， 13（1）： 28-30， 86.
	TANG Shuheng. Probe into the influence factors on permeability of coal reservoirs［J］. Coal Geology of China， 2001， 13（1）： 28-30， 86.
45	文卓，康永尚，邓泽，等. 中国含煤盆地浅—中深部现今地应力特点和分布规律［J］. 地质论评， 2019， 65（3）： 729-742.
	WEN Zhuo， KANG Yongshang， DENG Ze， et al. Characteristics and distribution of current in-situ stress at shallow—Medium depth in coal-bearing basins in China［J］. Geological Review， 2019， 65（3）： 729-742.
46	杨兆中，杨苏，张健，等. 800m以深直井煤储层压裂特征分析［J］. 煤炭学报， 2016， 41（1）： 100-104.
	YANG Zhaozhong， YANG Su， ZHANG Jian， et al. Fracturing characteristics analysis of 800 meters deeper coalbed methane vertical wells［J］. Journal of China Coal Society， 2016， 41（1）： 100-104.
47	闵超，代博仁，石咏衡，等. 基于聚类匹配的煤层气压裂效果主控因素识别［J］. 特种油气藏， 2022， 29（4）： 135-141.
	MIN Chao， DAI Boren， SHI Yongheng， et al. Identification of main controlling factors of coalbed methane fracturing effect based on cluster matching［J］. Special Oil & Gas Reservoirs， 2022， 29（4）： 135-141.
48	姚艳斌，王辉，杨延辉，等. 煤层气储层可改造性评价——以郑庄区块为例［J］. 煤田地质与勘探， 2021， 49（1）： 119-129.
	YAO Yanbin， WANG Hui， YANG Yanhui， et al. Evaluation of the hydro-fracturing potential for coalbed methane reservoir： A case study of Zhengzhuang CBM field［J］. Coal Geology & Exploration， 2021， 49（1）： 119-129.
49	陈世达，汤达祯，陶树. 原位地应力约束下煤储层自封闭作用及其成藏效应［J］. 煤炭学报， 2021， 46（8）： 2466-2478.
	CHEN Shida， TANG Dazhen， TAO Shu. Self-sealing of coals and CBM accumulation effect constrained by in situ stress［J］. Journal of China Coal Society， 2021， 46（8）： 2466-2478.

深度/m	最大水平主应力/MPa	最小水平主应力/MPa
2 227.42	42.54	39.64
2 230.40	38.49	36.82

井号	样品编号	氦气孔隙度/%	氦气渗透率/（10^-3 μm²）
J10	J10S1	6.50	—
	J10S2	6.66	—
	J10S3	—	0.85
	J10S4	6.90	—
	J10S5	6.64	—
J13	J13S1	8.63	—
	J13S2	8.18	—
	J13S3	7.75	—
	J13S4	8.16	—
	J13S5	—	1.61
J37	J37S1	6.96	1.22
	J37S2	—	2.06
	J37S3	7.40	0.79
	J37S4	6.92	1.30

地质甜点区类型	井号	平均含气量/（m³/t）
Ⅰ类	JN2	23.5
	J6-1	22.8
	J19	21.4
Ⅱ类	J10	21.1

[1]	Xusheng GUO, Peirong ZHAO, Baojian SHEN, Zengqin LIU, Bing LUO, Shihu ZHAO, Jiaqi ZHANG, Jiayuan HE, Weishu FU, Haipeng WEI, Jiong LIU, Xinjun CHEN, Jincheng YE. Geological features and exploration practices of deep coalbed methane in China [J]. Oil & Gas Geology, 2024, 45(6): 1511-1523.
[2]	Dameng LIU, Zihao WANG, Jiaming CHEN, Feng QIU, Kai ZHU, Lingjie GAO, Keyu ZHOU, Shaobo XU, Fengrui SUN. Classification of macerals and microfractures in deep coal seams based on ResNet： A case study of the No.8 coal seam of the Carboniferous Benxi Formation in the Ordos Basin [J]. Oil & Gas Geology, 2024, 45(6): 1524-1536.
[3]	Yahui LI. Exploration practices of and recent production breakthroughs in deep middle-rank coalbed methane in the Daniudi gas field，Ordos Basin [J]. Oil & Gas Geology, 2024, 45(6): 1555-1566.
[4]	Faqi HE, Tao LEI, Rong QI, Bingwei XU, Xiaohui LI, Ru ZHANG. Breakthroughs and key technology in deep coalbed methane exploration in the Daniudi gas field in the Ordos Basin [J]. Oil & Gas Geology, 2024, 45(6): 1567-1576.
[5]	Xiaobing NIU, Hui ZHANG, Huaichang WANG, Jianling HU, Chenjun WU, Weibo ZHAO, Bo PAN. Characteristics and genesis of vertical heterogeneity in a coal seam of the Carboniferous Benxi Formation， eastern Ordos Basin： A case study of well M172 [J]. Oil & Gas Geology, 2024, 45(6): 1577-1589.
[6]	Mingrui LI, Yunhe SHI, Liyong FAN, Xianduo DAI, Xueyuan JING, Yi ZHANG. Comparison of main reservoir characteristics between deep coal-rock gas of the No. 8 coal seam of the Upper Paleozoic Benxi Formation and tight sand gas reservoirs， Ordos Basin [J]. Oil & Gas Geology, 2024, 45(6): 1590-1604.
[7]	Yuting HOU, Guoxiao ZHOU, Daojun HUANG, Yanqing WANG, Pengshuai JIAO. Geological characteristics of coal-rock gas accumulation in the Nalinhe area， Ordos Basin [J]. Oil & Gas Geology, 2024, 45(6): 1605-1616.
[8]	Daojun HUANG, Guoxiao ZHOU, Zhaobiao YANG, Junyu GU, Xueyuan JING, Jianan WANG. Geochemical characterization of gas-water output from deep coalrock methane wells in the Ordos Basin and its geological responses [J]. Oil & Gas Geology, 2024, 45(6): 1617-1627.
[9]	Shihu ZHAO, Zengqin LIU, Baojian SHEN, Bing LUO, Gang CHEN, Xinjun CHEN, Jiaqi ZHANG, Junyu WAN, Ziyi LIU, Youxiang LIU. Geological characteristics and exploration potential of deep coalbed methane in the slope area of the northeastern Ordos Basin [J]. Oil & Gas Geology, 2024, 45(6): 1628-1639.
[10]	Ping CHEN, Wei LI, Yijun ZHOU, Wenrui PEI, Xiaowei YU, Wei HAN, Guoping LIANG, Pengcheng LU, Lei WANG. Formation and evolution of the Wushenqi and Central paleo-uplifts， Ordos Basin and their control on hydrocarbon accumulation [J]. Oil & Gas Geology, 2024, 45(6): 1653-1664.
[11]	Long WEN, Ying MING, Haofei SUN, Benjian ZHANG, Xiao CHEN, Shida CHEN, Song LI, Haiqi LI. Geological characteristics and exploration potential of deep coalbed methane in the Permian Longtan Formation， Sichuan Basin： A case study of well NT1H [J]. Oil & Gas Geology, 2024, 45(6): 1678-1685.
[12]	Duo WANG, Zhidi LIU, Chengwang WANG, Tianding LIU, Gaojie CHEN, Jinmei HAO, Bowen SUN. Logging-based evaluation for geological-engineering sweet spots in deep coal reservoirs of the DJ block， Ordos Basin [J]. Oil & Gas Geology, 2024, 45(6): 1772-1788.
[13]	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.
[14]	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.
[15]	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.

In-situ stress in deep coal seams and its control on reservoir physical properties in the Jiaxian area， Ordos Basin

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 14

References 49

Related Articles 15

Recommended Articles

Metrics