Hydrocarbon accumulation pattern and exploration potential in Ghardaia area,Oued Mya Basin

doi:10.3969/j.issn.1672-7703.2024.06.003

Abstract

Abstract: Ghardaia area, located in the northern Algeria, is a prolific zone in Oued Mya Basin, showing great potential for the exploration and development of oil and gas resources. It is necessary to conduct a systematic study of the petroleum geological characteristics and hydrocarbon accumulation rules, as well as the exploration potential in this area, which has important significance for investing in the Algerian oil and gas business of Chinese oil and gas enterprises. Based on the comprehensive study of geological, geochemical, and relevant literature data of Oued Mya Basin, a detailed analysis of controlling factors for hydrocarbon accumulation has been conducted, including the distribution of source rocks and their hydrocarbon generation potential, reservoir distribution, and hydrocarbon accumulation timing and rules. In addition,some geological maps have been prepared for the main source rocks, reservoirs, and hydrocarbon accumulation patterns, and the hydrocarbon generation potential has been calculated. Furthermore, the hydrocarbon accumulation combination and migration rules have been analyzed. The study results show that a set of high-quality source rock with high organic abundance was developed at the base Silurian, which was dominated by oil generation in the northeastern basin and gas generation in the southern basin, and the primary hydrocarbon kitchen was located in the southeastern part of the study area. The main reservoirs include A sand group in T2 Formation and B sand group in T2 Formation in the Middle Triassic, and the Ordovician Harmar Formation quartz sandstone. The vertical hydrocarbon migration occurred through faults connecting to source rock and then migrated laterally along the Triassic transport layer. As a result, the hydrocarbon accumulation pattern of “hydrocarbon supply by mature shale, long-distance migration, and late-stage enrichment”. The future exploration efforts should focus on structural traps of the Triassic A sand group, while simultaneously emphasizing the exploration of the Triassic B sand group, as well as the Ordovician tight reservoir and shale oil and gas.

Key words: Oued Mya Basin, Ghardaia area, petroleum geology, hydrocarbon accumulation, exploration orientation

CLC Number:

TE112.3

Zhang Zhongmin, Zhang Faqiang, Cao Zhe, Lv Xueyan, Zhou Yu, Cheng Ming, Yan Jianzhao, Zhu Zengshuo, Su Yuping. Hydrocarbon accumulation pattern and exploration potential in Ghardaia area,Oued Mya Basin[J]. China Petroleum Exploration, 2024, 29(6): 30-42.

References

[1] Beydoun Z R, Clarke M W H, Stoneley R. Petroleum in the Zagros Basin: a late tertiary foreland basin overprinted onto the outer edge of a vast hydrocarbon-rich Paleozoic-Mesozoic passive-margin shelf[C]// Macqueen R W, Leckie D A. Foreland Basins and Fold Belts. Tulsa: AAPG, 1992(55):309-340.
[2] 童晓光，关增淼. 世界石油勘探开发图集：非洲地区分册[M]. 北京：石油工业出版社，2002.
Tong Xiao guang, Guan Zeng miao. World petroleum exploration and development atlas:Africa regional volume[M].Beijing: Petroleum Industry Press, 2002.
[3] 陈霞，何雨丹，于慧玲. 阿尔及利亚三叠盆地Hadjira 区块油气勘探潜力[J]. 天然气工业，2008,28(8):22-24,135.
Chen Xia, He Yudan, Yu Huiling. Exploration potential of Hadjira block in the Triassic Algeria[J]. Natural Gas Industry, 2008,28(8):22-24,135.
[4] 陈霞，于慧玲，何雨丹，等. 阿尔及利亚三叠盆地GUERARA 地区石油地质条件分析[J]. 石油实验地质，2008,30(3):256-259.
Chen Xia, Yu Huiling, He ludan, et al . Analysis of petroleum geological conditions of the Guerara block in the Triassic Basin Algeria[J]. Petroleum Geology ＆ Experiment, 2008,30(3):256-259.
[5] 胡忠贵. 阿尔及利亚韦德迈阿次盆地FTEb 区块三叠系层序—岩相古地理[J]. 石油天然气学报，2011,33(2):11-16,163.
Hu Zhorggui. Triassic sequence-lithofacies paleogeography of FTEb block, Oued Mya sub-basin, Algeria [J].Journal of Oil and GasTechnolvgy, 2011,33(2):11-16,163.
[6] 翟爱军. 阿尔及利亚416a-417 区块勘探潜力与勘探方向浅析[J]. 石油天然气学报( 江汉石油学院学报), 2005,27( 增刊1):183-184.
Zhai Aijun. Analysis of exploration potential and exploration direction of 416a-417 block in Algeria[J]. Journal of Oil and GasTeehnolvgy (Journal of Jianghan Petroleum Institute), 2005,27(S1):183-184.
[7] 姜均伟，曾玉强，胡友良. 阿尔及利亚438 区块古生代构造演化及油气成藏特征[J]. 世界地质，2012,31(1):155-161.
Jiang Junwei, Zeng Yugiang，Hu Youliang. Paleozoic tectonic evolution and hydrocarbon accumulation characteristics in Algeria block 438[J]. Global Geology, 2012,31(1):155-161.
[8] 潘杨辉，郑荣才，胡诚，等. 阿尔及利亚韦德迈阿次盆地438B 区块泥盆纪层序—岩相古地理特征[J]. 地球科学与环境学报，2011, 33(3):268-274.
Pan Yanghui, Zheng Rongcai, Hu Cheng, et al . Characteristics of Sequence-lithofacies and Paleogeography of Devonian in Block 438B of Oued Mya Basin, Algeria[J]. Journal of Earth Sciences and Environment, 2011,33(3):268-274.
[9] 郑荣才，张天玲，潘杨辉，等. 阿尔及利亚Oued Mya 盆地438b 区块下泥盆统储层沉积学特征[J]. 成都理工大学学报( 自然科学版),2011,38(5):481-486.
Zheng Rongcai, Zhang Tianling, Pan Yanghui, et al . Characteristics of the Lower Devonian reservoir sedimentology In Block 438B, Oued Mya Basin, Algeria[J]. Journal of Chengdu University of Technology (Science & Technology Edition), 2011,38(5):481-486.
[10] 杨军，王永刚，季红军，等. 韦德迈阿盆地416a-417 区块石油勘探潜力[J]. 新疆石油地质，2007,28(4):516-520.
Yang Jun, Wang Yonggang, Ji Hongjun, et al . Petroleum explorative potentials in 416a-417 block of Oued Mya Basin，Algeria[J]. Xinjiang Petroleum Geology, 2007,28(4):516-520.
[11] 李争，杨丽，刘超. 阿尔及利亚A 区块非构造圈闭的识别及有利区预测[J]. 资源环境与工程，2010,24(1):32-35.
Li Zheng, Yang Li, Liu Chao. Non-structural trap identification and predication of favorable areas in A block, Algeria[J]. Resources Environment ＆ Engineering, 2010,24(1):32-35.
[12] 翁望飞，季红军，张涛，等. 阿尔及利亚A 区块三叠系油气成藏条件与富集控制因素[J]. 岩性油气藏，2010,22(1):76-81.
Weng Wangfei, Ji Hongjun, Zhang Tao, et al . Hydrocarbon accumulation conditions and enrichment controlling factors of Triassic in block A, Algeria[J]. Lithologic Reservoirs, 2010, 22(1):76-81.
[13] 胡忠贵，郑荣才，周刚，等. 阿尔及利亚韦德迈阿次盆地三叠系河流相沉积模式[J]. 成都理工大学学报( 自然科学版)，2009,36(3): 253-260.
Hu Zhonggui, Zheng Rongcai, Zhou Gang, et al . Sedimentary models and reservoir forecasting of the Triassic fluvial facies in the Oued Mya Basin of Algeria[J]. Journal of Chengdu University of Technology (Science & Technology Edition), 2009,36(3):253-260.
[14] 刘小兵，温志新，宋成鹏，等. 跨国油气勘探形势与启示[J]. 中国石油勘探，2022,27(6):1-12.
Liu Xaobing, Wen Zhixin, Song Cheng peng, et al . The situation and enlightenment of transnational oil and gas exploration[J]. China Petroleum Exploration, 2022,27(6):1-12.
[15] 李志，李富恒，侯平，等. 国际油公司勘探战略对标评价方法初探[J].中国石油勘探，2022,27(6):137-144.
Li Zhi, Li Fuheng, Hou Ping, et al . Preliminary study on exploration strategy benchmarking evaluation method of international oil companies[J]. China Petroleum Exploration,2022,27(6):137-144.
[16] 薛国勤，杨振峰，谈馨，等. 西北非克拉通边缘盆地群含油气系统特征[J]. 断块油气田，2009,16(3):24-26.
Xue Guoqin, Yang Zhenfeng, Tan Xin, et al . Petroliferous system feature in peri-crationic basin group in northwestern Africa[J]. Fault-block oil&gas field, 2009,16(3):24-26.
[17] Fu X, Feng Z, Zhang F, et al . Wilson cycles of the Zagros fold and thrust belt: a comprehensive review[J]. Journal of Asian Earth Sciences, 2024,262:105993.
[18] 李大荣，黎发文，唐红. 阿尔及利亚三叠盆地、韦德迈阿次盆地石油地质特征及油气勘探中应注意的问题[J]. 海相油气地质，2006,11(3):19-26.
Li Darong, Li Fawen, Tang Hong. Characteristics of petroleum geology of Triassic Basin and the Subordinate Oued Mya Basin in Algeria and suggests for oil and gas exploration[J], Marine Petroleum Geolgy,2006,11(3):19-26.
[19] Eddine G N. The future of exploration in Oued Mya Basin, Algeria[C]//60th EAGE Conference and Exhibition. European Association of Geoscientists & Engineers, 1998:cp-110-00435.
[20] Craig J, Rizzi C, Said F, et al . Structural styles and prospectivity in the Precambrian and Palaeozoic Hydrocarbon systems of North Africa. In: Salem, M.J., Oun, K.M., Essed, A.S., (Eds.), The Geology of East Libya 4. Earth Science Society of Libya, Tripoli, 2008, pp. 51-122.
[21] Faqira M, Rademakers M, Afifi A M. New insights into the hercynian orogeny, and their implications for the paleozoic hydrocarbon system in the Arabian plate[J]. GeoArabia, 2009,14(3):199-228.
[22] 朱昊，何登发，杜鹏. 北非古生界含油气盆地油气成藏组合特征[J].中国石油勘探，2014,19(6):74-81.
Zhu Hao, He Dengfa, Du Peng. Characteristics of hydrocarbon reservoir-cap assemblages in paleozoic hydrocarbon basins in North Africa[J]. China Petroleum Exploration, 2014,19(6):74-81.
[23] IHS Markit. IHS 数据库[EB/OL].[2023-11-01]. https://www.spglobal.com/(2019).
IHS Markit. IHSdatabase[EB/OL].[2023-11-01]. https://www.spglobal.com/(2019).
[24] Lüning S, Archer R, Craig J, et al . The lower Silurian‘hot shales’and‘double hot shales’in North Africa and Arabia[C]//Symposium on the sedimentary basins of Libya. Tripoli: the Geology of Northwest Libya, 2003:91-106.
[25] Yahi N, Khatir B. Source rock identification and basin modelling Mouydir / Oued Mya basin, central Algeria[C]//57th EAGE Conference and Exhibition. European Association of Geoscientists & Engineers, 1995:cp-90-00508.
[26] 王瀚洲，白国平. 中东—北非志留系含油气系统及其页岩油资源潜力分析[D]. 北京：中国石油大学( 北京)，2020.
Wang Hanzhou, Bai Guoping. Middle East-North Africa Silurian petroleum system and its shale oil resource potential analysis[D]. Beijing:China University of Petroleum (Beijing), 2020.
[27] Boutoutaou D. Understanding the regional migration routes and field charging history of the Oued Mya-Hassi Messaoud petroleum system, Algeria[D]. Newcastle upon Tyne Newcastle University, 2003.
[28] 李顺明. 阿尔及利亚Zarzaitine 油田下泥盆统F4 层沉积相及相建模[D]. 北京：中国地质大学（北京），2007.
Li S M. Sedimentary facies and facies modeling of Lower Devonian F4 in Zarzaitine Oilfield, Algeria[D]. Beijing :China University of Geosciences (Beijing), 2007.
[29] Boote D R, Clark-Lowes D D, Traut M W. Palaeozoic petroleum systems of North Africa[J]. Geological Society, London, Special Publications, 1998, 132(1):7-68.
[30] Magloire P R. Triassic gas field of Hassi Err’mel, Algeria[J]. AAPG Memoir, 1970,14:489-501.
[31] Baouche R, Ganguli S S, Sen S, et al . Assessment of reservoir stress state and its implications for Paleozoic tight oil reservoir development in the Oued Mya Basin, northeastern Algerian Sahara[J]. Geosystems and Geoenvironment, 2023,2(1):100-112.
[32] Soua M. Paleozoic oil/gas shale reservoirs in southern Tunisia: an overview[J]. Journal of African Earth Sciences, 2014,100:450-492.
[33] Wang Z, Shi B, Wen Z, et al . Shale oil and gas exploration potential in the Tanezzuft Formation, Ghadames Basin, North Africa[J]. Journal of African Earth Sciences, 2019,153:83-90.