塔西南高精度航磁油气地质构造调查

doi:10.11720/wtyht.2021.1455

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Abstract

Influenced by the difficulty of exploration and poor seismic quality, the exploration of oil-gas resources in the southwest of Tarim Basin has not achieved a substantial breakthrough after decades of work. Based on the latest high-precision aeromagnetic data obtained in Southwest Tarim Basin in recent years, this paper discusses the geological problems related to oil-gas accumulation, such as basement structure of basin, distribution and characteristics of depressions, main fault structures and their controlling rules for oil-gas migration and accumulation, local anomalies and favorable local structures of oil-gas as well as their distribution characteristics. The results of the study can provide important reference for the further strategic selection of oil-gas exploration and deep resource evaluation in Southwest Tarim Basin.

Key words： high-precision aeromagnetic survey favorable structure for oil-gas geological structure basement uplift and depression Southwest Tarim Basin

Received: 17 September 2020 Published: 20 August 2021

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	Zhi-Qiang CUI
	Zhi-Li XU
	Fei LI

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Zhi-Qiang CUI,Zhi-Li XU,Fei LI. The application of high-precision aeromagnetic survey to the investigation of oil-gas geological structure in Southwest Tarim Basin[J]. Geophysical and Geochemical Exploration, 2021, 45(4): 846-858.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2021.1455 OR https://www.wutanyuhuatan.com/EN/Y2021/V45/I4/846

Distribution of strata and main oil-bearing structures in Southwest Tarim Basin
1—stratigraphic distribution range of each age;2—known oil and gas bearing structures and oil and gas;3—study area range;4—uplift/depression of basin basement;E—Paleogene;K—Cretaceous;J—Jurassic;P₂—middle Permian;P₁—lower Permian;C—Carboniferous;D—Devonian;S—Silurian;O—Ordovician;Z—Sinian

High precision aeromagnetic map of Southwest Tarim Basin

Correlation between reservoir cap assemblage and formation susceptibility

Distribution of basement uplifts-depressions and main faults in Southwest Tarim Basin

Interpretation map of deep geological structure of Wutangsu local structural belt
1—Quaternary;2—upper Pliocene;3/4/5—middle Pliocene;6—Paleogene;7—Cretaceous-Jurassic;8—upper Paleozoic;9—Carboniferous;10—lower Paleozoic;11—Proterozoic;12—Permian volcanic rocks;13—inferred fault;14—inferred tectonic boundary

Geological profile of Karamay structure inversion
1—Quaternary; 2—Atushi formation

Superimposed anomalies of local structures along different axes in the central foreland depression
1—inferred fault, 2—local structural anomaly

Local structure and distribution law
1—local structure and its name;2—local structure area;3—local structure belt

序号	构造分区	构造带号	局部构造带	局部构造名称
Ⅰ	岳普湖— 色力布亚构造区	第1带	阿克喀什—塔克尔库构造带	喀什背斜(测区外)、阿克喀什、麻扎库、比盖买力
		第2带	伽师—第三农场构造带	西伽师、东伽师、艾曼里克、龙口、伯西塔木、第三农场
		第3带	岳普湖—色力布亚局部构造带	岳普湖、岳普湖北、西曲库恰克、北曲库恰克、曲库恰克
		第4带	牙恰克局部构造带	英也尔、郎喀、牙恰克、卡拉东、南色力布亚、卡拉东
Ⅱ	色力布亚— 麦盖提东构造区	第1带	玉代力克—康塔库木构造带	北巴、北恰苏、恰苏、麦东Ⅳ号
		第2带	色力布亚—麦盖提东构造带	北曲库恰克、琼库尔恰克、南色力布亚、卡拉东、麦东Ⅱ号、麦东Ⅲ号
		第3带	麦盖提—海西构造带	麦盖提、麦东Ⅰ号、海西Ⅰ号、海西Ⅱ号、海西Ⅲ号
Ⅲ	齐姆根— 英吉沙区	第1带	齐姆根构造带	齐姆根、硫酸厂北、黑孜南
		第2带	黑孜尔构造带	托普鲁克、黑孜尔
		第3带	英吉沙构造带	英吉沙、哈拉萨依
Ⅳ	莎车—叶城西构造区	第1带	霍什拉甫构造带	喀拉克依、和什拉甫、尼西西、塔尔阿格、拜勒都东
		第2带	棋北构造带	考库亚、喀群、喀群东、尼西北
		第3带	泽普构造带	亚克亚日北、泽普、依克苏、巴仁公社、巴仁公社东
		第4带	一杆旗构造带	一杆旗、克拉克依
		第5带	北莎车构造带	西阿力买提、阿力买提、北莎车、东莎车
Ⅴ	叶城—皮山南构造区	第1带	莆沙构造带	西莆沙、东莆沙、曲吕西、比纳木、喀热苏
		第2带	乌塘苏群构造带	西乌塘苏、东乌塘苏、玉力群
		第3带	西河莆—克里阳构造带	西河莆、西河莆东、孜门勒克、北玉立群、克里阳、喀热苏北
		第4带	固满构造带	尼西东、指挥部、拜什特、东固满、合什塔克、苏勒阿孜
		第5带	皮山南构造带	北保然、斯拉克、乔达、藏桂、藏桂北
		第6带	皮山北构造带	卡日东、皮东Ⅰ号、皮东Ⅱ号、皮东Ⅲ号、皮东Ⅳ号
Ⅵ	和田南构造区	第1带	桑株—杜瓦局部构造带	桑株、杜瓦、杜瓦东、普喀
Ⅵ	和田南构造区	第2带	皮牙曼—和田构造带	皮牙曼西、皮牙曼、皮牙曼北、和田、阿其克、策南Ⅰ号、策南Ⅱ号
Ⅶ	和田北构造区	第1带	墨玉—策勒构造带	墨玉、洛浦北、策勒北
Ⅶ	和田北构造区	第2带	墨北—玉龙喀什构造带	墨北Ⅰ号、墨北Ⅱ号、墨北Ⅲ号、玉龙Ⅰ号、玉龙Ⅱ号
Ⅷ	玛南构造区	第1带	玛南构造带	玛南Ⅰ号、玛南Ⅱ号
Ⅷ	玛南构造区	第2带	和田北—玉龙东构造带	和北Ⅰ号、和北Ⅱ号、和北Ⅲ号、和北Ⅳ号、和北Ⅴ号、阿提巴什、玉东Ⅰ号、玉东Ⅱ号、玉东Ⅲ号

Statistical chart of local structure zoning

Local structural deformation law and abnormal characteristics in the south of Southwest Tarim Basin
1—aeromagnetic ΔT;2—aeromagnetic ΔT local anomaly;3—aeromagnetic ΔT first derivative;4—local gravity anomaly;5—inferred fault;6—boundary of tectonic layer;7—tectonic layer of different ages;Q—quaternary;N₂—upper Pliocene;N₁—middle Pliocene;Mz—Mesozoic;Pz—Paleozoic;Pt—Presinian

Aeromagnetic characteristics of Kekeya(a) and Bashitopu(b) oil and gas fields
1—local structure, 2—inferred fault

Prediction of favorable structural areas for oil and gas
1—local structure and its name; 2—local structure area; 3—favorable structure area for oil and gas accumulation

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