EVALUATION OF OIL AND GAS EXPLORATION DOMAINS IN BACHU-MAIGAITI AREA OF TARIM BASIN
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摘要: 塔里木盆地巴楚-麦盖提地区寒武纪-中晚奥陶世碳酸盐岩台地经历了加里东期及海西早期的剥蚀,呈向北减薄的楔状体,不同层位的碳酸盐岩发生多期岩溶作用;石炭-二叠纪经历了多次海平面升降旋回,形成碳酸盐岩与碎屑岩间互的岩相序列;中生代持续隆升,广泛剥蚀;喜马拉雅期巴楚地区断裂强烈活动,麦盖提地区调整为南倾的斜坡,古近系-中新统地层超覆于前新生代巴楚古凸起上.针对巴楚-麦盖提地区多期改造、晚期强烈变形定格的构造特征,提出"构造活动的相对稳定区、油气长期运移指向区、有效封闭带"是油气构造带评价的关键因素,划分出3类风险程度不同的勘探构造带.重点分析了石炭-二叠系碳酸盐岩储层、中下奥陶统风化壳岩溶储层、上奥陶统台缘相带及寒武系盐下白云岩储层等4个勘探领域.Abstract: Due to erosions from Caledonian to early Hercynian,Cambr ian-Middle-Late Ordovician carbonate platform in Bachu-Maigaiti area in the Tarim Basin is thinning northward with the shape of wedge.Different layers of carbonate rock have experienced stages of multi-phase karst effect.From Carboniferous to Permian,a number of sea-level cycles result in alternating layers of carbonate rocks and clastic rocks.Continuing uplifts lead to extensive erosions in Mesozoic.Faults in Bachu region move strongly in Himalayan and Maigaiti region adjust to slope southwards.The strata of Eugene-Pliocene overlap the ancient Bachu uplift of pre-Cenozoic.Taking into consideration of structural characteristics of multi-stage transformation and late-stage strong deformation in Bachu-Maigaiti area,it is pointed out in this paper that,relatively stable region in tectonic movements,long-term targets of hydrocarbon migration and effective sealing belts are the key factors for evaluations of oil and gas tectonic belts.Three tectonic belts with different exploration risks are divided.Four exploration domains are analyzed,including Carboniferous-Permian carbonate reservoir,Middle and Lower Ordovician karst weathering crust reservoir,Upper Ordovician platform edge facies belts and dolomite reservoir under salt in Cambrian.
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Key words:
- tectonic evolution /
- structural belt /
- Bachu Uplift /
- Maigaiti Slope /
- Tarim Basin /
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[1] 周新源,杨海军,李勇等.塔里木盆地和田河气田的勘探与发现[J].海相油气地质,2006,11(3):55-62 [2] 何治亮,陈强路,钱一雄.塔里木盆地中央隆起区油气勘探方向[J].石油与天然气地质,2006,27(6):769-778 [3] 李丕龙.塔里木盆地中央隆起带油气突破领域与勘探方向[J].石油与天然气地质,2007,28(5):576-583,589 [4] 贾承造.中国塔里木盆地构造特征与油气[M].北京:石油工业出版社,1997.1-5,205-238 [5] 何文渊,李江海,钱祥麟等.塔里木盆地巴楚断隆中新生代的构造演化[J].北京大学学报(自然科学版),2000,36(4):539-546 [6] 杨明慧,金之钧,吕修祥等.塔里木盆地基底卷入扭压构造与巴楚隆起的形成[J].地质学报,2007,81(2):158-164 [7] 丁文龙,林畅松,漆立新等.塔里木盆地巴楚隆起构造格架及形成演化[J].地学前缘,2008,15(2):242-252 [8] 肖安成,杨树锋,李曰俊等.塔里木盆地巴楚隆起断裂系统主要形成时代的新认识[J].地质科学,2005,40(2):291-302 [9] 康玉柱.塔里木盆地古生代海相碳酸盐岩储集岩特征[J].石油实验地质,2007,29(3):217-223 [10] 谭秀成,昌燕,王振宇等.塔里木盆地巴楚组沉积格局与演化[J].西南石油大学学报,2007,29(4):39-43 [11] 周新源,王招明,杨海军等.塔中奥陶系大型凝析气田的勘探和发现[J].海相油气地质,2006,11(1):45-52 [12] 饶丹,马绪杰.塔河油田主体区奥陶系缝洞系统与油气分布[J].石油实验地质,2007,29(6):589-592 [13] 顾忆,邵志兵,陈强路等.塔河油田油气运移与聚集规律[J].石油实验地质,2007,29(3):224-230 [14] 赵文智,张光亚,何海清等.中国海相石油地质与叠合含油气盆地[M].北京:地质出版社,2002.38-41 [15] 徐国强,刘树根,李国蓉等.塔中、塔北古隆起形成演化及油气地质条件对比[J].石油与天然气地质,2005,26(1):114-119,129 [16] 李昌鸿.江汉平原加里东期古隆起对震旦系-下古生界成藏条件的控制作用[J].石油实验地质,2008,30(6):564-567,574 [17] 佟殿君,任建业,任亚平.准噶尔盆地车莫古隆起的演化及其对油气藏的控制[J].油气地质与采收率,2006,13(3):39-42 [18] 贾庆素,尹伟,陈发景等.准噶尔盆地中部车-莫古隆起控藏作用分析[J].石油与天然气地质,2007,28(2):257-265 [19] 谢方克,孙永健.塔北隆起异常压力与油气成藏分析[J].油气地质与采收率,2003,10(1):26-28 [20] 赵靖舟,王清华,时保宏等.塔里木古生界克拉通盆地海相油气富集规律与古隆起控油气论[J].石油与天然气地质,2007,28(6):703-712 [21] 刘福春,王德海.松辽盆地东南隆起区十屋断陷油气聚集规律[J].油气地质与采收率,2001,8(2):14-17
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