| 塔里木、四川和鄂尔多斯盆地海相碳酸盐岩规模储层发育地质背景初探 |
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| 引用本文： | 赵文智,沈安江,胡安平,周进高,倪新锋.塔里木、四川和鄂尔多斯盆地海相碳酸盐岩规模储层发育地质背景初探[J].岩石学报,2015,31(11):3495-3508. |
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| 作者姓名： | 赵文智 沈安江 胡安平 周进高 倪新锋 |
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| 作者单位： | 中国石油勘探开发研究院, 北京 100083,中国石油杭州地质研究院, 杭州 310023;中国石油集团碳酸盐岩储层重点实验室, 杭州 310023,中国石油杭州地质研究院, 杭州 310023;中国石油集团碳酸盐岩储层重点实验室, 杭州 310023,中国石油杭州地质研究院, 杭州 310023;中国石油集团碳酸盐岩储层重点实验室, 杭州 310023,中国石油杭州地质研究院, 杭州 310023;中国石油集团碳酸盐岩储层重点实验室, 杭州 310023 |
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| 基金项目： | 本文受国家科技重大专项(2011ZX05004-002)和中国石油天然气股份有限公司重大科技专项(2014E-32)联合资助. |
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| 摘 要： | 前人对碳酸盐岩储层的研究重点关注储层的特征和成因上,很少关注规模储层发育的地质背景问题,而这又是深层油气勘探不可回避的问题。本文基于塔里木、四川和鄂尔多斯盆地碳酸盐岩储层实例分析,提出了不同类型储层规模发育的地质背景,认为相控型碳酸盐岩规模储层主要发育于蒸发台地、碳酸盐缓坡及台地边缘三类沉积背景,成岩型碳酸盐岩规模储层发育的控制因素复杂,具有较大的不确定性,受先存储层规模及热液规模的控制,受区域构造运动控制的成岩型储层一般具备规模发育的条件。本文还特别讨论了镶边台缘背景下台内礁滩储层的规模问题,指出障壁类型、障壁的连续性、台地类型、台内水深和地貌共同控制台内礁滩储层的规模。规模储层发育地质背认识对深层碳酸盐岩勘探领域评价具重要的指导意义,指出了塔里木、四川和鄂尔多斯盆地近期值得关注的礁滩、岩溶和白云岩三类深层碳酸盐岩储层勘探领域。
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| 关 键 词： | 碳酸盐岩规模储层 蒸发台地 碳酸盐缓坡 台地边缘 区域构造运动 |
| 收稿时间： | 2015/4/16 0:00:00 |
| 修稿时间： | 2015/9/14 0:00:00 |
A Discussion on the geological background of marine carbonate reservoirs development in Tarim, Sichuan and Ordos Basin, China. |
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| ZHAO WenZhi,SHEN AnJiang,HU AnPing,ZHOU JinGao and NI XinFeng.A Discussion on the geological background of marine carbonate reservoirs development in Tarim, Sichuan and Ordos Basin, China.[J].Acta Petrologica Sinica,2015,31(11):3495-3508. |
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| Authors: | ZHAO WenZhi SHEN AnJiang HU AnPing ZHOU JinGao and NI XinFeng |
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| Institution: | Petrochina Research Institute of Petroleum Exploration and Development, Beijing 100083, China,Petrochina Hangzhou Research Institute of Geology, Hangzhou 310023;Key Laboratory of Carbonate Reservoirs, CNPC, Hangzhou 310023, China,Petrochina Hangzhou Research Institute of Geology, Hangzhou 310023;Key Laboratory of Carbonate Reservoirs, CNPC, Hangzhou 310023, China,Petrochina Hangzhou Research Institute of Geology, Hangzhou 310023;Key Laboratory of Carbonate Reservoirs, CNPC, Hangzhou 310023, China and Petrochina Hangzhou Research Institute of Geology, Hangzhou 310023;Key Laboratory of Carbonate Reservoirs, CNPC, Hangzhou 310023, China |
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| Abstract: | Previous studies on carbonate reservoirs were mostly focused on characteristics and origin, geologic background for large-scale carbonate reservoir (LSCR) development was often overlooked, which, however, is an inevitable issue in deep oil & gas exploration. This contribution based on case studies, figures out the geologic background for development of various LSCRs in Tarim, Sichuan, and Ordos basins. Facies-controlled LSCRs were commonly developed in evaporated platforms, ramps, and platform margins. Diagenetic-controlled LSCRs exhibited large uncertainties because of complex controlling factors, and were generally constrained by the scale of pre-existed reservoirs and the amount of hydrothermal fluids. Moreover, the scale of reef & shoal reservoirs in interior platforms with rimmed margins was discussed in this study. It was found that the scale of reef & shoal reservoirs in interior platforms with rimmed margins was integratedly controlled by types & continuities of barriers, types of platforms, and water depth & geomorphology. These findings on geologic background for LSCR development could be applied in evaluations of deep burial carbonate reservoirs. Accordingly, favorable exploration areas of three categories (i.e. reef & shoal, karst, and dolomite) of deep carbonate reservoirs in Tarim, Sichuan, and Ordos basins are put forward. |
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| Keywords: | Carbonate extensive reservoirs Evaporative platform Carbonate ramp Rimmed margin of carbonate platform Regional tectonic movement |
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