| 克拉通盆地差异性构造活动对碳酸盐岩储集体的控制——以鄂尔多斯盆地马家沟组盐下储层为例 |
| |
| 引用本文： | 左洺滔,胡忠贵,张春林,胡明毅,杨威,莫午零.克拉通盆地差异性构造活动对碳酸盐岩储集体的控制——以鄂尔多斯盆地马家沟组盐下储层为例[J].中国地质,2021,48(3):794-806. |
| |
| 作者姓名： | 左洺滔 胡忠贵 张春林 胡明毅 杨威 莫午零 |
| |
| 作者单位： | 长江大学沉积盆地研究中心, 湖北 武汉 430100;中国石油勘探开发研究院, 北京 100083 |
| |
| 基金项目： | 国家科技重大专项（2016ZX05007002）、湖北省教育厅重点项目（D20171302）、国家自然科学基金面上项目（41772103）、长江大学“地质资源与地质工程一流学科开放基金项目”联合资助。 |
| |
| 摘 要： | 中国海相碳酸盐岩往往具有发育时期较老、埋藏较深、后期成岩作用改造较强等特点,致使对其优质碳酸盐岩储层及其主控因素的研究仍存在较大的进步空间。鄂尔多斯盆地马家沟组沉积时期,盆地由拉张动力背景向南北向挤压动力背景转换,从而诱发了一系列的构造活动。为了探讨不同构造活动对马家沟期马五段盐下沉积的影响,文章在前人研究基础上,以碳酸盐岩沉积学为理论指导,对研究区内二维地震剖面进行剖析,总结差异性构造活动,分析马五段盐下沉积期地震相与沉积相的特征,阐述差异性构造活动对颗粒滩储集体的影响,得到以下几点认识:(1)研究区识别出4种地震相类型,对应不同沉积相类型,其中颗粒滩储层为研究区内优势储集体;(2)盆地内发育基底断裂(拗拉槽)、同沉积断裂及古隆起3类构造活动;(3)将不同类型的构造活动与颗粒滩储集体进行匹配分析,总结出差异性构造活动对此类碳酸盐岩储集体的发育及分布的控制作用模式,并将颗粒滩储集体分为断控储集体和隆控储集体两大类。
|
| 关 键 词： | 克拉通盆地 差异性构造活动 碳酸盐岩储集体 马五段 盐下颗粒滩储层 鄂尔多斯盆地 |
| 收稿时间： | 2020/5/21 0:00:00 |
| 修稿时间： | 2021/4/16 0:00:00 |
Control of differential tectonic activities on carbonate reservoirs in craton basin: A case study of the subsalt reservoir of Majiagou Formation in Ordos Basin |
| |
| ZUO Mingtao,HU Zhonggui,ZHANG Chunlin,HU Mingyi,YANG Wei,MO Wuling.Control of differential tectonic activities on carbonate reservoirs in craton basin: A case study of the subsalt reservoir of Majiagou Formation in Ordos Basin[J].Chinese Geology,2021,48(3):794-806. |
| |
| Authors: | ZUO Mingtao HU Zhonggui ZHANG Chunlin HU Mingyi YANG Wei MO Wuling |
| |
| Institution: | Sedimentary Basin Research Center, Yangtze University, Wuhan 430100, Hubei, China;Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, China |
| |
| Abstract: | Carbonate rocks in China tend to have the characteristics of the older development period, deeper burial, and stronger later diagenetic transformation, which leaves a large space for the study of high-quality carbonate reservoirs and their main controlling factors in China. During the sedimentary period of Majiagou Formation in the Ordos Basin, the basin witnessed changing from tension to longitudinal compression, which induced a series of tectonic activities. To explore the influence of different tectonic activities on the subsalt deposition of Mawu Member in Majiagou Age, based on the previous studies and under the guidance of carbonate sedimentology, two-dimensional seismic profiles in the study area were analyzed, and differential tectonic activities were summarized. Combined with the analysis of seismic facies and sedimentary facies in the sub-salt sedimentary period of the Mawu Member, the influence of differential tectonic activities on the grain beach reservoir were depicted. As a result, the following understandings are obtained:a. four types of seismic facies have been identified in the study area, corresponding to different types of sedimentary facies, of which the grain beach facies is a good reservoir in the study area; b. there are three types of tectonic activities in the basin, basement faults (sag troughs), synsedimentary faults and uplifts;and c. based on the matching analysis of different types of tectonic activities and grain beach reservoirs, the control of differential structural activities on the development and distribution of this kind of carbonate reservoir is finally obtained, and its action mode is summarized. Finally, granular beach reservoirs are divided into fault-controlled reservoirs and uplift-controlled reservoirs. |
| |
| Keywords: | craton basin differential tectonic activities carbonate reservoirs Mawu Member the grain beach of the subsalt reservoir Ordos Basin |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国地质》浏览原始摘要信息 |
| 点击此处可从《中国地质》下载免费的PDF全文 |
|
