塔中卡塔克隆起南北坡上奥陶统礁滩地震识别与储层预测

佘晓宇; 董政; 龚晓星; 焦立波; 唐婷婷; 李昌鸿

doi:10.11781/sysydz201401016

塔中卡塔克隆起南北坡上奥陶统礁滩地震识别与储层预测

doi: 10.11781/sysydz201401016

佘晓宇^1,2,
董政^1,2,
龚晓星^1,2,
焦立波^1,2,
唐婷婷^1,2,
李昌鸿³

1.
长江大学油气资源与勘探技术教育部重点实验室, 武汉 430100
2. 长江大学地球物理与石油资源学院, 武汉 430100
3. 中国石油化工股份有限公司江汉油田分公司天然气勘探开发处, 湖北潜江 433124

基金项目: 中国石油化工股份有限公司科学技术研究项目（ZKD0208001）资助。

详细信息

作者简介:
佘晓宇（1963-），男，博士，高级工程师，从事石油地质和构造地质学研究。E-mail：shexiaoyu2000@163.com。

中图分类号: TE122.2⁺4
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出版历程
- 收稿日期: 2013-03-27
- 修回日期: 2013-12-09
- 刊出日期: 2014-01-28

Seismic identification and reservoir prediction of reef flat of Upper Ordovician in northern and southern slopes of Katake Uplift, middle Tarim Basin

1.
Key Laboratory of Exploration Technology for Oil Gas Resources, Ministry of Education, Yangtze University, Wuhan 430100, China
2. School of Geophysics and Oil Resources, Yangtze University, Wuhan 430100, China
3. Institute of Petroleum Exploration and Production, SINOPEC Jianghan Oil Field, Qianjiang, Hubei 433124, China

摘要

摘要: 卡塔克隆起上奥陶统良里塔格组沉积时期为大型碳酸盐岩孤立台地。通过地震地质解剖并结合钻、测井成果，其南、北坡的地震相—沉积相模式可划分为陆棚—盆地→台缘斜坡→台地边缘→开阔台地沉积体系。在台地边缘区可识别出生物礁、粒屑滩和礁间洼地亚相，礁滩体具有纵向多个叠置“塔式”结构、横向退积—加积迁移特点，表明海平面升降控制了礁滩体的阶段性生长。采用模式识别、古地貌识别、属性识别等多种方法可进一步圈定礁滩体分布范围。预测结果认为，北坡西部为台地缓坡边缘主要以生屑、砂屑滩、鲕粒滩相发育，中部台缘高陡斜坡生物礁相发育，而南坡于卡2区块西北部及卡1区块南部台缘礁丘和浅滩发育，具有形成串珠带状分布的生物礁滩型油气田（藏）条件。
- 礁滩体 /
- 台地边缘 /
- 地震—沉积相模式 /
- 储层预测 /
- 上奥陶统 /
- 卡塔克隆起 /
- 塔里木盆地
Abstract: When the Lianglitage Formation of the Upper Ordovician deposited, the Katake Uplift in the Tarim Basin was a large-scale isolated platform of carbonate rocks. According to seismic geology as well as drilling and logging data, the seismic and sedimentary facies of the southern and northern slopes were classified as shelf-basin, marginal slope, platform margin, and open platform depositional systems. In the platform margin, the subfacies of reef, bioclastic bank and reef depression were identified. The reef-bank complex was featured by a stacked "tower" structure vertically, and retrograding-aggradational migration horizontally, showing that sea level changes controlled the phased growth of reef flats. Using pattern, palaeogeomorphology and attribute recognition methods, the distribution range of reef-bank complex was further delineated. Prediction results showed that the platform slope edge mainly developed bioclast, calcarenite beach and oolitic beach facies in the west of the northern slope, and the high and steep slope developed reef on the central platform margin; while on the southern slope, platform margin reefs and shoals developed in the northwestern Ka2 block and the southern Ka1 block, showing favorable conditions for the formation of beads-like reef-type oil and gas reservoirs.
- reef-bank complex /
- platform margin /
- seismic-sedimentary facies model /
- reservoir prediction /
- Upper Ordovician /
- Katake Uplift /
- Tarim Basin

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