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深水油气勘探关键评价技术 及其在东非海域的应用

作    者:左国平,范国章,孙 辉,曹全斌,许小勇,李伟强,庞 旭 ,陈志鹏1,2 ,王 芳3 ,王高成4 ,邹 辰4 ,马 瑶1,2
单    位:中国石油杭州地质研究院 3 中国石油长庆油田勘探开发研究院;4 中国石油浙江油田公司
基金项目:本文受中国石油集团科技重大专项“海洋油气勘探关键技术研究”子课题等资助
摘    要:
近年来,在东非莫桑比克海域深水区发现了多个巨型天然气藏,使得该区域成为了全球天然气勘探的热点 区。莫桑比克海域总体上勘探程度低,深水沉积体系的研究不够深入,制约了油气的精细勘探。基于岩心、测井及三 维地震资料,集成了深水沉积层序地层分析技术、深水沉积结构单元综合描述技术、深水沉积储层预测及流体识别技 术和深水沉积储层三维地质建模技术等深水油气勘探关键技术,建立了莫桑比克海域层序地层格架,形成了深水沉 积结构单元综合描述图版,有效预测了深水沉积储层展布及流体分布。研究成果为储量评估和井位论证提供了技术 支撑,助推莫桑比克万亿方巨型气田开发,取得了良好的应用效果。
关键词:深水沉积;层序地层;结构单元;储层预测;地质建模;三维地震

Key evaluation techniques for deep-water petroleum exploration and ap⁃ plication in the offshore of East Africa

Author's Name: ZUO Guoping, FAN Guozhang, SUN Hui, CAO Quanbin, XU Xiaoyong, LI Weiqiang, PANG Xu
Institution: 
Abstract:
In recent years, several giant gas reservoirs have been found in the deep-water area of offshore Mozambique in East Africa, making this area the focus of gas exploration in the world. However, the exploration degree in this area is low, and the research on deep-water sedimentary system is at a low level, which restricts the fine petroleum exploration in this area. Based on core, logging, and 3D seismic data, the sequence stratigraphic framework of Mozambique sea area is established by integrating the key technologies of deep-water oil and gas exploration, such as deep-water sedimentary sequence stratigraphic identification and division method, deep-water sedimentary structural unit comprehensive description technology, deep-water sedimentary reservoir prediction and fluid identification technology, and deep-water sedimentary reservoir 3D geological modeling technology. A comprehensive description chart of deep-water sedimentary structural elements was formed, which was used for effectively predicting the distribution of deep-water sedimentary reservoirs and fluid distribution. The research results provide technical support for reserve evaluation and well deployment, boost the development of trillions of cubic meters of giant gas fields in Mozambique, and achieve good application results.
Keywords: deep-water sediments; sequence stratigraphy; structural element; reservoir prediction; geological modeling; 3D seismic
投稿时间:2021-08-04  
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