吐哈油田复杂油藏勘探地质工程一体化精细管理实践

doi:10.3969/j.issn.1672-7703.2019.02.007

摘要/Abstract

摘要： 吐哈油田油藏类型多样，为了解决复杂、低效油藏储量难动用问题，保证当前增储增效目标实现的同时兼顾持续稳健有效发展，近年依托技术进步和转变勘探思路，通过实施地质工程一体化精细管理，完成了复杂油气藏的低成本、效益勘探。持续推进降本增效工程，进一步提高复杂油藏勘探开发效益，通过甲方主导开展钻井提速攻关与示范井推广，优化井身结构、完井措施、录测井设计，大幅缩短施工周期，降低成本。通过持续开展地质工程一体化技术攻关，深化成藏机理研究，准确预测储层甜点，优化勘探部署方案；攻关水平井地质导向配套技术，有效提高水平井储层钻遇率；攻关特殊钻井液体系和浅层水平井钻井工艺，安全快速钻进技术日趋成熟，工程质量持续提高；积极推广应用水平井+体积压裂工艺改造技术，并不断优化储层体积压裂改造方式，最大限度提高储层动用率，使得复杂油藏单井提液增产技术获得较好效果。地质工程一体化精细管理的一系列技术举措的实施，在吐哈油田区域扩展方面取得多个领域的突破与进展，发现了规模整装储量并快速建产。

关键词: 吐哈, 复杂油藏, 水平井, 体积压裂, 地质工程一体化

Abstract: The Tuha oilfield has various types of reservoirs. To produce more reserves from complex reservoirs, precise management based on geology-engineering integration has been implemented with the support of advanced technologies, contributing to the low-cost exploration of complex reservoirs. A series of supporting techniques have been developed and improved. First, the ROP enhancement technique together with optimized casing program, and completion/logging design, help greatly reduce the drilling period and cost. Second, the technique based on geology-engineering integration is proposed to further investigate hydrocarbon accumulation mechanism and accurately predict reservoir sweet spots, so as to facilitate the optimization of exploration scheme. Third, the geosteering technique is developed to improve drill-in rate of horizontal wells. Fourth, special drilling fluid system and shallow horizontal well drilling techniques ensure safe and fast drilling operation with good quality. Fifth, the horizontal well + volume fracturing technology is promoted and improved for maximizing the recovery of reserves. These techniques have contributed several breakthroughs in the Tuha oilfield, with bulk reserves discovered.

Key words: Tuha oilfield, complex reservoir, horizontal well, volume fracturing, geology-engineering integration

中图分类号:

孙宏亮, 梁瑜, 王晶, 钱峰, 崔彦立, 罗珺, 王波, 杨莹. 吐哈油田复杂油藏勘探地质工程一体化精细管理实践[J]. 中国石油勘探, 2019, 24(2): 196-202.

Sun Hongliang, Liang Yu, Wang Jing, Qian Feng, Cui Yanli, Luo Jun, Wang Bo, Yang Ying. Precise management based on geology-engineering integration for exploration of complex oil reservoirs in Tuha oilfield[J]. China Petroleum Exploration, 2019, 24(2): 196-202.

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