吐哈油田低饱和度油藏地质工程一体化效益勘探实践

发布时间：2018-04-25 03:04

本文选题：吐哈盆地 + 红台地区　；参考：《中国石油勘探》2017年01期

【摘要】：吐哈油田近年来在吐哈盆地台北凹陷中—下侏罗统水西沟群低饱和度油藏勘探上取得重要突破,红台地区发现了规模整装储量并快速建产,区域扩展取得多个领域的突破与进展,开辟出一个勘探前景良好的增储建产新领域,实现了复杂类型油气藏的效益勘探。这一勘探重要发现得益于勘探思路的转变和技术进步。吐哈油田借鉴致密油勘探思路,积极推广应用水平井+体积压裂工艺改造技术,地质工程一体化攻关台北凹陷低渗低饱和度油藏,深化成藏机理研究,准确预测储层甜点;科学设计水平井轨迹及方位,强化长水平段工程地质导向及轨迹跟踪,有效提高水平井储层钻遇率;根据油藏特性,优化体积压裂规模和工艺参数,全过程开展地质工程一体化攻关,有力助推勘探获得重要突破;强化成熟技术集成配套,持续推进钻井提速;优化井身结构和完井方式,优化管串设计和固井工艺技术;多措并举,强化工程降本增效,进一步提高低饱和度油藏勘探开发效益。当前应对低品位储量要牢固树立效益勘探的理念,找准主要控制因素是地质工程一体化破解勘探瓶颈的关键,坚持地质工程一体化是实现低品位储量效益动用的保障。
[Abstract]:In recent years, the Turpan-Hami Oilfield has made an important breakthrough in the exploration of low saturation reservoirs of the Middle and Lower Jurassic Shuixigou Group in the Taibei Sag of the Turpan-Hami Basin. Regional expansion has made breakthroughs and advances in many fields, opened up a new field with good exploration prospects, and realized the benefit exploration of complex types of oil and gas reservoirs. This important discovery benefits from changes in exploration ideas and advances in technology. Turpan-Hami Oilfield uses tight oil exploration ideas for reference and actively popularizes the application of horizontal well volume fracturing technology to research low permeability and low saturation reservoirs in Taibei depression integrated with geological engineering to deepen the study of reservoir formation mechanism and accurately predict reservoir desserts. Scientific design of horizontal well trajectory and azimuth, strengthening engineering geological guidance and trajectory tracking in long horizontal section, effectively increasing drilling rate of horizontal well, optimizing volume fracturing scale and technological parameters according to reservoir characteristics, In the whole process, geological engineering should be integrated to tackle the key problems, which can help the exploration to get an important breakthrough; to strengthen the mature technology integration, to continuously promote drilling and raising speed; to optimize the wellbore structure and completion mode; to optimize the pipe string design and cementing technology; Multiple measures should be taken simultaneously to enhance the efficiency of project cost reduction and further increase the efficiency of exploration and development in low saturation reservoirs. At present, the concept of benefit exploration should be firmly established in order to solve the problem of low grade reserves. Finding the main controlling factors correctly is the key to break the bottleneck of geological engineering integration, and to insist on geological engineering integration is the guarantee to realize the benefit utilization of low grade reserves.
【作者单位】：中国石油吐哈油田公司勘探公司;
【基金】：中国石油“新疆大庆”重大科技专项“新疆和吐哈油田油气持续上产勘探开发关键技术”(2012E-34-10)
【分类号】：TE151;P618.13

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