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首页> 外文会议>Society of Petroleum Engineers annual technical conference and exhibition >Maximizing Reservoir Potential Using Enhanced Analytical Techniques with Underbalanced Drilling
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Maximizing Reservoir Potential Using Enhanced Analytical Techniques with Underbalanced Drilling

机译：利用增强的分析技术，利用欠平衡钻探的增强分析技术最大化储层潜力

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Improved oil and gas recovery begins at the point of first contact with the reservoir. If drilling of the wellbore used to access reserves is accomplished with minimal formation damage, then oil and gas recovery will be maximized at all stages of reservoir development: from primary exploitation through to tertiary recovery. Underbalanced drilling (UBD) is a technique that has shown excellent results in this area for vertical and horizontal wells. This paper describes the use of UBD technology to improve the overall hydrocarbon recovery. It focuses on how this technology can be used to maximize reservoir performance, illustrating these gains with the results of a field case where this technology has been applied. At its inception, UBD technology was focused primarily on drilling issues such as increasing the rate of penetration, avoiding drilling problems including differential sticking, lost circulation incidents, and facilitating drilling through difficult zones. More recently, however, UBD has seen increased application in cases where the primary objective is to avoid or minimize damage to the reservoir. This change of focus to the reservoir means that from the outset, recovery from the reservoir can be maximized with data and information gathered much earlier than in the typical field development life cycle. To take advantage of the availability of the "well testing type" data during underbalanced drilling, analytical and numerical models were developed. Results from these models, which permit analysis of each of the productive zones as they are traversed, are reviewed. Finally the current developments in further characterization of the reservoir being embarked upon are described. The results from the modeling in conjunction with a new system being developed for on-site analysis of produced fluids while drilling, allows characterization of the produced effluent which can be used to determine waterflood status, interconnectedness of a system, sweep efficiencies of the current water or gas floods, bypassed oil, and to aid in optimizing completion methods and multi-well infill drilling campaigns.
机译：改进的油和气体回收开始于与所述第一贮存器的接触点。如果用于访问储量井眼的钻孔以最小的地层损害完成，然后油气回收将在储层开发的各个阶段最大化：从​​初级开发通过对三次采油。欠平衡钻井（UBD）是在这方面的用于垂直井和水平井已经显示出极好的效果的技术。本文介绍了采用欠平衡钻井技术，提高整体油气采收率。它着重于这种技术如何可以用来最大限度地提高油藏动态，说明这些收益与在这项技术已应用于现场案件的结果。在成立初期，欠平衡钻井技术是主要集中在钻如提高普及率问题，避免包括压差卡钻，井漏事故钻井问题，并通过艰难区促进钻探。最近，然而，UBD已经看到了在增加的情况下应用，其中主要目的是避免或最小化到储存器的损坏。重点对贮存装置，从一开始，从水库的恢复可以用数据和信息最大化这一变化云集早得多比典型的油田开发生命周期。要采取欠平衡钻井过程中利用“井测试类型”数据的可用性，分析和数字模型的开发工作。从这些模型，它允许每个地在经过生产区的分析结果，进行了综述。最后，在储存器的进一步表征目前的发展时进行说明被进发。从造型结合的结果与一个新的系统被用于现场产生的流体的分析开发而钻孔，允许所产生的流出物的表征，其可以用来确定水驱状态，系统的相互关联性，目前的水的扫描效率或气驱，绕过油，并在优化完井方法和多井加密钻探活动的援助。

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