Eagle Ford Completion Optimization Using Horizontal Log Data
Eagle Ford Completion Optimization Using Horizontal Log Data
复制标题
使用水平测井数据进行 Eagle Ford 完井优化
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
E. Wigger
中科院分区：
文献类型：
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作者：
R. Slocombe;A. Acock;K. Fisher;A. Viswanathan;C. Chadwick;R. Reischman;E. Wigger
斯伦贝谢和在德克萨斯州南部钻探的四家 Eagle Ford 页岩油作业运营商加入了一项联盟计划，以获取多口水平井中各种类型的裸眼测井数据，并利用这些数据来设计具有最佳裂缝阶段和射孔簇定位的完井方案。随后使用水平生产测井来衡量使用测井数据来设计完井的有效性。本文概述了数据采集技术、数据分析、应用、结果和结论。先前对在包括 Eagle Ford 在内的几个页岩区获得的生产测井数据进行的研究（Miller 等人，2011）显示了射孔簇贡献的显着变化。其他记录的结果显示了在 Marcellus 中针对类似受力岩石进行裂缝处理的效果（Waters、Heinze、Jackson，2011）。本研究的目的是通过增加有助于生产的射孔簇数量来提高油井的初始流动能力。一个相关的目标是确定描述岩石特征所需的最佳水平测井程序，同时尽量减少对现有工作流程的干扰。本文将展示 Eagle Ford 页岩 12 口水平井采集的数据结果（见图 1 中的地图）。岩石物理和地质力学分析基于水平测井测量，并用作工程完井设计工具的输入，该工具生成针对每口井设计的建议。该设计工具将具有相似属性的间隔分组以进行刺激治疗。处理后，水平生产测井穿过这些区域以测量射孔簇的贡献。研究结果有可能改变非常规资源的开发方式。最近的趋势已经从数据采集转向盲目几何断裂。本文探讨了在横向剖面中获取岩石物理数据的价值及其在完井优化、资源浪费最小化以及对早期生产的影响方面的应用。图 1：研究井位置图
Schlumberger and four Eagle Ford Shale Play operators drilling in South Texas joined a consortium initiative to acquire various types of open hole logging data in several horizontal wells, and use the data to design the completions with optimum fracture stage and perforation cluster positioning. Horizontal production logs were subsequently used to gauge the effectiveness of using the log data to engineer the completions. This paper outlines the data acquisition techniques, analyses made on that data, application, results and conclusion. Previous work carried out on production logging data acquired in several shale plays including the Eagle Ford (Miller et al, 2011) shows a significant variation in perforation cluster contribution. Other documented results showing the effect of targeting similarly stressed rock for fracture treatments (Waters, Heinze, Jackson, 2011) in the Marcellus. The objective of this study was to improve the initial flow capacity of the well by increasing the number of perforation clusters contributing to production. A related objective was to determine the optimal horizontal logging program that was needed to characterize the rock with minimal interruption to existing work flows. This paper will show the results of data acquired over 12 horizontal wells in the Eagle Ford Shale (see map in figure 1). Petrophysical and geomechanical analyses were based on horizontal logging measurements and used as inputs to an engineered completion design tool that generated a recommendation on each well design. The design tool grouped intervals with similar properties for stimulation treatment. Following the treatment, horizontal production logs were run through the zones to measure the perforation cluster contribution. The results of the study have the potential to change the way Unconventional Resources are developed. Recent trends have seen a shift away from data acquisition to blind geometrical fracturing. This paper examines the value of acquiring petrophysical data in the lateral section and its application to completion optimization, the minimization of wasted resources, and the impact on early production. Figure 1: Map of the location of the study wells