酸化/刺激

光纤方法监测多级刺激的排水剖面

本文的作者描述了一个项目,其中将远场观测井生产过程中监测到的罗利频移分布式应变传感转化为估计的压力剖面。

该项目的工作数据,包括折射应变和首次生产应变。
图1——该项目的工作数据,包括折射应变和首次生产应变。
资料来源:SPE 212364

水平井和水力增产的结合是释放北美和其他地区大量非常规资源的关键,但关于如何通过数英里的支线获取资源的水库排水仍有待了解。精确测量水平多级增产的排水模式所需的压力计的密度目前在经济或技术上都不现实。在本案例研究中,作者描述了一种使用光纤监测水平多级刺激排水剖面的方法。

介绍

先进的地下诊断项目是由能源部资助的水力断裂试验场一期三期的一部分部署的。横向观察井距最近的两口增产和生产水平井约 225 英尺。

SPE_logo_CMYK_trans_sm.png
成为 SPE 会员继续阅读
SPE 会员:请在页面顶部登录才能访问此会员专享内容。如果您还不是会员,但发现 JPT 内容很有价值,我们鼓励您成为 SPE 会员社区的一部分,以获得完全访问权限。
原文链接/jpt
Acidizing/stimulation

Fiber-Optics Approach Monitors Drainage Profile of Multistage Stimulation

The authors of this paper describe a project in which Raleigh frequency-shift distributed strain sensing monitored during production in a far-field observation well was translated to an estimated pressure profile.

The working data for the project, including refrac strain and first production strain.
Fig. 1—The working data for the project, including refrac strain and first production strain.
Source: SPE 212364

The combination of horizontal wells and hydraulic stimulation has been key in unlocking vast unconventional resources across North America and elsewhere, but much remains to be understood regarding how the reservoir is drained across the miles of laterals accessing a resource. The density of pressure gauges required to accurately measure the drainage pattern from a horizontal multistage stimulation is currently not realistic economically or technologically. In this case study, the authors describe a method of monitoring the drainage profile of a horizontal multistage stimulation using optical fiber.

Introduction

An advanced subsurface diagnostic project was deployed as part of the Hydraulic Fracture Test Site I, Phase 3, funded by the Department of Energy. A lateral observation well was positioned approximately 225 ft away from the nearest two stimulated and producing horizontal wells.

×
SPE_logo_CMYK_trans_sm.png
Continue Reading with SPE Membership
SPE Members: Please sign in at the top of the page for access to this member-exclusive content. If you are not a member and you find JPT content valuable, we encourage you to become a part of the SPE member community to gain full access.