现场/项目开发

技术框架评估现有资产中的海上地热机会

本文概述了一个地热评估项目,该项目旨在评估英国大陆架高压/高温区域及其周围的地热能源资源。

图1—简化的地热资源剖面图。
图1—简化的地热资源剖面图。
资料来源:SPE 215504。

完整的论文概述了地热评估项目 (GAP),该项目旨在评估英国大陆架高压/高温 (HP/HT) 油田及其周围的地热能源资源。作者展示了一种新的方法来识别和确定可从地热资源和相关现场基础设施中实现的电量,并调查现有和未来的机会。

方法

目前,不存在用于对海上地热储量和资源进行分类的单一系统,因此开发了所描述的方法,以便以与石油或天然气勘探类似的方式对这些机会进行测量和基准测试,考虑到海上环境,这被认为是相关的模拟。

地热探明储量。地热探明储量是与当前生产的井库相关的储量。储量值可以通过评估与给定油田当前产量相关的热能来计算。这些储量是因为它们目前已开采到地表,相当于“探明已开发生产”。

地热应急资源。地热或有资源被定义为存在于现有井库内的非生产性资源,可以通过油井再完井的资本投资或现有井眼内额外层段的射孔来投入生产。

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
Field/project development

Technical Framework Assesses Offshore Geothermal Opportunities in Existing Assets

This paper provides an overview of a geothermal assessment project completed to assess geothermal energy resources in and around an operational high-pressure/high-temperature field on the UK Continental Shelf.

Fig. 1—Simplified geothermal resource cross section.
Fig. 1—Simplified geothermal resource cross section.
Source: SPE 215504.

The complete paper provides an overview of a geothermal assessment project (GAP) completed to assess the geothermal energy resource in and around an operational high-pressure/high-temperature (HP/HT) field on the UK Continental Shelf. The authors demonstrate a new methodology to identify and determine the amount of electrical power that might be realized from the geothermal resource and associated field infrastructure and investigate both existing and future opportunities.

Methodology

At present, no single system exists for classifying offshore geothermal reserves and resources, so the described methodology was developed to allow measuring and benchmarking of these opportunities in a similar manner to an oil or gas prospect, which was deemed a relevant analog given the offshore context.

Geothermal Proven Reserve. The Geothermal Proven Reserve is that which is associated with the currently producing well stock. The reserve value can be calculated by assessing the thermal energy associated with the current production from a given field. These are reserves because they are currently produced to the surface and are equivalent to “Proved Developed Producing.”

Geothermal Contingent Resource. The Geothermal Contingent Resource is defined as the nonproducing resource that occurs within the existing well stock and which could be brought into production by way of capital investment in well recompletion or the perforation of additional intervals within an existing wellbore.

×
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.