The impaCt of hydrOcarbon depletioN on the Treatment of cAprocks within performance assessment for CO2 InjectioN schemes - CONTAIN

碳氢化合物枯竭对二氧化碳注入方案性能评估中的炉顶处理的影响 - 包含

基本信息

批准号：
EP/K036025/1
负责人：
Jon Harrington
金额：
$ 117.92万
依托单位：
British Geological Survey
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2013
资助国家：
英国
起止时间：
2013 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FK036025%2F1
关键词：
impaCt hydrOcarbon depletioN Treatment cAprocks

项目摘要

The UK is committed to meeting stringent carbon dioxide emission targets over the next 35 years. One potentially valuable technology in achieving this target is the development of Carbon Capture and Storage (CCS) technologies, where carbon dioxide is captured during power generation and, instead of being released into the atmosphere, is injected into porous rocks underground. Porous rocks, such as sandstone, can act as a 'reservoir' for CO2, which can potentially be stored at depth over long periods of time and kept isolated from the rocks above by a much less porous 'caprock'. The UK has a large 'porosity resource', currently estimated to be of sufficient capacity to store the necessary 2-5 billion tonnes of CO2 to meet 2050 CO2 emission targets. It has been estimated that up to 9 billion tonnes of UK storage capacity come from reservoirs that previously contained hydrocarbons, which have been extracted by the oil and gas industry. This form of CO2 storage has a number of benefits, as the rocks are generally well characterised and there may be pre-existing infrastructure (such as pipelines) suitable for adaption to CO2 injection.However, the process of hydrocarbon extraction, or 'depletion', can significantly impact both the reservoir involved and the surrounding rocks. These activities can potentially cause deformation, movement on faults and/or damage to infrastructure. However, the long term impacts of these activities, particularly when the reservoir is 're-inflated' during injection of CO2, are not well understood and there is limited physical data for specific rock types and scenarios. In order for depleted reservoirs to become a viable national resource, these uncertainties must be addressed. As such, this project is focussed on providing a better understanding of the impact of depletion and reinflation on reservoir and caprock material. It will involve a combined approach, using both laboratory experiments and computer simulation to improve our understanding of this aspect of storage site behaviour. The project seeks to address this key area with a focussed programme of work that will generate a much-needed and unique data-set, new modelling tools and a fuller understanding of the processes involved. The findings will inform regulators and aid operators in reducing the financial and environmental risks of CCS, for depleted storage sites, making the technology more likely to happen.In addition, work will be carried out to examine effective communication with the public, relating to this new technology. Social acceptability represents a major potential barrier to CCS developments, as indicated by protests and moratoria in several countries. It is therefore critical to understand public attitudes and the bases of concern about CCS, and work as effectively as possible to improve understanding and engagement. Work within this project will explore the factors that determine public and stakeholder understanding and acceptability of CCS storage proposals. The lessons and knowledge derived from this work will be summarised in an outreach and engagement toolkit, which will be disseminated to regulators, operators and communication specialists.

英国致力于在未来 35 年实现严格的二氧化碳排放目标。实现这一目标的一项潜在有价值的技术是开发碳捕获和封存（CCS）技术，在发电过程中捕获二氧化碳，而不是释放到大气中，而是注入地下多孔岩石中。砂岩等多孔岩石可以充当二氧化碳的“储层”，二氧化碳可以长期储存在深处，并通过孔隙少得多的“盖层”与上面的岩石隔离。英国拥有大量“孔隙资源”，目前估计有足够的能力储存必要的 2-50 亿吨二氧化碳，以满足 2050 年二氧化碳排放目标。据估计，英国多达 90 亿吨的储存能力来自以前含有碳氢化合物的储层，这些碳氢化合物是由石油和天然气工业提取的。这种形式的二氧化碳储存有很多好处，因为岩石通常具有良好的特征，并且可能存在适合注入二氧化碳的现有基础设施（例如管道）。然而，碳氢化合物提取或“枯竭”的过程，会对涉及的储层和周围岩石产生显着影响。这些活动可能会导致变形、断层移动和/或基础设施损坏。然而，这些活动的长期影响，特别是当储层在注入二氧化碳期间“重新膨胀”时，尚不清楚，并且特定岩石类型和情况的物理数据有限。为了使枯竭的水库成为可行的国家资源，必须解决这些不确定性。因此，该项目的重点是更好地了解枯竭和再膨胀对储层和盖层材料的影响。它将涉及一种综合方法，利用实验室实验和计算机模拟来提高我们对存储地点行为这方面的理解。该项目旨在通过一个有针对性的工作计划来解决这一关键领域，该工作计划将生成急需且独特的数据集、新的建模工具以及对所涉及流程的更全面的理解。研究结果将告知监管机构并帮助运营商降低CCS的财务和环境风险，对于枯竭的储存地点，使该技术更有可能实现。此外，还将开展工作以检查与公众的有效沟通，与此相关新技术。正如一些国家的抗议和暂停所表明的那样，社会可接受性是 CCS 发展的主要潜在障碍。因此，了解公众对 CCS 的态度和担忧的基础，并尽可能有效地提高理解和参与度至关重要。该项目的工作将探讨决定公众和利益相关者对 CCS 封存方案的理解和接受程度的因素。从这项工作中获得的经验教训和知识将总结在一个外展和参与工具包中，并将其分发给监管机构、运营商和通信专家。

项目成果

期刊论文数量（9）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

A finite element geomechanical study of the brittle failure of a caprock due to deflation

通缩导致盖层脆性破坏的有限元地质力学研究

DOI：
发表时间：
2015
期刊：
49th US Rock Mechanics / Geomechanics Symposium 2015
影响因子：
0
作者：
Defoort T.
通讯作者：
Defoort T.

Caprock integrity and public perception studies of carbon storage in depleted hydrocarbon reservoirs

DOI：
10.1016/j.ijggc.2020.103057
发表时间：
2020-07
期刊：
International Journal of Greenhouse Gas Control
影响因子：
3.9
作者：
A. Paluszny;C. C. Graham-C.;K. Daniels;Vasiliki Tsaparli;Dimitrios Xenias;S. Salimzadeh;L. Whitmarsh
通讯作者：
A. Paluszny;C. C. Graham-C.;K. Daniels;Vasiliki Tsaparli;Dimitrios Xenias;S. Salimzadeh;L. Whitmarsh

Comparison of fracture mechanics and damage mechanics approaches to simulate three-point bending and double-notch shear experiments on rock samples.

模拟岩石样品三点弯曲和双切口剪切实验的断裂力学和损伤力学方法的比较。