Active Reservoir Pressure Management with Guidance and Surveillance by Distributed Fiber-optic Strain Sensing

2 Pages Posted: 13 Apr 2021

See all articles by Yi Zhang

Yi Zhang

Geological Carbon Dioxide Storage Technology Research Association; RITE: Research Institute of Innovative Technology for the Earth

Tsutomu Hashimoto

Geological Carbon Dioxide Storage Technology Research Association

Xinglin Lei

National Institute of Advanced Industrial Science and Technology (AIST) - Geological Survey of Japan (GSJ)

Ziqiu Xue

RITE: Research Institute of Innovative Technology for the Earth; Geological Carbon dioxide Storage Technology Research Association

Date Written: April 7, 2021

Abstract

CO2 injection and storage in aquifers can cause pore pressure build up and deformation of the aquifer-caprock system due to extra-fluid accumulation. Active reservoir pressure management, a concept that using brine production before or during CO2 injection to reduce reservoir pressure build up, has been suggested to avoid potential risks posed by geomechanical deformation during large-scale CO2 injection [1], [2]. Sedimentary formations usually develop heterogeneities in fluid properties and mechanical properties. When conducting CO2 injection or brine production, acquiring the in-situ information of pore pressure and fluid distribution and rock deformation would be much helpful for the project operating. In this presentation, we propose to give guidance and surveillance of the CO2 injection and brine production operations in real time using a distributed fiber optic strain sensing (DFOSS) system. We show the field and lab studies and numerical simulation results to demonstrate the feasibility and the advantages when using DFOSS for pressure management in a storage reservoir. Existing difficulties when using DFOSS are also presented.

Keywords: distributed strain sensing, optical fiber, active pressure management, CO2 storage, injectitity

Suggested Citation

Zhang, Yi and Hashimoto, Tsutomu and Lei, Xinglin and Xue, Ziqiu, Active Reservoir Pressure Management with Guidance and Surveillance by Distributed Fiber-optic Strain Sensing (April 7, 2021). Proceedings of the 15th Greenhouse Gas Control Technologies Conference 15-18 March 2021, Available at SSRN: https://ssrn.com/abstract=3821348 or http://dx.doi.org/10.2139/ssrn.3821348

Yi Zhang (Contact Author)

Geological Carbon Dioxide Storage Technology Research Association ( email )

9-2 Kizugawadai
Kizugawa-Shi
Kyoto, 619-0292
Japan

RITE: Research Institute of Innovative Technology for the Earth ( email )

Kyoto, 619-0292
Japan

Tsutomu Hashimoto

Geological Carbon Dioxide Storage Technology Research Association

9-2 Kizugawadai
Kizugawa-Shi
Kyoto, 619-0292
Japan

Xinglin Lei

National Institute of Advanced Industrial Science and Technology (AIST) - Geological Survey of Japan (GSJ) ( email )

1-1-1 Higashi
Tsukuba, Ibaraki
Japan

Ziqiu Xue

RITE: Research Institute of Innovative Technology for the Earth ( email )

Kyoto, 619-0292
Japan

Geological Carbon dioxide Storage Technology Research Association

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