深部帯水層へのCO2地中貯留における初期圧入段階におけるモニタリング井での圧力応答の予測

Translated title of the contribution: Prediction of Pressure Response at A Monitoring well in Initial Injection Stages of CO2 Geological Storage into A Deep Aquifers

Qiang Sun, K. Sasaki, Yuichi Sugai, Ronald Nguele

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, pressure response at A monitoring well in early stage of CO2 geological storage were predicted against pressure build-up at CO2 injector after starting CO2 injection into a deep saline aquifer to design the monitoring well distance from the injector and resolution or sensitivity of a pressure transmitter installed in the monitoring well. The numerical simulations on pressure distributions and expanding CO2 plume front were carried out using a reservoir simulator, CMG-STARS, for the aquifer (10 km in radius, 50m in height) with open boundary under 1,000 m from the ground or seabed level. The ratio of pressure response at the monitoring well against the pressure build-up at the injector have been presented for various monitoring locations (500 to 5,000 m from a injector) and homogeneous and heterogeneous models of horizontal permeability distribution in the aquifer (Base Model and Model 1, 2 & 3) and CO2 injection patters during 100 days (Scheme 1, 2 & 3). It has been presented from the numerical simulation results that the monitoring well radial distance from the injector is recommended to be 2,000 to 4,000 m or less than 1000 m when the resolution or sensitivity of the pressure transmitter is 1kPa or 10kPa, respectively.
Translated title of the contributionPrediction of Pressure Response at A Monitoring well in Initial Injection Stages of CO2 Geological Storage into A Deep Aquifers
Original languageJapanese
Pages (from-to)17-23
Number of pages7
JournalJournal of MMIJ
Volume137
Issue number1
DOIs
Publication statusPublished - Jan 29 2021

All Science Journal Classification (ASJC) codes

  • Earth and Planetary Sciences(all)
  • Environmental Science(all)
  • Energy(all)

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