期刊
12TH INTERNATIONAL CONFERENCE ON GREENHOUSE GAS CONTROL TECHNOLOGIES, GHGT-12
卷 63, 期 -, 页码 3956-3962出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.egypro.2014.11.425
关键词
CO2-EOR; Monitoring well; It-tuhe; Sampling technology; Baseline; Shengli oilfield; CCUS
The carbon dioxide (CO2.) flooding to improve the recovery ration of oil reservoir (EOR) is becoming one main way of EOR in the Shengli Oilfield, Shandong province, Northeast China. As one of the largest and oldest oilfields in China, the Shengli oilfield CCUS demonstration project is a true full-chain project from capture, pipeline transportation, utilization through storage. In particular, this CCUS project implements a wide spectrum of monitoring and assessments. A novel shallow well monitoring system is developed to detect the leakage of CO2 at shallow formations. The core of this novel system is to adopt the U-tube sampling technology to accomplish collections of samples of water mid gas in a convenient and cost-effective way. The shallow well is designated to a depth of 10 meters with a maximum five-block separation, i.e. it can obtain samples of water and/or gas at five different depths in maximum in a shallow well. The novel system has been tested to obtain geochemical samples of water and gas during a CO2-EOR demonstration experiment conducted in the Shengli oilfield. (C) 2015 Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creavativecommons.org/licesses/by-nc-nd/3.0/). Peer-review under responsibility of the Organizing Committee of GLIGT-12
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