Well Integrity Assessment of a 68 year old Well at a CO2 Injection Project

Duguid, Andrew; Carey, J. William; Butsch, Robert

doi:10.1016/j.egypro.2014.11.602

Cited by 24 publications

(13 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cement bond logs are commonly used in wells to evaluate the quality of the cement behind the casing (Bellabarba et al, 2008;Duguid et al, 2014;Dusseault et al, 2014), including inferring the presence of microannuli. Duguid et al, 2014 interpreted cement bond logs from a 68-year-old well, and found that much of the material behind the casing was unconsolidated cement that did not provide good isolation capacity (Duguid et al, 2014). They interpreted that the microannulus was at least 70 microns by calculating the strain produced in the casing when internal pressure was applied.…”

Section: Introductionmentioning

confidence: 99%

Characterization of wellbore microannuli

Fernandez

Matteo

Taha

et al. 2019

Journal of Natural Gas Science and Engineering

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Characterization of wellbore microannuli

Fernandez

Matteo

Taha

et al. 2019

Journal of Natural Gas Science and Engineering

View full text Add to dashboard Cite

“…After the abandonment construction, the well integrity must be monitored by cement bond logging or ultrasonic logging. For long‐term monitoring, the original pressure test and packer isolation test must be implemented every year …”

Section: Evaluation Methods Of Well Abandonmentmentioning

confidence: 99%

Abandonment process for injection well of China's Shenhua carbon dioxide geological storage demonstration project

Kuang

et al. 2017

Greenhouse Gases

View full text Add to dashboard Cite

The abandonment process is a highly important part of project management for CO2 capture and storage (CCS) projects. For the first full procedure of a CO2 geological storage demonstration project in a deep saline aquifer in China, this paper describes the abandonment process of a CO2 operating well. The key idea that we advance is that wellbore integrity tests should be conducted before the abandonment, and consideration must be given to the CO2 corrosion resistance materials, the design method of sealing the plugs, monitoring tests (such as pressure tests), and the use of a long‐term monitoring system (such as the original pressure test and a packer isolation test every year). According to Chinese regulations and related experience in the oil and gas industry, the factors chosen are the pressure factor, cap rock, potable water layer, unexploited resource layer, suspected leak path, perforated zone, productive hydrocarbon zone without perforation, and water‐injection and waste‐water treatment layers. We intuitively evaluate and quantify the plugged zones using the modified analytical hierarchy process (M‐AHP) method to determine the positions of the plugs. Next, referring to the Chinese regulations on Well abandonment and inactive well practices, the last plug located in the Quaternary strata is compulsorily ensured, and the length of all plugs is also determined. Finally, the paper summarizes the methodology and presents suggestions for the abandonment process of the Shenhua CCS project. © 2017 Society of Chemical Industry and John Wiley & Sons, Ltd.

show abstract

“…Before a monitoring technology ranking could be developed it was important to review the previous WMP work relating to risk assessment, leakage scenarios, and monitoring. The Best Practice Manual from the WMP (PTRC, 2012a) was reviewed along with the following data and results provided by the PTRC including (URS, 2010b) (URS, 2010a), (Irani, 2012) (PTRC, 2012a), (Crow, et al, 2010), (Duguid, et al, 2013), (Duguid, et al, 2014), (Hawkes & Gardner, 2013), (Cavanagh, 2013).…”

Section: Site Specific Project Reviewmentioning

confidence: 99%

Monitoring technology ranking methodology for CO2-EOR sites using the Weyburn-Midale Field as a case study

Zaluski

El-Kaseeh

Lee

et al. 2016

International Journal of Greenhouse Gas Control

Self Cite

View full text Add to dashboard Cite

In a carbon dioxide (CO 2) enhanced oil recovery (EOR) operation, CO 2 is injected into a hydrocarbon reservoir to enhance hydrocarbon production. Much of this CO 2 is recycled for reinjection when the hydrocarbons are produced; however, a large amount is permanently stored in the reservoir. If a CO 2-EOR operation intends to claim CO 2 storage credit for this stored CO 2, it needs to demonstrate that the CO 2 is safely stored in the subsurface by strategically deploying monitoring technologies. For the operation to maintain profitability goals, these monitoring technologies also need to be cost-effective. If the safety of the CO 2 storage is demonstrated, the project will be classified a carbon capture, utilization, and storage (CCUS) project. The main goal of CO 2-EOR is oil production, not CO 2 storage. Because CO 2-EOR originated as an oil production technique, the EOR process is subject to a less stringent regulatory environment than CCUS projects. These differences in the CO 2 storage accounting and the regulatory environment mean that CO 2-EOR projects need to demonstrate the long-term containment of CO 2 within the reservoir with additional monitoring in order to claim any CO 2 emission credits. Converting a CO 2-EOR project to a CCUS project requires a tailored site-specific approach. The methodology employed will differ from project to project due to differences in project risk, geology, operations history, and regulatory environment. This paper takes the CO 2-EOR Weyburn-Midale Field (WMF) as a case study to rank monitoring strategies that may be required to shift the WMF from CO 2-EOR to CCUS. This study consisted of an in-depth review of the identified risks, the potential leakage pathways, various regulatory requirements, and the already deployed monitoring techniques. The goal was to develop a risk-, economic-, and regulatory-based monitoring technology ranking system that is suitable for the WMF. While specific to the WMF, the methodology presented here can be adapted by other CO 2-EOR operators who endeavor to demonstrate that the non-recycled portion of the CO 2 injected into the formation(s) by their project(s) is permanently stored.

show abstract

Well Integrity Assessment of a 68 year old Well at a CO2 Injection Project

Cited by 24 publications

References 9 publications

Characterization of wellbore microannuli

Characterization of wellbore microannuli

Abandonment process for injection well of China's Shenhua carbon dioxide geological storage demonstration project

Monitoring technology ranking methodology for CO2-EOR sites using the Weyburn-Midale Field as a case study

Contact Info

Product

Resources

About