Cristin-resultat-ID: 1907352
Sist endret: 11. august 2021, 09:46
Resultat
Rapport
2021

A Review of International Field Experience with Well Integrity at Carbon Utilization and Storage Sites

Bidragsytere:
  • Laura Edvardsen
  • Pierre Cerasi og
  • Malin Torsæter

Utgiver/serie

Utgiver

DOE.NETL-2021.2649

Om resultatet

Rapport
Publiseringsår: 2021
Antall sider: 122
Revidert utgave

Klassifisering

Fagfelt (NPI)

Fagfelt: Geovitenskap
- Fagområde: Realfag og teknologi

Beskrivelse Beskrivelse

Tittel

A Review of International Field Experience with Well Integrity at Carbon Utilization and Storage Sites

Sammendrag

This report details findings from a survey of well integrity experiences elicited from operators of geologic carbon storage (GCS) and carbon dioxide enhanced oil recovery (CO2-EOR) sites around the world. The survey consisted of 41 questions organized in four sections and its goal was to obtain information about site characteristics and operator experiences with well integrity, monitoring methods, and risk assessment of legacy wells. Current literature relevant to the survey questions was also reviewed and summarized to provide context for survey responses and identify areas where field experiences with well integrity do and do not align with the current state of research. This project was funded jointly by the United States Department of Energy (US DOE) and the Norwegian Carbon Capture and Storage (NCCS) Research Centre. The work was collaboratively accomplished by an international research team from Lawrence Livermore National Laboratory (LLNL) and the National Energy Technology Laboratory (NETL) in the United States, and SINTEF in Norway. The survey was vetted by experts in the oil and gas industry and the US DOE prior to its solicitation. The survey was sent to 55 prospective respondents in North America, Europe, Asia, Africa, Australia and South America. Twenty-two responses were received between April 2019 and August 2020. The responses were received in an anonymous format to keep the identities of the survey respondents and their sites confidential, and to encourage candid feedback. The survey responses and accompanying literature review provided valuable insight into the alignment between well integrity issues experienced by CO2 injection operators in the field and the well integrity issues studied by the research community. New areas of needed research were identified and are detailed in this report. The survey findings could have been more impactful if more responses were acquired. The relatively low response rate (only 22 respondents, representing a 40% response rate) is perhaps indicative of operators’ reluctance to self-report well integrity problems in a formal survey setting. A less formal in-person setting, such as a workshop or conference focused on understanding well integrity in the context of CO2 injection, may be a better environment for candid exchanges of information among researchers, operators, and regulators. Nevertheless, the survey results presented here represent a valuable body of information on the current state-of-practice, to identify research needs, and to provide context for future interactions between researchers, operators, and regulators.

Bidragsytere

Laura Edvardsen

  • Tilknyttet:
    Forfatter
    ved Anvendt geovitenskap ved SINTEF AS

Pierre Cerasi

  • Tilknyttet:
    Forfatter
    ved Anvendt geovitenskap ved SINTEF AS

Malin Torsæter

  • Tilknyttet:
    Forfatter
    ved Anvendt geovitenskap ved SINTEF AS
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