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Technology
Assessment & Research (TA&R) Program
| Project Number |
508 |
| Date of Summary |
September 07, 2005 |
| Subject |
Workshop on Sustained Casing Remediation Practices |
| Performing Activity |
Offshore Technology Research Center |
| Principal Investigator |
Ward, Gilbert and Wolford |
| Contracting Agency |
Minerals Management Service |
| Estimated Completion |
Completed |
| Description |
A workshop API RP for Sustained Casing Pressure, was
conducted on August 17-18, 2004, Houston, Texas, to address MMS’s, safety
concerns on uncontrolled annular flows. The new API Work Group formed for
this project is comprised of government and industry representatives of
several organizations including API Washington staff, API Executive
Committee on Drilling and Production Operations, API Subcommittee 10 on Well
Cements, International Standards Organization, International Association of
Drilling Contractors, Drilling Engineering Association, the MMS bureau, and
other interested parties. Issues related to sustained casing-head pressure (SCP)
were also discussed. The API Work Group on Annular Flow Prevention and
Remediation agreed to prepare “best practices” to improve zonal isolation,
reduce the occurrence of SCP, and help prevent annular flow incidents prior
to, during, and after cementing operations. Studies of all available
information on flow event causes and prevention helped the Work Group write
best practice documents for publication as API Recommended Practices. The
MMS is considering the incorporation of these API publications into new
regulations for well construction in federally regulated areas. The API Work
Group is responsible for the following API Recommended Practice
publications:
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RP-65 Part One “Cementing Shallow Water Flow Zones in Deep Water
wells”
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RP-65 Part Two “Isolating Potential Flow Zones in Well Drilling and
Cementing Operations” and
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RP-65 Part Three “Zone Isolation to Prevent and Remediate Sustained
Casing Pressure”
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| Progress |
A workshop API RP for Sustained Casing Pressure, was conducted on August
17-18, 2004, Houston, Texas, to address MMS’s, safety concerns on
uncontrolled annular flows. The new API Work Group formed for this project
is comprised of government and industry representatives of several
organizations including API Washington staff, API Executive Committee on
Drilling and Production Operations, API Subcommittee 10 on Well Cements,
International Standards Organization, International Association of Drilling
Contractors, Drilling Engineering Association, the MMS bureau, and other
interested parties. For workshop information please contact the Principal
Investigator. MMS will not publish the Final Report because of the
proprietary data agreement with participating companies. |
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