Investigation and evaluation of geopressured-geothermal wells. Final report

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Description

This well was approved for reentry and test operations after consideration of a number of reentry prospects in Cameron Parish. This was a marsh location that required 2.3 miles of board road and replacement of two bridges. Road work was commenced on June 19, 1978, and site preparation was completed on October 25. The drilling rig moved on location on November 2. This rig was released on December 16. Reentry operations were completely unsuccessful because of failure to effect a tieback of the 7'' casing. The plugging and abandonment records filed with the Louisiana Department of Conservtion indicated that the ... continued below

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Medium: P; Size: Pages: 95

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Dobson, R.J.; Hartsock, J.H. & Willits, M.H. January 1, 1979.

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Description

This well was approved for reentry and test operations after consideration of a number of reentry prospects in Cameron Parish. This was a marsh location that required 2.3 miles of board road and replacement of two bridges. Road work was commenced on June 19, 1978, and site preparation was completed on October 25. The drilling rig moved on location on November 2. This rig was released on December 16. Reentry operations were completely unsuccessful because of failure to effect a tieback of the 7'' casing. The plugging and abandonment records filed with the Louisiana Department of Conservtion indicated that the top of the 7'' casing was at or near the base of the 10-3/4'' casing when the well was plugged. These records did not specify that the 7'' casing had been dynamited one or more times during the recovery operation. Numerous attempts were made to locate and condition the 7'' casing for tying back to the surface. All these were unsuccessful. The top of the 7'' casing was never clearly located, or if located was subsequently lost, and therefore it was not possible to cut and recover the damaged section in order to effect a tieback. The total cost of the attempted reentry was approximately $1,925,000. Of this amount, some $444,000 was spent on road and site preparation and disposal well. This expenditure can be salvaged in the event a decision is made to redrill the well.

Physical Description

Medium: P; Size: Pages: 95

Notes

NTIS, PC A05/MF A01.

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  • Report No.: NVO-1528-4
  • Grant Number: EG-77-C-08-1528
  • DOI: 10.2172/5321619 | External Link
  • Office of Scientific & Technical Information Report Number: 5321619
  • Archival Resource Key: ark:/67531/metadc1074885

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • January 1, 1979

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

Description Last Updated

  • April 4, 2018, 12:53 p.m.

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Dobson, R.J.; Hartsock, J.H. & Willits, M.H. Investigation and evaluation of geopressured-geothermal wells. Final report, report, January 1, 1979; United States. (digital.library.unt.edu/ark:/67531/metadc1074885/: accessed July 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.