Drilling and early testing of a sidetrack from the slant hole completion test well

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During the winter of 1990 to 1991, the Department of Energy evaluated several options to completing the originally-planned slant hole production tests. A decision was made to sidetrack the original hole and to redrill the 60 and 90{degrees} sections. The objectives for drilling the sidetrack to the original slant hole wellbore are as follows: (1) Test high angle and horizontal drilling and completion technologies as an alternative to vertical wells and hydraulic fracture treatments in tight, naturally-fractured reservoirs. (2) Production test the Cozzette open-hole interval into the pipeline to determine long-term gas productivity. (3) Production test selected paludal sandstones in ... continued below

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Pages: (13 p)

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Myal, F.R. & Branagan, P.T. January 1, 1992.

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Description

During the winter of 1990 to 1991, the Department of Energy evaluated several options to completing the originally-planned slant hole production tests. A decision was made to sidetrack the original hole and to redrill the 60 and 90{degrees} sections. The objectives for drilling the sidetrack to the original slant hole wellbore are as follows: (1) Test high angle and horizontal drilling and completion technologies as an alternative to vertical wells and hydraulic fracture treatments in tight, naturally-fractured reservoirs. (2) Production test the Cozzette open-hole interval into the pipeline to determine long-term gas productivity. (3) Production test selected paludal sandstones in the 60{degrees} section of the wellbore to determine long term gas productivity. A complex well path was designed to parallel the optimum northerly azimuth and the high angle-horizontal inclination program, but to directionally drill the lower wellbore 1000 ft to the east of the old hole. The hole displacement was planned to avoid formation damage from over 1500 barrels of drilling mud lost in the first well. Figure 1 presents the Mesaverde geologic column near the wellsite.

Physical Description

Pages: (13 p)

Notes

OSTI; NTIS; GPO Dep.

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  • US Department of Energy contractor review meeting on natural gas research and development, Morgantown, WV (United States), 5-6 May 1992

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  • Other: DE92014224
  • Report No.: DOE/MC/26024-92/C0019
  • Report No.: CONF-920584--5
  • Grant Number: AC21-90MC26024
  • Office of Scientific & Technical Information Report Number: 5287762
  • Archival Resource Key: ark:/67531/metadc1065767

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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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  • January 1, 1992

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

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  • Feb. 26, 2018, 12:15 p.m.

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Myal, F.R. & Branagan, P.T. Drilling and early testing of a sidetrack from the slant hole completion test well, article, January 1, 1992; United States. (digital.library.unt.edu/ark:/67531/metadc1065767/: accessed November 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.