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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 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.

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Last Updated September 29, 2016, 16:44 (LMT)
Created September 29, 2016, 16:44 (LMT)
Citation Myal, F.R. Branagan, P.T. ---- Roy Long, Drilling and early testing of a sidetrack from the slant hole completion test well, 2016-09-29, https://edx.netl.doe.gov/dataset/drilling-and-early-testing-of-a-sidetrack-from-the-slant-hole-completion-test-well
Netl Product yes
Poc Email Roy.long@netl.doe.gov
Point Of Contact Roy Long
Program Or Project KMD
Publication Date 1992-6-1