Drilling and early testing of a sidetrack from the slant hole completion test well
- CER Corp., Las Vegas, NV (United States)
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 side- track 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 1,000 ft to the east of the old hole. The hole displacement was planned to avoid formation damage from over 1,500 barrels of drilling mud lost in the first well.
- Research Organization:
- USDOE Morgantown Energy Technology Center (METC), WV (United States)
- OSTI ID:
- 138829
- Report Number(s):
- DOE/METC-92-6125; CONF-920584-; ON: DE92001278; TRN: 93:000764-005
- Resource Relation:
- Conference: US Department of Energy contractor review meeting on natural gas research and development, Morgantown, WV (United States), 5-6 May 1992; Other Information: PBD: May 1992; Related Information: Is Part Of Proceedings of the natural gas research and development contractors review meeting; Malone, R.D.; Shoemaker, H.D.; Byrer, C.W. [eds.]; PB: 408 p.
- Country of Publication:
- United States
- Language:
- English
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