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What happened to the daywork contract

Conference · · Soc. Pet. Eng. AIME, Pap.; (United States)
OSTI ID:5699543
This paper develops the historical roles of the drilling contractor and the operator by categorizing land wells into areas of difficulty and risks. The first area is composed of shallow wells that are suitable for footage drilling. The second group contains wells, usually medium depth, with some risk and hole problems. The third category includes the high risk, deep wells with high pore pressure and protection casing. Since January, 1982, the role of footage drilling has been restored in the first category wells. In category 2 wells, the daywork contracts have been replaced by footage and turnkeys to total depth. In the 3rd category, the footage and turnkeys have been extended through landing and cementing the protection casing after penetrating abnormal pressure. This paper develops that long term, the responsible operator will self insure on the high risk wells by drilling daywork. The responsible, surviving contractor will have to be paid for trouble on each well that can range from 10 to above 30 percent. To the contractor, it's one contract risk that must be covered long term on every well. Even though the footage and turnkeys have the cosmetic appeal of improving the drilling contractor's motivation, the self insured day rate contract is expected to prevail with the operators who drilled numerous wells. The exception will be operation where footage and turnkeys will be useful to establish a firm price.
Research Organization:
Dual Drilling Co.
OSTI ID:
5699543
Report Number(s):
CONF-830203-
Conference Information:
Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: IADC/SPE 11424
Country of Publication:
United States
Language:
English