IntegratedSERVICES DRILLING CONTRACTS IN MATURE FIELDS

Mature fields concentrate the industry's contracting problem into its sharpest form: many similar wells, thin margins, and drilling as the largest controllable capital expenditure. The literature on how to contract that drilling is split into two poorly connected bodies: industry case reports that are rich in detail but self-reported, and a mature project-management theory of incentives, transaction costs and relational governance that is seldom applied to drilling. Geologic® prepared a review that connects the two: a typology of contracting models on a control-and-risk spectrum, from dayrate through footage, turnkey and incentive contracts to integrated services and alliancing, traced from 1980s practice through the North Sea CRINE reforms to today's integrated models.

The review's distinctive move is a criterion-referenced evidence grading of a verified twelve-case corpus spanning Oman, the Gulf of Mexico, Sarawak and Europe. No case attains the top grade, because independent evaluation does not yet exist in this literature, and the widely repeated claim that integrated contracting cuts non-productive time by some specific percentage finds no support in the verified corpus. The review treats that weakness as its central finding, distils a four-dimension design framework, and closes with a research agenda targeting the evidence the field lacks.