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- W2006974482 abstract "Abstract Formation sampling-while-drilling (FSWD) technology has recently been introduced, and this new method of obtaining formation samples is expected to reduce costs in development and appraisal wells. Formation testing on wireline (FSWL) pumpout tools have become the preferred method for obtaining formation samples in the drilling stages of a well to appraise the production potential. Although FSWD has the potential of reducing the sampling time, many factors must be considered when evaluating the economic benefit of a new technology. Now that day rates for deepwater drilling have reached $1 million, this has become one of the primary considerations. This paper presents an economic model that can be used to evaluate the cost benefit and to make a comparison between wireline formation fluid samples acquired by the customer in a deep water field in Campos Basin, Brazil, in two scenarios (clastics and carbonates), with the simulation results obtained by the FSWD sensor. Recent publications indicate a potential to reduce the sampling time with FSWD because of reduced invasion time. They also consider other factors, such as the permeability, porosity, and in-situ viscosity of the producing intervals, and the mud system properties that can have an equal effect on the invasion and pumpout time required to reach a sufficiently low contamination sample to evaluate the reservoir. These factors are then used in an economic model that features operation costs for FSWL and FSWD, including the uncertainties regarding the following: Fishing time, which is normally associated with the wireline operation Reduced pumping times associated with lower invasion, which will also reduce operational pump failures associated with extending pumping times Ability to obtain fluid samples in high angle or horizontal sections, reducing the operational time and enabling the operators to change their traditional well construction programs reducing or cancelling the need to drill a pilot well section and/or setting an intermediate casing string" @default.
- W2006974482 created "2016-06-24" @default.
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- W2006974482 date "2010-12-01" @default.
- W2006974482 modified "2023-10-16" @default.
- W2006974482 title "Potential Economic Value-Added Model Using Formation Sampling-While-Drilling in Development Fields" @default.
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- W2006974482 doi "https://doi.org/10.2118/138956-ms" @default.
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