Advancements in Openhole Completion Technology - Establishing and Sustaining Differentiating Sand Control Completion Performance

Barry, Matthew R.; Hecker, M.; Yeh, Chien Hung; Moffett, Tracy

doi:10.2523/14644-ms

Cited by 2 publications

(1 citation statement)

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“…Chambers et al (2000) discuss possible fluid loss associated with contact with the filter cake. Some operators prefer conditioning the NAF that was used to drill to TD (Barry et al 2012). While this method is successful and field proven, one of the drawbacks is the amount time it may require to condition the system.…”

Section: Introductionmentioning

confidence: 99%

A 20/80 Oil/Water Ratio Nonaqueous Screen Running System Successfully Employed In Equatorial Guinea

et al. 2013

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An innovative surfactant chemistry in a nonaqueous system with an oil-to-water ratio (OWR) of 20/80 was effectively utilized for the first time to provide wellbore stability and run a sand-control screen in an openhole gravelpack completion. This novel type of invert emulsion system uses relatively higher aqueous internal phase, i.e., less than 50/50 OWR, which subsequently allows for a relatively higher density than the drilling fluid. More importantly this system is maintained as solids free and oil continuous.The increasing application of Inflow Control Devices/Intelligent Wellbore Systems and swellable elastomers as well as drilling longer intervals and their exposure to shale/sand dictates the use of compatible and solids-reduced invert systems to reduce the risk of an unsuccessful gravel placement treatment caused by shale swelling or plugging of sand control screens. This novel high-internal phase system provides flexibility for these types of completions. The use of the higher internal phase allows the formulation of oil-continuous solids-free systems while still achieving the required density necessary in solidsladen aqueous systems. This paper will focus on the selection of the 20/80 high-internal-phase system for this openhole completion, the upfront testing and planning for deployment. Discussion will also be provided with respect to the mixing of the system at the wellsite as well as the lessons learned.

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Section: Introductionmentioning

confidence: 99%