Page 16: of Marine Technology Magazine (June 2015)

Wireless Intervention

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Reducing reservoir and well uncertainty via wireless Reducing reservoir and well uncertainty via wireless intervention is one large step toward the “wireless reservoir”intervention is one large step toward the “wireless reservoir”

By Brian Champion ot knowing how connected or compartmentalized a sient response” —monitored during a pressure buildup period reservoir is when evaluating appraisal or development — to adequately investigate distant boundaries. This can mean drilling is a major concern. So, too, is well integrity. that critical decisions regarding future ? eld development plans

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Having a better understanding of reservoir connectivity can are taken based on limited or insuf? cient data sets. provide signi? cant bene? ts in determining the most effective There is also an increasing industry focus on the development drainage and ? eld-development plans. and application of new technology for well integrity monitor-

One route to reducing uncertainty is to maximize time spent ing. Examples include the long-term monitoring of the pres- appraising the prospect. While multi-well interference and sure in multiple annuli (the spaces either side of drill casing) in long-term pressure testing provide valuable data on connected subsea production wells and the veri? cation of pressure barri- volumes, there is always time-cost pressure to curb testing time, ers during well suspension or plug and abandonment (P&A).

especially in the high-cost, deep-water subsea environment. Wireless can be deployed to address of these concerns. Res-

As a result, well testing operations may be terminated early, ervoir and well integrity monitoring are about preventing the before there has been suf? cient time for the “pressure-tran- offshore industry’s most serious reverses.

June 2015

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