Contaminated Pipeline Cleared, North Sea | SLB

North Sea 40-km pipeline decontaminated and cleared for gas production

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North Sea, 海上

As the gas was diverted to the production platform, ~1,000 bbl of condensate were collected and stored, and ~3,000 bbl of water were treated and disposed in compliance with environmental regulations. The water treatment and disposal solution saved shipping and disposal costs, as well as platform deck space.

An operator in the North Sea was facing challenges with a subsea pipeline connected to an offshore well. To increase gas flow in the well, the production zone would be isolated and a new completion run. Once a new layer was perforated and hydraulic fracturing applied, the operator expected substantial gas production to commence. However, during previous operations, the 40-km undersea pipeline had accumulated a mixture of water and condensate that threatened to limit gas production.

The Production ExPRESS solutions package successfully removed condensate and water residuals from the pipeline. While gas was being diverted to the production platform, ~1,000 bbl of condensate were collected and stored, and ~3,000 bbl of water were treated and disposed in compliance with environmental regulations. By enabling onsite water treatment and disposal, the Production ExPRESS solutions package saved the operator shipping and disposal costs while eliminating the need for multiple large storage tanks on the limited platform deck space.

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