VR90 ® X-Ray service diagnoses condition of downhole safety valve THE CHALLENGE The operator was considering converting a North Sea injection well into a producer, but the decision was held up by what appeared to be a malfunctioning downhole safety valve (DHSV). They suspected that the flapper on the valve was stuck in an open position. This would prevent the placement of an insert safety valve, leaving them with a tough choice between atte

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