The subsea valve at Matagorda 758 on the Matagorda Offshore Pipeline System (MOPS) was successfully closed late Wednesday afternoon and some production was to be brought back online Thursday, MOPS operator Northern Natural Gas said. Thirteen receipt point meters had been allocated to zero March 1 after a leak was detected upstream of the Matagorda 686 platform (see Daily GPI, March 2). “Upon establishment of required flow, a pig will be launched from platform 686,” Northern said. “Depending on the amount of liquids received, it is expected that the MOPS system receipts and deliveries will be shut in for 12-24 hours for liquids handling operations.” Production on all platforms downstream of the Matagorda 758 subsea valve is expected by Saturday, but the Mustang Island 782 SS, 782/785 SS and 787/805 platforms, which are upstream of the valve, must remain shut in until repairs are completed.

Effective for Monday’s gas day until further notice, Dominion will reduce capacity of the Appalachian Eastern System to 5,000 Dth/d.

TGT has scheduled a semiannual shut-in test of its Midland, KY storage field for April 17-28.

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