Tennessee said it is experiencing hydrocarbon dew point (HDP) temperatures in excess of its 20-degree limit upstream of Station 87 (Portland, TN) due to high levels of hydrocarbons in deliveries into the 500 Line and the limited ability of the Yscloskey Processing Plant to sufficiently process that gas. Targa Midstream, operator of the Yscloskey facility, has informed Tennessee that the plant should be back to full operation by mid to late May. As alternatives to imposing further corrective actions, Tennessee said it is exploring various short-term operational options that may allow continued flows in the affected area in a safe and reliable manner. However, Tennessee asked shippers and producers to consider what steps they may take voluntarily to conform deliveries into the 500 Line, including but not limited to seeking additional processing alternatives such as deliveries to the Toca and/or Discovery processing plants. “Tennessee strongly encourages customers to make these processing arrangements to ensure deliveries into the pipeline system will conform to Tennessee’s posted HDP limit,” the pipeline said. If HDP temperatures are not sufficiently lowered, Tennessee said it will initiate further corrective action to protect operational integrity.

Gulf South confirmed Friday that gas quality issues had been resolved at Venice Plant in southeast Louisiana (see Daily GPI, April 27) and said it would attempt to confirm nominations there effective immediately.

Conditions are starting to improve west of Bienville Compressor Station in North Louisiana (see Daily GPI, May 5), Southern Natural Gas said Friday, but it will continue to monitor actual receipts versus scheduled receipts through the weekend. “If we experience receipts in excess of scheduled quantities and pipeline capacity west of the Bienville Compressor Station, we will implement a Type 5 OFO,” Southern said.

Panhandle Eastern said an outage at its Michigan Consolidated Gas meter to replace regulators, which had been scheduled to begin April 17 but was postponed, has been reset to begin Sept. 25. The expected duration is 17 days, during which Panhandle will limit total customer nominations at the MCON and Southern Station points to 150,000 Dth/d.

Sea Robin Pipeline has scheduled on-line cleaning on its mainline from Vermilion 149 into the Devon Processing Plant starting Monday evening, and it anticipates that liquids could be recovered at the liquid separation facility. Offshore producers could experience higher daily pressure and pressure fluctuations, while onshore deliveries could experience rate fluctuations until this work is completed.

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