Tennessee Gas maintained an operational flow order for Wednesday due to nominations in excess of available capacity in Zone 0 and at Niagara. It placed restrictions on deliveries to Station 40 and at its Niagara River Meter. Tennessee also said it will not accept any increases pathed through MLV 528, excluding the header on the Bluewater system and the TTT line 523M-2300 from Eugene Island 365 to Ship Shoal 198. It restricted flow through Station 834. For details see its pipeline bulletin board. Tennessee also confirmed leaks on its 26-inch diameter pipeline at Ship Shoal 157 and Ship Shoal 144. Divers are assessing the damage. Its mainline valve 528 remains shut in due to water at the Port Sulphur Compressor Station (Station 527). It also incurred damage in the South Timbalier area on several lines (524J-100, 524J-600, and 524J-800) and has leaks on the 524C-100 line and the 524C-600 line. Tennessee said it has survey boats inspecting the West Delta, South Pass, and Main Pass areas. It determined that the meters on the Blue Water Header (from Vermillion 245 to Ship Shoal 198) as well as the TTT line 523M-2300 (from Eugene Island 365 to Ship Shoal 198) are available and can begin flowing. The east leg of the Blue Water system remains shut-in. Therefore, gas that would typically be processed at the Yscloskey processing plant will now be flowing on the Blue Water header in a westerly direction and will require processing at the Blue Water Plant. Producers flowing on this portion of the Blue Water system with a hydrocarbon dew point greater than 20 degrees must sign a processing agreement with the Blue Water plant immediately.
Tag / Nominations
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Transportation Notes
Columbia Gulf said it will begin accepting nominations Wednesday for up to 183,000 Dth/d Egan Hub Storage in South Louisiana following a one-day maintenance shutdown of Egan Tuesday. The pipeline had previously expected to have only 150,000 Dth/d of Egan capacity available Wednesday (see Daily GPI, July 26).
Transportation Notes
Destin reported reopening the valve on its export line at Main Pass 260 and was accepting Intraday 2 (cycle 4) nominations for Monday’s gas day. The pipeline had turned off the valve to offshore receipts upstream of Main Pass 260 at 3 p.m. Friday in preparation for the approach of Hurricane Dennis (see Daily GPI, July 11).
Transportation Notes
Because of high linepack, Southern California Gas declared an OFO effective with Timely Cycle nominations for Saturday. The LDC said it would assess Buy-Back charges in accordance with its rules and tariffs to those customers who delivered into its system more than 110% of their actual gas usage.
Transportation Notes
Transwestern has scheduled all nominations to zero at its Needles delivery interconnect into the Southern California Gas system through March 7 while it installs pig launchers and receivers to improve pipeline integrity. The work began Tuesday. Transwestern also cut La Plata (CO) Station capacity to zero Tuesday as it began three days of compressor unit exchanges; normal station capacity is 500,000 MMBtu/d. The La Plata work affects the Northwest/Ignacio, Williams/Ignacio, BP Florida and Red Cedar/La Plata interconnects. And in another project that began Tuesday, Transwestern is replacing valves at the El Paso Blanco delivery interconnect. There was no flow at the point Tuesday. For Wednesday and Thursday, the Elm Ridge Resources and Red Cedar Arkansas Loop receipt interconnects will only be able to deliver gas to Questar Bloomfield and El Paso Blanco and/or through the Blanco Hub to Thoreau.
Transportation Notes
El Paso canceled an Unauthorized Overpull Penalty situation, which had been declared Tuesday, effective with Cycle 3 nominations Friday. The pipeline also reported taking Roswell (NM) Station’s #3 compressor down to replace a turbocharger and to perform mechanical inspections. The action reduced capacity of the San Juan Crossover by 20 MMcf/d from a base capacity of 650 MMcf/d Friday. The constraint is expected to continue through Tuesday.
Transportation Notes
El Paso canceled an Unauthorized Overpull Penalty situation, which had been declared Tuesday, effective with Cycle 3 nominations Friday. The pipeline also reported taking Roswell (NM) Station’s #3 compressor down to replace a turbocharger and to perform mechanical inspections. The action reduced capacity of the San Juan Crossover by 20 MMcf/d from a base capacity of 650 MMcf/d Friday. The constraint is expected to continue through Tuesday.
Transportation Notes
Southern California Gas declared a high-linepack OFO effective with Timely Cycle nominations for Saturday. Deliveries into the system were to be limited to no more than 110% of nominated volume.
Transportation Notes
In addition to a high-linepack OFO for Friday’s Evening Cycle nominations, Southern California Gas declared an additional OFO for the Timely Cycle on Saturday.
Transportation Notes
Southern California Gas issued a high-linepack OFO for Friday’s Evening Cycle nominations, but did not have one in effect for Saturday’s gas day. The OFO carried a 10% tolerance for positive imbalances.
