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080151107
NEXUS Gas Transmission, LLC (U.S.)
Not a critical notice
06/21/2022
10:18:37 AM
09/19/2022
10:13:37 AM
121998
Supersede
Planned Service Outage
06/21/2022
10:18:37 AM
121852

No response required


NEXUS 2022 Outage Schedule -- UPDATE


Notice Text:


Download File: NEXUS Major Outage Schedule.pdf
Download File: NEXUS 2022 Outage Schedule.pdf

NXUS Planned Outages

Below is a list of major outages known to date that will affect capacity or that impact major receipt/delivery areas on the NEXUS Gas Transmission, LLC (NXUS) system.  Due to unforeseen delays or scheduling conflicts, the dates of the outages listed below are subject to change.  In addition, this schedule is not a complete list of all outages that will occur this outage season, and we reserve the right to update this list to reflect additional major outages when the timing of such major outages can be reasonably forecasted.  Any changes to the list below will be posted at the earliest practical date.  Parties are urged to monitor these postings to access the most current information.

 

NXUS Operational Capacity Matrix:

Below is an operational capacity matrix of anticipated NXUS mainline capacities based on major outages know to date that will affect the mainline capacity on the NXUS system for the outage season.  Due to unforeseen delays or scheduling conflicts, the dates and capacities listed below are subject to change.  In addition, this matrix may not be a complete list of all capacities based on major outages that will occur this outage season and we reserve the right to update this list to reflect additional capacity reductions based on major outages when the timing of such major outages can be reasonably forecasted. Any changes to the matrix below will be posted at the earliest practical date.

 

 

 

Colerain

Salineville

Hanoverton

Wadsworth

Clyde

Waterville

June 21 - 24

950

950

1,358

1,358

1,338

1,288

June 25 - 30

950

950

1,454

1,452

1,434

1,384

July 1 - 11

950

950

1,454

1,452

1,417

1,367

July 12

354

726

1,438

1,436

1,417

1,365

July 13

950

950

1,033

1,033

1,014

964

July 14

215

450

1,154

1,154

1,137

1,087

July 15 - 18

950

950

1,438

1,435

1,417

1,367

July 19

337

736

1,438

1,435

1,417

1,367

July 20

950

950

961

961

944

894

July 21

194

373

1,438

1,435

1,417

1,367

July 22

950

950

1,057

1,055

1,040

990

July 23+

950

950

1,438

1,435

1,417

1,367









NXUS Compressor Station Outages:

NXUS will be conducting outages at the following compressor stations.  Please refer to the operational capacity matrix above for capacity impacts during each of the following outages:

 

 

2022 Compressor Station and Unit Outages:

 

Begin

End

Station

Outage Type

June 14

June 24

Wadsworth

Full Station

 

 

NXUS DOT Pipeline Integrity Project

 

Tool Runs:

As part of NXUS's comprehensive integrity assessment of its pipeline system NXUS will be conducting cleaning and in-line inspection tool runs on various lines throughout its system.  As a result of these in-line inspections, certain locations could be identified for an investigation which could lead to possible reduction of capacity.  Should any of these investigations lead to a reduction of capacity, NXUS will post on the bulletin board as soon as it is known. 

 

NXUS utilizes specific ILI tools designed by vendors to inspect for a certain type of threat that may exist on the pipeline.  Depending on the type of the tool and in order to successful collect the data, the tool may need to be run a specific speed which determines the impact on pipeline capacity during the run.  Furthermore, each tool has a different size and length depending on the tool type and vendor.  Launcher and receivers, and other pipeline facilities may need to be modified in order to launch, receive and run the tool along the pipeline to ensure a successful run.  Occasionally, combination tools, which are tools utilized to investigate multiple threats simultaneously, do exist for various pipe sizes and vendors.  Since combinations do not exist for every pipe size or threat, there may be multiple tool runs needed for a particular segment which creates variability in the outage schedule timeframes.  The following list contains the more common tool types NXUS utilizes and associated threat that the tool generally inspects the pipeline for.  This is not an exhaustive list and there may be other exceptions for the types of threat each tool type looks for.

 

MFL-A

Internal/External Corrosion

Inertial Mapping Unit or IMU

Geohazard/Pipe Strain

Caliper

Dents/Obstructions

EMAT

Stress Corrosion Cracking

MFL-C

Selective Seam Weld Corrosion

MFL-HS

Hard Spots

 

Listed below are the pipeline segments scheduled for cleaning and/or in-line inspection this year which will have an impact on operational capacity.  Please refer to the operational capacity matrix for any mainline capacity impacts.  Inspections which have meter impacts and/or other operational impacts are denoted with a footnote reference and details of the impacts are in the details below.

 

 

Pipeline Section:

Cleaner Date:

Caliper Date:

ILI Date:

Results / Potential Repair Date:

Colerain to Kensington (1)

 7/14

7/21

7/21

TBD

Hanoverton to Wadsworth

7/13, 10/25

7/20

7/20

TBD

Wadsworth to Waterville

7/14, 10/26

7/22

7/22

TBD

Colerain to EOLN (2)

7/12

7/19

7/19

TBD

Waterville to EOLN

10/27

 

 

 

 

Tool Run Footnotes:

 

(1)         NEXUS has been informed by Texas Eastern (TE) of the following pipeline outage that will impact receipts into NEXUS:

Colerain to Kensington 30" Line 73
ILI Tool Run: July 21, 2022
Tool Run Results/ Potential Repairs: TBD, 2022

As part of TE's comprehensive integrity assessment of its pipeline system, TE will conduct an in-line inspection tool run on its Colerain Station to Kensington 30" Line 73.

During the tool run, south to north capacity through Colerain compressor station will be limited to approximately 550,000 Dth/d.

In addition, during the tool run which is anticipated to last 8-10 hours, the following meters will be limited to an aggregate quantity of approximately 250,000 Dth/d (this includes TE and NEXUS leased capacity).

74201 - ACCESS MIDSTREAM CLARKS MILL ROAD-JEFFERSON CO.,OH
74202 - ACCESS MIDSTREAM HIGHWAY 219 - JEFFERSON CO., OH

Depending on the results of the ILI Tool runs and if further detailed investigations or an isolation is required, the worst case scenario is as follows:

 Customers sourcing gas from meters South of Colerain Station, including TE's Mainline delivering to meters North of Colerain Station, including deliveries to NEXUS, will be reduced to 0 Dth/d. Depending on the level of nominated quantities, restrictions are possible for interruptible, secondary services and primary firm services.

 

(2)         NEXUS has been informed by Texas Eastern (TE) of the following pipeline outage that will impact receipts into NEXUS:

Colerain to EOLN 30" Line 73
ILI Tool Run: July 19, 2022
Tool Run Results/ Potential Repairs: TBD, 2022

 

During the tool run, which is anticipated to last 8-10 hours, south to north capacity through Colerain compressor station will be limited to approximately 550,000 Dth/d.

 

Depending on the results of the ILI Tool runs and if further detailed investigations or an isolation is required, the worst case scenario is as follows:

 Customers sourcing gas from meters South of Colerain Station, including TE's Mainline delivering to meters North of Colerain Station, including deliveries to NEXUS, will be reduced to 0 Dth/d. Depending on the level of nominated quantities, restrictions are possible for interruptible, secondary services and primary firm services.

 

 

Pipeline Outages:

Below is a list of potentially impactful mainline outages occurring on the NXUS system this year.  Capacity impacts associated with these outages are reflected in the capacity matrix above.

 

***N4219 (DTE) Ypsilanti: June 14 - June 27

 

Nexus has been informed by DTE of pipeline maintenance occurring on their Willow segment north of its interconnect with Nexus-Ypsilanti. Depending on the level of nominations through this segment DTE may have to restrict volumes which could include the Ypsilanti interconnect.

 

During the period of June 14 - June 22 the following meters may see volumes restricted depending on the level of nominations:

 

N4307 - (DTE) ANR - WILLOW RUN - POOL RECEIPT

N4038 - (DTE) ANR-  WILLOW RUN -  RECEIPT

N4438 - (DTE) ANR - WILLOW RUN -  DELIVERY

N4232 - (DTE) PEPL- SCOFIELD - DELIVERY

N4028 - (DTE) PEPL -MCON - RECEIPT

N4303 - (DTE) PEPL- MCON - POOL RECEIPT

 


*DTE-Willow Run Segment

6/18-6/27 Due to DTE maintenance, NEXUS capacity thru the Willow Run Segment on DTE Pipeline will be reduced from 1,151,000 Dth/d to approximately 864,000 Dth/d (capacity will vary based DTE's allocation of capacity to NEXUS). Potential impacted primary delivery points include N4237 (DTE) Vector Milford Junction-DEL, N4035 (DTE) Union St. Clair-Del, and N4ST1 (VEC) St. Clair (US) as well as any secondary point on DTE Pipeline or Vector Pipeline downstream of the Willow Run Segment on DTE Pipeline.

 

9/26-10/7 and 10/10-12/2 During these timeframes DTE will be performing maintenance, NEXUS capacity thru the Willow Run Segment on DTE Pipeline will be determined at a later date.  If restrictions are necessary, potential impacted primary delivery points include N4237 (DTE) Vector Milford Junction-DEL, N4035 (DTE) Union St. Clair-Del, and N4ST1 (VEC) St. Clair (US) as well as any secondary point on DTE Pipeline or Vector Pipeline downstream of the Willow Run Segment on DTE Pipeline.

 

 

***NEXUS has been informed by Vector Pipeline of the following outage which will impact receipts on NEXUS at Meter N4MJ1 - (VEC) VECTOR MILFORD JUNCTION RECEIPT:

 

Due to Vector Pipeline planned maintenance, Meter N4MJ1 - (VEC) VECTOR MILFORD JUNCTION RECEIPT will be unavailable for flow on Gas Day July 12, 2022. Due to this planned maintenance at Meter N4MJ1, NEXUS delivery capacity to Meter N4ST1 - (VEC) ST.CLAIR (US) will be reduced from 455,000 Dth/d to 325,000 Dth/d. 

 

Additionally during the outage, nominations to the following meters between Milford Junction and Belle River may potentially be restricted:

 

N4RO1 - (VEC) WASHINGTON 10

N4RM1 - (VEC) RAY

N4BW1 - (VEC) BLUEWATER

 

 

Please contact your Operations Account Representative if you have any questions.

 




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