Difference between revisions of "Ensign Gas Field"
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Abarrelfull (talk | contribs) (Created page with "Summary Information * Operator: Centrica * Country: UK * Location: Southern North Sea * Production start: 2012 * Partners: * Type: Gas * Estimated Reserves: * Production V...") |
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| − | Summary Information | + | === Summary Information === |
| − | * Operator: | + | * Operator: Spirit Energy |
* Country: UK | * Country: UK | ||
* Location: Southern North Sea | * Location: Southern North Sea | ||
| Line 9: | Line 9: | ||
* Production Volume: | * Production Volume: | ||
| − | + | === Description === | |
| + | * The field is no longer producing | ||
* The Ensign field is a gas field which straddles UKCS Blocks 48/14a and 48/15a. | * The Ensign field is a gas field which straddles UKCS Blocks 48/14a and 48/15a. | ||
* It lies approximately 80km from the English coastline and 80km from the UK/Dutch median line. | * It lies approximately 80km from the English coastline and 80km from the UK/Dutch median line. | ||
| Line 17: | Line 18: | ||
* Gas is then exported from [[Lincolnshire Offshore Gas Gathering System (Loggs) | LOGGS]] to the Theddlethorpe Gas terminal via an existing pipeline. | * Gas is then exported from [[Lincolnshire Offshore Gas Gathering System (Loggs) | LOGGS]] to the Theddlethorpe Gas terminal via an existing pipeline. | ||
| − | + | === Contractors === | |
| − | * | + | * '''Heerema:''' Construction of the 1,100 tonnes Ensign platform |
| − | * | + | * '''Seaway Heavy Lifting:''' Installation of Ensign Minimum Facility Platform |
| − | * | + | * '''Subsea 7:''' |
** Engineer, procure, install, tie-in and pre-commission 24km of 10" gas and 2" methanol pipelines - connecting the new un-manned Ensign satellite platform with the existing subsea pipelines at the Audrey ‘A’ platform. | ** Engineer, procure, install, tie-in and pre-commission 24km of 10" gas and 2" methanol pipelines - connecting the new un-manned Ensign satellite platform with the existing subsea pipelines at the Audrey ‘A’ platform. | ||
** In addition, Subsea 7 will engineer, procure, install, tie-in and pre-commission 2km of 10” gas pipeline and associated control umbilical connecting the Ensign platform to a new subsea well. | ** In addition, Subsea 7 will engineer, procure, install, tie-in and pre-commission 2km of 10” gas pipeline and associated control umbilical connecting the Ensign platform to a new subsea well. | ||
| − | * | + | * '''KWsubsea:''' 10" Pipeline with 2" piggyback ~ 22km long with 10" pipeline step-out well ~1.8km long |
| − | + | === History === | |
* 1998 - Centrica acquired 19% from PowerGen | * 1998 - Centrica acquired 19% from PowerGen | ||
* 2011 - Project development approved by DECC | * 2011 - Project development approved by DECC | ||
* 2012 - First gas produced | * 2012 - First gas produced | ||
| + | * 2021 - Approval granted for decommissioning | ||
| − | + | === Geology === | |
* The Ensign field sands have low permeability and well fracturing techniques are employed to improve recoverability. | * The Ensign field sands have low permeability and well fracturing techniques are employed to improve recoverability. | ||
| − | + | === Links === | |
# [http://www.centrica.com/managed_content/newsandviews/2010/pdf/20101018_EnsignFieldDevelopment.pdf Ensign Field Development Environmental Statement] | # [http://www.centrica.com/managed_content/newsandviews/2010/pdf/20101018_EnsignFieldDevelopment.pdf Ensign Field Development Environmental Statement] | ||
# [[UK Oil and Gas Fields by Approval Date]] | # [[UK Oil and Gas Fields by Approval Date]] | ||
| + | # [[UK Oil and Gas Field Approved Decommissioning Programmes]] | ||
# [[List Of Oil Production Platforms In The UK]] | # [[List Of Oil Production Platforms In The UK]] | ||
# [[Seaway Heavy Lifting Oil And Gas References]] | # [[Seaway Heavy Lifting Oil And Gas References]] | ||
| Line 41: | Line 44: | ||
# [http://killajoules.wikidot.com/archive:centrica-strikes-offshore-deal Centrica strikes offshore deal] | # [http://killajoules.wikidot.com/archive:centrica-strikes-offshore-deal Centrica strikes offshore deal] | ||
# [http://killajoules.wikidot.com/archive:subsea-7-s-a-awarded-60-million-contract-in-the-nort Subsea 7 S.A. awarded $60 million contract in the North Sea] | # [http://killajoules.wikidot.com/archive:subsea-7-s-a-awarded-60-million-contract-in-the-nort Subsea 7 S.A. awarded $60 million contract in the North Sea] | ||
| + | |||
| + | [[category:Field]] | ||
| + | [[category:UK]] | ||
| + | [[category:Spirit Energy]] | ||
| + | [[category:Decommissioned]] | ||
Latest revision as of 16:39, 5 June 2024
Summary Information
- Operator: Spirit Energy
- Country: UK
- Location: Southern North Sea
- Production start: 2012
- Partners:
- Type: Gas
- Estimated Reserves:
- Production Volume:
Description
- The field is no longer producing
- The Ensign field is a gas field which straddles UKCS Blocks 48/14a and 48/15a.
- It lies approximately 80km from the English coastline and 80km from the UK/Dutch median line.
- Centricadeveloped the Ensign field by the installation of a Not Permanently Attended Installation (“NPAI”) and drilling/completion of three wells. Two wells were existing appraisal wells and the third was a new subsea well, connected to the NPAI by a new 3km production pipeline.
- From the option selection process the only practical export option was to route the fluids from Ensign through a new 24km pipeline to Audrey A platform in Block 49/11.
- At the Audrey A platform the Ensign fluids will be commingled with production fluids from the Audrey fields, before being exported to the ConocoPhillips operated LOGGS platform via an existing 20” pipeline.
- Gas is then exported from LOGGS to the Theddlethorpe Gas terminal via an existing pipeline.
Contractors
- Heerema: Construction of the 1,100 tonnes Ensign platform
- Seaway Heavy Lifting: Installation of Ensign Minimum Facility Platform
- Subsea 7:
- Engineer, procure, install, tie-in and pre-commission 24km of 10" gas and 2" methanol pipelines - connecting the new un-manned Ensign satellite platform with the existing subsea pipelines at the Audrey ‘A’ platform.
- In addition, Subsea 7 will engineer, procure, install, tie-in and pre-commission 2km of 10” gas pipeline and associated control umbilical connecting the Ensign platform to a new subsea well.
- KWsubsea: 10" Pipeline with 2" piggyback ~ 22km long with 10" pipeline step-out well ~1.8km long
History
- 1998 - Centrica acquired 19% from PowerGen
- 2011 - Project development approved by DECC
- 2012 - First gas produced
- 2021 - Approval granted for decommissioning
Geology
- The Ensign field sands have low permeability and well fracturing techniques are employed to improve recoverability.
Links
- Ensign Field Development Environmental Statement
- UK Oil and Gas Fields by Approval Date
- UK Oil and Gas Field Approved Decommissioning Programmes
- List Of Oil Production Platforms In The UK
- Seaway Heavy Lifting Oil And Gas References
- KWsubsea Upheaval Buckling And Out Of Straightness Analysis
- Centrica strikes offshore deal
- Subsea 7 S.A. awarded $60 million contract in the North Sea
