Abarrelfull at 16:39, 5 June 2024

2024-06-05T16:39:21Z

Abarrelfull: Created page with "Summary Information * Operator: Centrica * Country: UK * Location: Southern North Sea * Production start: 2012 * Partners: * Type: Gas * Estimated Reserves: * Production V..."

2023-08-24T08:14:25Z

Created page with "Summary Information * Operator: Centrica * Country: UK * Location: Southern North Sea * Production start: 2012 * Partners: * Type: Gas * Estimated Reserves: * Production V..."

New page

Summary Information
* Operator: Centrica
* Country: UK
* Location: Southern North Sea
* Production start: 2012
* Partners:
* Type: Gas
* Estimated Reserves:
* Production Volume:

+++ Description
* 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 [[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.
** 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

+++ Geology
* 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]
# [[UK Oil and Gas Fields by Approval Date]]
# [[List Of Oil Production Platforms In The UK]]
# [[Seaway Heavy Lifting Oil And Gas References]]
# [[KWsubsea Upheaval Buckling And Out Of Straightness Analysis]]
# [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]

@@ Line 1: / Line 1: @@
-Summary Information
+=== Summary Information ===
-* Operator: Centrica
+* Operator: Spirit Energy
 * Country: UK
 * Location: Southern North Sea
@@ Line 9: / Line 9: @@
 * Production Volume:
-+++ Description
+=== Description ===
 * 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.
@@ 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.
-+++ Contractors
+=== Contractors ===
-* **Heerema:** Construction of the 1,100 tonnes Ensign platform
+* '''Heerema:''' Construction of the 1,100 tonnes Ensign platform
-* **Seaway Heavy Lifting:** Installation of Ensign Minimum Facility Platform
+* '''Seaway Heavy Lifting:''' Installation of Ensign Minimum Facility Platform
-* **Subsea 7:**
+* '''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
+* '''KWsubsea:''' 10" Pipeline with 2" piggyback ~ 22km long with 10" pipeline step-out well ~1.8km long
-+++ History
+=== History ===
 * 1998 - Centrica acquired 19% from PowerGen
 * 2011 - Project development approved by DECC
 * 2012 - First gas produced
-+++ Geology
+=== Geology ===
 * The Ensign field sands have low permeability and well fracturing techniques are employed to improve recoverability.
-+++ Links
+=== Links ===
 # [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]]
 # [[List Of Oil Production Platforms In The UK]]
 # [[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:subsea-7-s-a-awarded-60-million-contract-in-the-nort Subsea 7 S.A. awarded $60 million contract in the North Sea]

Ensign Gas Field - Revision history

Abarrelfull at 16:39, 5 June 2024

Abarrelfull: Created page with "Summary Information * Operator: Centrica * Country: UK * Location: Southern North Sea * Production start: 2012 * Partners: * Type: Gas * Estimated Reserves: * Production V..."