Expro Excellence
Subsea
Bespoke subsea system for BP’s Quad 204 development
Objectives
  • To deliver a suitable landing string for BP's Quad 204 development in the North Sea
  • This was a technically challenging scope of work due to the rig BOP configuration/orientation as well unique completion/installation methods and bespoke SPS interface- this was to suit BP's rig of convenience which was a new semi-subersible was being used that had been optimised for drilling operations and harsh environments
  • A dual bore vertical xmas tree (VXT) solution was selected by BP
Expro Excellence
  • Expro's long -standing relationship and track record using similar technology, allowed the Subsea team to use previous experience and lessons learnt to ensure complete compliance with the customer's expectations for the project
  • Engineering work was undertaken to provide a landing string that fitted the BOP without compromising our customer's specific project requirements, nor reducing the landing string functionality
  • Re-engineering work resulted in the creation of a combined Integral Slick Joint (ISJ) and Tubing Hanger Running Tool Adapter (THRTA), reducing the overall landing string assembly length so to accommodate the rig BOP dimensions and configuration
  • Production and annulus access requirements, along with full helix orientation, BOP and SPS interface challenges highlighted the unique features within Expro's bespoke landing string
  • Engineering analysis for FMECAs, stress analysis and multiple GRAs to account for various scenarios were undertaken
Value to client
  • Expro's modular/flexible subsea system allowed use of a rig of convenience
  • Cost efficiencies due to a reduction in equipment complexity:
  • Monobore landing String
  • Integral Slick Joint
  • No requirement for dual bore riser due to Expro's technical solution, single completion string deployment, full well control inclusive with THOJ/orientation helix arrangement
  • Accelerated timeline achieved within nine months, in line with rig delivery
  • Expro added value with a dual bore VXT configuration that allowed:
  • Orientation helix of BOP alignment included in the system (full well control and disconnect features were not compromised)
  • Deployment with monobore tubing, eliminating the need for a dual bore riser
  • Primary barriers allowing well flow clean-ups prior to the installation of the dual bore xmas tree
  • Provision of dual bore access for manuipulation of the annulus and mechancial access for intervention
Contact

Bespoke subsea system for BP’s Quad 204 development

In Brief
Bespoke subsea system for BP's Quad 204 development, increasing features despite decreasing size
Product Line
Subsea
Region
Europe CIS
Objectives
  • To deliver a suitable landing string for BP's Quad 204 development in the North Sea
  • This was a technically challenging scope of work due to the rig BOP configuration/orientation as well unique completion/installation methods and bespoke SPS interface- this was to suit BP's rig of convenience which was a new semi-subersible was being used that had been optimised for drilling operations and harsh environments
  • A dual bore vertical xmas tree (VXT) solution was selected by BP
Expro Excellence
  • Expro's long -standing relationship and track record using similar technology, allowed the Subsea team to use previous experience and lessons learnt to ensure complete compliance with the customer's expectations for the project
  • Engineering work was undertaken to provide a landing string that fitted the BOP without compromising our customer's specific project requirements, nor reducing the landing string functionality
  • Re-engineering work resulted in the creation of a combined Integral Slick Joint (ISJ) and Tubing Hanger Running Tool Adapter (THRTA), reducing the overall landing string assembly length so to accommodate the rig BOP dimensions and configuration
  • Production and annulus access requirements, along with full helix orientation, BOP and SPS interface challenges highlighted the unique features within Expro's bespoke landing string
  • Engineering analysis for FMECAs, stress analysis and multiple GRAs to account for various scenarios were undertaken
Value to client
  • Expro's modular/flexible subsea system allowed use of a rig of convenience
  • Cost efficiencies due to a reduction in equipment complexity:
  • Monobore landing String
  • Integral Slick Joint
  • No requirement for dual bore riser due to Expro's technical solution, single completion string deployment, full well control inclusive with THOJ/orientation helix arrangement
  • Accelerated timeline achieved within nine months, in line with rig delivery
  • Expro added value with a dual bore VXT configuration that allowed:
  • Orientation helix of BOP alignment included in the system (full well control and disconnect features were not compromised)
  • Deployment with monobore tubing, eliminating the need for a dual bore riser
  • Primary barriers allowing well flow clean-ups prior to the installation of the dual bore xmas tree
  • Provision of dual bore access for manuipulation of the annulus and mechancial access for intervention
Contact

For further information, please contact:

subsea.enquiries@exprogroup.com