Marginal Field Development

Marginal Field Development The Sea Swift Conductor Supported Platform (CSP)

Ken Crawford

Our Company

Our Services

Offshore Structures for Marginal Field Development utilising a MOPU development solution

Agenda

Exceptional Innovation in Offshore Engineering Solutions

Concept, design, procurement and installation

Offshore systems, products and technical support services

Offshore Structures

Riser Systems

Hydraulic Systems

Service & Rental

Our Engineering Solutions Delivering Your Vision

Global Track Record and Experience

Operational experience and on-ground representation in Asia Pacific, Africa, Europe, Middle East, North Sea and USA

Worked completed for over 110 customers in 32 countries

Growing Team

Degree Qualified Engineers to PHD level

Affiliation with Cambridge University

Experienced hands-on Offshore Field Engineers

Offer practical solutions to offshore challenges

Our Company Structured for Your Success

Our Commitment To Your Success

Innovative, Robust and Reliable Solutions

to Drilling and Platform Requirements

Innovation: based on hands on experience

Safety: first before all else

Service & Quality: responsive and tailored to customer needs

Cost Control: delivering reduced platform costs. Lower installation costs, minimum drilling downtime, simplified critical path and reduced intervention costs

Our Company Structured for your Success

Project Management

Analysis & Engineering

Procurement Fabrication & Testing

Offshore Installation

& Operations

Offshore Structures Sea Swift Conductor Supported

Platform

Subsea Drilling Templates

Subsea Protective Structures

Wellhead Tower

Tension Decks

Bespoke Offshore Structures

Our Innovation Bringing Your Specification to Life

Design, Procure, Supply, Install

Riser Systems Riser Analysis

Subsea Riser Systems

Surface Riser Systems

Pipeline Riser

VIV Suppression Systems

Connectors

Tie-back Engineering

Centralisers


Hydraulic Systems Hydraulic Power Unit

Wellhead Control Panel

Spare Parts

Image Based Information System

System Appraisal / Troubleshooting

Fluid Analysis


Service & Rental SUREgrip Tension Ring

PROten Riser Tensioning System

Rig Floor Tensioning System

Conductor / Riser Tensioning Unit

Cement Top Up System

Aquascope Subsea Camera

Trash Caps

Conductor Tie-back Rental Tools


Offshore Structures Sea Swift Conductor Supported Platform

Offshore Structures MOPU Wellbay Modules

Bespoke wellbay modules designed to be used in conjunction with a MOPU

Quick and low cost solution for rapid development of normally uneconomical fields

Attaching the wellbay module to the hull of the FPSO removes the need for a NUI or standard jacket

Systems are designed to be either fitted to new build rigs or retrofit to existing rigs

Allows multiple wells to be tied back to an FPSO

Offshore Structures Tension Decks

Bespoke tension decks designed for explorations and development drilling

Systems are designed to be either fitted to new build rigs or retrofit to existing rigs

Allows multiple wells to be drilled at one single location

Can provide up to 1500 Tones of tension across 6 individual well slots

Typically NUI platforms using well conductors as structural members.

Designed to current API and Verification body rules.

Designed for installation by standard cantilever Jack-up and supply vessel. No need specialist vessel assistance.

Conductors can be drilled and cemented or piled.

Three main applications

Normally Unmanned Installation

Pre drill wellhead platform

Slot addition wellhead platform

Offshore Structures Sea Swift Conductor Supported Platforms

Sea Swift CSP Component Montage

Sea Swift CSP Configurable Topsides

Typically 36 or 30 diameter Grade X52.

Premium fatigue grade connectors (e.g. National Oilwell Varco XLC-S connectors) with excellent strength and fatigue performance.

Pile or drill conductors.

Four conductors will form the main structural support to the platform and will be effectively fixed within the subsea structures via use of grout.

Corrosion protection will be provided.

Sea Swift CSP Conductors

Example of 4 Well Sea Swift

Overall dimensions of approximately: H: 13.6m W: 6.9m L: 8.1m

4 wells in a 2 x 2 array @ 6m x 4.8m spacing plus a central running slot which can also be used as a well slot (future requirement).

Approximate weight 160 Tonnes.

4 x 42 O/D leg sleeves, and an arrangement of smaller tubular sections interconnecting bracing members.

The subsea structure will be located at or just above the seabed and initially supported on a central support pile. This can also accommodate an additional well if required in the future.

All required cement grouting equipment, installation cameras, subsea gyrocompass location fittings and guides for the export riser and subsea power umbilical cable.

Conductors will be grouted within the sleeves.

Sea Swift CSP Subsea Structures

Offers support/protection to the export riser and umbilical cable.

Approximate weight will be 2.5 Tonnes

Locates over two well conductors.

Installed either following or during the installation of the 4 well conductors and prior to installation of the topsides module.

Incorporates guide modules for the export riser and the subsea power umbilical cable.

Will be installable using AEL patented technology.

Sea Swift CSP Riser Guide

Sea Swift CSP Typical Topsides Facilities Equipment

Production Test & Manifolds, piping and valves

Wellhead control panel and Hydraulic Power Unit (HPU)

Platform control interface

Pig launcher

Flare / Emergency Vent Boom

Emergency personnel shelter (located within designated Safe Area)

Electrical Equipment Room (located within designated Safe Area)

Chemical injection package

Platform Control System

Sump tank and pump

Vent scrubber and pump

Service water pump

Diesel driven crane and diesel tank

Multiphase flow meter

ESP Control Transformers

CCTV

Emergency Lighting

Life escape devices e.g. life buoys

Platform Safety Equipment

Sea Swift CSP Delivery of the Complete Solution

Project Management

Analysis & Engineering

Procurement Fabrication & Testing

Offshore Installation

& Operations

Dedicated Project Team

Structural & Fatigue Analysis

Process simulations

Topsides Facilities Equipment Analysis

Mechanical

- Instrument & Control

- Electrical & Power

- Piping

- Telecommunication

- Technical Safety

- Detailed Design

Production of BOD

Development of design specifications & key documents

Sea Swift CSP Project Management

FEED Study / Review & verification of FEED design documents

Structural & Fatigue Analysis

Process simulations

Topsides Facilities Equipment Analysis

Mechanical

- Instrument & Control

- Electrical & Power

- Piping

- Telecommunication

- Technical Safety

- Detailed Design

Production of BOD

Development of design specifications & key documents

Sea Swift CSP Analysis & Engineering

Sea Swift CSP Procurement

Sub contractor evaluation and selection:

Sub contractor audits and final selection of sub contractors driving down costs where possible

Procurement of long lead items

Conductor joints and connectors

Structural sections and subsea structure cans

Pig Launcher

Topside facilities equipment & Piping

WHCP / HPU

Sea Swift CSP Fabrication

Sub contractor evaluation and selection:

Sub contractor audits and final selection of sub contractors driving down costs where possible

Procurement of long lead items

Conductor joints and connectors

Structural sections such as the subsea structure cans

Topside facilities equipment & Piping

Manufacturing phase:

Topsides module fabrication and painting

Subsea structure fabrication and painting

Platform ancillaries fabrication and painting

Platform and riser Installation equipment fabrication

QA, QC

Installation of facilities equipment

Riser pre-fabrication

Platform FAT

Full Aquaterra management team on site to manage fabrication

Delivery of complete solution

Sea Swift CSP Example Schedule

Sea Swift CSP

26m Water Depth

Four 30 Conductors run to 50m below mudline

Provision for 5 wells (3 initial + 2 optional)

25 year design life. Minimal processing facilities - will incorporate manifolds, multi-phase analyser/meter, utilities and a pig launcher.

6m x 4.8m well spacing with additional centre running / support slot

One subsea structure approximately

H: 13.6m W: 6.9m L: 8.1m

Weight: Approximately 160T

Topside 3 deck levels approximately

H: 9.5m W: 12m L: 15m

Weight (including process equipment): Approx. 260T (based on current understanding of requirements)

Crude transported to shore via a 15km long, 8 pipeline to a 12,000BPD capacity onshore facility.

Power will be supplied via one combined subsea power and fibre optic data communication cable.

Umbilical and Riser guides.

Access via boat landing and ladder

Sea Swift CSP Seme Development - General Platform Configuration

Sea Swift CSP

Sea Swift CSP Installation

1. Pick up and Hang off Subsea Structure

2. Drill Centre Slot Conductor

3. Pickup & Install Lower Subsea Structure

4. Pickup and Install Upper Subsea Structure

5. Drill and Run Four Environmental Conductors

Attach riser guides and boat access ladder as conductor ran

Cut conductors to height as each is drilled

6. Space Out & Grout Lower Subsea Structure to Depth

7. Space Out & Grout Upper Subsea Structure to Depth

8. Pick up and Hang-off Topside Structure

9. Transfer and Set Down Topside Structure

10. Complete Hook Up & Commissioning

Sea Swift CSP Gallery


1. Drill Centre Hole. Pick up and Install Lower Subsea Structures


2. Pick up and Install Upper Subsea Structures


3. Pick up Topside and Boat Landing Structures


4. Commence Drilling Operations


5. Prepare Cement Hoses


6. Spaceout and Secure Subsea Structures


7. Position & Install Topsides


8. Complete Hook-up and Commissioning

Documents

Marginal Field Development