Projects
– Project Reference –
The project is refer to Provision Of Decommisioning, Relocation, Modification and Commisioning (DRMC) of Wellhead Platform for Ophir Decommisioning and JItang Development.
Vestigo Petroleum Sdn. Bhd. (hereinafter referred to as the “Company”) is undertaking the development of the Jitang Field. The Jitang Field is located at approximately 96nm north east of the Kemaman Supply Base and about 50nm North West of the Ophir Field.
The hydrocarbon recovered from the Jitang Field will be stored in an FPSO via flexible flowlines. The Company intends to recover the oil reserve using an existing wellhead platform (WHP) which is currently located at the Ophir Field.
The WHP at the Ophir Field was installed in April 2017. The WHP consists of a topside, boat landing which are supported by a jacket. The jacket is anchored to the seabed by three suction piles and can therefore be easily relocated to the Jitang Field where similar water depths (about 71m) and seabed conditions (i.e. clay) are expected.
The relocation work involves the retrieval of the WHP as a single unit using a heavy lift vessel. RedTech Offshore Sdn Bhd (RTO) as the Main Contractor for the provision of all services. Our scope of work include provision of marine transport and installation engineering services.
Redtech Offshore Sdn Bhd has been awarded the Demobilization of FSU Nautica Muar from Bentara Field campaign. The scope of work consists of:
- Flexible pipeline & it’s ancillaries at Bentara – Flushing the entire length at Bentara, disconnection of the flexible flowline at FSU and wet store. Perform preservation scheme as per Flexible Riser’s manufacturer recommendation.
- Export Hose – Flush, disconnect and blank-off export hose from FSU and towing out from Bentara field to export hose’s Owner appointed location.
- FSU Mooring Chains at Bentara – Disconnect and buoying off 12 nos of Mooring Line.
- FSU Station Keeping on the duration of the ongoing mooring disconnection at Bentara.
- Perform towing operation of FSU from Bentara Field to Owner appointed location subject to approval Flag State and Class
- Drop anchor at anchorage and hand-over the FSU to Ship Owner.
Aquastruction Sdn Bhd has been awarded by Redtech Offshore Sdn Bhd as T&I Engineering arm in performing all the engineering works related to the demobilization of FSU Nautica Muar from Bentara Field. The analyses that has been performed such as:
- FSU Nautica Muar Flexible Riser Dsiconnection Analysis
- FSU Nautica Muar Export Hose Surface Tow Analysis
- FSU Nautica Muar Stability Check and Station Keeping Analysis
- FSU Nautica Muar Towing Analysis
- Transportation Analysis and Seafastening Report
The NBO H4 project covers the development section of the H4 reservoir. This “NBO-H4 Project Development” consist of provision of two new oil producer wells and four water injection wells at the BOC platform. The oil from the two new oil producer wells will be delivered to the existing FWS oil manifold at BOC platform. The water source for water injection wells is will be supplied from BOA platform. Injection water is delivered via bridge to BOD platform and then delivered via a new subsea pipeline from BOD to BOC.
The project scope will include brownfield works at existing facilities on BOC and BOD to accommodate new oil producer wells and water injection wells at BOC.Aquastruction’s tasks are to perform Flexible Flowline Installation Engineering and review Global Dynamic Analysis. The analysis and report include:
• Flowline Installation Analysis:- Flexible Flowline Installation & Tie-in Drawings
- Flexible Flowline Laying Analysis Report
- Flexible Flowline J-Tube Pull-In Analysis Report
- Transportation Analysis Report for DP2 Vessel
- Transportation Analysis and Seafastening Report for Material Barge
- Lifting
- Pipelaying
The PM 309 Gas Ledang Redev Segment 2 (Ledang S2) project is located offshore about 200km off coast of Terengganu, with the average water depth of 76m. Ledang S2 field is within PM309 PSC (expiry in Feb 2032) with 100% equity and operated by Petronas Carigali Sdn Bhd (PCSB).
The overall development comprises of Engineering, Procurement, Construction, Installation, HOOK-UP and COMMISSIONING for Ledang S2. The new FACILITIES inclusive as following:
i. One (1) Subsea Tree and Wellhead for Ledang S2ii. One (1) Flowline from Ledang S2 to LDP-A (approximately 2.3km)
iii. One (1) Umbilical from Ledang S2 to LDP- A (approximately 2.3km)
iv. Host Tie-In and Modification at LDP-A
Aquastruction’s scope of works are to perform Transportation & Installation Flexible Flowline Installation Engineering and review Global Dynamic Analysis. Scopes include:
Development of Installation Procedures for:
i. Lifting
ii.Pipelaying
Flowline Installation Analysis:
Flexible Flowline Installation & Tie-in Drawings
Flowline Dynamic Analysis;
Flexible Flowline Laying Analysis Report
Flexible Flowline J-Tube Pull-In Analysis Report
Transportation Analysis and Seafastening Report:
Transportation Analysis Report for DP2 Vessel
Transportation Analysis and Seafastening Report for Material Barge.
Installation Aids Design & Mooring Analysis
Destini Oil Services Sdn Bhd is the main contractor for the project on well abandonment and field decommissioning services on dried oilfields.
As an engineering consultant, we were required to do a mooring and transportation study for the following vessels at Kemaman anchorage: Accommodation Work Barge – Setia Station 2; Anchor Handling and Supply Tug 1 – Atlas Avior; and Anchor Handling and Supply Tug 2 – Setia Qaseh.
The scope of services for the mooring and transportation study include: Transportation & Sea Fastening Design Analysis; Mooring Analysis & Catenary Plot and Wire Clearance Check; Anchor Handling (Deployment and Retrieval Procedures); Gangway Installation & Removal Procedures; and Lifting Analysis (Capacity & Radius Check).
PETRONAS Carigali Sdn Bhd has awarded the project to PBJV Sdn Bhd to replace approximately 450m of the first section of the existing 6.9 km 10” pipeline system from Kepong A (Ke-A) platform to Tiong A (Ti-A) platform (PMLOPL-24)
The works involved by decommissioning, removing and salvaging the existing pipeline together with riser and few joints on seabed using the secondary pipe-lay barge. Then the new sectional 10-inch pipeline and riser were installed.
Our scope of works as engineering consultant include:
The scope for this project include of decommissioned and change-out of riser for six pipelines at Bekok-C platform. The decommissioned and change-out riser are:
Installation of pipeline protection frame. Supervise on the pipeline nitrogen purging activities for the six pipelines (decommissioning). Pipelaying for the 6-inch Tabu-A to Tabu-B pipeline.
The main scope of work is to perform engineering design and associated activities for one (1) of the pipeline (PL 076) intended to be replaced under the pipeline replacement campaign. The new replacement pipeline (PL 076) which is located between the Bokor Drilling Platform (BODP-C) and at Bokor Production Platform (BOP-A) was replaced using the normal lay barge method.
The new replacement subsea pipeline system is carbon steel material, sized to accommodate the intended flow rates and design requirements. The pipeline is located between the Bokor Drilling Platform (BODP-C) and at Bokor Production Platform (BOP-A) with an approximate length of 0.68 km.
The provision for the engineering services were:
Pipeline Engineering include Route Selection Report, Riser Design Basis, Hanger Flange Details Drawings
Mechanical Engineering include Engineering Detail Design Report, Alignment Sheet Drawings, MTO List
Corrosion Engineering include Corrosion Design Basis Memorandum, Corrosion Management Plan, Cathodic Protection System Analysis, Pipeline and Riser External Corrosion Coating System.
Puteri wellhead platform which is located approximately 320 kilometers offshore Kerteh, Terengganu is a 60 m water depth within block PM318. Puteri was developed with a small unmanned platform with minimum production equipment, one 13.5 km x 8- inch Full Well Stream (FWS) pipeline to the existing Bunga Kertas FPSO and one 13.5 km x 8-inch Gas Lift (GL) pipeline from the FPSO back to Puteri.
The Puteri pipelines were tie-in to the existing Penara to Bunga Kertas FPSO 12-inch FWS pipeline and 8-inch GL pipeline. The subsea tie-in consist of a pipeline end manifold (PLEM), which was designed to enable minimum interference of the Penara production from the incoming Puteri production.
It is required that a post-trenching method to be employed for this pipeline as the pipe-lay operation has been completed.
The detailed scope of work which represents the procedure adopted for the burial of the pipeline utilising a jet sled for trenching and a plow for backfilling comprises of the following:
The title of the project is Pipeline Installation and Shore Approach Work for PL358 WLP-A to MCOT and it was performed in 2009.
The project which was awarded by Alam Maritim Sdn Bhd to carry out installation engineering design for offshore pipeline installation and shore approach for replacing PL339 from (West Lutong Production Platform-A (WLP-A) to Miri Crude Oil Terminal (MCOT) with a new pipeline of the same size of PL 358 (18”OC x 17.5mm WT).
The total length of pipeline is 10.722 km (10.325 km of offshore and 0.397 km of onshore portion).
The engineering activities for the project include:
AQUASTRUCTION was commissioned by OPDEX to undertake 3 years research project from Petronas involving feasibility of utilizing non-metallic pipelines (NMP) as a replacement for standard subsea carbon steel pipeline. The research was executed in four phases as follows.
Phase 1 – Complete Laboratory test involving material, long term fatigue test on small scale model and derivation of empirical formulae and finite element models to be applied for future design engineering.
Phase 2 – Laboratory testing of Large Scale Model and calibration of empirical formulae and finite element model derived from phase 1
Phase 3 – Full scale mock-up installation and verification or calibration of installation Finite Element Models.
Phase 4 – Detailed engineering of two pipelines, design of associated Risers and New Riser Guards to be installed as pilot projects.
Detailed engineering scope includes Structural Verification Analysis of the four platforms due to additional loads from NMP Risers and New Riser Guard.
The objective of the PROJECT is to mitigate the problem of corrosion in normal carbon steel pipelines. The overall study was done on PL234/PL239 and PL223 SKO pipelines in 3 phases:
i) Concept Engineering;
ii) Qualification Testing; and
iii) Pilot Project Detail Engineering Design Services
Scope of works include:
• Basis of design;• Pipeline Additional Weight Feasibility Study;
• Impact and Clashing Study
• Local Buckling Analysis
• Compressive Buckling Analysis
• On-bottom Stability Design
• NMP Free Span Analysis