Oil field development
Offshore Sarawak, Malaysia
Anjung Kecil oil field is located in Block SK315 of the South China Sea, approximately 200km off the coast of Bintulu town in Sarawak, Malaysia.
The field is being operated by Malaysia-based company Vestigo Petroleum, a subsidiary of PETRONAS Carigali.
Anjung Kecil oil field development
The Anjung Kecil oil field development includes Anjung Kecil well-head platform and Marginal Marine Production Unit (MaMPU)-1 floating production storage and offloading (FPSO) vessel.
Vestigo procured a low pressure-condensate recovery system (LP-CRS) unit for the field in September 2016.
The company performed a geophysical survey at the oil field using research and seismic support vessel Java Insignia in March 2019.
The Anjung Kecil well-head drilling operation commenced using tender-assisted drilling rig Mist in June 2019. The rig reached the oil field from Singapore’s Keppel Feels Pier. The vessels involved in the drilling work were 246ft-long Mist, 70m-long Grade One Manjung 8, and 75.27m-long Ena Samurai.
A 1.26km-long dynamic subsea power cable will be laid between the FPSO and the well-head platform as part of the field modification plan.
MaMPU-1 FPSO details
MaMPU-1 commenced its voyage from the Malaysia Marine & Heavy Engineering (MMHE) East Yard, Pasir Gudang, to the Anjung Kecil oil field in September 2016. The vessel was ready to start-up in October 2016.
The MaMPU-1 FPSO is a converted oil tanker with a storage capacity of 318,000 barrels. It has a production capacity of 15,000 barrels of oil per day and a gas handling capacity of 25 million metric standard cubic feet per day (mmscfd).
The FPSO utilises Sep-iSYS™ crude stabilisation unit, a compact low-pressure system to stabilise the crude that is received from the reservoir for safe storage and transport. A first-of-its-kind LP-CRS unit was installed on the FPSO to enhance oil production through the recovery of hydrocarbons from unwanted flaring gas.
CRS, along with Sep-iSYSTM system, is expected to add approximately 50 barrels of oil per one million square cubic feet of flared gas to the production. The technology will also reduce carbon emissions by 25% to 30% on daily flaring rates.
The FPSO is fitted with Wireless Ethernet Radio (WER) system, a telecommunication system to establish a link between the FPSO and well-head platform.
A new electrical submersible pump (ESP) system power generation module was installed as part of the FPSO facility upgrade in March 2020.
Anjung Kecil well-head platform details
The Anjung Kecil well-head platform is a Tarpon platform, a minimum facility and unmanned platform typically installed in shallow water.
The modification work will include the development of a chute support structure and a shelter structure at the Tarpon platform.
MISC Berhad provided the FPSO for the project. MISC Offshore Floating Terminals Dua (MOFT2), a subsidiary of MISC Berhad, contracted Acteon’s subsidiary InterMoor for MAMPU-1 upgrade and modification at Anjung Kecil well-head platform offshore installation in August 2019.
The project includes management, engineering and offshore tasks related to the heavy lift of the electrostatic precipitator (ESP) power generation module on the FPSO facility.
InterMoor contracted MR Innovative Offshore Solutions for high-voltage (HV) subsea power cable termination, jointing, testing, and commissioning works. Acteon’s subsidiaries UTEC and Aquatic were involved in survey and flexible laying equipment tasks respectively.
The FPSO conversion was executed by Malaysia Marine and Heavy Engineering Holdings Berhad (MHB).
Reach Integrated provided telecommunication systems for the project, while NGLTech supplied the LP-CRS unit for the field. Other contractors include Integrated Process Solutions and MTC Group.