Hasbah Gas Field Expansion
The Hasbah gas field, situated in the Arabian Gulf at depths of up to 65 meters, is located approximately 150 km northeast of Jubail, Saudi Arabia. Owned and operated by Saudi Aramco, this offshore gas field is currently undergoing a significant expansion known as the Hasbah Offshore Gas Facilities Increment II. This project aims to boost production by up to 2.5 billion standard cubic feet per day (scfd) of non-associated gas.
Scheduled for completion by October 2019, the expansion will help Saudi Aramco meet the growing domestic energy demands of Saudi Arabia.
Expansion Project Details
The Hasbah gas field expansion includes:
1. Drilling four new production wells
2. Installing six wellhead platforms and six topsides, each weighing 1,900 tons, along with two jackets, each weighing 1,900 tons
3. Adding two tie-in float-over platforms, each weighing 6,700 tons
4. Additionally, the project involves the installation of:
5. Offshore pipelines, including a 36-inch diameter pipeline with a 120 km-long carbon steel section and a 1.9 km-long corrosion-resistant alloy (CRA) section
6. Another 36-inch diameter pipeline with a 126 km-long carbon steel section and a 2.8 km-long CRA section
These pipelines will transport gas onshore to the Fadhili gas plant for processing. Moreover, three 110 km-long subsea cables will be installed for power and communication with the onshore facilities.
The subsea umbilicals, risers, and flowlines (SURF) for the project include:
1. One 122.2 km-long, 8-inch diameter carbon steel pipeline
2. One 4.2 km-long, 6-inch diameter carbon steel pipeline
3. Six 15.8 km-long, 16-inch CRA pipelines
4. Six integrated service umbilical’s totaling 20 km in length
Contractors Involved
Saudi Aramco awarded the engineering, procurement, installation, and commissioning (EPCI) contract to a consortium of Larsen & Toubro Hydrocarbon Engineering (LTHE) and Subsea 7, under a long-term agreement worth over $1.6 billion. This consortium will handle the EPCI for platforms, offshore pipelines, cables, and umbilicals.
1. Engineering: Platforms engineered at LTHE’s facility in Bangalore, India
2. Fabrication: Platforms fabricated in Sohar, Oman
3. Installation and Commissioning: Jointly performed offshore by Subsea 7 and LTHE, utilizing vessels such as the Seven Champion, Lewek Champion, and Maridive Constructor
Additional contracts include:
1. McDermott: EPCI contract for a wellhead production deck module, a flowline, and a subsea umbilical cable
2. Functional Safety Engineering Services (FSES): Conducting safety studies for the offshore facilities
3. ZTT Group: Supplying subsea cables
4. BEL Valves, Glacier Energy Services, and TECNOVA Group: Providing various specialized equipment and services
Hasbah Gas Field Development Background
Discovered in 2008, the Hasbah gas field was developed alongside the Arabiyah gas field under the Al Wasit Gas Programme. The field, equipped with seven production wells designed to withstand pressures of up to 10,000 psi, began production in March 2016. It has a production capacity of 350 million standard cubic feet per day (Mscfd), with gas transported via a 36-inch diameter pipeline to the Wasit gas plant.
