A unique aspect of the Dolphin Gas Project is that Dolphin Energy is involved in the three key stages of the production chain - upstream, midstream and downstream.
Dolphin Energy’s Upstream activities are focused mainly at Ras Laffan Industrial City. Here, the company’s gas processing and compression plant receives gas from Qatar’s North Field and strips valuable by-products before the lean gas is transported to Abu Dhabi, UAE.
Dolphin Energy produces substantial quantities of raw natural gas from the 27 deep wells that we have drilled in Qatar’s offshore North Field.
Two 36-inch sealines connect Dolphin Energy's two production platforms to the gas processing plant at Ras Laffan Industrial City. The sealines rest in relatively shallow water (30-40 meters) and transport up to 2.6 billion standard cubic feet per day of raw gas to Ras Laffan.
Twin subsea umbilical lines are used for telecoms, chemicals and data transmission between the platforms and the plant. This helps to facilitate platform control and operations from the onshore central control room.
GAS PROCESSING PLANT
The gas processing and compression plant at Qatar's Ras Laffan Industrial City, the largest single build plant in the world, is central to Dolphin Energy's activities.
Condensate Storage & Export
Dolphin Energy constructed six barrel storage tanks for condensate at Ras Laffan. The combined storage capacity totals 3.32 million barrels.
Liquid Storage Export
Dolphin Energy's propane and butane production is held in shared storage tanks which are jointly used by several LPG producing entities.
Sulfur Storage & Export
Dolphin Energy uses Common Sulfur Facilities (CSF) that are shared among the operating companies in Ras Laffan. The CSF have an operating capacity of 6,800 m3/day.
Subsea Export Pipeline
Dolphin Energy’s subsea export pipeline connects the company’s Ras Laffan gas processing and compression plant with its Receiving Facilities at Taweelah, Abu Dhabi. This 48-inch, 364-kilometer pipeline is the largest and longest gas pipeline in the Middle East.
The export pipeline transports 2 billion standard cubic feet per day (scf/day) of refined methane gas from Qatar. Its design capacity is 3.2 billion scf/day. Usage of the additional 1.2 billion scf/day capacity is subject to a future agreement between Dolphin Energy and the Qatari authorities.
Dolphin Energy’s downstream activities focus on receiving, metering and distributing gas to customers in the UAE and Oman. The UAE Gas Network – comprising the Taweelah Receiving Facilities (TRF), the Eastern Gas Distribution System (EGDS), the Al Ain-Fujairah Pipeline and the Taweelah-Fujairah Pipeline ensure delivery in a safe and reliable manner.
Taweelah Receiving Facilities
Dolphin Energy's gas arrives at the heart of the company’s UAE operations, the Taweelah Receiving Facilities in Abu Dhabi, UAE at a maximum rate of 2 billion standard cubic feet per day.
From Taweelah, the gas is distributed by pipeline to our customers across the UAE and Oman.
Eastern Gas Distribution System
The Eastern Gas Distribution System (EGDS) is used to transport natural gas across the UAE and to Oman, using a connection with a pipeline on the Omani border.
Taweelah-Fujairah Pipeline (TFP)
The TFP is a 48-inch, 244-km gas pipeline that takes natural gas from Taweelah across the country to ADWEC’s power and desalination plants in Fujairah.
Al Ain-Fujairah Pipeline (AFP)
Dolphin Energy entered the business of gas supply in January 2004, when the company commissioned the natural gas pipeline that connects Al Ain with the Emirate of Fujairah.
Advanced Subsea Intervention & Support Technology (ASSIST)
Dolphin Energy’s Advanced Subsea Intervention & Support Technology (ASSIST) pipeline repair system can now be deployed in the event of a rupture to the 36” sealines or the 48” export pipeline. The system is designed to minimize disruption from any accidental damage and restore gas supply to the Emirates in the quickest possible manner.
The repair strategy includes equipment, systems and processes to decommission the pipeline, isolation of the pipeline to create a safe working environment, and repair and recommission the pipeline to resume gas supply services. This includes large bespoke subsea repair equipment to handle the pipeline on the seabed and carry out several repair welds in a hyperbaric condition, subsea.
The system also includes a unique diverless subsea launcher and receiver which can be installed on the seabed without the use of any foundations. The use of large valves on the launcher and receiver allows inline tools to be received and launched subsea without re-flooding the pipeline.
It can also be utilized on other pipelines ranging from 10-inches to 48-inches. Furthermore, the subsea equipment can be used for a wide range of works such as pipeline repair, tie-ins and tie-backs, hot tap and major subsea inspections such as concrete coating removal. Most equipment is designed to work remotely without the use of divers which is safe and cost efficient.
Dolphin Energy has entered into a strategic agreement with KIZAD Industrial Zone and Khalifa Port and constructed a custom made Marine Base at KIZAD’s facilities that will serve as a hub for the subsea repair tools and offshore mobilization.