Oil&Gas
Zinia Phase 2 Development Project
2019-04-03 16:22  点击:91

Zinia Phase 2 Development:

 

Total and Sonangol agreed on the contractual conditions for the development of Zinia Phase 2, enabling a commitment to the final investment decision. Located in Block 17 and operated by Total (40%), Zinia 2 will be connected to the Pazflor FPSO and will produce 40,000 barrels per day.


This project includes drilling 9 subsea wells and tieback to the Pazflor FPSO, flowlines and other subsea pipelines will be laid, and 5 new modules will be installed on the Pazflor FPSO for this addtional wells. Total plans to control the cost at about 1.2 billion USD.


Sources said that only TechnipFMC and Subsea 7 were left for the bid of Zinia-2 project after a long competion.


Total's Chairman and CEO, Patrick Pouyanne said:“As Angola’s main oil partner, we are pleased with the strong willingness expressed by the country’s new authorities to drive an investment dynamic in the oil and gas sector, essential to the country’s economy, after three years impacted by the sharp drop in prices. Today’s agreements demonstrate Total’s willingness to contribute to this dynamic by restarting exploration offshore in Angola, launching new projects such as Zinia 2 on Block 17, and extending our cooperation with Sonangol to new businesses in oil product distribution and renewable energy. In particular, Total is making all necessary efforts to ensure a start-up as soon as possible during summer 2018 for the Kaombo project, currently the most significant investment in the country.” 


Zinia field is part of Pazflor oil field, Block 17 in Angola. Zinia was discovered at Dec 2002. Production began at Aug 2011. Water depth of this field is 718m.

 

Total operates Block 17 with a 40% interest alongside Statoil (23.33%), Esso Exploration Angola Block 17 Ltd (20%) and BP Exploration Angola Ltd (16.67%). Sonangol is the concessionaire of the license. The four FPSO units operated by the Group are located on the major production areas of the block, Girassol, Dalia, Pazflor and CLOV. 

 

Backgroud: 

 

Angola's Block 17 has proven prolific for partners in the offshore license.  Located approximately 90 miles (150 kilometers) offshore Angola in ultra-deep waters, the Pazflor project incorporates four fields -- Perpetua, Zinia, Acacia and Hortensia -- spanning 148,263 acres (600 square kilometers) on the eastern edge of Block 17.

 

Total's Angolan subsidiary, Total E&P Angola, is the operator of Angolan Block 17 with a 40% interest. Partners in the license include Statoil with 23.33% interest, Esso Exploration Angola with 20% interest and BP Exploration Angola with 16.67% interest.

 

Information of Fields:

 

First of the Pazflor cluster to be discovered, and the 10th field discovered on Block 17, Perpetua is located about 124 miles (200 kilometers) northwest of Luanda in 2,608-foot-deep (795-meter-deep) water. The Perpetua-1 exploration well discovered the field in August 2000, showing a daily flow rate of 8,740 bopd of 20-degree API in production tests.

 

Discovered in December 2002, the Zinia field was the 13th field encountered on Block 17 and the second of the Pazflor project. Located 90 miles (150 kilometers) from the Angolan coast, Zinia is situated in a water depth of 2,356 feet (718 meters). Also on the eastern portion of the license, the Zinia-1 well tested a flow rate of 3,650 bopd.

 

The discovery of the next two fields made the Pazflor project a commercial viability. The Acacia discovery followed in the spring of 2003 in water measuring 3,379 feet (1,030 meters). The Acacia-1 discovery well tested a combined 13,712 bopd from two separate zones, including Oligocene. The last to be discovered of the four eastern Block 17 fields, Hortensia is located 6 miles (10 kilometers) north of the Acacia field in waters measuring 2,723 feet (830 meters) deep. Tested at 5,092 bopd, the Hortensia-1 well was also discovered in the spring of 2003.


Field Development:

 

Gathering oil from all four fields at water depths ranging from 2,000 feet (600 meters) to 4,000 feet (1,200 meters), the Pazflor integrated field development linked subsea wells through subsea production lines, injection lines and risers to an FPSO. 

 

Approved by authorities in late 2007, field development called for drilling to commence in 2009 and facility installations to commence in 2010. Pazflor production commenced Aug. 26, 2011, bringing production rates for Block 17 to 700,000 bopd.

 

With slots for 49 subsea wells, the FPSO boasts a daily processing capacity of 200,000 barrels of oil and 150 MMcf/d of gas and a storage capacity of 1.9 million barrels of oil. Additionally, the vessel will process two very different types of oil: Miocene, which is found at Perpetua, Hortensia and Zinia; and Oliocene, which is located at Acacia. The topside will accommodate an additional 21 wells and house a separation unit. Spread-moored in 2,500 feet (762 meters) of water, the FPSO will have a 20-year design life and be able to house up to 220 personnel.

 

The subsea development includes 25 production wells, 22 water injecting wells and two gas injecting wells, as well as the West Africa's first-ever subsea gas/liquid separation system. Targeting two different reservoirs, the field development will recover heavier oil from Miocene reservoirs at a water depth of 1,969 to 2,953 feet (600 to 900 meters) and a lighter oil from Oligocene reservoirs at a water depth of 3,281 to 3,937 feet (1,000 to 1,200 meters).

 

History:

 

2000: The Pazflor adventure begins with the discovery of the Perpetua field, the first of the four ones that make up Pazflor. This discovery is yet another exploration success for Total in Block 17.


2002-2003: discovery the three other fields, Hortensia, Zinia and Acacia.


December 2007: Total launches development of Pazflor.


2008: KBR Awarded Contract to Provide Engineering, Procurement and Design Interface Services for Pazflor FPSO Topsides


March 2009: first development wells drilled.


Summer 2010: installation of the subsea equipment begins. The process takes a year and at times requires up to 6 pipe-lay vessels and 40 support vessels.


January 18, 2011: the FPSO departs its South Korean shipyard for Angola, a journey of more than 20,000 kilometres.

2011 - The giant Pazflor development was inaugurated by Angola's Minister of Petroleum, Chairman and CEO of Sonangol and Chairman and CEO of Total,

 

 

Companies:

 

Pazflor partners tapped Daewood Shipbuilding to provide the engineering, procurement and fabrication for the FPSO moorings, hull and topsides; and Daewoo awarded a number of subcontracts on the massive project. KBR was chosen to provide topsides engineering, procurement and interface design for the Pazflor FPSO. Dresser-Rand was awarded the $44 million contract to provide the turbomachinery for the FPSO, including four gas compression packages.

 

Aker Solutions was awarded the contract from Daewoo for the design and supply of the on-vessel mooring system made of eccentric fairlead chain stoppers. BW won the $100 million contract to engineer, procure, construct and install the buoy turret loading system and associated mooring equipment.

 

In January 2008, FMC was awarded the $980 million contract to supply the subsea processing and production systems for Pazflor. The supply scope includes three gas-liquid separation systems, 49 subsea trees and wellhead systems, three four-slot production manifolds, production control and umbilical distribution systems, and gas export and flowline connection systems.

 

FMC Technologies subcontracted to Tracerco in August 2008, awarding the company the contract for the subsea separation boosting and injection systems. FMC also tapped Oceaneering to supply and install 7.3 miles (11,800 meters) of umbilicals to provide electrical power to the subsea pumps and separation systems. In October, FMC subcontracted to Grenland Group to deliver subsea structures, including 12 utility distribution modules and the materials for the three production manifolds and foundation structures.

 

Additionally, Pazflor partners awarded a Technip/Acergy consortium the $1.86 billion subsea development contract in January 2008. Under the agreement, for $1.16 billion, Technip will provide engineering, procurement, fabrication and installation of more than 50 miles (80 kilometers) of production and water injection rigid flowlines, conventional flexible risers and integration production bundle risers, as well as the engineering, procurement and construction of more than 37 miles (60 kilometers) of umbilicals. For $700 million, Acergy will engineer, procure, fabricate and install 34 miles (55 kilometers) of water and gas injection lines, gas export lines, and umbilicals, as well as more than 20 rigid jumpers. Acergy will also install the subsea manifolds, separation units and associated umbilicals, and the FPSO mooring lines.

 

In December 2007, while still under construction, Saipem's 12000 ultra-deepwater drillship was contracted for five years of drilling on Pazflor with an option for an additional two years.

 

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