From Design to Installation of the 2nd Generation of Integrated Production Bundle Riser (IPB)

Decoret, Laurent; Lecroq, Gerald

doi:10.1115/omae2012-84102

Volume 3: Pipeline and Riser Technology 2012

DOI: 10.1115/omae2012-84102

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From Design to Installation of the 2nd Generation of Integrated Production Bundle Riser (IPB)

Laurent Decoret

Gerald Lecroq

Abstract: As part of the TOTAL E&P Angola (TEPA) PAZFLOR development, two 10” Integrated Production Bundle (IPB) flexible risers have been installed to connect the Pipe-In-Pipe Oligocene loop to the FPSO. While IPB risers have first been implemented on the nearby DALIA development, the PAZFLOR IPB had to accommodate much higher design and operating temperatures. From the on-set of the project, focus was put on improving the design of this second generation of IPB and ensuring that all the lessons lear… Show more

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From Design, Installation and Commissioning of an Electrically Trace Heated Integrated Production Bundle

Quenot¹,

Carvalho²,

Hanonge³

et al. 2015

Day 1 Tue, October 27, 2015

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The Papa Terra oil field is located on the BC-20 Block in the Campos Basin - Brazil (110 kilometers away from Rio de Janeiro state coast) in a water depth of 1,200 meters. The field is operated by Petrobras having Chevron as non-operator partner. Papa Terra has a crude oil with an API index between 14 and 17 degrees. The field is among one of the most complex subsea developments ever executed in Brazil with its first oil performed in 2013 and the production subsea facilities installation completed in 2014. The proposed design for the subsea production system was the use of an Electrically Trace Heated Integrated Production Bundle (ETH-IPB), the 3rd generation of this field proven technology, which was successfully designed, manufactured and installed by Technip on previous West African projects. A total of 27 km of ETH-IPB riser and flowline as well as its own electrical and monitoring module have been designed, manufactured, installed and successfully commissioned for the Papa Terra project. The core of the ETH-IPB is a 6" ID flexible pipe dedicated to production fluid. Around the core, the following components are distributed into a bundle layer:Heat tracing cables designed to provide active heating of the production fluid during warm up or after a shut-down.A Distributed Temperature Sensor (DTS) fiber optic system, deployed offshore into a stainless steel tube loop in order to provide temperature monitoring along the length of the riser and flowline system.Spacers, designed to protect the electrical cables and fiber optic tubes from mechanical loadings during installation and manufacturing. The main aim of this paper is to describe the design of this production system, that was used for the first time in Brazil and which present a lot of innovations in several domains, due to overall length, thermal requirements, heating control and riser to flowline electrical connection on the seabed. Some results of the qualification program will be presented, in particular mechanical, bundle components, fatigue and thermal performance tests. Finally, results of the field performance tests and operational feedback by Petrobras will be presented and discussed.

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From Design, Installation and Commissioning of an Electrically Trace Heated Integrated Production Bundle

Quenot¹,

Carvalho²,

Hanonge³

et al. 2015

Day 1 Tue, October 27, 2015

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ETH-HCRAW a Cost Effective Flexible Pipe for Active Heating

Lefer

Dessaint

Marchand

2018

Day 4 Thu, May 03, 2018

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To address flow assurance challenges, Integrated Production Bundle (ETH-IPB) and Heating Cables Replacing Armour Wires (ETH-HCRAW) have been developed. These two technologies use electrical cables, which provide heat to the fluid by Joule effect. They are different in their design, efficiency and cost, and thus on their application domains. This paper details the design, the qualification and the identified envelop of use of the ETH-HCRAW. The pioneer flexible pipe with active heating technology was ETH-HCRAW, i.e. flexible pipe with electrical cables integrated in the tensile armour layers for active heating and such application is developed in the paper. The integration of the active heating in the flexible and the terminations is presented. The overall qualification of this technology is described considering two different levels. Firstly, the qualification of the components of the electrical system through extensive electrical and mechanical tests is developed. Then, the global mechanical behavior and the reliability of the overall system are demonstrated by a phase of full scale tests. Such solution based on integrated electrical cables has been demonstrated to be a safe and effective technology for active heating on flexible pipe through dedicated R&D development back in the early 2000’s. This paper presents the latest developments that enable to position the ETH-HCRAW technology as leading solution for active heating with the advantages of flexible pipes. ETH-HCRAW facilitates the exploitation of deep water projects and long tie back by limiting the temperature losses along the lines. Active heating, by increasing the temperature of the fluid, enhances flow assurance for complex and viscous fluids by reducing the viscosity and reduces wax appearance in the lines. Finally, this technology tackles the formation of hydrates by maintaining a minimum temperature during shut down and start-up phases allowing to remain outside the hydrate formation conditions. ETH-HCRAW is an attractive and cost effective active heating solution with a broad possible domain of application. This technology offers many advantages in terms of flexibility of operation especially for hydrate and wax management. This paper details the numerous advantages and the limitations of this technology compared to other active heating technologies.

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From Design to Installation of the 2nd Generation of Integrated Production Bundle Riser (IPB)

Cited by 2 publications

References 0 publications

From Design, Installation and Commissioning of an Electrically Trace Heated Integrated Production Bundle

From Design, Installation and Commissioning of an Electrically Trace Heated Integrated Production Bundle

ETH-HCRAW a Cost Effective Flexible Pipe for Active Heating

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