Dynamic Integrity Management of Flexible Pipe through Condition Performance Monitoring

2018 ◽  
Author(s):  
Clara Escuer ◽  
Camille Mahieu ◽  
Paul Sicsic
Keyword(s):  
Performance Monitoring ◽  
Flexible Pipe ◽  
Integrity Management ◽  
Dynamic Integrity

Performance Monitoring of Deepwater Risers

2008 ◽  
Author(s):  
Ricky Thethi ◽  
Pei An
Keyword(s):  
Gulf Of Mexico ◽  
Performance Monitoring ◽  
Management Program ◽  
Free Standing ◽  
Development Scenarios ◽  
Integrity Management ◽  
Offshore Industry ◽  
Dynamic Structures ◽  
Actual Response ◽  
Deepwater Risers

Deepwater risers are complex dynamic structures subject to extreme events in the Gulf of Mexico such as hurricanes and high currents. The offshore industry in the Gulf of Mexico is aggressively moving into the ultra deep and developing challenging fields with high pressure, high temperature conditions and corrosive production fluids. Floating production vessels such as semi-submersibles and FPSOs are being selected for these developments and these vessels typically have higher motions than Spars and TLPs used to date. Consequently, the risers become increasingly challenging to engineer and design margins can be significantly reduced. Uncertainties in design basis data, actual response in the field, and component degradation with time can be effectively managed by monitoring the performance of the riser system in service through direct structural monitoring on the riser in conjunction with vessel and environmental monitoring. Such a system forms an integral part of the integrity management program and can allow anomalies to be identified ahead of time to prevent catastrophic riser failure. This paper puts forward the benefits of riser performance monitoring and describes system based architectures for various development scenarios utilizing dry tree vertical top tensioned risers, wet trees with SCRs, and wet trees with free-standing risers.

An Integrity Management Strategy Based on Flexible Risers Conceived to Be Self-Monitored

2007 ◽  
Author(s):  
Marcelo Brack ◽  
Sergio Roberto Alves Mendes ◽  
Rodrigo Cesar Lancelotti Campos ◽  
Luiz Antonio Lobianco e Souza
Keyword(s):  
Management Strategy ◽  
Relevant Information ◽  
Gas Production ◽  
Point Of View ◽  
Flexible Pipe ◽  
Self Monitoring ◽  
Basic Premise ◽  
Oil Companies ◽  
Integrity Management ◽  
Operation Phase

Many of the current practices applied for offshore production managing emphasize those aspects related to the efficiency of oil & gas production and exportation. Nowadays, due not only to the inherent technical challenges associated to deep-water applications but also to the increasing importance of the HSE aspects and requirements faced by the industry, a crescent demand to implement a philosophy which focalizes safety, reliability and integrity of their subsea flowing systems is taking place. The handling of monitored data in order to help the pipe operator to control fluid transportation throughout flexible pipes is an old practice performed by Petrobras and other oil companies in the world. However, the idea of acquiring a product which has been conceived, designed and manufactured with both intrinsic monitoring and expert systems is a recent idea. The tendency of the main flexible pipe manufactures is normally to face the problem from the traditional point of view: those systems are considered dissociated one from the other and as appendices to be installed, in the field, after system connection and start-up. Experience demonstrates that the installation of those systems during the operation phase has a number of limitations, restrictions, and associated problems. The main objective of this paper is to present an integrity management strategy based on the concept of the self-monitored flexible riser. Self-monitoring is understood as the own capacity of a product (flexible pipe and components with built-in devices) to acquire data about itself and make use of data from the internal and external environments, during its service life. Monitored data is then processed in order to generate relevant information for the fluid transportation business. The basic premise is to select, during product conception phase, some key-parameters to be further monitored, during the operation phase. The selection is determined by technical criteria depending on the potential failure mechanisms and modes related to the particularities of each different application.

Seal Tight Endfitting and Means to Identify Annulus Condition for Pre-Salt Flexibles in Brazil

2020 ◽  
Author(s):  
M. O. Brandão ◽  
F. Pires ◽  
C. Benirschke ◽  
E. Almeida ◽  
T. Iecker ◽  
...  
Keyword(s):  
Water Stress ◽  
Service Life ◽  
Failure Mode ◽  
Acceptance Test ◽  
Development Phase ◽  
Flexible Pipe ◽  
Pipe Section ◽  
Flexible Pipes ◽  
Integrity Management ◽  
High Concentrations

Abstract The development of Brazil Offshore fields using flexible pipes took the advantage of the possibility to move around lines, anticipate the production and postpone the decision of where exactly the development phase wells should be placed, making the drilling campaign easier, cheaper and faster. For the Pre-Salt fields, mainly in Santos Basin, it is observed high concentrations of H2S and CO2, two major impact contaminants for the metallic layers of the flexible pipe. A new failure mode by SCC is the most concerning one and have several approaches either focused on the installed fleet or focused in the next pipes to be delivered. SCC is a condition that induces cracks in the pipes metallic layers and need three elements to happen: water, stress and susceptible material. If one of these three elements is suppressed, the phenomena is not to happen. This paper will cover and present a design of a seal tight end fitting also with capabilities to be seal tested from the shop during the factory acceptance test and further means to identify if the flexible pipe section is flooded or dry visually, using ROV This information is key for the integrity management of the flexible pipes applied to pre salt fields to assure the most extent of the service life.

Unbonded flexible pipe integrity management, reuse and life extension

2008 ◽  
Vol 48 (1) ◽  
pp. 319
Author(s):  
Adriana Botto ◽  
Céline Banti ◽  
Enda O'Sullivan
Keyword(s):  
Asset Management ◽  
Production Systems ◽  
Cost Effective ◽  
Later Life ◽  
Life Extension ◽  
Original Design ◽  
Flexible Pipe ◽  
Effective Manner ◽  
Manufacturing Testing ◽  
Integrity Management

Australia has a long tradition of innovation in the use of floating production systems in the past 20 years. The classical solution adopts unbonded flexible pipe, a key technology, to enable floating facilities to produce in relatively shallow waters. While unbonded flexible pipe is a reliable technology that has been in use for approximately 30 years, damage, and ultimately failure can occur during its early (i.e. during manufacturing/testing, installation and early operation) and later life. Accurate assessments of the historical records of flexible pipe usage have led to an increased understanding of the potential failure mechanisms. This enables mitigation of incidents by developing operating strategies and procedures to manage the flexible pipe in a knowledgeable and cost effective manner. This paper discusses the available techniques for the inspecting and monitoring requirements of flexible pipe, including consideration of the value offered by conventional general visual inspection (GVI) techniques. Examples of developed alternative technologies are discussed, as well as how these alternatives can reduce the requirement for GVI when supplemented with an integrated integrity management strategy. Furthermore, given the advances in understanding of complex flexible pipe inter-layer behaviour, this paper demonstrates that through proper asset management, flexible pipe technology service life can be extended beyond the original design value. Similarly, flexible pipe that had previously been considered damaged and requiring early replacement can be justified for extension to beyond the original design life. Consideration has also been given to the potential for the re-use of flexible pipes and the hazards which can arise from this activity including recovery, storage, testing and installation. The key stages required to safely manage this process have been outlined.

Proposals for Integrity Management of Flexible Pipe

2013 ◽  
Author(s):  
Shuai Yuan ◽  
Gao Tang ◽  
Jie Bai ◽  
Mohd Fauzi Badaruddin
Keyword(s):  
Research Work ◽  
Management Program ◽  
The Other ◽  
Flexible Riser ◽  
Flexible Pipe ◽  
Whole Process ◽  
Practical Project ◽  
Flexible Pipes ◽  
High Pressure High Temperature ◽  
Integrity Management

The increasing use of flexible pipes in subsea with high pressure/high temperature brings about much more challenges, for example flexible riser fatigue, bird-caging and armour wire disorganization, development of flexible pipes with smooth bore and ones with anti-H2S layer, which demand operators to adopt an effective integrity management program including every phase of flexible pipe industry to avoid reduction of production. To date, much research work has been carried out on this topic. In this paper, the applicable inspection and monitoring measures are presented as proposals to develop the integrity management of flexible pipes. Meanwhile, this paper takes a practical project as an example to show the whole process of integrity management study clearly. The process can be used as reference for the other similar integrity management projects.

A Proposed Strategy for Risk Analysis of Flexible Pipe Systems

2010 ◽  
Author(s):  
Carlos Eduardo Costa Valle Longo ◽  
Guilherme de Salles Bessa ◽  
Marcelo Brack ◽  
Ota´vio Campos de Arau´jo ◽  
Wallace Bartholomeu e Silva
Keyword(s):  
Risk Analysis ◽  
Oil And Gas ◽  
Flexible Pipe ◽  
Pipe System ◽  
Previous Definition ◽  
Integrity Management ◽  
Historic Data ◽  
Potential Failure ◽  
Pipe Systems ◽  
Definition Of

Nowadays, due to the increasing importance of the HSE and also the operational availability requirements, one of the most important challenges for producing oil and gas at subsea environments is to have a mature methodology for quantifying risks. The main objective of this paper is to present a strategy for running risk analysis of flexible pipe systems. These systems are extensively used by Petrobras to flow different kinds of fluids in deep water offshore scenarios. The strategy presented herein includes the classification of threats and the potential failure mechanisms. Probabilistic figures are established depending on the historic data of the components of the flexible pipe system and also on the theoretical results obtained from available models for determination of the component remaining life. The strategy is based on the previous definition of inference rules and technical criteria for probability, consequence and risk assessments. The final goal is to have an adequate tool to help Operators to take decisions, to establish strategies and to improve flexible pipe integrity management.

Flexible Pipe Integrity Management

2003 ◽  
Author(s):  
Luiz Souza ◽  
Salvador Filho ◽  
Marcos Carpigiani ◽  
Jeter Freitas
Keyword(s):  
Composite Structures ◽  
Production Systems ◽  
Flexible Pipe ◽  
Oil Companies ◽  
Long Period ◽  
Flexible Pipes ◽  
Offshore Oil Production ◽  
Integrity Management ◽  
Offshore Oil ◽  
Production Industry

At present, flexible pipes are used worldwide to conduct several fluids within the offshore oil production industry. These flexible pipes are complex composite structures made up of several plastic and steel layers. They are intended to work for a long period of time, something around 20 years. Although the flexible pipes behavior is satisfactory in most applications, they are susceptible to simple damages, for example on the external sheath, which much reduces their service life. The offshore inspection activities are extremely expensive and, given that, these activities need to be very well oriented in order to be effective. This paper describes the Risk Based Inspection Methodology, which is a helpful applicable tool in the integrity management of several flexible pipe systems, allowing to concentrate the efforts where they are really needed. This methodology may be used by the oil companies to reduce overall costs and enhance safety and integrity of the production systems.

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