Development of an Analytical Tool for the Design of Deep Water Riser/Flow Line Thermal Insulation Systems

The offshore oil and gas industry is predicting the discovery of more and more deep water reservoirs. Increased water depths create a requirement for reliable pipelines to economically recover these deep water fields and also to minimize flow assurance problems. Increased flow assurance problems in deeper waters increase the need for thermally insulated pipelines. In this paper we present an overview of the key issues in the analysis and design of thermal insulation systems, identify and discuss how these are addressed by the design tools developed within the DeFRIS project and present results used to validate the algorithms incorporated into the design tool.

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Development of an Analytical Tool for the Design of Deepwater Riser/Flowline Thermal Insulation Systems

Volume 2: Safety and Reliability; Pipeline Technology ◽

10.1115/omae2003-37101 ◽

2003 ◽

Author(s):

Dara Williams ◽

Annette Harte ◽

Frank Grealish

Keyword(s):

Thermal Insulation ◽

Oil And Gas ◽

Oil And Gas Industry ◽

Design Tool ◽

Flow Assurance ◽

Gas Industry ◽

Analysis And Design ◽

Insulation Systems ◽

Key Issues ◽

Offshore Oil And Gas

The offshore oil and gas industry is predicting the discovery of more and more deepwater reservoirs. Increased water depths create a requirement for reliable pipelines to economically recover these deepwater fields and also to minimise flow assurance problems. Increased flow assurance problems in deeper waters increase the need for thermally insulated pipelines. This paper presents an overview of the key issues in the analysis and design of thermal insulation systems, identifies and discusses how these are addressed by the design tools developed within the DeFRIS [1] project and presents results used to validate the algorithms incorporated into the design tool.

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Tubarão Martelo Field Riser System: Shallow Water Challenging

Volume 5A: Pipeline and Riser Technology ◽

10.1115/omae2015-41864 ◽

2015 ◽

Author(s):

Elton J. B. Ribeiro ◽

Zhimin Tan ◽

Yucheng Hou ◽

Yanqiu Zhang ◽

Andre Iwane

Keyword(s):

Shallow Water ◽

Deep Water ◽

Oil And Gas ◽

Vertical Motion ◽

Oil And Gas Industry ◽

System Configuration ◽

Wave Load ◽

Gas Industry ◽

Campos Basin ◽

Water Problem

Currently the oil and gas industry is focusing on challenging deep water projects, particularly in Campos Basin located coast off Brazil. However, there are a lot of prolific reservoirs located in shallow water, which need to be developed and they are located in area very far from the coast, where there aren’t pipelines facilities to export oil production, in this case is necessary to use a floating production unit able to storage produced oil, such as a FPSO. So, the riser system configuration should be able to absorb FPSO’s dynamic response due to wave load and avoid damage at touch down zone, in this case is recommended to use compliant riser configuration, such as Lazy Wave, Tethered Wave or Lazy S. In addition to, the proposed FPSO for Tubarão Martelo development is a type VLCC (Very Large Crude Carrier) using external turret moored system, which cause large vertical motion at riser connection and it presents large static offset. Also are expected to install 26 risers and umbilicals hanging off on the turret, this large number of risers and umbilicals has driven the main concerns to clashing and clearance requirement since Lazy-S configuration was adopted. In this paper, some numerical model details and recommendations will be presented, which became a feasible challenging risers system in shallow water. For instance, to solve clashing problem it is strictly recommended for modeling MWA (Mid Water Arch) gutter and bend stiffener at top I-tube interface, this recommendation doesn’t matter in deep water, but for shallow water problem is very important. Also is important to use ballast modules in order to solve clashing problems.

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ANALYSIS OF A STRAIN GAUGE FOR THE OIL AND GAS INDUSTRY

Bulletin of Dubna International University for Nature, Society, and Man. Series: Natural and engineering sciences ◽

10.37005/1818-0744-2020-2-10-15 ◽

2020 ◽

pp. 10-15

Author(s):

G.A. Ermolaev ◽

N.V. Gorbunov

Keyword(s):

Oil And Gas ◽

New Technologies ◽

Raw Materials ◽

Oil And Gas Industry ◽

Element Analysis ◽

Gas Industry ◽

Analysis And Design ◽

Sensor Model ◽

Specialized Equipment ◽

Tension Sensor

Hydrocarbon raw materials are the cornerstone of modern civilization. Evaluating the resources of existing fields is the most important condition for making a decision on the feasibility of production using new technologies. We discuss the results of analysis and design of a rope tension sensor model for delivering specialized equipment to wells to determine the prospects of a well. The calculations were performed using the universal finite element analysis software package ANSYS.

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New Generation of Heavy Wall Thicknesses Line Pipes for HPHT and Ultra-Deep Water Applications

Volume 4: Materials Technology ◽

10.1115/omae2018-77803 ◽

2018 ◽

Author(s):

Stefano Crippa ◽

Lorenzo Motta ◽

Alessandro Paggi ◽

Emanuele Paravicini Bagliani ◽

Alessandro Elitropi ◽

...

Keyword(s):

Wall Thickness ◽

Deep Water ◽

Oil And Gas ◽

High Pressures ◽

Oil And Gas Industry ◽

Rolling Process ◽

Corrosion Properties ◽

Line Pipe ◽

Gas Industry ◽

New Generation

Oil and Gas industry in the last decades has increased the use and need of heavy wall thickness line pipes, in particular for onshore / offshore high pressures and high temperatures (HP/HT) and offshore deep water / ultra-deep water applications. The paper presents the results achieved by Tenaris on seamless line pipes in grades X65/X70, according to API 5L / ISO 3183, with wall thickness in a range from 40 to 60 mm and diameter between 6 5/8” and 16”, produced by hot rolling process followed by quenching and tempering. Such line pipes are able to withstand very demanding conditions, like sour environment, very high pressure and wide temperature range. In this publication, the main outcomes of laboratory testing activities on the mentioned materials will be presented as part of heavy wall line pipe qualification. For this purpose, a special testing program, including mechanical and corrosion tests, has been executed. Material demonstrated an excellent behaviour, exhibiting both mechanical, toughness and stress corrosion properties suitable for the envisaged harsh applications.

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Direct electric heating: an environmentally friendly flow-assurance tool

The APPEA Journal ◽

10.1071/aj12059 ◽

2013 ◽

Vol 53 (2) ◽

pp. 448

Author(s):

Ingebjørg Lien

Keyword(s):

Oil And Gas ◽

Environmentally Friendly ◽

Electric Heating ◽

Oil And Gas Industry ◽

Electrical Circuit ◽

Flow Assurance ◽

Critical Temperatures ◽

Gas Industry ◽

Field Development ◽

Hydrate Plug

In subsea flowlines, water in the line can form an ice-like structure called a hydrate plug. Wax appearance in flowlines also is a common flow assurance issue. Hydrate and wax appearance can reduce or stop production for weeks. Preventing hydrate and wax in pipelines is a major concern for the oil and gas industry. Direct electric heating (DEH) is a modern and environmentally friendly flow-assurance tool that can reduce capital expenditures (CAPEX) and operating expenditures (OPEX) in field development, reduce the probability of pollution, and reduce handling of toxic disposals as a result of traditional chemical flow assurance methods. DEH is based on using the pipeline as part of the electrical circuit, generating losses in the steel pipe to keep the pipeline and its content above the critical temperatures. Use of DEHs also increases the efficiency at the process plant after planned or unplanned production stops. For marginal fields and fields with heavy or waxy oil, DEH is a flow-assurance method that can enable these fields to be developed profitably. DEH is now a mature technology used for 13–14 years on the Norwegian continental shelf and technology implemented and used in West Africa recently. How successful this technology has been can be summarised by the Tyrihans field where Statoil quoted that they—on this project alone—saved about $USD175 million by implementing DEH. Wärtsilä has been part of the DEH development in Norway since the 90s, and undertakes design and supply of the complete topside power package in addition to electric and optical protection specially developed for DEH systems.

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Thermal insulation: operational properties and methods of research

MATEC Web of Conferences ◽

10.1051/matecconf/201825101016 ◽

2018 ◽

Vol 251 ◽

pp. 01016 ◽

Cited By ~ 7

Author(s):

Alexey Zhukov ◽

Tatiana Konoval’tseva ◽

Ekaterina Bobrova ◽

Ekaterina Zinovieva ◽

Kazbek Ivanov

Keyword(s):

Thermal Insulation ◽

Oil And Gas ◽

Oil And Gas Industry ◽

Mineral Wool ◽

Building Structures ◽

Test Results ◽

Gas Industry ◽

Good Convergence ◽

Testing Facility ◽

Main Components

Construction system consists of materials with different properties. The use of materials in the design should ensure maximum of its performance and its durability. The use of thermal insulation materials is an effective way to form the thermal envelope of a building, reducing energy costs and increasing the durability of building structures. The properties of materials are determined by their structure, which is formed in the process of technological influences. Formation of the insulating shell of oil and gas industry objects is possible only when considering the special features of the thermal insulation layer in the construction and the use of high-quality materials that retain their characteristics, both in the early stages of operation and throughout the calculation period. The first is achieved by competent design, the second the possibility of assessing the properties of thermal insulation (and predicting changes in these properties over time) directly in the construction site.The methodology for assessing the properties of insulating products includes two main components: testing facility and methodology for assessing operational stability. The methodology of conducting accelerated tests and prediction of durability is tested for mineral wool products of a layered, corrugated and volume-oriented structure. The test results give good convergence with the methods recommended by the building codes.

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Behavior Evaluation of Subsea Jumpers Exposed to Current by Experiment and FEM

Volume 5: Pipelines, Risers, and Subsea Systems ◽

10.1115/omae2018-78138 ◽

2018 ◽

Author(s):

Mohammad Mobasheramini ◽

Luciene Alves ◽

Antonio Carlos Fernandes ◽

Gilberto Bruno Ellwanger

Keyword(s):

Deep Water ◽

Oil And Gas ◽

New Technologies ◽

Flow Direction ◽

Experimental Tests ◽

Oil And Gas Industry ◽

Experimental Result ◽

Gas Industry ◽

Oil Companies ◽

Offshore Production

The oil and gas industry is headed toward deep water in recent years. Oil companies are seeking new technologies to meet the challenges of deep-water oil exploration and in the near future, this will bring new discoveries. The most difficulty of exploring oil in this region is the depth where the equipment is installed and the production lines must be safe for such activities. Full understanding of the dynamics of the behavior of this equipment is vital to the success of offshore production and operation due to environmental problems that can occur in an accident and a large amount of economic and human resources involved. The phenomenon of the vortex induced vibration (VIV) is complex and involves an interaction between hydrodynamic forces and the response of the structure. The force and displacement can be determined through experimental tests or the complete numerical simulation of the interaction between the structure and fluid. DNV-GL has recently published a guideline about the design of a subsea jumper [1], but it is still needed many studies and experiments to improve the evaluation of VIV in rigid subsea jumpers in the oil industry. The main objective of the present work is to investigate VIV phenomenon in a jumper exposed to uniform flow and verify its oscillation in the flow direction, which called inline VIV (VIVx). Throughout this study, the finite element method was used to perform the structural and modal analysis of the structure, in order to obtain the modes, frequencies and then validate the experimental result. Experimental analysis of jumpers was also performed in a current tank to evaluate the behavior of the jumper with the current flow.

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Guyana: Liza Phase 1 Rapid Development in a Deepwater Frontier

10.4043/31158-ms ◽

2021 ◽

Author(s):

Amy Styslinger ◽

David Yost ◽

Gina Dickerson ◽

Antoine Minois ◽

Renee Wiwel

Keyword(s):

Deep Water ◽

Oil And Gas ◽

Rapid Development ◽

Phase 1 ◽

Oil Production ◽

Oil And Gas Industry ◽

Development Project ◽

Gas Industry ◽

Cycle Times ◽

Water Developments

Abstract The Liza Phase 1 development project, offshore Guyana, is an unique example of what the offshore oil and gas industry is capable of when working together to deliver a common objective. ExxonMobil and the Stabroek Block co-venturers, Hess Guyana Exploration Limited and CNOOC Petroleum Guyana Limited, commenced oil production from the Liza Destiny floating production, storage, and offloading (FPSO) vessel in December of 2019, less than 5 years from the initial discovery of hydrocarbons in the Staebroek block. With the production and export of its first barrels of oil, the project completed the establishment of a nascent oil and gas industry in Guyana that is poised for tremendous growth in the coming years. The Liza Phase 1 development consists of a 120 kbd conversion FPSO (The Liza Destiny) and a network of subsea infrastructure to produce from and inject in two drill centers. It is expected to develop a resource of about 450 MBO gross estimated ultimate recovery. The water depth ranges from 1,690–1,860 m throughout the development which is located approximately 200 km offshore Guyana. This paper highlights the scope and pace of the project and discusses three specific challenges overcome: the uncertainty of the metocean conditions, extending the application of the selected riser technology, and executing in a challenging and frontier offshore location. A key to the success of the project was the unified approach between stakeholders and the commitment to act as One Team. The Liza Phase 1 project rapidly developed a newly discovered deep water resource in a frontier location while overcoming numerous challenges. By delivering Guyana's first ever oil production among industry leading cycle times, the Liza Phase 1 project has set the foundation for the future of deep water developments in Guyana.

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Gravity-Fed Riserless Coiled Tubing Operations in Ultra-Deepwater: A Milestone Achievement for Riserless Intervention and Plug and Abandonment

10.2118/205828-ms ◽

2021 ◽

Author(s):

Andrea Sbordone ◽

Bernt Gramstad ◽

Per Buset ◽

Rafael Rossi ◽

Charlie Tramier ◽

...

Keyword(s):

Deep Water ◽

Oil And Gas ◽

Open Water ◽

Oil And Gas Industry ◽

Gas Industry ◽

Norwegian Sea ◽

Improve Efficiency ◽

Coiled Tubing ◽

First Time ◽

Water Depths

Abstract In a continuous effort to reduce cost and improve efficiency, the Oil and Gas industry has been trying for the last 10 years to develop methods to perform subsea Coiled Tubing (CT) operations from a vessel and without a riser. In September 2020 a large campaign of Riserless Coiled Tubing (RLCT) coring was successfully executed in the Norwegian Sea, on the Mohns Ridge, approximately 330 nautical miles from the coast. The campaign was performed from a small Anchor Handler Tug Supply vessel, the Island Valiant. A total of 14 open water gravity-fed RLCT runs were executed in water depths between 2780 and 3085 m. The system performed extremely well and proved to be very robust, efficient and effective for these innovative operations. This was the first time that RLCT coring operations were completed without the use of a subsea injector, in the so-called gravity-fed mode, and in such ultra-deep water. This paper describes the project in detail, including the system setup used, a summary of the operations and the actual results achieved, before discussing future improvements and applications of the RLCT technology.

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