scholarly journals Analysis of buried pipelines laid under the pipelines operation, is subjected to operational loads

2019 ◽  
Vol 6 (3) ◽  
Author(s):  
Liudmila Muravieva ◽  
Igor Ovchinnikov
Keyword(s):  
Wall Thickness ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
External Pressure ◽  
Compressive Yield Strength ◽  
Successful Operation ◽  
Gas Industry ◽  
Load Effects ◽  
Bending Loads ◽  
Definition Of

Today’s successful operation within the oil and gas industry is based on the triangle “Safety – Reliability – Profitability (Efficiency)”. It is of high importance to properly balance these different and sometimes opposite positions. The article describes the characteristics of the strength of the buried offshore pipeline. Pipe geometric imperfections as the cross section ovality, combined load effects as axial and bending loads superimposed to the external pressure, material properties as compressive yield strength in the circumferential direction and across the wall thickness etc., significantly interfere in the definition of the demanding, in such projects, minimum wall thickness requirements.

Collapse Propagation of Deep Water Pipelines

2017 ◽  
Author(s):  
Ana Paula França de Souza ◽  
Rafael F. Solano ◽  
Fabio B. de Azevedo ◽  
Erwan Karjadi ◽  
Caroline Ferraz
Keyword(s):  
Wall Thickness ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
External Pressure ◽  
External Diameter ◽  
Gas Industry ◽  
Deep Waters ◽  
Water Pipelines ◽  
Offshore Oil And Gas ◽  
Pipeline Design

Nowadays, the global trend is an increasing need for oil and gas. As the easily recoverable fields have been already developed, the trend in the offshore oil and gas industry is going deeper into the more challenging outlook, such as outside West Africa, the Brazilian Pre-Salt developments and in the Gulf of Mexico. For ultra-deep waters the main design challenge is related to the high external pressure that may cause collapse of pipelines. This potential failure mode is normally dealt with by increasing the pipe wall thickness, but at ultra-deep waters this may require very thick pipe that becomes very costly, difficult to manufacture and hard to install due to its weight. Facing the challenges of the pipeline design for ultra-deep waters, the Collapse Joint Industry Project (JIP) was started to develop a guideline for wall thickness design optimization for offshore pipelines with external diameter to wall thickness ratio less than 20 (D/t < 20). As part of the JIP, nine buckle propagation tests were conducted on full scale seamless pipes. This paper describes these experiments and new conclusions that were raised in light of the test results.

DECISION TYPE—A KEY TO REALISING THE POTENTIAL OF DECISION MAKING UNDER UNCERTAINTY

2007 ◽  
Vol 47 (1) ◽  
pp. 309 ◽  
Author(s):  
S.I. Mackie ◽  
S.H. Begg ◽  
C. Smith ◽  
M.B. Welsh
Keyword(s):  
Decision Making ◽  
Real World ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Decision Making Under Uncertainty ◽  
Gas Industry ◽  
The Past ◽  
Decision Outcomes ◽  
Decision Type ◽  
Definition Of

Business underperformance in the upstream oil and gas industry, and the failure of many decisions to return expected results, has led to a growing interest over the past few years in understanding the impacts of decisionmaking tools and processes and their relationship to decision outcomes. A primary observation is that different decision types require different decision-making approaches to achieve optimal outcomes.Optimal decision making relies on understanding the types of decisions being made and tailoring the type of decision with the appropriate tools and processes. Yet the industry lacks both a definition of decision types and any guidelines as to what tools and processes should be used for what decisions types. We argue that maximising the chances of a good outcome in real-world decisions requires the implementation of such tailoring.

Tracerco Discovery: the world's first subsea computed tomography (CT) scanner for non-intrusive pipeline inspection

2014 ◽  
Vol 54 (2) ◽  
pp. 545
Author(s):  
Lee Robins
Keyword(s):  
High Resolution ◽  
Wall Thickness ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Ct Scanner ◽  
Remotely Operated Vehicle ◽  
Gas Industry ◽  
Pipeline Inspection ◽  
Non Invasive ◽  
Wall Loss

Tracerco Discovery is the world’s first subsea CT scanner, providing high-resolution wall integrity data plus detection of hydrates and other deposits for flow assurance purposes. It is deployed as a remotely operated vehicle (ROV) and the inspection is carried out from the outside of the pipeline. It is the only non-invasive technology capable of inspecting unpiggable coated pipelines and there is no need to remove and replace the pipe’s protective coating. Unpiggable pipelines, especially coated ones, have proven extremely difficult (and in most cases impossible) to inspect for integrity and wall loss issues. An externally deployed tool to do this is needed by the global pipeline industry. Gas hydrates and other pipeline deposits pose a large challenge for the oil and gas industry as they can form restrictions that can result in costly shutdowns and serious safety threats. It is, therefore, important to be able to locate such restrictions subsea with high accuracy to allow safe and efficient remediation operations. Discovery benefits: Production can continue and normal operations are not affected. A high-resolution tomographic image of wall thickness and pipe contents at each scanning location is provided to 2 mm resolution. Coating does not need to be removed. Suitable for gas, liquid, or multiphase flow. Suitable for rigid and flexible lines. Pipe-in-Pipe lines and pipe-bundles can be inspected to measure the wall thickness of outer and inner pipes. The presentation of this extended abstract covers the background of the development work, gives a description of the technology, and shows recent results.

scholarly journals Corrosion Control, Prevention and Mitigation in Oil & Gas Industry

2019 ◽  
Vol 9 (2) ◽  
pp. 1568-1572
Keyword(s):  
Oil And Gas ◽  
Continuous Production ◽  
Oil And Gas Industry ◽  
Co2 Corrosion ◽  
Gas Industry ◽  
Well Control ◽  
Material Choice ◽  
Definition Of ◽  
The Impact ◽  
Oil Gas

The impact of corrosion within the refining industry ends up in the failure of components. This failure leads to closing down the plant to scrub the corroded components. Additionally, corrosion normally causes serious environmental issues, namely spills and releases. A vital resource for all those that are concerned within the corrosion management of oil and gas infrastructure, corrosion management within the oil and gas industry provides engineers and designers with the tools and strategies to plan and implement comprehensive corrosion-management programs for oil and gas infrastructures. Control of corrosion is important for continuous production and evading the well control losses. Materials to be used in down hole have to meet certain characteristics to avoid corrosion and provide additional mechanical strenght. It is potential to determine a logical series of steps for material choice, incorporating analysis of the surroundings, corrosion rate calculations, and final material choice based on established limits. Several developments have taken place in refinement the calculation of CO2 corrosion rates. Moreover, the definition of bitter examination has been reviewed and a way wider evaluation of the relevance of varied established and new materials for various service conditions has been created.

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

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.

scholarly journals Benchmarking Characteristics of Steam Assisted Gravity Drainage (SAGD) Projects: Based On Interview Findings

2015 ◽  
Vol 3 (2) ◽  
pp. 1 ◽  
Author(s):  
Elias Ikpe ◽  
Jatinder Kumar ◽  
George Jergeas
Keyword(s):  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Gravity Drainage ◽  
Gas Industry ◽  
Project Duration ◽  
Steam Assisted Gravity Drainage ◽  
Qualitative Research Methodology ◽  
Definition Of ◽  
Total Project Cost ◽  
Total Project

SAGD is a relatively new method of oil extraction and recovery in Alberta oil and gas industry and the number of new SAGD plants in Alberta is expected to increase within this decade. The paper discusses the interviews finding of benchmarking characteristics of the SAGD projects. The research reviewed and analysed definition of capacity, main features, life cycle/ phases of SAGD projects and also major risks associated with it. A qualitative research methodology was employed in investigating the characteristics of SAGD projects. Interviews were conducted with industry practitioners, which contained open-ended questions. The result found the definition of capacity of SAGD projects is barrels/day and from the lifecycle of SAGD projects procurement/cosntruction phase is 75% of the total project cost while other phase in total constiutues the 25% of the total cost of the project. On the schedule prospective, procurement/construction phase constitute the 55% of the total project duration. This method has the potential to contribute to a reduction in cost and schedule overruns and improves SAGD project performance. It is concluded that the results of the study will help in achieving a higher rate of productivity in the Alberta oil and gas industry.

Research on Metal Forming in Pipe Ends Upsetting Process

2017 ◽  
Vol 265 ◽  
pp. 1076-1080 ◽  
Author(s):  
M.V. Erpalov ◽  
Aleksandr Aleksandrovich Bogatov
Keyword(s):  
Wall Thickness ◽  
Oil And Gas ◽  
Pipe Wall ◽  
Oil And Gas Industry ◽  
Full Scale ◽  
Gas Industry ◽  
Pipe Wall Thickness ◽  
Full Scale Experiment ◽  
Scale Experiment ◽  
Defect Nucleation

Oil country tubular goods (OCTG) are widely used in oil and gas industry. In order to increase joint efficiency of the oil country tubular goods, the process for upsetting their ends is applied. However, the weakness of this upsetting technology is a frequent defect creation on the inner surface of the final product. These imperfections are surface breakings that reduce the effective pipe wall thickness; they are detected close to the upset ends of the pipe. Computer simulation and full-scale experiment were used to study this defect nucleation. According to this research, the occurrence of defects is correlated with average pipe wall thickness, non-uniform wall thickness of the blank, heating mode and friction conditions. The results of full-scale experiment confirm the main conclusions made in the course of the finite element simulation. The research results define the interdependence of actual size of the blank and the operating tool calibration.

The Shortfalls of the Nigerian Oil and Gas Industry Content Act 2010 in Achieving Sustainable Development

2022 ◽  
pp. 264-278
Author(s):  
Manuchim Lawrence Adele
Keyword(s):  
Sustainable Development ◽  
Legal Status ◽  
Oil And Gas ◽  
Environmental Law ◽  
Energy Resource ◽  
Oil And Gas Industry ◽  
Normative Values ◽  
Gas Industry ◽  
Content Development ◽  
Definition Of

This chapter examines the impact that the concept of “sustainable development” in the Nigerian oil and gas industry has had and is likely to have upon the development of energy, resources, and economic growth in the future of Nigeria upon the focus and scope of energy, resource, and environmental law practice associated with that development. The chapter will adopt the definition of sustainable development as articulated in the Brundtland Report by the World Commission on Environment and Development. It will examine the legal status of Sections 10 and 12 of the Nigerian Oil Industry Content Development Act 2010 and its implication on international trade and sustainable development. The chapter argues that Sections 10 and 12 of the Nigerian Oil and Gas Industry Content Act 2010 do not reflect the meaning and intention of the Brundtland's definition of sustainable development, which evinces normative values, values of equity, and justice for all.

The Role Dilemma of Safety Representatives in the UK Oil and Gas Industry

1998 ◽  
Vol 8 (2) ◽  
pp. 253-265
Author(s):  
Malcolm Spaven ◽  
Chris Wright
Keyword(s):  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Gas Industry ◽  
Offshore Oil And Gas ◽  
Definition Of ◽  
Representative System ◽  
The Uk ◽  
Management Functions ◽  
Offshore Oil ◽  
Union Activism

The tension is noted between trade union activism and involvement in employee participation schemes. It is shown why, in the United Kingdom's offshore oil and gas industry, a participation scheme—the safety representative system—may be expected to promote union activism in an industry which has resisted union encroachment. It is explained why and how safety representatives have, nevertheless, tended to deny unions a role in the system by reference to the conditions in which representatives acquire their definition of their function. This leads to a categorization of safety representative motivation and role performance and a clarification of how those definitions which associate the representative with management functions rather than union activism receive institutional support.

scholarly journals Analysis and developmentof financial policy in the oil and gas industry

2019 ◽  
Vol 11 (6) ◽  
Author(s):  
Kristina Salnikova
Keyword(s):  
Oil Recovery ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Financial Policy ◽  
Successful Operation ◽  
Gas Industry ◽  
Subsequent Formation ◽  
Financial Condition ◽  
Management Measures ◽  
Analysis And Synthesis

The problem of choosing a financial policy for the organization's activities is relevant due to the need for decision-making in market conditions. Based on the conducted research, it is concluded that the company's finances always have a monetary form, have a distribution character and are reflected in the form of income and savings of various economic entities, including the state. Any business activity needs to develop an effective financial policy, due to which the successful operation of the enterprise is carried out, the competitiveness of the company in the market is ensured. In the article, the goal is to develop and evaluate the effectiveness of the company's improved financial policy on the example of LUKOIL. In order to achieve this goal, the author solved a number of problems: the analysis of the financial condition was carried out; the current financial policy of the Corporation was evaluated; the efficiency of the new financial policy of the Corporation was developed and evaluated. The result of the work is to identify the purpose of introducing an effective financial policy of LUKOIL – creating new value, ensuring high profitability, providing high income to shareholders by increasing the value of assets of LUKOIL, as well as paying cash dividends. The prospect of further development of the company's financial activities should include: the creation of new fields, intensification of production at existing fields, using the latest technologies and increasing the volume of production drilling, as well as the number of well operations aimed at increasing oil recovery. The research methodology is based on a set of theoretical and empirical research methods: description, comparison, analysis and synthesis of the source material with the final generalization of the results and making a single judgment. The scope of the research results is related to the subsequent formation of proposals and recommendations for the development of organizational, legal, methodological, technical, technological, economic and other management measures in the oil and gas industry.

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