scholarly journals Non-Contact Quantification of Longitudinal and Circumferential Defects in Pipes using the Surface Response to Excitation (SuRE) Method

2020 ◽  
Vol 8 (2) ◽  
Author(s):  
Amin Baghalian ◽  
Shervin Tashakori ◽  
Volkan Y. Senyurek ◽  
Dwayne McDaniel ◽  
Hadi Fekrmandi ◽  
...  
Keyword(s):  
Guided Waves ◽  
Oil And Gas ◽  
Mode Selection ◽  
Rapid Screening ◽  
Successful Implementation ◽  
Cylindrical Structures ◽  
Surface Response ◽  
Damage Quantification ◽  
Hollow Cylinders ◽  
Circumferential Defects

Rapid screening and monitoring of hollow cylindrical structures using active guided-waves based structural health monitoring (SHM) techniques are important in chemical, petro-chemical, oil and gas industries. Successful implementation of the majority of these techniques in the SHM of pipes depends on the identification of the appropriate guided-waves modes and their frequencies for each application. The highly dispersive nature of the guided-waves and presence of multi modes at each frequency makes the mode selection and the interpretation of signals a challenging task. The surface response to excitation (SuRE) method was developed to detect the defects and loading condition changes on plates with minimum dependence on the excitation of particular modes at certain frequencies. In the present study, the SuRE method is proposed for quantification of longitudinal and circumferential defects, with varying severities, as common examples of axisymmetric and nonaxisymmetric defects in pipes. The results indicate that the SuRE method can be used effectively for damage quantification in hollow cylinders.

scholarly journals Estimation of the Filling Distribution and Height Levels Inside an Insulated Pressure Vessel by Guided Elastic Wave Attenuation Tomography

Sensors ◽  
2020 ◽  
Vol 21 (1) ◽  
pp. 179
Author(s):  
Robert Neubeck ◽  
Mareike Stephan ◽  
Tobias Gaul ◽  
Bianca Weihnacht ◽  
Lars Schubert ◽  
...  
Keyword(s):  
Guided Waves ◽  
Oil And Gas ◽  
Wave Attenuation ◽  
Oil And Gas Industry ◽  
Pressure Vessels ◽  
Prototype System ◽  
Gas Industry ◽  
Distributed Sensor ◽  
Conversion Rates ◽  
Scale Experiment

The operation efficiency and safety of pressure vessels in the oil and gas industry profits from an accurate knowledge about the inner filling distribution. However, an accurate and reliable estimation of the multi-phase height levels in such objects is a challenging task, especially when considering the high demands in practicability, robustness in harsh environments and safety regulations. Most common systems rely on impractical instrumentation, lack the ability to measure solid phases or require additional safety precautions due to their working principle. In this work, another possibility to determine height levels by attenuation tomography with guided elastic waves is proposed. The method uses a complete instrumentation on the outer vessel shell and is based on the energy conversion rates along the travel path of the guided waves. Noisy data and multiple measurements from sparsely distributed sensor networks are translated into filling levels with accuracies in the centimeter range by solving a constrained optimization problem. It was possible to simultaneously determine sand, water, and oil phases on a mock-up scale experiment, even for artificially created sand slopes. The accuracy was validated by artificial benchmarking for a horizontal vessel, giving references for constructing an affordable prototype system.

Development and Execution of Heritage Petroleum Company Limited’s First Offshore Workover Campaign - A Case History of Successful Implementation of Performance Management

2021 ◽  
Author(s):  
Shazim Mohammed ◽  
Dale Persad ◽  
Kirk Baksh
Keyword(s):  
Trinidad And Tobago ◽  
Performance Management ◽  
Net Present Value ◽  
Oil And Gas ◽  
Selection Process ◽  
Public Procurement ◽  
Dynamic Modelling ◽  
Successful Implementation ◽  
Procurement Process ◽  
Petroleum Company

Abstract Heritage Petroleum Company Limited (HPCL) is the newest operating oil and gas company in Trinidad and Tobago and was vested and entrusted with the operation and management of all the exploration and production assets of Petroleum Company of Trinidad and Tobago Limited ("Petrotrin"). Being driven by oil-based revenue meant that rig intervention projects had to be innovative, economically viable and practical to meet the company’s financial commitments. This paper presents the concepts and processes behind the development and implementation of HPCL’s Workover Scoping and Procurement Framework. The offshore team recognized the need to frame the well review and workover candidate selection process as well as a procurement process that was both operationally accommodating and in accordance with public procurement regulations. This process would also have to be tested, since it was a new concept that was not practiced by Petrotrin. The well review process involved defining reservoir deliverability and in-place volumes through static and dynamic modelling, establishing current well potential and deliverability via nodal analysis with installed completion designs, topside infrastructure conditions and flow restrictions. The procurement process was achieved by identifying local resources and generating framework agreements for services and equipment. Job specific resources were tendered to ensure a transparent selection and award. The process also involved ranking the risks of all candidates. Economic analyses were performed to determine whether the financial indicators were positive to ensure viability of the campaign. A scorpion plot was also used to manage the performance of this framework during the campaign. The result was a campaign consisting of 15 wells that was delivered on time and within the workover budget. Actual production gain was over 1700 BOPD as opposed to the expected gain of 1450 BOPD. Budgeted Net Present Value (NPV) and actual NPV was calculated to be US$ 9.42 million dollars and US$ 11.7 million dollars respectively. All resources were demobilized and removed from the offshore acreage to reduce risks and floating expense to the company at the end of the campaign.

Construction safety case (MAP) – a strategy for successful implementation

2018 ◽  
Vol 58 (2) ◽  
pp. 601
Author(s):  
Roberta Selleck
Keyword(s):  
Oil And Gas ◽  
Organisational Change ◽  
Field Work ◽  
Construction Safety ◽  
Near Miss ◽  
Successful Implementation ◽  
Operations And Maintenance ◽  
Safety Case ◽  
Operating Limits ◽  
Safety Cases

The Critical Control Management (CCM) methodology has emerged in the construction and mining industries as a ‘safety case’ to manage personal safety risks associated with high-risk activities. The construction-based Major Accident Prevention (MAP) program has been implemented on oil and gas projects since early 2016 and has been tested in greenfields, brownfields, operations and maintenance, and hook-up and commissioning environments. Since implementing the MAP program, a reduction in high potential ‘near miss’ events and a reduction of all injuries has been observed. Within the Clough organisation, four projects that are near completion have zero injuries. MAP works by providing the specific standards (rules), in a similar manner to ‘operating limits’ used in process control systems, to ensure critical control integrity. Through these specific standards, MAP eliminates substandard field work practices becoming normalised and MAP empowers field supervisors and even line employees to ‘stop work’ when critical control standards are not met in the field. Based on widely accepted organisational change principles, a framework for successfully implementing CCM has been developed. The framework is critical to successfully implementing and executing construction safety cases in a proactive manner. This paper explores what comprises CCM and the key attributes contributing to successful implementation.

scholarly journals Impact of Operational Research on Performance Control of a Project in the Oil and Gas Industry

2020 ◽  
Vol 5 (3) ◽  
pp. 320-326
Author(s):  
Ionut Nica
Keyword(s):  
Oil And Gas ◽  
Raw Materials ◽  
Oil Industry ◽  
Oil And Gas Industry ◽  
Industrial Area ◽  
Petroleum Products ◽  
Successful Implementation ◽  
Human Society ◽  
Current Configuration ◽  
Extraction Refining

The explosive development of the human society in contrast to the limited character of resources determines the need for successful implementation of mathematic models in the decision-making process concerning the use of available resources. The oil industry includes a series of global processes such as mining, extraction, refining, transport (road, rail, ship and pipeline) and oil products. The products of this industry with the highest degree of utilization are gasoline and diesel but the portfolio is much broader, kerosene, bitumen, fuel and raw materials for other chemicals such as solvents, pesticides, fertilizers and materials plastic. The oil industry comprises three major areas: "upstream" extraction; refining - "midstream" and transportation and marketing of downstream products. In most cases refining is considered to be part of downstream, Oil and petroleum products are essential for many industries and their importance is vital in maintaining and developing the industrial area in the current configuration.

scholarly journals О ФАКТОРАХ ЭФФЕКТИВНОЙ РЕАЛИЗАЦИИ ИНВЕСТИЦИОННЫХ ПРОЕКТОВ

World Science ◽  
2019 ◽  
Vol 3 (5(45)) ◽  
pp. 16-21
Author(s):  
Мирхамидова Д. Н. ◽  
Атаханова Ш. С. ◽  
Соатов Ф. Й.
Keyword(s):  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Successful Implementation ◽  
Gas Industry ◽  
Investment Projects

In article researches on establishment of influence of geological and technology factors on efficiency of investment projects, determination of risks at implementation of investment projects in the oil and gas industry and feature and factors for successful implementation of investment projects are considered.

scholarly journals An Efficient Damage Quantification Method for Cylindrical Structures Enhanced by a Dry-Point-Contact Torsional-Wave Transducer

2022 ◽  
Vol 12 (2) ◽  
pp. 572
Author(s):  
Shengbo Shan ◽  
Yongdong Pan ◽  
Shengyu Xiao
Keyword(s):  
Point Contact ◽  
Low Frequency ◽  
Wave Interaction ◽  
Torsional Wave ◽  
Wave Reflections ◽  
Cylindrical Structures ◽  
Quantification Method ◽  
Damage Quantification ◽  
Torsional Waves ◽  
Theoretical Analyses

Quantification of damage sizes in cylindrical structures such as pipes and rods is of paramount importance in various industries. This work proposes an efficient damage quantification method by using a dry-point-contact (DPC) transducer based on the non-dispersive torsional waves in the low-frequency range. Theoretical analyses are first carried out to investigate the torsional wave interaction with different sizes of defects in cylindrical structures. A damage quantification algorithm is designed based on the wave reflections from the defect and end. Capitalizing on multiple excitations at different frequencies, the proposed algorithm constructs a damage image that identifies the geometric parameters of the defects. Numerical simulations are conducted to validate the characteristics of the theoretically-predicted wave-damage interaction analyses as well as the feasibility of the designed damage quantification method. Using the DPC transducer, experiments are efficiently carried out with a simple physical system. The captured responses are first assessed to confirm the capability of the DPC transducer for generating and sensing torsional waves. The sizes of the defects in two representative steel rods are then quantified with the proposed method. Both numerical and experimental results demonstrate the efficacy of the proposed damage quantification method. The understandings of the wave-damage interaction and the concept of the damage quantification algorithm lay out the foundation for engineering applications.

scholarly journals China’s “One Belt, One Road Initiative”: challenges and requirements for its successful implementation in Central Asia

2017 ◽  
pp. 127-138
Author(s):  
Francisco Gómez Martos
Keyword(s):  
Soviet Union ◽  
Natural Resources ◽  
Central Asia ◽  
Former Soviet Union ◽  
Oil And Gas ◽  
Regional Cooperation ◽  
Successful Implementation ◽  
Trade Integration ◽  
The European Union ◽  
Intergovernmental Cooperation

Twenty five years after the dissolution of the former Soviet Union and the reemergence of the Central Asian Republics as independent States, this region continues to be the scene of rivalries amongst the big powers (Russia, China, the European Union, USA, India, Japan, Turkey and Iran) competing in a sort of a “new Grand Game” to increase their geopolitical and economic influence in the region. Its geography, diverse and rich natural resources, like oil and gas, explain the ongoing hidden rivalries. Despite its common historical and cultural past, Central Asia constitutes a heterogeneous region with a multiethnic and multi-linguistic composition and a low degree of physical, economic and trade integration. The lack of mutual trust, the persisting tension over borders and the use and sharing of natural resources, as well as different levels of economic performance have so far jeopardized the development of genuine regional cooperation. Against this background, the idea behind the Chinese OBOR Initiative to develop rapid transportation, if well implemented, could theoretically, by improving interregional connectivity, develop the Central Asia regional market and foster intergovernmental cooperation and people-to-people contacts within the region. In this context, could we expect that the ambitious Chinese OBOR Initiative will boost geopolitical stability and promote shared economic and trade benefits in Central Asia? What are the conditions for that need to be fulfilled?The author analyzes in depth certain crucial political, economic and institutional requirements for the successful implementation of the OBOR Strategy and concludes, however, that three years after the launching of this crucial instrument of the Chinese “globalization without democracy” model, its implementation faces major problems and thus raises more doubts than certainties.

Guided Waves in Hollow Cylinders: Theoretical and Numerical Study

2021 ◽  
pp. 295-303
Author(s):  
Quang Hung Le ◽  
Yen Nguyen ◽  
Hoai Nguyen ◽  
Duy Kien Dao ◽  
Hoai-Nam Tran ◽  
...  
Keyword(s):  
Guided Waves ◽  
Numerical Study ◽  
Hollow Cylinders

scholarly journals Disaggregation and discretization methods for formation damage estimation in oil and gas fields: an overview

DYNA ◽  
2020 ◽  
Vol 87 (213) ◽  
pp. 105-115
Author(s):  
Oscar E Medina ◽  
Juan P Castaño-Correa ◽  
Cristina Caro-Vélez ◽  
Richard D Zabala ◽  
Jorge I Bahamón ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Formation Damage ◽  
Damage Estimation ◽  
Rock System ◽  
Discretization Methods ◽  
Oil And Gas Fields ◽  
Industrial Sectors ◽  
Damage Quantification ◽  
Gas Fields ◽  
Physical Changes

Formation damage could potentially impede production and injection operations. Hence, characterization and discretization processes of formation damage should be connected to quantification and disaggregation techniques, relying on characterization fundamentals that consider chemical and physical changes in the fluid and rock system through the field productive life. This document presents a review of different disaggregation, quantification and discretization methods for the formation damage estimation in oil and gas fields. This review is mainly divided into three main sections, namely: i) Formation damage diagnosis, ii) Formation damage quantification, and iii) Formationdamage disaggregation. This document will aid in the alignment of the academic and industrial sectors to incentivize the prevention and inhibition of formation damage, as well as the optimal design of remediation mechanisms.

scholarly journals Analysis of Guided Wave Propagation in a Multi-Layered Structure in View of Structural Health Monitoring

2019 ◽  
Vol 9 (21) ◽  
pp. 4600 ◽  
Author(s):  
Yevgeniya Lugovtsova ◽  
Jannis Bulling ◽  
Christian Boller ◽  
Jens Prager
Keyword(s):  
Wave Propagation ◽  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Guided Waves ◽  
Oil And Gas ◽  
Numerical Approach ◽  
Guided Wave ◽  
Mode Shapes ◽  
Engineering Structures ◽  
Structural Health

Guided waves (GW) are of great interest for non-destructive testing (NDT) and structural health monitoring (SHM) of engineering structures such as for oil and gas pipelines, rails, aircraft components, adhesive bonds and possibly much more. Development of a technique based on GWs requires careful understanding obtained through modelling and analysis of wave propagation and mode-damage interaction due to the dispersion and multimodal character of GWs. The Scaled Boundary Finite Element Method (SBFEM) is a suitable numerical approach for this purpose allowing calculation of dispersion curves, mode shapes and GW propagation analysis. In this article, the SBFEM is used to analyse wave propagation in a plate consisting of an isotropic aluminium layer bonded as a hybrid to an anisotropic carbon fibre reinforced plastics layer. This hybrid composite corresponds to one of those considered in a Type III composite pressure vessel used for storing gases, e.g., hydrogen in automotive and aerospace applications. The results show that most of the wave energy can be concentrated in a certain layer depending on the mode used, and by that damage present in this layer can be detected. The results obtained help to understand the wave propagation in multi-layered structures and are important for further development of NDT and SHM for engineering structures consisting of multiple layers.

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