A probabilistic approach to estimate the remaining life and reliability of corroded pipelines

Zelmati, D.; Bouledroua, O.; Ghelloudj, Oualid; Amirat, Abdelaziz; Djukic, Milos B.

doi:10.1016/j.jngse.2021.104387

Cited by 20 publications

(3 citation statements)

References 29 publications

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“…The corrosion of underground and surface equipment due to high temperatures, the presence of acidic gas (CO 2 and H 2 S) dissolved in water and other products of oxidation reactions ,− has been one of the greatest drawbacks of the application of the ISC process in Venezuela. , It is reported that based on field experiences in the USA, chemical treatments to reduce the rate of corrosion have been based on a mixture (blend) of acetic acid, imidazoline, and quaternary ammonium …”

Section: Discussionmentioning

confidence: 99%

Workflow of the In Situ Combustion EOR Method in Venezuela: Challenges and Opportunities

Rodriguez¹,

Llamedo

Belhaj

et al. 2023

ACS Omega

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In situ combustion (ISC) is one of the oldest thermal enhanced oil recovery methods to have been applied in Venezuela to increase the production of highly viscous crude oils, with a first field application in 1959 in the Tia Juana Field-Lake Maracaibo Basin. This method, which is characterized by high energy efficiency, consists of injecting air into the reservoir where exothermic oxidation reactions initiate to increase the mobility of the oil. Compared to other thermal enhanced oil recovery methods such as steam injection, ISC has a lower environmental impact in terms of water and fuel consumption, and emission of gases as the produced gases can be reinjected or stored. Several ISC projects have been carried out in Venezuela in Tia Juana, Morichal, Miga, and Melones fields. Although the technical results have been satisfactory in terms of viscosity reduction and improved crude oil properties (such as °API), other important aspects of project evaluations have not been convincing due to the following factors: high temperatures in producing wells, acid gases management, generation of complex emulsions, corrosion, and high CAPEX and OPEX costs. Nevertheless, additional research work has been conducted on process optimization, using catalysts and hydrogen donors, to better address these other factors. Due to the great need to increase hydrocarbon production in Venezuela and to the advantages of ISC as an upgrading technique where low-carbon fuels and hydrogen as byproducts are generated, this paper presents a revisit of ISC projects in Venezuela from R&D technical aspects to field applications. It seeks to identify the main insights regarding the success and failure of the evaluated projects and make substantiated recommendations in the case of future applications of this technology.

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Section: Discussionmentioning

confidence: 99%

Workflow of the In Situ Combustion EOR Method in Venezuela: Challenges and Opportunities

Rodriguez¹,

Llamedo

Belhaj

et al. 2023

ACS Omega

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“…In general, carbon steel pipes are widely used to supply uids such as oil, gas, and water in homes and hazardous environments. It has excellent mechanical properties, such as good hardness, high strength, good resistance to wear, better fabricability, the economic, acceptable limit of corrosion, and it withstands elevated pressure conditions compared to other materials in the pipe (Zelmati et al 2022). According to the statistics report of transportation distance of oil and natural gas pipelines in Taiwan in the year, 2018 is about 15,700 kilometers, and most of them are buried underground.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Simulated Defects Detection in Submerged Transmission Pipeline

Durai,

Huang,

Chi-Chuan

et al. 2023

Journal of Pressure Vessel Technology

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The transport of oil, natural gas, water, and other petrochemical substances is extensively supported by pipelines over long distances. However, long-term use without maintenance causes the residue in the pipeline to gradually settle in the pipeline due to physical or chemical action, and the pipeline becomes an accident. This leads to overpressure and leakages in the pipeline, which in turn affects the safety of the industry and people's lives. This study aims to develop a nondestructive inspection to measure defects in a water pipeline using an ultrasonic technique. An SCH80 carbon steel pipe with a standard thickness of about 11 mm was used for the experiments, and various sets of defects inside and outside of the pipe were simulated, such as holes and grooves. A submerged ultrasonic transducer was used to evaluate the simulated pipeline defects and then acquire the defect data in an imaging system using LabVIEW and origin software. In this way, the thickness and location of the defects were clearly located. In addition, the ultrasonic detection error was calculated to be less than 6.5%. It helps to use this technique and equipment for the inspection of underground fluid pipelines.

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“…In the last decades, numerical simulation methods have been widely applied to evaluate pipeline's reliability under the impact load. Zelmati et al [30] proposed a probabilistic method to evaluate the corroded pipeline's remaining life, and FEM was used to calculate the pipeline's failure pressure. Based on FEM, Abyani et al [1] proposed a new method to evaluate the reliability of pipeline corrosion resistance.…”

Section: Introductionmentioning

confidence: 99%

Dynamic reliability evaluation of buried corroded pipeline under rockfall impact

Wang¹,

Xie²,

Su³

2022

Eksploatacja i Niezawodność – Maintenance and Reliability

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Load impact, such as the rockfall, may bring significant threats to the integrity management of pipeline. This study is intended to evaluate the reliability of buried pipeline under rockfall impact, and so as to reduce the possible failure and unnecessary downtime. Firstly, the dynamic response of the buried pipeline under load is analyzed by Euler Bernoulli foundation beam. After that, the process of rockfall impact on buried corroded pipeline is simulated with nonlinear finite element method. Furthermore, the influence of rockfall’s parameters (including rockfall mass, impact velocity, impact position, etc.) on the pipeline’s equivalent stress is quantitatively analyzed. Eventually, a time-varying reliability model is established to calculate the failure probability. The results indicate that the mass and velocity of the rockfall have obvious influence on the pipeline’s failure probability, and the change of impact’s position has small influence. The proposed method can provide a theoretical reference for the design and maintenance of buried pipeline.

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A probabilistic approach to estimate the remaining life and reliability of corroded pipelines

Cited by 20 publications

References 29 publications

Workflow of the In Situ Combustion EOR Method in Venezuela: Challenges and Opportunities

Workflow of the In Situ Combustion EOR Method in Venezuela: Challenges and Opportunities

Experimental Study on the Simulated Defects Detection in Submerged Transmission Pipeline

Dynamic reliability evaluation of buried corroded pipeline under rockfall impact

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