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Jee's span assessment expertise delivers significant savings to the oil and gas industry.

The company's engineering team boasts a proven track record for providing pipeline span assessment to the global oil and gas industry, with systems in place to run span analysis quickly and accurately

Jee Ltd, a leading multi-disciple subsea engineering and training firm, has completed more than a thousand specialist span assessments already this year, delivering major cost-savings by avoiding remediation work.

Graham Wilson, head of Late Life at Jee Limited, says: "Pipeline spans are formed due to an uneven seabed, scour or sandwaves, and can cause integrity issues with potential catastrophic and costly results. These spans can be susceptible to failure through fatigue and, as span length increases, the risk of fatigue damage due to direct wave loading or vortex-induced vibrations (VIV) also increases."

Jee's engineering team boasts a proven track-record for providing pipeline span assessment to the global oil and gas (O&G) industry, with systems in place to run span analysis quickly and accurately.

Wilson continues: "We have an in-depth understanding of the codes and standards and appreciate their limitations, allowing us to effectively challenge them without adversely affecting safety. By doing so we can remove conservatism and increase the allowable span length, minimising the remediation work required which can lead to expensive operations and potentially create new issues.

"When intervention work is necessary, we are pragmatic in our approach and ensure offshore vessel time and activities are optimised to maintain economical operations."

In addition, Jee has developed an innovative span monitoring kit which monitors the motion of spans and the associated environmental conditions. The data collected can be used to prove that VIV isn't occurring when predicted by the design codes, removing the need for costly corrective work. Alternatively, the kit allows the occurrence of VIV to be detected, providing supporting evidence of the need for intervention (the kit can also be used to provide assurance that remediation measures are having the desired effect).

"Jee has a long history of supporting subsea operations and is committed to providing quality engineering services in a technically advanced, secure and sustainable way. Our clients' needs are always at the forefront of what we do, and we consistently aim to add-value to all projects and operations," Wilson concludes.

Jee is an independent subsea engineering and training company with offices in Aberdeen, London and Tonbridge. Jee's multi-disciplined capabilities and integrated services span the whole life-of-field including design, integrity management, pigging, late life and training for the global oil, gas and renewables industries.

Pigging: In the current era of ageing pipelines, the need to guarantee pipeline integrity is becoming ever more important. One reliable method for accurately inspecting the full length of a pipeline from pig trap to pig trap is to run an intelligent pig down the line, to inspect for corrosion and other defects. Investing in a pigging programme helps provide confidence in safe operation and maximises output by avoiding expensive mistakes.

Guaranteeing pipeline integrity: Jee says it has a long and successful track record of undertaking pigging-related projects for clients around the world. It has developed in-house proprietary best practice pigging assurance check sheets based on years of experience, to review the proposed pig designs, operations, procedures and risk assessments. Through our early involvement in the design process, future operational issues and risks can be avoided. "We understand how to plan a campaign to avoid stuck pigs and similar issues and improve the chances of first run success. We can also tailor our support during campaigns to adhere to your own best practice," the company says.

Minimising risk and maximising success: "We appreciate the commercial aspects of pigging campaigns and the impact that schedule delays can have in reducing production and increasing down-time. Our team have a proven track record of producing accurate schedules and optimise this by considering shift patterns and minimising time between runs, therefore reducing the overall duration of the campaign and lost production (if applicable)," it says. Our detailed scheduling methodology also enables our clients to effectively plan and budget for down-time. Jee consistently receives excellent feedback from operators and pig vendors who praise the level of detail in our documentation that helps projects run smoothly during execution.

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Publication:Oil & Gas News
Date:Nov 30, 2015
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