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Keywords: pipe
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Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2023
Paper Number: OTC-32279-MS
... Since the concept of this alternative approach involves permitting upheaval displacement of the pipe through the soil cover, a good understanding of the overlying soil behaviour and properties beyond the peak resistance is critical to ensure a robust design. Scope This article aims...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2023
Paper Number: OTC-32224-MS
... The key to making the mechanical seal of the welded joint sealing system work is the method of locking the thermoplastic liner to the steel pipe wall. Without this a mechanical seal would not be possible, as the liner would be free to move inside the steel pipe due to thermal expansion...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2023
Paper Number: OTC-32226-MS
... Abstract The paper presents a unique innovative ROV Tool that is used to install Inconel straps on pipes, spools and jumpers. The tool was developed and built by Saipem Sonsub, in 2020; The tool has been operated (in ultra-deep water), during the past two years, in some offshore campaigns...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-31886-MS
... Abstract The use of Mechanically Lined Pipe (MLP) installed by the reel-lay method is a field proven solution which presents key advantages over other more expensive rigid linepipe and installation methods. Implementing the most commonly used corrosion resistant alloys (CRA) as a thin liner...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-31853-MS
... Abstract Commonly accepted procedures in the industry for calculating high collapse ratings of OCTG casing and tubing are described in Annexes G and H of API 5C3. Both approaches are limited to the analysis of historical data. Moreover, modern pipe dimensional mapping during production allows...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-31976-MS
... Abstract Rock berms are used to restrain flowlines from moving axially by adding vertical load to enhance resistance. Should the contact pressure be reduced at the flowline-berm interface, such as in response to ‘arching’ of the rock berm due to pipe settlement, this resistance may...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-31907-MS
..., allowing well protection from the surface casing string and below. load shoulder elevator application surface string casing and cementing selection pipe rig casing design connector consideration requirement offshore technology conference upstream oil & gas wall thickness operation...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-32023-MS
... temperature is close to the hydrate formation temperature (HFT) and the wax appearance temperature (WAT). Water droplets coat the dry particles and become a part of the particles absorbing free water in the flow. In addition to the seeding mechanism, a robot operated induction coil removes inner pipe wall...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-31995-MS
... and hence gives an interesting overview of this technology and its qualification status. insulation liner outer pipe trl4 high-performance deh-pip efficiency pipe characterization deh pip coating deh-pip offshore technology conference upstream oil & gas inner pipe qualification...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-31700-MS
... Abstract Flexible pipe systems are extensively used in the oil and gas offshore production segment due to its ease of transport and installation, design versatility and performance, especially in deep and ultra-deepwater fields. The criticality of the system and the difficulty of having...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-31726-MS
... to determine sensitivity of C d and C a values to Reynold's number (Re) and the Keulegan Carpenter (K c ) number. Steady and unsteady flows are treated separately, as are unstraked (bare) and straked pipes. The practice of using constant values of hydrodynamic coefficients in riser analysis is simplistic...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-31751-MS
... based on the requirements for the North Sea application. It also proved that the design would require a non-standard pipe size. The pipe and expansion system were tested in a series of surface level qualification tests and at a test rig within a downhole environment. The results of testing validated...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-31775-MS
... will show how this technology is now fully qualified in line with the standard agraff carcass. Designing for dry gas applications When applying internally corrugated agraff strip carcass (standard or optimized type interlocked profiled agraff carcass, as per Figure 2 ) in a rough bore flexible pipe...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-31808-MS
... Abstract Flexible pipes annulus condition is a key concern regarding the pipe's integrity. The presence of water in the annulus may lead to a corrosive environment which reduces the fatigue life of the tensile armours. Annulus flooding is the most frequent failure case [ 1 ] and may occur due...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-32009-MS
... complex, slimmer, non-standard well designs. This paper describes the Performance Baskets approach, a solution developed to meet those collapse needs that cannot be met using standard materials and conventional techniques for pipe performances calculation. This methodology uses production's intrinsic...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-32088-MS
... the conventional DEH-PiP, then to design a new outer pipe to decrease dramatically its impedance. A strong effort was spent on the building of an accurate electrical model for the High-Performance DEH-PiP, and finally full-scale electrical tests on a representative prototype were carried out to validate...
Proceedings Papers

Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31014-MS
... environment to address this industrial demand is essential. In order to lighten the C&K lines, IFPEN has developed and patented a technology for high pressure pipes using thermoplastic composite reinforcement. The steel/composite C&K lines are comprised of multiple composite layers wrapped around...
Proceedings Papers

Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31088-MS
...Objectives of Analysis MLPs are typically supplied with an internal weld overlay at the pipe ends to allow for a high-quality welding and non-destructive examination of the field joint girth welds. For the manufacturing of the pipe end weld overlay it is essential that a defined length is free...

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