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Back-up ring

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SEMS <span class="search-highlight">Back</span> <span class="search-highlight">Up</span> <span class="search-highlight">Ring</span> (BUR) vs. new SEMS2 improved BUR geometry and seal gland ...
Published: 24 September 2006
Figure 9 SEMS Back Up Ring (BUR) vs. new SEMS2 improved BUR geometry and seal gland support (top), and the corresponding FEA results (bottom). More
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TCI insert, cone groove and <span class="search-highlight">back</span> <span class="search-highlight">up</span> <span class="search-highlight">ring</span> work together to prevent mud packi...
Published: 24 September 2006
Figure 11 TCI insert, cone groove and back up ring work together to prevent mud packing from the cone gauge area into the bearing seal area. More
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4.50″ Gauge <span class="search-highlight">Ring</span> <span class="search-highlight">back</span>-<span class="search-highlight">up</span> packer set in 5.5″ 20# API max I.D
Published: 20 October 2015
Figure 2 4.50″ Gauge Ring back-up packer set in 5.5″ 20# API max I.D More
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4.50&quot; Gauge <span class="search-highlight">Ring</span> <span class="search-highlight">back</span>-<span class="search-highlight">up</span> packer set in 5.5&quot; 20# API max I.D.
Published: 05 December 2016
Figure 1 4.50" Gauge Ring back-up packer set in 5.5" 20# API max I.D. More
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2014
Paper Number: OTC-25212-MS
... and extending the life of equipment in the ever more challenging oilfield environment. An example application is back-up rings used to prevent extrusion of the elastomeric seal materials under high differential pressures. Current PolyArylEtherKetones, in reinforced formulations, can typically withstand...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–26, 2018
Paper Number: SPE-191734-MS
... in-house. The back-up ring system of this ultra-high expansion packer was additively manufactured. The novel AM design substantially reduces the number of components for the packer back-up system while remarkably boosting its expansion capacity and pressure rating. The packer element system installed...
Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing and Well Intervention Conference and Exhibition, March 23–24, 2010
Paper Number: SPE-130520-MS
... inside the seal areas. In addition each element is equipped with expanding anti-extrusion back-up rings on both sides, trapping the element so it has nowhere to go when differential pressure is applied. The straddle uses the existing nipple profile above the no-go for anchoring and is equipped with dogs...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–27, 2006
Paper Number: SPE-103074-MS
...Figure 9 SEMS Back Up Ring (BUR) vs. new SEMS2 improved BUR geometry and seal gland support (top), and the corresponding FEA results (bottom). ...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 1993
Paper Number: OTC-7178-MS
... and ovality tolerances, When swivels are designed for with extreme pressure and temperature conditions, the initial gaps may already be larger than the allowable, so that anti- extrusion rings (back-up rings) are required. Back-up rings are made of chemically inert materials which have a very high compressive...
Proceedings Papers

Paper presented at the SPE Permian Basin Oil and Gas Recovery Conference, May 15–17, 2001
Paper Number: SPE-70004-MS
... of wireline or coiled tubing that can be snubbed in the hole. Reduced mill-out times have been attributed to a combination of the interlocking pedal design of the back-up rings and the composite material construction used for the back-up rings. As milling continues through the CBP, a back- up ring system...
Proceedings Papers

Paper presented at the SPE Production and Operations Symposium, March 24–27, 2001
Paper Number: SPE-67200-MS
... of composite bridge plugs. The material of the composite bridge plug has been designed and tested for maximum cuttings removal when milled on coiled tubing mills and motors ( Fig. 4 ). An interlocking back-up ring system will support the packing elements, for increasing pressure integrity, and also keep...
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Elastomer behavior in 2D FEA using fixed geometries and properties of <span class="search-highlight">back</span>-...
Published: 26 September 2016
Figure 3 Elastomer behavior in 2D FEA using fixed geometries and properties of back-up ring and conceptual back-up from 3D FEA output. More
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A pair of ultrasonic flow meter sensor housings, showing window, PZT crysta...
Published: 01 March 2016
Figure 10 A pair of ultrasonic flow meter sensor housings, showing window, PZT crystal, o-rings and back up rings, and acoustic isolators. More
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Mud packing of the SEMS in service (left), and photos of actual O-<span class="search-highlight">ring</span> ener...
Published: 24 September 2006
Figure 6 Mud packing of the SEMS in service (left), and photos of actual O-ring energizers in the new and worn conditions (upper right), and a worn Back Up Ring (lower right). More
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 8–10, 2012
Paper Number: SPE-159182-MS
... rings. The rubber packing elements push against the back-up rings, which cause them to expand out to the casing ID. The higher the temperature, the more difficult it is to set this packing element system correctly. This is because the higher temperatures cause the packing element to become softer, which...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2008
Paper Number: OTC-19626-MS
... an effective seal. The combination of materials with increasing stiffness absorbs and distributes sealing forces. This energy distribution allows the softer sealing element to remain intact while the stiffer back-up system contains the seal. Self-Energized Seals O-rings are the simplest and the most versatile...
Proceedings Papers

Paper presented at the Corrosion97, March 9–14, 1997
Paper Number: NACE-97087
... version of an earlier installation built at Exxon (EPR), Houston. 1 PBR SEAL STACKS Dynamic seals for PBR applications typically comprise a repeating series of elastomer primary seal elements, polytetrafluoroethylene (PTFE) secondary seals and reinforced polymer back-up rings. A set of such elements...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 15–18, 2021
Paper Number: SPE-207368-MS
... plugs available but most of these still leave remnants such as metal back-up rings, and slip inserts and buttons. With an MSF system, the balls can either be allowed to disintegrate completely or can even be flowed to surface; producing the well immediately after frac through the ball seat which would...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2014
Paper Number: OTC-25304-MS
... Behavior at HPHT A Case Study: Back-up Ring Extrusion , MERL Engineering with Oilfield Polymers Conference 2012 . Wei , R. P. In Fracture mechanics: integration of mechanics, materials science, and chemistry , Cambridge University Press : 2009 . Sepe , M. In Pocket Performance...
Proceedings Papers

Paper presented at the SPE EUROPEC/EAGE Annual Conference and Exhibition, June 14–17, 2010
Paper Number: SPE-130540-MS
... pressure (BHP) of 15,000 psi and a bottomhole temperature (BHT) of 400°F. A more elaborate back-up system was developed, which incorporated a Teflon ™ back-up ring to support the 3-piece Nitrile element. Brass and steel metal back-up shoes were also added. When Aflas ® was developed in the 1980's...

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