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1. WO2020197560 - LATTICE FORMATION OF THERMOPLASTIC MATERIALS TO MODEL ELASTIC BEHAVIOR

Publication Number WO/2020/197560
Publication Date 01.10.2020
International Application No. PCT/US2019/024577
International Filing Date 28.03.2019
IPC
F16J 15/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
JPISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
15Sealings
02between relatively-stationary surfaces
F16J 15/3284 2016.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
JPISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
15Sealings
16between relatively-moving surfaces
32with elastic sealings, e.g. O-rings
3284characterised by their structure; Selection of materials
E21B 33/03 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
33Sealing or packing boreholes or wells
02Surface sealing or packing
03Well heads; Setting-up thereof
E21B 33/12 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
33Sealing or packing boreholes or wells
10in the borehole
12Packers; Plugs
E21B 17/10 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
17Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings
10Wear protectors; Centralising devices
E21B 23/06 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
23Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
06for setting packers
Applicants
  • HALLIBURTON ENERGY SERVICES, INC. [US]/[US]
Inventors
  • GLAESMAN, Chad William
  • FREENEY, Timothy Alan
Agents
  • BORLAND, Harold
  • TIDWELL, Mark
  • RAJ, Vinu
  • LAYE, Jade O.
  • BROWN, Randall C.
  • EDWARDS, Gary
  • HERDA, Alan
  • SUAREZ, Vera
  • HALBUR, Zachary
  • TU, Evert Uy
  • RODDY, Craig
  • BRYSON, Alan C.
  • FITE, Benjamin
  • WUSTENBERG, John W.
  • RICHARDSON, Scott
  • KRUEGER, Tenley
  • ROONEY, Thomas
  • SEDANO, Jason
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) LATTICE FORMATION OF THERMOPLASTIC MATERIALS TO MODEL ELASTIC BEHAVIOR
(FR) FORMATION DE TREILLIS DE MATÉRIAUX THERMOPLASTIQUES AFIN DE MODÉLISER UN COMPORTEMENT ÉLASTIQUE
Abstract
(EN)
A sealing assembly for use in a wellbore tool includes thermoplastic materials arranged in a lattice structure to provide a bulk elasticity on the order of elastomeric materials. The lattice structure permits an energizing element of the sealing assembly to deform sufficiently in the elastic range of the thermoplastic materials to provide repeatable sealing capabilities. The lattice structure may be constructed by additive manufacturing processes to include voids therein, which allow the thermoplastic members of the lattice to flex and bend. The energizing element may thereby exhibit a greater elasticity in bulk than the elasticity of the thermoplastic materials themselves. The lattice structure may be enclosed in an outer cover constructed of a polymeric, elastomeric or other material to facilitate the interaction between the seal assembly and the corresponding sealing surfaces of a downhole wellbore tool.
(FR)
L'invention concerne un ensemble d'étanchéité destiné à être utilisé dans un outil de puits de forage comprenant des matériaux thermoplastiques disposés selon une structure en treillis afin de fournir une élasticité à la pression sur l'ordre des matériaux élastomères. La structure en treillis permet à un élément d'excitation de l'ensemble d'étanchéité de se déformer suffisamment dans la plage élastique des matériaux thermoplastiques afin de fournir des capacités d'étanchéité reproductibles. La structure en treillis peut être construite par des procédés de fabrication additive afin d'y inclure des vides, qui permettent aux éléments thermoplastiques du treillis de fléchir et de se tordre. L'élément d'excitation peut ainsi présenter une élasticité à la pression supérieure à l'élasticité des matériaux thermoplastiques eux-mêmes. La structure en treillis peut être enfermée dans un revêtement extérieur constitué d'un matériau polymère, élastomère ou autre afin de faciliter l'interaction entre l'ensemble d'étanchéité et les surfaces d'étanchéité correspondantes d'un outil de puits de forage de fond de trou.
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