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1. WO2020117355 - TORQUE IMPACT MITIGATOR FOR POWER TONG

Publication Number WO/2020/117355
Publication Date 11.06.2020
International Application No. PCT/US2019/052561
International Filing Date 24.09.2019
IPC
E21B 19/16 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
19Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
16Connecting or disconnecting pipe couplings or joints
F16F 13/00 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
FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
13Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
CPC
E21B 19/161
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
19Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick
16Connecting or disconnecting pipe couplings or joints
161using a wrench or a spinner adapted to engage a circular section of pipe
E21B 19/166
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
19Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick
16Connecting or disconnecting pipe couplings or joints
165Control or monitoring arrangements therefor
166Arrangements of torque limiters or torque indicators
F16F 13/007
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
13Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
005comprising both a wound spring and a damper, e.g. a friction damper
007the damper being a fluid damper
F16F 2222/12
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
2222Special physical effects, e.g. nature of damping effects
12Fluid damping
F16F 2230/0005
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
2230Purpose; Design features
0005Attachment, e.g. to facilitate mounting onto confer adjustability
F16F 2232/08
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
2232Nature of movement
08Linear
Applicants
  • DAVIS, Truman, R. [US]/[US]
Inventors
  • DAVIS, Truman, R.
Agents
  • COHN, Howard, M.
Priority Data
16/208,76004.12.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TORQUE IMPACT MITIGATOR FOR POWER TONG
(FR) ATTÉNUATEUR D'IMPACT DE COUPLE POUR CLÉ DE VISSAGE AUTOMATIQUE
Abstract
(EN)
A torque impact mitigator including a housing assembly having a hydraulic cylinder. A piston is disposed within the hydraulic cylinder. A piston rod is mounted at a first end to the piston and having a second end extending out from the compression end. A compression spring is disposed between the piston and an end of the cylinder. A rod clevis is secured to the second end of the piston rod to compress the compression spring into a compressed state when the rod clevis is moved away from the cylinder and to release the compression spring into a relaxed state when the rod clevis is moved towards the cylinder. A plug is disposed within an upper end of the compression spring and having a bore extending therethrough to receive the piston rod. One or more bores are disposed through the piston to allow passage of hydraulic fluid into the hydraulic cylinder.
(FR)
L'invention concerne un atténuateur d'impact de couple comprenant un ensemble boîtier comportant un vérin hydraulique. Un piston est disposé à l'intérieur du vérin hydraulique. Une tige de piston est montée au niveau d'une première extrémité du piston et présente une seconde extrémité s'étendant hors de l'extrémité de compression. Un ressort de compression est disposé entre le piston et une extrémité du vérin. Une chape de tige, fixée à la seconde extrémité de la tige de piston, permet de comprimer le ressort de compression dans un état comprimé lorsque la chape de tige est éloignée du vérin et de libérer le ressort de compression dans un état relâché lorsque la chape de tige est déplacée vers le vérin. Un bouchon est disposé à l'intérieur d'une extrémité supérieure du ressort de compression et comporte un alésage s'étendant à travers ce dernier afin de recevoir la tige de piston. Un ou plusieurs alésages sont disposés à travers le piston afin de permettre le passage de fluide hydraulique dans le vérin hydraulique.
Also published as
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