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Class 166/209 - Set by wedge or cam at any point by drop only (e.g., tubing catcher)


Subclass of Class 166 - Wells
Definition: Devices in which setting the outwardly movable means by
No. of patents: 13
Last issue date: 09/06/2011


NumberTitleIssue Date
8011428Downhole decelerating device, system and method
Disclosed herein is a decelerating device. The device includes, a body movably engagable within a tubular, a mandrel longitudinally movably disposed at the body, and at least one deceleration element disposed at the body in operable communication with the mandrel su...
09/06/2011
7237615Casing mandrel with well stimulation tool and tubing head spool for use with the casing mandrel
A casing mandrel for an independent screwed wellhead includes a pin thread adapted for engagement with a box thread of a well stimulation tool lockdown nut for securing the well stimulation tool against the casing mandrel top end. A well stimulation tool and a tubin...
07/03/2007
7066269Casing mandrel with well stimulation tool and tubing head spool for use with the casing mandrel
A casing mandrel for an independent screwed wellhead includes a pin thread adapted for engagement with a box thread of a well stimulation tool lockdown nut for securing the well stimulation tool against the casing mandrel top end. A well stimulation tool and a tubin...
06/27/2006
6823938Locator and holddown tool for casing hanger running tool
A tool is used for installing a string of casing in a well. The casing is supported by a casing hanger that lands on a landing shoulder of the wellhead assembly. A running mechanism is releasably secured to the casing hanger for landing the casing hanger and setting...
11/30/2004
6152219Downhole pulling tool
A downhole pulling tool (100) for retrieving downhole devices (102, 104) from a wellbore is disclosed. The downhole pulling tool (100) includes a mandrel (106) and a sleeve (108) that is slidably disposed about the mandrel (106). The sleeve (108) is movea...
11/28/2000
6145602Downhole tool catcher and method
A downhole tool catcher which includes a bottom hole assembly formed of an inner tubular in an outer tubular, an external housing connected to the outer tubular, and a washpipe extending from the inner tubular into the external housing, the washpipe havin...
11/14/2000
6041859Anti-rotation device
An anti-rotation device for use with concentric tubing hangers is disclosed. The anti-rotation device can be used as part of the emergency release system that provides for manually releasing and removing the tubing hanger running tool in the event the hyd...
03/28/2000
5992801Pipe gripping assembly and method
A primary pipe gripping mechanism and a backup, secondary pipe gripping mechanism are carried in a single tapered slip bowl. The primary gripping mechanism employs smooth surface pipe dies that set against and grip and hold the pipe without damaging the p...
11/30/1999
5732909Pipe gripping system and method
A slip die with a substantially smooth pipe contact surface is employed in a conventional slip assembly as a primary mechanism for gripping pipe. A second conventional slip assembly with conventional dies having penetrating die teeth on their contact surf...
03/31/1998
4900041Subsea well casing hanger packoff system
An improved metal-to-metal seal packoff system for establishing a high pressure metallic barrier between concentric tubular elements, such as a wellhead housing and a casing hanger, including a seal element with a pair of annular metal sealing lips that a...
02/13/1990
4595053Metal-to-metal seal casing hanger
A hanger for hanging a string of conduit within a wellhead has a metal-to-metal seal. The hanger has a body that locates within the wellhead and provides an annular clearance between the body and the wellhead. A locking device fits within this clearance t...
06/17/1986
4122899Well perforator with anchor and method
A cased borehole has a tubing string run downhole thereof. A packer affixed to the tubing is set with the tubing string terminating in proximity of a hydrocarbon producing formation to be completed. A wireline operated perforating gun is suspended from a ...
10/31/1978
4042019Wireline actuated tubing cutter
An apparatus adapted to be run into a well on a wireline for explosively cutting tubing having an explosive cutting member mounted with a body member connected to the wireline, a settable hanging member for securing the body member within the bore of the ...
08/16/1977
 
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