Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Barrington; Burchus Q.
Address:
Duncan, OK
No. of patents:
39
Patents:












Patent Number Title Of Patent Date Issued
5337826 Tester valve August 16, 1994
A reciprocating full flow tester valve is provided with a shock absorber and tolerance adjustment device for absorbing an impact between a power mandrel of the tool and an operating assembly of the tool. An improved hydraulic impedance system is also provided for providing a time delay i
5297629 Drill stem testing with tubing conveyed perforation March 29, 1994
A well test string includes an annulus pressure responsive tester valve and a tubing conveyed perforating gun including a tubing pressure actuated time delay firing mechanism. A compression set packer is disposed in the test string between the tester valve and the perforating gun. The pa
5228516 Tester valve July 20, 1993
A reciprocating full flow tester valve is provided with a shock absorber and tolerance adjustment device for absorbing an impact between a power mandrel of the tool and an operating assembly of the tool. An improved hydraulic impedance system is also provided for providing a time delay i
5209303 Compressible liquid mechanism for downhole tool May 11, 1993
An annulus pressure responsive downhole tool includes a housing with a power piston slidably disposed therein. First and second pressure conducting passages communicate a well annulus exterior of the housing with first and second sides of the power piston. A flow restrictor is dispos
5138313 Electrically insulative gap sub assembly for tubular goods August 11, 1992
An electrically insulative gap sub for inclusion in a drill string that consists of upper and lower threaded joint members, an inner sleeve connected to extend axially from the upper joint member, an outer sleeve connected to the lower joint member and extending in concentric spacing
5133419 Hydraulic shock absorber with nitrogen stabilizer July 28, 1992
A shock absorber device for inclusion in a tool string to provide rapid shock dissipation for shock forces traveling up or down the string. The device includes a tubular mandrel and an outer casing that forms an annular chamber therearound. At least one annular piston and one or more
5083623 Hydraulic shock absorber January 28, 1992
A shock absorber apparatus for inclusion in a tool string which consists of outer and inner casings telescopically assembled with one casing having an uphole threaded joint member and the other casing having a downhole threaded joint member. The concentric casings then define spaced, sea
4928520 Plug release indicator May 29, 1990
A plug release indicator is provided which includes an elastomeric probe, with a wire embedded therein, which extends into the interior area of a plug housing or well casing. The wire has a lip at one end and an anchor at the other end, such that when a cementing plug contacts and deflec
4801160 High-pressure fluid flow connector January 31, 1989
A quick-connection type connector is disclosed for the coupling of high-pressure fluid flow lines, which connector utilizes an externally threaded female portion and a tapered male portion with a rotatable collar mounted thereon. Elastomeric seal means are provided as well as a metal
4673890 Well bore measurement tool June 16, 1987
A caliper is mounted on two springs in a free-floating manner between interlockable upper and lower packers to be set in a well bore. The caliper has radially extendible arms which are extendible in response to independent forces exerted thereon as derived from the movement of a carr
4669539 Lock for downhole apparatus June 2, 1987
A lock, particularly suitable for locking a top packer against upward movement relative to a lower packer in a well bore, includes a radially movable latch member slidably mounted in a radial cavity defined in an inner mandrel which is movable relative to an outer member to which the
4646829 Hydraulically set and released bridge plug March 3, 1987
A bridge plug apparatus includes a mandrel assembly having an operating fluid passageway disposed therein. A releasable coupling assembly has an upper end adapted to be connected to a tubing string and has a lower portion adapted to be releasably connected to the mandrel assembly. An
4624317 Well tool with improved valve support structure November 25, 1986
A well testing tool includes a housing adapted to be connected to a well test string and having a substantially open bore therethrough. A valve assembly is disposed in the housing and includes a spherical valve member having a substantially open valve bore therethrough and includes upper
4582140 Well tool with selective bypass functions April 15, 1986
A downhole tool such as a formation tester valve which provides a bypass while allowing a choice of several possible functions of this bypass to be made by rearrangement of the parts of the tool. In a first arrangement, a bypass is provided which is open while the tool is run into the we
4579174 Well tool with hydraulic time delay April 1, 1986
A well tool apparatus includes a housing adapted to be connected in a pipe string. A mandrel is slidably received in the housing and adapted to be selectively telescoped between first and second positions relative to the housing to manipulate an operating assembly of the apparatus. The m
4522266 Downhole tester valve with resilient seals June 11, 1985
A downhole tool apparatus includes an improved full opening ball valve structure having seat assemblies with replaceable resilient seats, which assemblies are supported within the tool by an adjustable supporting structure.
4448254 Tester valve with silicone liquid spring May 15, 1984
A flow tester valve apparatus includes a housing having a flow passage disposed therethrough with a flow valve disposed therein for opening and closing the flow passage. A power mandrel is disposed in the housing and includes a power piston. The power mandrel is operatively associated wi
4444268 Tester valve with silicone liquid spring April 24, 1984
A flow tester valve apparatus includes a housing having a flow passage disposed therethrough with a flow valve disposed therein for opening and closing the flow passage. A power mandrel is disposed in the housing and includes a power piston. The power mandrel is operatively associated wi
4378850 Hydraulic fluid supply apparatus and method for a downhole tool April 5, 1983
A hydraulic fluid supply apparatus for a downhole tool includes a first annular zone adapted to be filled with hydraulic oil and a second annular zone adapted to be filled with a pressurized second fluid. The first and second zones are separated by a floating annular piston for transmitt
4375239 Acoustic subsea test tree and method March 1, 1983
A subsea test tree includes a body having a flow passage therethrough. A closure valve is movable between open and closed positions for opening and closing the flow passage. A signal receiver of the subsea test tree receives an acoustic command signal transmitted down a pipe string c
4374583 Sleeve valve February 22, 1983
An oil filled sliding sleeve type valve comprising a valve body housing, sleeve assembly and actuation assembly.
4372392 Full opening emergency relief and safety valve February 8, 1983
A full opening emergency release and safety valve includes a valve housing having a flow passage therethrough and adapted to be connected to a lower portion of a tubing string. A full opening ball valve is disposed in the valve housing for opening and closing the flow passage. A stinger
4372391 Screw operated emergency relief and safety valve February 8, 1983
A screw operated emergency release and safety valve includes a valve housing having a flow passage therethrough and adapted to be connected to a lower portion of a tubing string. A full opening ball valve is disposed in the valve housing for opening and closing the flow passage. A stinge
4347900 Hydraulic connector apparatus and method September 7, 1982
A hydraulic connector apparatus includes a first cylindrical tubular member having a first hydraulic port disposed in a radially outer surface thereof, and a second cylindrical tubular member having a second hydraulic port disposed in a radially inner surface thereof. A first cylindrical
4319634 Drill pipe tester valve March 16, 1982
A drill pipe tester valve includes a spherical valve member supported from an upward facing surface of a housing so that downward forces exerted on the valve member in its closed position, due to fluid pressure in a string of pipe above the valve member, are transmitted substantially ent
4319633 Drill pipe tester and safety valve March 16, 1982
A drill pipe tester valve includes a spherical valve member supported from an upward facing surface of a housing so that downward forces exerted on the valve member in its closed position, due to fluid pressure in a string of pipe above the valve member, are transmitted substantially ent
4270610 Annulus pressure operated closure valve with improved power mandrel June 2, 1981
A testing apparatus for use in an oil well includes an improved power mandrel and power mandrel restraining portion. The power mandrel is disposed in a cylindrical housing having an open bore therethrough and a power port and a circulating port through the walls thereof. The power ma
4116272 Subsea test tree for oil wells September 26, 1978
A hydraulically operated subsea test tree is disclosed for placement in a blowout preventer stack position on a sea floor above an oil well wherein fluid pressure from one side a set of rams is directed to a first side of a ball valve operating piston, and fluid pressure on the second si
4113018 Oil well testing safety valve September 12, 1978
A valve for use in conjunction with a testing string in an oil well is disclosed in which the valve is maintained in the open position until the valve is placed in sufficient compression to collapse any slip joint which also appears in the testing string. A pressure piston is present in
4109724 Oil well testing valve with liquid spring August 29, 1978
A testing valve and its method of operation is disclosed for use in testing an oil well formation wherein the valve includes a liquid spring and operating means for operating the valve responsive to changes in the well annulus pressure. Volume adjusting mechanisms are also disclosed for
4083409 Full flow bypass valve April 11, 1978
A full flow bypass valve comprising mutually telescoping inner mandrel and outer housing members with hydraulic impedance means therebetween to provide a predetermined time delay when the members are relatively telescoped in a first direction and to provide substantially unrestricted
4076077 Weight and pressure operated well testing apparatus and its method of operation February 28, 1978
A method and apparatus are presented which are particularly useful in testing the production capabilities of offshore oil wells. The apparatus includes a normally closed, weight operated valve which opens a preset delay after the weight operated valve is subjected to sufficient weight
4064937 Annulus pressure operated closure valve with reverse circulation valve December 27, 1977
A closure valve for use in oil well testing is presented which provides a full opening flow passage therethrough, and which includes a reverse circulation valve. The closure valve is operated by a power mandrel which is responsive to well annulus pressure, and which is frangibly held in
4060140 Method and apparatus for preventing debris build-up in underwater oil wells November 29, 1977
An improved method and apparatus for preventing buildup of cuttings or debris in underwater oil wells. The apparatus includes a drilling tool in the form of a primary tubular member having an internal diameter a predetermined amount greater than the external diameter of a drill string
4059153 Weight and pressure operated well testing apparatus and its method of operation November 22, 1977
A method and apparatus are presented which are particularly useful in testing the production capabilities of offshore oil wells. The apparatus includes a normally closed, weight operated valve which opens a preset delay after the weight operated valve is subjected to sufficient weight
4047564 Weight and pressure operated well testing apparatus and its method of operation September 13, 1977
A method and apparatus are presented which are particularly useful in testing the production capabilities of offshore oil wells. The apparatus includes a normally closed, weight operated valve which opens a preset delay after the weight operated valve is subjected to sufficient weight
3981188 Method and apparatus for testing wells September 21, 1976
Method and apparatus for testing wells where extremely high temperatures and pressures are to be encountered in the zone under test. The apparatus provides means for testing and trapping samples of well fluid from the formation in the zone under test for removal from the well bore with
3969937 Method and apparatus for testing wells July 20, 1976
Method and apparatus for testing wells where extremely high temperatures and pressures are to be encountered in the zone under test. The apparatus provides means for testing and trapping samples of well fluid from the formation in the zone under test for removal from the well bore with
3964544 Pressure operated isolation valve for use in a well testing and treating apparatus, and its meth June 22, 1976
In a well testing tool having a spring whose biasing force is supplemented by the hydrostatic pressure in the well annulus at the testing depth, a method and apparatus for isolating the spring from the pressure in the well annulus utilizing the pressure differential between the well annu










 
 
  Recently Added Patents
Error recovery storage along a memory string
Lithographic apparatus and device manufacturing method
Digital fine delay processing
Automatic search system and method
Method and apparatus for determining the altitude of a mobile device
Food safety printer
Motion estimation for a video transcoder
  Randomly Featured Patents
Differential pressure pickup
Method for mounting food, and apparatus therefor
Bottle opener
Thermal printer
Process for the preparation of diaryl carbonates
Angiographic catheter with unitary body and tip sections and method for making same from a continuous feedstock
Combination cosmetic purse and display package
Fluid dose, flow and coagulation sensor for medical instrument
3-(substituted phenyl)phthalides
Ninhydrin and ionic liquid reagent mixture and method for the visualization of amino acids and peptides