US3123160A
(en)
*
|
|
1964-03-03 |
|
Retrievable subsurface well bore apparatus |
US179973A
(en)
|
|
1876-07-18 |
|
Improvement in tubing-clutches |
US3124023A
(en)
*
|
|
1964-03-10 |
|
Dies for pipe and tubing tongs |
US122514A
(en)
*
|
|
1872-01-09 |
|
Improvement in rock-drills |
US3006415A
(en)
|
|
1961-10-31 |
|
Cementing apparatus |
US1077772A
(en)
|
1913-01-25 |
1913-11-04 |
Fred Richard Weathersby |
Drill.
|
US1185582A
(en)
|
1914-07-13 |
1916-05-30 |
Edward Bignell |
Pile.
|
US1301285A
(en)
|
1916-09-01 |
1919-04-22 |
Frank W A Finley |
Expansible well-casing.
|
US1342424A
(en)
|
1918-09-06 |
1920-06-08 |
Shepard M Cotten |
Method and apparatus for constructing concrete piles
|
US1386908A
(en)
|
1920-03-12 |
1921-08-09 |
Taylor William Henry |
Rotary well-drilling machine
|
US1414207A
(en)
*
|
1920-07-06 |
1922-04-25 |
Frank E Reed |
Shaft coupling
|
US1471526A
(en)
|
1920-07-19 |
1923-10-23 |
Rowland O Pickin |
Rotary orill bit
|
US1398551A
(en)
*
|
1920-08-02 |
1921-11-29 |
Gustaf W Hanson |
Boring-drill
|
US1418766A
(en)
|
1920-08-02 |
1922-06-06 |
Guiberson Corp |
Well-casing spear
|
US1518634A
(en)
*
|
1923-06-29 |
1924-12-09 |
Jr Dick Kendall Cason |
Safety clutch for drill stems
|
US1648158A
(en)
*
|
1923-07-24 |
1927-11-08 |
Wilson William Webster |
Hoisting tackle
|
US1601369A
(en)
*
|
1924-02-25 |
1926-09-28 |
Titusville Forge Company |
Elevator for well casings
|
US1585069A
(en)
|
1924-12-18 |
1926-05-18 |
William E Youle |
Casing spear
|
US1725902A
(en)
*
|
1925-03-30 |
1929-08-27 |
Dennis L Driscoll |
Universal hanger for well-drilling tools
|
US1728136A
(en)
|
1926-10-21 |
1929-09-10 |
Lewis E Stephens |
Casing spear
|
US1830625A
(en)
|
1927-02-16 |
1931-11-03 |
George W Schrock |
Drill for oil and gas wells
|
US1805007A
(en)
|
1927-12-27 |
1931-05-12 |
Elmer C Pedley |
Pipe coupling apparatus
|
US1708378A
(en)
*
|
1928-04-09 |
1929-04-09 |
Lester C Nielson |
Rotary friction coupling
|
US1777592A
(en)
|
1929-07-08 |
1930-10-07 |
Thomas Idris |
Casing spear
|
US1998833A
(en)
|
1930-03-17 |
1935-04-23 |
Baker Oil Tools Inc |
Cementing guide
|
US1825026A
(en)
|
1930-07-07 |
1931-09-29 |
Thomas Idris |
Casing spear
|
US1842638A
(en)
|
1930-09-29 |
1932-01-26 |
Wilson B Wigle |
Elevating apparatus
|
US1880218A
(en)
|
1930-10-01 |
1932-10-04 |
Richard P Simmons |
Method of lining oil wells and means therefor
|
US1917135A
(en)
|
1932-02-17 |
1933-07-04 |
Littell James |
Well apparatus
|
US2105885A
(en)
|
1932-03-30 |
1938-01-18 |
Frank J Hinderliter |
Hollow trip casing spear
|
US2049450A
(en)
|
1933-08-23 |
1936-08-04 |
Macclatchie Mfg Company |
Expansible cutter tool
|
US2017451A
(en)
|
1933-11-21 |
1935-10-15 |
Baash Ross Tool Co |
Packing casing bowl
|
US1981525A
(en)
|
1933-12-05 |
1934-11-20 |
Bailey E Price |
Method of and apparatus for drilling oil wells
|
US2060352A
(en)
|
1936-06-20 |
1936-11-10 |
Reed Roller Bit Co |
Expansible bit
|
US2128430A
(en)
|
1937-02-08 |
1938-08-30 |
Elmer E Pryor |
Fishing tool
|
US2167338A
(en)
|
1937-07-26 |
1939-07-25 |
U C Murcell Inc |
Welding and setting well casing
|
US2184681A
(en)
|
1937-10-26 |
1939-12-26 |
George W Bowen |
Grapple
|
US2214194A
(en)
|
1938-10-10 |
1940-09-10 |
Frankley Smith Mfg Co |
Fluid control device
|
US2216895A
(en)
|
1939-04-06 |
1940-10-08 |
Reed Roller Bit Co |
Rotary underreamer
|
US2228503A
(en)
*
|
1939-04-25 |
1941-01-14 |
Boyd |
Liner hanger
|
US2214429A
(en)
|
1939-10-24 |
1940-09-10 |
William J Miller |
Mud box
|
GB540027A
(en)
|
1940-04-26 |
1941-10-02 |
Percy Cox |
Improvements in and relating to rock boring and like tools
|
US2324679A
(en)
|
1940-04-26 |
1943-07-20 |
Cox Nellie Louise |
Rock boring and like tool
|
US2305062A
(en)
|
1940-05-09 |
1942-12-15 |
C M P Fishing Tool Corp |
Cementing plug
|
US2295803A
(en)
|
1940-07-29 |
1942-09-15 |
Charles M O'leary |
Cement shoe
|
US2370832A
(en)
*
|
1941-08-19 |
1945-03-06 |
Baker Oil Tools Inc |
Removable well packer
|
US2379800A
(en)
|
1941-09-11 |
1945-07-03 |
Texas Co |
Signal transmission system
|
US2354217A
(en)
*
|
1941-12-09 |
1944-07-25 |
Byron Jackson Co |
Elevator device
|
US2414719A
(en)
|
1942-04-25 |
1947-01-21 |
Stanolind Oil & Gas Co |
Transmission system
|
US2536483A
(en)
*
|
1944-07-29 |
1951-01-02 |
Nat Supply Co |
Consolidated rig
|
US2522444A
(en)
|
1946-07-20 |
1950-09-12 |
Donovan B Grable |
Well fluid control
|
US2641444A
(en)
|
1946-09-03 |
1953-06-09 |
Signal Oil & Gas Co |
Method and apparatus for drilling boreholes
|
US2499630A
(en)
*
|
1946-12-05 |
1950-03-07 |
Paul B Clark |
Casing expander
|
US2668689A
(en)
|
1947-11-07 |
1954-02-09 |
C & C Tool Corp |
Automatic power tongs
|
US2570080A
(en)
|
1948-05-01 |
1951-10-02 |
Standard Oil Dev Co |
Device for gripping pipes
|
US2633333A
(en)
|
1948-05-17 |
1953-03-31 |
Lynn W Storm |
Pipe spinner
|
US2621742A
(en)
|
1948-08-26 |
1952-12-16 |
Cicero C Brown |
Apparatus for cementing well liners
|
US2536458A
(en)
|
1948-11-29 |
1951-01-02 |
Theodor R Munsinger |
Pipe rotating device for oil wells
|
US2595902A
(en)
|
1948-12-23 |
1952-05-06 |
Standard Oil Dev Co |
Spinner elevator for pipe
|
US2720267A
(en)
|
1949-12-12 |
1955-10-11 |
Cicero C Brown |
Sealing assemblies for well packers
|
US2582987A
(en)
*
|
1950-01-26 |
1952-01-22 |
Goodman Mfg Co |
Power winch or hoist
|
US2610690A
(en)
|
1950-08-10 |
1952-09-16 |
Guy M Beatty |
Mud box
|
US2666689A
(en)
|
1950-08-21 |
1954-01-19 |
Monsanto Chemicals |
Process for the production of hydrocyanic acid
|
US2627891A
(en)
*
|
1950-11-28 |
1953-02-10 |
Paul B Clark |
Well pipe expander
|
US2743495A
(en)
|
1951-05-07 |
1956-05-01 |
Nat Supply Co |
Method of making a composite cutter
|
GB716761A
(en)
|
1952-01-29 |
1954-10-13 |
Standard Oil Dev Co |
Improvements in or relating to drill assemblies
|
GB709365A
(en)
|
1952-01-29 |
1954-05-19 |
Standard Oil Dev Co |
Improvements in or relating to drill assemblies
|
US2765146A
(en)
|
1952-02-09 |
1956-10-02 |
Jr Edward B Williams |
Jetting device for rotary drilling apparatus
|
US2805043A
(en)
|
1952-02-09 |
1957-09-03 |
Jr Edward B Williams |
Jetting device for rotary drilling apparatus
|
US2650314A
(en)
|
1952-02-12 |
1953-08-25 |
George W Hennigh |
Special purpose electric motor
|
US2764329A
(en)
|
1952-03-10 |
1956-09-25 |
Lucian W Hampton |
Load carrying attachment for bicycles, motorcycles, and the like
|
US2633339A
(en)
|
1952-03-13 |
1953-03-31 |
George J Okulitch |
Immersion type agitator and the like
|
US2663073A
(en)
|
1952-03-19 |
1953-12-22 |
Acrometal Products Inc |
Method of forming spools
|
US2743087A
(en)
|
1952-10-13 |
1956-04-24 |
Layne |
Under-reaming tool
|
US2738011A
(en)
*
|
1953-02-17 |
1956-03-13 |
Thomas S Mabry |
Means for cementing well liners
|
US2741907A
(en)
|
1953-04-27 |
1956-04-17 |
Genender Louis |
Locksmithing tool
|
US2692059A
(en)
|
1953-07-15 |
1954-10-19 |
Standard Oil Dev Co |
Device for positioning pipe in a drilling derrick
|
GB792886A
(en)
|
1956-04-13 |
1958-04-02 |
Fritz Huntsinger |
Well pipe and flexible joints therefor
|
US2965177A
(en)
|
1957-08-12 |
1960-12-20 |
Wash Overshot And Spear Engine |
Fishing tool apparatus
|
US2978047A
(en)
|
1957-12-03 |
1961-04-04 |
Vaan Walter H De |
Collapsible drill bit assembly and method of drilling
|
US3021739A
(en)
|
1957-12-23 |
1962-02-20 |
Joy Mfg Co |
Hydraulically controlled and operated power tong
|
US3054100A
(en)
|
1958-06-04 |
1962-09-11 |
Gen Precision Inc |
Signalling system
|
US3159219A
(en)
|
1958-05-13 |
1964-12-01 |
Byron Jackson Inc |
Cementing plugs and float equipment
|
US2950639A
(en)
|
1958-08-11 |
1960-08-30 |
Mason Carlton Tool Co |
Power operated pipe wrench
|
US3087546A
(en)
|
1958-08-11 |
1963-04-30 |
Brown J Woolley |
Methods and apparatus for removing defective casing or pipe from well bores
|
GB838833A
(en)
|
1958-08-25 |
1960-06-22 |
Archer William Kammerer |
Expansible rotary drill bit
|
US2953406A
(en)
|
1958-11-24 |
1960-09-20 |
A D Timmons |
Casing spear
|
US3041901A
(en)
|
1959-05-20 |
1962-07-03 |
Dowty Rotol Ltd |
Make-up and break-out mechanism for drill pipe joints
|
US3090031A
(en)
|
1959-09-29 |
1963-05-14 |
Texaco Inc |
Signal transmission system
|
GB881358A
(en)
|
1960-02-12 |
1961-11-01 |
Archer William Kammerer |
Retrievable drilling apparatus for bore holes
|
US3131586A
(en)
|
1960-05-11 |
1964-05-05 |
Wilson John Hart |
Mechanism for making up and breaking out screw threaded joints of drill stem and pipe
|
US3117636A
(en)
*
|
1960-06-08 |
1964-01-14 |
John L Wilcox |
Casing bit with a removable center
|
US3111179A
(en)
|
1960-07-26 |
1963-11-19 |
A And B Metal Mfg Company Inc |
Jet nozzle
|
US3086413A
(en)
|
1960-08-22 |
1963-04-23 |
Mason Carlton Tool Co |
Power operated pipe wrench and spinning means
|
US3180186A
(en)
|
1961-08-01 |
1965-04-27 |
Byron Jackson Inc |
Power pipe tong with lost-motion jaw adjustment means
|
BE621348A
(fr)
|
1961-08-25 |
|
|
|
US3102599A
(en)
|
1961-09-18 |
1963-09-03 |
Continental Oil Co |
Subterranean drilling process
|
US3191680A
(en)
|
1962-03-14 |
1965-06-29 |
Pan American Petroleum Corp |
Method of setting metallic liners in wells
|
US3131769A
(en)
|
1962-04-09 |
1964-05-05 |
Baker Oil Tools Inc |
Hydraulic anchors for tubular strings
|
US3122811A
(en)
|
1962-06-29 |
1964-03-03 |
Lafayette E Gilreath |
Hydraulic slip setting apparatus
|
US3266582A
(en)
|
1962-08-24 |
1966-08-16 |
Leyman Corp |
Drilling system
|
US3169592A
(en)
*
|
1962-10-22 |
1965-02-16 |
Lamphere Jean K |
Retrievable drill bit
|
US3193116A
(en)
|
1962-11-23 |
1965-07-06 |
Exxon Production Research Co |
System for removing from or placing pipe in a well bore
|
US3191683A
(en)
*
|
1963-01-28 |
1965-06-29 |
Ford I Alexander |
Control of well pipe rotation and advancement
|
US3220245A
(en)
|
1963-03-25 |
1965-11-30 |
Baker Oil Tools Inc |
Remotely operated underwater connection apparatus
|
US3191677A
(en)
|
1963-04-29 |
1965-06-29 |
Myron M Kinley |
Method and apparatus for setting liners in tubing
|
NL6411125A
(fr)
*
|
1963-09-25 |
1965-03-26 |
|
|
GB1087137A
(en)
|
1963-10-25 |
1967-10-11 |
F N R D Ltd |
Improvements relating to twist joints
|
US3305021A
(en)
*
|
1964-06-11 |
1967-02-21 |
Schlumberger Technology Corp |
Pressure-responsive anchor for well packing apparatus
|
US3353599A
(en)
|
1964-08-04 |
1967-11-21 |
Gulf Oil Corp |
Method and apparatus for stabilizing formations
|
US3368396A
(en)
|
1964-09-14 |
1968-02-13 |
Exxon Production Research Co |
Assembling pipe strings with leak-tight joints
|
US3321018A
(en)
*
|
1964-10-07 |
1967-05-23 |
Schlumberger Technology Corp |
Well tool retrieving apparatus
|
DE1216822B
(de)
|
1965-03-27 |
1966-05-18 |
Beteiligungs & Patentverw Gmbh |
Streckenvortriebsmaschine
|
US3380528A
(en)
|
1965-09-24 |
1968-04-30 |
Tri State Oil Tools Inc |
Method and apparatus of removing well pipe from a well bore
|
US3419079A
(en)
|
1965-10-23 |
1968-12-31 |
Schlumberger Technology Corp |
Well tool with expansible anchor
|
US3349455A
(en)
|
1966-02-01 |
1967-10-31 |
Jack R Doherty |
Drill collar safety slip
|
US3392609A
(en)
|
1966-06-24 |
1968-07-16 |
Abegg & Reinhold Co |
Well pipe spinning unit
|
US3420344A
(en)
*
|
1967-03-22 |
1969-01-07 |
Twin Disc Inc |
Self-stabilizing power transmitting device having hydraulically actuated friction plates and torque responsive hydraulic inverse feedback
|
US3477527A
(en)
|
1967-06-05 |
1969-11-11 |
Global Marine Inc |
Kelly and drill pipe spinner-stabber
|
US3443291A
(en)
|
1967-09-25 |
1969-05-13 |
Jack R Doherty |
Drill collar safety slip
|
US3635105A
(en)
|
1967-10-17 |
1972-01-18 |
Byron Jackson Inc |
Power tong head and assembly
|
GB1215967A
(en)
|
1967-12-04 |
1970-12-16 |
Byron Jackson Inc |
Well pipe tongs
|
US3518903A
(en)
|
1967-12-26 |
1970-07-07 |
Byron Jackson Inc |
Combined power tong and backup tong assembly
|
US3475038A
(en)
|
1968-01-08 |
1969-10-28 |
Lee Matherne |
Pipe stabber with setscrews
|
GB1277461A
(en)
|
1968-06-05 |
1972-06-14 |
Wadsworth Walton Mount |
Method and apparatus for joining ends of pipe sections by driven force fit and joints formed thereby
|
US3489220A
(en)
|
1968-08-02 |
1970-01-13 |
J C Kinley |
Method and apparatus for repairing pipe in wells
|
US3511349A
(en)
*
|
1968-08-30 |
1970-05-12 |
Deere & Co |
Clutch
|
US3548936A
(en)
|
1968-11-15 |
1970-12-22 |
Dresser Ind |
Well tools and gripping members therefor
|
US3747675A
(en)
|
1968-11-25 |
1973-07-24 |
C Brown |
Rotary drive connection for casing drilling string
|
US3552507A
(en)
|
1968-11-25 |
1971-01-05 |
Cicero C Brown |
System for rotary drilling of wells using casing as the drill string
|
FR1604950A
(fr)
|
1968-12-31 |
1971-05-15 |
|
|
US3575245A
(en)
|
1969-02-05 |
1971-04-20 |
Servco Co |
Apparatus for expanding holes
|
US3552508A
(en)
|
1969-03-03 |
1971-01-05 |
Cicero C Brown |
Apparatus for rotary drilling of wells using casing as the drill pipe
|
US3745820A
(en)
|
1969-04-04 |
1973-07-17 |
Exxon Production Research Co |
Leak proof threaded connections
|
US3606664A
(en)
|
1969-04-04 |
1971-09-21 |
Exxon Production Research Co |
Leak-proof threaded connections
|
US3570598A
(en)
|
1969-05-05 |
1971-03-16 |
Glenn D Johnson |
Constant strain jar
|
US3550684A
(en)
|
1969-06-03 |
1970-12-29 |
Schlumberger Technology Corp |
Methods and apparatus for facilitating the descent of well tools through deviated well bores
|
US3566505A
(en)
|
1969-06-09 |
1971-03-02 |
Hydrotech Services |
Apparatus for aligning two sections of pipe
|
US3559739A
(en)
|
1969-06-20 |
1971-02-02 |
Chevron Res |
Method and apparatus for providing continuous foam circulation in wells
|
DE1937349B2
(de)
|
1969-07-23 |
1973-08-23 |
Leo Gottwald KG, 4000 Dusseldorf |
Kranfahrzeug mit drehbarem oberwagen
|
US3552509A
(en)
|
1969-09-11 |
1971-01-05 |
Cicero C Brown |
Apparatus for rotary drilling of wells using casing as drill pipe
|
US3603413A
(en)
|
1969-10-03 |
1971-09-07 |
Christensen Diamond Prod Co |
Retractable drill bits
|
US3552510A
(en)
|
1969-10-08 |
1971-01-05 |
Cicero C Brown |
Apparatus for rotary drilling of wells using casing as the drill pipe
|
US3624760A
(en)
|
1969-11-03 |
1971-11-30 |
Albert G Bodine |
Sonic apparatus for installing a pile jacket, casing member or the like in an earthen formation
|
US3602302A
(en)
|
1969-11-10 |
1971-08-31 |
Westinghouse Electric Corp |
Oil production system
|
BE757087A
(fr)
|
1969-12-03 |
1971-04-06 |
Gardner Denver Co |
Mecanisme de devissage de tiges de forage commande a distance
|
US3691624A
(en)
|
1970-01-16 |
1972-09-19 |
John C Kinley |
Method of expanding a liner
|
US3603411A
(en)
|
1970-01-19 |
1971-09-07 |
Christensen Diamond Prod Co |
Retractable drill bits
|
US3603412A
(en)
|
1970-02-02 |
1971-09-07 |
Baker Oil Tools Inc |
Method and apparatus for drilling in casing from the top of a borehole
|
US3638989A
(en)
|
1970-02-05 |
1972-02-01 |
Becker Drills Ltd |
Apparatus for recovering a drill stem
|
US3662842A
(en)
|
1970-04-14 |
1972-05-16 |
Automatic Drilling Mach |
Automatic coupling system
|
US3696332A
(en)
|
1970-05-25 |
1972-10-03 |
Shell Oil Co |
Telemetering drill string with self-cleaning connectors
|
US3808916A
(en)
|
1970-09-24 |
1974-05-07 |
Robbins & Ass J |
Earth drilling machine
|
US3656564A
(en)
|
1970-12-03 |
1972-04-18 |
Cicero C Brown |
Apparatus for rotary drilling of wells using casing as the drill pipe
|
US3669190A
(en)
|
1970-12-21 |
1972-06-13 |
Otis Eng Corp |
Methods of completing a well
|
US3692126A
(en)
|
1971-01-29 |
1972-09-19 |
Frank C Rushing |
Retractable drill bit apparatus
|
US3780883A
(en)
|
1971-03-18 |
1973-12-25 |
Brown Oil Tools |
Pipe handling system for use in well drilling
|
US3706347A
(en)
|
1971-03-18 |
1972-12-19 |
Cicero C Brown |
Pipe handling system for use in well drilling
|
US3697113A
(en)
|
1971-03-25 |
1972-10-10 |
Gardner Denver Co |
Drill rod retrieving tool
|
US3766991A
(en)
|
1971-04-02 |
1973-10-23 |
Brown Oil Tools |
Electric power swivel and system for use in rotary well drilling
|
US3785193A
(en)
*
|
1971-04-10 |
1974-01-15 |
Kinley J |
Liner expanding apparatus
|
US3838613A
(en)
|
1971-04-16 |
1974-10-01 |
Byron Jackson Inc |
Motion compensation system for power tong apparatus
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1971-06-21 |
1973-03-27 |
Ipcur Inst De Proiectari Cerce |
Torque-controlled pipe-thread tightener
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1971-10-28 |
1973-07-17 |
W Taciuk |
Drill stem shock absorber
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GB1306568A
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1971-11-09 |
1973-02-14 |
Fox F K |
Rotary drilling tool for use in well bores
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1971-11-10 |
1973-09-25 |
M Pitifer |
Replaceable blade drilling bits
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1971-11-30 |
1973-04-24 |
Werner Ind Inc |
Travelling drill bit
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1971-12-03 |
1972-09-19 |
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Rotary torque indicator for well drilling apparatus
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1971-12-23 |
1973-12-04 |
C Brown |
Rotating drive assembly
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1972-02-17 |
1974-03-12 |
Byron Jackson Inc |
Hydraulic pipe tong apparatus
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1972-06-29 |
1976-03-02 |
Hydril Company |
Safety valve
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FR2209038B1
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1972-12-06 |
1977-07-22 |
Petroles Cie Francaise |
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1972-12-12 |
1975-05-06 |
Borg Warner |
Pipe tong positioning system
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1972-12-20 |
1977-10-18 |
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Thin film treated drilling bit cones
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FR2234448B1
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1973-06-25 |
1977-12-23 |
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1973-07-09 |
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Racking arm for pipe sections, drill collars, riser pipe, and the like used in well drilling operations
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1973-07-23 |
1975-03-11 |
Stabilator Ab |
Drilling apparatus especially for ground drilling
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1973-08-02 |
1974-11-19 |
Tri State Oil Tools Inc |
Apparatus for rotary drilling
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Drilling apparatus
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1973-11-09 |
1975-03-18 |
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Portable well pipe puller
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1974-03-04 |
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Ingersoll Rand Co |
Pipe handling system
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1974-05-02 |
1975-07-08 |
Dana Corp |
Fluid released clutch
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1974-06-06 |
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Break out elevators for rotary drive assemblies
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1974-07-02 |
1976-01-27 |
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Flexpower deep well drill
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1974-07-10 |
1976-06-22 |
Gearhart-Owen Industries, Inc. |
Downhole signaling system
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1974-09-03 |
1976-01-20 |
Vetco Offshore Industries, Inc. |
Buoyant riser system
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1974-11-14 |
1978-03-07 |
Lamb Industries, Inc. |
Derrick mounted apparatus for the manipulation of pipe
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1974-11-21 |
1976-12-28 |
Otis Engineering Corporation |
Pipe snubbing method and apparatus
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1974-12-09 |
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M.A.T. Industries, Inc. |
Torque limiting adaptor
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1974-12-23 |
1976-03-30 |
Bucyrus-Erie Company |
Drill shock absorber
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1975-01-23 |
1976-06-22 |
Brown Oil Tools, Inc. |
Drive connector with load compensator
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1975-02-18 |
1976-06-08 |
Varco International, Inc. |
Power slip unit
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1975-03-03 |
1976-10-19 |
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Well rig
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1975-04-01 |
1976-03-23 |
The Anaconda Company |
Split bit casing drill
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1975-05-19 |
1977-02-22 |
Standard Pressed Steel Co. |
Tightening system
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1975-09-30 |
1976-09-14 |
Driltech, Inc. |
Holding wrench for drill strings
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1976-02-03 |
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Selbstfahrende und selbstarretierende vorrichtung zum befahren von kanaelen bzw. von langgestreckten gebilden
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1976-04-02 |
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1976-04-19 |
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Apparatus for reducing annular back pressure near the drill bit
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1976-04-27 |
1977-02-01 |
Joy Manufacturing Company |
Drilling tong
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1976-05-03 |
1977-10-18 |
Gardner-Denver Company |
Actuation means for roller guide bushing for drill rig
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1976-05-06 |
1978-07-05 |
A Z Int Tool Co |
Well drilling method and apparatus therefor
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1976-08-02 |
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Varco International, Inc. |
Pile handling apparatus and methods
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1976-08-30 |
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Technique for running casing
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1976-09-27 |
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Tri-State Oil Tool Industries, Inc. |
Method for producing chambered blast holes
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1976-09-27 |
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Choke for controlling the flow of drilling mud
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1976-09-30 |
1978-12-05 |
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Method of gaging and joining pipe
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1976-11-01 |
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Dresser Industries, Inc. |
Method and apparatus for running and retrieving logging instruments in highly deviated well bores
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1976-11-01 |
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Method and apparatus for running and retrieving logging instruments in highly deviated well bores
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1976-11-30 |
1980-02-05 |
General Electric Company |
Rotary drill bit and method for making same
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1977-02-04 |
1978-07-18 |
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Earth boring apparatus for geological drilling and coring
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1977-03-15 |
1980-05-13 |
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Power tongs control arrangement
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1977-04-06 |
1978-08-15 |
Ingersoll-Rand Company |
Method and apparatus for fastener tensioning
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1977-04-18 |
1979-03-06 |
Compagnie Maritime d'Expertise, S.A. |
Pipe connector apparatus having gripping and sealing means
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1977-04-26 |
1978-05-23 |
Weatherford/Lamb, Inc. |
Method of and apparatus for making up a threaded connection
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1977-04-29 |
1979-12-03 |
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Anordning for borrning
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1977-05-23 |
1978-06-20 |
Shell Oil Company |
Telemetering drill string with piped electrical conductor
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CA1069494A
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1977-07-21 |
1980-01-08 |
Gary D. Gray |
Raccord coulissant a coussin amortisseur
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1977-09-29 |
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Power tong apparatus
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Smith International, Inc. |
Drilling and casing landing apparatus and method
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1977-12-05 |
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Baylor College Of Medicine |
Hydraulic test tool and method
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1977-12-08 |
1980-09-17 |
Marconi Co Ltd |
Load moving devices
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1978-02-17 |
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Apparatus for measuring and controlling a force
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1978-03-23 |
1979-11-06 |
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Hardfacing composition of nickel-bonded sintered chromium carbide particles and tools hardfaced thereof
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1978-04-12 |
1986-10-16 |
Rolf 3100 Celle Rüße |
Verfahren und Vorrichtung zum Zentrieren von Futterrohren
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1978-05-01 |
1979-10-16 |
Joy Manufacturing Company |
Indexing mechanism for an open-head power tong
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1978-06-02 |
1981-07-28 |
Rockwell International Corporation |
Tension control of fasteners
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1978-06-22 |
1980-03-25 |
Gulf & Western Manufacturing Company |
Modular transducer assembly for rolling mill roll adjustment mechanism
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1978-06-26 |
1982-06-15 |
Bob's Casing Crews |
Power tongs
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1978-08-04 |
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Subterranean well pipe guiding apparatus
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1978-09-11 |
1979-11-27 |
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Well collar or shoe and cementing/drilling process
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1978-09-12 |
1979-12-04 |
Baker International Corporation |
Method and apparatus for counting turns when making threaded joints
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1978-09-12 |
1982-12-28 |
Baker International Corporation |
Method for counting turns when making threaded joints
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1978-12-08 |
1980-09-09 |
Hudson Ray E |
Pipe spinner
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1979-02-26 |
1980-12-30 |
3U Partners |
Nozzle and process
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CA1150234A
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1979-04-30 |
1983-07-19 |
Eckel Manufacturing Company, Inc. |
Cles mecaniques de devissage, et mode d'emploi connexe
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1979-04-30 |
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Eckel Manufacturing Company, Inc. |
Back-up power tongs and method
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1979-04-30 |
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Back-up power tongs and method
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1979-05-11 |
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Den-Con Tool Company |
Pipe handling apparatus
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1979-05-15 |
1981-08-04 |
Long Year Company |
Retractable bit system
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1979-06-05 |
1981-06-23 |
Putnam Paul S |
Mechanized stand handling apparatus for drilling rigs
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1979-06-23 |
1983-11-10 |
Siegfried 7971 Aichstetten Gebhart |
Vorrichtung zum Sägen von Mauersteinen, Platten, Holz, Rohren u. dgl. Baumaterialien
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1979-07-02 |
1981-04-21 |
Bernhardt & Frederick Co., Inc. |
Kelly valve
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1979-10-09 |
1981-01-27 |
World Wide Oil Tools, Inc. |
Power tong apparatus for making and breaking connections between lengths of small diameter tubing
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1979-12-10 |
1981-12-08 |
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Valve
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1980-01-07 |
1981-09-08 |
Mwl Tool And Supply Company |
Setting tools and liner hanger assembly
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1980-01-14 |
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Telescoping tool and coupling means therefor
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Apparatus for rapidly attaching an inside blowout preventer sub to a drill pipe
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1980-03-11 |
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Mejoras en barrena contractil para perforar pozos
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1980-03-24 |
1982-03-23 |
Varco International, Inc. |
Internal elevator
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1980-05-02 |
1983-08-30 |
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Tong assembly
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1980-05-02 |
1982-08-31 |
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Tong assembly
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1980-05-16 |
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Flexible production tubing
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System and method for assuring integrity of tubular sections
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1980-07-14 |
1982-01-19 |
Baker International Corporation |
Hydraulically set well packer
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1980-08-23 |
1983-07-12 |
Tsukamoto Seiki Co., Ltd. |
Composite nozzle for earth boring and bore enlarging bits
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1980-08-25 |
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Continuous circulation apparatus for air drilling well bore operations
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Method of deep drilling
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Smith International, Inc. |
Nozzle retention method for rock bits
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1981-04-10 |
1984-05-08 |
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Apparatus for counting turns when making threaded joints including an increased resolution turns counter
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1981-04-10 |
1986-11-04 |
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Machine de faconnage de raccords filetes, avec regulateur de rattrapage et compte-spires a resolution accrue
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1981-04-27 |
1983-08-02 |
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Under-reaming pile bore excavator
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1981-06-29 |
1984-03-20 |
Joy Manufacturing Company |
Dual camming action jaw assembly and power tong
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1981-08-14 |
1984-07-17 |
Christensen, Inc. |
Drill tool for deep wells
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1981-09-17 |
1985-01-23 |
Sumitomo Metal Mining Co |
Earth boring apparatus
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1981-09-21 |
1983-08-02 |
Strata Bit Corporation |
Drill bit with carbide coated cutting face
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1981-09-30 |
1983-07-21 |
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Einrichtung zum Verschrauben von Rohren
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1981-11-09 |
1984-01-24 |
Halliburton Company |
Retrievable bridge plug
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1981-12-04 |
1984-05-01 |
Hughes Tool Company |
Telemetry drill pipe with pressure sensitive contacts
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FR2522144A1
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1982-02-24 |
1983-08-26 |
Vallourec |
Procede et dispositif pour s'assurer du vissage correct d'un joint tubulaire comportant une butee de limitation de vissage
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FR2523637A1
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1982-03-17 |
1983-09-23 |
Eimco Secoma |
Guide-fleuret escamotable pour glissiere de foration et de boulonnage
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FR2523635A1
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1982-03-17 |
1983-09-23 |
Bretagne Atel Chantiers |
Dispositif pour le montage d'un train de tiges de forage et pour son entrainement en rotation et translation
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1982-03-26 |
1984-10-02 |
Exxon Production Research Co. |
Method and apparatus for running and cementing pipe
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1982-04-10 |
1983-10-13 |
Schaubstahl-Werke, 5910 Kreuztal |
Vorrichtung zum einschneiden von laengsschlitzen in den umfang von brunnenrohren
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1982-05-04 |
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Halliburton Company |
Tubular connecting device
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Control method and apparatus for fluid delivery in a rotary drill string
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1982-05-19 |
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1982-06-01 |
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Monitoring torque in tubular goods
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1982-06-01 |
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System for stabbing well casing
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Method and apparatus for installing a cementing float shoe on the bottom of a well casing
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1982-07-12 |
1987-06-30 |
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Apparatus for transporting measuring and/or logging equipment in a borehole
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1982-08-03 |
1984-05-22 |
Varco International, Inc. |
Drilling of wells with top drive unit
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1982-08-16 |
1984-04-17 |
Domenico Delesandri |
Apparatus for stabbing and threading a safety valve into a well pipe
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1982-09-14 |
1984-01-19 |
Christensen, Inc., 84115 Salt Lake City, Utah |
Vorrichtung zum Kontern und Brechen von Gewindeverbindungen
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1982-09-24 |
1984-08-21 |
Bardwell Allen E |
Detachable shoe plates for large diameter drill bits
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1982-10-07 |
1987-07-21 |
Mobil Oil Corporation |
Casing alignment tool
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Transformer cable connector
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1984-08-07 |
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Down-hole drilling apparatus
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1982-12-24 |
1984-06-28 |
Gewerkschaft Eisenhütte Westfalia, 4670 Lünen |
Getriebe mit ueberlastsicherung, insbesondere fuer den antrieb von kohlenhobeln u. dgl.
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1983-02-02 |
1988-08-02 |
Exxon Production Research Company |
Method for primary cementing a well with a drilling mud which may be converted to cement using chemical initiators with or without additional irradiation
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1983-02-22 |
1985-05-07 |
Spetsialnoe Konstruktorskoe Bjuro Seismicheskoi Tekhniki |
Automatic wrench for screwing a pipe string together and apart
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1983-02-22 |
1986-08-05 |
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Automated apparatus for handling elongated well elements such as pipes
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Link tilting mechanism for well rigs
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1983-05-19 |
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Annulus bypass peripheral nozzle jet pump pressure differential drilling tool and method for well drilling
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1983-06-24 |
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Chain-powered pipe tong device
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1983-09-02 |
1985-12-31 |
Borg-Warner Corporation |
Torque-limiting clutch with temperature-responsive rapid release mechanism
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1983-09-23 |
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Jord- och bergborrningsanordning foer samtidig borrning och infodring av borrhaalet
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1983-10-06 |
1983-11-09 |
Salvesen Drilling Services |
Analysis of torque applied to joint
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1983-10-06 |
1987-08-04 |
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Spinner for use in connecting pipe joints
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1983-10-25 |
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Well casing inserting and well bore drilling method and means
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1983-10-26 |
1987-03-03 |
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Tubing anchor assembly
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1984-01-11 |
1986-01-21 |
Phillips Petroleum Company |
Pipe alignment apparatus
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1984-01-25 |
1986-10-29 |
Maritime Hydraulics As |
Broennboreinnretning.
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1984-01-26 |
1991-09-17 |
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Device for positioning and stabbing casing from a remote selectively variable location
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1984-01-26 |
1987-03-24 |
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Casing stabbing and positioning apparatus
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1988-06-06 |
1990-05-01 |
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Device for positioning and stabbing casing from a remote selectively variable location
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1984-03-26 |
1985-07-16 |
Varco International, Inc. |
Top drive drilling unit with rotatable pipe support
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EP0162000A1
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1984-04-16 |
1985-11-21 |
Hughes Tool Company |
Appareil de forage de puits à entraînement au sommet comportant un raccord amovible à anse
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1984-04-19 |
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Apparatus for stabbing and threading a drill pipe safety valve
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Well completion method and apparatus
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Drilling with casing and retrievable drill bit
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Drilling with casing and retrievable drill bit
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Retrievable bit and eccentric reamer assembly
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1991-08-28 |
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