US2176355A
(en)
|
|
1939-10-17 |
|
Drumng head |
US282073A
(en)
|
|
1883-07-31 |
|
Electric ore-separator |
US2506538A
(en)
|
|
1950-05-02 |
|
Means for protecting well drilling |
US517509A
(en)
|
|
1894-04-03 |
|
Stuffing-box |
US1157644A
(en)
|
1911-07-24 |
1915-10-19 |
Terry Steam Turbine Company |
Vertical bearing.
|
US1503476A
(en)
|
1921-05-24 |
1924-08-05 |
Hughes Tool Co |
Apparatus for well drilling
|
US1472952A
(en)
|
1922-02-13 |
1923-11-06 |
Longyear E J Co |
Oil-saving device for oil wells
|
US1528560A
(en)
|
1923-10-20 |
1925-03-03 |
Herman A Myers |
Packing tool
|
US1546467A
(en)
|
1924-01-09 |
1925-07-21 |
Joseph F Bennett |
Oil or gas drilling mechanism
|
US1700894A
(en)
|
1924-08-18 |
1929-02-05 |
Joyce |
Metallic packing for alpha fluid under pressure
|
US1560763A
(en)
|
1925-01-27 |
1925-11-10 |
Frank M Collins |
Packing head and blow-out preventer for rotary-type well-drilling apparatus
|
US1708316A
(en)
|
1926-09-09 |
1929-04-09 |
John W Macclatchie |
Blow-out preventer
|
US1813402A
(en)
|
1927-06-01 |
1931-07-07 |
Evert N Hewitt |
Pressure drilling head
|
US1776797A
(en)
|
1928-08-15 |
1930-09-30 |
Sheldon Waldo |
Packing for rotary well drilling
|
US1769921A
(en)
|
1928-12-11 |
1930-07-08 |
Ingersoll Rand Co |
Centralizer for drill steels
|
US1836470A
(en)
|
1930-02-24 |
1931-12-15 |
Granville A Humason |
Blow-out preventer
|
US1942366A
(en)
|
1930-03-29 |
1934-01-02 |
Seamark Lewis Mervyn Cecil |
Casing head equipment
|
US1831956A
(en)
|
1930-10-27 |
1931-11-17 |
Reed Roller Bit Co |
Blow out preventer
|
US2038140A
(en)
|
1931-07-06 |
1936-04-21 |
Hydril Co |
Packing head
|
US1902906A
(en)
|
1931-08-12 |
1933-03-28 |
Seamark Lewis Mervyn Cecil |
Casing head equipment
|
US2071197A
(en)
|
1934-05-07 |
1937-02-16 |
Burns Erwin |
Blow-out preventer
|
US2036537A
(en)
|
1935-07-22 |
1936-04-07 |
Herbert C Otis |
Kelly stuffing box
|
US2124015A
(en)
|
1935-11-19 |
1938-07-19 |
Hydril Co |
Packing head
|
US2144682A
(en)
|
1936-08-12 |
1939-01-24 |
Macclatchie Mfg Company |
Blow-out preventer
|
US2163813A
(en)
|
1936-08-24 |
1939-06-27 |
Hydril Co |
Oil well packing head
|
US2148844A
(en)
|
1936-10-02 |
1939-02-28 |
Hydril Co |
Packing head for oil wells
|
US2175648A
(en)
|
1937-01-18 |
1939-10-10 |
Edmund J Roach |
Blow-out preventer for casing heads
|
US2126007A
(en)
|
1937-04-12 |
1938-08-09 |
Guiberson Corp |
Drilling head
|
US2165410A
(en)
|
1937-05-24 |
1939-07-11 |
Arthur J Penick |
Blowout preventer
|
US2170915A
(en)
|
1937-08-09 |
1939-08-29 |
Frank J Schweitzer |
Collar passing pressure stripper
|
US2185822A
(en)
|
1937-11-06 |
1940-01-02 |
Nat Supply Co |
Rotary swivel
|
US2243439A
(en)
|
1938-01-18 |
1941-05-27 |
Guiberson Corp |
Pressure drilling head
|
US2211122A
(en)
|
1938-03-10 |
1940-08-13 |
J H Mcevoy & Company |
Tubing head and hanger
|
US2170916A
(en)
|
1938-05-09 |
1939-08-29 |
Frank J Schweitzer |
Rotary collar passing blow-out preventer and stripper
|
US2243340A
(en)
|
1938-05-23 |
1941-05-27 |
Frederic W Hild |
Rotary blowout preventer
|
US2303090A
(en)
|
1938-11-08 |
1942-11-24 |
Guiberson Corp |
Pressure drilling head
|
US2222082A
(en)
|
1938-12-01 |
1940-11-19 |
Nat Supply Co |
Rotary drilling head
|
US2199735A
(en)
|
1938-12-29 |
1940-05-07 |
Fred G Beckman |
Packing gland
|
US2287205A
(en)
|
1939-01-27 |
1942-06-23 |
Hydril Company Of California |
Packing head
|
US2233041A
(en)
|
1939-09-14 |
1941-02-25 |
Arthur J Penick |
Blowout preventer
|
US2313169A
(en)
|
1940-05-09 |
1943-03-09 |
Arthur J Penick |
Well head assembly
|
US2325556A
(en)
|
1941-03-22 |
1943-07-27 |
Guiberson Corp |
Well swab
|
US2338093A
(en)
|
1941-06-28 |
1944-01-04 |
George E Failing Supply Compan |
Kelly rod and drive bushing therefor
|
US2480955A
(en)
|
1945-10-29 |
1949-09-06 |
Oil Ct Tool Company |
Joint sealing means for well heads
|
US2529744A
(en)
|
1946-05-18 |
1950-11-14 |
Frank J Schweitzer |
Choking collar blowout preventer and stripper
|
US2609836A
(en)
|
1946-08-16 |
1952-09-09 |
Hydril Corp |
Control head and blow-out preventer
|
NL76600C
(US07291463-20071106-C00008.png)
|
1948-01-23 |
|
|
|
US2628852A
(en)
|
1949-02-02 |
1953-02-17 |
Crane Packing Co |
Cooling system for double seals
|
US2649318A
(en)
|
1950-05-18 |
1953-08-18 |
Blaw Knox Co |
Pressure lubricating system
|
US2862735A
(en)
|
1950-08-19 |
1958-12-02 |
Hydril Co |
Kelly packer and blowout preventer
|
US2731281A
(en)
|
1950-08-19 |
1956-01-17 |
Hydril Corp |
Kelly packer and blowout preventer
|
GB713940A
(en)
|
1951-08-31 |
1954-08-18 |
British Messier Ltd |
Improvements in or relating to hydraulic accumulators and the like
|
US2746781A
(en)
|
1952-01-26 |
1956-05-22 |
Petroleum Mechanical Dev Corp |
Wiping and sealing devices for well pipes
|
US2760795A
(en)
|
1953-06-15 |
1956-08-28 |
Shaffer Tool Works |
Rotary blowout preventer for well apparatus
|
US2760750A
(en)
|
1953-08-13 |
1956-08-28 |
Shaffer Tool Works |
Stationary blowout preventer
|
US2846247A
(en)
|
1953-11-23 |
1958-08-05 |
Guiberson Corp |
Drilling head
|
US2808229A
(en)
|
1954-11-12 |
1957-10-01 |
Shell Oil Co |
Off-shore drilling
|
US2929610A
(en)
|
1954-12-27 |
1960-03-22 |
Shell Oil Co |
Drilling
|
US2853274A
(en)
|
1955-01-03 |
1958-09-23 |
Henry H Collins |
Rotary table and pressure fluid seal therefor
|
US2808230A
(en)
|
1955-01-17 |
1957-10-01 |
Shell Oil Co |
Off-shore drilling
|
US2846178A
(en)
|
1955-01-24 |
1958-08-05 |
Regan Forge & Eng Co |
Conical-type blowout preventer
|
US2886350A
(en)
|
1957-04-22 |
1959-05-12 |
Horne Robert Jackson |
Centrifugal seals
|
US2927774A
(en)
|
1957-05-10 |
1960-03-08 |
Phillips Petroleum Co |
Rotary seal
|
US2995196A
(en)
|
1957-07-08 |
1961-08-08 |
Shaffer Tool Works |
Drilling head
|
US3032125A
(en)
|
1957-07-10 |
1962-05-01 |
Jersey Prod Res Co |
Offshore apparatus
|
US2962096A
(en)
|
1957-10-22 |
1960-11-29 |
Hydril Co |
Well head connector
|
US3029083A
(en)
|
1958-02-04 |
1962-04-10 |
Shaffer Tool Works |
Seal for drilling heads and the like
|
US2904357A
(en)
|
1958-03-10 |
1959-09-15 |
Hydril Co |
Rotatable well pressure seal
|
US3096999A
(en)
|
1958-07-07 |
1963-07-09 |
Cameron Iron Works Inc |
Pipe joint having remote control coupling means
|
US3052300A
(en)
|
1959-02-06 |
1962-09-04 |
Donald M Hampton |
Well head for air drilling apparatus
|
US3023012A
(en)
|
1959-06-09 |
1962-02-27 |
Shaffer Tool Works |
Submarine drilling head and blowout preventer
|
US3100015A
(en)
|
1959-10-05 |
1963-08-06 |
Regan Forge & Eng Co |
Method of and apparatus for running equipment into and out of wells
|
US3033011A
(en)
|
1960-08-31 |
1962-05-08 |
Drilco Oil Tools Inc |
Resilient rotary drive fluid conduit connection
|
US3134613A
(en)
|
1961-03-31 |
1964-05-26 |
Regan Forge & Eng Co |
Quick-connect fitting for oil well tubing
|
US3209829A
(en)
|
1961-05-08 |
1965-10-05 |
Shell Oil Co |
Wellhead assembly for under-water wells
|
US3128614A
(en)
|
1961-10-27 |
1964-04-14 |
Grant Oil Tool Company |
Drilling head
|
US3216731A
(en)
|
1962-02-12 |
1965-11-09 |
Otis Eng Co |
Well tools
|
US3225831A
(en)
|
1962-04-16 |
1965-12-28 |
Hydril Co |
Apparatus and method for packing off multiple tubing strings
|
US3203358A
(en)
|
1962-08-13 |
1965-08-31 |
Regan Forge & Eng Co |
Fluid flow control apparatus
|
US3176996A
(en)
|
1962-10-12 |
1965-04-06 |
Barnett Leon Truman |
Oil balanced shaft seal
|
NL302722A
(US07291463-20071106-C00008.png)
|
1963-02-01 |
|
|
|
US3227228A
(en)
|
1963-05-24 |
1966-01-04 |
Clyde E Bannister |
Rotary drilling and borehole coring apparatus and method
|
US3259198A
(en)
|
1963-05-28 |
1966-07-05 |
Shell Oil Co |
Method and apparatus for drilling underwater wells
|
US3294112A
(en)
|
1963-07-01 |
1966-12-27 |
Regan Forge & Eng Co |
Remotely operable fluid flow control valve
|
US3288472A
(en)
|
1963-07-01 |
1966-11-29 |
Regan Forge & Eng Co |
Metal seal
|
US3233674A
(en)
|
1963-07-22 |
1966-02-08 |
Baker Oil Tools Inc |
Subsurface well apparatus
|
US3268233A
(en)
|
1963-10-07 |
1966-08-23 |
Brown Oil Tools |
Rotary stripper for well pipe strings
|
US3485051A
(en)
|
1963-11-29 |
1969-12-23 |
Regan Forge & Eng Co |
Double tapered guidance method
|
US3347567A
(en)
|
1963-11-29 |
1967-10-17 |
Regan Forge & Eng Co |
Double tapered guidance apparatus
|
US3313358A
(en)
|
1964-04-01 |
1967-04-11 |
Chevron Res |
Conductor casing for offshore drilling and well completion
|
US3289761A
(en)
|
1964-04-15 |
1966-12-06 |
Robbie J Smith |
Method and means for sealing wells
|
US3313345A
(en)
|
1964-06-02 |
1967-04-11 |
Chevron Res |
Method and apparatus for offshore drilling and well completion
|
US3360048A
(en)
|
1964-06-29 |
1967-12-26 |
Regan Forge & Eng Co |
Annulus valve
|
US3285352A
(en)
|
1964-12-03 |
1966-11-15 |
Joseph M Hunter |
Rotary air drilling head
|
US3372761A
(en)
|
1965-06-30 |
1968-03-12 |
Adrianus Wilhelmus Van Gils |
Maximum allowable back pressure controller for a drilled hole
|
US3302048A
(en)
|
1965-09-23 |
1967-01-31 |
Barden Corp |
Self-aligning gas bearing
|
US3405387A
(en)
|
1965-10-24 |
1968-10-08 |
Stewart & Stevenson Inc Jim |
Acoustical underwater control apparatus
|
US3397928A
(en)
|
1965-11-08 |
1968-08-20 |
Edward M. Galle |
Seal means for drill bit bearings
|
US3401600A
(en)
|
1965-12-23 |
1968-09-17 |
Bell Aerospace Corp |
Control system having a plurality of control chains each of which may be disabled in event of failure thereof
|
US3333870A
(en)
|
1965-12-30 |
1967-08-01 |
Regan Forge & Eng Co |
Marine conductor coupling with double seal construction
|
US3387851A
(en)
|
1966-01-12 |
1968-06-11 |
Shaffer Tool Works |
Tandem stripper sealing apparatus
|
US3405763A
(en)
|
1966-02-18 |
1968-10-15 |
Gray Tool Co |
Well completion apparatus and method
|
US3424197A
(en)
|
1966-03-25 |
1969-01-28 |
Sumitomo Precision Prod Co |
Indication apparatus of displacement by means of liquid pressure
|
US3445126A
(en)
|
1966-05-19 |
1969-05-20 |
Regan Forge & Eng Co |
Marine conductor coupling
|
US3421580A
(en)
|
1966-08-15 |
1969-01-14 |
Rockwell Mfg Co |
Underwater well completion method and apparatus
|
US3400938A
(en)
|
1966-09-16 |
1968-09-10 |
Williams Bob |
Drilling head assembly
|
US3472518A
(en)
|
1966-10-24 |
1969-10-14 |
Texaco Inc |
Dynamic seal for drill pipe annulus
|
US3443643A
(en)
|
1966-12-30 |
1969-05-13 |
Cameron Iron Works Inc |
Apparatus for controlling the pressure in a well
|
FR1519891A
(fr)
|
1967-02-24 |
1968-04-05 |
Entpr D Equipements Mecaniques |
Perfectionnements apportés aux structures du genre des plates-formes pour travaux sous-marins
|
US3481610A
(en)
|
1967-06-02 |
1969-12-02 |
Bowen Tools Inc |
Seal valve assembly
|
US3492007A
(en)
|
1967-06-07 |
1970-01-27 |
Regan Forge & Eng Co |
Load balancing full opening and rotating blowout preventer apparatus
|
US3452815A
(en)
|
1967-07-31 |
1969-07-01 |
Regan Forge & Eng Co |
Latching mechanism
|
US3493043A
(en)
|
1967-08-09 |
1970-02-03 |
Regan Forge & Eng Co |
Mono guide line apparatus and method
|
US3561723A
(en)
|
1968-05-07 |
1971-02-09 |
Edward T Cugini |
Stripping and blow-out preventer device
|
US3516492A
(en)
|
1968-05-23 |
1970-06-23 |
Shell Oil Co |
Underwater wellhead connector
|
US3503460A
(en)
|
1968-07-03 |
1970-03-31 |
Byron Jackson Inc |
Pipe handling and centering apparatus for well drilling rigs
|
US3476195A
(en)
|
1968-11-15 |
1969-11-04 |
Hughes Tool Co |
Lubricant relief valve for rock bits
|
US3603409A
(en)
|
1969-03-27 |
1971-09-07 |
Regan Forge & Eng Co |
Method and apparatus for balancing subsea internal and external well pressures
|
US3529835A
(en)
|
1969-05-15 |
1970-09-22 |
Hydril Co |
Kelly packer and lubricator
|
US3661409A
(en)
|
1969-08-14 |
1972-05-09 |
Gray Tool Co |
Multi-segment clamp
|
US3587734A
(en)
|
1969-09-08 |
1971-06-28 |
Shafco Ind Inc |
Adapter for converting a stationary blowout preventer to a rotary blowout preventer
|
US3621912A
(en)
|
1969-12-10 |
1971-11-23 |
Exxon Production Research Co |
Remotely operated rotating wellhead
|
US3638721A
(en)
|
1969-12-10 |
1972-02-01 |
Exxon Production Research Co |
Flexible connection for rotating blowout preventer
|
US3638742A
(en)
|
1970-01-06 |
1972-02-01 |
William A Wallace |
Well bore seal apparatus for closed fluid circulation assembly
|
US3631834A
(en)
|
1970-01-26 |
1972-01-04 |
Waukesha Bearings Corp |
Pressure-balancing oil system for stern tubes of ships
|
US3664376A
(en)
|
1970-01-26 |
1972-05-23 |
Regan Forge & Eng Co |
Flow line diverter apparatus
|
US3667721A
(en)
|
1970-04-13 |
1972-06-06 |
Rucker Co |
Blowout preventer
|
US3583480A
(en)
|
1970-06-10 |
1971-06-08 |
Regan Forge & Eng Co |
Method of providing a removable packing insert in a subsea stationary blowout preventer apparatus
|
US3677353A
(en)
|
1970-07-15 |
1972-07-18 |
Cameron Iron Works Inc |
Apparatus for controlling well pressure
|
US3653350A
(en)
|
1970-12-04 |
1972-04-04 |
Waukesha Bearings Corp |
Pressure balancing oil system for stern tubes of ships
|
US3800869A
(en)
|
1971-01-04 |
1974-04-02 |
Rockwell International Corp |
Underwater well completion method and apparatus
|
US3971576A
(en)
|
1971-01-04 |
1976-07-27 |
Mcevoy Oilfield Equipment Co. |
Underwater well completion method and apparatus
|
US3741296A
(en)
|
1971-06-14 |
1973-06-26 |
Hydril Co |
Replacement of sub sea blow out preventer packing units
|
US3779313A
(en)
|
1971-07-01 |
1973-12-18 |
Regan Forge & Eng Co |
Le connecting apparatus for subsea wellhead
|
US3724862A
(en)
|
1971-08-21 |
1973-04-03 |
M Biffle |
Drill head and sealing apparatus therefore
|
US3872717A
(en)
|
1972-01-03 |
1975-03-25 |
Nathaniel S Fox |
Soil testing method and apparatus
|
US3815673A
(en)
|
1972-02-16 |
1974-06-11 |
Exxon Production Research Co |
Method and apparatus for controlling hydrostatic pressure gradient in offshore drilling operations
|
US3827511A
(en)
|
1972-12-18 |
1974-08-06 |
Cameron Iron Works Inc |
Apparatus for controlling well pressure
|
US3891037A
(en)
|
1972-12-26 |
1975-06-24 |
Dale E Well |
Remotely operated seafloor coring and drilling method and system
|
US3868832A
(en)
|
1973-03-08 |
1975-03-04 |
Morris S Biffle |
Rotary drilling head assembly
|
US3965987A
(en)
|
1973-03-08 |
1976-06-29 |
Dresser Industries, Inc. |
Method of sealing the annulus between a toolstring and casing head
|
US3914732A
(en)
|
1973-07-23 |
1975-10-21 |
Us Energy |
System for remote control of underground device
|
JPS5233259B2
(US07291463-20071106-C00008.png)
|
1974-04-26 |
1977-08-26 |
|
|
US3924678A
(en)
|
1974-07-15 |
1975-12-09 |
Vetco Offshore Ind Inc |
Casing hanger and packing running apparatus
|
US3934887A
(en)
|
1975-01-30 |
1976-01-27 |
Dresser Industries, Inc. |
Rotary drilling head assembly
|
US3952526A
(en)
|
1975-02-03 |
1976-04-27 |
Regan Offshore International, Inc. |
Flexible supportive joint for sub-sea riser flotation means
|
US4052703A
(en)
|
1975-05-05 |
1977-10-04 |
Automatic Terminal Information Systems, Inc. |
Intelligent multiplex system for subsurface wells
|
US3984990A
(en)
|
1975-06-09 |
1976-10-12 |
Regan Offshore International, Inc. |
Support means for a well riser or the like
|
US3955622A
(en)
|
1975-06-09 |
1976-05-11 |
Regan Offshore International, Inc. |
Dual drill string orienting apparatus and method
|
US3992889A
(en)
|
1975-06-09 |
1976-11-23 |
Regan Offshore International, Inc. |
Flotation means for subsea well riser
|
US4046191A
(en)
|
1975-07-07 |
1977-09-06 |
Exxon Production Research Company |
Subsea hydraulic choke
|
US4063602A
(en)
|
1975-08-13 |
1977-12-20 |
Exxon Production Research Company |
Drilling fluid diverter system
|
US3976148A
(en)
|
1975-09-12 |
1976-08-24 |
The Offshore Company |
Method and apparatus for determining onboard a heaving vessel the flow rate of drilling fluid flowing out of a wellhole and into a telescoping marine riser connecting between the wellhouse and the vessel
|
US3999766A
(en)
|
1975-11-28 |
1976-12-28 |
General Electric Company |
Dynamoelectric machine shaft seal
|
FR2356064A1
(fr)
|
1976-02-09 |
1978-01-20 |
Commissariat Energie Atomique |
Dispositif d'etancheite pour sortie d'arbre de machine tournante
|
US4057781A
(en)
|
1976-03-19 |
1977-11-08 |
Scherbatskoy Serge Alexander |
Well bore communication method
|
US4098341A
(en)
|
1977-02-28 |
1978-07-04 |
Hydril Company |
Rotating blowout preventer apparatus
|
US4183562A
(en)
|
1977-04-01 |
1980-01-15 |
Regan Offshore International, Inc. |
Marine riser conduit section coupling means
|
US4091881A
(en)
|
1977-04-11 |
1978-05-30 |
Exxon Production Research Company |
Artificial lift system for marine drilling riser
|
US4099583A
(en)
|
1977-04-11 |
1978-07-11 |
Exxon Production Research Company |
Gas lift system for marine drilling riser
|
US4109712A
(en)
|
1977-08-01 |
1978-08-29 |
Regan Offshore International, Inc. |
Safety apparatus for automatically sealing hydraulic lines within a sub-sea well casing
|
US4149603A
(en)
|
1977-09-06 |
1979-04-17 |
Arnold James F |
Riserless mud return system
|
US4216835A
(en)
|
1977-09-07 |
1980-08-12 |
Nelson Norman A |
System for connecting an underwater platform to an underwater floor
|
US4157186A
(en)
|
1977-10-17 |
1979-06-05 |
Murray Donnie L |
Heavy duty rotating blowout preventor
|
US4208056A
(en)
|
1977-10-18 |
1980-06-17 |
Biffle Morris S |
Rotating blowout preventor with index kelly drive bushing and stripper rubber
|
US4154448A
(en)
|
1977-10-18 |
1979-05-15 |
Biffle Morris S |
Rotating blowout preventor with rigid washpipe
|
US4222590A
(en)
|
1978-02-02 |
1980-09-16 |
Regan Offshore International, Inc. |
Equally tensioned coupling apparatus
|
US4200312A
(en)
|
1978-02-06 |
1980-04-29 |
Regan Offshore International, Inc. |
Subsea flowline connector
|
US4143880A
(en)
|
1978-03-23 |
1979-03-13 |
Dresser Industries, Inc. |
Reverse pressure activated rotary drill head seal
|
US4143881A
(en)
|
1978-03-23 |
1979-03-13 |
Dresser Industries, Inc. |
Lubricant cooled rotary drill head seal
|
US4249600A
(en)
|
1978-06-06 |
1981-02-10 |
Brown Oil Tools, Inc. |
Double cylinder system
|
US4336840A
(en)
|
1978-06-06 |
1982-06-29 |
Hughes Tool Company |
Double cylinder system
|
US4384724A
(en)
|
1978-08-17 |
1983-05-24 |
Derman Karl G E |
Sealing device
|
US4282939A
(en)
|
1979-06-20 |
1981-08-11 |
Exxon Production Research Company |
Method and apparatus for compensating well control instrumentation for the effects of vessel heave
|
US4281724A
(en)
|
1979-08-24 |
1981-08-04 |
Smith International, Inc. |
Drilling head
|
US4285406A
(en)
|
1979-08-24 |
1981-08-25 |
Smith International, Inc. |
Drilling head
|
US4304310A
(en)
|
1979-08-24 |
1981-12-08 |
Smith International, Inc. |
Drilling head
|
US4293047A
(en)
|
1979-08-24 |
1981-10-06 |
Smith International, Inc. |
Drilling head
|
US4480703A
(en)
|
1979-08-24 |
1984-11-06 |
Smith International, Inc. |
Drilling head
|
US4291772A
(en)
|
1980-03-25 |
1981-09-29 |
Standard Oil Company (Indiana) |
Drilling fluid bypass for marine riser
|
US4313054A
(en)
|
1980-03-31 |
1982-01-26 |
Carrier Corporation |
Part load calculator
|
US4310058A
(en)
|
1980-04-28 |
1982-01-12 |
Otis Engineering Corporation |
Well drilling method
|
US4312404A
(en)
|
1980-05-01 |
1982-01-26 |
Lynn International Inc. |
Rotating blowout preventer
|
US4386667A
(en)
|
1980-05-01 |
1983-06-07 |
Hughes Tool Company |
Plunger lubricant compensator for an earth boring drill bit
|
US4375239A
(en)
|
1980-06-13 |
1983-03-01 |
Halliburton Company |
Acoustic subsea test tree and method
|
US4355784A
(en)
|
1980-08-04 |
1982-10-26 |
Warren Automatic Tool Company |
Method and apparatus for controlling back pressure
|
US4326584A
(en)
|
1980-08-04 |
1982-04-27 |
Regan Offshore International, Inc. |
Kelly packing and stripper seal protection element
|
US4363357A
(en)
|
1980-10-09 |
1982-12-14 |
Hunter Joseph M |
Rotary drilling head
|
US4361185A
(en)
|
1980-10-31 |
1982-11-30 |
Biffle John M |
Stripper rubber for rotating blowout preventors
|
US4367795A
(en)
|
1980-10-31 |
1983-01-11 |
Biffle Morris S |
Rotating blowout preventor with improved seal assembly
|
US4353420A
(en)
|
1980-10-31 |
1982-10-12 |
Cameron Iron Works, Inc. |
Wellhead apparatus and method of running same
|
US4383577A
(en)
|
1981-02-10 |
1983-05-17 |
Pruitt Alfred B |
Rotating head for air, gas and mud drilling
|
US4387771A
(en)
|
1981-02-17 |
1983-06-14 |
Jones Darrell L |
Wellhead system for exploratory wells
|
US4398599A
(en)
|
1981-02-23 |
1983-08-16 |
Chickasha Rentals, Inc. |
Rotating blowout preventor with adaptor
|
US4378849A
(en)
|
1981-02-27 |
1983-04-05 |
Wilks Joe A |
Blowout preventer with mechanically operated relief valve
|
US4345769A
(en)
|
1981-03-16 |
1982-08-24 |
Washington Rotating Control Heads, Inc. |
Drilling head assembly seal
|
US4335791A
(en)
|
1981-04-06 |
1982-06-22 |
Evans Robert F |
Pressure compensator and lubricating reservoir with improved response to substantial pressure changes and adverse environment
|
US4337653A
(en)
|
1981-04-29 |
1982-07-06 |
Koomey, Inc. |
Blowout preventer control and recorder system
|
US4349204A
(en)
|
1981-04-29 |
1982-09-14 |
Lynes, Inc. |
Non-extruding inflatable packer assembly
|
JPS5825036Y2
(ja)
|
1981-05-29 |
1983-05-28 |
塚本精機株式会社 |
回転掘削工具の圧力補償装置
|
US4423776A
(en)
|
1981-06-25 |
1984-01-03 |
Wagoner E Dewayne |
Drilling head assembly
|
US4457489A
(en)
|
1981-07-13 |
1984-07-03 |
Gilmore Samuel E |
Subsea fluid conduit connections for remote controlled valves
|
US4439204A
(en)
|
1981-09-11 |
1984-03-27 |
Ciba-Geigy Corporation |
Dye salts
|
US4440239A
(en)
|
1981-09-28 |
1984-04-03 |
Exxon Production Research Co. |
Method and apparatus for controlling the flow of drilling fluid in a wellbore
|
US4432417A
(en)
|
1981-10-02 |
1984-02-21 |
Baker International Corporation |
Control pressure actuated downhole hanger apparatus
|
US4413653A
(en)
|
1981-10-08 |
1983-11-08 |
Halliburton Company |
Inflation anchor
|
US4424861A
(en)
|
1981-10-08 |
1984-01-10 |
Halliburton Company |
Inflatable anchor element and packer employing same
|
US4406333A
(en)
|
1981-10-13 |
1983-09-27 |
Adams Johnie R |
Rotating head for rotary drilling rigs
|
US4441551A
(en)
|
1981-10-15 |
1984-04-10 |
Biffle Morris S |
Modified rotating head assembly for rotating blowout preventors
|
US4416340A
(en)
|
1981-12-24 |
1983-11-22 |
Smith International, Inc. |
Rotary drilling head
|
US4427072A
(en)
|
1982-05-21 |
1984-01-24 |
Armco Inc. |
Method and apparatus for deep underwater well drilling and completion
|
US4440232A
(en)
|
1982-07-26 |
1984-04-03 |
Koomey, Inc. |
Well pressure compensation for blowout preventers
|
US4448255A
(en)
|
1982-08-17 |
1984-05-15 |
Shaffer Donald U |
Rotary blowout preventer
|
US4439068A
(en)
|
1982-09-23 |
1984-03-27 |
Armco Inc. |
Releasable guide post mount and method for recovering guide posts by remote operations
|
US4444401A
(en)
|
1982-12-13 |
1984-04-24 |
Hydril Company |
Flow diverter seal with respective oblong and circular openings
|
US4444250A
(en)
|
1982-12-13 |
1984-04-24 |
Hydril Company |
Flow diverter
|
US4456063A
(en)
|
1982-12-13 |
1984-06-26 |
Hydril Company |
Flow diverter
|
US4456062A
(en)
|
1982-12-13 |
1984-06-26 |
Hydril Company |
Flow diverter
|
US4478287A
(en)
|
1983-01-27 |
1984-10-23 |
Hydril Company |
Well control method and apparatus
|
US4484753A
(en)
|
1983-01-31 |
1984-11-27 |
Nl Industries, Inc. |
Rotary shaft seal
|
US4488703A
(en)
|
1983-02-18 |
1984-12-18 |
Marvin R. Jones |
Valve apparatus
|
US4486025A
(en)
|
1984-03-05 |
1984-12-04 |
Washington Rotating Control Heads, Inc. |
Stripper packer
|
US4617960A
(en)
|
1985-05-03 |
1986-10-21 |
Develco, Inc. |
Verification of a surface controlled subsurface actuating device
|
GB8514887D0
(en)
|
1985-06-12 |
1985-07-17 |
Smedvig Peder As |
Down-hole blow-out preventers
|
US4698631A
(en)
|
1986-12-17 |
1987-10-06 |
Hughes Tool Company |
Surface acoustic wave pipe identification system
|
US4796699A
(en)
|
1988-05-26 |
1989-01-10 |
Schlumberger Technology Corporation |
Well tool control system and method
|
US4856595A
(en)
|
1988-05-26 |
1989-08-15 |
Schlumberger Technology Corporation |
Well tool control system and method
|
US4896722A
(en)
|
1988-05-26 |
1990-01-30 |
Schlumberger Technology Corporation |
Multiple well tool control systems in a multi-valve well testing system having automatic control modes
|
US4928088A
(en)
|
1989-03-10 |
1990-05-22 |
Schlumberger Technology Corporation |
Apparatus for extracting recorded information from a logging tool
|
US5142128A
(en)
|
1990-05-04 |
1992-08-25 |
Perkin Gregg S |
Oilfield equipment identification apparatus
|
US6055213A
(en)
|
1990-07-09 |
2000-04-25 |
Baker Hughes Incorporated |
Subsurface well apparatus
|
US5579283A
(en)
|
1990-07-09 |
1996-11-26 |
Baker Hughes Incorporated |
Method and apparatus for communicating coded messages in a wellbore
|
US5226494A
(en)
|
1990-07-09 |
1993-07-13 |
Baker Hughes Incorporated |
Subsurface well apparatus
|
US5343963A
(en)
|
1990-07-09 |
1994-09-06 |
Bouldin Brett W |
Method and apparatus for providing controlled force transference to a wellbore tool
|
GB2247904A
(en)
|
1990-09-13 |
1992-03-18 |
Axl Systems Ltd |
Identifying metal articles
|
US5146983A
(en)
|
1991-03-15 |
1992-09-15 |
Schlumberger Technology Corporation |
Hydrostatic setting tool including a selectively operable apparatus initially blocking an orifice disposed between two chambers and opening in response to a signal
|
US5289372A
(en)
|
1992-08-18 |
1994-02-22 |
Loral Aerospace Corp. |
Global equipment tracking system
|
US5558153A
(en)
|
1994-10-20 |
1996-09-24 |
Baker Hughes Incorporated |
Method & apparatus for actuating a downhole tool
|
US5732776A
(en)
*
|
1995-02-09 |
1998-03-31 |
Baker Hughes Incorporated |
Downhole production well control system and method
|
US5706896A
(en)
|
1995-02-09 |
1998-01-13 |
Baker Hughes Incorporated |
Method and apparatus for the remote control and monitoring of production wells
|
AU716324B2
(en)
|
1995-02-10 |
2000-02-24 |
Baker Hughes Incorporated |
Method and apparatus for remote control of wellbore end devices
|
US5611401A
(en)
|
1995-07-11 |
1997-03-18 |
Baker Hughes Incorporated |
One-trip conveying method for packer/plug and perforating gun
|
US5833002A
(en)
*
|
1996-06-20 |
1998-11-10 |
Baker Hughes Incorporated |
Remote control plug-dropping head
|
US5893413A
(en)
|
1996-07-16 |
1999-04-13 |
Baker Hughes Incorporated |
Hydrostatic tool with electrically operated setting mechanism
|
US5991602A
(en)
|
1996-12-11 |
1999-11-23 |
Labarge, Inc. |
Method of and system for communication between points along a fluid flow
|
US6384738B1
(en)
|
1997-04-07 |
2002-05-07 |
Halliburton Energy Services, Inc. |
Pressure impulse telemetry apparatus and method
|
US6388577B1
(en)
|
1997-04-07 |
2002-05-14 |
Kenneth J. Carstensen |
High impact communication and control system
|
US6766854B2
(en)
*
|
1997-06-02 |
2004-07-27 |
Schlumberger Technology Corporation |
Well-bore sensor apparatus and method
|
CA2292541C
(en)
|
1997-06-06 |
2005-03-01 |
Camco International Inc. |
Electro-hydraulic well tool actuator
|
US6109357A
(en)
|
1997-12-12 |
2000-08-29 |
Baker Hughes Incorporated |
Control line actuation of multiple downhole components
|
NO316757B1
(no)
|
1998-01-28 |
2004-04-26 |
Baker Hughes Inc |
Anordning og fremgangsmate for fjernaktivisering av et nedihullsverktoy ved hjelp av vibrasjon
|
GB2352261B
(en)
|
1998-07-22 |
2001-06-27 |
Schlumberger Holdings |
Apparatus and method for firing a perforating gun
|
US6333699B1
(en)
|
1998-08-28 |
2001-12-25 |
Marathon Oil Company |
Method and apparatus for determining position in a pipe
|
US20040239521A1
(en)
|
2001-12-21 |
2004-12-02 |
Zierolf Joseph A. |
Method and apparatus for determining position in a pipe
|
US7283061B1
(en)
|
1998-08-28 |
2007-10-16 |
Marathon Oil Company |
Method and system for performing operations and for improving production in wells
|
US6349772B2
(en)
|
1998-11-02 |
2002-02-26 |
Halliburton Energy Services, Inc. |
Apparatus and method for hydraulically actuating a downhole device from a remote location
|
US6244351B1
(en)
|
1999-01-11 |
2001-06-12 |
Schlumberger Technology Corporation |
Pressure-controlled actuating mechanism
|
US6347292B1
(en)
|
1999-02-17 |
2002-02-12 |
Den-Con Electronics, Inc. |
Oilfield equipment identification method and apparatus
|
US6536524B1
(en)
|
1999-04-27 |
2003-03-25 |
Marathon Oil Company |
Method and system for performing a casing conveyed perforating process and other operations in wells
|
WO2000073625A1
(en)
|
1999-05-28 |
2000-12-07 |
Baker Hughes Incorporated |
Method of utilizing flowable devices in wellbores
|
US6935425B2
(en)
|
1999-05-28 |
2005-08-30 |
Baker Hughes Incorporated |
Method for utilizing microflowable devices for pipeline inspections
|
US6443228B1
(en)
|
1999-05-28 |
2002-09-03 |
Baker Hughes Incorporated |
Method of utilizing flowable devices in wellbores
|
US6597175B1
(en)
|
1999-09-07 |
2003-07-22 |
Halliburton Energy Services, Inc. |
Electromagnetic detector apparatus and method for oil or gas well, and circuit-bearing displaceable object to be detected therein
|
US6343649B1
(en)
|
1999-09-07 |
2002-02-05 |
Halliburton Energy Services, Inc. |
Methods and associated apparatus for downhole data retrieval, monitoring and tool actuation
|
GB9921554D0
(en)
|
1999-09-14 |
1999-11-17 |
Mach Limited |
Apparatus and methods relating to downhole operations
|
US6308137B1
(en)
|
1999-10-29 |
2001-10-23 |
Schlumberger Technology Corporation |
Method and apparatus for communication with a downhole tool
|
US7275602B2
(en)
|
1999-12-22 |
2007-10-02 |
Weatherford/Lamb, Inc. |
Methods for expanding tubular strings and isolating subterranean zones
|
RU2256074C2
(ru)
|
2000-03-02 |
2005-07-10 |
Шелл Интернэшнл Рисерч Маатсхаппий Б.В. |
Система управления связями и подачей электрического тока, нефтяная скважина для добычи нефтепродуктов (варианты) и способ добычи нефтепродуктов из нефтяной скважины
|
US6333700B1
(en)
|
2000-03-28 |
2001-12-25 |
Schlumberger Technology Corporation |
Apparatus and method for downhole well equipment and process management, identification, and actuation
|
US6989764B2
(en)
|
2000-03-28 |
2006-01-24 |
Schlumberger Technology Corporation |
Apparatus and method for downhole well equipment and process management, identification, and actuation
|
US7385523B2
(en)
|
2000-03-28 |
2008-06-10 |
Schlumberger Technology Corporation |
Apparatus and method for downhole well equipment and process management, identification, and operation
|
NO313430B1
(no)
|
2000-10-02 |
2002-09-30 |
Bernt Reinhardt Pedersen |
Anordning ved nedihullsventil
|
US6684953B2
(en)
|
2001-01-22 |
2004-02-03 |
Baker Hughes Incorporated |
Wireless packer/anchor setting or activation
|
US6488082B2
(en)
|
2001-01-23 |
2002-12-03 |
Halliburton Energy Services, Inc. |
Remotely operated multi-zone packing system
|
US7322410B2
(en)
|
2001-03-02 |
2008-01-29 |
Shell Oil Company |
Controllable production well packer
|
US7014100B2
(en)
|
2001-04-27 |
2006-03-21 |
Marathon Oil Company |
Process and assembly for identifying and tracking assets
|
US20030029611A1
(en)
|
2001-08-10 |
2003-02-13 |
Owens Steven C. |
System and method for actuating a subterranean valve to terminate a reverse cementing operation
|
RU2004124049A
(ru)
|
2002-01-09 |
2005-03-27 |
Мидвествако Корпорейшн (Us) |
Интеллектуальная станция с множеством антенн радиочастотного диапазона, система и способ инвентаризационного контроля с ее использованием
|
US6789619B2
(en)
|
2002-04-10 |
2004-09-14 |
Bj Services Company |
Apparatus and method for detecting the launch of a device in oilfield applications
|
US6802373B2
(en)
|
2002-04-10 |
2004-10-12 |
Bj Services Company |
Apparatus and method of detecting interfaces between well fluids
|
CN1668940B
(zh)
|
2002-07-18 |
2011-09-07 |
国际壳牌研究有限公司 |
管接头的标记
|
US6915848B2
(en)
*
|
2002-07-30 |
2005-07-12 |
Schlumberger Technology Corporation |
Universal downhole tool control apparatus and methods
|
US6776240B2
(en)
|
2002-07-30 |
2004-08-17 |
Schlumberger Technology Corporation |
Downhole valve
|
GB2418218B
(en)
|
2002-08-13 |
2006-08-02 |
Reeves Wireline Tech Ltd |
Apparatuses and methods for deploying logging tools and signalling in boreholes
|
AU2003299763B2
(en)
|
2002-12-26 |
2009-01-22 |
Baker Hughes Incorporated |
Alternative packer setting method
|
US7128154B2
(en)
|
2003-01-30 |
2006-10-31 |
Weatherford/Lamb, Inc. |
Single-direction cementing plug
|
US7958715B2
(en)
|
2003-03-13 |
2011-06-14 |
National Oilwell Varco, L.P. |
Chain with identification apparatus
|
US7159654B2
(en)
|
2004-04-15 |
2007-01-09 |
Varco I/P, Inc. |
Apparatus identification systems and methods
|
US20050230109A1
(en)
|
2004-04-15 |
2005-10-20 |
Reinhold Kammann |
Apparatus identification systems and methods
|
US7484625B2
(en)
|
2003-03-13 |
2009-02-03 |
Varco I/P, Inc. |
Shale shakers and screens with identification apparatuses
|
US7252152B2
(en)
|
2003-06-18 |
2007-08-07 |
Weatherford/Lamb, Inc. |
Methods and apparatus for actuating a downhole tool
|
US7063148B2
(en)
|
2003-12-01 |
2006-06-20 |
Marathon Oil Company |
Method and system for transmitting signals through a metal tubular
|
US7946356B2
(en)
|
2004-04-15 |
2011-05-24 |
National Oilwell Varco L.P. |
Systems and methods for monitored drilling
|
US9784041B2
(en)
|
2004-04-15 |
2017-10-10 |
National Oilwell Varco L.P. |
Drilling rig riser identification apparatus
|
US8016037B2
(en)
|
2004-04-15 |
2011-09-13 |
National Oilwell Varco, L.P. |
Drilling rigs with apparatus identification systems and methods
|
US7562712B2
(en)
|
2004-04-16 |
2009-07-21 |
Schlumberger Technology Corporation |
Setting tool for hydraulically actuated devices
|
US20050248334A1
(en)
|
2004-05-07 |
2005-11-10 |
Dagenais Pete C |
System and method for monitoring erosion
|
US7273102B2
(en)
|
2004-05-28 |
2007-09-25 |
Schlumberger Technology Corporation |
Remotely actuating a casing conveyed tool
|
GB2415109B
(en)
|
2004-06-09 |
2007-04-25 |
Schlumberger Holdings |
Radio frequency tags for turbulent flows
|
GB0423992D0
(en)
|
2004-10-29 |
2004-12-01 |
Petrowell Ltd |
Improved plug
|
GB0425008D0
(en)
|
2004-11-12 |
2004-12-15 |
Petrowell Ltd |
Method and apparatus
|
US7387165B2
(en)
|
2004-12-14 |
2008-06-17 |
Schlumberger Technology Corporation |
System for completing multiple well intervals
|
GB0502318D0
(en)
|
2005-02-04 |
2005-03-16 |
Petrowell Ltd |
Apparatus and method
|
GB0502298D0
(en)
|
2005-02-04 |
2005-03-16 |
Petrowell Ltd |
Well assembly and method
|
US7874250B2
(en)
*
|
2005-02-09 |
2011-01-25 |
Schlumberger Technology Corporation |
Nano-based devices for use in a wellbore
|
US7275597B2
(en)
|
2005-03-01 |
2007-10-02 |
Intelliserv, Inc. |
Remote power management method and system in a downhole network
|
GB0507408D0
(en)
|
2005-04-13 |
2005-05-18 |
Petrowell Ltd |
Apparatus
|
US7296462B2
(en)
|
2005-05-03 |
2007-11-20 |
Halliburton Energy Services, Inc. |
Multi-purpose downhole tool
|
US7750808B2
(en)
*
|
2005-05-06 |
2010-07-06 |
Halliburton Energy Services, Inc. |
Data retrieval tags
|
GB0509800D0
(en)
|
2005-05-13 |
2005-06-22 |
Petrowell Ltd |
Apparatus
|
US20070030167A1
(en)
*
|
2005-08-04 |
2007-02-08 |
Qiming Li |
Surface communication apparatus and method for use with drill string telemetry
|
US7337850B2
(en)
|
2005-09-14 |
2008-03-04 |
Schlumberger Technology Corporation |
System and method for controlling actuation of tools in a wellbore
|
US7510001B2
(en)
|
2005-09-14 |
2009-03-31 |
Schlumberger Technology Corp. |
Downhole actuation tools
|
GB0520860D0
(en)
|
2005-10-14 |
2005-11-23 |
Weatherford Lamb |
Tubing expansion
|
GB2432602B
(en)
|
2005-11-28 |
2011-03-02 |
Weatherford Lamb |
Serialization and database methods for tubulars and oilfield equipment
|
NO325821B1
(no)
*
|
2006-03-20 |
2008-07-21 |
Well Technology As |
Anordning for akustisk brønntelemetri med trykk-kompenserte sender-/mottakerenheter
|
GB0608334D0
(en)
|
2006-04-27 |
2006-06-07 |
Petrowell Ltd |
Apparatus
|
US8276689B2
(en)
|
2006-05-22 |
2012-10-02 |
Weatherford/Lamb, Inc. |
Methods and apparatus for drilling with casing
|
US7464771B2
(en)
|
2006-06-30 |
2008-12-16 |
Baker Hughes Incorporated |
Downhole abrading tool having taggants for indicating excessive wear
|
US7591318B2
(en)
|
2006-07-20 |
2009-09-22 |
Halliburton Energy Services, Inc. |
Method for removing a sealing plug from a well
|
CA2833943C
(en)
|
2006-08-21 |
2015-07-14 |
Weatherford/Lamb, Inc. |
Releasing and recovering tool
|
MX2009002679A
(es)
|
2006-09-11 |
2009-03-30 |
Nat Oilwell Lp |
Unidad de etiqueta de identificacion por radiofrecuencia.
|
US7874351B2
(en)
|
2006-11-03 |
2011-01-25 |
Baker Hughes Incorporated |
Devices and systems for measurement of position of drilling related equipment
|
GB0622916D0
(en)
|
2006-11-17 |
2006-12-27 |
Petrowell Ltd |
Improved tree plug
|
US20080149351A1
(en)
|
2006-12-20 |
2008-06-26 |
Schlumberger Technology Corporation |
Temporary containments for swellable and inflatable packer elements
|
ATE488259T1
(de)
|
2006-12-28 |
2010-12-15 |
Boston Scient Ltd |
Bioerodierbare endoprothesen und herstellungsverfahren dafür
|
EP2669465A3
(en)
*
|
2007-02-12 |
2016-12-28 |
Weatherford Technology Holdings, LLC |
Apparatus and methods of flow testing formation zones
|
GB0715970D0
(en)
|
2007-08-16 |
2007-09-26 |
Petrowell Ltd |
Remote actuation of downhole tools using fluid pressure from surface
|
US7665527B2
(en)
|
2007-08-21 |
2010-02-23 |
Schlumberger Technology Corporation |
Providing a rechargeable hydraulic accumulator in a wellbore
|
US7588100B2
(en)
|
2007-09-06 |
2009-09-15 |
Precision Drilling Corporation |
Method and apparatus for directional drilling with variable drill string rotation
|
DK178464B1
(da)
|
2007-10-05 |
2016-04-04 |
Mærsk Olie Og Gas As |
Fremgangsmåde til at forsegle en del af annulus mellem et brøndrør og en brøndboring
|
GB0720420D0
(en)
|
2007-10-19 |
2007-11-28 |
Petrowell Ltd |
Method and apparatus
|
GB0720421D0
(en)
|
2007-10-19 |
2007-11-28 |
Petrowell Ltd |
Method and apparatus for completing a well
|
US20090121895A1
(en)
|
2007-11-09 |
2009-05-14 |
Denny Lawrence A |
Oilfield Equipment Identification Method and Apparatus
|
US20090151939A1
(en)
|
2007-12-13 |
2009-06-18 |
Schlumberger Technology Corporation |
Surface tagging system with wired tubulars
|
GB0802094D0
(en)
|
2008-02-05 |
2008-03-12 |
Petrowell Ltd |
Apparatus and method
|
US8464946B2
(en)
|
2010-02-23 |
2013-06-18 |
Vetco Gray Inc. |
Oil and gas riser spider with low frequency antenna apparatus and method
|
GB0804306D0
(en)
|
2008-03-07 |
2008-04-16 |
Petrowell Ltd |
Device
|
US9194227B2
(en)
|
2008-03-07 |
2015-11-24 |
Marathon Oil Company |
Systems, assemblies and processes for controlling tools in a wellbore
|
US10119377B2
(en)
|
2008-03-07 |
2018-11-06 |
Weatherford Technology Holdings, Llc |
Systems, assemblies and processes for controlling tools in a well bore
|
CA2871928C
(en)
|
2008-05-05 |
2016-09-13 |
Weatherford/Lamb, Inc. |
Signal operated tools for milling, drilling, and/or fishing operations
|
US8540035B2
(en)
|
2008-05-05 |
2013-09-24 |
Weatherford/Lamb, Inc. |
Extendable cutting tools for use in a wellbore
|
EP2291576B1
(en)
|
2008-05-05 |
2019-02-20 |
Weatherford Technology Holdings, LLC |
Tools and methods for hanging and/or expanding liner strings
|
GB0818010D0
(en)
|
2008-10-02 |
2008-11-05 |
Petrowell Ltd |
Improved control system
|
GB0901257D0
(en)
|
2009-01-27 |
2009-03-11 |
Petrowell Ltd |
Apparatus and method
|
CA2761854A1
(en)
|
2009-05-15 |
2010-12-09 |
Basf Se |
Pharmaceutical compositions containing antifungal peptides
|
DK178500B1
(en)
|
2009-06-22 |
2016-04-18 |
Maersk Olie & Gas |
A completion assembly for stimulating, segmenting and controlling ERD wells
|
DK178829B1
(en)
|
2009-06-22 |
2017-03-06 |
Maersk Olie & Gas |
A completion assembly and a method for stimulating, segmenting and controlling ERD wells
|
WO2012065123A2
(en)
|
2010-11-12 |
2012-05-18 |
Weatherford/Lamb, Inc. |
Remote operation of cementing head
|
WO2012065126A2
(en)
|
2010-11-12 |
2012-05-18 |
Weatherford/Lamb, Inc. |
Remote operation of setting tools for liner hangers
|