Top 100 US Patents in Drilling for oil, gas, etc.
section e - fixed constructions > earth or rock drilling; mining > earth or rock drilling; obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
Sorted by IPQ® Score, an objective measure of patent quality. View scores and methodology at PatentRatings.com. You can also view all by publication date instead.
US5767678 (A), filed
Wed Oct 09 00:00:00 CDT 1996
, published
Tue Jun 16 00:00:00 CDT 1998
- DIGITAL CONTROL INC
The present invention provides a locator/monitor capable of locating a boring tool and monitoring the progress of the tool for control purposes. The locator/monitor may be used in expedited locating methodology and straightforward calibration techniques of the...
US4554130 (A), filed
Mon Oct 01 00:00:00 CDT 1984
, published
Tue Nov 19 00:00:00 CST 1985
- CDP LTD
A method of consolidating metallic body means comprises (a) applying to the body means a mixture of: (i) metallic powder (ii) fugitive organic binder (iii) volatile solvent (b) drying the mixture, and (c) burning out the binder and solvent at elevated...
US6790811 (B2), filed
Fri Jan 26 00:00:00 CST 2001
, published
Tue Sep 14 00:00:00 CDT 2004
- MI LLC
Invert emulsion compositions including an oleaginous, a non-oleaginous and an amine surfactant that are useful in the oil and gas well drilling art are disclosed. The amine surfactant is selected so that the invert emulsion can be converted form a water-in-oil...
US6756784 (B2), filed
Thu Dec 19 00:00:00 CST 2002
, published
Tue Jun 29 00:00:00 CDT 2004
- MERLIN TECHNOLOGY INC
The present invention provides a locator/monitor capable of locating a boring tool and monitoring the progress of the tool for control purposes. The locator/monitor may be used in expedited locating methodology and straightforward calibration techniques of the...
US4447340 (A), filed
Tue Jun 22 00:00:00 CDT 1982
, published
Tue May 08 00:00:00 CDT 1984
- PETROLES CIE FRANCAISE
In a method of tracing a well drilling mud by determining the concentration of a tracer ion in samples of filtrate from a drilling mud which contains a predetermined concentration of the tracer ion, the improvement wherein the tracer ion is the acetate ion and...
US4968068 (A), filed
Fri Jul 07 00:00:00 CDT 1989
, published
Tue Nov 06 00:00:00 CST 1990
- SANDVIK AB
US6593745 (B2), filed
Wed Jun 12 00:00:00 CDT 2002
, published
Tue Jul 15 00:00:00 CDT 2003
- MERLIN TECHNOLOGY INC
An above ground locator includes an apparatus for determining the strength of the locating signal at a selected point relative to the boring tool. The apparatus includes an antenna arrangement configured for measuring the strength of the locating signal at the...
US6866097 (B2), filed
Tue Apr 24 00:00:00 CDT 2001
, published
Tue Mar 15 00:00:00 CST 2005
- SHELL OIL CO
A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a...
US6065355 (A), filed
Tue Sep 23 00:00:00 CDT 1997
, published
Tue May 23 00:00:00 CDT 2000
- HALLIBURTON ENERGY SERV INC
A non-flashing fluid sampler for use in obtaining a well fluid sample. The sampler comprises a body defining a first chamber, a second chamber, a third chamber and a sampling port therein. The sampling port is in communication with the first chamber and with...
US6182753 (B1), filed
Thu Dec 16 00:00:00 CST 1999
, published
Tue Feb 06 00:00:00 CST 2001
- HALLIBURTON ENERGY SERV INC
A non-flashing fluid sampler for use in obtaining a well fluid sample. The sampler comprises a body defining a first chamber, a second chamber, a third chamber and a sampling port therein. The sampling port is in communication with the first chamber and with...
US6923258 (B2), filed
Thu Jun 12 00:00:00 CDT 2003
, published
Tue Aug 02 00:00:00 CDT 2005
- SHELL OIL CO
A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, HSUB2/SUB, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion...
US5482404 (A), filed
Tue Jul 27 00:00:00 CDT 1993
, published
Tue Jan 09 00:00:00 CST 1996
The apparatus and technique of the invention constitutes a stationary hydraulic jack for pushing sections of new pipe which, in turn, push a frontal cone expander to break up the old pipe and define a path for the new pipe. Frontal apparatus located in front...
US6966372 (B2), filed
Tue Apr 24 00:00:00 CDT 2001
, published
Tue Nov 22 00:00:00 CST 2005
- SHELL OIL CO
A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, HSUB2/SUB, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion...
US6994160 (B2), filed
Tue Apr 24 00:00:00 CDT 2001
, published
Tue Feb 07 00:00:00 CST 2006
- SHELL OIL CO
A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, HSUB2/SUB, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion...
US6057687 (A), filed
Mon Apr 13 00:00:00 CDT 1998
, published
Tue May 02 00:00:00 CDT 2000
- DIGITAL CONTROL INC
A boring tool contains an arrangement for producing a dipole magnetic field. The boring tool is steered through the ground using a boring machine. The position of the boring tool, during its movement through the ground, is established by an above ground...
US6877554 (B2), filed
Tue Apr 24 00:00:00 CDT 2001
, published
Tue Apr 12 00:00:00 CDT 2005
- SHELL OIL CO
A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the...
US6896053 (B2), filed
Tue Apr 24 00:00:00 CDT 2001
, published
Tue May 24 00:00:00 CDT 2005
- SHELL OIL CO
A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, HSUB2/SUB, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion...
US6092599 (A), filed
Thu Sep 17 00:00:00 CDT 1998
, published
Tue Jul 25 00:00:00 CDT 2000
- TEXACO INC
The present invention relates to a downhole oil and water separation system having a casing which includes an interval in communication with a producing zone. The system further includes two pumps disposed in the casing for use in lifting segregated produced...
US6997255 (B2), filed
Tue Apr 24 00:00:00 CDT 2001
, published
Tue Feb 14 00:00:00 CST 2006
- SHELL OIL CO
A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, HSUB2/SUB, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion...
US5411085 (A), filed
Mon Nov 01 00:00:00 CST 1993
, published
Tue May 02 00:00:00 CDT 1995
- CAMCO INT
A coiled tubing completion system is provided with a plurality of completion apparatus, all of which is designed flush with the diameter of the coiled tubing outside diameter for avoiding upsets and are flexible, spoolable on a coiled tubing reel and having...
US5174394 (A), filed
Mon Sep 30 00:00:00 CDT 1991
, published
Tue Dec 29 00:00:00 CST 1992
- HOLZMANN PHILIPP AG
An apparatus for cleaning layers of earth that contain noxious material via a cleaning medium that takes up the noxious material and is introduced into the layers of earth via a drilling tube. The cleaning medium is extracted by suction from the layers of...
US5423390 (A), filed
Tue Oct 12 00:00:00 CDT 1993
, published
Tue Jun 13 00:00:00 CDT 1995
- DRECO INC
The pipe racker assembly includes a mast, a dolly assembly vertically slidably secured to the mast for vertical movement, a handling arms assembly rotatably secured to the dolly assembly and having an upper handling arm extensible to accommodate pipes of...
US6232780 (B1), filed
Fri Mar 03 00:00:00 CST 2000
, published
Tue May 15 00:00:00 CDT 2001
- DIGITAL CONTROL INC
The present invention provides a locator/monitor capable of locating a boring tool and monitoring the progress of the tool for control purposes. The locator/monitor may be used in expedited locating methodology and straightforward calibration techniques of the...
US4545441 (A), filed
Thu Jan 26 00:00:00 CST 1984
, published
Tue Oct 08 00:00:00 CDT 1985
- WILLIAMSON KIRK E
Drill bit for drilling bore holes in earth formations, the bit's cutting face provided with cutter preforms composed of polycrystalline diamonds on a tungsten carbide substrate mounted in sets from the center of the bit's face to its periphery. The first set...
US4431778 (A), filed
Thu Apr 29 00:00:00 CDT 1982
, published
Tue Feb 14 00:00:00 CST 1984
- TEXACO DEVELOPMENT CORP
Hydrocarbons are recovered from a subterranean hydrocarbon-bearing formation penetrated by an injection well and a production well by displacing hydrocarbons toward the production well using a drive fluid such as water thickened with a copolymer of acrylamide...
Thermal processing of a hydrocarbon containing formation to increase a permeability of the formation
US6953087 (B2), filed
Tue Apr 24 00:00:00 CDT 2001
, published
Tue Oct 11 00:00:00 CDT 2005
- SHELL OIL CO
A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, HSUB2/SUB, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion...
US6880635 (B2), filed
Tue Apr 24 00:00:00 CDT 2001
, published
Tue Apr 19 00:00:00 CDT 2005
- SHELL OIL CO
A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, HSUB2/SUB, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation...
US6417666 (B1), filed
Thu Mar 23 00:00:00 CST 2000
, published
Tue Jul 09 00:00:00 CDT 2002
- DIGITAL CONTROL INC
A system is described in which a boring tool is moved through the ground in a region using a drill rig and associated drill string to move the boring tool in a forward direction or in a reverse direction, respectively, through the ground. The boring tool is...
US6589917 (B2), filed
Wed Dec 20 00:00:00 CST 2000
, published
Tue Jul 08 00:00:00 CDT 2003
- MI LLC
An invert emulsion suitable for drilling subterranean wells, in particular oil and gas wells is disclosed which has negative alkalinity and includes an oleaginous phase, and a non-oleaginous phase and an emulsifying agent which stabilizes the invert emulsion...
US4427068 (A), filed
Wed Aug 04 00:00:00 CDT 1982
, published
Tue Jan 24 00:00:00 CST 1984
- KENNECOTT CORP
Sintered, spherical composite pellets or particles comprising one or more clays as a major component and bauxite, alumina, or mixtures thereof, are described, along with the process for their manufacture. The pellets may have an alumina-silica (Al2O3-SiO2)...
US4427068 (B1), filed
Wed Aug 04 00:00:00 CDT 1982
, published
Tue Mar 24 00:00:00 CST 1992
- CARBO CERAMICS INC
US5799740 (A), filed
Mon Feb 27 00:00:00 CST 1995
, published
Tue Sep 01 00:00:00 CDT 1998
- CHARLES MACHINE WORKS
A directional boring machine equipped with a boring head comprising a blade assembly. The blade assembly may comprise a plurality of blades with deflecting surfaces. Alternately, the blade assembly has a single, stepped or serrated blade. The serrated blade...
US4396211 (A), filed
Wed Jun 10 00:00:00 CDT 1981
, published
Tue Aug 02 00:00:00 CDT 1983
- BAKER INT CORP
A concentric insulating tubular conduit member for use in forming a conduit string, such as a tubing string in a subterranean well, is disclosed. Each individual concentric conduit comprises an outer tubing and an outwardly flared inner tubing welded to the...
USRE37867 (E1), filed
Thu May 22 00:00:00 CDT 1997
, published
Tue Oct 08 00:00:00 CDT 2002
- HALLIBURTON ENERGY SERV INC
Single horizontal wells drilled through heterogeneous reservoirs are capable of greater oil productivity than vertical wells, often with lower produced GOR and WOR. Multiple drainholes tied-in to a vertical cased well are even more beneficial. Completion of...
US4909320 (A), filed
Fri Oct 14 00:00:00 CDT 1988
, published
Tue Mar 20 00:00:00 CST 1990
- DRILEX SYST INC
A detonation assembly for an explosive wellhead severing system which employs a battery pack lowerable through a drill string to engage and power the detonation assembly positioned within the well bore. The lowerable unit includes a biased shutter which seals...
US5795474 (A), filed
Mon Mar 06 00:00:00 CST 1995
, published
Tue Aug 18 00:00:00 CDT 1998
Disclosed is a method and apparatus for the continuous remediation of a site contaminated with a hazardous substance. The remediation apparatus includes a material selectively permeable to the hazardous substance located at the site. Once isolated, the...
US6525538 (B1), filed
Thu Sep 21 00:00:00 CDT 2000
, published
Tue Feb 25 00:00:00 CST 2003
- DIGITAL CONTROL INC
An above-ground portable locator is described for locating a boring tool positioned underground. The boring tool includes a transmitter arrangement which transmits an electromagnetic dipole orientation signal. The locator includes a receiver arrangement...
US6192984 (B1), filed
Thu Dec 16 00:00:00 CST 1999
, published
Tue Feb 27 00:00:00 CST 2001
- HALLIBURTON ENERGY SERV INC
A non-flashing fluid sampler for use in obtaining a well fluid sample. The sampler comprises a body defining a first chamber, a second chamber, a third chamber and a sampling port therein. The sampling port is in communication with the first chamber and with...
US4738565 (A), filed
Mon Aug 04 00:00:00 CDT 1986
, published
Tue Apr 19 00:00:00 CDT 1988
- BRITISH GAS CORP
US5337002 (A), filed
Fri Oct 09 00:00:00 CDT 1992
, published
Tue Aug 09 00:00:00 CDT 1994
- MERCER JOHN E
A locator/monitor for locating a boring tool and monitoring the progress of the tool for control purposes. The locator/monitor is used in expedited locating methodology and straightforward calibration techniques of the present invention. A durable and cost...
US4796709 (A), filed
Mon Jan 06 00:00:00 CST 1986
, published
Tue Jan 10 00:00:00 CST 1989
- TRI STATE OIL TOOLS INC
A milling tool (10) for processively cutting away a section of casing (14) installed within a well from the upper annular end (12) of the casing (14). The milling tool (10) includes a plurality of elongate blades (32) equally spaced from each other at...
US6991031 (B2), filed
Tue Apr 24 00:00:00 CDT 2001
, published
Tue Jan 31 00:00:00 CST 2006
- SHELL OIL CO
A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, HSUB2/SUB, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation...
US7246667 (B2), filed
Mon Sep 27 00:00:00 CDT 2004
, published
Tue Jul 24 00:00:00 CDT 2007
- SHELL OIL CO
An apparatus and method for coupling a tubular member to a preexisting structure.
US5988397 (A), filed
Thu Jul 17 00:00:00 CDT 1997
, published
Tue Nov 23 00:00:00 CST 1999
- TUBOSCOPE I P INC
A screen for a vibratory shaker having a frame with multiple openings. Screen modules or plugs are disposed in each opening. Further disclosed is a mounting apparatus for securing the screen plugs in the openings and a support strip for supporting part of a...
US4978260 (A), filed
Fri Apr 15 00:00:00 CDT 1988
, published
Tue Dec 18 00:00:00 CST 1990
- TRI STATE OIL TOOLS INC
A cutting tool (10) for removing members downhole from a well bore and adapted to be inserted within a well from the upper end (12) of the casing (14). The cutting tool (10) includes a plurality of elongate blades (32) on the cylindrical body (18) of the...
US6056060 (A), filed
Tue May 12 00:00:00 CDT 1998
, published
Tue May 02 00:00:00 CDT 2000
- WEATHERFORD LAMB
A new joint compensator and systems with it and methods of their use have been invented which, in one aspect, includes a compensator system for compensating for the weight of at least one joint, which is a wellbore tubular member, the compensating system for...
US5444382 (A), filed
Tue Jun 14 00:00:00 CDT 1994
, published
Tue Aug 22 00:00:00 CDT 1995
- DIGITAL CONTROL INC
The present invention provides a locator/monitor capable of locating a boring tool and monitoring the progress of the tool for control purposes. The locator/monitor may be used in expedited locating methodology and straightforward calibration techniques of the...
US6218342 (B1), filed
Fri May 23 00:00:00 CDT 1997
, published
Tue Apr 17 00:00:00 CDT 2001
- MI LLC
Invert emulsion compositions including an oleaginous, a non-oleaginous and an amine surfactant that are useful in the oil and gas well drilling art are disclosed. The amine surfactant is selected so that the invert emulsion can be converted form a water-in-oil...
US7216767 (B2), filed
Thu Mar 03 00:00:00 CST 2005
, published
Tue May 15 00:00:00 CDT 2007
- VARCO INT
A screen mounting basket for a vibratory separator for separating components of material introduced into the basket, the vibratory separator including a collection receptacle beneath the basket, the basket including two opposed spaced-apart side walls having...
US6913078 (B2), filed
Tue Apr 24 00:00:00 CDT 2001
, published
Tue Jul 05 00:00:00 CDT 2005
- SHELL OIL CO
A hydrocarbon containing formation may be treated using an in situ thermal process. Hydrocarbons, HSUB2/SUB, and/or other formation fluids may be produced from the formation. Heat may be applied to a relatively impermeable formation to raise a temperature of a...
US6910536 (B2), filed
Tue Apr 24 00:00:00 CDT 2001
, published
Tue Jun 28 00:00:00 CDT 2005
- SHELL OIL CO
A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, HSUB2/SUB, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion...
US4601194 (A), filed
Wed Jan 18 00:00:00 CST 1984
, published
Tue Jul 22 00:00:00 CDT 1986
- DAMCO TESTERS INC
A method of testing pipe sections at an oil rig floor by means of an internal pipe testing tool and a pressurized gas containing helium in a ratio of helium to a carrier gas of at least about 1:2856 by volume. The gas is pressurized in a hydraulic accumulator...
US6281489 (B1), filed
Fri May 01 00:00:00 CDT 1998
, published
Tue Aug 28 00:00:00 CDT 2001
- BAKER HUGHES INC
This invention provides a method for controlling production operations using fiber optic devices. An optical fiber carrying fiber-optic sensors is deployed downhole to provide information about downhole conditions. Parameters related to the chemicals being...
US6182757 (B1), filed
Thu Dec 16 00:00:00 CST 1999
, published
Tue Feb 06 00:00:00 CST 2001
- HALLIBURTON ENERGY SERV INC
A non-flashing fluid sampler for use in obtaining a well fluid sample. The sampler comprises a body defining a first chamber, a second chamber, a third chamber and a sampling port therein. The sampling port is in communication with the first chamber and with...
US4325438 (A), filed
Mon Mar 24 00:00:00 CST 1980
, published
Tue Apr 20 00:00:00 CST 1982
- SCIENT DRILLING CONTROLS
A pipe section is added to a drill string while an instrument and a flexible line leading to the instrument remain in the string. The effective length of the flexible line is increased in corresponding with the increase in length of the drill string by...
US5155442 (A), filed
Fri Mar 01 00:00:00 CST 1991
, published
Tue Oct 13 00:00:00 CDT 1992
- MERCER JOHN
The present invention provides a locator/monitor capable of locating a boring tool and monitoring the progress of the tool for control purposes. The locator/monitor may be used in expedited locating methodology and straightforward calibration techniques of the...
US4489779 (A), filed
Mon Feb 28 00:00:00 CST 1983
, published
Tue Dec 25 00:00:00 CST 1984
- QUANTITATIVE ENVIRONMENTAL DEC
A fluid sampling apparatus is disclosed for withdrawing samples of groundwater or other fluids from a well or other monitoring site. The apparatus preferably includes pump means, conduit means and a wellhead assembly that are substantially permanently...
US4896722 (A), filed
Wed Jan 11 00:00:00 CST 1989
, published
Tue Jan 30 00:00:00 CST 1990
- SCHLUMBERGER TECHNOLOGY CORP
A multi-valve well testing system adapted to be disposed downhole in a borehole, includes a plurality of valves and a plurality of well tool control systems connected, respectively, to the plurality of valves and further includes an automatic control mode...
US4351037 (A), filed
Thu Jan 10 00:00:00 CST 1980
, published
Tue Sep 21 00:00:00 CDT 1982
- SCHERBATSKOY SERGE ALEXANDER
A method and apparatus for continuously logging while drilling a well bore with a rotary drilling rig comprising a drill string, a jet type drill bit, and mud pump means for circulating fluid under pressure. The apparatus generally includes means for sensing...
US6640907 (B2), filed
Tue Aug 27 00:00:00 CDT 2002
, published
Tue Nov 04 00:00:00 CST 2003
- MERLIN TECHNOLOGY INC
A portable mapping tool for use in a horizontal drilling system and associated methods use a boring tool configured for transmitting a locating signal. The mapping tool also includes at least one electromagnetic field detector which is configured for measuring...
US7096941 (B2), filed
Tue Apr 24 00:00:00 CDT 2001
, published
Tue Aug 29 00:00:00 CDT 2006
- SHELL OIL CO
A coal containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, HSUB2/SUB, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the...
US7021390 (B2), filed
Fri Apr 18 00:00:00 CDT 2003
, published
Tue Apr 04 00:00:00 CDT 2006
- SHELL OIL CO
A method for expanding tubulars including providing an expandable tubing and a larger diameter tubing, wherein the larger diameter tubing has an expandable, tapering end portion; coupling an end portion of the expandable tubing to the expandable tapering end...
US4858704 (A), filed
Wed Sep 09 00:00:00 CDT 1987
, published
Tue Aug 22 00:00:00 CDT 1989
- GAS RES INST
Long utility holes, for gas lines, electrical conduit, communications conduit and the like, may be bored or pierced horizontally through the earth, particularly under obstacles, such as buildings, streets, highways, rivers, lakes, etc. Such holes may be bored...
US4858704 (B1), filed
Wed Sep 09 00:00:00 CDT 1987
, published
Tue Jan 07 00:00:00 CST 1997
- GAS RES INST
US6902004 (B2), filed
Tue Apr 24 00:00:00 CDT 2001
, published
Tue Jun 07 00:00:00 CDT 2005
- SHELL OIL CO
A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, HSUB2/SUB, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion...
US7240729 (B2), filed
Fri Jan 30 00:00:00 CST 2004
, published
Tue Jul 10 00:00:00 CDT 2007
- SHELL OIL CO
An apparatus for expanding a tubular member.
US7299881 (B2), filed
Mon Sep 27 00:00:00 CDT 2004
, published
Tue Nov 27 00:00:00 CST 2007
- SHELL OIL CO
An apparatus and method for coupling a tubular member to a preexisting structure.
US6994168 (B2), filed
Tue Apr 24 00:00:00 CDT 2001
, published
Tue Feb 07 00:00:00 CST 2006
- BERCHENKO ILYA EMIL
A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, HSUB2/SUB, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion...
USRE33751 (E), filed
Tue May 23 00:00:00 CDT 1989
, published
Tue Nov 26 00:00:00 CST 1991
US7240728 (B2), filed
Tue Sep 25 00:00:00 CDT 2001
, published
Tue Jul 10 00:00:00 CDT 2007
- SHELL OIL CO
A tubular liner including a first tubular portion, a second tubular portion, and an intermediate tapered tubular portion coupled to, and positioned between, the first and second tubular portions.
US5781436 (A), filed
Fri Jul 26 00:00:00 CDT 1996
, published
Tue Jul 14 00:00:00 CDT 1998
- WESTERN ATLAS INT INC
A method of measuring the conductivity of earth formations penetrated by a wellbore. The method comprises selectively passing an alternating current through transmitter coils inserted into the wellbore. Each of the transmitter coils has a magnetic moment...
US4228017 (A), filed
Mon Jun 19 00:00:00 CDT 1978
, published
Tue Oct 14 00:00:00 CDT 1980
- TEXACO DEVELOPMENT CORP
Hydrocarbons are recovered from a subterranean hydrocarbon-bearing formation penetrated by an injection well and a production well by displacing hydrocarbons toward the production well using a drive fluid such as water thickened with a copolymer of (a) vinyl...
US6457537 (B1), filed
Thu Dec 13 00:00:00 CST 2001
, published
Tue Oct 01 00:00:00 CDT 2002
- DIGITAL CONTROL INC
A portable mapping tool for use in a horizontal drilling system and associated methods use a boring tool configured for transmitting a locating signal. The mapping tool also includes at least one electromagnetic field detector which is configured for measuring...
US6668944 (B2), filed
Tue Jan 28 00:00:00 CST 2003
, published
Tue Dec 30 00:00:00 CST 2003
- MERLIN TECHNOLOGY INC
Specific methods are described for use in tracking and/or guiding the movement of an underground boring tool. In one aspect, an improvement is provided forming part of an arrangement for tracking the position and/or guiding the boring tool using an electromagn...
US7357190 (B2), filed
Tue Sep 28 00:00:00 CDT 2004
, published
Tue Apr 15 00:00:00 CDT 2008
- SHELL OIL CO
An apparatus and method for coupling a tubular member to a preexisting structure.
US6871707 (B2), filed
Tue Apr 24 00:00:00 CDT 2001
, published
Tue Mar 29 00:00:00 CST 2005
- SHELL OIL CO
A hydrocarbon containing formation may be treated using an in situ thermal process. Hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to...
US6189392 (B1), filed
Thu Dec 16 00:00:00 CST 1999
, published
Tue Feb 20 00:00:00 CST 2001
- HALLIBURTON ENERGY SERV INC
A non-flashing fluid sampler for use in obtaining a well fluid sample. The sampler comprises a body defining a first chamber, a second chamber, a third chamber and a sampling port therein. The sampling port is in communication with the first chamber and with...
US6263966 (B1), filed
Wed Dec 23 00:00:00 CST 1998
, published
Tue Jul 24 00:00:00 CDT 2001
- HALLIBURTON ENERGY SERV INC
An improved expandable well screen and associated methods of servicing a subterranean well provide enhanced functionality, while increasing the convenience of manufacture and deployment of the screen, and reducing the screen's cost. In one described embodiment...
US6994161 (B2), filed
Tue Apr 24 00:00:00 CDT 2001
, published
Tue Feb 07 00:00:00 CST 2006
- BERCHENKO ILYA EMIL
A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, HSUB2/SUB, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation...
US6002258 (A), filed
Mon Apr 13 00:00:00 CDT 1998
, published
Tue Dec 14 00:00:00 CST 1999
- DIGITAL CONTROL INC
The present invention provides a locator/monitor capable of locating a boring tool and monitoring the progress of the tool for control purposes. The locator/monitor may be used in expedited locating methodology and straightforward calibration techniques of the...
US5698981 (A), filed
Thu Mar 14 00:00:00 CST 1996
, published
Tue Dec 16 00:00:00 CST 1997
- DIGITAL CONTROL INC
A method of establishing the location of at least a portion of a particular path taken by a boring tool within a given region is presented. The method includes the steps of establishing a reference path within the region and providing a portable locator and...
US6531694 (B2), filed
Tue Feb 06 00:00:00 CST 2001
, published
Tue Mar 11 00:00:00 CST 2003
- SENSOR HIGHWAY LTD
This invention provides a method for controlling production operations using fiber optic devices. An optical fiber carrying fiber-optic sensors is deployed downhole to provide information about downhole conditions. Parameters related to the chemicals being...
US6655464 (B2), filed
Mon Sep 10 00:00:00 CDT 2001
, published
Tue Dec 02 00:00:00 CST 2003
- MERLIN TECHNOLOGY INC
A system includes a drill string for at least partial use in the ground made up of a plurality of connectable pipe sections to align the innermost passages of attached ones of the sections. An assembly is provided including a pair of adapters for installation...
US4365787 (A), filed
Fri Dec 28 00:00:00 CST 1979
, published
Tue Dec 28 00:00:00 CST 1982
- DEEPSEA VENTURES INC
This invention provides a system for supporting a long, heavy dredge pipe string from a moving surface vessel, with a minimum of stress being applied to the pipe. The system comprises a gimbaled platform, supported over a central well through a vessel by two...
US6250402 (B1), filed
Tue Jun 01 00:00:00 CDT 1999
, published
Tue Jun 26 00:00:00 CDT 2001
- DIGITAL CONTROL INC
Specific apparatus and associated methods are described for use in establishing the positions of locating field detectors and for path mapping within a region for the purpose of tracking and/or guiding the movement of an underground boring tool. In one aspect,...
US4887668 (A), filed
Thu Nov 06 00:00:00 CST 1986
, published
Tue Dec 19 00:00:00 CST 1989
- TRI STATE OIL TOOLS INC
A cutting tool (22) having elongate cutter arms (36) mounted about a pivot pin (40) for outward swinging movement. Cutting blades (58, 60) are mounted on the lower ends of the cutter arms (36) and have a plurality of closely fitting hard carbide cutting...
US7086468 (B2), filed
Tue Apr 24 00:00:00 CDT 2001
, published
Tue Aug 08 00:00:00 CDT 2006
- SHELL OIL CO
A hydrocarbon containing formation may be treated using an in situ thermal process. Hydrocarbons, HSUB2/SUB, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the...
US5791422 (A), filed
Wed Mar 12 00:00:00 CST 1997
, published
Tue Aug 11 00:00:00 CDT 1998
- SMITH INTERNATIONAL
An improved hardfacing for teeth and other surfaces of milled tooth rock bits includes steel in the range of from 20 to 50 percent by weight, and filler in the range of from 50 to 80 percent by weight. The filler includes spherical cast tungsten carbide...
US6496008 (B1), filed
Thu Aug 17 00:00:00 CDT 2000
, published
Tue Dec 17 00:00:00 CST 2002
- DIGITAL CONTROL INC
A locator is described for tracking the position of a boring tool and/or one or more buried lines within a region. A flux plane is used to establish a flux vector to guide the portable locator to locate points in a dipole field. A locate line is located in the...
US6119778 (A), filed
Mon Oct 21 00:00:00 CDT 1996
, published
Tue Sep 19 00:00:00 CDT 2000
- BP AMOCO CORP
A method is disclosed for recovering methane from a solid carbonaceous subterranean formation having a production well in fluid communication with the formation and an injection well in fluid communication with the formation. In the method an oxygen-depleted...
US7231985 (B2), filed
Fri Sep 10 00:00:00 CDT 2004
, published
Tue Jun 19 00:00:00 CDT 2007
- SHELL OIL CO
An apparatus and method for coupling a tubular member to a preexisting structure. The tubular member is anchored to the preexisting structure and an expansion member is displaced relative to the tubular member to radially expand the tubular member.
US5960879 (A), filed
Wed Nov 12 00:00:00 CST 1997
, published
Tue Oct 05 00:00:00 CDT 1999
- HALLIBURTON ENERGY SERV INC
A gravel pack apparatus and associated method of completing subterranean wells provides convenient and economical gravel packing operations, permitting a sand control screen to be run into the well attached to the apparatus which is, in turn, attached to...
US4796699 (A), filed
Thu May 26 00:00:00 CDT 1988
, published
Tue Jan 10 00:00:00 CST 1989
- SCHLUMBERGER TECHNOLOGY CORP
US7159665 (B2), filed
Fri Jul 19 00:00:00 CDT 2002
, published
Tue Jan 09 00:00:00 CST 2007
- SHELL OIL CO
A wellbore casing formed by extruding a tubular liner off of a mandrel. The tubular liner and mandrel are positioned within a new section of a wellbore with the tubular liner in an overlapping relationship with an existing casing. A hardenable fluidic material...
US5868557 (A), filed
Thu Feb 26 00:00:00 CST 1998
, published
Tue Feb 09 00:00:00 CST 1999
Disclosed is a method and apparatus for the continuous remediation of a site contaminated with a hazardous substance. The remediation apparatus includes a material selectively permeable to the hazardous substance located at the site. Once isolated, the...
US6036860 (A), filed
Fri Jun 27 00:00:00 CDT 1997
, published
Tue Mar 14 00:00:00 CST 2000
Disclosed is a method and apparatus for the continuous remediation of a site contaminated with a hazardous substance. The remediation apparatus includes a material selectively permeable to the hazardous substance located at the site. Once isolated, the...
US6892819 (B2), filed
Tue Sep 25 00:00:00 CDT 2001
, published
Tue May 17 00:00:00 CDT 2005
- SHELL OIL CO
An apparatus including a support member, the support member including a first fluid passage, a mandrel coupled to the support member, the mandrel including: a second fluid passage, a tubular member coupled to the mandrel, and shoe coupled to the tubular liner,...
US5810084 (A), filed
Thu Feb 22 00:00:00 CST 1996
, published
Tue Sep 22 00:00:00 CDT 1998
- HALLIBURTON ENERGY SERV INC
A gravel pack apparatus and associated method of completing subterranean wells provides convenient and economical gravel packing operations, permitting a sand control screen to be run into the well attached to the apparatus which is, in turn, attached to...
US4341505 (A), filed
Thu Jun 19 00:00:00 CDT 1980
, published
Tue Jul 27 00:00:00 CDT 1982
- BENTLEY ARTHUR P
A sonic pressure wave surface operated pump for use in pumping liquid from low production wells. The pump includes an aboveground generator which produces sonic pressure waves of special character in a liquid column. The sonic pressure waves are transmitted by...
US4562892 (A), filed
Mon Jul 23 00:00:00 CDT 1984
, published
Tue Jan 07 00:00:00 CST 1986
- CDP LTD
A roller bit cutter comprises: (a) a tough, metallic, generally conical and fracture resistant core having a hollow interior, the core defining an axis, (b) an annular, metallic, radial bearing layer carried by said core at the interior thereof to support the...
