161 |
Tension/Collar/Reamer Assemblies And Methods |
US13180013 |
2011-07-11 |
US20110284291A1 |
2011-11-24 |
Richard A. Nichols; Bruce L. Taylor; Roger Pierce |
The present invention provides drilling assembles and methods that are especially useful for a bottom hole drilling assembly for drilling/reaming/ or other operations related to drilling a borehole through an earth formation. In one embodiment, the drilling assembly utilizes standard drill collars which are modified to accept force transfer sections. In another embodiment, the drilling assembly comprises a tension inducing sub which creates a force that may be used to place the bottom hole assembly or portions thereof in tension. In another embodiment, a reaming assembly is held in tension to provide a stiffer reaming assembly. |
162 |
HIGH FREQUENCY SURFACE TREATMENT METHODS AND APPARATUS TO EXTEND DOWNHOLE TOOL SURVIVABILITY |
US12774809 |
2010-05-06 |
US20110272134A1 |
2011-11-10 |
Indranil Roy; Manuel Marya; Rashmi Bhavsar; Chris Wilkinson |
A downhole device with compressive layer at the surface thereof. Such devices may be particularly well suited for survivability in the face of potentially long term exposure to a downhole environment. Techniques for forming protective compressive layers at the surfaces of such devices may include positioning devices within a chamber for bombardment by high frequency particles. As a manner of enhancing the compressive layer thickness and effectiveness, low temperature conditions may be applied to the device during the high frequency treatment. |
163 |
Method and apparatus for supporting a downhole component in a downhole drilling tool |
US11244267 |
2005-10-05 |
US08020634B2 |
2011-09-20 |
Robert Utter; Ian Silvester; Kyel Hodenfield; Steven J. Pringnitz |
An apparatus for supporting a retrievable downhole component within a drill collar includes a sleeve that is positionable about the downhole component and is mounted within the drill collar. The sleeve is adapted to limit the lateral movement of the downhole component. The sleeve includes a series of fins or is lined with an energy absorbing material which protects the component from shock and vibration while at the same time enables the component to be retrieved should the drill string become stuck in the borehole. |
164 |
FORMATION EVALUATION WHILE DRILLING |
US12496970 |
2009-07-02 |
US20100326727A1 |
2010-12-30 |
Steven G. Villareal; Reinhart Ciglenec; Michael J. Stucker; Khanh Duong |
An apparatus comprising a fluid communication device configured to extend from a drill string and establish fluid communication with a subterranean formation penetrated by a wellbore in which the drill string is positioned, wherein the drill string comprises a passage configured to conduct drilling mud and an opening extending through an outer surface thereof and into a cavity. A sample chamber is coupled within the cavity and is in selectable fluid communication with the formation via the fluid communication device. A retainer is configured to absorb lateral loading of the sample chamber within the cavity. |
165 |
Downhole tool sensor system and method |
US10904021 |
2004-10-19 |
US07775099B2 |
2010-08-17 |
Christopher C. Bogath; Kimi M. Ceridon; Kate I. Gabler; Minh Trang Chau |
An apparatus and method for determining forces on a downhole drilling tool is provided. The downhole tool is provided with a drill collar operatively connectable to the drilling tool, and a sensor mounted about the drill collar. The sensor is adapted to measure deformation of the drill collar whereby forces on the drilling tool are determined. The sensor may be part of a force measurement system, a strain gauge system or a drilling jar system. The drill collar is adapted to magnify and/or isolate the deformation applied to the drill string. |
166 |
Downhole tool sensor system and method |
US11970823 |
2008-01-08 |
US07757552B2 |
2010-07-20 |
Christopher C. Bogath; Kimi M. Ceridon; Kate I. Gabler; Minh Trang Chau |
An apparatus and method for determining forces on a downhole drilling tool is provided. The downhole tool is provided with a drill collar operatively connectable to the drilling tool, and a sensor mounted about the drill collar. The sensor is adapted to measure deformation of the drill collar whereby forces on the drilling tool are determined. The sensor may be part of a force measurement system, a strain gauge system or a drilling jar system. The drill collar is adapted to magnify and/or isolate the deformation applied to the drill string. |
167 |
Tension/collar/reamer assemblies and methods |
US12036648 |
2008-02-25 |
US07730971B2 |
2010-06-08 |
Richard A. Nichols; Bruce L. Taylor; Roger Pierce |
The present invention provides drilling assembles and methods that are especially useful for a bottom hole drilling assembly for drilling/reaming/or other operations related to drilling a borehole through an earth formation. In one embodiment, the drilling assembly utilizes standard drill collars which are modified to accept force transfer sections. In another embodiment, the drilling assembly comprises a tension inducing sub which creates a force that may be used to place the bottom hole assembly or portions thereof in tension. In another embodiment, a reaming assembly is held in tension to provide a stiffer reaming assembly. |
168 |
Spiral Ribbed Aluminum Drillpipe |
US12103061 |
2008-04-15 |
US20090194337A1 |
2009-08-06 |
David Indrupskiy; Vladimir Basovich; Dmitry Lubyanyy |
A spiral ribbed aluminum drillpipe has an intermediate portion with a plurality of ribs spiraling along its length. These ribs have active faces that are exposed by recessed areas. The active faces define incut angles relative to the pipe's outer surface for actively engaging slime/sediment material along a borehole wall. Bearings rotatably disposed on the pipe have a greater diameter than the ribbed intermediate portion or any tool joints on the drillpipe so that the bearings engage the borehole wall. The pipe's body is preferably composed of a lightweight alloy, such as aluminum alloy, whereas the bearings are preferably composed of steel and have wear resistant coating or bands. |
169 |
TENSION/COLLAR/REAMER ASSEMBLIES AND METHODS |
US12036648 |
2008-02-25 |
US20080142266A1 |
2008-06-19 |
Richard A. Nichols; Bruce L. Taylor; Roger Pierce |
The present invention provides drilling assembles and methods that are especially useful for a bottom hole drilling assembly for drilling/reaming/or other operations related to drilling a borehole through an earth formation. In one embodiment, the drilling assembly utilizes standard drill collars which are modified to accept force transfer sections. In another embodiment, the drilling assembly comprises a tension inducing sub which creates a force that may be used to place the bottom hole assembly or portions thereof in tension. In another embodiment, a reaming assembly is held in tension to provide a stiffer reaming assembly. |
170 |
Formation evaluation while drilling |
US11313004 |
2005-12-19 |
US07367394B2 |
2008-05-06 |
Steven G. Villareal; Reinhart Ciglenec; Michael J. Stucker; Khanh Duong |
A sampling while drilling tool positionable in a wellbore penetrating a subterranean formation is provided. The tool includes a drill collar, at least one sample chamber, at least one flowline and at least one cover. The drill collar is operatively connectable to a drill string of the sampling while drilling tool. The drill collar has at least one opening extending through an outer surface thereof and into a cavity. The drill collar has a passage therein for conducting mud therethrough. The sample chamber is positionable in the cavity of the drill collar. The flowline in the drill collar, the at least one flowline operatively connectable to the sample chamber for passing a downhole fluid thereto. The cover is positionable about the at least one opening of the drill collar whereby the sample chamber is removably secured therein. |
171 |
Formation Evaluation While Drilling |
US11942796 |
2007-11-20 |
US20080087470A1 |
2008-04-17 |
STEVEN VILLAREAL; JULIAN POP; KENT HARMS; VICTOR BOLZE; REINHART CIGLENEC; MICHAEL STUCKER; KHANH DUONG |
A sample module for a sampling while drilling tool includes a sample fluid flowline operatively connectable between a sample chamber and an inlet, for passing a downhole fluid. A primary piston divides the sample chamber into a sample volume and a buffer volume and includes a first face in fluid communication with the sample volume and a second face in fluid communication with the buffer volume. A secondary piston includes a first face in fluid communication with the buffer volume having buffer fluid disposed therein and a second face. |
172 |
Formation evaluation while drilling |
US11313004 |
2005-12-19 |
US20070137896A1 |
2007-06-21 |
Steven Villareal; Reinhart Ciglenec; Michael Stucker; Khanh Duong |
A sampling while drilling tool positionable in a wellbore penetrating a subterranean formation is provided. The tool includes a drill collar, at least one sample chamber, at least one flowline and at least one cover. The drill collar is operatively connectable to a drill string of the sampling while drilling tool. The drill collar has at least one opening extending through an outer surface thereof and into a cavity. The drill collar has a passage therein for conducting mud therethrough. The sample chamber is positionable in the cavity of the drill collar. The flowline in the drill collar, the at least one flowline operatively connectable to the sample chamber for passing a downhole fluid thereto. The cover is positionable about the at least one opening of the drill collar whereby the sample chamber is removably secured therein. |
173 |
Wear resistant tubular connection |
US10483501 |
2002-07-18 |
US07219727B2 |
2007-05-22 |
Maurice William Slack; Robert M. Tessari; Per G. Angman; Tommy M. Warren |
A wear resistant casing connection including a wear resistant portion on its exterior surface is taught. A casing connection having a controlled bend angle is also taught. |
174 |
Fatigue Resistant Rotary Shouldered Connection and Method |
US11307981 |
2006-03-01 |
US20060214421A1 |
2006-09-28 |
Andrei Muradov |
Threaded connections are provided with a thread form that permits the construction of enlarged root radii between adjacent threads. Relatively coarse thread leads formed along conical surfaces with relatively extended tapers cooperate with relatively tall thread heights and an enlarged root radius (or radii) to produce a fatigue resistant, rotary-shouldered connection that can be assembled with reasonably attainable high torque forces. The ratios between the thread lead, measured in threads per inch, as the numerator, and denominators comprising the untruncated thread height of the thread, and/or the root truncation and/or the root radius (or radii) are maintained at low values compared to those existing in conventional prior art connections. The ratio of the untruncated thread height to the root radius (or radii) is also retained at a relatively low value as compared to that existing in many prior art configurations. The connection design produces an unexpectedly high resistance to fatigue damage or failure. The connection may be employed in any rotary-shouldered connection and is particularly effective in preventing fatigue damage in the stiffer components of drill stem assemblies including single shoulder and double shoulder drill collar connections. |
175 |
Drilling assembly and method |
US10761892 |
2004-01-21 |
US07059429B2 |
2006-06-13 |
Bruce L. Taylor; Richard A. Nichols; Larry G. Palmer; Marvin Gregory |
The present invention provides a drilling assembly and method that is especially useful for a bottom hole drilling assembly for drilling a borehole through an earth formation. In one embodiment, the drilling assembly is preferably comprised of a tungsten alloy which is sufficiently plastic to be able to withstand the bending, torsional, and compressive stresses which occur in a bottom hole drilling assembly. The tungsten alloy weight section may be axially moveable with respect to an outer tubular and when mounted within the bottom hole assembly, acts to place the outer tubular in tension to provide a stiffer bottom hole assembly. |
176 |
Borehole stabilization while drilling |
US10460662 |
2003-06-13 |
US07013992B2 |
2006-03-21 |
Robert M. Tessari; Tommy M. Warren; Per G. Angman; Maurice William Slack |
A method for drilling in unconsolidated formation is taught. In particular, a method for borehole stabilization in an unconsolidated formation includes providing a drill string; rotating the drill string to drive a drill bit to drill a borehole having a borehole wall; driving the drill string against the borehole wall while rotating the drill string to plaster the surface of the borehole wall. |
177 |
Geological sample sub |
US09469183 |
1999-12-21 |
US06295867B1 |
2001-10-02 |
Don F. Mahaffey |
A sturdy tubular “sub” apparatus for collecting geological samples (Geological Sample-Sub or GSS) that may be entrained within a conventional drill string apparatus for conducting a drill-stem-test. The apparatus may be manufactured from conventional drill-collar stock and may be provided threads at each end of a standardized thread size so that it may be readily exchanged with or attached to other subs comprising the drill string apparatus. The drill string apparatus with the incorporated GSS may be lowered in a closed and empty state into a drilled hole whereupon it is packed off and the apparatus may be opened. A slit-like opening in the GSS permits entry of rock samples into the tubular apparatus, whereas baffles located within the apparatus near both ends prevent the escape of the samples as fluid in the hole rushes through the open drill string assembly. |
178 |
Horizontal drilling method and apparatus |
US598583 |
1990-10-15 |
US5042597A |
1991-08-27 |
William A. Rehm; Thomas D. Trunk; Timothy D. Baseflug; Steve L. Cromwell; Grady A. Hickman; Ralph D. Nickel; Michael S. Lyon |
A method and apparatus for drilling highly deviated wells is disclosed. A drilling assembly is attached to a drill string. The drilling assembly includes a bent sub, a pony collar attached to the bent sub, a motor with a bent housing, and a bit. Improved survey collars and bits are also disclosed. |
179 |
Variable depth grooved drill string member |
US524167 |
1990-05-16 |
US5040622A |
1991-08-20 |
Thomas E. Winship; Edmond I. Bailey |
An intermediate weight member (10) having a variable cross-section or bending moment of inertia as a function of member length is disclosed. At one end of the member (10) a slip and elevator section (14) is provided. A partially grooved section (16) of a diameter greater than that of the slip and elevator section extends between the slip and elevator section (24) and the other end of the member (10). The partially grooved section (16) includes two variable depth grooved sections (18, 20) separated by an ungrooved section (22). The ungrooved section (22) includes hardbanding rings (26, 28). The spiral grooves (30A, 30B, 30C) of variable depth grooved section (18, 20) vary in depth as a function of member length such that the bending moment of inertia varies as a function of length from the slip and elevator section (14) to the lower end of the member (10). Such variation changes from a constant bending moment of inertia at the slip and elevator section ( 14) to a substantially greater bending moment of inertia at the ungrooved section (22) and thence to a lower bending moment of inertia of a reduced diameter section (24) at its other end. |
180 |
Method of molding a composite drill collar |
US345914 |
1989-05-01 |
US5009826A |
1991-04-23 |
John H. Walker |
A method of molding thermoplastic material into a collar for use on a drill string is disclosed. Initially a precursor is constructed by rolling a sheet of thermoplastic material, containing long reinforcement fibers, into a tubular "roll" and placing the roll in a generally cylindrical open mold so as to align longitudinal axes of the roll and the open mold. A cylindrical mold core, which mates with the open mold to form a mold cavity, has an end piece perpendicular to the cylindrical portion for closing the mold. The mold core is forced, with correct alignment, into the open mold using high pressure which closes the mold and causes the thermoplastic material, containing long reinforcement fibers, to take the required shape. The thus formed part is cooled and ejected from the mold for use as the precursor. Final steps include machining the ends of the precursor to produce the desired collar. |