patentstorm.us

Polycrystalline abrasive composite cutter

Patent Number: 8109350
Publication Date: 2012-02-07
Inventors: Fang, Zhigang Z.; Johnson, Stephen C.; Zhang, Haibo

A polycrystalline abrasive composite cutter, including a tool body with a top cutting surface and a flank surface. The composite cutter, joined to a substrate, constitute a shear cutter for a PDC bit, roller-cone bit insert, or other tool that can be highly useful for petroleum drilling or other applications. The body of the polycrystalline abrasive composite cutter includes a plurality of polycrystalline abrasive layers (90) and a plurality of arresting layers (100). The ...

Thick pointed superhard material

Patent Number: 8109349
Publication Date: 2012-02-07
Inventors: Bailey, John D.; Jepson, Jeff; Crockett, Ronald B.; Dahlgren, Scott; Hall, David R.

In one aspect of the invention, a high impact resistant tool includes a superhard material bonded to a cemented metal carbide substrate at a non-planar interface. The superhard material has a substantially pointed geometry with a sharp apex having a radius of curvature of 0.050 to 0.125 inches. The superhard material also has a thickness of 0.100 to 0.500 inches thickness from the apex to a central region of the cemented metal carbide ...

Down-the-hole hammer drill

Patent Number: 8109348
Publication Date: 2012-02-07
Inventors: Lorger, Tony; Lorger, Daniel Paul

There is provided a downhole hammer including a drill bit (2) retained by short (4) and long (5) drive pins in the bore of a driver chuck (1). The chuck (1) and bit (2) shank have machined longitudinal grooves (3), every second bit shank groove being blind and connected to the adjacent open groove by a short-pin length relief. The shorter pins (4) are inserted into the visible holes formed by the alignment of the open drill bit grooves ...

Core catcher and corer having it

Patent Number: 8109347
Publication Date: 2012-02-07
Inventors: Jhin, Jae Hwa; Kim, Jun Ho; Kim, Min Jun

The present invention relates to a core catcher and a corer having the same, and more particularly, to a core catcher provided with dual blade radial pins for preventing loss of sediments and a corer having the ...

Drill bit supporting multiple cutting elements with multiple cutter geometries and method of assembly

Patent Number: 8109346
Publication Date: 2012-02-07
Inventor: Mensa-Wilmot, Graham

A drill bit has cutting elements with multiple cutting surface geometries that are positioned so that their cutting profiles overlap, but do not completely contain or engulf one another. The different cutting surface geometries and the specific overlap create a zone of high density in the middle regions of the cutting profiles and low density in the periphery, resulting in a cutting profile that becomes sharper with increasing wear. Such an arrangement is more effective and stable as the ...

System and method for drilling a borehole

Patent Number: 8109345
Publication Date: 2012-02-07
Inventor: Jeffryes, Benjamin Peter

A system and method is provided for drilling a wellbore using a rotary drill bit with a bit body having a plurality of mechanical cutters to cut away formation material as the wellbore is formed and a directed energy mechanism to direct energy into the formation. The energy from the directed energy mechanism is used to enhance the cutting of the mechanical cutters by fracturing surrounding material to facilitate drilling in the direction of the directed ...

Excavation tool

Patent Number: 8104551
Publication Date: 2012-01-31
Inventor: Nakamura, Kazuyoshi

Provided is an excavation tool which can firmly fix a locking pin so that the locking pin does not move even in the case of an impact during excavation and/or the locking pin being pushed out in the insertion/removal direction.

The excavation tool (10) includes a tool body (20) having an attaching hole (32) and an attaching member (40).

The attaching member (40) is provided with an attaching shaft (45) inserted into the attaching hole ...

Methods for applying wear-resistant material to exterior surfaces of earth-boring tools and resulting structures

Patent Number: 8104550
Publication Date: 2012-01-31
Inventors: Roberts, Danielle V.; Gilmore, Kenneth E.; Doster, Michael L.; Overstreet, James L.; Welch, Robert M.; Morris, Mark E.

Earth-boring tools include wear-resistant materials disposed in at least one recess formed in an exterior surface of a body thereof. Exposed surfaces of the wear-resistant material are substantially level with exterior surfaces of the body adjacent the wear-resistant material. In some embodiments, recesses may be formed in formation-engaging surfaces of blades of earth-boring rotary tools, adjacent one or more inserts secured to bodies of earth-boring tools, or adjacent one or more cutting ...

Activating device for a downhole tool

Patent Number: 8104549
Publication Date: 2012-01-31
Inventor: Lee, Paul Bernard

An activating device is mounted in a drill string to control the activation and deactivation of an enlargement tool used for enlarging a bore hole. In order to assemble the activating device, pistons are mounted in passages and spline bars, in which plates are screwed, are then slid along T-slots of the body, through apertures of the pistons. In order to deploy the pistons and cutters, pressurized drilling fluid is applied to the inner faces of the pistons. When a pre-determined pressure ...

Shape memory alloy actuated steerable drilling tool

Patent Number: 8104548
Publication Date: 2012-01-31
Inventors: Smith, Leyland; Ma, Ning; Muller, Ralf J.

A rotary steerable apparatus is provided having an actuator for pushing the bit or pointing the bit that includes a shape memory alloy. An elongated form of the alloy, such as a wire or rod, is employed in a mechanism that applies force in a direction transverse to the wellbore in response to a change in length of the alloy. Temperature of the alloy is controlled to change shape and produce the desired force on pads for operating the apparatus. The apparatus may be used with downhole power ...

Diamond impregnated bits and method of using and manufacturing the same

Patent Number: 8100203
Publication Date: 2012-01-24
Inventors: Lockwood, Gregory T.; Fulenchek, Jonan

A drill bit that includes a body having a lower end face for engaging a rock formation, the end face having a plurality of raised ribs extending from the face of the bit body and separated by a plurality of channels therebetween; and at least one of the plurality of ribs having a cutting portion of the at least one rib comprising a first diamond impregnated matrix material and at least a portion of a gage surface region thereof comprising a second diamond impregnated matrix material, the ...

Fixed cutter bit with backup cutter elements on secondary blades

Patent Number: 8100202
Publication Date: 2012-01-24
Inventors: Durairajan, Bala; Hoffmaster, Carl M.; Azar, Michael G.; Bush, Kurt T.

In an embodiment, a drill bit for drilling a borehole comprises a bit body having a bit axis and a bit face. In addition, the drill bit comprises a primary blade extending radially along the bit face. Further, the drill bit comprises a plurality of primary cutter elements mounted to the primary blade. The primary blade is free of backup cutter elements. Still further, the drill bit comprises a secondary blade extending radially along the bit face. Moreover, the drill bit comprises a ...

Rotary drill bit

Patent Number: 8100201
Publication Date: 2012-01-24
Inventor: Borissov, Anatoli

A rotary drill bit (10) is provided for drilling a hole in a subsurface formation. The bit body (12) includes a plurality of axially extending ribs (16a, b, c and d) and a flow channel between adjacent ribs. A plurality of cutting elements are fixedly mounting on a respective one of the plurality of ribs. A plurality of flow nozzles (20a, b, c and d) direct fluid to a respective one of the plurality of cutting elements to clean and ...

Chuck assembly for a down-hole drill

Patent Number: 8100200
Publication Date: 2012-01-24
Inventor: Wolfer, Dale Richard

A chuck assembly, an assembly for an earth-boring drill assembly, and a method of retaining a drill bit for an earth-boring drill assembly, the drill assembly including a casing. The assembly includes a drill bit having a generally cylindrical head, a chuck connectable to the casing and operable to support the bit, the chuck having an outer surface with a radially-outwardly extending chuck ridge, an axially-extending first slot being defined in the ridge, a sleeve having an inner surface ...

Continuous fluid circulation valve for well drilling

Patent Number: 8100199
Publication Date: 2012-01-24
Inventor: Braddick, Britt O.

Fluid circulation valve (10) is provided for use with a well drilling operation, so that a drill joint may be added to or removed from the drill string while continuously circulating fluid into the well. Valve housing (12, 18) has a central flow path therein, a housing side port (87), and upper and lower threaded connectors for engagement with the drill joint and the drill string, respectively. A rotatable ball (30) is positioned within the flow path in the valve ...

Cuttings treatment and reuse

Patent Number: 8100198
Publication Date: 2012-01-24
Inventors: Candler, John; Fout, Gary E.; Clements, Kayli A.; Marchbanks, William

A method for treating drill cuttings including depositing drill cuttings in a desalinization cell, the desalinization cell having a high end, a low end, and a cuttings pad. The method further includes washing the drill cuttings in the desalinization cell with a liquid phase and removing a cuttings runoff from the drill cuttings. Also, a method for treating drill cuttings including depositing drill cuttings in a desalinator, the desalinator having a geometric structure having a perforated ...

Method and device for the production of bores

Patent Number: 8100197
Publication Date: 2012-01-24
Inventors: Warnicki, Rainer; Peisert, Andreas

A method and a device for the production of a bore with a special shape, for example a bore which deviates from a cylindrical shape or a bore with an undercut. First, a first bore portion is produced using an oscillatingly driven tool, the first bore portion having a shape deviating from a cylinder and having at least one projection projecting from the wall face of the first bore portion towards the bore center. Subsequently, when a bore with an undercut is to be produced, the tool is then ...

Method and apparatus for collecting drill bit performance data

Patent Number: 8100196
Publication Date: 2012-01-24
Inventors: Glasgow, Keith; Lutes, Paul J.; Trinh, Tu Tien; Pastusek, Paul E.; Pritchard, Daryl L.; Sullivan, Eric C.

Drill bits and methods for sampling sensor data associated with a state of a drill bit are disclosed. A drill bit for drilling a subterranean formation comprises a bit configured for receiving a data analysis module. The data analysis module comprises at least one sensor, a memory, and a processor. The processor is configured for executing computer instructions to filter information derived from sensor data in the drill bit to develop a piecewise polynomial curve of the sensor data. ...

Motor cooling radiators for use in downhole environments

Patent Number: 8100195
Publication Date: 2012-01-24
Inventors: Tao, Chen; Meyer, Thomas

Example motor cooling radiators for use in downhole environments are disclosed. A disclosed example radiator comprises a cylindrical housing having an annular passageway. The housing defines an inlet at a first end of the housing and an outlet at a second opposite end of the housing. A channel is arranged within the annular passageway of the housing along a spiral path to transport the first liquid and to define a spiral flow passageway between the inlet and the outlet for the second ...

Rotary drill bits and drilling tools having protective structures on longitudinally trailing surfaces

Patent Number: 8096373
Publication Date: 2012-01-17
Inventors: Kirkpatrick, Ben L.; Mayer, Scott E.; Patel, Suresh G.

A rotary drill bit or other drilling tool for drilling or reaming through subterranean formation and comprising a body comprising a distal end and gage areas near a proximal end thereof and comprising longitudinally upward extensions of a plurality of blades or legs. A longitudinally trailing, radially inwardly extending surface is associated with at least some gage pads or legs at the longitudinally trailing ends thereof. Protective structures in the form of superabrasive elements ...

Cutter geometry for increased bit life and bits incorporating the same

Patent Number: 8096372
Publication Date: 2012-01-17
Inventors: Cariveau, Peter T.; Huang, Sujian; Zhang, Youhe; Shen, Yuelin

An improved cutter for fixed cutter drill bits includes a base portion with a longitudinal axis that extends through a center of the base portion and a cutting face which is generally centered with the base portion. The cutting face has a periphery edge geometry comprising a first arcuate segment and a second arcuate segment spaced apart and arranged opposite each other with linear edge segments disposed there between forming sides of the cutting face. The cutting face spans a maximum ...

Method and apparatus for disposal of cuttings

Patent Number: 8096371
Publication Date: 2012-01-17
Inventors: Patterson, Michael; Shearer, Edward L.

A method and apparatus for disposing of drill cuttings 500 from an oil and/or gas well drilling platform 510, comprising (a) transporting the drill cuttings 520 to a cuttings collection area 530 on the platform 510; (b) providing a barge 10, the barge 10 having at least one storage area 30, a cover 100 operably connected to the at least one storage area 30, and covering the at least one storage area 30; (c) placing ...

Apparatus and method for producing soil elements underground

Patent Number: 8096370
Publication Date: 2012-01-17
Inventor: Schneider, Nikolaus

The invention relates to an apparatus and a method for producing nozzle jet columns underground comprising a bore and nozzle rod arrangement (1) for producing a borehole and a nozzle jet column in the region of the borehole, and a measuring device (14) for measuring the nozzle jet column, in particular the diameter of the nozzle jet column, the measuring device (14) being at least partially integrated into the bore and nozzle rod arrangement (1) so that it is ...