Matches 1 - 50 out of 131 1 2 3 >


Match Document Document Title
8960281 Flowbore mounted sensor package  
Apparatus including a sensor-containing body is disposable within a flowbore of a downhole tool. The apparatus also comprises an adjustable engagement mechanism that is coupled to the body. The...
8672030 System for cementing tubulars comprising a mud motor  
A method and system for cementing a tubular and mud motor in a wellbore utilizing burst disks above the mud motor. The burst disks rupture to permit the cement to flow through the burst disks and...
8312942 Roller cone drill bits with improved fluid flow  
Roller cone drill bits operable to form a borehole. A number of support arms may extend from each drill bit. A cutter cone assembly may be mounted on each support arm. A number of cutting elements...
8100201 Rotary drill bit  
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...
8079427 Methods of forming earth-boring tools having features for affecting cuttings flow  
Methods of forming earth-boring tools include assembling a plurality of head sections about a longitudinal axis to form a bit body, rotatably mounting a cutter to a cutter bearing shaft of each...
7984772 Downhole centrifugal drilling fluid separator  
In one aspect of the invention, a downhole centrifugal drilling fluid separator has a bore within a tubular body comprising a central axis. The bore is formed to receive drilling fluid comprising...
7980332 Downhole centrifugal drilling fluid separator  
In one aspect of the invention, a downhole centrifugal drilling fluid separator has a bore within a tubular body comprising a central axis. The bore is formed to receive drilling fluid comprising...
7938203 Downhole centrifugal drilling fluid separator  
In one aspect of the invention, a downhole centrifugal drilling fluid separator has a bore within a tubular body comprising a central axis. The bore is formed to receive drilling fluid comprising...
7918292 Earth-boring tools having features for affecting cuttings flow  
An earth-boring bit has a bit body having a plurality of bit legs extending longitudinally therefrom, each bit leg comprising one or more groove regions formed along a laterally outer surface...
7913778 Rock bit with hydraulic configuration  
A drill bit for drilling through an earthen formation to form a borehole with a radius R. In an embodiment, the drill bit comprises a bit body having a central bit axis and including a pin end, an...
7694608 Method of manufacturing a matrix body drill bit  
A method of manufacturing an earth-boring bit having a fluid plenum and a plurality of fluid pathways includes modeling flow characteristics of the fluid plenum and the plurality of fluid...
7681668 Shrink-fit sleeve assembly for a drill bit, including nozzle assembly and method therefor  
A shrink-fit sleeve assembly comprising a bit body includes at least one sleeve port with a substantially tubular sleeve disposed therein and interferingly engaged therewith. The sleeve port...
7681670 Two-cone drill bit  
A two-cone drill bit with a hydraulic arrangement that can be used for one or more of the following: cleaning roller cones, impinging on a hole bottom, or inducing a helical flow field. A two-cone...
7484572 Roller cone drill bit with debris flow paths through associated support arms  
A roller cone drill bit having a bit body with at least one support arm extending therefrom. Each support arm may have an interior surface and an exterior surface with an associated spindle...
7325632 Nozzle bore for PDC bits  
An earth boring bit includes a bit body including plurality of PDC cutter elements and a fluid plenum connecting a fluid inlet to at least one fluid orifice. Furthermore, a ledge formed between a...
7252164 Cutting structure based hydraulics  
A drill bit configures hydraulic streams from the bit nozzles for the particular cutting structure to be cleaned based on the cutting structure location and geometry. The projected impingement...
7213661 Dual property hydraulic configuration  
A rotary cone rock bit includes one or more hole cleaning nozzles and one or more bit cleaning nozzles. The hole cleaning nozzles of one drill bit define a projected fluid path disposed at a...
7140454 Well drilling bit  
A well drilling bit having a bit body attachable to a tubular drill string, which bit body is internally provided with a passageway providing fluid communication, when the drill string is attached...
7131790 Boring and conduit/pipe system  
An extension rod has an interior end and an exterior end. The exterior end is formed with male screw threads. A primary bit has a cylindrical interior end and a conical exterior. Female threads at...
7128171 Hydrodynamic pump passages for rolling cone drill bit  
An earth boring bit has rotating cones with two lubricant passages to increase bearing capacity and cause lubricant circulation. A lubricant reservoir in the body supplies lubricant to passages...
7040423 Nozzle bore for high flow rates  
The present invention relates to a roller cone drill bit that has improved flow characteristics. The roller cone drill bit includes forming at least one relief region inside a bit body of the...
6971458 Drill bit  
A drill bit for drilling a borehole into an earth formation is provided. The drill bit has a central longitudinal axis and a bottom surface facing the borehole bottom during drilling with the...
6725947 Roller bits with bearing failure indication, and related methods, systems, and methods of manufacturing  
A rotary drill bit includes a bit body that includes a plurality of upright legs that terminate in an exterior bearing surface. At least one roller cutter is affixed to a corresponding exterior...
6581702 Three-cone rock bit with multi-ported non-plugging center jet nozzle and method  
A three-cone rock bit employing a non-plugging center jet nozzle with a plurality of staggered inlet orifices leading to side passageways to reduce bit balling. The nozzle defines a tapered cavity...
6527065 Superabrasive cutting elements for rotary drag bits configured for scooping a formation  
Cutting elements for use in a rotary drill bit are configured to facilitate positioning of the cutting elements at a positive rake angle with respect to the formation to enhance compressive...
6484823 Rock drill bit and a check valve therefor  
A rock-crushing rotary drill bit includes a body having a rock-crushing roller rotatably mounted thereon by bearings. The body includes a first flushing channel for conducting flushing fluid to...
6450270 Rotary cone bit for cutting removal  
An improved rotary cone bit includes a threaded end on a bit body for coupling to a drill string. The drill bit body includes two or more leg portions extending from one end thereof. From interval...
6290006 Apparatus and method for a roller bit using collimated jets sweeping separate bottom-hole tracks  
A roller cone jet-type drill bit with nozzles which direct collimated streams of mud at different angles, to sweep different radii of the hole bottom.
6227314 Inclined leg earth-boring bit  
An earth-boring bit has a body with a threaded pin on the upper end for connecting to a drill string. Bit legs are formed symmetrically on the exterior of the body and extend downward. The lower...
6142248 Reduced erosion nozzle system and method for the use of drill bits to reduce erosion  
Subterranean drill bits and particularly to nozzle features to be incorporated in subterranean bits. In one embodiment, the nozzle assembly of the invention defines a wear resistant structure...
6102135 Portable core sampler  
A portable core sampler includes a portable electric drill having an output rotary shaft connected detachably to a coupler shaft that supports a water swivel which connects a source of water to an...
6095261 Drill bit reverse circulation apparatus and method  
An improved bit body for a tri-cone drill bit has a bit body affixed to a terminal end of drilling string. The drilling string has at least one fluid passageway formed in its wall. The drilling...
6082473 Drill bit including non-plugging nozzle and method for removing cuttings from drilling tool  
A non-plugging nozzle and self-cleaning drilling tool incorporating the nozzle is provided. The nozzle has a body that defines a central passageway extending axially from the top to the bottom of...
6079507 Drill bits with enhanced hydraulic flow characteristics  
This invention discloses a drilling structure having a body defining at least one primary channel and at least one secondary channel therein to initiate and maintain recirculation of an amount of...
5755297 Rotary cone drill bit with integral stabilizers  
A rotary cone drill bit for forming a borehole having a bit body with an upper end portion adapted for connection to a drill string. A number of support arms extend from the bit body. Each support...
5699868 Rotary drill bits having nozzles to enhance recirculation  
A rotary drill bit for drilling holes in subsurface formations comprises a bit body having a leading face and a gauge region, and a plurality of blades formed on the leading face of the bit body...
5595255 Rotary cone drill bit with improved support arms  
A rotary cone drill bit for forming a borehole having a bit body with an upper end portion adapted for connection to a drill string. The drill bit rotates around a central axis of the body. A...
5562171 Anti-balling drill bit  
The invention concerns an anti-balling drill bit. The drill bit includes an approximately cylindrical steel body provided at one end with axial arms on which are mounted toothed conical wheels....
5553681 Rotary cone drill bit with angled ramps  
A rotary cone drill bit for forming a borehole having a bit body with an upper end portion adapted for connection to a drill string. A number of support arms extend from the bit body. Each support...
5513711 Sealed and lubricated rotary cone drill bit having improved seal protection  
A rotary cone drill bit (10) for forming a borehole includes a support arm-cutter assembly (26). A support arm (28) is integrally formed with the drill bit's body (22) with a spindle (30) machined...
5462128 Cutter bit for use in drilling operations  
Disclosed is a cutter bit (1) for use in drilling operations comprising a body (10) having a top portion (11) and a bottom portion (12), the bottom portion (12) being provided with cutting...
5452770 Rock bit and improved forging method for manufacturing thereof  
A method of manufacturing a roller cone type drill bit, or main body thereof, includes forging a monolithic main body forging comprising a shank blank extending longitudinally at one end and a...
5439067 Rock bit with enhanced fluid return area  
A rotary cone drill bit for forming a borehole having a one-piece bit body with a lower portion having a convex exterior surface and an upper portion adapted for connection to a drill string. A...
5355967 Underbalance jet pump drilling method  
A method for rotary drilling and removing cuttings provides a underbalanced drilling fluid pressure at the drilling face but overbalanced pressure in the wellbore. The preferred method uses a...
5220966 Drilling apparatus of the cutting and shearing type  
The drilling apparatus according to the invention contains a body (1) and rock-destroying organs (3) of the cutting and shearing type that are attached to the matrix (2) of the body. The body (1)...
5139098 Combined drill and underreamer tool  
A combined drill and underreamer tool capable of selectively drilling and underreaming a well hole on command, which includes a fluid distribution system wherein drilling mud under pressure is...
5111894 Uninterrupted drill bit  
A drill bit for drilling in the ground includes a pair of drilling cones having axes of rotation that converge near a drilling center of the bit. The cones each include a plurality of ridges or...
5096005 Hydraulic action for rotary drill bits  
A rotary drill bit (10) has fluid discharge nozzles (36A, 36B, 36C) positioned between adjacent pairs of roller cutters (20A, 20B, 20C). A fluid discharge nozzle (36A) provides a stream of...
5058690 Rock working tool  
Rock working tool for a tunnel boring machine. The tool comprises a shaft (34) with a central hole (35). A tool part (8,9) is rotatably journalled on the shaft. The tool is cooled through the...
5012876 Rotary drill bit providing separation of liquid from gas  
This invention relates to a rotary drill bit having a body with leg members, where each of the leg members has a projecting conical cutter receiving journal. Each conical cutter has an axially...

Matches 1 - 50 out of 131 1 2 3 >