序号 | 专利名 | 申请号 | 申请日 | 公开(公告)号 | 公开(公告)日 | 发明人 |
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161 | REVERSE CIRCULATION DRILLING SYSTEM WITH BIT LOCKED UNDERREAMER ARMS | EP99937399 | 1999-07-23 | EP1101013A4 | 2002-06-26 | HOLTE ARDIS L |
An underreamer drill bit assembly including a pilot bit (82) and extendable underreamer arms (88) operatively connected to the pilot bit (82). The underreaming arms (88) have an extended position for underreaming, and a retracted position in which the overall diameter of the underreamer drill bit assembly is less than the inside diameter of the well casing, permitting the entire bit assembly to be withdrawn through the well casing. In another aspect of the invention, the bit assembly is operatively connected to a dual wall pipe assembly (12). A supply of compressed air is conducted through the annulus (24) of the dual wall pipe assembly (12) to a down hole pneumatic hammer (13). Exhaust air from the down hole hammer is directed to the bit assembly for continuous removal of drilling debris through a central evacuation tube (43) of the dual wall pipe assembly. In another aspect of the invention, a pressurized, incompressible fluid is injected into the annulus between the well casing and the downhole pneumatic hammer. | ||||||
162 | REVERSE CIRCULATION DRILLING SYSTEM WITH BIT LOCKED UNDERREAMER ARMS | EP98906021.0 | 1998-01-28 | EP0960254A1 | 1999-12-01 | Holte, Ardis L. |
A reverse circulation, pneumatic drilling assembly (10) wherein the bit assembly (11) is operatively connected to a dual wall pipe assembly (12). A supply of compressed air is conducted through the annulus of the dual wall pipe assembly (12) to a downhole pneumatic hammer (17). Exhaust air from the downhole pneumatic hammer is directed to the bit assembly (11) for continuous removal of drilling debris through a central evacuation tube of the dual wall pipe assembly (12). | ||||||
163 | Bohrwerkzeug | EP99810121.6 | 1999-02-12 | EP0941793A2 | 1999-09-15 | Kleine, Werner; Bongers-Ambrosius, Hans-Werner |
Ein Bohrwerkzeug zur Erstellung von Bohrlöchern in Gestein, Beton, Mauerwerk und dergleichen weist einen hülsenförmigen Schaft (12) auf, der eine an beiden Endabschnitten des Schafts in Öffnungen (14) mündenden, axial verlaufende Durchgangsbohrung besitzt. An seinem einen Längsende ist der hülsenförmige Schaft (12) mit einem Einsteckende für den Anschluss an ein Bohrgerät ausgestattet. Am gegenüberliegenden freien Vorderende trägt er einen Schneiden (16) aufweisenden Bohrkopf (15) aus Schneidwerkstoff, der in wenigstens einem, vorzugsweise etwa radial verlaufenden Schlitz (19) geführt ist. Der in den Schaft (12) eingebettete Abschnitt des Bohrkopfs (15) ist über einen wesentlichen Teil seines Umfangs in flächiger Anlage zum Material des Schaftes und fest mit dem Schaftmaterial verbunden. |
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164 | Dry pneumatic system for hard rock shaft drilling | EP90314348.5 | 1990-12-27 | EP0438920B1 | 1994-10-26 | McBride Sinclair, Kirk; England, John Richard |
165 | Verfahren zum Bohren von Gesteins- und Kiesböden sowie Gesteinsbohrer zur Ausführung des Verfahrens | EP84110110.8 | 1984-08-24 | EP0141117B2 | 1993-09-22 | Weber, Walter |
166 | Bohrkopf einer Horizontal-Vortriebsmaschine | EP90112894.2 | 1990-07-06 | EP0465685A1 | 1992-01-15 | Buschmeier, Dieter |
Ein Bohrkopf einer Horizontal-Vortriebsmaschine umfaßt einen Hohlzylinder (1) als Bohrkopf-Außenmantel, dessen Stirnseite eine drehgetriebene Werkzeugscheibe (5) mit einem Durchbruch (14) hat, in den ein Schälmesser (15) eingesetzt ist. An einen Zylinderboden ist eine Abführleitung (33,33') für abgetragenes Bohrgut angeschlossen, sowie eine Druckmittelzuführung (32) für die Bohrgut-Abförderung. Werkzeugscheibe und Zylinderboden sind koaxial aneinanderliegend derart angeordnet, daß sich die Werkzeugscheibe (5) auf dem feststehenden Zylinderboden (2) dreht. In gemeinsame Anlageflächen von Werkzeugscheibe und Zylinderboden sind miteinander korrespondierende konzentrische Nuten so eingeformt, daß sie eine Ringkammer (13) bilden, in welche der Durchbruch (14) in der Werkzeugscheibe sowie die Druckmittelzufuhr (32) mündet und aus der wenigstens eine Abführleitung (33) ausmündet, wobei eine Ausmündung an jeweils einer der Stirnflächen einer die Form eines gekrümmten Zylinders aufweisenden Ausfüllung (22) angeordnet ist, welche, an dem Zylinderboden angeordnet, einen Abschnitt vorbestimmter Länge der Ringkammer (13) vollständig ausfüllt. |
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167 | Dry pneumatic system for hard rock shaft drilling | EP90314348.5 | 1990-12-27 | EP0438920A1 | 1991-07-31 | McBride Sinclair, Kirk; England, John Richard |
A dry, vertical shaft drilling system including an inverted raiseboring cutterhead (12) fitted with air nozzles (42) and vacuum pickups. Weights (16) are detachably stacked above the cutterhead. Cuttings are extracted through the weights into a swivel (26) circumscribing the drill string (20). The swivel is a transition from the rotating cutterhead to the stationary extraction riser pipes (18) disposed above the swivel. Non-rotating stabilizers stabilize the drill string. |
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168 | A DRILL FOR ROCK AND CONCRETE | EP88908402.0 | 1988-08-16 | EP0429444A1 | 1991-06-05 | SCHAGERSTROM, Tonie |
Lors d'opérations de forage dans la roche et le béton, on utilise un foret comportant à son extrémité antérieure un organe coupantqui est destiné à être mis en rotation. Le foret comprend un tube à paroi mince (11) dont la cavité centrale (20) est formée de sorte que les ouvertures (22 et 23) sont pratiquées adjacentes à la mèche coupante située à l'avant (12) sur les deux côtés de la mèche. La cavité centrale (20) communique par sa partie postérieure avec une ou plusieurs ouvertures (28) ménagées dans une pièce (13) fixée à une tige et la pièce (13) coopère à son tour avec un manchon circonvoisin (26) de façon à former un raccord d'aspiration pour l'aspiration de la poussière de roche hors du trou de forage. | ||||||
169 | Down-the-hole drill hammer | EP88303089.2 | 1988-04-07 | EP0288180A3 | 1989-11-23 | Seismic Supply International Pty Ltd |
A valveless-type down-the-hole hammer drill which has an inner tube (115) extending from the upper end of the hammer body (111) into a central opening in a cutter bit (113) reciprocably mounted in a chuck (112) on the opposite end of the hammer body. High pressure fluid is supplied to the interior of the inner tube (115) and a piston (125) surrounding the inner tube (115) has internal surfaces controlling connection of a port (115a) to chambers (126, 127) above and below the piston. The external surface of the piston controls connection of these chambers to an exhaust port (112b). A valve sleeve (112c) on the chuck (112) coacts with the piston in this respect. |
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170 | Verfahren zum Bohren von Gesteins- und Kiesböden sowie Gesteinsbohrer zur Ausführung des Verfahrens | EP84110110.8 | 1984-08-24 | EP0141117A1 | 1985-05-15 | Weber, Walter |
Die Spüleinrichtung für Gesteins- und Kiesbohrer weist eine Ringdüse (10) zum Erzeugen einer dem Bohrvorschub entgegengesetzt gerischteten Luftströmung auf, welche die Bohrstange (6) mindestens annähernd ringförmig beströmt. Der innere Düsenmantel (14) erweitert sich in Strömungsrichtung (15), wobei die Erweiterung sich über den äusseren Düsenmantel (17) hinaus erstreckt und einen Teil des Bohrgestängemantels (9) bildet. Die Düsenkammer (19) verengt sich am Düsenmund (18). Diese Spüleinrichtung für Gesteins-und Kiesbohrer erlaubt, grosse spezifische Bohrleistungen zu erreichen und mühelos grössere Bohrtiefen von einigen 10 m zu bohren. Sie gestattet ferner, auch grössere Körner von beispielsweise 20 mm Durchmesser pneumatisch aus dem Bohrloch zu fördern. |
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171 | Bohrer, insbesondere Drehschlagbohrer | EP81107412.9 | 1981-09-18 | EP0048908B1 | 1985-05-15 | Klaissle, Siegfried; Moser, Bernhard |
172 | Method and apparatus for lubricating a drill bit | EP83306325.8 | 1983-10-18 | EP0106701A2 | 1984-04-25 | Drummond, Donald David; Wood, Roy Wilbert; Johnsey, Walter Frank |
A method and apparatus for providing a flow of lubricating fluid from a surface-mounted lubricating fluid source (20) through a rotatable drill pipe (16) to rotary cutting cones of a rotary drill bit (12) for drilling in an underground formation, including pump means (24) for providing a flow of lubricating fluid from the fluid source to an end of the drill pipe. Drill pipe conduit means extending along the length of the drill pipe is provided for receiving the flow of lubricating fluid and for directing the lubricating fluid flow along the drill pipe to the drill bit. Distribution conduit means at the drill bit extends from the drill pipe conduit means to the cutting cones and receives the flow of lubricating fluid from the drill pipe conduit means for directing the lubricating fluid flow to the cutting cones for lubrication thereof. |
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173 | Drill bit assembly | EP83306324.1 | 1983-10-18 | EP0106700A2 | 1984-04-25 | Drummond, Donald David; Wood, Roy Wilbert; Johnsey, Walter Frank |
@ A drill bit assembly (10) for a rotary drill having a source of fluid under pressure and three bearing mounted rotary cutting cones (22) for drilling into relatively hard material comprises an elongated housing (12) with a first end (32) adapted for engagement with the drill and a second end including the cutting cones or tools for engagement with the material to be drilled. A plenum chamber (50) is provided within the housing for receiving pressurized fluid and for dividing the pressurized fluid into three portions. A first portion of the pressurized fluid is directed downwardly (via 28) for impingement upon the material being drilled to pick up and remove dust and cuttings from the vicinity of the cutting cones. A second flow of the pressurized fluid is directed upwardly (via 54) to remove the dust and cuttings from the drill hole. The third flow of fluid is directed (via 94) through the cutting cone bearings (24) to cool the bearings during the drilling operation. Storage means (68) is also provided within the housing for receiving and storing a supply of lubricating fluid, the lubricating fluid flowing through a distribution conduit (60b) to the cutting cone bearings for lubrication thereof. |
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174 | Bohrer, insbesondere Drehschlagbohrer | EP81107412.9 | 1981-09-18 | EP0048908A1 | 1982-04-07 | Klaissle, Siegfried; Moser, Bernhard |
Der Bohrer hat zum Absaugen von Bohrmehl und Staub eine Absaugbohrung (3), die in eine Eintrittsöffnung (15) in der Stirnfläche (14, 14') des Bohrkopfes (8) mündet. Um Verstopfungen zu vermeiden, sind die Eintrittsöffnung (15) und das Mündungsende der Absaugbohrung im Vergleich zu deren Querschnitt verengt. Die Absaugbohrung (3) verläuft geradlinig und Spitzwinklig zur Bohrerachse (6) und ergibt darum eine nur geringfügige Schwächung des Bohrerquerschnittes. Als Austrittsöffnung für das Bohrmehl kann eine Querbohrung (7) vorgesehen sein, an der der Sog erzeugt w rd. Der Einspannschaft (5) kann dann aus Vollmaterial bestehen, wobei der Bohrer einstückig ausgebildet sein kann, weil die Absaugbohrung (3) vom Bohrerkopf (8) her ausgeführt wird. |
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175 | DRILL BIT | PCT/UA2010000054 | 2010-09-02 | WO2011028193A3 | 2011-07-07 | DOBROLYUBOV LEONID BORISOVICH; DOBROLYUBOVA IRINA GRIGORIEVNA; SNEGOVOI VYACHESLAV VICTOROVICH; STEPANIUK ANATOLYI IVANOVYCH; STEPANIUK YURYI ANATOLYEVICH |
The invention relates to a rock-destroying tool, more specifically to roller drill bits with air drilling ability and can be used for drilling of rocks of high hardness. The drill bit is comprising a body and rock-destroying elements with the equipment mounted on the body one inside the other by means of bearing supports, wherein the one, inwardly assembled, is located at an angle relatively to the axis of the drill bit, and the outer one is located in the opposite direction of the axis of the drill bit. The increase of the service life, high efficiency and commonality are ensured due to the fact that the equipment of the rock-destroying elements is introduced as replaceable jet nozzles made of hardwearing material and provided with cutters made of wolframite-cobalt based alloy, on the top of that the bearing support of each rock-destroying element is furnished with the device to adjust axial play value. | ||||||
176 | METHOD AND APPARATUS FOR FORMATION DAMAGE REMOVAL | PCT/CA0101082 | 2001-07-26 | WO0210546A2 | 2002-02-07 | SASK DAVID |
A method of treating an underground formation that has been penetrated by a well, the well having a wellbore. The method comprising the steps of lowering a valve into the well until the valve is adjacent the formation with the valve being placed to control flow of fluid between the formation and the wellbore, establishing a pressure differential across the valve; and selectively and repeatedly opening and closing the valve to cause cyclical pressure variation in the formation and induce surges of fluid from the formation into the wellbore. Apparatus for carrying out the method is also disclosed. A method of operating a downhole valve is also disclosed. A method of formation evaluation is also disclosed. | ||||||
177 | MASONRY CORING SYSTEM | PCT/US9201997 | 1992-03-12 | WO9216712A3 | 1992-10-29 | MOHLENHOFF WILLIAM; COX DENNIS |
A masonry coring system (10) for drilling vertical holes in a masonry wall comprises a drill bit (12) in the form of a thin-walled cylinder having a cutting end face, a plurality of cutting elements (14), and a core breaker (26) located within the interior of the cylinder. The coring system (10) further comprises a driver plate (18), a driver shaft (20) having a small axial hole (22) therein fastened to the upper surface of the driver plate (18), a hydraulic motor (24) to rotate the driver shaft (20), a non-rotating plastic pipe (28) slightly larger than and surrounding the driver shaft (20), the plastic pipe (28) resting on the driver plate (18) and containing a plurality of holes (32) located at the end near the driver plate (18). An air compressor (42) forces compressed air through the axial hole (22) in the driver shaft (20). An evacuation system withdraws the drilling dust through the annulus between the driver shaft (20) and pipe (28) and into a dust collection means (38). | ||||||
178 | MASONRY CORING SYSTEM | PCT/US9201997 | 1992-03-12 | WO9216712A2 | 1992-10-01 | MOHLENHOFF WILLIAM; COX DENNIS |
A masonry coring system for drilling vertical holes in a masonry wall comprises a drill bit in the form of a thin-walled cylinder having a cutting end face, a plurality of cutting elements fastened to the cutting end face, and a core breaker located within the interior of the cylinder. The coring system further comprises a driver plate fastened to the drill bit opposite the cutting end face, a driver shaft having a small axial hole therein fastened to the upper surface of the driver plate, a hydraulic motor to rotate the driver shaft, a non-rotating plastic pipe slightly larger than and surrounding the driver shaft, the plastic pipe resting on the driver plate and containing a plurality of holes located at the end near the driver plate. An air compressor forces compressed air through the axial hole in the driver shaft. An evacuation system withdraws the drilling dust through the annulus between the driver shaft and pipe and into a dust collection means. | ||||||
179 | Vortex tube cooler | US14917627 | 2014-11-18 | US10151515B2 | 2018-12-11 | Kangping Chen; Ruijin Chen |
A vortex tube cooling system for cooling compressed gas in air drilling assemblies comprises a gas source, a compressor, a plurality of vortex tube coolers and a drilling pipe in fluid communication with the plurality of vortex tube coolers. Each vortex tube cooler has an inlet nozzle for receiving compressed gas from the gas source into a swirl chamber. The swirl chamber is in fluid connection with a vortex tube defining a hot outlet, and a cold outlet. An inlet of the drilling pipe receives a cold air stream leaving the cold outlet of the plurality of vortex tube coolers. | ||||||
180 | WELL-DRILLING APPARATUS AND METHOD OF USE | US15918322 | 2018-03-12 | US20180266180A1 | 2018-09-20 | Russell C. Crawford |
Embodiments provide a well-drilling apparatus and a method of use. |