| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | Drill bit assembly having improved operational life | EP83306326.6 | 1983-10-18 | EP0106702A2 | 1984-04-25 | Drummond, Donald David; Wood, Roy Wilbert; Johnsey, Walter Frank |
A drill bit assembly has an elongated housing in which a drill is provided with a generally cylindrical shape for receiving an enlarged tool end with somewhat greater diameter, the tool having cutting cones for cutting a drill hole in material to be drilled. Air is fed to a plenum chamber within the housing out of which are fed two air flows. The first flow is directed to the region of the cutting cones and is of reduced magnitude sufficient only for removing dust and cuttings away from the bit assembly up along the sides of the bit. A plurality of vanes are provided on the housing to direct the first flow into a helical path the general pitch of the vanes. The vanes are caused to overlap one another in the direction of flow. A plurality of jet nozzles are provided from the plenum chamber at the side of the housing intermediate each pair of vanes and aligned so that the second flow will be in line with the first flow and generally parallel to the vanes in the general direction of the drill end and away from the cutting cones. Centrifugal force thus imparted keeps particles away from the drill bit and the pipe extensions and thereby reduces wear. |
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| 122 | ROCK DRILLING RIG AND METHOD FOR DRILLING | EP08861896.2 | 2008-12-15 | EP2220336B1 | 2017-04-26 | SORMUNEN, Tapani; JUUJÄRVI, Kari |
| 123 | METHOD AND APPARATUS FOR DOWN-THE-HOLE DRILLING | EP09838697 | 2009-10-27 | EP2382368A4 | 2016-09-14 | AHONEN JUKKA |
| 124 | CONTROL OF MANAGED PRESSURE DRILLING | EP13861103.3 | 2013-12-05 | EP2929122A1 | 2015-10-14 | HAVRE, Kjetil; JOHNSON, Ashley Bernard; RINGER, Maurice; ALDRED, Walter David |
| Method for controlling bottomhole pressure in a borehole during managed pressure drilling. In the drilling procedure fluid is circulated down a drillstring and and to surface through an annulus between the drillstring and an inner-wall of the borehole. A compressor/pump is used to inject gas into the returning drilling fluid at a gas injection point. The method comprises receiving a target bottomhole pressure;determining actual bottomhole pressure during the procedure;and adjusting a variable as directed by a feedback controller,which operates to reduce the difference between the target pressure and the measured pressure. The manipulated variable may be one or any combination of: (1)pressure of drilling fluid at the entry of the fluid into the drillstring, (2) the flow rate of drilling fluid out of the drillstring into the annulus, (3)pressure of the gas exiting from the compressor, and (4) the injection rate of the gas. | ||||||
| 125 | STEERABLE GAS TURBODRILL | EP13784933.7 | 2013-03-15 | EP2817472A1 | 2014-12-31 | KOLLE, Kack, J. |
| A gas turbodrill with an adjustable bent housing for use in a spur lateral drilling application. The gas turbodrill includes a high-speed gas turbine, a gearbox assembly, a pivoting shaft connection point, a gimbal assembly comprising a hollow ball and socket joint, a bearing assembly and drill bit assembly. The gas turbodrill gimbal assembly enabling a bend through an angle of up to 5 degrees while drilling. Springs and the application of pressure will lock the bend in place once drilling commences to facilitate lateral drilling of the spur. | ||||||
| 126 | METHOD AND SYSTEM FOR CONTROLLING A COMPRESSOR AT A ROCK DRILLING APPARATUS AND A ROCK DRILLING APPARATUS | EP11820260.5 | 2011-08-25 | EP2609281A1 | 2013-07-03 | ALDÉN, Erik; AHLSTRÖM, Erik |
| The present invention relates to a control of a compressor (8) at a rock drilling apparatus, said rock drilling apparatus including a power source for driving a compressor (8) at a rock drilling process, said compressor (8) being arranged to operate according to a first mode and according to a second mode, wherein, in said first mode, the work produced by the compressor (8) is arranged to be controlled by controlling the rotation speed of said compressor (8), and wherein, in said second mode, the work produced by the compressor (8) is arranged to be controlled by controlling the air flow at the compressor inlet. The method includes determining a parameter value representing a demand of work from said compressor (8), controlling the compressor (8) according to said first mode when said parameter value representing a demand of work from said compressor (8) exceeds a first demand, and controlling the compressor (8) according to said second mode when said parameter value representing a demand of work from said compressor is lower than said first demand. The invention also relates to a system and a rock drilling apparatus. | ||||||
| 127 | AIR COMPRESSOR SYSTEM AND METHOD OF OPERATION | EP11772570.5 | 2011-04-19 | EP2561228A1 | 2013-02-27 | FIELD, Grant Andrew; TANNER, Simo; INGMARSSON, Karl |
| Air compressor systems, upgrade kits, computer readable medium, and methods for controlling an air compressor for improved performance. The methods may include receiving a working air requirement; determining an estimated air pressure of the air compressor to deliver the working air requirement; measuring a pressure of the air compressor; comparing the measured pressure with the calculated estimated air pressure; if the measured pressure of the air compressor is greater than the determined estimated air pressure by a predetermined greater amount, then decreasing an output control of the air compressor; and if the measured pressure of the air compressor is less than the calculated estimated air pressure by a predetermined lesser amount then increasing the output control of the air compressor. The air compressor may be controlled based on a measured pressure of delivered working air. An oil control system may shut off oil to parts of the air compressor. | ||||||
| 128 | METHOD AND APPARATUS FOR DOWN-THE-HOLE DRILLING | EP09838697.2 | 2009-10-27 | EP2382368A1 | 2011-11-02 | AHONEN, Jukka |
| The invention relates to a method and apparatus for down-the- hole drilling, the drilling being carried out by an apparatus, having a drilling device (1) that comprises a casing part (2) and an essentially inside thereof existing drilling unit (3), at the drilling head of which there are at least first drilling means (4) for drilling a centre hole, second drilling means (5) for reaming the centre hole for the casing part (2) and a flushing flow arrangement (6) that comprises first flushing means (6a) for leading of a flushing medium onto a drilling surface (P) and second flushing means (6b) for returning of the flushing medium and drilling waste at least partly internally inside the casing part (2). The first drilling means (4) are removably coupled with the second drilling means (5) in order to enable removal thereof from the hole. The casing part (2) is arranged to be drawn into a hole to be drilled by the drilling unit (3). The flushing medium is being brought onto the drilling surface (P) and returned therefrom by axially directed (s) flow arrangements (6a; 6a', 6b; 6b'), disposed in a cross-section view, on an outer periphery of the first drilling means (4) and/or in an inner periphery of the second drilling means (5). | ||||||
| 129 | ROCK DRILLING RIG AND METHOD FOR DRILLING | EP08861896.2 | 2008-12-15 | EP2220336A1 | 2010-08-25 | SORMUNEN, Tapani; JUUJÄRVI, Kari |
| The invention relates to a rock drilling rigand a method of drilling rock. The rock drilling rig (2) comprises a flushing system with two or more compressors (9a, 9b) for generating the required compressed air for the flushing. The flushing air is conveyed along a flushing duct (11) to a rock drill machine (5) and further along a tool (12) into a drill hole (10). The rock drilling rig comprises a driving engine (8) arranged via a transmission device (16) to operate the compressors. Transmission to one or more compressors can be disconnected when the need forflushing air is small. | ||||||
| 130 | Underbalanced drilling method into a gas-bearing formation | EP06252153.9 | 2006-04-20 | EP1847679A1 | 2007-10-24 | The designation of the inventor has not yet been filed |
A method of creating a second wellbore section (19), penetrating a subterranean earth formation having at least one gas-bearing zone (3), from a selected location in an existing first wellbore section (1) using a remotely-controlled drilling device (13) under underbalanced drilling conditions, which method comprises: |
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| 131 | UNDERBALANCED PERFORATION | EP00964443.6 | 2000-09-29 | EP1220972B1 | 2003-12-10 | ANDERSON, James |
| 132 | UNDERBALANCED PERFORATION | EP00964443.6 | 2000-09-29 | EP1220972A1 | 2002-07-10 | ANDERSON, James |
| There is disclosed a method of initiating production of hydrocarbons from a well having a column of liquid to provide a hydrostatic head. The method comprises inserting a tubular member inside a casing to a required depth in the liquid to define a chamber, then sealing the chamber from the outside environment. A gaseous material is then supplied under pressure to the chamber to create a pressure differential between the chamber and the outside environment, and cause the liquid to be displaced and flow along a flow conduit. The displaced liquid is collected and the casing perforated to enable hydrocarbons to flow. An apparatus is provided and includes a tubular member for insertion into the well casing, means for sealing the chamber, gas supply means to supply gas under pressure to the chamber, fluid flow means to allow collection of displaced liquid, and means to perforate the casing. | ||||||
| 133 | REVERSE CIRCULATION DRILLING SYSTEM WITH BIT LOCKED UNDERREAMER ARMS | EP99937399.6 | 1999-07-23 | EP1101013A1 | 2001-05-23 | 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. | ||||||
| 134 | REVERSE CIRCULATION DRILLING SYSTEM WITH BIT LOCKED UNDERREAMER ARMS | EP98906021 | 1998-01-28 | EP0960254A4 | 2000-11-22 | 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). | ||||||
| 135 | SYSTEM, METHOD AND CUTTERHEAD FOR DRY FULL-AREA DRILLING | EP95909171.1 | 1995-02-01 | EP0741834B1 | 2000-09-13 | HAUGEN, Karl, Thorbjörn; LÖVGREN, Gert, Axel; BROLUND, Stig-Ake; KÄLLVIK, Roland |
| In a method for use in dry, rotary, crushing full-area drilling, use is made of suction air alone for removing cuttings produced during drillings. To carry out the method, two suction nozzles (13) are arranged on the underside of a cutterhead (1). These nozzles together have a substantially diametrical extent and the length of a radius on the cutterhead and are provided with suction intakes (14A) in the vicinity of the periphery of the cutterhead. The suction intakes (14A) are connectible a common suction channel (11) in the drill string (6) of the cutterhead. The suction channel (11) has substantially constant diameter. | ||||||
| 136 | DRILL BIT WITH SET OF UNDERREAMER ARMS | EP97932181 | 1997-06-11 | EP0847477A4 | 1999-06-09 | HOLTE ARDIS L |
| A drill bit assembly (1) includes a driver (2) adapted for attachment to a down hole pneumatic hammer. A pilot bit (30) is coupled to the driver (2) in a manner permitting rotational and axial movement between driver (2) and pilot bit (30). A series of underreamer arms (19) are disposed intermediate the driver (2) and the pilot bit (30) and engage a centrally disposed cam block (18) on the pilot bit (30). Pivot pins (21) of the underreamer arms (19) are journaled in and move with the driver (2) during partial rotation of the driver during arm deployment and retraction. Passageways (39) in the driver and pilot bit direct compressed air to the working surface of the bit for discharging particles upwardly through channels (41) in the bit and driver. Inclined surfaces (23a) on the underreamer arms (19) cooperate with the lower end of a casing (C) to contribute to arm retraction prior to removal of the assembly through the casing. | ||||||
| 137 | Method for reinforcing a masonry wall | EP92910084.0 | 1992-03-12 | EP0678149B1 | 1998-09-23 | 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. | ||||||
| 138 | DRILL BIT WITH SET OF UNDERREAMER ARMS | EP97932181.0 | 1997-06-11 | EP0847477A1 | 1998-06-17 | Holte, Ardis L. |
| A drill bit assembly (1) includes a driver (2) adapted for attachment to a down hole pneumatic hammer. A pilot bit (30) is coupled to the driver (2) in a manner permitting rotational and axial movement between driver (2) and pilot bit (30). A series of underreamer arms (19) are disposed intermediate the driver (2) and the pilot bit (30) and engage a centrally disposed cam block (18) on the pilot bit (30). Pivot pins (21) of the underreamer arms (19) are journaled in and move with the driver (2) during partial rotation of the driver during arm deployment and retraction. Passageways (39) in the driver and pilot bit direct compressed air to the working surface of the bit for discharging particles upwardly through channels (41) in the bit and driver. Inclined surfaces (23a) on the underreamer arms (19) cooperate with the lower end of a casing (C) to contribute to arm retraction prior to removal of the assembly through the casing. | ||||||
| 139 | SYSTEM, METHOD AND CUTTERHEAD FOR DRY FULL-AREA DRILLING | EP95909171.0 | 1995-02-01 | EP0741834A1 | 1996-11-13 | HAUGEN, Karl, Thorbjörn; LÖVGREN, Gert, Axel; BROLUND, Stig-Ake; KÄLLVIK, Roland |
| In a method for use in dry, rotary, crushing full-area drilling, use is made of suction air alone for removing cuttings produced during drillings. To carry out the method, two suction nozzles (13) are arranged on the underside of a cutterhead (1). These nozzles together have a substantially diametrical extent and the length of a radius on the cutterhead and are provided with suction intakes (14A) in the vicinity of the periphery of the cutterhead. The suction intakes (14A) are connectible a common suction channel (11) in the drill string (6) of the cutterhead. The suction channel (11) has substantially constant diameter. | ||||||
| 140 | MASONRY CORING SYSTEM | EP92910084.0 | 1992-03-12 | EP0678149A1 | 1995-10-25 | 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). | ||||||
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