| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Drilling apparatus | US11894737 | 1937-01-04 | US2144687A | 1939-01-24 | PIPPIN JOHN W |
| 162 | Rotary core drill | US4488435 | 1935-10-14 | US2138006A | 1938-11-29 | HOWARD JOHN H |
| 163 | Retractable core barrel | US69376533 | 1933-10-16 | US2019978A | 1935-11-05 | HUNT THOMAS N |
| 164 | Core taking apparatus | US66305433 | 1933-03-27 | US1999428A | 1935-04-30 | FRED THRIFT |
| 165 | Sample taking apparatus | US62472032 | 1932-07-26 | US1948632A | 1934-02-27 | BARRETT GEORGE J; SOSTHENE ROBICHAUX |
| 166 | Sample taking device | US38868229 | 1929-08-27 | US1900618A | 1933-03-07 | SOSTHENE ROBICHAUX |
| 167 | Excavating for concrete piles, &c. | US1907380761 | 1907-06-25 | US872093A | 1907-11-26 | STEWART WILLIAM JOHN |
| 168 | A HEAD ASSEMBLY AND A VALVE SYSTEM FOR USE IN A CORE DRILLING SYSTEM | EP14807243.2 | 2014-05-30 | EP3004525B1 | 2018-07-25 | ATTIWELL, Paul |
| A valve system for an inner tube assembly is described. The inner tube assembly is arranged to be used in a drilling system to retrieve a core sample, and is arranged to be insertable into a drill string of the drilling system at a first end of the drill string. The valve system is arranged to be configurable in a first closed configuration, an open configuration, and a second closed configuration. The valve system moves to the first closed configuration when fluid is pumped along an interior region of the drill string towards the inner tube assembly in a direction from the first end of the drill string to the inner tube assembly. The valve system is arranged such that, when in the first closed configuration, a pressure of the fluid increases to facilitate deploying the inner tube assembly towards a second end of the drill string. The valve system moves to the open configuration in response to the inner tube assembly reaching a vicinity of the second end of the drill string and being prevented from moving further towards the second end of the drill string. The valve system is arranged such that, when in the open configuration, fluid can flow to a drill bit located at or near the second end of the drill string. The valve system moves to the second closed configuration when fluid is pumped along the interior region of the drill string towards the inner tube assembly in a direction from the second end of the drill string to the inner tube assembly. The valve system is arranged such that, when in the second closed configuration, the pressure of the fluid increases to facilitate retrieving the inner tube assembly from the vicinity of the second end of the drill string. | ||||||
| 169 | CLEANING AND SEPARATING FLUID AND DEBRIS FROM CORE SAMPLES AND CORING SYSTEMS | EP15829400 | 2015-07-30 | EP3143255A4 | 2018-01-24 | WESTACOTT DONALD CLIFFORD; LEE MATTHEW L |
| Coring tools including a core tube assembly; a carrier chamber defined within the core tube assembly for storing one or more core samples drilled from a downhole formation having a wellbore fluid therein, wherein the wellbore fluid has a wellbore fluid density; a non-hydrocarbon, non-reactive heavy weight fluid (“HWF”) present within the carrier chamber, the HWF exhibiting a HWF density of about 2 pounds per gallon greater than the wellbore fluid density; a pressure housing cover selectively rotatable between (1) an open position, where the one or more core samples are able to be inserted into the carrier chamber, and (2) a closed position, where the carrier chamber is sealed; and a cover activation mechanism coupled to the core tube assembly and operable to move the pressure housing cover between the closed position and the open position. | ||||||
| 170 | SAFETY LATCH FOR A DOWNHOLE TOOL | EP14719750.3 | 2014-04-25 | EP2992173B1 | 2017-11-15 | BÄCK, Göran; REID, Kenneth |
| A lockable overshot assembly for use in a wireline spearhead system for lowering and retrieving inner tube assemblies and other tools and equipment from a downhole location includes a pair of lifting dogs pivotally mounted to an overshot head on the lockable overshot assembly and configured for latching a spearhead. A locking arrangement is mounted into the elongated body and engagable within the lifting dogs, such that in a locked state the lifting dogs are in latched position and in an unlocked state, allows the lifting dogs to move to the release position. The locking arrangement is a pin, which can be moved laterally to be between the latching dogs to prevent them moving to the release position. | ||||||
| 171 | DRIVEN LATCH MECHANISM | EP10822658 | 2010-10-07 | EP2486223A4 | 2017-08-09 | DRENTH CHRISTOPHER L; IONDOV GEORGE; IBRAHIM GEORGE |
| Implementations include a core barrel assembly having a driven latch mechanism. The driven latch mechanism can lock the core barrel assembly axially and rotationally relative to a drill string. The driven latch mechanism can include a plurality of wedge members positioned on a plurality of driving surfaces. Rotation of the drill string can cause the plurality of wedge members to wedge between an inner diameter of the drill string and the plurality of driving surfaces, thereby rotationally locking the core barrel assembly relative to the drill string. Implementations of the present invention also include drilling systems including such driven latch mechanisms, and methods of retrieving a core sample using such drilling systems. | ||||||
| 172 | LOCKING MECHANISM FOR A GROUND DRILL | EP09715031.2 | 2009-02-17 | EP2257680B1 | 2017-07-12 | MILDREN, David; WESTWOOD, Cameron |
| 173 | HEAD ASSEMBLY | EP10745719 | 2010-02-22 | EP2401472A4 | 2017-06-28 | BEACH ANDREW; MCLEOD GAVIN; BLAKEWAY BEN |
| A latching system has a latch body, a latch carrier and two latch dogs. The latch dogs are retained in the latch carrier by two pins. The latch carrier is located within the latch body. The latch body has slots through which the latch dogs can extend. The pins pass through both latch dogs and through longitudinal slots in the latch carrier. The pins are fixed at their opposite ends to the latch body. When the latch carrier is moved axially the latch dogs move parallel to each other between: a latching position where the latch dogs extend from the latch body and latch carrier and can engage a latching mechanism; and a release position where the latch dogs retract inwardly. | ||||||
| 174 | CLEANING AND SEPARATING FLUID AND DEBRIS FROM CORE SAMPLES AND CORING SYSTEMS | EP15829400.9 | 2015-07-30 | EP3143255A1 | 2017-03-22 | WESTACOTT, Donald Clifford; LEE, Matthew L. |
| Coring tools including a core tube assembly; a carrier chamber defined within the core tube assembly for storing one or more core samples drilled from a downhole formation having a wellbore fluid therein, wherein the wellbore fluid has a wellbore fluid density; a non-hydrocarbon, non-reactive heavy weight fluid (“HWF”) present within the carrier chamber, the HWF exhibiting a HWF density of about 2 pounds per gallon greater than the wellbore fluid density; a pressure housing cover selectively rotatable between (1) an open position, where the one or more core samples are able to be inserted into the carrier chamber, and (2) a closed position, where the carrier chamber is sealed; and a cover activation mechanism coupled to the core tube assembly and operable to move the pressure housing cover between the closed position and the open position. | ||||||
| 175 | SEATED HAMMER APPARATUS FOR CORE SAMPLING | EP13852635 | 2013-11-08 | EP2917457A4 | 2016-08-10 | WEST GREGORY DONALD |
| A retrievable core sampling assembly for latching to or relative to a rotatable tubular housing of a core sampling apparatus to allow the capture and retrieval of a core from a subterranean formation, the assembly comprising or including: a core catcher barrel for a core, the barrel being rotationally isolated from the tubular housing and cooperable with a core taking bit coupled to the rotatable tubular housing to retain a core, and a hammer for providing impact to the core taking bit along a longitudinal impact path that is or is substantially decoupled from the core catcher barrel so that when latched, rotation and impact of the core taking bit captures and passes core material from the formation to the core catcher barrel in manner that isolates a core in the core catcher barrel from rotation and impact forces. | ||||||
| 176 | PRESSURE CORING ASSEMBLY AND METHOD | EP12757038 | 2012-03-09 | EP2686515A4 | 2016-04-20 | KINSELLA DOUG |
| A wireline or drill pipe retrievable coring tool with an inner barrel to receive a core, a bottom coring tool valve operable to seal off a bottom of the inner barrel and at least one pressure canister operable to receive fluid from the core in the inner barrel. The pressure canister is operable to significantly reduce the pressure inside the inner barrel utilizing an expandable chamber to receive fluid from the core as the tool is removed from the wellbore. In one embodiment, a bottom valve mechanism moves the cored formation materials out of the way of the bottom valve before the bottom valve is closed. | ||||||
| 177 | SAFETY LATCH FOR A DOWNHOLE TOOL | EP14719750.3 | 2014-04-25 | EP2992173A2 | 2016-03-09 | BÄCK, Göran; REID, Kenneth |
| A lockable overshot assembly for use in a wireline spearhead system for lowering and retrieving inner tube assemblies and other tools and equipment from a downhole location includes a pair of lifting dogs pivotally mounted to an overshot head on the lockable overshot assembly and configured for latching a spearhead. A locking arrangement is mounted into the elongated body and engagable within the lifting dogs, such that in a locked state the lifting dogs are in latched position and in an unlocked state, allows the lifting dogs to move to the release position. The locking arrangement is a pin, which can be moved laterally to be between the latching dogs to prevent them moving to the release position. | ||||||
| 178 | A RELEASE VALVE USED IN AN INNER TUBE ASSEMBLY FOR USE WITH A CORE BARREL | EP14704129.7 | 2014-02-11 | EP2971454A2 | 2016-01-20 | BÄCK, Göran |
| An inner tube assembly releasably latchable with a core barrel of a core drilling apparatus. The inner tube assembly includes a valve housing having a fluid flow port and a position guide to control a position of the valve body within the valve housing to open and close the port in response to a fluid pressure acting on the valve body. | ||||||
| 179 | UP-HOLE BUSHING AND CORE BARREL HEAD ASSEMBLY COMPRISING SAME | EP14773608.6 | 2014-03-11 | EP2971443A1 | 2016-01-20 | IONDOV, George |
| A bushing for positioning within a core barrel assembly during an up-hole drilling operation. | ||||||
| 180 | SONIC LATCH MECHANISM | EP09747597 | 2009-05-14 | EP2274499A4 | 2015-10-28 | ABLE ROBERT E; OOTHOUDT THOMAS J |
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