| 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 | 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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| 162 | Improvements in or relating to rotary drill bits | EP90312733.0 | 1990-11-22 | EP0435447A1 | 1991-07-03 | Barr, John Denzil |
A rotary drill bit comprises a bit body (10) having a shank (11) for connection to a drill string (12) and a passage (13) for supplying drilling fluid to the face of the bit, which carries a plurality of polycrystalline diamond preform cutting elements (15). In order to reduce bit whirl, the cutting elements are so disposed as to apply a resultant lateral imbalance force (16) to the bit as it rotates during drilling and the gauge of the bit body is provided with low friction bearing pads (20) to transmit said resultant lateral force to the sides of the borehole. Each low friction bearing pad includes an outwardly facing cavity which is connected to the passage (13) by a choked conduit (21) so that, in use, drilling fluid under pressure is delivered to the cavity, which thereby acts as a low friction hydrostatic bearing surface. |
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| 163 | Dispositif de forage | EP82200977.5 | 1982-07-26 | EP0072072B1 | 1986-05-14 | Kaalstad, Oscar William |
| 164 | Dispositif de forage | EP82200977.5 | 1982-07-26 | EP0072072A1 | 1983-02-16 | Kaalstad, Oscar William |
Le dispositif comporte une tête de forage munie d'un corps rotatif (1) traversé axialement par un conduit (18) de distribution de boue et supportant une couronne de taille (5) montée libre en rotation sur un axe (4). L'axe de rotation (4) de la couronne (5) est supporté par le corps rotatif (1) et il diverge avec l'axe de rotation dudit corps (1) vers le sens de forage. Un galet (13') libre en rotation roule sur la paroi verticale du puits foré et permet de centrer le dispositif. |
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| 165 | WELLBORE CENTRALIZER | EP15805013.8 | 2015-11-13 | EP3307984A1 | 2018-04-18 | ZHOU, Shaohua |
| A wellbore tool centralizer includes a housing that includes a bore to receive a wellbore tubular; an expandable element radially mounted to the housing; and a fluid pathway that extends through the housing to fluidly connect the bore and the expandable element and expose the expandable element to a fluid pressure sufficient to radially expand the expandable element. | ||||||
| 166 | DOWNHOLE STABILIZER | EP13877845 | 2013-03-21 | EP2971446A4 | 2016-10-19 | ANDERSON CHARLES ABERNETHY |
| 167 | WIRELINE ROLLER STANDOFF | EP14750876.6 | 2014-07-24 | EP3025012A2 | 2016-06-01 | HRADECKY, Jason Allen |
| Apparatus comprising a gripper operable to grip a cable extending between the Earth's surface and a downhole tool, wherein the downhole tool is suspended in a wellbore that extends from the Earth's surface to one or more subterranean formations. A body is assembled to the gripper. A plurality of rolling elements are each rotatably coupled to the body and operable to rotate relative to the body in response to contact with a sidewall of the wellbore as the body is translated along the wellbore. The body and the plurality of rolling elements collectively rotate relative to the gripper and, thus, the cable. | ||||||
| 168 | DOWNHOLE STABILIZER | EP13877845.1 | 2013-03-21 | EP2971446A1 | 2016-01-20 | Anderson, Charles Abernethy |
| A stabilizer for use in a wellbore string, comprising: an elongate body having an upper end for connection to the wellbore string and a lower end for connection to a wellbore string, a long axis between the ends and an outer surface; and a first cutting ring mounted on the elongate body and exposed on the outer surface with an annular outer surface of the first cutting ring encircling the elongate body. | ||||||
| 169 | FRICTION REDUCTION MECHANISM FOR A DOWNHOLE RELEASE ASSEMBLY | EP13768213.4 | 2013-03-29 | EP2831363A1 | 2015-02-04 | MARTIN, Brandon; GRANT, Douglas W.; NELSON, Keith R. |
| A mechanism to enhance disengagement of release assembly portions from one another when disposed in a well. The mechanism may be disposed at an internal rod of the release assembly and configured to prevent frictional resistance to shifting of the rod. Thus, actuation of release may be assured, for example, in spite of any axial pull on the assembly which may tend to direct radial forces on the rod. As such, controlled separation of release assembly portions may be assured so as to aid in removal of a line coupled to the assembly from the well. | ||||||
| 170 | DOWNHOLE DEVICE | EP05772066.6 | 2005-08-11 | EP1781894B1 | 2012-03-28 | HALL, Robert Neil |
| The invention relates to a downhole device for incorporation into a downhole string and movement in a wellbore. The device comprises a body member (12), at least one roller (20) arranged on the device to engage the inner surface of the wellbore and means to orient the device in the wellbore. The means to orient the device are provided on the or each roller. Preferably the means to orient the device comprise a projecting portion provided on the or each roller which projects radially outwardly from the body member. The projecting portion can be an eccentrically-shaped portion of the or each roller. | ||||||
| 171 | TUBE DE GUIDAGE POUR CONDUITE FLEXIBLE DE TRANSPORT DES HYDROCARBURES | EP04791550.9 | 2004-10-15 | EP1678435B1 | 2011-06-22 | PERREAU-SAUSSINE, Dominique; XAVIER, Gaspar Rua Hadock Lobo 300 Apto 106 BL 2 |
| The invention relates to a guide tube for a flexible duct for transporting hydrocarbons comprising an internal tubular element (10) consisting of a substantially rectilinear section (12) extending along an axis (A) and prolonged by a free section (14) provided with a curvature and a wall (38) which is internal with respect to said curvature against which said flexible duct is accommodated when frictionally carried through said guide tube. The rectilinear section (12) comprises eccentric guide means (18) for directing said flexible duct away from the axis (A) in a direction opposite to the curvature in such a way that the duct is deviated from said internal wall. | ||||||
| 172 | ROTATING SYSTEMS ASSOCIATED WITH DRILL PIPE | EP05724576.3 | 2005-03-03 | EP1730386B1 | 2010-05-19 | GLEITMAN, Daniel, D.; RODNEY, Paul, F.; DUDLEY, James, H. |
| 173 | Schneckenbohrer zum Erstellen eines Bohrlochs im Erdboden | EP06019898.3 | 2006-09-22 | EP1905945A1 | 2008-04-02 | Stötzer, Erwin Emil |
Die Erfindung betrifft einen Schneckenbohrer (1) zum Erstellen eines Bohrlochs im Erdboden, mit einem Bohrschaft (11) und mindestens einer Bohrwendel (15), die längs des Bohrschafts verläuft. Nach der Erfindung ist vorgesehen, dass radial vom Bohrschaft beabstandet zumindest ein Führungselement (20) zum Abstützten des Schneckenbohrers an einer Wandung des Bohrlochs angeordnet ist, wobei das Führungselement relativ zum Bohrschaft drehbar gelagert ist.
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| 174 | CENTRALIZER-BASED SURVEY AND NAVIGATION DEVICE AND METHOD | EP05854063.4 | 2005-12-14 | EP1831502A2 | 2007-09-12 | GOLDSTEIN, Brett; SULIGA, William; DOLGIN, Benjamin; VICKERMAN, David; COTTEN, Steven, A.; GRINDSTAFF, Keith; SHENHAR, Joram; HILL, John, L. |
| A Centralizer based Survey and Navigation (CSN) device designed to provide borehole or passageway position information. The CSN device can include one or more displacement sensors, centralizers, an odometry sensor, a borehole initialization system, and navigation algorithm implementing processor(s). Also, methods of using the CSN device for in-hole survey and navigation. | ||||||
| 175 | ROTATING SYSTEMS ASSOCIATED WITH DRILL PIPE | EP05724576.3 | 2005-03-03 | EP1730386A2 | 2006-12-13 | GLEITMAN, Daniel, D.; RODNEY, Paul, F.; DUDLEY, James, H. |
| Methods and apparatuses for drilling a borehole are disclosed. An electric motor electrically and mechanically coupled to a wired drill pipe is provided. The electric motor couples to a shaft that rotates when power is supplied to the electric motor. The shaft is couplable to a drill bit. The wired drill pipe transfers electricity to the electric motor from the surface. Operation of the electric motor rotates the shaft. The drill bit wears away earth to form the borehole in the earth. | ||||||
| 176 | DOWNHOLE APPARATUS FOR MOBILISING DRILL CUTTINGS | EP05729603.0 | 2005-03-24 | EP1727960A1 | 2006-12-06 | KIRK, Ian Alastair; BARRON, William; CLARK, Alistair Bertram |
| Apparatus for mobilising drill cuttings in a well, comprising at least one vane (12), and two or more blades (15). The two or more blades (15) define at least one fluid conduit between adjacent blades (15). The blades (15) and the or each vane (12) are rotatable relative to one another. The apparatus is provided to alleviate the problem of drill cuttings clumping together downhole. The or each vane (12) can be provided on a sleeve (5). The blades (15) can be mounted on a bushing (7) that is rotatably mounted on the sleeve (5). | ||||||
| 177 | Anti-rotation device for use in a borehole | EP03253477.8 | 2003-06-03 | EP1371810B1 | 2006-11-29 | Cargill, Edward-James; Restau, Bryan James |
| 178 | Non rotating centraliser | EP02102823.8 | 1996-04-16 | EP1318269B1 | 2005-10-26 | MURRAY, Geoffrey, Neil; FERNANDES, Denis, Robert |
| 179 | FRICTION REDUCING TOOL | EP98911300 | 1998-03-11 | EP0968352A4 | 2004-07-21 | MURRAY GEOFFREY NEIL |
| A friction reducing tool for drilling applications having a plurality of rollers for about the periphery of the tool (3). The rollers (4) have extensions (7) which locate within cavities (8) to prevent the rollers from passing from cavity (10) to the exterior of the tool. The tool is formed in multiple parts (3a and 3b) having interengaging tongues (5 and 6) which are joined together by passing a rod (15) through bore (13). A groove (14) is provided in outer component (2) to enable rod (15) to be inserted in bore (13). | ||||||
| 180 | FRICTION REDUCING TOOL AND METHOD FOR ITS USE IN A WELLBORE | EP00900076.1 | 2000-01-07 | EP1144796B1 | 2004-01-02 | MURRAY, Geoffrey, Neil |
| A friction reducing tool (1) having a generally tubular body (2) and three or more groups of rotatable castors (3) provided about the periphery of the body, wherein the castors of each group are substantially aligned in a longitudinal direction, and wherein each group of castors has at least one castor offset relative to at least one other castor of the same group. | ||||||
