| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 241 | Downhole drilling assembly | EP13184640.4 | 2010-03-19 | EP2677112A3 | 2015-12-30 | Downie, Andrew McPherson; Vitale, Pascal Michel; Boussi, Bachar |
A downhole stabiliser (5), such as a drill motor stabiliser, comprises at least one reaming means and/or reinforcing means (10). The present invention also relates to an assembly (30), such as a downhole drilling assembly (31), comprising at least one such stabiliser (5) and/or a drill bit (40,41) comprising a gauge bit (42) at or near a drilling end (45) thereof, and a connection means (46) for connecting the drill bit (40,41) to a drill motor assembly (60), wherein the drill bit gauge (42) comprises a substantially cylindrical portion having a length less than or equal to approximately 1.0 times the nominal bit diameter. The present invention also relates to a novel locking mechanism (80), such as a lock and key mechanism, to allow locking of a shaft (70'), e.g. a motor drive shaft (71'), through or together with a stabiliser (5').
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| 242 | HYDRAULIC ACTIVATION OF MECHANICALLY OPERATED BOTTOM HOLE ASSEMBLY TOOL | EP14743763.6 | 2014-01-24 | EP2948612A1 | 2015-12-02 | MAGEREN, Olivier; CHE, Khac Nguyen |
| A method of hydraulically activating a mechanically operated wellbore tool in a bottom hole assembly includes: holding moveable elements of the wellbore tool in an unactivated position using a shear pin; inserting one or more drop balls into a drilling fluid; and flowing the drilling fluid with the drop balls to a flow orifice located in or below the wellbore tool. The flow orifice is at least partially plugged with the drop balls to restrict fluid flow and correspondingly increases the hydraulic pressure of the drilling fluid. The hydraulic pressure is increased to a point beyond the rating of the shear pin, thereby causing the shear pin to shear and allowing the moveable elements of the tool to move to an activated position. | ||||||
| 243 | SYSTEMS AND METHODS OF ADJUSTING WEIGHT ON BIT AN BALANCING PHASE | EP12818978.4 | 2012-12-28 | EP2938816A1 | 2015-11-04 | SAMUEL, Robello |
| Disclosed are systems and methods of balancing weight distribution between downhole cutting tools. One system includes a drill bit arranged at a distal end of the bottom-hole assembly, a first sensor sub arranged proximate to the drill bit and configured to monitor one or more operational parameters corresponding to the drill bit, a reamer axially-offset from the drill bit on the bottom-hole assembly, a second sensor sub arranged proximate to the reamer and configured to monitor one or more operational parameters of the reamer, and a communications module communicably coupled to the first and second sensor subs and configured to communicate one or more corrective action signals when the one or more operational parameters of the drill bit and the reamer surpass a predetermined operating threshold. | ||||||
| 244 | EXPANDED LINER SYSTEM AND METHOD | EP04760084.6 | 2004-04-21 | EP1616076B1 | 2015-10-28 | CHEN, Chen-Kang D.; GLEITMAN, Daniel D.; RAO, M. Vikram |
| 245 | DRILL BITS HAVING ROTATING CUTTING STRUCTURES THEREON | EP12841957 | 2012-10-17 | EP2769046A4 | 2015-09-16 | YONG ZHOU; WU JIAN |
| 246 | WELLBORE CONDITIONING SYSTEM | EP12837996 | 2012-10-03 | EP2766551A4 | 2015-09-16 | MEIER T GILBERT; ISENHOUR JAMES D |
| 247 | BACKUP CUTTING ELEMENTS ON NON-CONCENTRIC REAMING TOOLS | EP10797731 | 2010-07-06 | EP2452035A4 | 2015-08-26 | WOOD MATTHEW S; SINKINSON JAMES O |
| 248 | METHODS, SYSTEMS, AND TOOL ASSEMBLIES FOR DISTRIBUTING WEIGHT-ON-BIT BETWEEN A PILOT EARTH-BORING ROTARY DRILL BIT AND A REAMER DEVICE | EP10736459 | 2010-01-29 | EP2384387A4 | 2015-03-25 | RADFORD STEVEN; ANDERSON MARK; THOMPSON WILLIAM; POWERS JIM |
| 249 | SLIDE REAMER AND STABILIZER TOOL | EP10771943 | 2010-05-05 | EP2427625A4 | 2014-12-10 | HARVEY MICHAEL JAMES; VACAR JOVAN; RAJIC MILAN |
| A downhole tool, for selectively reaming a wellbore or stabilizing drill string components within a wellbore, includes an elongate tool body adapted to receive reamer cartridges or stabilizer cartridges. The reamer cartridges are radially insertable into corresponding pockets in the tool body, with each reamer cartridge having a reamer insert with an array of cutting elements. The reamer insert is disposed within a bushing and is rotatable relative thereto, about a rotational axis transverse to the longitudinal axis of the tool. However, the rotational axis is offset from the tool body axis, resulting in eccentric contact of the cutting elements with the wall of the wellbore, which in turn imparts rotation to the reamer insert when the tool is moved axially through a wellbore without rotation. When the tool is used for stabilization, the reamer cartridges are removed and replaced with stabilizer cartridges having stabilizer inserts with hard-faced stabilizer cones. | ||||||
| 250 | DRILL BIT ASSEMBLY WITH A LOGGING DEVICE | EP07759037 | 2007-03-21 | EP1999342A4 | 2014-11-05 | LEANY FRANCIS; DURRAND CHRISTOPHER; TURNER PAULA |
| 251 | DRILL BITS HAVING ROTATING CUTTING STRUCTURES THEREON | EP12841957.9 | 2012-10-17 | EP2769046A1 | 2014-08-27 | YONG, Zhou; WU, Jian |
| A drill bit may include a bit body rotatable about a longitudinal axis and having, at one end, a connection for securing the drill bit to a drill string and having a face opposite the connection end; and a plurality of cutting structures having at least one fixed cutting structure disposed on the bit body face and at least one cutting body rotatably attached to the face of the bit body; wherein, in a rotated view of the plurality of cutting structures into a single plane, there is substantially no radial overlap between at least one fixed cutting structure and the at least one cutting body. | ||||||
| 252 | WELLBORE CONDITIONING SYSTEM | EP12837996.3 | 2012-10-03 | EP2766551A1 | 2014-08-20 | Meier, T. Gilbert; Isenhour, James D. |
| A wellbore conditioning system is disclosed. The system comprises at least one shaft and at least two eccentric unilateral reamers, wherein the unilateral reamers are positioned at a predetermined distance from each other and the unilateral reamers are positioned at a predetermined rotational angle from each other. | ||||||
| 253 | PILOT REAMER WITH COMPOSITE FRAMEWORK | EP09826607 | 2009-11-10 | EP2352895A4 | 2014-01-22 | BUSKE ROBERT J |
| 254 | METHODS, SYSTEMS, AND BOTTOM HOLE ASSEMBLIES INCLUDING REAMER WITH VARYING EFFECTIVE BACK RAKE | EP09733707 | 2009-04-23 | EP2297424A4 | 2013-09-04 | MEISTER MATTHIAS |
| 255 | DRILL ASSEMBLY | EP11832179.3 | 2011-10-14 | EP2627851A1 | 2013-08-21 | MATTILA, Mikko; KORTE, Pasi |
| Drill assembly for making a hole into a soil or rock which arrangement comprises a pilot bit (10) drilling the middle part of the hole and a ring bit (1) drilling the outer circle of the hole in which case in the drilling situation the ring bit (1) is adjusted around the pilot bit (10) and rotary movement and drilling impacts are directed from the pilot bit (10) to the ring bit (1) with the help of the mentioned surfaces (4-6);(7-9),(15, 16) adjusted between the bits and conveying power and that the ring bit (1) can be removed around the pilot bit (10) and can be installed to it and that further a coupling ring (2) belongs around the ring bit (1) in order to join a casing pipe, which can be pulled to the drilled hole, to the ring bit (1) with the help of the mentioned coupling ring. The coupling ring. (2) is adjusted around the periphery of the ring bit (1) in such a way that of the parts (13) taking part in the locking of the coupling ring (2) at least two are located at the different sides of the line (L) when the arrangement is assembled which line runs essentially through the middle point of the surface (5) conveying the rotation of the ring bit (1). | ||||||
| 256 | CUTTING TOOL INTEGRATED IN A DRILLSTRING | EP11751677.3 | 2011-08-12 | EP2603660A1 | 2013-06-19 | TAGHIPOUR KHADRBEIK, Mohammad Ali |
| The present invention discloses a cutting tool integrated in a drillstring for enlarging a borehole, where the cutting tool at least comprises: one or more side mills (12, 13, 14) arranged along the axis of said drillstring in a reamer housing (11), where the side mills (12, 13,14) are adapted to be rotated relative to the tool housing (11) by individual driving means. The self driven rotational side mills may be dome shaped cones where expand radially out of the reamer housing (11), or may be a special non-circular dome shaped cones where rotates without expanding. | ||||||
| 257 | Outil, installation et procédé pour la réalisation de forages horizontaux | EP12158151.6 | 2012-03-06 | EP2497896A1 | 2012-09-12 | Lopes, Michel |
L'invention concerne un outil de forage (14) de foreuse à tarières ou de micro-tunnelier ayant une face amont (15), par référence à la direction de travail dudit outil, et une face aval (16) opposée, caractérisé en ce que ladite face amont (15) comporte des moyens de connexion à une tige de guidage (21), rotative, motrice. Cette tige de guidage est entraînée par une foreuse horizontale dirigée et l'outil peut être une tête de forage d'une foreuse à tarières.
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| 258 | ADAPTIVE CONTROL CONCEPT FOR HYBRID PDC/ROLLER CONE BITS | EP10772502.0 | 2010-04-27 | EP2425087A2 | 2012-03-07 | TURNER, Evan, C.; SULLIVAN, Eric |
| An earth boring drill bit comprising a bit body having a longitudinal axis along a path of the bit, a first plurality of cutters mounted to the body, and a second plurality of cutters rotatably mounted to the body, wherein a longitudinal axial relationship between the first plurality of cutters and the second plurality of cutters is adjustable. The first and/or second plurality of cutters may be mounted to the body in such a manner as to allow them to slide parallel to the longitudinal axis. The longitudinal axial relationship may be adjusted to exchange the first plurality of cutters and the secondary plurality of cutters between a primary cutting position and a secondary cutting position. The bit may include a sensor to provide an indication of a formation type being excavated by the bit and a processor to control the longitudinal axial relationship based on the indication. | ||||||
| 259 | DOWNHOLE DRILLING ASSEMBLY | EP10712750.8 | 2010-03-19 | EP2408996A2 | 2012-01-25 | DOWNIE, Andrew, McPherson; VITALE, Pascal, Michel; BOUSSI, Bachar |
| A downhole stabiliser (5), such as a drill motor stabiliser, comprises at least one reaming means and/or reinforcing means (10). The present invention also relates to an assembly (30), such as a downhole drilling assembly (31), comprising at least one such stabiliser (5) and/or a drill bit (40,41) comprising a gauge bit (42) at or near a drilling end (45) thereof, and a connection means (46) for connecting the drill bit (40,41) to a drill motor assembly (60), wherein the drill bit gauge (42) comprises a substantially cylindrical portion having a length less than or equal to approximately 1.0 times the nominal bit diameter. The present invention also relates to a novel locking mechanism (80), such as a lock and key mechanism, to allow locking of a shaft (70'), e.g. a motor drive shaft (71'), through or together with a stabiliser (5'). | ||||||
| 260 | DRILLING HEAD FOR REBORING A STUCK VALVE | EP08706926.6 | 2008-02-28 | EP2132403B1 | 2011-08-17 | HALLUNDBÆK, Jørgen; JENSEN, Svend, Karsten; ANDERSEN, Thomas, Sune |
| The present invention relates to a drilling head (2) for reboring a stuck valve (35) or drilling into the formation downhole (36). The invention furthermore relates to a drilling tool (1) comprising the drilling head and a driving unit (9). The drilling head comprises a hole saw (28) beside a drill bit for cutting out a piece (37) from the stuck valve. Furthermore, the invention relates to a drilling system comprising the drilling tool and a driving tool for moving the drilling tool downhole; a method of drilling; and a use of the drilling head. | ||||||
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