子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | 확장 그라우팅 장치 및 이를 이용한 지반 강도 보강 시공 방법 | KR1020090027353 | 2009-03-31 | KR1020100108995A | 2010-10-08 | 강익희 |
| PURPOSE: An extended grouting device and a construction method for reinforcing ground strength using the same are provided to easily control the diameter of a reinforcing part by controlling a rotation angle of an expansion member. CONSTITUTION: An extended grouting device comprises a first driver, a hollow rod casing(250), a first pressing unit, a second driver, a hollow inner rod(270), an expansion drill unit, and a drill unit(253). The first driver is movably formed in a support member. The rod casing is connected to the first driver and is rotated. The first pressing unit moves the rod casing. The second driver is movably formed in the support member. The inner rod is inserted into the rod casing. The expansion drill unit has a drill bit(2811). The drill unit is formed in the front end of the rod casing and is rotated with the rod casing. | ||||||
| 82 | IF THE EXCAVATION WHERE THE CARBIDE TIP IS HAD EXCAVATION BIT OF THE EXCAVATION SYSTEM WHERE THE EXPANSION AND ABRIDGMENT ARE POSSIBLE | KR20090024594 | 2009-03-23 | KR100919628B1 | 2009-09-30 | IM SA IN |
| PURPOSE: An excavation bit for an excavation device that enable expansion and reduction of excavated plane at which a carbide tip is prepared is provided to be used conveniently by enabling the reuse of an excavation device and an excavation bit. CONSTITUTION: An excavation bit for an excavation device includes a head unit(110), a rod combining unit(120), a bit body(100) and a cutting portion(112). The head unit includes an excavation plane(111), and the excavation plane is combined with the load for transferring power of an excavation device at an upper portion of the head unit. An oil path hole(130) is formed in the bit body, and vertically penetrates the centers of the rod combining unit and the head unit. The cutting unit is inserted into the central portion of an excavation plane horizontally. It is the excavation of the head unit bottom surface of the bit body. | ||||||
| 83 | 오거스크류용 오버커팅헤드장치 | KR1020060096684 | 2006-09-30 | KR100802943B1 | 2008-02-18 | 위성길 |
| An over cutting head apparatus for an auger screw is provided to shorten the time required for boring an expansion hole on the lower part of a pre-bored hole in the ground. An over cutting head apparatus(20) for an auger screw includes a cylinder portion(21) formed to have a larger diameter than that of an outer casing to be coupled to the lower part of an outer casing of an auger screw to be separable and equipped with a pair of soil inlets(23a) to let soil in and a pair of hinge shafts(25a) supported by a supporter(26) to couple first and second blade portions, and first and second blade portions(27) hinged to the cylinder portion and spread from the cylinder portion by centrifugal force when an auger screw rotates to bore an expansion hole in a larger diameter than a hole bored by the auger screw, wherein the blade portion is formed in a triangular form having three sides(27a,27b,27c) and one of the three sides is hinged to the hinge shaft coupled in the longitudinal direction of the cylinder portion and the remaining two sides are provided with cutter blades to crush the ground and to form an expansion hole, a stopper(29) is formed in close vicinity to the hinge shaft to keep the swivel angle of the blade portion at a 90-degree maximum angle when the auger screw rotates, and a bend(27d) is formed to be bent in the opposite direction to the rotating direction of the auger screw on a part where the two sides located far apart from the hinge shaft to prevent the blade portion from being damaged by repulsive force against rotation. | ||||||
| 84 | 지하 구멍의 내부를 넓히는 드릴 | KR1020020051320 | 2002-08-29 | KR1020020075837A | 2002-10-07 | 허정 |
| PURPOSE: A drill for widening an inner space of an underground hole is provided to reduce a period and a cost of construction, and to minimize the damage of natural environment. CONSTITUTION: The drill for widening an inner space of an underground hole is formed by reconstructing a certain part, known as a shelf support, more particularly, by doubling the number of the shelf supports and attaching a diamond(4) to the distal end of the shelf support. The diamond serves to wide the lower space of a drilled hole. The cutting ability of the drill is increased in proportion to the number of the diamonds. | ||||||
| 85 | 편심 비트블럭을 갖는 굴삭장치 | KR1019990040625 | 1999-09-21 | KR1020010028405A | 2001-04-06 | 김재면 |
| PURPOSE: An excavator having an eccentric bit-block is provided to simplifying the structure of equipment by facilitating the drawing of the bit-block. CONSTITUTION: An excavator comprises a bit block(10) and an adjusting part(50) for the location of a block. The bit block consists of a first body part(20) and a second body part(30). The first body part excavates directly under a hammer device. The second body part excavates the ground during extending to make the diameter of the ground be larger than a casing, and is projected from the outside of the first body part. The block-location adjusting-part guides the second body part to be projected outward from the inside of the casing by moving the bit block horizontally when the hammer device falls from the casing or lifts. | ||||||
| 86 | ACTUATOR AND METHOD | EP10752123.9 | 2010-08-11 | EP2464817B1 | 2018-11-07 | GASKIN, Keith; CLARK, George; CHAPMAN, Darren |
| A downhole actuator or valve for inclusion in a downhole drill string used in a well includes an obstructing member, such as a piston, moveable between: a first position and a second position; and a retaining member, such as a ball, moveable between: a retaining position which retains the obstructing member in the first position; and, a release position which does not retain the obstructing member in the first position and/or allows or causes the obstructing member to move to the second position. The retaining member is moved in use between the retaining position and release position at least in part by centrifugal forces caused by rotation of the entire drill string within which the downhole actuator/valve is included. Thus, at least some control of the actuation of the downhole actuator/valve may be afforded by rotation thereof. | ||||||
| 87 | DOWNHOLE APPARATUS AND METHODS OF USE | EP16834092.5 | 2016-12-23 | EP3394382A1 | 2018-10-31 | BROWN, Gareth Edward George |
| An expanding or collapsing wellbore cutting apparatus e.g. milling bit 50 comprises plural elements assembled together to form a ring structure 54 oriented in a plane around a longitudinal axis. The ring structure is operable rotated by a drive shaft 52 and to be moved between expanded and collapsed conditions by movement of the elements e.g. by sliding with respect to one another in the plane in a direction tangential to a circle concentric with the ring structure as a result of an axial force being applied e.g. by conical wedge profiles 56, 76 which are slotted to engage ridges in the elements to form a splined coupling for torque transfer. Tangential movement of the elements gives a smooth circular ring without gaps. The elements may be keyed to one another for support and comprise outer grooves and ridges or teeth for removing formation material. The apparatus may be run-in collapsed and subsequently expanded or vice versa. Applications include: milling or drilling bits e.g. casing drilling bit, cutting tool, reamer or under-reamer, washover tool or hole opener. | ||||||
| 88 | WINDOW MILLING SYSTEMS | EP13877265.2 | 2013-03-05 | EP2964869B1 | 2018-07-04 | DONOVAN, Stacey B.; DANCER, William W. |
| A window milling system can include a window mill having selectively retractable and extendable blades, and a whipstock assembly having a receptacle therein, the window mill being secured relative to the whipstock assembly the blades are received in the receptacle. A method of cutting a window through a wellbore lining can include cutting through the lining with a window mill, then retracting blades of the window mill, and then outwardly extending the blades in a whipstock assembly, thereby securing the whipstock assembly to the window mill. A window mill can include multiple blades adapted for cutting through a wellbore lining, the blades being outwardly extendable relative to a body of the window mill in a well. Another method of cutting a window through a wellbore lining can include a window mill drilling a wellbore outward a substantial distance from the window after the window mill cutting through the lining. | ||||||
| 89 | ADJUSTABLE BODY SUPPORTED CUTTER ARMS FOR UNDERREAMER | EP11859453 | 2011-02-24 | EP2678513A4 | 2018-01-24 | TIGER 19 PARTNERS LTD |
| An underreamer for connection with a rotary pipe string includes inner and outer body sections which form a body structure to provide a fluid flow path therethrough for communicating with piston and cylinder means formed between the body sections for receiving drilling fluid to effect telescopic movement between the body sections permitting engagement of cutter arms and support of said cutter arms on the outer body of the underreamer utilizing a slideable, non-pivoting stop block. Cutter arms are pivotally mounted on the inner body section and, upon engagement of the cutter arms to effect underreaming are fully supported on the outer body section thereby minimizing damage from vibration and repeated use on the threaded inner body sections. | ||||||
| 90 | SELECTIVE DOWNHOLE ACTUATOR | EP16706412.0 | 2016-02-19 | EP3259437A1 | 2017-12-27 | MACKENZIE, Alan; VISWANATHAN, Alagappan; MACFARLANE, Alastair Henry Walter |
| A selective downhole actuator comprising at least a first actuator position, a second actuator position and a third actuator position. The selective downhole actuator is reconfigurable between the first actuator position and the second actuator position. The selective actuator is selectively reconfigurable to the third actuator position by varying an operating parameter during a transition of the selective downhole actuator between the first and second actuator positions. | ||||||
| 91 | ACTIVATING DEVICE FOR A DOWNHOLE TOOL | EP07825416.6 | 2007-10-18 | EP2074277B1 | 2017-12-20 | Lee, Paul Bernard |
| An activating device is mounted in a drill string to control the activation and deactivation of an enlargement tool used for enlarging a bore hole. In order to assemble the activating device, pistons are mounted in passages and spline bars, in which plates are screwed, are then slid along T-slots of the body, through apertures of the pistons. In order to deploy the pistons and cutters, pressurized drilling fluid is applied to the inner faces of the pistons. When a pre-determined pressure level is reached, screws break and the pistons move from the inward position to the outwardly deployed position. | ||||||
| 92 | UNDERREAMER WITH RADIAL EXPANDABLE CUTTING BLOCKS | EP15819749.1 | 2015-07-07 | EP3167145A1 | 2017-05-17 | SOLEM, Sigurd |
| A cutting tool (1) for widening the diameter of a borehole and method thereof is disclosed. The cutting tool (1) comprises a housing (2) having cavity (10) in which a moveable activation element (6) is arranged. The activation element (6) is moved in an axial direction and is connected to one or more cutting blocks via a mechanical coupling (15). The mechanical coupling (15) transfers the axial movement of the action element into a radial movement of the cutting blocks. An activation unit (24) pushes the activation element (6) towards a stopping position which in turn causes the cutting blocks (11) to move out of the housing. The activation unit (24) further pulls the activation element back towards its starting position which in turn causes the cutting blocks to move back into the housing. The cutting blocks (11) extend into one or more cavities formed in the activation element, thereby increasing the travel-to-expansion ratio. The cutting blocks can be replaced by stabiliser blades (20) which are used to stabilise the drilling in the expanded borehole. | ||||||
| 93 | INTELLIGENT REAMER FOR ROTARY/SLIDABLE DRILLING SYSTEM AND METHOD | EP14853080 | 2014-10-03 | EP3055480A4 | 2017-05-10 | MAY MARK |
| A downhole intelligent reamer controller detects the difference between rotary drilling and sliding drilling, responds appropriately and quickly to multiple changes between rotary drilling and sliding drilling that may occur several times each stand of pipe. Additional controls prevent deployment of reamer members at inappropriate times such as when drilling out cement, testing, and running in and out of the wellbore. In one embodiment, a separate modular control sub is disclosed that may be utilized with and/or removably secured to an expandable reamer and/or other types of downhole tools. | ||||||
| 94 | WINDOW MILLING SYSTEMS | EP13877265 | 2013-03-05 | EP2964869A4 | 2017-01-25 | DONOVAN STACEY B; DANCER WILLIAM W |
| A window milling system can include a window mill having selectively retractable and extendable blades, and a whipstock assembly having a receptacle therein, the window mill being secured relative to the whipstock assembly the blades are received in the receptacle. A method of cutting a window through a wellbore lining can include cutting through the lining with a window mill, then retracting blades of the window mill, and then outwardly extending the blades in a whipstock assembly, thereby securing the whipstock assembly to the window mill. A window mill can include multiple blades adapted for cutting through a wellbore lining, the blades being outwardly extendable relative to a body of the window mill in a well. Another method of cutting a window through a wellbore lining can include a window mill drilling a wellbore outward a substantial distance from the window after the window mill cutting through the lining. | ||||||
| 95 | DUAL STRING SECTION MILL | EP12796606.7 | 2012-06-08 | EP2718534B1 | 2016-11-02 | SCHMIDT, Ronald, G.; DEWEY, Charles, H. |
| A dual string section milling tool includes a cutting block deployed in an axial recess in a tool body. The cutting block is configured to extend radially outward from and retract radially inward towards the tool body. The cutting block is further configured to remove a cement layer in a wellbore. The dual string section milling tool further includes a milling blade deployed in an axially slot disposed in the cutting block. The milling blade is configured to extend radially outward from and inwards towards the cutting block. The milling blade is further configured to cut and mill a section of casing string. The dual string section milling tool may be further configured to simultaneously remove cement and mill a wellbore tubular. | ||||||
| 96 | Earth drilling tool and method | EP10196499.7 | 2010-12-22 | EP2339109A3 | 2016-09-14 | Löf, Jan-Åke |
The present invention relates to a drilling tool for down-the-hole drilling, which drilling tool is intended to drill a hole ahead of a following casing tube, the drilling tool comprising a drill assembly which comprises a central pilot drill bit portion, a peripheral ring shaped drill bit portion and a casing shoe , said assembly being coupled to a drill string wherein the drill string is connected to the assembly via a drive shaft device which releasably interfits with the central pilot drill bit portion for transmitting torque from the drill string to the drill assembly.
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| 97 | System and method for estimating properties of geological formations drilled using underreamer | EP14290323.6 | 2014-10-22 | EP3012671A1 | 2016-04-27 | Ringer, Maurice; Lessi, Jacques |
Devices and methods for estimating properties of geological formations drilled with a drill bit (16) and an underreamer (18) are provided. A method according to the disclosure includes receiving a set of mixed well-logging data corresponding to a geological formation at multiple depths of a wellbore drilled using a bottom hole assembly (28) that includes a drill bit and a first underreamer. The drill bit and the first underreamer are spaced a first distance (76) apart from one another. The method includes separating the set of mixed well-logging data into first well-logging data corresponding to the geological formation at depths drilled by the drill bit (16) and second well-logging data corresponding to the geological formation at depths reamed by the first underreamer (18).
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| 98 | DOWNHOLE TOOL FOR INCREASING A WELLBORE DIAMETER | EP14810147.0 | 2014-06-09 | EP3008276A1 | 2016-04-20 | KESHAVAN, Madapusi K.; DESAI, Praful; COOPER, Lain M |
| A downhole tool for increasing a diameter of a wellbore disposed within a subterranean formation. The downhole tool includes an underreamer having a plurality of cutter blocks moveably coupled thereto that move radially-outward from a retracted state to an expanded state. The cutter blocks cut the subterranean formation to increase the diameter of the wellbore from a first diameter to a second diameter when in the expanded state. A formation weakening tool may be coupled to the underreamer. The formation weakening tool weakens a portion of the subterranean formation positioned radially-outward therefrom. | ||||||
| 99 | Downhole wireline cleaning tool | EP13184806.1 | 2013-09-17 | EP2848764A1 | 2015-03-18 | Jensen, Sven Karsten; Born, Rune Garbers |
Downhole wireline cleaning tool, comprising a tool housing (4) having a first housing part (5) and a second housing part (6), a projectable arm (7) which is pivotably connected with the first housing part at a first end (8) of the projectable arm, and the projectable arm has a plurality of bits (9) in a second end (10), said projectable arm being movable between a retracted position and a projected position in relation to the tool housing in order to bring the bits in contact with the object, an arm activation assembly (11) for moving the projectable arm between the retracted position and the projected position, and a rotatable shaft (12) arranged in the second housing part and rotatably connected with the first housing part for rotating the projectable arm.
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| 100 | Bohrwerkzeug und Verfahren zum Erdbohren | EP14158322.9 | 2013-02-26 | EP2770157A1 | 2014-08-27 | Schweiger, Manfred; Major, Sandor; Stimpfle-Ziegler, Andreas |
Die Erfindung betrifft ein Bohrwerkzeug zum Erdbohren mit einem Bohrgestängeelement, welches mit einem Drehantrieb verbindbar und um eine Bohrachse drehend antreibbar ist, einem rahmenartigen Gehäuse und mindestens einem Abtragszahn, welcher in dem Gehäuse radial verstellbar zwischen einer Rückzugsposition in dem Gehäuse und einer Arbeitsposition gelagert ist, in welcher der mindestens eine Abtragszahn radial aus dem Gehäuse vorsteht. Weiterhin ist an dem Bohrgestängeelement in dem Gehäuse ein Übertragungsmechanismus angeordnet, durch welchen eine Hub- und/oder Drehbewegung des Bohrgestängeelementes in eine Radialbewegung zum radialen Verstellen des mindestens einen Abtragszahnes übersetzbar ist.
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