Abstract:
A manually operated pneumatic rock drill positioner for mining shaft wall boring, said positioner comprising: an articulated boom having one end for releasable coupling to a mobile ground platform and another end opposite said one end thereof; a rigid elongated drill turret defining a main body with an exposed outer wall, an inner wall opposite said outer wall, and first side edge wall and second side edge wall opposite said first side edge wall, and first end and second end opposite said first end, a lengthwise rail member integrally mounted to said turret outer wall; a carriage slidingly engaging said rail member, said carriage for slidingly carrying a pneumatic drill head over said turret exposed outer wall for reciprocating motion thereof between said first end and second end thereof; drive means for power actuating said carriage sliding motion along said rail member; a cradle member releasably anchored to said boom another end and defining a well sized and shaped for releasable engagement by an intermediate section of said turret inner wall and said first side edge wall thereof; anchoring means for anchoring said turret to said cradle member; first coupling means for pivotally connecting said turret to said cradle member for relative pivotal movement of said turret about said cradle member along a first axis; second coupling means for pivotally connecting said turret to said cradle member for relative tilting movement of said turret about said cradle member along a second axis transverse to said first axis; all in such a way that the intersection of said first axis and second axis coincides with the center of gravity of said turret positioner and is located within said turret main body, providing a balanced load-free manual operation of the positioner.
Abstract:
An assembly for hoisting and lowering a drill string of a drilling rig includes a multiple displacement hydraulic cylinder having a blind end, a rod end, and a single piston rod configured for slidable extension and retraction movement within the interior space of the cylinder. The interior space is defined by three chambers, each chamber having a port allowing switchable flow of hydraulic fluid into and out from the cylinder. The assembly also includes a pumping and switching system with hydraulic fluid connections to each port of the cylinder. The pumping and switching system is configured to switch the direction of hydraulic fluid flow through each of the ports of the three chambers, thereby providing the assembly with a plurality of hydraulic fluid flow path combinations. Each flow path combination provides a different speed-to-force ratio for extending or retracting the piston rod, thereby hoisting or lowering the drill string.
Abstract:
A wellbore tubular handling system and method for moving tubulars into a wellhead. The wellbore tubular handling system includes a service rig including a transport chassis, a mast pivotally connected to the transport chassis and moveable between a storage position and an erected position and a block supported on the mast; an upper snubbing unit pivotally connected to the mast, the upper snubbing unit including a first driving ram and a second driving ram, each including a mounted end and an outboard end, each of the first driving ram and the second driving ram being connected at the pivotal connection to the mast adjacent their mounted ends and a travelling snubbing slip assembly mounted to the outboard ends of the first driving ram and the second driving ram and being drivable toward and away from the mounted ends by the first driving ram and the second driving ram; and a stationary snubbing slip assembly configured for connection to the wellhead.
Abstract:
A pipe connection system (200) includes a stationary support frame (202, 204) and a slip control system (300) coupled to the stationary support frame including a slip wedge (302) and at least one actuator (306, 308) coupled between the slip wedge and the stationary support frame, wherein the actuator is operable to move the slip wedge between a retracted position and an extended position in engagement with a downhole tubular string (118). A pipe connection system also includes a stationary support frame (202, 204), a slip control subsystem including a slip wedge moveable between a retracted position and an extended position in engagement with a downhole tubular string, a support frame subsystem (400) movably coupled to the stationary support frame, a stabbing arm subsystem (600) movably coupled to the moveable support frame subsystem, a thread lubricator subsystem (500) movably coupled to the moveable support frame subsystem, and a mud bucket subsystem (700) movably coupled to the moveable support frame subsystem.
Abstract:
A drilling tower device (1; 26) with a drilling machine (2; 27) that is movable relative to the drilling tower (1; 26) during drilling and on the insertion and retrieval of drill string elements (3; 21; 28). The drilling tower comprises at least three mutually separate, parallel, vertical columns (4 - 7) which are connected at the bottom to a drill floor (8; 33) or base (9; 34) and at the top to a common frame (10; 35). The drilling machine (2) is mounted in a supporting frame (11) which has a triangular, rectangular or square configuration. The corners of the supporting frame have guides (12 - 16; 35' - 35"") for sliding engagement with a respective column (4 - 7; 29 - 32), and a pair of telescopic actuators (17; 18; 36; 37) are arranged for controllably moving the supporting frame (11; 35) along the columns (4 - 7; 29 - 32) to the desired level. The actuators cooperate with travellers (35; 38; 39) which slide along the supporting columns (4 - 7; 29 - 32) of the drilling tower (1; 26). A drilling machine system is also described, said drilling machine comprising a controller for controlling the functions of the drilling machine, wherein the controller is wirelessly controllable from an external remote control unit, and where the controller is supplied with electric power on the basis of externally deliverable hydraulic or electric operating power to the drilling machine.
Abstract:
Bei einem Verfahren zum Sanieren erdverlegter Altrohrleitungen in situ wird ein mit einem Antrieb versehenes Berstwerkzeug oder ein Rohrabschnitt mit Hilfe einer Hydraulik-Kolben-Zylinder-Einheit von einem üblichen Revisionsschacht ausgehend zu dem nächstfolgenden Revisionsschacht (Maschinenschacht) gezogen, die mit ihren Gehäuse mindestens teilweise in der Altrohrleitung angeordnet ist, um den ohnehin äußerst begrenzten Innenraum des Maschinenschachts weitgehend frei von Maschinenteilen zu halten.
Abstract:
A drilling or service rig (1) for use in operations on- or offshore, the rig (1) being formed by a derrick structure (3) projecting from a foundation (11) and being arranged to receive a carriage (7), movable along the longitudinal axis of the derrick structure, for a drilling or service device (17), the carriage (7) being arranged to carry out, under the influence of at least one double-acting hydraulic cylinder (9, 15), a relative movement along the longitudinal axis of the derrick structure (3), and at least one of the at least one cylinder being formed by a double-acting, telescopic cylinder (9) which is arranged to exert both a push force and a pull force on the carriage (7), whereby the said carriage (7) is moved respectively away from or towards the foundation (11) of the rig.
Abstract:
The present invention relates to a rock drilling device comprising a feed beam (4), which has a drill end (41) from which the drill point protrudes at drilling and a rear end (42) opposite said drill end. A rock drilling machine (5) is movable along the feed beam (4) and a pressure cylinder (6) is arranged at least partly inside the feed beam (4) with one end (622) movable relative to the feed beam (4) and one end (611) fixedly arranged relative to the feed beam. A feed line (51) is driven by the pressure cylinder (6) and connected to the drilling machine (5) for feeding it to and for along the feed beam (4). At least a part of the pressure cylinder (6) is arranged inside the feed beam (4) and the fixed end (611) of the pressure cylinder (6) is arranged at the rear end (42) of the feed beam, the pressure cylinder (6) being adapted to feed, via said feed line (51), the drilling machine (5) to and for along the feed beam. The invention also relates to a drill rig comprising said rock drilling device.
Abstract:
A steering assembly (20) includes upper (26) and lower (28) tubular housings connected by a universal joint (30). An angle cam (80) is disposed on the end of the lower housing and projects into the housing. A plurality of wedge members (90) extend axially from the upper housing and into engagement with the angle cam. Drive trains (150) are connected to the wedge members to move the wedge members toward and away from the angle cam to change the angle and azimuth of the lower housing with respect to the upper housing by the universal joint. The lower housing is connected to a bearing pack (16) supporting a drill bit (12) so as to change the direction of the drill bit. The steering assembly is connected to composite tubing (520) having conductors (584, 586) in the wall and a processor (514) is at the surface. Data on the position of the bit is transmitted to the processor to change the bend angle and direction of the drilling of the bit.