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WO/1999/027222A1 |
The present invention relates to an arrangement in connection with workover, snubbing, coil tubing and drilling operation in oil and gas wells, comprising a rig (1) with two operation centres (13 and 14) and a riser tension skid (3) wher...
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WO/1999/011901A1 |
The present invention relates to a drilling vessel with drilling tower or drilling mast for drilling in the earth's surface from said vessel, for example for oil or gas. The drilling vessel according to the present invention is character...
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WO/1998/057034A1 |
In the method, when the cut length to be blasted changes from a predetermined cut length, the drilling length is changed by transferring the position of the pattern in the longitudinal direction of the tunnel so that the positions of the...
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WO/1998/050667A2 |
A directional drilling apparatus (1) is disclosed. In particular, but not solely, directional drilling apparatus (1) which can be used in confined spaces or utilised in locations close to obstacles such as fences, houses, buildings, etc....
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WO/1998/048142A1 |
A derrick, especially a drilling rig derrick, including a derrick structure and lifting tackle for a load, for example, a drill string, in the derrick structure. The lifting tackle includes guideways in parallel relation which each inclu...
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WO/1998/019091A1 |
The invention relates to an arrangement for supporting hoses in a rock drill apparatus. The arrangement comprises a flat supporting member that is installed in a feed beam (1) such that it turns about an articulation (5) in relation to t...
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WO/1998/016715A1 |
The invention relates to an off-shore oil or gas unit (1) for the production of oil or gas for providing access to at least one well head conductor or riser (14), the unit having an upper topside (8) part and a lower base or jacket (2) p...
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WO/1998/007952A1 |
Drill rig comprising a carrier (1), a boom (2) and a feed device (3) rotatably connected with the boom by means of a rotation device and intended for a rock drilling machine (4). The rotation device comprises a hydraulic cylinder (5) bet...
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WO/1998/006926A1 |
A device for a derrick (1), in which a drill floor (5) or other main working platform is arranged in the derrick (1) somewhat above the foot of the derrick (1), and a storage area (7) for standing tubes (8) is provided at the foot of the...
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WO/1997/042393A1 |
A multi-activity drillship (30) method and apparatus having a single derrick (40) and multiple tubular activity stations within the derrick (40) wherein primary drilling activity may be conducted from the derrick (40) and simultaneously ...
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WO/1997/023705A1 |
An apparatus connected with a derrick, comprising two or more hydraulic piston/cylinder arrangements (10, 11) for raising and lowering a yoke (8) which travels on guide rails (7) in the derrick (1) itself. The yoke (8) comprises at least...
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WO/1997/023706A1 |
An apparatus for a derrick, comprising two or more hydraulic piston/cylinder arrangements (10, 11) for raising and lowering a yoke (8) which travels on guide rails (7) in the derrick itself and a hydraulic system (30) for the operation o...
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WO/1997/013953A1 |
The present invention provides a device for removing well casing from plugged and abandoned oil wells. The invention includes a unitary platform structure (1) sufficiently small that the structure may be transported by boat to offshore w...
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WO/1997/011243A1 |
A telescoping four-sided drilling derrick (20) and method or erection that is to be positioned on a drill floor (F) over a well bore and is capable of withstanding severely adverse weather, environmental or geologic conditions. The derri...
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WO/1997/008419A1 |
A multi-linked working boom (36) for a working machine (10) carries at the other end a hydraulically manoeuvrable and hydraulically driven working tool/rock drilling equipment (17). The boom (36) comprises a first pair of link arms (11, ...
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WO/1997/006348A1 |
Rock and other hard materials, such as concrete, are broken by a combination of a mechanical impact breaker (33, 47) and a small-charge blasting process. A mechanical impact breaker (33, 47) fragments rock by delivering a series of mecha...
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WO/1997/002402A1 |
A device is proposed for drilling holes and/or slits in the vertical and horizontal direction, in particular for drilling holes and/or slits in a stone block. The device comprises a self-propelled crane bridge (2) which runs on tracks an...
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WO/1997/001019A1 |
An arrangement for a telescope feeder of a rock-drilling machine, comprising two telescopic portions (3a, 3b), between which is connected an extension cylinder (6) and whereby the rock-drilling machine (1) moves along one telescopic port...
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WO/1996/041922A1 |
The invention relates to a method for improving the feasibility of a drilling rig of jack-up type. The drilling rig (1) has a frame part (2) comprising a working deck (1a) and an essentially plane shaped bottom (1b), in connection of whi...
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WO/1996/033335A2 |
A displaceable working apparatus provided with a platform having an extensible boom and being displaced on a guide rail is disclosed. The apparatus has a main frame secured to a main support which is movably secured to the guide rail and...
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WO/1996/033337A1 |
The arrangement comprises a pressure medium cylinder (2) provided with two cylinder spaces (2a, 2b) and two pistons (3a, 3b), and a control valve (12). The control valve (12) can be placed in at least three control positions but in only ...
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WO/1996/030627A1 |
Drilling device comprising a frame (1) with a feed device (2) which carries a drilling device (3) movable to-and-fro for rotation of a drill string (4). The drilling device comprises means (6) for sensing an end (7) of a drill string ele...
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WO/1996/029503A1 |
In the arrangement, a feed beam (1) made of an aluminium profile comprises a slide guide frame (1a), whereby the outer surface of the slide guide frame (1a, 1b) and respectively, the inner surface of the slide guide (6a, 6b) are shaped a...
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WO/1996/028633A2 |
An apparatus for injection of coiled tubing or jointed tubulars into a well bore, using an injector head (12) capable of handling either type of tubular. The injector head and a working platform (14) are mounted on a structure over the w...
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WO/1996/024753A1 |
A continuous control system for a mining or tunnelling machine having a boom (12) with a motor driven cutting head (14) at one of its ends and a rotatable turret (20) at the other end, the control system comprising angular encoders (40, ...
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WO/1996/011322A1 |
A mobile drilling rig has a rectangular tubular derrick or mast (19) normally transported on the truck in a generally horizontal attitude. The mast (19) is pivoted to vertical at the drilling site. A drill rotating power head (36) is con...
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WO/1996/008631A1 |
A portable top drive drilling unit that is a self-contained assembly of components adapted for quick installation in a drilling rig and which requires a minimum of modification to the rig structure.
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WO/1996/007012A1 |
An arrangement for limiting the swing angle of a boom (1) for a rock drilling unit when the boom (1) is being lifted and lowered. In the arrangement, a control member (12) is coupled to the boom (1), turning therewith, said member compri...
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WO/1996/007014A1 |
An arrangement for mounting swing cylinders in a boom for a rock drilling unit, comprising a frame (1), a boom (2) pivotally connected about vertical and horizontal shafts (3, 4), relative to the frame (1), a lift cylinder (5) connected ...
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WO/1996/006714A1 |
A stand (10) for a stone-working machine, especially a core boring machine, has a support rod (12) and a slide (20) adjustable for height thereon with a tool holder (25) to which can be secured a drive unit (19) and a tool (18) rotatably...
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WO/1996/007013A1 |
An arrangement in a boom for a rock drilling unit, comprising a boom (1), pivotally connected to a frame (2) about a shaft (3), a lift cylinder (4) between the boom (1) and the frame (2), at the other end of the boom a feed beam pivotall...
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WO/1996/001360A1 |
A soil sampler (10) for taking soil samples at multiple locations around a vehicle is disclosed. The soil sampler (10) has a probe (82) for withdrawing soil samples from the ground. The probe (82) is suspended on a support structure or b...
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WO/1995/023276A1 |
The invention relates to an arrangement and a method for controlling a boom in a rock drilling equipment, the boom (1) comprising several actuating devices (18a to 18d) connected in parallel to supply and return lines (16, 17) for hydrau...
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WO/1995/021985A1 |
A drilling support unit for drilling holes in rocks is disclosed. A drive, in particular a hydraulic hammer, is guided in the drilling direction by a guide. The support unit is swivellingly mounted on a movable transport device. A hinge ...
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WO/1995/012040A1 |
Drilling apparatus which comprises a frame operating as an underlay having in the drilling direction mounted guide tracks (4), a rotating and pushing unit which is moved on said guide tracks in the drilling direction and in which unit th...
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WO/1995/006800A1 |
Arrangement for mounting slides between a rock drilling machine (4) and a carriage (3) or the like mounted slideably with respect to the feeding beam (1) of the drilling machine. In the arrangement, slide frames are formed by an integral...
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WO/1995/001496A1 |
An arrangement for controlling the oscillation of a rock drilling equipment, comprising oscillation cylinders (5, 6) acting between a body (4) and two crawlers (1, 2), an oscillation selector valve (16) allowing the oscillation cylinders...
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WO/1994/023173A1 |
A method and apparatus for erecting a vertical mast on a drill platform in the absence of a functioning drawworks. A guide section is first placed on the platform. The guide section has one vertical side for slidably receiving the mast t...
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WO/1994/013926A1 |
A mole launcher (2) has a hydraulically powered double acting piston and cylinder unit (56) to push or pull a slider (36). The slider carries a drill head (76, 78, 80) connected to a drill string. The other end of the drill string carrie...
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WO/1994/006999A1 |
An arrangement for measuring the position of a feed beam (1) in a rock drilling apparatus relative to a cradle (4) therein, or measuring the position of a rock drill (3) relative to the feed beam (1). In the arrangement an inelastic, fle...
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WO/1993/020289A1 |
A method and apparatus for transporting and using a drilling apparatus (10) or a construction crane apparatus (308) from a single movable vessel is provided. Either a drilling apparatus or a construction crane apparatus is skidded onto t...
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WO/1993/018311A1 |
The invention relates to a plug (11) to be fixed to a tube (10) by means of a glue joint, which, when the plug is glued, the glue is fed when the plug (11) is in position in the tube (10). The surface of the plug (11) to be glued or the ...
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WO/1993/009329A1 |
A drilling machine includes a boom assembly (34) which has two straight parallel longitudinal beams (50) of extruded steel, each of a section defining straight parallel inwardly and outwardly facing channels, a drilling head (24) in a ca...
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WO/1993/001364A1 |
The machine comprises a mobile, self-propelled frame (1), which carries a mast (7) with a driving head, which either by means of a chain and a hydraulic motor (48) may be pulled down towards the foot of the mast, or by means of a hydraul...
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WO/1993/000286A1 |
The invention relates to a hoisting boom assembly comprising: an upright column (1) being pivotable by means of a rotary actuator; a second boom (3) having its first section (I) and its second section (II) journalled (5) to be pivotable ...
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WO/1992/021853A1 |
A hole indexing device is intended for drilling a line of holes (2) in a lithoidal wall (1), such as concrete, rock, stone or the like, by drilling a plurality of successive holes therein. A hole indexing device (9) is fitted in a drilli...
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WO/1992/021852A1 |
A drilling apparatus operated by a method of the invention for drilling a line of holes (2) in a rock wall (1) comprises a frame (3) braced on rock wall (1) by means of supporting elements (4) and said frame (3) supportingly carries a dr...
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WO/1992/018741A1 |
A method of reducing the maximum weight per trip for transporting by helicopter the components required for outfitting a derrick for drilling an oil or gas well in which a major weight component is the line utilized with the derrick draw...
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WO/1992/009787A1 |
A method, a rock drilling equipment (1) a measuring device (10) for aligning a feeding beam (5) in the rock drilling equipment (1) with a drilling direction. In the method, an angle Sg(g) between the drilling direction (Sp) and a directi...
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WO/1992/006279A1 |
A method of aligning the feeding beam (6) of a rock drilling equipment by means of gravity-operated sensors (7x, 7y) indicating the inclination of the feeding beam (6). In the method, the angle values (alpha, beta) of the feeding beam (6...
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