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WO/2012/060711 |
A drilling device with a drilling derrick above a base structure 2, wherein the drilling derrick 1 is provided with a winch 13 and a snatch block (14) for lifting and lowering a drilling machinery 7 connected to the surface via three or ...
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WO/2012/060743 |
A rock drilling rig with four individual propulsion units and individual means for the height adjustment relative to the chassis of the vehicle for each one of the four propulsion units, and in the same way individual means for changing ...
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WO/2012/061096 |
A position reference system (100) for multilateral exit construction in a wellbore (32). The system (100) includes a casing string (34) having a window joint (106) and a pair of latch couplings (102, 104) interconnected therein and posit...
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WO/2012/059642 |
The invention relates to a rock drilling rig and to a method for transmission thereof. The rock drilling rig (1) comprises a carriage (2) movable by drive equipment (16) in a mine. The rock drilling rig comprises a hydraulic drilling sys...
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WO/2012/059578 |
The invention provides a system for lining a wellbore, and a method for using said system. The system comprises: a drill string (20) for drilling the wellbore; an expandable tubular element (4) enclosing the drill string, wherein a lower...
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WO/2012/059641 |
The invention relates to a method for coupling an earth pipe into the ground when exploiting an apparatus that has a drilling device (1 ), consisting of a casing part (2) and a drilling unit (3) inside thereof, which drilling unit includ...
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WO/2012/061465 |
Assemblies that can be disposed in a subterranean bore are described. An assembly can include a surface that can divert a cutting tool for creating a branch wellbore and that can divert a completion component for completing the branch we...
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WO/2012/059859 |
A method of completing a subterranean well having a well casing extending though an earth formation is provided, including the steps of: suspending an apparatus at a selected depth within the well casing; creating an unbalanced condition...
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WO/2012/059574 |
The invention discloses a system (fig.1) and a method for lining a wellbore. The system comprises a drill string (20) for drilling the wellbore; an expandable tubular element (84) enclosing the drill string (20), wherein a lower end port...
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WO/2012/056011 |
In a method for the underground placement of a pipeline (20) of a specified diameter between a starting side (2) and a target side (4), a pilot drill hole (16) is first created from the starting side (2) to the target side (4), a drillin...
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WO/2012/052597 |
The object of the invention is a method in an earth drill bit arrangement assembly and a bit arrangement. In the method at least the outer bit (3) of an earth drill is connected to a casing shoe (2) functioning as a coupling ring such th...
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WO/2012/054440 |
An offshore structure comprises a hull having a longitudinal axis, a first end, and a second end opposite the first end. In addition, the structure comprises an anchor coupled to the lower end of the hull and configured to secure the hul...
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WO/2012/050459 |
A guide post (1) for use in the final part of a guided lowering of equipment (20) toward a predetermined point, or location (30), on the seabed, is described. The guide post (1) is continued, or extended, in a guide wire running towards ...
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WO/2012/051338 |
The present disclosure relates to a system for installing an energy transfer loop in a bore. The energy transfer loop includes first and second geothermal exchange pipe sections interconnected by a U-shaped portion that couples the first...
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WO/2012/049353 |
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 r...
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WO/2012/047837 |
An expandable apparatus may comprise a tubular body, a valve piston and a push sleeve. The tubular body may comprise a fluid passageway extending therethrough, and the valve piston may be disposed within the tubular body, the valve pisto...
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WO/2012/047847 |
A status indicator for determining a position of an extendable member in an expandable apparatus. The status indicator is configured to decrease a cross-sectional area of a portion of a fluid path extending through an expandable causing ...
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WO/2012/047693 |
The present disclosure relates methods and apparatuses for testing and sampling of underground formations or reservoirs. The apparatus may include at least one extendable element configured to penetrate a formation. The at least one exte...
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WO/2012/047863 |
An expandable apparatus may comprise a tubular body, a valve piston and a push sleeve. The tubular body may comprise a fluid passageway extending therethrough, and the valve piston may be disposed within the tubular body, the valve pisto...
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WO/2012/044138 |
The present invention relates to a tunnel excavation technique using a water jet. A water jet system includes: a moving unit forwardly and backwardly movable toward a blasting object area for excavating a tunnel; an articulated robot arm...
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WO/2012/042119 |
The invention relates to an arrangement for mounting a cage to a lifting boom of a rock drilling rig comprising a carrier (1 ) to which the lifting boom (4; 5) is connected horizontally and vertically turnably, as well as actuators for t...
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WO/2012/044127 |
A punching device having a head part includes a punching device body, a lead supported by the punching device body, a driving shaft slidably installed on the lead and to which a unit rod for punching is connected, and a head part includi...
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WO/2012/038583 |
The invention relates to a method and an apparatus for down-the-hole drilling, the drilling being carried out by an apparatus having a drilling device consisting of a casing part (2) and a drilling unit (3), inside thereof. The drilling ...
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WO/2012/040570 |
In an aspect, an apparatus for use in a wellbore includes a tubular and a drilling assembly configured to carry a drill bit at an end thereof, wherein the drilling assembly is configured to be positioned within the tubular, wherein the t...
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WO/2012/037452 |
A method and apparatus for steering a drilling assembly within a reservoir of an earth formation is disclosed. The drilling assembly is positioned within the reservoir between a conductive upper layer having a DC magnetic field and a con...
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WO/2012/037458 |
In one aspect a method of drilling a borehole is disclosed, wherein the method includes generating a primary electromagnetic field with a transmitter in a second borehole spaced from the first borehole, the primary electromagnetic filed ...
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WO/2012/036763 |
A system including a setback and racking system and a set of wellbay accesses, at least a portion of the setback and racking system positioned at an elevation lower than the elevation of the wellbay accesses. A system including a central...
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WO/2012/031353 |
A steerable drilling apparatus includes a control system inside a cylindrical housing connected to a drill bit having radially-extendable pistons. A piston-actuating fluid flows from the housing and through a fluid-metering assembly whic...
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WO/2012/033872 |
A system for offshore disposal of drill cuttings including a cleaning system for treating contaminated drill cuttings into drill cuttings and contaminants; a transport system for moving the drill cuttings; a slurrification system for mak...
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WO/2012/030926 |
A drill bit according to one embodiment includes a center member configured to rotate at a first speed and an outer member disposed outside the center member, wherein the outer member is configured to rotate at a second speed. The drill ...
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WO/2012/030926 |
A drill bit according to one embodiment includes a center member configured to rotate at a first speed and an outer member disposed outside the center member, wherein the outer member is configured to rotate at a second speed. The drill ...
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WO/2012/030272 |
A hydraulic impact mechanism, of the valveless impact mechanism type, comprising a pre-charged gas accumulator connected to a working chamber in order to make possible impact mechanisms for equipment for rock drilling and hydraulic break...
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WO/2012/028974 |
The current application discloses methods and systems for conducting operations to subterranean formations. The system comprises a platform, a grillage mounted on the platform, at least one module for treating the subterranean formation,...
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WO/2012/030269 |
The invention relates to an oxygen lance igniter (1) for igniting a thermal oxygen lance (9), intended to be slipped over the mouth of the oxygen lance, up to a certain position, and to ignite the oxygen lance (9) under a supply of oxyge...
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WO/2012/030220 |
A method for introducing a hollow elongated structure into a water bottom of a body of water. A hollow foundation pile for a wind- or water turbine is provided. The provided structure has an inner space, a proximal end and an open distal...
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WO/2012/027637 |
A downhole magnetic latching tool includes at least one permanent magnet deployed on a non-magnetic tool body. A magnetically permeable housing is deployed about the permanent magnet. The magnetic latching tool provides an attractive mag...
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WO/2012/027105 |
An acoustic surveying method includes computing at least one of a distance and direction between first and second subterranean boreholes. An acoustic pulsed is transmitted into a subterranean formation from the first borehole and receive...
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WO/2012/021927 |
A centraliser for use in a rock drill rig is disclosed. The centraliser includes a clamping member which moves generally tangentially to a bush, in order to clamp the bush in place within the centraliser.
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WO/2012/024073 |
Techniques for analyzing operation of drill bit in a borehole are disclosed herein. A method for analyzing operation of a drill bit in a borehole includes providing information describing the drill bit and a bent housing coupled to the d...
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WO/2012/024474 |
A system for measuring directional characteristics of a downhole tool includes: at least one bending moment (BM) measurement device disposed at a downhole component, the at least one BM measurement device configured to generate bending m...
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WO/2012/023985 |
Reamer elements for use with roller reamers and other types of reamer apparatuses, methods for forming such reamer elements, and methods for performing drilling operations using such reamer elements are disclosed. The reamer element incl...
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WO/2012/024127 |
A closed-loop method for geosteering includes acquiring logging while drilling data and processing the logging while drilling data downhole while drilling to obtain a geosteering correction (a correction to the drilling direction based u...
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WO/2012/024474 |
A system for measuring directional characteristics of a downhole tool includes: at least one bending moment (BM) measurement device disposed at a downhole component, the at least one BM measurement device configured to generate bending m...
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WO/2012/021302 |
A drill string assembly is required that has the capability of operating in well bores that range in hole size from seven to eight inches in diameter. The assembly is used to obtain a large core sample size that is equal to three and one...
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WO/2012/021327 |
A vibratory unit interposed between a planetary drive and earth- penetrating device, e.g., an auger, is powered by the hydraulic system of a tractor, skid loader or the like. The unit includes a housing having a base plate with a slidabl...
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WO/2012/021302 |
A drill string assembly is required that has the capability of operating in well bores that range in hole size from seven to eight inches in diameter. The assembly is used to obtain a large core sample size that is equal to three and one...
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WO/2012/021327 |
A vibratory unit interposed between a planetary drive and earth- penetrating device, e.g., an auger, is powered by the hydraulic system of a tractor, skid loader or the like. The unit includes a housing having a base plate with a slidabl...
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WO/2012/018620 |
An apparatus energizes a consumer of a pressurized fluid using a high pressure source and a low pressure source. The apparatus may include a fluid circuit in fluid communication with the consumer. The fluid circuit may have a first and a...
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WO/2012/018920 |
An apparatus for generating electrical energy in downhole tool is disclosed. In one exemplary embodiment, such apparatus includes a tubular configured to flow a fluid within the tubular and an energy conversion device at a selected locat...
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WO/2012/016833 |
The invention relates to a holding apparatus (27) for a drill rod (15) of a taphole drilling machine (10) and to a method for removing a drill rod from a drill rod receptacle (17) from a taphole drilling machine, wherein the taphole dril...
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