Abstract: Embodiments of a debris catcher and a debris catching system are disclosed herein. In one embodiment, a debris catching system comprises a plug and a debris catcher, the debris catcher including at least a debris catching sleeve, a running tool coupled to the debris catching sleeve, the running tool including an uphole end and a downhole end, and further wherein the uphole end of the running tool is configured to slide to engage a downhole end of the debris catching sleeve and form a collection base of the debris catcher; and a coupling rod attached to the uphole end of the running tool, the coupling rod configured to engage a downhole setting device; wherein the plug is removably coupled with the downhole end of the running tool during downhole deployment of the debris catching system.

Abstract: The invention relates to a collecting device for collecting debris of deposits while said deposits are being removed from a wellbore wall or an equipment arranged in a wellbore of a subterranean formation in order to improve the recovery of formation fluids and/or gases, said collecting device being configured for being attached to a cleaning device, said cleaning device being configured for removing deposits from a wellbore wall or an equipment arranged in a wellbore. The collecting device comprises a deflector, configured for deflecting falling debris of deposits while said deposits are being removed from said wellbore wall or said equipment, and a debris storing module, connected to said deflector for collecting and storing debris deflected by said deflector.

Abstract: A riser magnet assembly having selectively removable magnet members can be incorporated within a riser assembly of a drilling rig to generate a magnetic field within a central bore of the riser assembly. The magnetic field catches falling metal objects and prevents such objects from passing beyond the magnet assembly and entering subsea equipment or subterranean portions of a wellbore without sacrificing fluid pressure integrity of the riser assembly. At least one stripper door is provided for easy access to inner portions of the magnet assembly.

Abstract: A pull back system to install or replace underground utilities that is used with a hammer used in horizontal directional drilling operations. The system comprises a drill bit attached to the hammer. The drill bit comprises a cutting face comprising a first and second passage. The system further comprises a pull back adapter comprising an attachment member, a first member, and a second member. The attachment member may be secured to the cutting face of the drill bit by inserting the first member of the pull back adapter through the first passage of the cutting face and inserting the second member of the pull back adapter through the second passage of the cutting face. The first member secures to the second member within an internal cavity of the drill bit to hold the attachment member for movement with the drill bit. A new pipe may be secured to a shackle on the pull back adapter. The drilling machine will then pull the hammer rearwardly through the borehole which in turn pulls the new pipe into the borehole.

Abstract: The invention provides a roof bolt installation tool which has a central drill bit. A plate surrounds the central drill bit and has radial drill bits attached to it so that when the central drill bit rotates, the plate rotates. A boot surrounds the plate and is rotationally isolated from the plate and central drill bit. When the drill bit cuts a central bore into a mine roof, the radial drill bits cut a recess having a horizontal surface. A roof bolt and support plate are installed such that the bolt is inserted in the central bore and the support plate abuts the horizontal surface.

Abstract: An electronics frame for a wired pipe drill string, including a housing arranged to be disposed within the wired pipe drill string. The housing includes a chamber formed therein and one or more electronic components disposed in the chamber. A shape memory element is disposed in the chamber. The shape memory element is transitionable in response to a transition stimulus between a first shape permitting positioning within the chamber and a second shape sealingly engagable with the housing to isolate the one or more electronic components from fluid. A method of isolating an electronic component is also included.

Abstract: The invention relates to a drilling device for producing a borehole in the ground with a drilling tool driven in a rotating manner for removing ground material and a container for receiving the removed ground material, wherein the container has a lower feed opening, through which the removed ground material can be introduced into the container. It is envisaged that the drilling tool comprises at least one drill flight arranged below the container and that in an inlet area to the container between the drill flight and the feed opening an inlet section is provided, the pitch of which is increased with respect to a pitch of the drill flight.

Abstract: In one embodiment, a sampling while drilling tool includes a drill collar having a first end, a second end, an outer wall extending between the first and second ends, and at least one opening extending through the outer wall to a cavity within the drill collar. The sampling while drilling tool also includes a sample chamber positionable in the cavity through the opening in the outer wall and a passage for conducting a drilling fluid through the drill collar.

Abstract: A drilling bucket for drilling a bore hole in the ground including a hollow cylindrical body and at least one cutting tool arranged at a lower side of the hollow cylindrical body for cutting soil material. The hollow cylindrical body has a lower opening for receiving soil material cut by the at least one cutting tool. For guiding the hollow cylindrical body in the bore hole an upper guiding device is provided which is arranged above the hollow cylindrical body and fixed to the hollow cylindrical body. The upper guiding device is configured to abut on a side wall of the bore hole.

Abstract: In one embodiment, a sampling while drilling tool includes a drill collar having a first end, a second end, an outer wall extending between the first and second ends, and at least one opening extending through the outer wall to a cavity within the drill collar. The sampling while drilling tool also includes a sample chamber positionable in the cavity through the opening in the outer wall and a passage for conducting a drilling fluid through the drill collar.

Abstract: The present disclosure provides drilling and tripping equipment packages and control schemes and methods using two or more lifting systems that operate simultaneously and continuously in a synchronized manner such that the feeding of tubular into or out of a well bore is achieved with continuous or near continuous movement, without the need for periodic interruptions. The drilling and tripping equipment packages and control schemes are also able to rotate the tubular in the well bore with continuous speed and torque sufficient for both drilling and back-reaming operations. The drilling and tripping equipment package and control scheme is additionally able to circulate drilling fluid into the internal bore of the tubular with sufficient pressure and flow to facilitate both drilling and back-reaming operations, with minimal interruption to circulation.

Abstract: A well system can include an accumulator in communication with a wellbore, whereby the accumulator applies pressure to the wellbore. A method of maintaining a desired pressure in a wellbore can include applying pressure to the wellbore from an accumulator in response to pressure in the wellbore being less than the desired pressure. Another well system can include a dampener in communication with a wellbore isolated from atmosphere, whereby the dampener mitigates pressure spikes in the wellbore.

Abstract: A steerable drilling system including a bias unit and a separator. The separator is arranged to remove particulate matter from the supply of pressurized drilling mud to the actuator of the bias unit. The separator includes a hydrocyclone located upstream of the actuators. The hydrocyclone includes a housing defining a substantially conical recess having a large diameter end and a small diameter end. An inlet is in fluid communication with the large diameter end for providing the drilling mud thereto. A first outlet is in fluid communication with the small diameter end for outlet of relatively dirty mud. A second outlet is in fluid communication with the large diameter end for outlet of a supply of relatively clean mud for the plurality of actuators.

Abstract: The invention relates to a drilling device for producing a drilling column in the soil comprising a mast, a drill drive arranged on a carriage, which is movably supported along the mast, a drilling tube which can be driven in a rotating manner by the drill drive and is movable along the mast in order to produce a drill hole, and a tube hopper that is connected to the drilling tube and comprises a storage space for filling material to fill the drill hole during the extraction of the drilling tube. In accordance with the invention provision is made for the tube hopper to be arranged in the drilling direction above the drill drive and to be connected to the drilling tube. The invention further relates to a method for producing a drilling column in the soil.

Abstract: A magnetic tool for retrieval of metal debris from a well bore particularly adapted for use in coil tubing systems. The tool has a cylindrical body and a plurality of separate magnet assemblies mounted on the tool body. The magnet assemblies are separated by spacers, which define a secondary settling area for the metal objects attracted to the magnetic tool.

Abstract: Some embodiments of the present invention are related to devices and methods for sampling groundwater at multiple target depths, wherein each of the devices for sampling groundwater at multiple target depths comprises: a hammer part having a spring for generating inertia and a hammer connected to the spring; a sampling needle part having a needle integral with a impacting part impacted with the hammer; a guiding part for moving the sampling needle part in straight and downward direction; and a sampled water containing part having a sampled water container for collecting the sampled water through the needle.

Abstract: The invention relates to a method for sinking a borehole in the ground, in which a wet boring tool with a removal area for producing or advancing a borehole is used, the borehole is at least partly filled with a fluid and in the borehole is formed a filling area and the removal area is at least partly washed round by a fluid flow, which conveys the bore smalls produced at the removal area to a collecting container located in the borehole. The method according to the invention is characterized in that the wet boring tool has a pumping mechanism through which fluid from the filling area is made to flow and conveys bore smalls produced into the collecting container. The invention also relates to a wet boring tool and to a boring plant.

Abstract: A bailer is configured to remove particulate solids from fluid passing through the bailer. The bailer preferably includes a housing that includes an intake and an outlet to permit the flow if well fluids through the housing. The bailer also includes a magnetic plate that includes at least one aperture that provides a path for the fluid flow. The bailer optionally includes one or more elongate magnetic bars that extend along the longitudinal axis of the bailer housing. The bailer can be used in conjunction with other components in a downhole pumping system, a surface pumping system or a transport system.

Abstract: A downhole fluid pump including a pump chamber, and a piston disposed in the pump chamber so that the piston will move in one selected from a charge stroke and a discharge stroke when the piston is exposed to a differential pressure. The downhole fluid pump may form part of a formation evaluation while drilling tool.

Abstract: Junk basket 10 is provided for collecting debris from a wellbore cleaning operation, and includes a central mandrel 14 having a throughbore 16 and an outer shell 24 defining a generally annular junk space 40. The outer shell 24 may be configured such that the annulus 27 includes a reduced portion 28. Flow holes 30 in the outer shell are preferably angled substantially upward, and are positioned to discharge fluid to the annulus 27. According to a method of the invention, fluid is passed from an upper tubing string, through the central mandrel, into the wellbore and upward through the annulus and past the flow holes, thereby reducing pressure of flow past the well holes to pass fluid from the junk space through the flow holes.

Abstract: A boring apparatus is described which comprises a substantially hollow vessel with a fixed base and a rotatable base. The rotatable base is provided, at its circumference, with at least one side cutter which rotatable with the rotatable base from a first position, in which the at least one side cutter serves to cover a respective opening provided in the vessel wall, to a second position, in which the opening in the vessel wall is exposed.

Abstract: An excavation cleaning tool or dredge is provided which rotates and scrapes together and captures the loose soil, sand and gravel debris at the bottom of the hole to provide a clean, flat-bottomed hole which is free of compressible excavation waste material.

Abstract: A pressure and temperature core sampler comprises a tool for recovering cores specifically enabling the evaluation of methane hydrate resources. Because methane hydrate tends to decompose under conditions of pressure decrease and/or temperature increase as the samples are retrieved to the surface, a coring tool in accordance with the present invention provides a self-contained system for retrieving core samples at or near in situ pressure while cooling the core sample. The coring tool is preferably a wire line retrievable device that provides for nearly continuous coring during the drilling operation.

Abstract: A drilling tool is adapted for being releasably mounted to a lower end of a rod string (20) of a drilling rig (30) and includes a container (2) having a cylindrical or truncated-cone shape fitted at the lower end with a plurality of cutting tools or cutters (10) for crushing rock. The drilling tool (1) further includes a plate (3) for releasably retaining a plurality of modular elements (14) forming a load (13), and curved blades (9), which are located proximate to the cutting tools (10), adapted for conveying rock spalls into the container (2) through suitable apertures (8) in a bottom of the container (2). The cutting tools (10) are mounted to a plurality of radial plates (7) securely fixed proximate to the bottom edge of the container (2). The curved blades are welded to the edges of the radial plates (7), the concavity of each blade (9) being arranged facing the direction of rotation of the drilling tool (1).

Abstract: A cleanout tool for removing debris from a deep borehole, the borehole being characterized by having a relatively low hydrostatic head or level of liquid in the borehole. A series of unique check valves acting in cooperation with a pumping section are used to collect the debris into the debris reservoirs while passing the liquid upwardly through the cleanout tool. The check valves are unique in the fact that they are less prone to plugging and two sets are supplied in pairs so as to provide an extra margin of valving efficiency. The cleanout tool is operable in under low hydrostatic head conditions due to its improved pumping efficiency.

Abstract: Device for collecting particulate matter and debris in horizontal or highly-deviated oil or gas wells, comprising a cylindrical housing (10) enclosing a collecting chamber having at least one radial port (7A, B) at a distance from an inner end (5) of said chamber (1), and a piston-like sleeve (3) normally and in a starting position closing said port(s). Releasable means (9) retain said sleeve (3) in said starting position and a spring (8) urges said sleeve (3) towards said starting position. The sleeve (3) has a central axial opening (3D) as well as a differential area (3C) exposed to the pressure outside said chamber (1) in said normal or starting position, whereby upon releasing of said releasable means (9) said outside pressure will move said sleeve (3) towards said inner end (5) of the chamber (1) and open said port(s) (7A, B) so as to collect a quantity of said matter and debris in the chamber.

Abstract: A soil sampler to be mounted on a vehicle such as a pick-up truck, has a frame for mounting on the vehicle and a vertical hydraulic cylinder connected at its upper end to the frame. A sample taking probe is connected to the rod of the cylinder which drives the probe vertically into the earth. A sample collecting receptacle is mounted on the frame for downward guiding movement with the probe to a position close to the earth. As the probe is retracted, the sample in the probe is extracted through an open side of the probe into the lowered receptacle. The receptacle is lifted during final retraction of the probe so that both the probe and receptacle are spaced sufficiently above the ground to move the vehicle to another sample taking location.

Abstract: A drilling device which can be lowered in a drill hole consists of a drive device, a drill which is rotated by this drive device and a clamping device formed as a unit which can be engaged with the inside wall of the drill hole and serves to transfer the torque of the drive to the drill. The drill consists of a ring-shaped housing, the outside diameter of which corresponds with the diameter of the drill hole and the upper part of is closed off by a plate. The housing contains several cutting tools which are equipped with bore crowns which serve to cut out a drill core and which are arranged at uniform distances and parallel with the longitudinal axis of the drilling device. Using additional drive devices, the cutting tools are designed to impart impact impulses and/or additional rotational movements in an axial direction. All drive devices are fluid actuated in such a manner that the clamping device is actuated initially and the drill is subsequently activated by the increasing pressure of the fluid medium.

Abstract: A tool (10) is disclosed which permits retrieval of an object (201) from within a bore hole having debris (210) surrounding the object. The tool (10) includes an upper assembly (12) and a lower assembly (14). The upper assembly (12) is secured to a drill or tubing string assembly (16) extending to the surface. The lower assembly (14) mounts the wash pipe (200). The lower assembly (14) includes a debris chamber (144) and a trap valve (148) for permitting one-way flow of debris and fluid therein. In hydrostatic operation, a lower valve assembly (126) is provided for opening to expose the upper portions of the tool (10) to the bore hole pressure and drive debris and fluid through the wash pipe and into the debris chamber. This activity permits the tool and wash pipe to move downwardly in the bore hole so that the wash pipe surrounds the object. Settling debris wedges the object within the wash pipe for removal.

Abstract: A tool (10) is disclosed which permits clean-out of a bore hole in either a hydrostatic or hydraulic operation. In addition, the tool (10) may be used to drill a formation within the bore hole without the need for circulation of fluid to the surface to remove cuttings from the formation. The tool (10) includes an upper assembly (12) and a lower assembly (14). The lower assembly (14) includes a debris chamber (144) and a trap valve (148) for permitting one-way flow of debris and fluid therein. In hydrostatic operation, a lower valve assembly, (126) is provided to prevent fluid entry into the spaces above the assembly in the tool and drill or tubing string assembly until the tool reaches the debris in the bore hole. Downward motion of a seal, guide and swab piston assembly (102) opens the valve assembly to drive the debris and fluid into the debris chamber. In hydraulic operation, the lower valve assembly (126) is removed and an upper valve assembly (40) is positioned within the upper assembly.

Abstract: A cable tool (10) includes a tool bit (12), a drill stem (14) and an adapter (16). Openings (32) are formed in a cutting face (18) of the tool bit (12) and inclined bores (34) extend upwardly within the tool bit (12) to an upwardly extending bit passageway (36). A retention chamber (46) is formed in the drill stem (14) communicating with the bit passageway (36) for storing rock and earth particles. An adapter passageway (52) communicates with the retention chamber (46) and includes a liquid drain (24) to drain water from the adapter passageway (52) and the retention chamber (46). Optionally, a flapper valve (64) may be mounted within the retention chamber (46) adjacent the bit passageway (36).

Abstract: A metal cup with an apertured bottom provides a junk basket. The cup is spindled on the pin of a drill bit, e.g. a tungsten carbide insert roller cone bit, the bottom edge being releasably clamped between the pin shoulder and the shoulder formed by the mouth of the box on the member forming the lower end of the drill stem, e.g. a roller reamer. The connection between the pin and box and cup form a rotary shouldered connection, the pin shoulder and/or box mouth being cut back providing a longer pin neck or shallower box to accommodate the cup. Every time the bit is removed from the stem, the interiorly upwardly flaring cup is automatically dumped. In a modification, especially for small diameter holes, in order to provide space for junk to move both up outside the cup and down into the cup, the box on the adjacent drill stem member can be fluted, e.g.

Abstract: In abstract, a preferred embodiment of this invention is a soil sampler having a specially designed tip for easy penetration, a movable slot cleaner for cutting away surface soil that clings as the sample is taken, and depth markings for allowing accurate gauging of the samples. This invention also includes handles that are off-set 90.degree. from an open soil slot to allow the sampler to be placed horizontally on the ground with the slot upright without danger of tipping.

Abstract: A tubular, flexible rubber-like junk boot is positioned on the lower end of a drill string, blade-type stabilizer to catch small but dense particles of debris which are not removed from the hole by the drilling fluid. The boot has means on its lower end for clamping the boot in place.

Abstract: A flame jet tool for drilling a hole in the ground at great depths is disclosed. The tool comprises a flame jet lance having a drill bit and an associated fuel system. The lance is disposed in a guide sheath such that the lance may be raised and lowered therefrom. The tool may also include means for capturing debris. In operating the flame jet tool of the present invention, the guide sheath is lowered into a preexisting well hole a specific distance. The guide sheath is fixed to the sides of the hole and the flame jet lance is lowered from the guide sheath. At a predetermined point, the drill bit is ignited and caused to rotate thus increasing the depth of the hole. By the use of the flame jet tool of the present invention, holes of significant depth can be increased and materials of extraordinary hardness can be pierced.

Abstract: The specification describes a drilling jar for connection in a rotary drill string. There is a trap space in the jar for collecting the products of wear between its moving parts. The drilling jar includes a generally tubular housing assembly, which has near its bottom, a wash pipe sleeve. There is a tubular mandrel assembly extending into the housing and movable with respect to it, which has near its bottom a wash pipe that slides in the sleeve. An annular trap space is defined near the top of the sleeve between its outer surface and an inner surface of the housing. Wear products are collected in the trap space and thereby prevented from entering between the wash pipe and sleeve where they would cause abrasion.