Abstract: A center drill floor assembly of a drilling rig structure includes a center floor structure and a drilling rig mast section that is at least partially nested within the center floor structure, wherein the center drill floor assembly is adapted to be transported to a drilling site as a single modular assembly and removably attached as a single modular assembly to a drilling rig substructure during assembly of the drilling rig structure.

Abstract: A hydraulic drilling system and method for drilling a borehole from a wellbore are disclosed. The system comprises a whipstock that is selectively rotatable about the central long axis of the work string, for repositioning the whipstock exit radially, without extracting the whipstock or the workstring from the wellbore. The system includes an extendable and contractible second work string for absorbing any axial forces on the work string. The system may also include a positional measurement device and the distal end of the drill tubing may be selectively steerable. The system may be used to drill a plurality of boreholes from the same wellbore. In one aspect of the method, an earth measurement device and/or an earth manipulation device is placed downhole.

Abstract: An apparatus having a skid, a boom having a first end attached to the skid and pivotable around an axis proximate the first end such that a second end of the boom raises and lowers relative to the skid, and a room mounted on the skid. The apparatus may further include a raisable apparatus supported by the second end of the boom and having one or more plug panels configured to connect to one or more first cables. The apparatus may also include second cables routed from the raisable apparatus and attached to and supported at least in part by the boom, wherein the second cables may be configured to provide electrical power to the raisable apparatus.

Abstract: An apparatus having a skid, a boom having a first end attached to the skid and pivotable around an axis proximate the first end such that a second end of the boom raises and lowers relative to the skid, and a room mounted on the skid. The apparatus may further include a raisable apparatus supported by the second end of the boom and having one or more plug panels configured to connect to one or more first cables. The apparatus may also include second cables routed from the raisable apparatus and attached to and supported at least in part by the boom, wherein the second cables may be configured to provide electrical power to the raisable apparatus.

Abstract: A drilling rig may include a right substructure, left substructure, and a drill floor. The drill floor may be pivotably coupled to lower boxes of the left and right substructure by struts. The substructures may include hydraulic cylinders positioned to raise the drill floor and a mast coupled to the drill floor into a raised position.

Abstract: An apparatus for rotating a tube or rod is provided. The tube or rod is supported from a mast of a rig and for insertion into a well. The apparatus includes a rotation member for rotating the tube or rod. The rotation member is mounted on the well such that in use, the tube or rod is fed into the rotation member, from above the rotation member, and into the well.

Abstract: A land-based drilling rig includes a first substructure and a second substructure, the second substructure being positioned generally parallel to the first substructure. The land-based drilling rig also includes a drill rig floor coupled to the first and second substructures, the drill rig floor including a V-door. The side of the drill rig floor has the V-door defining a V-door side of the drill rig floor, where the V-door side of the drill rig floor is parallel to the first substructure. The first and second substructures pivotably support the drill rig floor. The land-based drilling rig also includes a mast, the mast mechanically coupled to one or more of the first substructure, the second substructure, and the drill rig floor. The mast is pivotably coupled to one or more of the first substructure, the second substructure, and the drill rig floor by a mast pivot point. The mast includes a V-door side, the V-door side of the mast parallel to the first or second substructure.

Abstract: A device for suspending a tubular from a floating vessel includes a first element which carries the tubular, a second element supported by the floating vessel, and a compression element which forms a connection between the first element and the second element. The compression element is pre-tensioned in an end stroke position so that, when the compression element is subjected to a force from the tubular which is below a pre-defined threshold force, the connection formed by the compression element between the first and second element is a rigid connection, and, when the compression element is subject to a force from the tubular which is higher than the pre-defined threshold force, the connection formed by the compression element between the first and second element is a compressible connection.

Abstract: A device for a drill rig comprising a ruggedized housing and a sensor contained in the ruggedized housing, the sensor adapted to measure at least one condition of a lubrication oil of an equipment on the drill rig. In an embodiment, the ruggedized housing can have a Class I, Division 1 & 2 standard rating according to UL1203 & FM3600(3615).

Abstract: A machine engine enclosure arrangement that has sound reducing elements allows for the overall sound rating of the machine to be decreased. The engine enclosure includes a housing that has a housing length and a housing width. The housing defines a housing axis that extends along the housing length and the housing axis defines a vertical reference plane. The vertical reference plane is perpendicular to a ground surface on which machine is resting. The engine enclosure further includes a radiator fan that is configured to provide air flow across the radiator. The radiator fan has a diameter greater than the housing width and defines a fan plane perpendicular to an axis of rotation of the radiator fan. The radiator fan is positioned between the side walls of the housing so that the fan plane is at a non-perpendicular angle with respect to the vertical reference plane.

Abstract: The drilling rig includes a first substructure and a second substructure. The second substructure is positioned generally parallel to and spaced apart from the first substructure and generally the same height as the first substructure. The drilling rig further includes a drill rig floor coupled to the first and second substructures, where the drill rig floor positioned substantially at the top of the first and second substructures.

Abstract: A land-based drilling rig includes a first substructure and a second substructure, the second substructure being positioned generally parallel to the first substructure. The land-based drilling rig also includes a drill rig floor coupled to the first and second substructures, the drill rig floor including a V-door. The side of the drill rig floor has the V-door defining a V-door side of the drill rig floor, where the V-door side of the drill rig floor is parallel to the first substructure. The first and second substructures pivotably support the drill rig floor. The land-based drilling rig also includes a mast, the mast mechanically coupled to one or more of the first substructure, the second substructure, and the drill rig floor. The mast is pivotably coupled to one or more of the first substructure, the second substructure, and the drill rig floor by a mast pivot point. The mast includes a V-door side, the V-door side of the mast parallel to the first or second substructure.

Abstract: The drilling rig includes a first substructure and a second substructure. The second substructure is positioned generally parallel to and spaced apart from the first substructure and generally the same height as the first substructure. The drilling rig further includes a drill floor coupled to the first and second substructures, where the drill floor positioned substantially at the top of the first and second substructures.

Abstract: The drilling rig includes a first substructure and a second substructure. The second substructure is positioned generally parallel to and spaced apart from the first substructure and generally the same height as the first substructure. The drilling rig further includes a drill floor coupled to the first and second substructures, where the drill floor positioned substantially at the top of the first and second substructures.

Abstract: The disclosure of this application is directed to a downhole tool comprising a central element/member and a sleeve that is rotatably and orbitally disposed around the central element/member. The sleeve rotates and orbits around the central element/member responsive to fluid flowing through the downhole too. The disclosure is also related to a method of advancing the downhole tool in a well by flowing fluid through the tool.

Abstract: An integrated casing drive system combines a top drive having a rotary drive portion, a pipe handler having a casing gripper wherein the pipe handler is rotationally mounted to the top drive, and a selectively actuable casing drive lock for locking the rotary drive portion to the pipe handler.

Abstract: A method for erecting a drilling rig and an apparatus therefor having a mast, a base, a floor support, legs arranged between the base and the floor support, a primary lifting ram in engagement with the mast, and a floor support lifting ram, is disclosed. The method involves raising the mast with the primary lifting ram, raising the floor support with the floor support lifting ram to an intermediate height, engaging the primary lifting ram with the floor support and raising the floor support from the intermediate height to full working height with the mast lifting ram.

Abstract: A method for blending a well treatment fluid at a well site is disclosed. A first centrifugal pump for pumping a first component of the well treatment fluid into a pipe and a first valve for controlling the flow of the first component are provided. Similarly, a second centrifugal pump for pumping a second component of the well treatment fluid into the pipe and a second valve for controlling the flow of the second component are provided. The pumps and the valves are controlled so as to control the ratio of the first component to the second component. A sampling device is provided for analyzing a fluid flowing in the pipe. The sampling device includes a sampling container; a soft seal that opens and closes the sampling container; and a valve spindle. The valve spindle moves the soft seal between the first position and the second position.

Abstract: A drilling apparatus (100) includes a drill bit (200), a heating assembly, a cooling assembly, and a digging assembly. The heating assembly is configured to rapidly heat a material to be drilled at a target location. The heating assembly includes one or more first discharge structures (520) configured to discharge a high-temperature substance at the target location of the material. The cooling assembly includes one or more second discharge structures (440) configured to discharge a low-temperature substance at the target location of the material. The digging assembly is configured to remove substrate from the material at the target location.

Abstract: A land rig including a mast, a substructure beneath the mast, the substructure having a top part, movement apparatus connected to the substructure, the movement apparatus connected to the mast, the movement apparatus for moving the mast and for moving the top part of the substructure. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 CFR 1.72(b).

Abstract: A post driver with a rising mast (optionally with a hinging shield for the hammer or monkey/post interaction zone) where a mechanical advantage on movement of the hammer or monkey, (as the mast moves) arises from a carriaged pulley interposed between ram assemblies.

Abstract: The assembly is designed to convert a conventional land rig to "top drive". It comprises a torque track that is shipped in sections and is assembled to form a rigid track extending vertically in the derrick. The track is rigidly attached to the derrick only at its base, so that the track is free to twist and deflect laterally along its length. The housing of the top drive is connected by an angled, pivotally mounted link means with a tubular bushing that embraces and slides along the track. The link means and bushing are adapted to restrain rotation of the housing relative to the track, while transmitting both side and torque reactive loads to the track. The angled pivoting link enables the top drive to be displaced outwardly to a position over the mousehole. The top drive incorporates a hydraulic motor and gear drive assembly for rotating a drive shaft connecting the drill string and hoisting means. The housing does not carry the drill string load and can be made lighter and more compact as a result.

Abstract: A well rig lifting system and a hydraulic energy-storing well rig lifting system, wherein a high pressure energy-storing cylinder and a composite cylinder or cylinder group are used to carry out the lifting and lowering operations. During the lifting operation, a power machine under a substantially constant load continuously pumps oil to the energy-storing cylinder, and communication relationships of the energy-storing cylinder with various chambers of the composite cylinder or cylinder group is selected to provide an appropriate lifting force to lift the pipe string. Therefore, the installed capacity of the power machine can be reduced to 1/3-1/4 of that in a conventional lifting system.

Abstract: A well assembly including a drive string, a frame, a spindle mounted on the frame and means for rotating the spindle, is constructed to allow the upper end of the string to pass through the spindle. A nut with a non-circular downward protuberance is tightly, threadably engaged with the upper end of the drive stung. The spindle has a non-circular upward protuberance, and a tail bar snugly receives both protuberances. The tail bar supports the weight of the string and transmits rotary torque from the spindle to the string.

Abstract: A method of drilling a well by utilizing AE/MA measurement which has the steps of monitoring an AE wave emitted at the periphery of the well, and drilling the well without lost circulation by providing lost circulation preventing means in the well if the energy of the AE wave emitted at the periphery of the well increases. Thus, the method can confirm a lost circulation layer, i.e., the size, the place and the direction of the underground crack to further determine whether further drilling is necessary or not.

Abstract: A system and apparatus for the monitoring and control of torque applied during make-up and breakout of drill string components. The force applied by the cat head to the tong is measured by a hydraulic load cell and the horizontal and vertical angles between the direction of the cat head pull and the longitudinal axis of the tong are measured by angle measuring devices. Force and angle values are used for calculating the correct value of the applied make-up or breakout torque. Force angle, and torque values at shut down or breakout may be displayed, printed and plotted. During make-up, the cat head is automatically disengaged at an instant calculated to achieve a desired make-up torque at the completion of shut down.

Abstract: A method is described for testing the quality of cement slurry installed in a borehole to form a plug. The density of the cement, when relatively pure, is compared with the density after the slurry has been placed in situ and has been exposed to potential contamination. The presence of a contaminant is detected by a departure in the measured density from the value for when the cement is relatively pure.

Abstract: This invention concerns a drilling installation comprising a base which rests on the ground, a rig, a winch, items of equipment such as a drill-pipe storage coffer, and a working floor which is raised above the base, surrounding the rig.The installation is characterized by the fact that it comprises a carrying platform designed to take the rig, and which can be moved from a low position in contact with the base to a high position, and which is connected by a suitable lifting device to lifting uprights attached to the base. The platform also carries the working floor and items of equipment.The invention more specifically concerns drilling installations for oil-drilling operations.

Abstract: Improved means for suspending a drill string using a pair of hydraulically actuated belts is disclosed. A derrick or tower is mounted to a base to overlie a standard rotary drill table. The drill string (comprising a number of drill pipes and a drill collar) and a drill bit are suspended within the hole being drilled by a hook. A hook support rides between a pair of vertical guide rails and supports the hook between the rails via a pair of belts which engage the hook support. The belts extend from the hook support, to the stationary pulleys at the top of the tower, and down to an alternating series of stationary and movable pulleys which define a variable length path along which the belts are guided. When it is desired to raise or lower the hook, and therefore the drill string therefrom, the hydraulically actuated, movable pulleys are either raised or lowered to change the length of the variable length path and consequently the length of belt along the path.

Abstract: A sectionalized drilling mast, power arrangement and support means therefor includes base means to support the drilling mast means when reclined and when erect.

Abstract: A vertical drill rig is provided with a hydraulic crowd mechanism for crowding down a drive kelly having a rotating drilling tool supported from the lower end thereof.The crowd mechanism includes a drum having first and second cables wound in opposite senses thereon. The drum is rotated by a hydraulic motor driven by pressure regulated fluid supplied by an accumulator charged with fluid received from a hydraulic pump. The cables couple the drive kelly to the rig such that, when the hydraulic motor rotates the drum in a given direction, the first cable is paid out to lower the drive kelly while the second cable is simultaneously taken up to crowd down the drive kelly relative to the rig. Such a construction and arrangement provides a substantially constant crowd down force on the rotating drilling tool irrespective of its vertical rate of penetration into the earth.

Abstract: A system for erecting elevated floors where a first support floor with a drawworks thereon is connected to one end of a base structure by two pair of parallel spaced pivotable links and a second support floor is coupled to the opposite end of the base structure and by two pair of parallel spaced pivotable links. In accordance with the invention a strong back is erected about midway of the length of the base forming a rigid frame and supporting elevated sheaves at each side of the base structure. A pair of cables are adapted to pass over said sheaves, one on each side of said base structure and connect first to said first floor for erection and then to said second floor for erection.

Abstract: A hydraulic drilling machine for cutting into rock formations and the like. The machine has a rotating drill rod with a bit at one end and a rotary hydraulic drive motor at the other end. The drill rod is supported on a carriage adapted for linear travel to advance the rotating bit into the rock formation. The carriage is extended and retracted by means of a hydraulic feed motor. The rotary hydraulic motor and the hydraulic feed motor are connected in series in the hydraulic operating system so that when rotation resistance increases accompanied by a greater pressure drop across the rotary hydraulic motor, there is a consequent decrease in the force exerted by the hydraulic feed motor in order to avoid jamming of the drill bit.

Abstract: An improved portable drilling rig for drilling deep boreholes in the earth, in which the table or working floor of the rig, on which the rotary table and draw works are supported, is on a separate framework supported on and attached to a structural frame or base, for the drilling rig. The floor structure is broken down into a plurality of parts for ease in transportation, each of which have independent columns and cross-bracing. The central portion of the floor which supports the rotary table, and which must support the full weight of the drill pipe, has special heavy columns which are supported on a structural base in substantially the same position as the base connection of the mast, when in a raised position. Therefore, weight can be transferred from the rotary table to the crown block and vice versa, and the weight is still applied to the base frame in substantially the same position.

Abstract: An improved portable drilling rig for drilling deep boreholes in the earth, in which the mast is rotatable to a horizontal position at a small distance above the ground. The mast is of rectangular construction, with four corner columns, and four support legs. While the mast is supported in a vertical position with four shoes, it rotates about the two back supports.The mast is supported on two longitudinal stiffening members, of a U shape in cross-section. When the mast is lowered to a horizontal position, the front supporting columns drop below the top surface of the U shaped stiffening members and rest on the shallow bottom of the space between the two arms of the U. This puts the bottom of the mast within a foot or two above the ground, so that workmen may find it convenient to do work on the mast itself.

Abstract: An improved, multipurpose oil well rig employing hydraulically actuable components. Two, three, or four or more piston cylinder fluid motors are provided in the rig lift system, powered either by a power unit having high pressure, low volume pumping characteristics for heavy loads and low pressure, high volume pumping characteristics for light loads or by a power unit incorporating a stored energy accumulator. Novel dump/check safety and control valve means are provided in either power unit. All conventional oil well rig mechanisms are eliminated. Specifically, there are no drawworks, drums, gears, chains, sprockets, clutches, travelling blocks, mechanical brakes, transmissions or line spoolers.

Abstract: There is disclosed herein a mobile well drilling rig apparatus adapted for rapid assembly and disassembly thereof. The drilling rigs of the invention comprise a trailerable telescoping mast assembly and a separate sectionable substructure assembly therefor comprising a rig base, a working floor mounted in spaced relation above the base and a rig base extension extending outwardly from the drawworks side of the rig base. In a preferred embodiment, rail means defining a mastway are provided between the erected working floor and the rig base extension. The base mast section of the telescoping mast assembly is provided with cooperative mast roller means whereby the base of the mast structure is readily conveyed to the working floor and whereby the drawworks side mast legs are engaged into a trunnion arrangement therefor. Means are also provided for raising of the mast structure to the vertical from the drawworks side of the rig.