The present invention relates to a multi-functional drilling experiment platform, which consists of a gantry, a hydraulic cylinder, a power swivel and a platform base. The gantry mainly realizes the control of the drill string during the drilling-in process. In order to simulate the vertical well, the inclined well, and the horizontal well, the drilling machine needs to rotate between 0 and 90. The rotation of the gantry is realized by the extension and contraction of the hydraulic cylinder. The platform base is used to set up the gantry and the hydraulic cylinder, bearing the pulling, pressing and twisting loads of drilling experiments. Also, the platform base can move along the track to achieve different types of experiments. The multi-functional drilling experiment platform of the present invention realizes the load simulation experiment of the drilling machine at different angles using the gantry and the hydraulic cylinder.

In order to install a ground loop for a geothermal heating and/or cooling system in ground material, a drilling machine having a drill bit connected to an end of first tubing may be used to create an borehole in the ground material. After the borehole is created, grout may be pumped into the borehole through the first tubing as the first tubing is removed from the borehole. This allows the borehole to be grouted from the bottom towards the top. Thereafter, second tubing may be inserted into the grout in order to create the ground loop. This eliminates the need for a tremie pipe to insert the ground loop and pump grout into the borehole, while still allowing for the borehole to be grouted from the bottom towards the top to reduce the likelihood of voids.

An adjustable drilling rig is provided for drilling and installation of foundational micropile matrices in difficult to access locations. A platform and separately adjustable legs are provided to level the platform. Arms and a crossbar mount to the legs, and each includes a bushing slidably mounted and moveable there along. A mast is slidably attached to the crossbar bushing through a mounting plate. The mast carries a drill head to which a drill will be attached. Various adjusters are mounted to bushings, mounting plate and other components of the adjustable drilling rig and are independently and selectively activated to adjust the drill head translationally along the X-, Y- and Z-axes and rotationally about the X- and Y-axes to achieve five degrees of freedom in five planes. The entire adjustable drilling rig is provided in two frames for easy transport to remote work sites and may be assembled without complex tools.

A mobile well service unit has: a structural frame such as a chassis with ground engaging members; and a telescoping platform assembly mounted at a rear end of the structural frame, the telescoping platform assembly having a lower platform mounted to slide up and down relative to the structural frame, and an upper platform mounted to the lower platform to slide up and down relative to the lower platform. A mobile well service unit has: a structural frame with ground engaging members; a platform mounted at a rear end of the structural frame to slide up and down relative to the structural frame; and a set of telescoping and self-levelling stairs with an upper end pivotally anchored to the platform, and a lower end pivotally anchored to the structural frame.

A tunneling system includes a bolter miner, a bolter-integrated transportation machine, a transfer machine, a self-moving tail and a belt conveyor. The bolter miner includes a rack, a cutting device, and a bolt support device. The bolt support device includes a lifting assembly, a work platform, a first drilling frame assembly and a stabilizing assembly. The lifting assembly is arranged between the rack and the work platform. The first drilling frame assembly and the stabilizing assembly are arranged on the work platform. The bolter-integrated transportation machine is arranged behind the bolter miner and configured to transfer coal rock cut and conveyed by the bolter miner. One end of the transfer machine is connected with the bolter-integrated transportation machine, and the other end of the transfer machine is lapped with the self-moving tail. The belt conveyor is arranged behind the self-moving tail.

The present invention relates to a multi-functional drilling experiment platform, which consists of a gantry, a hydraulic cylinder, a power swivel and a platform base. The gantry mainly realizes the control of the drill string during the drilling-in process. In order to simulate the vertical well, the inclined well, and the horizontal well, the drilling machine needs to rotate between 0 and 90. The rotation of the gantry is realized by the extension and contraction of the hydraulic cylinder. The platform base is used to set up the gantry and the hydraulic cylinder, bearing the pulling, pressing and twisting loads of drilling experiments. Also, the platform base can move along the track to achieve different types of experiments. The multi-functional drilling experiment platform of the present invention realizes the load simulation experiment of the drilling machine at different angles using the gantry and the hydraulic cylinder.

A vehicle-attached lifting device and tool support is provided. The device comprises a dual-rail frame supported in an upright configuration by the vehicle tow hitch, wherein an internal subassembly support frame is positioned between the rails for the purposes of supporting different lifting and tool support subassemblies. Along the sides of the upright frame is a pair of ground support members that extend downward towards the ground to support the frame during operation, preventing the load from compressing the vehicle suspension or damaging the same. A winch controls the vertical positioning of the support frame within the dual-rail frame, which controls the position of a lifting or tool support subassembly. Many subassemblies are contemplated for use with the present invention for the purposes of assisting a user without requiring manual input therefrom. The device can also adjust with relation to the vehicle using different trailer hitch attachments.

A completion system and method adapted for use in wells having long lateral boreholes includes a mast assembly, a pipe handling mechanism, a pipe arm, a pipe tub, a pump/pit combination skid, a rig carrier, and a control system. The mast assembly can extend in a generally vertical direction, e.g., perpendicular to the rig carrier and/or the earth's surface, such that the rig can be placed directly adjacent to a wellbore, and the top drive or a similar drive system can be engaged with and move along the mast while remaining above the wellbore. The top drive can be engaged with a support fixture that resists torque and rotation during operation. The support fixture can in turn be engaged with the mast to transfer torque forces to the mast while being vertically movable along the mast to enable positioning of the top drive.

An adjustable drilling rig is provided for drilling and installation of foundational micropile matrices in difficult to access locations. A support frame of separately adjustable legs define a perimeter of the rig and drilling area. A translational frame of arms and a crossbar is selectively mounted to the support frame for easy transport and assembly at remote work sites. The crossbar is selectively slidable along the arms in a Y-axis direction. A crossbar bushing is selectively slidable along the crossbar in an X-axis direction. A mast is slidably attached to and movable with the crossbar. Various adjusters are included and are independently and selectively activated to move the crossbar, and therefore mast and attached drill head, translationally along the X- and Y-axes, optionally Z-axis, and rotationally about the X- and Y-axes to achieve five degrees of freedom in five planes for drilling at any angle within the drilling area.

Some embodiments of the present disclosure provides a dual-power hydraulic roof bolter, which includes an electric vehicle chassis, a machine base part, a drill boom mechanism, a bolting machine, a working platform set, an operating platform and a hydraulic system, and the hydraulic system is connected with the electric vehicle chassis, the drill boom mechanism, the bolting machine, the working platform set and the operating platform to control accordingly actions, the electric vehicle chassis is provided with the machine base part, the machine base part is provided with the drill boom mechanism, and the drill boom mechanism is provided with the bolting machine, the working platform set and the operating platform; the hydraulic system is independently driven by two sets of power sources respectively, and the two sets of power sources are an electric vehicle chassis transfer case driving hydraulic pump and a wind motor driving hydraulic pump respectively.