An electric driven hydraulic fracking system is disclosed. A pump configuration that includes the single VFD, the single shaft electric motor, and the single hydraulic pump that is mounted on the single pump trailer. A pump configuration includes a single VFD configuration, the single shaft electric motor, and the single shaft hydraulic pump mounted on the single pump trailer. The single VFD configuration converts the electric power at the power generation voltage level distributed from the power distribution trailer to a VFD voltage level and drives the single shaft electric motor to control the operation of the single shaft electric motor and the single hydraulic pump. The VFD voltage level is a voltage level that is required to drive the single shaft electric motor. The VFD configuration also controls operation of the auxiliary systems based on the electric power at the auxiliary voltage level.

System and methods for performing look-ahead and look-around (LALA) inversion are provided. Measurements of formation properties accumulated by a downhole LALA tool are obtained during different stages of drilling a wellbore through layers of an underground formation. A distribution of formation properties measured for the layers behind a current layer is determined. A formation model for look-ahead inversion is defined based on the determined distribution of formation properties behind the current layer. Measurements of the current layer's formation properties collected by the downhole LALA tool are obtained. A distribution of formation properties for one or more layers ahead of the current layer is estimated based on the formation model and the measurements of formation properties obtained for the current layer. The estimated distribution includes a gradient transition of formation properties between the current layer and the one or more layers ahead of the current layer.

An automated rig apparatus for drilling or servicing a well is provided. The apparatus can include a motor vehicle having a frame, and a hinged derrick mast pivotally attached to the frame. The apparatus can further include a rack disposed in the mast and a carriage assembly with pinion motors configured to travel up and down the rack when the mast is raised to a vertical position. A tool carrier configured to receive a top drive unit or a power swivel unit can be attached to the carriage assembly. The apparatus can further include a movable platform and an operators cab configured to be moved to a desired position relative to the derrick mast when the mast is raised to a vertical position. The apparatus can further include a hydraulic drive assembly to operate the apparatus, and a mud pump and manifold for pumping drilling mud.

A hydraulic tool for the installation of fencing T-posts into the ground without bending the T-post or causing damage or deformity to the top of the T-post, installs to the three point hitch of a tractor with hydraulic connections to the tractor hydraulic system, securing the post along its vertical length prior to insertion into the ground, the tool having an upper stationary bracket holding an upper section of the T-post within a T-post slot and a lower sliding ram bracket securing to a lower section of the post, the lower sliding ram bracket forcing the T-post into the ground by use of a hydraulic ram at a chosen depth.

A boom for supporting a drilling and bolting tool includes a first portion including a first end and a second end, a longitudinal axis extending between the first end and the second end; a second portion including a proximal end and a distal end, the proximal end supported for translational movement relative to the first portion in a direction parallel to the longitudinal axis, the distal end configured to support the drilling and bolting tool; an actuator for moving the second portion relative to the first portion parallel to the longitudinal axis; and a fluid passage for conveying pressurized fluid between the first end of the first portion and the drilling and bolting tool adjacent the distal end of the second portion, the fluid passage positioned within the first portion and the second portion.

An electric driven hydraulic fracking system is disclosed. A pump configuration that includes the single VFD, the single shaft electric motor, and the single hydraulic pump that is mounted on the single pump trailer. A pump configuration includes a single VFD configuration, the single shaft electric motor, and the single shaft hydraulic pump mounted on the single pump trailer. The single VFD configuration converts the electric power at the power generation voltage level distributed from the power distribution trailer to a VFD voltage level and drives the single shaft electric motor to control the operation of the single shaft electric motor and the single hydraulic pump. The VFD voltage level is a voltage level that is required to drive the single shaft electric motor. The VFD configuration also controls operation of the auxiliary systems based on the electric power at the auxiliary voltage level.

A method for preparing a charging plan for rock cavern excavation, in which plan drill hole locations for a round to be drilled in a tunnel face are determined in a predetermined coordinate system by using a drilling plan created by means of a computer-assisted design program. The method determines pull-out of a round on the basis of the locations of the hole ends and the topography of the rock remaining after a round blast, and designs or modifies a charging plan for a subsequent round on the basis of the thus determined pull-out.

A drilling rig mobility system moves a drilling rig or similar structure in an oilfield or similar environment and includes independently controllable positioning shoes attaching to the drilling rig and controllable through separate and coordinated position control commands. Each positioning shoe may be individually addressed to reposition the drilling rig. Each positioning shoe includes a hydraulic actuator and wireless control circuitry. The hydraulic actuator provides vertical and horizontal force in response to wireless control signals for wireless position and control data and instructions with a remote wireless communications device. A cylinder stomper vertically elevates the hydraulic actuator and receives and transfers the vertical force. A foot assembly transfers the horizontal force from the hydraulic actuator. A positioning shoe cylinder stomper and positioning shoe traverse cylinder provide infinitely variable position control. Rotational positioning may be manually or automatically achieved.

An electric driven hydraulic fracking system is disclosed. A pump configuration includes the single VFD, the single shaft electric motor, and the single hydraulic pump mounted on the single pump trailer. A controller associated with the single VFD and is mounted on the single pump trailer. The controller monitors operation parameters associated with an operation of the electric driven hydraulic fracking system as each component of the electric driven hydraulic fracking system operates to determine whether the operation parameters deviate beyond a corresponding operation parameter threshold. Each of the operation parameters provides an indicator as to an operation status of a corresponding component of the electric driven hydraulic fracking system. The controller initiates corrected actions when each operation parameter deviates beyond the corresponding operation threshold. Initiating the corrected actions when each operation parameter deviates beyond the corresponding operation threshold maintains the operation of the electric driven hydraulic fracking system.

An apparatus and method for planning a drilling sequence. The solution relates also to a rock drilling rig and to a computer program product. The apparatus searches several possible drilling scenarios for drilling a given drilling pattern. Different actions required by the scenarios have given costs and the executed algorithm calculates total costs of found scenarios. Scenarios with the lowest costs are selected.