A numerical value controller for a machine tool includes a storage unit storing a machining program for drilling a hole in a workpiece in accordance with relative movement between a tool and workpiece in a depth direction, and a control unit controlling the relative movement between the tool and workpiece based on the machining program and that moves the tool relative to the workpiece in the depth direction from a return point to a hole bottom point. The return point is a position retracted in the depth direction from a workpiece surface where the tool starts to perform drilling. The machining program includes a command for a workpiece height point as a position of the workpiece surface. The control unit moves the tool relative to the workpiece in the depth direction at a relative rate higher than a cutting feed rate from the return point to the height point.

Disclosed is an automatic hole-processing method with self-adapting adjustment of processing parameters, including the following steps: performing tool feeding, detecting whether the rotate speed changes or not, if changes, judging the type of the processing material according to the new rotate speed after stabilization (if not, the tool feeding is continued); feeding the tool according to the processing parameters suitable for the material, detecting whether the rotate speed changes or not, if changes, judging whether the hole processing has been completed or not according to the new rotate speed after stabilization (if not, the tool feeding is continued), if completed, retracting the tool with the set parameters (if not, judging the type of the processing material according to the new rotate speed after stabilization, and repeating the above steps), completing the hole processing. During the hole processing in the present disclosure, there is no need to know the type of workpiece material of each processing hole in advance and to set processing parameters for each material respectively; there is no need for axial tool setting, processing parameters can be changed automatically after the tool contacts the workpiece; there is no need to know the total thickness of each processing hole material in advance and to set the feed stokes respectively, after cutting through the workpiece, the tool automatically identifies and begins to retract.

A closed loop pneumatic pumping system is provided. The system uses a gas compressor and a high pressure gas tank to exert pneumatic pressure against a reciprocating piston over a wellbore. The piston is connected to a rod string and downhole pump for pumping formation fluids from a wellbore. The system includes an electronic controller that controls movement, including pump speed of the piston as it cycles between upstrokes and downstrokes within a cylinder over the wellbore. In one aspect, speed is controlled by adjusting a speed of the compressor. In another aspect, speed is controlled by adjusting the position of an upstroke control valve and a downstroke control valve. In one aspect, the pump stroke controller is configured to adjust a speed of the upstroke and a speed of the downstroke in response to signals indicative of pump fillage. A method for optimizing pneumatic pumping speed at a wellbore is also provided herein.

Disclosed is an automatic hole-processing method with self-adapting adjustment of processing parameters, including the following steps: performing tool feeding, detecting whether the rotate speed changes or not, if changes, judging the type of the processing material according to the new rotate speed after stabilization (if not, the tool feeding is continued); feeding the tool according to the processing parameters suitable for the material, detecting whether the rotate speed changes or not, if changes, judging whether the hole processing has been completed or not according to the new rotate speed after stabilization (if not, the tool feeding is continued), if completed, retracting the tool with the set parameters (if not, judging the type of the processing material according to the new rotate speed after stabilization, and repeating the above steps), completing the hole processing. During the hole processing in the present disclosure, there is no need to know the type of workpiece material of each processing hole in advance and to set processing parameters for each material respectively; there is no need for axial tool setting, processing parameters can be changed automatically after the tool contacts the workpiece; there is no need to know the total thickness of each processing hole material in advance and to set the feed stokes respectively, after cutting through the workpiece, the tool automatically identifies and begins to retract.

Systems and methods for drilling a horizontal well. The method compromises estimating the well's position in the target formation using data acquired during the drilling process, data from the nearby wells as well as other relevant data, including, without limitation, seismic, geomodels and structural maps. The method may additionally involve correcting a wellbore trajectory to ensure that the trajectory stays within the target formation.

A method can include receiving domain specific language that expresses a model of a field equipment system that includes data acquisition equipment; compiling the domain specific language to executable code; controlling at least a portion of the field equipment system by executing the executable code; and receiving data acquired by the data acquisition equipment responsive to executing at least a portion of the executable code.

A closed loop pneumatic pumping system is provided. The system uses a gas compressor and a high pressure gas tank to exert pneumatic pressure against a reciprocating piston over a wellbore. The piston is connected to a rod string and downhole pump for pumping formation fluids from a wellbore. The system includes an electronic controller that controls movement, including pump speed of the piston as it cycles between upstrokes and downstrokes within a cylinder over the wellbore. In one aspect, speed is controlled by adjusting a speed of the compressor. In another aspect, speed is controlled by adjusting the position of an upstroke control valve and a downstroke control valve. In one aspect, the pump stroke controller is configured to adjust a speed of the upstroke and a speed of the downstroke in response to signals indicative of pump fillage. A method for optimizing pneumatic pumping speed at a wellbore is also provided herein.

A numerical value controller for a machine tool includes a storage unit storing a machining program for drilling a hole in a workpiece in accordance with relative movement between a tool and workpiece in a depth direction, and a control unit controlling the relative movement between the tool and workpiece based on the machining program and that moves the tool relative to the workpiece in the depth direction from a return point to a hole bottom point. The return point is a position retracted in the depth direction from a workpiece surface where the tool starts to perform drilling. The machining program includes a command for a workpiece height point as a position of the workpiece surface. The control unit moves the tool relative to the workpiece in the depth direction at a relative rate higher than a cutting feed rate from the return point to the height point.