Abstract: A laser measuring system for continuous measurement of a plurality of connected tubulars being inserted into or removed from a wellbore. The laser measuring system can have a laser housing with one or more laser surface velocimeters. The laser housing with a laser arm can be connected to a support member and can communicate via a network to a computer processor and data storage for measuring pipe joint length in real time. A pressurized gas port can pressurize the laser housing above ambient pressure to keep a laser beam clear of particulate and well fluids or ambient pressure can be used with a continuous airflow device. The laser beam is used to detect and calculate length and quantity of tubulars moving past the laser beam transmitting the information to the computer processor in real time.

Abstract: A laser measuring system for continuous measurement of a plurality of connected tubulars being inserted into or removed from a wellbore. The laser measuring system can have a laser housing with one or more laser surface velocimeters. The laser housing with a laser arm can be connected to a support member and can communicate via a network to a computer processor and data storage for measuring pipe joint length in real time. A pressurized gas port can pressurize the laser housing above ambient pressure to keep a laser beam clear of particulate and well fluids or ambient pressure can be used with a continuous airflow device. The laser beam is used to detect and calculate length and quantity of tubulars moving past the laser beam transmitting the information to the computer processor in real time.

Abstract: A power connection device is provided for transmitting electric power from an external power source to a working machine). The working machine has an undercarriage and a superstructure, and the undercarriage and the superstructure are pivotable relative to each other about a substantially vertical pivot axis. The power connection device includes a first power conductor member which is adapted to be pivotally arranged relative to the undercarriage and the superstructure about the substantially vertical pivot axis.

Abstract: A power connection device is provided for transmitting electric power from an external power source to a working machine). The working machine has an undercarriage and a superstructure, and the undercarriage and the superstructure are pivotable relative to each other about a substantially vertical pivot axis. The power connection device includes a first power conductor member which is adapted to be pivotally arranged relative to the undercarriage and the superstructure about the substantially vertical pivot axis.

Abstract: A laser measuring system for continuous measurement of at least one join of pipe being inserted into or removed from a wellbore. The laser measuring system can have a laser housing with a laser surface velocimeter. The laser housing with a laser arm can be connected to a support member with an upper mounting member and an upper rubber pipe wiper and a lower plate with a lower rubber pipe wiper. The laser surface velocimeter can communicate via a network to a computer processor and data storage for measuring pipe joint length in real time. A pressurized gas port can pressurize the laser housing above ambient pressure to keep a laser beam clear of particulate and well fluids. The laser beam used to detect and calculate length and quantity of joints of pipe moving past the laser beam transmitting the information to the computer processor real time.

Abstract: A method is provided for controlling a working machine that includes a front section having a frame and a pair of wheels arranged on a geometrical front wheel axis, and a rear section having a frame and a pair of wheels arranged on a first geometrical rear wheel axis and a pair of wheels arranged on a second geometrical rear wheel axis arranged behind the first rear wheel axis. The front section and the rear section are pivotally connected to each other for pivoting about a substantially vertical pivot axis. In a first control mode the wheels of the second geometrical rear wheel axis are steered to substantially follow the same tracks as the wheels of the geometrical front wheel axis when driving the working machine during cornering, and in a second control mode steering the wheels of the second geometrical rear wheel axis follow tracks which are different from the tracks of the wheels of the geometrical front wheel axis.

Abstract: An articulated vehicle with a controllable wheel route includes a first vehicle body, a first pair of wheels, which are individually suspended on both sides of the first vehicle body, and can travel on the ground, a second vehicle body hingedly connected to the first vehicle body, a second pair of wheels, which are individually suspended on both sides of the second vehicle body, and can travel on the ground, a regulator, which regulates a relative steering angle between the first vehicle body and the second vehicle body, a mode selector, which is configured to select a first mode and a second mode, and a controller, which receives the first mode signal or the second mode signal from the mode selector and controls the regulator according to the received signal.

Abstract: A vehicle with a controllable wheel route includes a vehicle body, a first pair of wheels, which are individually suspended on both sides of the vehicle body to roll on the ground and can rotate around the vertical axis, a second pair of wheels, which are individually suspended on both sides of the vehicle body to roll on the ground, can rotate around the vertical axis, and are placed in the back of the first wheels, a regulator, which regulates each steering angle on the vertical axis of the first and second wheels, a mode selector, which is configured to select a first mode and a second mode, and a controller, which receives the first mode signal or the second mode signal from the mode selector and controls the regulator according to the received signal. The second wheel route is regulated to be identical to the first wheel route in the first mode, and the second wheel route is regulated to be different from the first wheel route in the second mode.

Abstract: A method is provided for controlling a prime mover adapted to drive at least one ground engaging element of a working machine. The method includes receiving an operator control input indicative of the control of the prime mover and determining at least one operation signal in response to the operator control input, which operation signal is sent for controlling the prime mover. The method also includes receiving a operating state input indicative of an operating state of the machine and selecting a control mode from at least one speed control mode in which the determined operational signal comprises a desired speed of the prime mover and at least one torque control mode in which the determined operational signal comprises a desired torque of the prime mover in response to the operating state input.

Abstract: A method is provided for controlling a working machine that includes a front section having a frame and a pair of wheels arranged on a geometrical front wheel axis, and a rear section having a frame and a pair of wheels arranged on a first geometrical rear wheel axis and a pair of wheels arranged on a second geometrical rear wheel axis arranged behind the first rear wheel axis. The front section and the rear section are pivotally connected to each other for pivoting about a substantially vertical pivot axis. In a first control mode the wheels of the second geometrical rear wheel axis are steered to substantially follow the same tracks as the wheels of the geometrical front wheel axis when driving the working machine during cornering, and in a second control mode steering the wheels of the second geometrical rear wheel axis follow tracks which are different from the tracks of the wheels of the geometrical front wheel axis.

Abstract: An articulated vehicle with a controllable wheel route includes a first vehicle body, a first pair of wheels, which are individually suspended on both sides of the first vehicle body, and can travel on the ground, a second vehicle body hingedly connected to the first vehicle body, a second pair of wheels, which are individually suspended on both sides of the second vehicle body, and can travel on the ground, a regulator, which regulates a relative steering angle between the first vehicle body and the second vehicle body, a mode selector, which is configured to select a first mode and a second mode, and a controller, which receives the first mode signal or the second mode signal from the mode selector and controls the regulator according to the received signal.

Abstract: A vehicle with a controllable wheel route includes a vehicle body, a first pair of wheels, which are individually suspended on both sides of the vehicle body to roll on the ground and can rotate around the vertical axis, a second pair of wheels, which are individually suspended on both sides of the vehicle body to roll on the ground, can rotate around the vertical axis, and are placed in the back of the first wheels, a regulator, which regulates each steering angle on the vertical axis of the first and second wheels, a mode selector, which is configured to select a first mode and a second mode, and a controller, which receives the first mode signal or the second mode signal from the mode selector and controls the regulator according to the received signal. The second wheel route is regulated to be identical to the first wheel route in the first mode, and the second wheel route is regulated to be different from the first wheel route in the second mode.

Abstract: A method is provided for controlling a prime mover adapted to drive at least one ground engaging element of a working machine. The method includes receiving an operator control input indicative of the control of the prime mover and determining at least one operation signal in response to the operator control input, which operation signal is sent for controlling the prime mover. The method also includes receiving a operating state input indicative of an operating state of the machine and selecting a control mode from at least one speed control mode in which the determined operational signal comprises a desired speed of the prime mover and at least one torque control mode in which the determined operational signal comprises a desired torque of the prime mover in response to the operating state input.

Abstract: A system and method for selectively stimulating a plurality of producing zones of a wellbore in oil and gas wells, the system being cemented within the wellbore. The system includes a plurality of modules connected in a string wherein the modules can be selectively actuated to stimulate producing zones adjacent the modules. Each module includes a sleeve shiftable between a closed position and a treating position where a plurality of radial passageways are exposed to the central passageway of the assembly. The system includes a wiper plug that is adapted to pass through ball seats of various sizes in the plurality of modules and an acid solution pumped into the string to break down the cement at the producing zones. The system may include at least one natural rubber wiper ball to remove residual cement from the string.

Abstract: A system and method for selectively stimulating a plurality of producing zones of a wellbore in oil and gas wells, the system being cemented within the wellbore. The system includes a plurality of modules connected in a string wherein the modules can be selectively actuated to stimulate producing zones adjacent the modules. Each module includes a sleeve shiftable between a closed position and a treating position where a plurality of radial passageways are exposed to the central passageway of the assembly. The system includes a wiper plug that is adapted to pass through ball seats of various sizes in the plurality of modules and an acid solution pumped into the string to break down the cement at the producing zones. The system may include at least one natural rubber wiper ball to remove residual cement from the string.