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Electrical transmission control system and method for well logging winch

A technology of control system and electric transmission, which is applied in surveying, earthwork drilling and production, wellbore/well components, etc., to achieve high efficiency, wide speed range and hard characteristics

Active Publication Date: 2013-05-08
廊坊新赛浦特种装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention aims to solve the following technical problems caused by the closed hydraulic transmission system control of the logging winch in the prior art;

Method used

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  • Electrical transmission control system and method for well logging winch
  • Electrical transmission control system and method for well logging winch
  • Electrical transmission control system and method for well logging winch

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Embodiment Construction

[0062] Such as figure 1 As shown, the present invention provides a kind of logging drawworks electrical transmission control system, it comprises:

[0063] Manual control unit 6: used for manual input of control signals;

[0064] Instruction processing unit 11: for receiving the control signal input by the manual control unit 6 and outputting the control instruction to the instruction execution unit 17;

[0065] The instruction execution unit 17 includes:

[0066] Information display module 12: display the operating status of engine 2 and winch 9;

[0067] Engine control module 1: receiving the control command from the command processing unit 11, and controlling the starting, stopping and rotating speed of the engine 2;

[0068] Frequency conversion module 5: receiving the control command of the command processing unit 11, changing the output current and frequency of the generator 4, thereby changing the output torque and speed of the motor 7, and then changing the output t...

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PUM

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Abstract

The invention discloses an electrical transmission control system and method for a well logging winch. The system comprises a manual control unit, an instruction processing unit, an instruction execution unit and an information acquisition unit, wherein the manual control unit is used for manually inputting control signals; the instruction processing unit is used for receiving the control signalsinputted by the manual control unit and outputting control instructions to the instruction execution unit; the instruction execution unit comprises an information display module, an engine control module, and a frequency conversion module; the information acquisition unit is used for acquiring the execution state information of the winch and the instruction execution unit; and the instruction processing unit generates control instructions according to the control signals inputted by the manual control unit and the execution state information of the winch and the instruction execution unit acquired by the information acquisition unit. By using the system and method disclosed by the invention, a closed-loop control can be realized by adopting a frequency variation speed control technology and collective control devices, so that a reliable, accurate control can be provided for the constant-torque and low-speed logging operation of the well logging winch.

Description

technical field [0001] The invention relates to an electric drive transmission system, in particular to an electric drive transmission control system of a well logging drawworks. Background technique [0002] At present, the well-logging drawworks used in known oilfields adopt a closed hydraulic transmission system, which is mainly composed of a two-way plunger variable hydraulic oil pump, a variable (or quantitative) plunger hydraulic motor and a corresponding two-way electric proportional control handle. Change the displacement of the oil pump (or motor) to change the rotation speed of the motor, and realize the forward and reverse rotation of the motor by changing the control direction of the electric proportional control handle, so as to realize the forward rotation, reverse rotation and fast and slow speed of the logging winch. control. [0003] However, the pressure and flow of the hydraulic system fluctuate greatly, coupled with the leakage of the hydraulic system, i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66D1/46B66D1/54E21B47/00
Inventor 许江华翟国忠邱建华郭运马荣斌董义窦嘉余安生
Owner 廊坊新赛浦特种装备有限公司
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