Electric control safety system for slurry pump

A safety system and mud pump technology, applied in the field of mud pump electric control safety system, can solve problems such as soaring pump pressure and safety accidents, and achieve the effects of accurate pressure detection, guaranteeing production safety, and easy implementation.

Active Publication Date: 2013-09-11
PUYANG BAIFU REIDE PETROLEUM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mechanical safety valve can only tell the driller to stop the pump after it is opened. It is a reverse order to release the pump pressure first and then stop the pump. Once the safety valve fails to open in time, the mud pump will continue to run, and the pump pressure will rapidly rise beyond the limit value and die. A security incident occurred

Method used

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  • Electric control safety system for slurry pump
  • Electric control safety system for slurry pump
  • Electric control safety system for slurry pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment one: see figure 1 , figure 2. The mud pump electronic control safety system of the present invention includes a pressure sensor 14, an embedded integrated touch screen industrial computer 16 and a program controller (PLC) 15, a normally closed pneumatic shut-off valve 12, and a pressure sensor 14 installed in the high-pressure mud of the mud pump 1. On the outlet pipeline 3, the output signal of the pressure sensor 14 is connected to the input signal acquisition port of the PLC, and the PLC is connected to the embedded integrated touch screen industrial computer 16 for communication, and the PLC is equipped with an output port to control the connection (through the electromagnetic head) normally closed pneumatic shut-off valve 12 The electromagnetic reversing valve 13, the air source inlet of the electromagnetic reversing valve 13 is connected to the control air source 10, and the two outlets of the electromagnetic reversing valve 13 are respectively connec...

Embodiment 2

[0026] Embodiment two: see figure 1 or figure 2 , the electric control safety system of the mud pump in this embodiment is different from the first embodiment in that the electromagnetic reversing valve 13 adopts a two-position five-way electromagnetic valve, the inlet P of the electromagnetic valve is connected to the control air source, and one of its normally open outlets A, A normally closed outlet B is respectively connected to the working cylinders at both ends of the normally closed pneumatic valve 12, the normally open outlet A is connected to the closing interface of the normally closed pneumatic shut-off valve 12, and the normally closed outlet B is connected to the normally closed pneumatic valve 12. The start interface connection of shut-off valve 12.

Embodiment 3

[0027] Embodiment three: see figure 1 or figure 2 , the electric control safety system of the mud pump in this embodiment is different from the second embodiment in that an air source pipe is provided at the normally open outlet A of the electromagnetic reversing valve to connect with the manual switch control valve 11 that is connected to the mud pump; The inlet of the manual switch control valve 11 is connected to the normally open outlet A of the electromagnetic reversing valve, and the outlet of the manual switch control valve 11 is connected to the normally closed control air relay 8 to control the gas source inlet. That is, the normally open outlet A of the electromagnetic reversing valve 13 is divided into two paths, one path is connected to the inlet gas path of the manual switch control valve 11 that is connected to the mud pump 1, and the other path is connected to the closing interface of the normally closed pneumatic shut-off valve 12 .

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Abstract

The invention relates to a safety device for monitoring mud pump pressure during oil drilling. An electric control safety system for a mud pump, including a pressure sensor, an embedded integrated touch screen industrial computer and a PLC, a normally closed pneumatic stop valve, the pressure sensor is installed on the high-pressure mud outlet pipeline of the mud pump, and the output signal of the pressure sensor is connected to the PLC. Input signal acquisition port, PLC and embedded integrated touch screen industrial computer communication connection, PLC has an output port to control the electromagnetic reversing valve connected to the normally closed pneumatic globe valve, and the two outlets of the electromagnetic reversing valve are respectively connected to the normal through the pipeline. Both ends of the closed pneumatic shut-off valve work on the cylinder, and the normally closed pneumatic shut-off valve is installed on the return or bypass pipeline connected to the high-pressure mud outlet pipeline of the mud pump. The invention can accurately and reliably monitor the pump pressure of the mud pump on-line, and when the pump pressure of the mud pump reaches the limit value, it will give an alarm in time and stop the pump to release the pressure, which can effectively prevent safety accidents, and the action is timely and reliable, and is easy to implement.

Description

technical field [0001] The invention relates to a safety device for monitoring mud pump pressure during oil drilling. In particular, it relates to a mud pump electric control safety system. Background technique [0002] In the process of oil exploration and development and drilling, timely, accurate, stable and reliable monitoring of the pressure status of the mud pump during operation, when the pump pressure of the mud pump is abnormal due to blockage of the drill bit water hole or operation error, when the pump pressure of the mud pump reaches the limit value It is the premise to prevent safety accidents to be able to alarm at the first time and stop the operation of the mud pump (stop pump to relieve pressure). [0003] At present, the commonly used safety valves for mud pumps at home and abroad are mechanical safety valves, which mainly include spring type and shear type. The valve is opened to discharge the mud in the pump body to release the pump pressure and prevent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B49/06F04B49/10
Inventor 赵刚何飞曹民于春何吉元
Owner PUYANG BAIFU REIDE PETROLEUM SCI & TECH CO LTD
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