CN-121993142-A - Low-pressure drilling fluid full-flow visual centralized control system and control method

CN121993142ACN 121993142 ACN121993142 ACN 121993142ACN-121993142-A

Abstract

The invention discloses a full-flow visual centralized control system and a control method for low-pressure drilling fluid, comprising a centralized control unit which is electrically connected with a drilling machine VFD room and a drilling machine instrument and comprises a touch type integrated machine, wherein the centralized control unit is electrically connected with various tanks and a prying control box, the vibrating screen tank control box, the suction tank control box and the mixing tank control box are all electrically connected with an electric control box of equipment arranged on the tank and electric butterfly valves around the electric control box, and the mixing sled control box is electrically connected with the electric butterfly valves around the sled. Before the touch type integrated machine in the centralized control room, an operator remotely performs starting and stopping of equipment or switching operation of the electric butterfly valve through the electric cabinet, the touch type integrated machine displays the liquid level of the low-pressure drilling fluid tank and the running states of the equipment and the electric butterfly valve, and the operator does not need to reach the installation positions of each equipment and each valve to operate, so that the working efficiency of the operator is improved, the labor intensity of the operator is reduced, and the working environment of the operator is improved.

Inventors

LUO XIAOCHUN
ZHANG HUSHAN
XU XIAOPENG
XING PENG
SUO WENTAO
LI WEI
YANG BAIXUE
ZHANG WENYING
CHEN YUANXIN

Assignees

宝鸡石油机械有限责任公司
中国石油天然气集团有限公司

Dates

Publication Date: 20260508
Application Date: 20241108

Claims (9)

1. The low-pressure drilling fluid full-flow visual centralized control system is characterized by comprising a centralized control unit which is electrically connected with a drilling machine VFD room and a drilling machine instrument and comprises a touch type integrated machine, wherein a vibrating screen tank control box, a suction tank control box, a mixing tank control box and a mixing sled control box are electrically connected to the centralized control unit, the vibrating screen tank control box is electrically connected with an electric control box of a vibrating screen tank, a metering pump, a deaerator and a stirrer and an electric butterfly valve around the vibrating screen tank, the suction tank control box is electrically connected with the electric control box of the stirrer installed in the suction tank and the electric butterfly valve around the suction tank, the mixing tank control box is electrically connected with the electric control box of the stirrer installed in the mixing tank and the electric butterfly valve around the mixing tank, and the mixing sled control box is electrically connected with the electric butterfly valve installed around the mixing sled.
2. The full-flow visual centralized control system of low-pressure drilling fluid according to claim 1, wherein the centralized control unit comprises a CPU host, the CPU host is connected with a data exchanger through a communication cable, the data exchanger is connected with a vibrating screen tank control box, a suction tank control box, a mixing sled control box, a drilling machine VFD room and a drilling machine instrument through a Profinet wire, the drilling machine VFD room is connected with two mixing pumps SB56-1 and SB56-2 with 37kW power, and the drilling machine instrument is connected with a liquid level meter in a low-pressure drilling fluid tank.
3. The visual centralized control system of the whole flow path of the low-pressure drilling fluid according to claim 2, wherein the centralized control unit is positioned in a centralized control room, and the electric control boxes of the vibrating screen, the metering pump, the deaerator and the stirrer are arranged in the vibrating screen tank, the electric control box of the stirrer is arranged in the suction tank, and the electric control boxes of the stirrer are all provided with remote control interfaces.
4. The full-flow visual centralized control system of the low-pressure drilling fluid according to claim 2, wherein the CPU host is connected with a touch type integrated machine through a communication cable, and the touch type integrated machine is connected with a visual signal acquisition device arranged above the vibrating screen tank and the mixing sled sequentially through a video monitoring host and a visual signal transfer device.
5. The full-flow visual centralized control system for the low-pressure drilling fluid according to claim 1, wherein the vibrating screen tank control box is connected with an electric control box of a vibrating screen SS-1, a vibrating screen SS-2, a metering pump SB23, a deaerator Deg and a stirrer AG15-1 which are arranged on the periphery of the vibrating screen tank and an executing mechanism of 17 electric butterfly valves which are distributed on the periphery of the vibrating screen tank through YCW control cables.
6. The full-flow visual centralized control system of low-pressure drilling fluid according to claim 1, wherein the suction tank control box is connected with an electric control box of a stirrer AG15-2 and a stirrer AG15-3 which are arranged on the suction tank and an actuating mechanism of 14 electric butterfly valves distributed around the suction tank through YCW control cables.
7. The full-flow visual centralized control system of low-pressure drilling fluid according to claim 1, wherein the mixing tank control box is connected with an electric control box of a stirrer AG15-4 and a stirrer AG15-5 which are arranged on the mixing tank and an actuating mechanism of 12 electric butterfly valves distributed around the mixing tank through YCW control cables.
8. The full-flow visual centralized control system of low-pressure drilling fluid according to claim 1, wherein the mixing sled control box is connected with the execution mechanisms of 12 electric butterfly valves distributed around the mixing sled through YCW control cables.
9. The control method of the full-flow visual centralized control system of the low-pressure drilling fluid according to claim 1, wherein an operator remotely performs the start-stop or the switching operation of an electric butterfly valve installed on a vibrating screen tank, a suction tank, a mixing tank and a mixing sled device before a touch type integrated machine in a centralized control room, and the touch type integrated machine displays the liquid level of the low-pressure drilling fluid tank and the operation states of the vibrating screen tank, the suction tank, the mixing tank and the mixing sled device and the electric butterfly valve.

Description

Low-pressure drilling fluid full-flow visual centralized control system and control method Technical Field The invention belongs to the technical field of petroleum drilling equipment, and particularly relates to a full-flow visual centralized control system for low-pressure drilling fluid. The invention also relates to a control method of the low-pressure drilling fluid full-flow visual centralized control system. Background The low-pressure drilling fluid system matched with the petroleum drilling machine in China at present generally comprises a vibrating screen tank, a suction tank, a mixing tank, a reserve tank, a mixing sled, solid control equipment, pipelines, valves and the like, wherein the equipment comprises a vibrating screen, a deaerator, a cleaner, a centrifugal machine, a stirrer, a sand pump and the like, and the equipment and the valves are arranged on the tanks and the sleds in a dispersing way. When a specific process is completed, operators are required to reach the installation positions of all equipment and valves, and local manual start, stop or open and close operations are performed, so that time and labor are wasted, the working efficiency is low, and the labor intensity is high. Disclosure of Invention The invention aims to provide a full-flow visual centralized control system for low-pressure drilling fluid, which solves the problem that the existing manual local operation is time-consuming and labor-consuming. The invention further aims to provide a control method of the low-pressure drilling fluid full-flow visual centralized control system. The first technical scheme adopted by the invention is that the full-flow visual centralized control system for the low-pressure drilling fluid comprises a centralized control unit which is electrically connected with a drilling machine VFD room and a drilling machine instrument and comprises a touch type integrated machine, wherein a vibrating screen tank control box, a suction tank control box, a mixing tank control box and a mixing sled control box are electrically connected to the centralized control unit, the vibrating screen tank control box is electrically connected with a vibrating screen installed on the vibrating screen tank, a metering pump, an electric cabinet of a deaerator and a stirrer and an electric butterfly valve around the vibrating screen tank, the suction tank control box is electrically connected with the electric cabinet of the stirrer installed on the suction tank and the electric butterfly valve around the suction tank, the mixing tank control box is electrically connected with the electric cabinet of the stirrer installed on the mixing tank and the electric butterfly valve around the mixing tank, and the mixing sled control box is electrically connected with the electric butterfly valve installed around the mixing sled. The first technical solution of the invention is also characterized in that, The centralized control unit comprises a CPU host, the CPU host is connected with a data exchanger through a communication cable, the data exchanger is connected with a vibrating screen tank control box, a suction tank control box, a mixing sled control box, a drilling machine VFD room and a drilling machine instrument through a Profinet wire, the drilling machine VFD room is connected with two mixing pumps SB56-1 and SB56-2 with 37kW power installed on the mixing sled, and the drilling machine instrument is connected with a liquid level meter in a low-pressure drilling fluid tank. The centralized control unit is positioned in the centralized control room, and the electric control boxes of the vibrating screen, the metering pump, the deaerator and the stirrer are arranged in the vibrating screen tank, the electric control box of the stirrer is arranged in the suction tank, and the electric control boxes of the stirrer are all provided with remote control interfaces. The CPU host is connected with the touch type all-in-one machine through a communication cable, and the touch type all-in-one machine is connected with a visual signal acquisition device arranged above the vibrating screen tank and the mixing sled sequentially through the video monitoring host and the visual signal transfer device. The vibrating screen tank control box is connected with an electric control box of the stirrer AG15-1 and an actuating mechanism of 17 electric butterfly valves distributed around the vibrating screen tank through YCW control cables, wherein the vibrating screen SS-1, the vibrating screen SS-2, the metering pump SB23, the deaerator Deg and the vibrating screen tank control box are arranged on the vibrating screen tank. The suction tank control box is connected with an electric control box of a stirrer AG15-2 and a stirrer AG15-3 which are arranged on the suction tank and an actuating mechanism of 14 electric butterfly valves distributed around the suction tank through YCW control cables. The mixing tank control box is connected with