CN201396146Y

CN201396146Y - Mud monitoring system

Info

Publication number: CN201396146Y
Application number: CN2009200897454U
Authority: CN
Inventors: 王常钦
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-22
Filing date: 2009-04-22
Publication date: 2010-02-03
Anticipated expiration: 2019-04-22

Abstract

The utility model relates to a monitoring system for detecting liquid level, and is particularly suitable for detecting mud volume change. A mud monitoring system comprises a touch display screen, a programmable controller (PLC), a circuit breaker, a rectifier, an intermediate relay, a liquid level sensor, an alarm lamp and a switch, wherein a 220V/AC power supply is connected with the circuit breaker through the switch; the output end of the circuit breaker, the input end of the rectifier and the output end of the rectifier are connected with a power interface of the PLC and the power interface of the touch display screen respectively; the communication output port of the PLC is connected with the communication input port of the touch display screen; the programmable controller is connected with the liquid level sensor, and is connected with the intermediate relay; and the intermediate relay and a warner are connected in series to the output end of the circuit breaker. The utility model can be used for measuring drilling mud in a real-time manner on a drilling operation site, and provide warning for abnormal liquid level of the drilling mud.

Description

The mud monitoring system

Technical field:

The utility model relates to a kind of monitoring system of detection of liquid level, is particularly useful for surveying the equipment that mud amount changes.

Background technology:

At present, in drillng operation, the subsurface formations complicated condition when brill runs into abnormal pressure or low-pressure stratum and carbonate formation, usually because of property of drilling fluid and strata pressure imbalance, causes engineering accidents such as overflow, well kick, blowout, leakage.Therefore, in drilling operation course, in the monitoring drilling mud pond variation of mud volume extremely important, the injection rate that need understand drilling mud at any time with return output and whether meet the implementation drilling process, whether with the strata pressure balance, reached the purpose of safety drilling.

Mud flows through vibrosieve, flow back into slurry tank through mud ditch again by anti-overflow pipe from well head, and the reaction time that makes monitoring well kick and leakage need is long; The slurry tank volume is big in addition, and after generation well kick or the leakage, the slurry tank liquid level change is slow, can not monitor well kick and leakage accident delicately.

Therefore, the system that needs a kind of quick, sensitive monitoring mud.

Summary of the invention:

For, overcoming above deficiency, the purpose of this utility model provides a kind of drilling mud level monitoring system, in particular for the situation of change of mud amount in drilling well production and other operations, provides the monitoring system of drilling mud real-time change situation.

The purpose of this utility model is achieved in that

The mud monitoring system, comprise touch display screen, programmable logic controller PLC, line breaker, rectifier, auxiliary reclay, liquid level sensor, alarm lamp, switch, the 220V/AC power supply links to each other with line breaker by switch, the output of line breaker and the input of rectifier, the output of rectifier links to each other with the power interface of programmable logic controller PLC power interface and touch display screen respectively, the communication output port of programmable logic controller PLC links to each other with the communication input port of touch display, programmable logic controller links to each other with liquid level sensor, programmable logic controller PLC links to each other with auxiliary reclay, and auxiliary reclay and alarm series connection are at the output of line breaker.

Programmable logic controller PLC connects the expansion panel by the expansion line, and the expansion panel links to each other with liquid level sensor.

The utility model can be used for the on-the-spot drilling mud liquid level of measuring in real time of drillng operation, and the purpose of drilling mud liquid level abnormal alarm is provided.This apparatus structure is simple, practical, precision is high, warning is sensitive, observes intuitive display.

Adopt the touch display screen handled easily, can carry out cylinder to mud reserves in the slurry tank shows, and have warning text prompt function, can also check records such as warning sequence number time and alert event, can also show the trend curve of slurry tank content gauge reserves simultaneously.

The utility model can be monitored a plurality of slurry tanks simultaneously by programmable logic controller PLC is expanded, and can require to carry out bound according to the reserves of each slurry tank and report to the police, and monitors the mud reserves situation of drilling well in real time.

Description of drawings

Fig. 1 is an elementary diagram of the present utility model

---switch G---liquid level sensor G1---positive end interface G2 of the liquid level sensor---signaling interface of liquid level sensor among the figure: K

Specific embodiment

In the present embodiment, touch display screen adopts the very color touch-screen of 65536 look TFT, rectifier power source adopts DZ-10A type rectifier power source, auxiliary reclay adopts DT1 type auxiliary reclay, line breaker adopts 2P/6A type line breaker, programmable logic controller PLC adopts the programmable logic controller PLC of 3108 models, and adopts 3310 expansion panels.

The 220V AC power is connected with DT1 type auxiliary reclay by K switch.DT1 type auxiliary reclay output links to each other with the input of DZ-10A type rectifier power source.The 220V alternating voltage becomes the 24V DC voltage after the rectification of DZ-10A type rectifier power source.The 24V dc voltage output end of DZ-10A type rectifier power source links to each other with the power input of the programmable logic controller PLC of very color touch-screen of 65536 look TFT and 3108 models respectively.The signal output part PORT1 of the programmable logic controller PLC of 3108 models links to each other with the signal input part COMO of the very color touch-screen of 65536 look TFT.The programmable logic controller PLC of 3108 models links to each other with 3310 expansion panels by the expansion line.The positive end interface G1 of liquid level sensor links to each other with the A+ port with the RA of 3310 expansion panels respectively.The signaling interface G2 of liquid level sensor links to each other with the A-port of 3310 expansion panels.The port Q1.6 of the programmable logic controller PLC of 3108 models and Q1.7 port link to each other with 13 with DT1 type auxiliary reclay port one 4 respectively.DT1 type auxiliary reclay and alarm lamp series connection are on the output of 2P/6A type line breaker.

Liquid level sensor G is transferred to the signal that detects the programmable logic controller PLC of 3108 models.The programmable logic controller PLC of 3108 models carries out data with signal to be handled, and converts mud reserves and height to, is sent to the very color touch-screen of 65536 look TFT by the signal data line.When the mud reserves surpass the upper limit or down in limited time, the action of the programmable logic controller PLC of 3108 models control DT1 type auxiliary reclay, alarm lamp is reported to the police.

Should be noted that at last: above embodiment only is not intended to limit in order to the explanation the technical solution of the utility model; Although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement the specific embodiment of the present utility model; And not breaking away from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.

Claims

1, the mud monitoring system, comprise touch display screen, programmable logic controller PLC, line breaker, rectifier, auxiliary reclay, liquid level sensor, alarm lamp, switch, it is characterized in that the 220V/AC power supply links to each other with line breaker by switch, the output of line breaker and the input of rectifier, the output of rectifier links to each other with the power interface of programmable logic controller PLC power interface and touch display screen respectively, the communication output port of programmable logic controller PLC links to each other with the communication input port of touch display, programmable logic controller links to each other with liquid level sensor, programmable logic controller PLC links to each other with auxiliary reclay, and auxiliary reclay and alarm series connection are at the output of line breaker.

2, according to the described mud monitoring system of claim 1, it is characterized in that programmable logic controller PLC connects the expansion panel by the expansion line, the expansion panel links to each other with liquid level sensor.