CN2373557Y

CN2373557Y - Drilling fluid volume instrument

Info

Publication number: CN2373557Y
Application number: CN 98237991
Authority: CN
Inventors: 文必用; 郑江勇; 郑江杰
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-06-18
Filing date: 1998-06-18
Publication date: 2000-04-12
Anticipated expiration: 2008-06-18

Abstract

The utility model relates to a drilling fluid volume instrument, which belongs to electronic instruments on the petroleum industry. The instrument comprises five probe contact type liquid level sensors (1) to (5), a single chip computer processing system (6) and a drill floor parameter indicator (7). The liquid level sensor (1) to (5) adopt probe contact tracking type sensors, which only contacts with the liquid level, and the liquid level is tracked repeatedly, and the high precision is plus and minus 2 millimeters. The volume of the generation of well kick and circulation loss in the bottom of the well can be detected exactly by the adoption of the single chip computer processing system by the instrument. Alarms alarm at over-limit times, and accidents of the well kick and the circulation loss can be prevented.

Description

Drilling fluid volume instrument

The utility model belongs to the petroleum industry electronic instrument, relates to a kind of drilling fluid volume instrument.

Float type level gauge is generally adopted in the at present domestic drilling fluid tank position of detecting in drilling engineering, because drilling fluid viscosity proportion changes in drilling process greatly, and problem such as existence is easily crusted, error is big, spoilage is high, reliability is bad.

The purpose of this utility model provides a kind of drilling fluid volume instrument, this instrument liquid surface height sensor adopts probe points to touch the tracking mode sensor, only contact liquid level, follow the tracks of liquid level repeatedly, the precision height adopts single-chip microcomputer to handle and can accurately detect the volume that well kick, leakage take place in the shaft bottom at ± 2mm, has overload alarm, the time the real multiple functions such as print data, drilling parameter demonstration that transfinite, and can prevent effectively that well kick, leakage accident from taking place.

In conjunction with the accompanying drawings the utility model is further described:

Fig. 1 is a drilling fluid volume instrument frame principle figure.

Fig. 2 is the software programming key diagram.

Fig. 3 is the liquid surface height sensor structure chart.

(1) to (5) is five probe points touch liquid surface height sensors among Fig. 1, and (6) are the single chip microcomputer treatment system, comprising: CPU, UPS, CRT, RS232, Print, Key, (7) are rig floor parameter display.

(1)-(5) are liquid surface height sensor among Fig. 3, and (8) are that probe, (9) are control circuit for drive, (11) for dc motor, (12) for cylinder, (10).

The utility model is to realize like this (such as Fig. 1): a kind of drilling fluid volume instrument by Five probe points touch liquid surface height sensors (1)-(5), scm managing system (6) Form with drilling parameter display (7), five liquid surface height sensors (1)-(5) respectively Be installed in five slurry tank tops (A)-(E) locate, rig floor parameter display device (7) is installed Other (F) locates the scm managing system transmission signal line at driller front weight indicator Connect rig floor parameter display device communication signal with liquid surface height sensor (1)-(5) Line connects with scm managing system.

Liquid surface height sensor comprises: probe (8), cylinder (9), drive (10), straight Stream motor (11) and control circuit (12), scm managing system comprise hardware circuit with Software application, rig floor parameter display device comprises the bright outdoor display screen of extra-high-speed, list Sheet machine hardware circuit and software application.

Drilling fluid volume instrument can transfinite to each slurry tank liquid level, the mud cumulative volume transfinites, well kick, leakage transfinite, and value is carried out display alarm, can prevent that well kick, leakage accident from taking place, this instrument can be provided with currency during drilling fluid at any time automatically according to preparation, can show 15 kinds of parameters in the machine, 12 kinds of alarm signals.Also can pass through RS232 serial port and microcomputer communication, improve bit speed, reduce cost, can shorten drilling period.

An embodiment is described below: at first be processing to liquid surface height sensor, assemble by Fig. 3, then to the SCM system hardware circuit, display circuit, printer, uninterrupted power source and input, output interface assemble in the machine, carry out software programming at last, the emulation copy.Assembling of single-chip microcomputer hardware and software programming in the rig floor parameter display, emulation copy.

Claims

1, a kind of drilling fluid volume instrument is made up of five probe points touch liquid surface height sensors (1)-(5), scm managing system (6) and rig floor parameter display (7); It is characterized in that liquid surface height sensor (1)-(5) are contained in five slurry tank tops (A)-(E) locate respectively, rig floor parameter display (7) is installed in driller front weight indicator other (F) and locates.Scm managing system connects with liquid surface height sensor (1)-(5) with transmission signal line, and rig floor parameter display connects with scm managing system with the communication signal line.

2, drilling fluid volume instrument according to claim 1, it is characterized in that liquid surface height sensor comprises probe (8), cylinder (9), drive (10), dc motor (11) and control circuit (12), scm managing system comprises hardware circuit and software application, and rig floor parameter display comprises the bright display screen of extra-high-speed, single-chip microcomputer hardware and software application program.