Mud flow rate is measured jar
Technical field
The utility model relates to flow measurement device, and specifically a kind of mud flow rate is measured jar.
Background technology
At present, the device of measuring mud-outlet-flow in oil drilling generally adopts the wushu flow meter, it is made up of pendulum handle, angular transducer, when mud with certain flow velocity ballistic pendulum the time, pendulum is being offset certain angle, measure this angle by angular transducer, draw the relative quantity of mud flow rate.This kind flow meter can only be measured the relative increment of mud, mensuration mud flow rate that can not be quantitative, and the rate of discharge of mud is a very important parameter in the Process of Oil Well Drilling.
Summary of the invention
The purpose of this utility model is that a kind of mud flow rate that provides at the deficiencies in the prior art is measured jar, it utilizes measures the mud level that jar interior baffle plate is measured the baffle plate upstream, and measure mud-outlet-flow according to the computational methods of open channel flow rate, solved the difficult problem of quantitative assay mud-outlet-flow in the oil drilling, the utility model is simple in structure, easy to use, measure accurately.
The concrete technical scheme that realizes the utility model purpose is: a kind of mud flow rate is measured jar, characteristics are that tank body is a rectangular box, its two ends are respectively equipped with the mud import and export, be provided with baffle plate in the tank body, baffle plate upper and lower is respectively equipped with the slurry channel wide with baffle plate, and the tank body top between mud import and baffle plate is provided with liquid level sensor.
The utility model is reasonable in design, and is simple in structure, has easy to usely, measures characteristic of accurate, solved the difficult problem of quantitative assay mud-outlet-flow in the oil drilling.
Description of drawings
Fig. 1 is the utility model structural representation
Fig. 2 is the A-A sectional view of Fig. 1
The specific embodiment
Consult accompanying drawing 1~2, tank body 5 of the present utility model is a rectangular box, its two ends are respectively equipped with mud import and export 1,6, be provided with baffle plate 4 in the tank body 5, the upper and lower of baffle plate 4 is respectively equipped with the slurry channel 3,7 wide with baffle plate 4, and tank body 5 tops between mud import 1 and baffle plate 4 are provided with liquid level sensor 2.
The utility model is to use like this: mud import 1 is connected on the mud outlet conduit of drilling well, mud outlet 6 is connected with the vibrations grid of oil drilling, the measuring-signal of liquid level sensor 2 connects PC, the mud of drilling well enters tank body 5 from import 1 to be stopped through baffle plate 4, mud can only flow out from baffle plate 4 bottoms and baffle plate 4 wide slurry channels 7, and flow out tank bodies 5 to the vibrations grid from mud outlet 6, when mud flow rate hour, liquid level in the tank body 5 is not higher than baffle plate 4, baffle plate 4 is similar to sluice, by sluice aperture (being the height of baffle plate 4 bottom slurry channels 7) computation of mud flow, when mud flow rate is big, when the mud level in the tank body 5 is higher than baffle plate 4, mud will be simultaneously from baffle plate 4, following two passages 3,7 flow out, and at this moment baffle plate 4 is similar to sharp-crested weir one, and the flow of baffle plate 4 bottom slurry channels 7 is still pressed sluice method computation of mud flow, the mud flow rate on baffle plate 4 tops is then pressed mill weir hydrometry computation of mud flow, and two parts addition is mud-outlet-flow.Liquid level sensor 2 is used for measuring the mud level (mud level that promptly is higher than baffle plate 4) of baffle plate 4 upstreams, utilizes mill weir hydrometry computation of mud flow according to liquid level.The mud-outlet-flow that the utility model is measured oil drilling is very simple, has easy to usely, measures advantage accurately.