阅读说明：本技术 泥浆循环罐的液面测量装置及方法 (Liquid level measuring device and method for slurry circulation tank ) 是由 刘锋报 尹达 孙爱生 刘潇 晏智航 郭秋田 刘德智 于 2019-03-06 设计创作，主要内容包括：本发明提供一种泥浆循环罐的液面测量装置及方法,该方法,包括采用声波发射器和接收器、泥浆循环罐、测量管,以及处理器等测量装置,其中,所述测量管的一端伸入所述泥浆循环罐内,且所述测量管的一端浸没在液面以下,所述测量管的另一端与所述声波发射器和接收器连接；所述声波发射器和接收器测量所述测量管内的液面数据,并将所述液面数据发送给所述处理器。本发明提高了泥浆循环罐液面测量的精准度,同时提高处理溢流及漏失的效率,有效降低钻井周期和钻井成本,确保钻井施工的安全。(The invention provides a liquid level measuring device and a method of a slurry circulating tank, and the method comprises measuring devices such as an acoustic wave emitter and a receiver, the slurry circulating tank, a measuring pipe and a processor, wherein one end of the measuring pipe extends into the slurry circulating tank, one end of the measuring pipe is immersed below the liquid level, and the other end of the measuring pipe is connected with the acoustic wave emitter and the receiver; the acoustic transmitter and receiver measure liquid level data within the measurement tube and send the liquid level data to the processor. The invention improves the accuracy of measuring the liquid level of the slurry circulation tank, improves the efficiency of treating overflow and leakage, effectively reduces the drilling period and the drilling cost, and ensures the safety of drilling construction.)

1. A liquid level measuring device of a slurry circulation tank, comprising:

the device comprises a sound wave emitter and receiver, a mud circulation tank, a measuring pipe and a processor, wherein one end of the measuring pipe extends into the mud circulation tank, one end of the measuring pipe is immersed below the liquid level, and the other end of the measuring pipe is connected with the sound wave emitter and receiver; the acoustic transmitter and receiver measure liquid level data within the measurement tube and send the liquid level data to the processor.

2. The apparatus of claim 1, wherein the acoustic transmitter and receiver measure the liquid level in the measurement pipe by transmitting an acoustic signal and receiving a reflected signal of the acoustic signal, wherein the liquid level in the measurement pipe coincides with the liquid level in the mud circulation tank.

3. The apparatus of claim 1, further comprising a data transmission line for connecting said acoustic transmitter and receiver to said processor; and the sound wave transmitter and the sound wave receiver send the measured liquid level data to the processor through the data transmission line.

4. The device according to claim 1, wherein an injection pipe is further arranged on the main pipeline of the measuring pipe, one end of the injection pipe is communicated with the main pipeline of the measuring pipe, the other end of the injection pipe is an open end, the open end is higher than the liquid level of the slurry circulation tank, and the injection pipe is used for adding an antifoaming agent into the measuring pipe.

5. The apparatus of claim 3, wherein the data transmission line is made of an explosion-proof material.

6. The device according to any one of claims 1-5, further comprising an alarm electrically connected to the processor, the alarm configured to send an alarm signal when the fluid level data is abnormal.

7. A method for measuring a liquid level in a slurry circulation tank, characterized by applying the apparatus for measuring a liquid level in a slurry circulation tank according to any one of claims 1 to 6, the method comprising:

the sound wave transmitter and the sound wave receiver send sound wave signals to the measuring pipe and receive reflected signals generated when the sound wave signals contact the liquid level in the measuring pipe;

the sound wave emitter and the sound wave receiver analyze the reflected signals to obtain liquid level data in the measuring pipe;

the sound wave transmitter and the receiver transmit the liquid level data to the processor;

and analyzing the liquid level data by the processor to obtain the liquid level height of the slurry circulating tank.

8. The method of claim 7, further comprising, before the acoustic transmitter and receiver emit the acoustic signal into the measurement tube:

and detecting whether the liquid level of the slurry circulation tank contains bubbles or not, and if so, injecting an antifoaming agent into the measuring pipe.

9. The method of claim 7, further comprising:

measuring the liquid level height of the slurry circulation tank for multiple times within a preset time period;

and calculating the average value of the liquid level heights, and taking the average value as the final liquid level height.

10. The method according to any one of claims 7-9, further comprising:

comparing the current liquid level height with the previous liquid level height, and if the difference value between the current liquid level height and the previous liquid level height is not within a preset threshold range, sending an alarm signal through an alarm;

and if the difference value between the current liquid level height and the last liquid level height is within a preset threshold range, outputting the current liquid level height.

Technical Field

The invention relates to the technical field of petroleum and natural gas drilling fluids, in particular to a liquid level measuring device and method of a slurry circulating tank.

Background

With the technological progress and development, the oil and gas industry gradually becomes an important driving force of global economy and an important pillar for normal operation of modern society, and petroleum and natural gas occupy an important position in the global energy consumption.

At present, the mutual combination and permeation of high technology and oil gas industry promote the improvement of petroleum and petrochemical technology and equipment level, accelerate the updating of petroleum and petrochemical products and the exploration and exploitation of oil gas, wherein, the slurry circulation tank is mainly applied to oil drilling solid control systems and the like, and has the advantages of high corrosion resistance, rust resistance, long service life and the like.

However, factors affecting the measurement accuracy of the mud circulation tank, such as human factors, the measurement accuracy of equipment, drilling fluid bubbles, drilling fluid level fluctuation, measurement specifications, tank bottom sand setting and the like, all limit the accuracy of the liquid level measurement. Along with the increase of the drilling depth and the difficulty, the underground working condition is more complex, and various factors comprehensively influence the measurement of the liquid level of the mud circulation tank, so that the measurement accuracy of the liquid level of the mud circulation tank is poor, and the well control work can be even influenced in serious cases.

Disclosure of Invention

The invention provides a liquid level measuring device and method of a mud circulation tank, which are used for improving the accuracy of liquid level measurement of the mud circulation tank, improving the efficiency of overflow and leakage treatment, effectively reducing the drilling period and the drilling cost and ensuring the safety of drilling construction.

In a first aspect, an embodiment of the present invention provides a liquid level measuring device for a mud circulation tank, including:

the device comprises a sound wave emitter and receiver, a mud circulation tank, a measuring pipe and a processor, wherein one end of the measuring pipe extends into the mud circulation tank, one end of the measuring pipe is immersed below the liquid level, and the other end of the measuring pipe is connected with the sound wave emitter and receiver; the acoustic transmitter and receiver measure liquid level data within the measurement tube and send the liquid level data to the processor.

In one possible design, the acoustic transmitter and receiver measure the liquid level in the measurement pipe by transmitting an acoustic signal and receiving a reflected signal of the acoustic signal, wherein the liquid level in the measurement pipe coincides with the liquid level in the mud circulation tank.

In one possible design, the system further comprises a data transmission line for connecting the acoustic transmitter and receiver to the processor; the acoustic transmitter and receiver send the measured fluid level data to the processor via the data transmission.

In a possible design, still set up the filling tube on the main pipeline of survey buret, the one end of filling tube with the main pipeline intercommunication of surveying buret, the other end of filling tube is the open end, just the open end is higher than the liquid level of mud circulation jar, the filling tube be used for to add the defoaming agent in the survey buret.

In one possible design, the data transmission line is made of explosion-proof material.

In a possible design, the liquid level monitoring device further comprises an alarm electrically connected with the processor, and the alarm is used for sending out an alarm signal when the liquid level data is abnormal.

In a second aspect, an embodiment of the present invention provides a method for measuring a liquid level of a mud circulation tank, which applies the device for measuring a liquid level of a mud circulation tank according to any one of the first aspect, the method including:

the sound wave transmitter and the sound wave receiver send sound wave signals to the measuring pipe and receive reflected signals generated when the sound wave signals contact the liquid level in the measuring pipe;

the sound wave emitter and the sound wave receiver analyze the reflected signals to obtain liquid level data in the measuring pipe;

the sound wave transmitter and the receiver transmit the liquid level data to the processor;

and analyzing the liquid level data by the processor to obtain the liquid level height of the slurry circulating tank.

In one possible design, before the acoustic transmitter and the receiver send out the acoustic signal to the measurement pipe, the method further includes:

and detecting whether the liquid level of the slurry circulation tank contains bubbles or not, and if so, injecting an antifoaming agent into the measuring pipe.

In one possible design, further comprising:

measuring the liquid level height of the slurry circulation tank for multiple times within a preset time period;

and calculating the average value of the liquid level heights, and taking the average value as the final liquid level height.

In one possible design, further comprising:

and comparing the current liquid level height with the last liquid level height, and sending an alarm signal through an alarm if the difference value between the current liquid level height and the last liquid level height is not within a preset threshold range.

And if the difference value between the current liquid level height and the last liquid level height is within a preset threshold range, outputting the current liquid level height.

The invention provides a liquid level measuring device and a method of a slurry circulating tank, and the method comprises measuring devices such as an acoustic wave emitter and a receiver, the slurry circulating tank, a measuring pipe and a processor, wherein one end of the measuring pipe extends into the slurry circulating tank, one end of the measuring pipe is immersed below the liquid level, and the other end of the measuring pipe is connected with the acoustic wave emitter and the receiver; the acoustic transmitter and receiver measure liquid level data within the measurement tube and send the liquid level data to the processor. The invention improves the accuracy of measuring the liquid level of the slurry circulation tank, improves the efficiency of treating overflow and leakage, effectively reduces the drilling period and the drilling cost, and ensures the safety of drilling construction.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a liquid level measuring device of a slurry circulation tank according to an embodiment of the invention;

FIG. 2 is a schematic structural diagram of a liquid level measuring device of a slurry circulation tank according to a second embodiment of the present invention;

fig. 3 is a schematic structural diagram of a liquid level measuring device of a slurry circulation tank according to a third embodiment of the invention;

FIG. 4 is a schematic structural diagram of a liquid level measuring device of a slurry circulation tank according to a fourth embodiment of the present invention;

FIG. 5 is a flow chart of a method for measuring the liquid level in the mud circulation tank according to a fifth embodiment of the present invention;

fig. 6 is a flowchart of a liquid level measuring method of a mud circulation tank according to a sixth embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.