An ultrasonic detection device for detecting flow, a slurry pump outlet line

Abstract

The utility model provides a kind of for detecting the ultrasonic detection device of flow, slurry pump outlet pipeline, wherein, the ultrasonic detection device overall structure is annular structure;Sound wave signal transmitter, ultrasonic probe and data record and processor are equipped on the ultrasonic detection device, wherein, sound wave signal transmitter is configured as driving ultrasonic probe to generate sound wave signal;Reflection wave signal is generated when sound wave signal meets sound wave obstruction medium, and ultrasonic probe receives reflection wave signal;Data record and processor receive record reflection wave signal, and reflection wave signal is converted into frequency domain signal output.The slurry pump out pipeline includes slurry pump outlet pipeline body and the ultrasonic detection device for detecting the slurry pump outlet flow described above.The utility model's beneficial aspect lies in, without cutting or drilling to outlet pipeline, reduce the risk of outlet high-pressure pipeline puncture.

Description

Technical Field

[0001] This utility model relates to the field of petroleum engineering, specifically to an ultrasonic testing device for detecting flow rate and a mud pump outlet pipeline. Background Technology

[0002] During drilling, inaccurate predictions of formation information (formation pressure, fractures, faults, etc.) can lead to risks of drilling fluid loss and overflow. To better predict these risks, a non-full pipe outlet flow measurement device has been installed at the drilling site, but accurate measurement of the mud pump outlet flow has not been achieved. Therefore, it is necessary to provide an outlet pipeline flow detection device that can guarantee accurate predictions and is unaffected by corrosive liquids.

[0003] Chinese invention patent with publication number "CN102704874A" and title "A Drilling Fluid Return Flow Rate Detection Device and Method" discloses a drilling fluid return flow rate detection device. The device consists of one or more flow measurement short sections installed between the drilling fluid return outlet in the wellbore and the vibrating screen. This device uses a contact method to measure the flow rate, which has low reliability in long-term use, and the flow velocity at the mud pump outlet is high and the erosion is strong.

[0004] Chinese invention patent publication number "CN118793432A", entitled "An Overflow and Leakage Monitoring and Alarm System and Alarm Method", discloses an overflow and leakage monitoring and alarm system. This patent application measures the outlet flow rate of a mud pump using a pump flow sensor. While the pump flow sensor can accurately measure the pump flow rate of the mud pump, it cannot accurately measure the outlet flow rate. The calculated result has a large error. Utility Model Content

[0005] The purpose of this invention is to address at least one of the aforementioned shortcomings of the existing technology. For example, one objective of this invention is to provide an easy-to-operate ultrasonic testing device for detecting flow rate. Another objective of this invention is to provide a mud pump outlet pipeline capable of detecting outlet flow rate.

[0006] According to one or more exemplary embodiments of one aspect of the present invention, the overall structure of the ultrasonic testing device may be a ring structure; the ultrasonic testing device may be provided with a sound wave signal transmitter, an ultrasonic probe, and a data recorder and processor, wherein the sound wave signal transmitter may be configured to drive the ultrasonic probe to generate a sound wave signal; when the sound wave signal encounters a sound wave obstructing medium, a reflected wave signal is generated, and the ultrasonic probe receives the reflected wave signal; the data recorder and processor receives and records the reflected wave signal, and converts the reflected wave signal into a frequency domain signal for output.

[0007] According to an exemplary embodiment of one aspect of the present invention, the ultrasonic testing device may further include a digital display screen, which is connected to a data recorder and processor to display data converted by the data recorder and processor.

[0008] According to one or more exemplary embodiments of one aspect of the present invention, the ultrasonic detection device may further include a power supply that can supply power to the acoustic signal transmitter, the ultrasonic probe, and the data recorder and processor.

[0009] According to one or more exemplary embodiments of one aspect of the present invention, the digital display screen can be connected to a power source and powered by the power source.

[0010] According to one or more exemplary embodiments of one aspect of the present invention, the power source may include an explosion-proof lithium battery.

[0011] According to one or more exemplary embodiments of one aspect of the present invention, the annular structure is not closed, and fixing holes may be provided at the openings on both sides.

[0012] According to one or more exemplary embodiments of one aspect of the present invention, the fixing hole may include a threaded hole.

[0013] According to one or more exemplary embodiments of one aspect of the present invention, the ultrasonic testing device may be provided with an ultrasonic testing device housing in the circumferential direction.

[0014] According to one or more exemplary embodiments of one aspect of the present invention, the housing material of the ultrasonic testing device may include a polyester housing.

[0015] Another aspect of this utility model provides a mud pump outlet pipeline, which may include a mud pump outlet pipeline body and an ultrasonic detection device for detecting the mud pump outlet flow rate as described above. The ultrasonic device is installed on the outer surface of the mud pump outlet pipeline body, and the ultrasonic probe is tightly coupled to the outer surface of the mud pump outlet pipeline body.

[0016] Compared with the prior art, the beneficial effects of this utility model include at least one of the following:

[0017] (1) The ultrasonic testing device provided by this utility model does not require cutting or drilling of the outlet pipeline or stopping the fluid, which reduces the risk of leakage of the outlet high-pressure pipeline and also reduces the installation cost and construction difficulty.

[0018] (2) The mud pump outlet pipeline provided by this utility model is equipped with an ultrasonic detection device, which can detect the real-time flow rate of the mud pump outlet fluid in real time. Attached Figure Description

[0019] The above and other objects and / or features of this utility model will become clearer from the following description taken in conjunction with the accompanying drawings, wherein:

[0020] Figure 1 A schematic diagram of the ultrasonic testing device of this utility model is shown, illustrating its installation location and structure.

[0021] Figure 2 A schematic diagram of the ultrasonic testing device of this utility model is shown.

[0022] Explanation of key figure labels:

[0023] 1-Mud pump outlet pipeline, 2-Ultrasonic testing device, 3-Ultrasonic probe, 4-Sound signal transmitter, 5-Power supply, 6-Data logger and processor, 7-Digital display screen, 8-Fixing hole. Detailed Implementation

[0024] In the following description, an ultrasonic testing device for detecting flow rate and a mud pump outlet pipeline of the present invention will be described in detail with reference to exemplary embodiments.

[0025] In the description of this application, it should be understood that the terms "inner," "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] First exemplary embodiment

[0027] This exemplary embodiment provides an ultrasonic testing device for detecting the outlet flow rate of a mud pump.

[0028] Figure 1 A schematic diagram of the ultrasonic testing device of this utility model is shown, illustrating its installation location and structure. Figure 2 A schematic diagram of the ultrasonic testing device of this utility model is shown. The following is in conjunction with... Figures 1-2 This exemplary embodiment describes an ultrasonic testing device for detecting the outlet flow rate of a mud pump. Figure 1 This is equivalent to showing a cross-sectional view of the casing bypass valve when it is closed.

[0029] In this exemplary embodiment, as Figure 2 As shown, the ultrasonic testing device mainly includes a sound wave signal transmitter 4, an ultrasonic probe 3, and a data recording and processor 6. The sound wave signal transmitter 4 is connected to the ultrasonic probe 3 and is configured to drive the ultrasonic probe 3 to generate a sound wave signal. When the sound wave signal encounters a sound wave impeding medium, it generates a time-domain reflected wave signal. Specifically, the sound wave signal is transmitted through the outer wall of the outlet pipeline into the drilling fluid inside the outlet pipeline. The drilling fluid consists of a solid phase and a liquid phase. The solid phase in the drilling fluid impedes the propagation of the sound wave, resulting in reflection. When the sound wave signal encounters the solid phase (sound wave impeding medium / scatterer) in the drilling fluid, it generates a reflected wave signal, which can be received by the ultrasonic probe 3. The data recording and processor 6 is connected to the ultrasonic probe 3. When the ultrasonic probe 3 receives the reflected wave signal, the data recording and processor 6 records the reflected wave signal received by the ultrasonic probe 3 and converts the reflected wave signal into a frequency domain signal. Specifically, when the ultrasonic probe 3 receives the returned reflected wave signal, the data recorder and processor uses Fourier transform to convert the time-domain signal (reflected wave signal) received by the ultrasonic probe into a frequency-domain signal output. On-site construction personnel combine the frequency-domain signal to obtain the frequency shift, and then combine it with data such as the cross-sectional diameter of the outlet pipeline to obtain the mud pump outlet flow rate. Because the mud pump outlet pipeline contains high-pressure fluid and the drilling fluid in the pipeline has a complex composition (different densities, different viscosities, and contains solid phases), the ultrasonic detection device of this application does not come into contact with the flowing fluid, nor does it require cutting or drilling the mud pump outlet pipeline. The sensor will not accumulate scale due to the dirt of the medium, making it easy to install, highly reliable, and explosion-proof.

[0030] In this exemplary embodiment, as Figure 1 As shown, the overall structure of the ultrasonic testing device 2 can be ring-shaped. Setting the ultrasonic testing device 2 as a ring structure is more conducive to fixing the ultrasonic testing device 2 to the mud pump outlet pipeline 1, matching the shape of the mud pump outlet pipeline 1, making installation convenient and saving implementation space.

[0031] In this exemplary embodiment, as Figure 2 As shown, the annular structure has an outward opening, and a fixing hole 8 is provided at the opening. The fixing hole 8 may be a threaded hole. After the ultrasonic testing device is installed on the mud pump outlet pipeline, a fastener, such as a bolt, can be added to the fixing hole 8 to fix the ultrasonic testing device to the mud pump outlet pipeline, thereby improving its stability.

[0032] In this exemplary embodiment, the ultrasonic testing device may be provided with an annular ultrasonic testing device housing on the outside. The ultrasonic testing device housing may include a polyester housing, which has the properties of sealing, explosion-proof, and isolating mud pump noise, thereby reducing the interference of mud pump noise on ultrasonic signals.

[0033] In this exemplary embodiment, a partition iron plate may be provided between the acoustic signal transmitter, the ultrasonic probe, and the data recorder and processor. The partition iron plate divides the annular structure into multiple compartments, and the acoustic transmitter and other devices can be fixed in each compartment accordingly, separating the devices and preventing rainwater and dust from entering the compartments. Furthermore, it can also better fix the ultrasonic detection device to the pipe, preventing it from falling off.

[0034] In this exemplary embodiment, as Figure 2 As shown, the ultrasonic testing device may further include a power supply 5, which is connected to the acoustic signal transmitter 4, ultrasonic probe 3, data recorder and processor 6, and digital display screen 7, and supplies power to these components to maintain normal operation. Here, the acoustic signal transmitter 4, ultrasonic probe 3, data recorder and processor 6, and digital display screen 7 can be connected via optical fiber to enable communication processing between signals. Specifically, provided the interconnection relationships are satisfied, the fixed positions of the power supply 5, acoustic signal transmitter 4, ultrasonic probe 3, data recorder and processor 6, and digital display screen 7 can be adjusted.

[0035] In this exemplary embodiment, the power source may include an explosion-proof lithium battery. Explosion-proof lithium batteries are suitable for use in oil and gas drilling and production sites, chemical explosion-proof environments, and instruments at drilling sites need to have explosion-proof performance; therefore, explosion-proof lithium batteries are preferably selected.

[0036] In this exemplary embodiment, as Figure 2 As shown, the ultrasonic testing device may also include a digital display screen 7, which is connected to a data recorder and processor 6 to display data converted by the data recorder and processor. Furthermore, it can also display information such as pipeline flow velocity, cross-sectional area, and outlet flow rate.

[0037] Second exemplary embodiment

[0038] This exemplary embodiment provides a mud pump outlet pipeline.

[0039] Figure 1 A schematic diagram of the mud pump outlet pipeline structure of an exemplary embodiment of the present invention is shown below. Figure 1 To describe the mud pump outlet pipeline in this exemplary embodiment. Here, Figure 1 This is equivalent to showing a cross-sectional view of the casing bypass valve when it is closed.

[0040] In this exemplary embodiment, as Figure 1As shown, the mud pump outlet pipeline mainly includes the mud pump outlet pipeline body 1 and the ultrasonic testing device 2 for detecting the mud pump outlet flow rate as described in the first exemplary embodiment above. The ultrasonic testing device 2 can be installed at any position outside the mud pump outlet pipeline body 1.

[0041] In this exemplary embodiment, since the drilling fluid in the mud pump outlet pipeline is flowing, according to the Doppler effect, the frequency of the reflected sound wave changes as the drilling fluid approaches or moves away from the location of the ultrasonic detection device. Therefore, based on the relationship between the amplitude of the sound wave frequency change, the flow velocity of the drilling fluid, and the diameter of the outlet pipeline, the real-time flow rate of the fluid at the mud pump outlet can be accurately fed back. Specifically, because there is a solid phase (sound wave impeding medium) in the drilling fluid in the mud pump outlet pipeline, when the ultrasonic probe emits a sound wave signal, the sound wave signal will generate a reflected wave signal due to encountering the sound wave impeding medium in the drilling fluid, and the frequency of the reflected wave will shift due to the Doppler effect. The data recorder and processor receive and process this reflected wave signal and output a frequency domain signal. On-site construction personnel can calculate the flow velocity based on the frequency shift between the sound wave signal and the received reflected wave signal, and calculate the outlet flow rate by combining it with the diameter (cross-sectional area) of the outlet pipeline. Specifically, the calculation formula is as follows:

[0042] The frequency shift is calculated based on the reflected wave detected by the ultrasonic probe, as shown in Equation 1:

[0043] f d =f r -f t Formula 1

[0044] Among them, f d f is the Doppler frequency shift, in Hz; r f is the frequency of the reflected wave, which is the frequency at which the ultrasonic wave is received by the probe after being reflected by particles in the fluid, expressed in Hz; t The transmitted wave frequency is the initial frequency of the ultrasonic wave emitted by the probe, expressed in Hz.

[0045] Based on the frequency shift obtained from Equation 1, the local flow velocity of the fluid is calculated, as shown in Equation 2:

[0046] (Velocity component along the direction of the sound beam); Equation 2

[0047] Where v is the fluid velocity component along the direction of the sound beam, m / s; c is the propagation speed of the ultrasound in the fluid, m / s; and θ is the angle between the direction of the sound beam and the fluid axis (flow direction), °.

[0048] The local fluid velocity obtained from Equation 2 is converted to the axial velocity, as shown in Equation 3:

[0049]

[0050] Where V is the axial velocity of the fluid (i.e., the velocity in the direction parallel to the pipe axis), in m / s.

[0051] Based on the axial velocity of the fluid obtained from Equation 3, the average velocity of the fluid is corrected and obtained as shown in Equation 4:

[0052] V avg =K·V; Equation 4

[0053] Among them, V avg is the average flow velocity of the fluid, in m / s; K is the velocity correction coefficient (dimensionless coefficient), used to correct for non-uniform velocity distribution in the pipe (such as the effects of turbulence and laminar flow), and is dimensionless.

[0054] Finally, based on the average flow velocity of the fluid obtained from Equation 4, the average flow rate of the fluid is calculated, as shown in Equation 5:

[0055]

[0056] Where Q is the average volumetric flow rate of the fluid, m 3 / s; D is the inner diameter of the pipe, in meters.

[0057] This application uses ultrasonic testing technology to detect the flow rate of the outlet pipeline, which is less dependent on the accuracy of pipeline parameters, such as the accuracy requirements for parameters such as the inner diameter, wall thickness, and lining material of the pipeline; it can flexibly install ultrasonic testing devices without cutting off the pipeline or stopping the fluid, which greatly reduces the installation cost and difficulty.

[0058] In summary, the advantages of this utility model may include at least one of the following:

[0059] (1) The ultrasonic testing device provided by this utility model can reduce the interference of mud pump noise on ultrasonic signals and has explosion-proof performance.

[0060] (2) The ultrasonic testing device provided by this utility model is installed on the outside of the mud pump outlet pipeline. It is not affected by corrosive liquids, is not afraid of wear, has no flow obstruction in the slurry state, and has no pressure drop, thus enabling accurate detection.

[0061] (3) The ultrasonic testing device provided by this utility model has low dependence on pipeline parameters for detecting the flow rate of the outlet pipeline. It can detect flow data without providing high-precision pipeline parameters, and the implementation cost is low.

[0062] (4) The mud pump outlet pipeline provided by this utility model can accurately determine whether an overflow or well leakage has occurred, which is more conducive to operators making quick judgments.

[0063] Although the present invention has been described above with reference to exemplary embodiments, including an ultrasonic testing device for detecting flow rate and a mud pump outlet pipeline, those skilled in the art should understand that various modifications and changes can be made to the exemplary embodiments of the present invention without departing from the spirit and scope defined by the claims.

Claims

1. An ultrasonic detection device for detecting the flow rate of a slurry pump outlet, characterized in that, The ultrasonic testing device has a ring-shaped overall structure; it is equipped with a sound wave signal transmitter, an ultrasonic probe, and a data recorder and processor. The acoustic signal transmitter is configured to drive the ultrasonic probe to generate an acoustic signal; when the acoustic signal encounters a medium that obstructs the acoustic wave, it generates a reflected signal, which the ultrasonic probe receives. The data recorder and processor receives the reflected wave signal and converts it into a frequency domain signal for output.

2. The ultrasonic testing device for detecting the outlet flow rate of a mud pump according to claim 1, characterized in that, The ultrasonic testing device also includes a digital display screen, which is connected to the data recorder and processor to display the data converted by the data recorder and processor.

3. The ultrasonic testing device for detecting the outlet flow rate of a mud pump according to claim 2, characterized in that, The ultrasonic testing device also includes a power supply that supplies power to the acoustic signal transmitter, the ultrasonic probe, and the data recorder and processor.

4. The ultrasonic detection apparatus for detecting the flow rate of a slurry pump outlet according to claim 3, characterized by, The digital display screen is connected to a power source and is powered by the power source.

5. The ultrasonic detection apparatus for detecting the flow rate of a slurry pump outlet according to claim 3, characterized by, The power source includes an explosion-proof lithium battery.

6. The ultrasonic detection apparatus for detecting the flow rate of a slurry pump outlet according to claim 1, characterized by, The ring structure is not closed, and there are fixing holes at the openings on both sides.

7. The ultrasonic detection apparatus for detecting the flow rate of a slurry pump outlet according to claim 6, characterized by, The fixing hole includes a threaded hole.

8. The ultrasonic detection apparatus for detecting the flow rate of a slurry pump outlet according to claim 1, characterized by, The ultrasonic testing device is provided with an ultrasonic testing device housing in the circumferential direction.

9. The ultrasonic testing device for detecting the outlet flow rate of a mud pump according to claim 8, characterized in that, The housing of the ultrasonic testing device includes a polyester housing.

10. A slurry pump outlet line characterized by, The mud pump outlet pipeline includes a mud pump outlet pipeline body and an ultrasonic testing device for detecting the mud pump outlet flow rate as described in any one of claims 1 to 9. The ultrasonic device is installed on the outer surface of the mud pump outlet pipeline body, and the ultrasonic probe is tightly coupled to the outer surface of the mud pump outlet pipeline body.

Images