CN110006955B - Detection device for detecting sand content in oil and gas pipeline - Google Patents
Detection device for detecting sand content in oil and gas pipeline Download PDFInfo
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- CN110006955B CN110006955B CN201910330921.7A CN201910330921A CN110006955B CN 110006955 B CN110006955 B CN 110006955B CN 201910330921 A CN201910330921 A CN 201910330921A CN 110006955 B CN110006955 B CN 110006955B
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- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/08—Measuring resistance by measuring both voltage and current
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Abstract
The invention provides a detection device for detecting the sand content in an oil and gas pipeline. The detection device comprises an electric wire and a detection device body, wherein the detection device body is arranged in an oil-gas pipeline, a through hole penetrating through a side surface wall is formed in the side surface wall of the oil-gas pipeline, and the electric wire penetrates through the through hole to be electrically connected with the detection device body. The detection device body comprises at least one arc body, the arc body is tightly attached to the inner side wall of the oil and gas pipeline, and the detection device body further comprises at least one straight line body arranged along the chord direction or the radial direction of the cross section of the oil and gas pipeline. Compared with the existing detection device, the detection device has the advantages that the detection area of the detection device body is increased, and a more accurate detection result can be obtained.
Description
Technical Field
The invention belongs to the technical field of oil and gas pipeline detection devices, and particularly relates to a detection device for detecting the sand content in an oil and gas pipeline.
Background
Sand is very common in oil and gas production pipelines, and erosion of sand is one of the main causes of pipeline rupture, and therefore, detection of sand is very important in oil and gas production. The existing detection equipment is mainly based on three principles:
based on acoustic wave technology. Such sand detecting devices are installed outside the pipe to detect sound waves generated by sand hitting the inner wall of the pipe. Such devices are suitable for continuous monitoring of relatively large amounts of sand due to interference from various noises.
Based on ultrasonic technology. The equipment is also arranged outside the pipeline, and the thickness of the pipe wall is measured by using ultrasonic waves, so that the thinning of the pipe wall caused by sand erosion is monitored. The conventional single-point measuring devices are not easy to install at the right position (the pipe wall is thinnest, and the latest multi-point measuring devices can effectively avoid the defect). Generally, the accuracy of ultrasonic monitoring devices is limited.
Based on the resistive properties of the element. The detection element of the equipment is in direct contact with oil gas flow, erosion of sand on the surface of the detection element can change the resistance characteristic of the element, the erosion amount can be reversely deduced by monitoring the change of the resistance of the element, and the equipment has the main advantage of high measurement accuracy. The current method for installing a detection device based on the resistance characteristic of an element is to insert a small cylindrical detection device into the pipeline, and the detection element is arranged in the direction of the cylindrical body looking at the flowing direction of the fluid. The sand-laden fluid impinges directly on the sensing element causing erosion to be detected. The disadvantage of this type of test apparatus is that the contact area with the oil and gas stream is too small, and the test results depend heavily on the homogeneous distribution of sand particles in the fluid, so that the ideal point is downstream of the choke (because the fluid and sand particles are well mixed after passing through the choke). If the installation position is not appropriate, a large amount of sand may form a sand grain bundle, bypass the detection element, and thus be undetected.
Disclosure of Invention
The invention aims to provide a detection device for detecting the sand content in an oil and gas pipeline, which can increase the detection area.
In order to achieve the purpose, the detection device provided by the invention comprises an electric wire and a detection device body, wherein the detection device body is arranged inside an oil-gas pipeline, a through hole penetrating through the side surface wall is formed in the side surface wall of the oil-gas pipeline, a positive electrode and a negative electrode are arranged on the detection device body, the electric wire comprises a positive electrode wire and a negative electrode wire, the positive electrode wire is electrically connected with the positive electrode wire, the negative electrode wire is electrically connected with the negative electrode wire, the detection device body comprises at least one arc body, the arc body is tightly attached to the inner side wall of the oil-gas pipeline, and the detection device body further comprises at least one straight line body arranged along the chord direction or the radial direction of the cross section of the oil-gas pipeline.
According to the scheme, the detection device body comprises at least one arc body, the arc body is tightly attached to the inner side wall of the oil-gas pipeline, the support effect is achieved, and the detection device body is prevented from falling due to dead weight or oil-gas impact. The detection device body further comprises at least one straight line body which is arranged along the chord direction or the radial direction of the cross section of the oil-gas pipeline, and the straight line body is arranged in the center of the oil-gas pipeline, so that the detection area of the detection device body can be increased, more accurate detection results can be obtained, and the maintenance and the replacement of the oil-gas pipeline are facilitated.
Preferably, the number of the linear bodies is two or more.
Further, the plurality of linear bodies are uniformly arranged along the circumferential direction of the detection device body.
According to a further aspect, the detecting device body may include a first arc body, a second arc body, a first straight body, a third arc body, a second straight body, a fourth arc body, a fifth arc body, a sixth arc body, and a third straight body, wherein the first arc body, the first straight body, the third arc body, the second straight body, the fourth arc body, the fifth arc body, the sixth arc body, and the third straight body are sequentially connected end to end.
In a further scheme, the included angle between the axes of any two of the first linear body, the second linear body and the third linear body is 120 degrees.
In the above scheme, the cooperation between first circular arc body, second circular arc body, fifth circular arc body, sixth circular arc body and the oil gas pipeline inside wall is interference fit, and above-mentioned four circular arc bodies just tightly laminate on the oil gas pipeline inside wall like this for whole detection device body tightly laminates on the oil gas pipeline inside wall, can not cause because of dead weight or oil gas erodees and drops. Three sharp body has realized align to grid at oil gas pipeline central authorities, and the detection device body both can detect the sand grain bundle that is close to the oil gas pipeline inside wall like this, also can detect the sand grain bundle that is close to oil gas pipeline central authorities, just so can improve the detection precision to the inside sand content of oil gas pipeline, obtains more accurate testing result.
Further, the detection device body is made of intelligent materials.
In a further aspect, the smart material may be a light alloy, a polymer material, or a semiconductor material.
In the above scheme, the detection device body is made of an intelligent material, and the intelligent material is very sensitive to the change of the resistance value, so that the change of the resistance value of the detection device body can be caused when sand erodes on the surface of the detection device body. Adopt this body of intelligent material preparation detection device can let the resistance change that the detection device body produced more obvious to more easily detect.
In a further scheme, the positive wire extends outwards from the positive electrode of the detection device body and penetrates through the through hole to be electrically connected with the power supply.
In a further embodiment, the negative wire extends outward from the negative electrode of the detection device body and passes through the through hole to be electrically connected with the power supply.
In a further scheme, the detection device comprises an ammeter, and the ammeter is connected in series in a circuit formed by the detection device body and the power supply.
In the above scheme, the detection device body can be regarded as a resistance element, and the resistance element is provided with a positive electrode and a negative electrode, wherein the positive electrode is electrically connected with a power supply through a positive electrode wire, the negative electrode is electrically connected with the power supply through a negative electrode wire, and the power supply supplies power to the resistance element. The resistance element is made by intelligent material, when oil gas direct impact who carries sand to this resistance element, can produce the erosion to the resistance element, causes the resistance value of resistance element to change to make the current value in the circuit change, can detect the change of current value in the circuit through the ampere meter, calculate the change quantity of resistance element resistance through the change of current value, come the back-push out erosion volume that resistance element received through the change quantity of resistance element resistance, and then calculate the content of sand in the oil gas pipeline.
Drawings
FIG. 1 is a perspective view of an embodiment of the detection device of the present invention taken perpendicular to the plane of the paper.
FIG. 2 is a structural diagram of the detecting device according to the present invention.
The invention is further explained with reference to the drawings and the embodiments.
Detailed Description
Referring to fig. 1, the detection device of this embodiment includes electric wire and detection device body 1, and detection device body 1 sets up in the inside of oil gas pipeline 2, has seted up through-hole 3 that runs through the side table wall on the side table wall of oil gas pipeline 2, is provided with anodal and negative pole on detection device body 1, and the electric wire includes anodal line 4 and negative pole line 5, and anodal line 4 and anodal electric connection, negative pole line 5 and negative pole electric connection. The detection device also comprises a power supply and an ammeter. The positive wire 4 extends outwards from the positive pole of the detection device body 1, penetrates through the through hole 3 and is electrically connected with a power supply, and the negative wire 5 extends outwards from the negative pole of the detection device body 1, penetrates through the through hole 3 and is electrically connected with the power supply. The ammeter is connected in series in a circuit formed by the detection device body 1 and the power supply. Detection device body 1 closely laminates on the inside wall of oil gas pipeline 1, can prevent like this that detection device body 1 from taking place to drop because dead weight or oil gas impact. The detection device body 1 is arranged on the radial direction of the oil-gas pipeline 2, so that the full contact between the detection device body 1 and sand in oil gas can be furthest guaranteed, the detection area of the detection device body 1 is maximized, and a more accurate detection result is obtained.
In this embodiment, detection device body 1 includes at least one circular arc body, and the circular arc body is hugged closely on the inside wall of oil gas pipeline 2, plays the supporting role, prevents that detection device body 1 from taking place to drop because dead weight or oil gas impact. The detection device body 1 further comprises at least one straight line body arranged along the chord direction or the radial direction of the cross section of the oil-gas pipeline, and the straight line body is arranged in the center of the oil-gas pipeline 2, so that the detection area of the detection device body 1 can be increased, more accurate detection results are obtained, and the maintenance and the replacement of the oil-gas pipeline 2 are facilitated.
In this embodiment, the quantity of straight line body is more than two, and a plurality of straight line bodies evenly arrange along the circumference of detection device body, can make detection device body 1 can detect the sand grain bundle of oil gas pipeline 2 central authorities optional position department like this.
In this embodiment, the detecting device body 1 can be used as a resistance element, the resistance element is made of an intelligent material, and the intelligent material can be a light alloy, a polymer material or a semiconductor material. Because the intelligent material is very sensitive to the change of the resistance value, when sand in oil gas collides with the detection device body 1 to cause erosion on the surface of the detection device body 1, the resistance value of the detection device body 1 can be changed very obviously, so that the current value in the circuit can be changed very obviously, the pointer of the ammeter can be obviously deflected, and the detection personnel can observe conveniently.
Referring to fig. 2, the detecting device body 1 includes a first arc body 11, a second arc body 12, a first straight body 13, a third arc body 14, a second straight body 15, a fourth arc body 16, a fifth arc body 17, a sixth arc body 18, and a third straight body 19, the first arc body 11, the second arc body 12, the first straight body 13, the third arc body 14, the second straight body 15, the fourth arc body 16, the fifth arc body 17, the sixth arc body 18, and the third straight body 19 are sequentially connected end to end, and an included angle between axes of the three straight bodies is 120 °. First circular arc body 11, second circular arc body 12, fifth circular arc body 17, sixth circular arc body 18 wraps in the circumference along 2 inside walls of oil gas pipeline, first circular arc body 11, second circular arc body 12, fifth circular arc body 17, the cooperation between sixth circular arc body 18 and the 2 inside walls of oil gas pipeline is interference fit, whole detection device body 1 just can tightly laminate on the inside wall of oil gas pipeline 2 like this, prevent that detection device body 1 from taking place to drop because the impact of dead weight or oil gas.
In this embodiment, contained angle between the axis of arbitrary two in three straight line body 13, 15, 19 is 120, three straight line body has just realized align to grid at pipeline central authorities like this, the detection area of detection device body 1 has been increased, detection device body 1 both can detect the sand grain bundle that is close to 2 inside walls of oil and gas pipeline like this, also can detect the sand grain bundle that is close to 2 central authorities of oil and gas pipeline, just so can improve the detection precision to the inside sand content of oil and gas pipeline 2, obtain more accurate testing result, be convenient for the maintenance and the change of oil and gas pipeline 2.
In this embodiment, when laying oil gas pipeline 2, put into oil gas pipeline 2 with detection device body 1, positive polar line 4 negative pole line 5 together inside to set up at the assigned position, set up through-hole 3 that runs through oil gas pipeline 2 side table wall well on oil gas pipeline 2, pull out positive polar line 4 and negative pole line 5 from through-hole 3, then establish ties positive polar line 4 and negative pole line 5 and ampere meter and power in addition, just so accomplished whole detection device's installation.
While the present invention has been particularly shown and described with reference to the present embodiments and preferred versions thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The utility model provides a detection device for detecting sand content in oil gas pipeline, includes electric wire and detection device body, the detection device body sets up the inside of oil gas pipeline set up on the side table wall of oil gas pipeline set up the through-hole that runs through the side table wall be provided with anodal and negative pole on the detection device body, the electric wire includes anodal line and negative pole line, anodal line with anodal electricity is connected, the negative pole line with the negative pole electricity is connected, its characterized in that:
the detection device body comprises at least one arc body, the arc body is tightly attached to the inner side wall of the oil and gas pipeline, and the detection device body further comprises at least one linear body arranged along the chord direction or the radial direction of the cross section of the oil and gas pipeline;
the number of the linear bodies is more than two, and the plurality of linear bodies are uniformly arranged along the circumferential direction of the detection device body;
the detection device body comprises a first arc body, a second arc body, a first straight line body, a third arc body, a second straight line body, a fourth arc body, a fifth arc body, a sixth arc body and a third straight line body, wherein the first arc body, the second arc body, the first straight line body, the third arc body, the second straight line body, the fourth arc body, the fifth arc body, the sixth arc body and the third straight line body are sequentially connected end to end, and the included angle between the axes of the straight line bodies is 120 degrees.
2. The detection device according to claim 1, wherein:
the detection device body is made of intelligent materials.
3. The detection device according to claim 2, wherein:
the intelligent material can be light alloy, high polymer material or semiconductor material.
4. The detection device according to any one of claims 1 to 3, wherein:
the detection device further comprises a power supply, and the positive wire extends outwards from the positive pole of the detection device body and penetrates through the through hole to be electrically connected with the power supply.
5. The detection device according to claim 4, wherein:
the negative wire extends outwards from the negative electrode of the detection device body, penetrates through the through hole and is electrically connected with the power supply.
6. The detection device according to claim 5, wherein:
the detection device comprises an ammeter, and the ammeter is connected in series in a circuit formed by the detection device body and the power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910330921.7A CN110006955B (en) | 2019-04-23 | 2019-04-23 | Detection device for detecting sand content in oil and gas pipeline |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910330921.7A CN110006955B (en) | 2019-04-23 | 2019-04-23 | Detection device for detecting sand content in oil and gas pipeline |
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| CN110006955A CN110006955A (en) | 2019-07-12 |
| CN110006955B true CN110006955B (en) | 2021-10-01 |
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