CN116067310A - Oil and gas pipeline inner diameter detection device and method - Google Patents
Oil and gas pipeline inner diameter detection device and method Download PDFInfo
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- CN116067310A CN116067310A CN202310354357.9A CN202310354357A CN116067310A CN 116067310 A CN116067310 A CN 116067310A CN 202310354357 A CN202310354357 A CN 202310354357A CN 116067310 A CN116067310 A CN 116067310A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B13/00—Measuring arrangements characterised by the use of fluids
- G01B13/08—Measuring arrangements characterised by the use of fluids for measuring diameters
- G01B13/10—Measuring arrangements characterised by the use of fluids for measuring diameters internal diameters
Abstract
The invention provides an oil and gas pipeline inner diameter detection device and method, and belongs to the technical field of pipeline detection; the oil gas pipeline internal diameter detection device includes: the gasbag is installed between roof and rear end casing, and the connecting axle is located the inside centre of gasbag, and connecting axle connects roof and rear end casing, and air pressure adjusting device installs in the rear end casing, and air pressure adjusting device and gasbag intercommunication, and the response area is encircleed and is installed in the gasbag outside, and the internal pressure inductor is installed inside the gasbag, and the outside at the rear end casing is installed to the outer pressure inductor, and the terminal processor is installed inside the rear end casing. The top plate is connected with the rear end shell through a connecting shaft, so that the air bag can be protected in the axial direction, the sensor is used for recording the pressure intensity inside and outside the air bag, and the pressure difference inside and outside the air bag is kept unchanged through the air pressure adjusting device; the induction belt can sense the deformation condition of the air bag in real time, so that the data of the reduced inner diameter of the pipeline can be accurately calculated, and the high-efficiency and high-precision detection of the inner diameter of the pipeline is integrally realized.
Description
Technical Field
The invention relates to the field of pipeline detection, in particular to an oil and gas pipeline inner diameter detection device and method.
Background
For long-distance oil and gas pipelines, the actual inner diameter of the pipeline in the conveying process is reduced due to the reasons of deformation of the pipeline body, wax precipitation of crude oil, growth of hydrate, aggregation of impurities in the pipeline and the like, so that the pipeline conveying efficiency is affected, and the pipeline is blocked when serious. Because the pipeline operation manager cannot monitor the pipeline inner diameter change data, the pipeline average inner diameter value of a section of pipeline can be calculated only approximately according to the pipeline process operation data, the calculation result often does not accord with the actual result, and the on-site operation maintenance cannot be provided with targeted suggestions.
Because specific data of the inner diameter of the pipeline cannot be obtained, the pipeline pigs with different specifications can be sent into the pipeline only empirically in the field during pipeline cleaning operation. Once the inner diameter of the pipe cleaner exceeds the actual inner diameter of the pipeline by a certain value, the pipe cleaner is blocked, and the pipeline maintenance and repair operation is seriously influenced.
It is therefore important to perform conventional inside diameter detection for oil and gas pipelines. However, because the pipeline mileage is longer, the inner diameter of the pipeline is greatly changed in a certain range due to the influence of factors such as a wax precipitation layer, and the like, and the inner diameter detection of the oil gas long-distance pipeline in the running process cannot be carried out by the existing detection technology.
The existing detection device needs to cut off the internal circulation of the pipeline and then carry out measurement operation, and can not solve the problem of inner diameter detection in the operation process of the oil and gas long-distance pipeline.
In order to improve the detection efficiency and accuracy, there is a need for an oil and gas pipeline inner diameter detection device and method with simple structure, convenient use, high efficiency and good accuracy.
Disclosure of Invention
In order to achieve the above purpose, one of the purposes of the present invention is to provide an oil and gas pipeline inner diameter detection device, which has the advantages of simple structure, high efficiency, good precision and the like.
The technical scheme for solving the technical problems is as follows:
an oil gas pipeline inner diameter detection device comprises,
the device comprises a top plate, a rear end shell, an air bag, a connecting shaft, an air pressure adjusting device, an induction belt, an outer pressure sensor, an inner pressure sensor and a terminal processor;
the air bag is installed between the top plate and the rear end shell, the connecting shaft is located in the middle of the inside of the air bag, the connecting shaft is connected with the top plate and the rear end shell, the air pressure adjusting device is installed in the rear end shell and communicated with the air bag, the induction belt is installed on the outer side of the air bag in a surrounding mode, the internal pressure sensor is installed inside the air bag, the external pressure sensor is installed on the outer side of the rear end shell, and the terminal processor is installed inside the rear end shell.
The beneficial effects of the invention are as follows: the whole device is placed in the oil gas pipeline and moves along with oil gas in the pipeline, the top plate and the rear end shell are connected through the connecting shaft, the structure can better protect the air bag in the axial direction, the outer pressure sensor and the inner pressure sensor are used for recording the pressure intensity inside and outside the air bag, and the pressure difference inside and outside the air bag is kept unchanged through the air pressure adjusting device, so that the air bag can not be extruded and exploded when the inner diameter of the pipeline is narrowed, and the air bag can be ensured to pass through a blocking point smoothly through shrinkage; the induction belt is installed on the radial direction of the air bag in a surrounding mode, and then the deformation condition of the air bag can be sensed in real time, so that the data of the reduced inner diameter of the pipeline can be accurately measured and calculated, the operation of each sensor is realized through terminal processing, and the high-efficiency and high-precision detection of the inner diameter of the pipeline is realized as a whole.
Based on the technical scheme, the invention can also be improved as follows:
further, the air pressure adjusting device comprises a gas storage cavity containing high-pressure gas and a gas discharge cavity for discharging the gas, the gas storage cavity is communicated with the air bag through a first adjusting valve, one end of the gas discharge cavity is communicated with the air bag through a second adjusting valve, and the other end of the gas discharge cavity is communicated with the outside.
The beneficial effects of adopting the further scheme are as follows: the gas storage cavity stores high-pressure gas, the gas discharge cavity is used for discharging gas in the air bag, the gas can be released into the air bag through the first regulating valve to raise the pressure in the air bag, and the gas in the air bag can be released out through the second regulating valve to lower the pressure in the air bag; the gas storage cavity and the gas discharge cavity can realize that the gas bag is in a dynamic size change along with the change of the inner diameter, ensure that the gas bag can smoothly pass through the inner diameters of the pipelines, and is in an optimal expansion state at any time so as to meet the requirement that the sensing belt records the change value of the inner diameter.
Further, the induction belts are two, and are distributed on two sides of the middle of the air bag at intervals.
The beneficial effects of adopting the further scheme are as follows: the two induction bands can be repeatedly measured and calculated twice, so that the accuracy of the detection process is improved.
Further, the induction belt comprises a plurality of position induction chips capable of mutually inducing, and the plurality of position induction chips are uniformly distributed outside the air bag at annular intervals.
The beneficial effects of adopting the further scheme are as follows: the plurality of position sensing chips are annularly distributed outside the air bag, and the distance between the position sensing chips is changed through the change of the air bag, so that the change of the whole air bag in the radial direction is recorded, and the detection of the inner diameter of the pipeline is realized.
Further, the oil gas pipeline inner diameter detection device further comprises a positioning device, and the positioning device is installed inside the top plate.
The beneficial effects of adopting the further scheme are as follows: the position of the oil and gas pipeline inner diameter detection device can be positioned in real time through the positioning device, and meanwhile, the complete change data of the pipeline inner diameter can be obtained by combining the data of the induction belt, so that the data of integral detection is perfected and optimized.
Further, the terminal processor is configured to collect and process operation information of the air pressure regulating device, the sensing belt, the external pressure sensor, and the internal pressure sensor.
The beneficial effects of adopting the further scheme are as follows: the terminal processor is used for collecting and processing the operation of each sensor and the air pressure regulating device, and recording of data is ensured.
The second object of the invention is to provide a method for detecting the inner diameter of an oil and gas pipeline, which comprises the following steps:
s1, when an oil gas pipeline inner diameter detection device runs in a pipeline, an outer pressure sensor collects real-time external pressure values of an air bag, and an inner pressure sensor collects real-time internal pressure values of the air bag;
s2, the terminal processor acquires a preset differential pressure numerical range;
s3, the terminal processor calculates a real-time differential pressure value according to the real-time external pressure value and the real-time internal pressure value;
s4, the terminal processor judges whether the real-time differential pressure value is in the preset differential pressure value range according to the real-time differential pressure value and the preset differential pressure value range;
s5, when the difference value between the real-time external pressure and the real-time internal pressure is not in the preset differential pressure numerical range, the air pressure regulating device regulates the internal pressure of the air bag until the real-time differential pressure numerical value is in the preset differential pressure numerical range;
s6, the induction belt acquires deformation information and position information of the air bag in real time;
and S7, the terminal processor stores the deformation information and the position information.
The beneficial effects of adopting the further scheme are as follows: when the inner diameter detection device moves in the pipeline to pass through the blocking point, the air bag is compressed and deformed due to the fact that the inner diameter of the pipeline is reduced, the induction belt deforms along with the air bag, deformation quantity is recorded at the same time, at the moment, the inner pressure sensor is enlarged, the real-time pressure difference value exceeds the set pressure difference value range, and in order to prevent the air bag from being broken under high air pressure, the air pressure regulating device regulates and recovers the pressure intensity inside the air bag; otherwise, after passing through the blocking point, the air sac is enlarged, the internal pressure is reduced, and the air pressure regulating device again regulates and restores the internal pressure of the air sac;
according to the method, on one hand, the change of the inner diameter can be directly calculated according to the radial change of the air bag, on the other hand, the pressure difference numerical range is set, and the pressure difference numerical range is regulated by the air pressure regulating device to be in a stable state, so that the air bag is ensured to be changed in the regulating range, the air bag is prevented from being extruded and broken or clamped at a blocking point, the original size of the air bag is restored after the air bag passes through the blocking point, the detection is continuously completed, the whole method is ingenious in design, and the detection can be rapidly completed without affecting the oil gas passing in a pipe.
Further, step S4 includes, after: and when the difference value between the real-time external pressure and the real-time internal pressure is within the preset differential pressure value range, returning to the step S1.
The beneficial effects of adopting the further scheme are as follows: and when the real-time differential pressure value is restored to the set differential pressure value range, continuing to carry out the step S1 to ensure the completeness and accuracy of data recording.
Further, the oil gas pipeline inner diameter detection device operates in the pipeline by utilizing the pushing action of the front-back pressure difference in the pipeline.
The beneficial effects of adopting the further scheme are as follows: the front-back pressure difference is generated through oil gas movement in the pipeline, so that the whole device is ensured not to need extra energy to carry out displacement movement, the structure of the device is simplified, and the measurement operation is optimized.
Drawings
FIG. 1 is a schematic diagram of the oil and gas pipeline inner diameter detection device;
FIG. 2 is a flow chart of the method for detecting the inner diameter of an oil and gas pipeline according to the invention.
In the drawings, the list of components represented by the various numbers is as follows:
1. a top plate; 2. a rear end housing; 3. an air bag; 4. a connecting shaft; 5. an air pressure adjusting device; 51. a gas storage chamber; 52. a gas discharge chamber; 6. an induction belt; 7. an external pressure sensor; 8. an internal pressure sensor.
Detailed Description
The present invention will be further described in detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present invention more apparent, and is not intended to limit the scope of the present invention.
Example 1: as shown in fig. 1 and 2, an embodiment of an oil and gas pipeline inner diameter detection device disclosed by the invention includes:
the air bag type air conditioner comprises a top plate 1, a rear end shell 2, an air bag 3, a connecting shaft 4, an air pressure adjusting device 5, an induction belt 6, an outer pressure sensor 7, an inner pressure sensor 8 and a terminal processor;
the gasbag 3 is installed between roof 1 and rear end casing 2, and connecting axle 4 is located the inside centre of gasbag 3, and connecting axle 4 connects roof 1 and rear end casing 2, and air pressure adjusting device 5 installs in rear end casing 2, and air pressure adjusting device 5 and gasbag 3 intercommunication, and response area 6 encircles and installs in the gasbag 3 outside, and internal pressure inductor 8 installs inside gasbag 3, and outer pressure inductor 7 installs in the outside of rear end casing 2, and the terminal processor is installed inside rear end casing 2.
Specifically, the air bag 3 is installed between the top plate 1 and the rear end shell 2, the connecting shaft 4 is located inside the air bag 3 and is connected with and supports the top plate 1 and the rear end shell 2, the terminal processor is installed inside the rear end shell 2 and is used for processing and recording operation between all structures, when the whole device is placed in an oil gas pipeline and moves along with oil gas, the outer pressure sensor 7 measures and calculates the external pressure intensity, the inner pressure sensor 8 measures and calculates the internal pressure intensity, the pressure intensity of the two positions is regulated by the air pressure regulating device 5 to be in a difference range, when the inner diameter is blocked and becomes smaller, the air bag 3 is blocked, at the moment, the air bag 3 is extruded under the pushing of the rear end oil gas, the pressure intensity measured by the inner pressure sensor 8 is increased, at the moment, the air pressure regulating device 5 releases the inner gas of the air bag 3, the pressure intensity becomes and the external pressure intensity is kept in the difference range, the air bag 3 is changed along with the change of the air bag 3 when the air bag 3 passes through a blocking point, and the change condition data of the inner diameter of the pipe wall wax layer can be obtained by the sensing belt 6; after passing, the air bag 3 is in a contracted state, the internal pressure of the air bag is reduced, and at the moment, the air pressure regulating device 5 conveys air to the air bag 3 again, the pressure difference between the air bag and the outside is recovered, and the air bag 3 is kept in a state of being tightly attached to the inner wall of the pipeline at the moment.
It should be understood that the top plate 1 can protect the air bag 3 in the oil gas pipeline along with the oil gas movement, and the connecting shaft 4 connects the top plate 1 and the rear end shell 2, so that the overall structural strength is improved, and the damage is not easy to damage during the movement in the pipe; the air pressure adjusting device 5 adjusts the pressure inside the air bag 3 to enable the air bag 3 to cling to the inner wall of the pipeline at any time, so that accuracy of detection data is achieved; the outer pressure sensor 7 and the inner pressure sensor 8 provide information for the air pressure regulating device 5 through the change of the inner diameter and the pushing of oil gas in the pipeline, so as to ensure the change of the air bag 3; the induction belt 6 changes along with the shape change of the air bag 3, so that change data of the inner diameter of the pipeline can be obtained by recording the change data, and the whole device is simple in structure, wide in applicability and high in detection efficiency and precision.
Preferably, the airbag 3 has a cylindrical structure, and the sensor strip 6 is installed at the radially outer side thereof.
Preferably, the radial maximum area of the top plate 1 and the rear end housing 2 is smaller than the radial area of the airbag 3.
Preferably, the connecting shaft 4 can be formed by hinging a plurality of sections of connecting rods, so that the connecting shaft 4 can be bent slightly, and the device can smoothly move in a bent pipeline.
Example 2, based on example 1: as shown in fig. 1, the air pressure adjusting device 5 includes a gas storage chamber 51 containing high-pressure gas and a gas discharge chamber 52 for discharging the gas, the gas storage chamber 51 being communicated with the air bag 3 through a first adjusting valve, one end of the gas discharge chamber 52 being communicated with the air bag 3 through a second adjusting valve, and the other end being communicated with the outside.
It will be appreciated that as the pressure within bladder 3 increases, the second regulator valve opens gas vent chamber 52, releasing gas within bladder 3 to reduce the pressure, effecting passage of bladder 3 through the narrow pipe inner diameter; when passing through the narrow inner diameter of the pipe, the pressure inside the pipe becomes small because the pipe is not squeezed, and at this time, the first regulating valve opens the gas storage chamber 51, releases gas into the balloon 3, and restores the pressure inside the balloon.
Example 3, based on example 1: as shown in fig. 1, the inductive bands 6 are two, and are distributed at intervals on two sides of the middle of the air bag 3.
It will be appreciated that by means of the two sensor strips 6 it is possible to mutually verify the change in the inner diameter of the pipe, improving the accuracy of the measurement.
Preferably, the sensing strip 6 can also be a plurality of strips, further improving the accuracy of the measurement.
Example 4, based on example 3: as shown in fig. 1, the sensing belt 6 includes a plurality of position sensing chips capable of sensing each other, and the plurality of position sensing chips are uniformly distributed outside the airbag 3 in a ring shape around the interval.
It should be understood that the sensing belt 6 is formed by encircling the air bag 3 by a plurality of position sensing chips, when the air bag 3 changes along with the inner diameter of the pipeline, the position relation of the plurality of position sensing chips also changes, and the blocking thickness condition of the inner diameter of the pipeline can be further determined by collecting the change quantity; the data collection by using a plurality of position sensing chips is more accurate and rapid.
Example 5, based on example 1: as shown in fig. 1, the oil and gas pipeline inner diameter detection device further comprises a positioning device, and the positioning device is installed inside the top plate 1.
It should be understood that the positioner is used for monitoring the motion position of oil gas pipeline internal diameter monitoring devices in the pipeline, combines the pipeline internal diameter change condition of induction zone 6 record again, can obtain clear pipeline internal diameter position and change condition, improves the convenience of post treatment.
Example 6, based on example 1: as shown in fig. 1, the terminal processor is used to collect and process operation information of the air pressure regulating device 5, the sensing strip 6, the external pressure sensor 7 and the internal pressure sensor 8.
It should be appreciated that the operation of each sensor may be collected and processed by the terminal processor to facilitate later data reading.
Example 7: as shown in fig. 2, a method for detecting the inner diameter of an oil and gas pipeline comprises the following steps:
s1, when an oil gas pipeline inner diameter detection device runs in a pipeline, an outer pressure sensor 7 collects real-time external pressure values of an air bag 3, and an inner pressure sensor 8 collects real-time internal pressure values of the air bag 3;
s2, the terminal processor acquires a preset differential pressure numerical range;
s3, the terminal processor calculates a real-time differential pressure value according to the real-time external pressure value and the real-time internal pressure value;
s4, the terminal processor judges whether the real-time differential pressure value is in the preset differential pressure value range according to the real-time differential pressure value and the preset differential pressure value range;
s5, when the difference value between the real-time external pressure and the real-time internal pressure is not in the preset differential pressure numerical range, the air pressure regulating device 5 regulates the internal pressure of the air bag 3 until the real-time differential pressure numerical value is in the preset differential pressure numerical range;
s6, the induction belt 6 acquires deformation information and position information of the air bag 3 in real time;
and S7, the terminal processor stores the deformation information and the position information.
The step S4 is followed by: and when the difference value between the real-time external pressure and the real-time internal pressure is within the preset differential pressure value range, returning to the step S1.
The oil gas pipeline inner diameter detection device operates in the pipeline by utilizing the pushing action of the front-back pressure difference in the pipeline.
The inner diameter of the pipeline is 380mm aiming at a certain crude oil long-distance pipeline, the problem that the pipeline conveying efficiency is gradually reduced recently exists, the paraffin precipitation condition of the inner wall of the pipeline needs to be analyzed, and the oil-gas pipeline inner diameter detection device and method can be used for the following detection and analysis:
firstly, an oil-gas pipeline inner diameter detection device is sent to an upstream station of a crude oil long-distance pipeline, and the device is pushed to run in the pipeline by utilizing front-back pressure difference in the pipeline;
secondly, when the oil gas pipeline inner diameter detection device runs in a pipe, the pressure difference value range delta P of the outer pressure sensor 7 and the inner pressure sensor 8 can be preset, the stability of delta P is maintained by adjusting the air pressure adjusting device 5, the air bag 3 is ensured to be clung to the inner wall of the pipe at the moment, and the thickness condition of the inner diameter wax deposition layer is recorded by the sensing belt 6;
thirdly, extracting and analyzing operation data by using an oil gas pipeline inner diameter detection device recovered at a station yard at the downstream of the crude oil long-distance pipeline to obtain inner diameter data of the section of pipeline; according to the inner diameter detection data, the actual inner diameter average value of the pipeline is detected to be 340mm, so that the thickness of a wax precipitation layer of the pipeline wall is calculated to be 20mm, and then a pipeline cleaning operation scheme is specially compiled, and pipeline cleaning operation is performed;
finally, after the pipe cleaning operation is finished, an oil gas pipeline inner diameter detection device is sent into the pipeline, and the fact that the average value of the actual inner diameter of the pipeline is 376mm is detected, so that the pipe cleaning operation is shown to remove most of wax precipitation on the inner wall of the pipeline, and the problem of reduction of the pipe conveying efficiency is solved.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (9)
1. An oil and gas pipeline internal diameter detection device, characterized by comprising:
the device comprises a top plate (1), a rear end shell (2), an air bag (3), a connecting shaft (4), an air pressure adjusting device (5), an induction belt (6), an outer pressure sensor (7), an inner pressure sensor (8) and a terminal processor;
the air bag (3) is installed between the top plate (1) and the rear end shell (2), the connecting shaft (4) is located in the middle of the inside of the air bag (3), the connecting shaft (4) is connected with the top plate (1) and the rear end shell (2), the air pressure adjusting device (5) is installed in the rear end shell (2), the air pressure adjusting device (5) is communicated with the air bag (3), the induction belt (6) is installed around the outside of the air bag (3), the internal pressure inductor (8) is installed inside the air bag (3), the external pressure inductor (7) is installed outside the rear end shell (2), and the terminal processor is installed inside the rear end shell (2).
2. The oil and gas pipeline inner diameter detection device according to claim 1, wherein the air pressure regulating device (5) comprises a gas storage cavity (51) containing high-pressure gas and a gas discharge cavity (52) for discharging the gas, the gas storage cavity (51) is communicated with the air bag (3) through a first regulating valve, one end of the gas discharge cavity (52) is communicated with the air bag (3) through a second regulating valve, and the other end of the gas discharge cavity is communicated with the outside.
3. The oil and gas pipeline inner diameter detection device according to claim 1, wherein the number of the induction belts (6) is two, and the induction belts are distributed on two sides in the middle of the air bag (3) at intervals.
4. A device for detecting the inner diameter of an oil and gas pipeline according to claim 3, wherein the induction belt (6) comprises a plurality of position induction chips capable of mutually inducing, and the plurality of position induction chips are uniformly distributed outside the air bag (3) at annular intervals.
5. An oil and gas pipeline inner diameter detection device according to claim 1, further comprising a positioning device, which is mounted inside the top plate (1).
6. The oil and gas pipeline inner diameter detection device according to claim 1, characterized in that the terminal processor is adapted to collect and process operational information of the air pressure regulating device (5), the sensor strip (6), the outer pressure sensor (7) and the inner pressure sensor (8).
7. An oil and gas pipeline inner diameter detection method, which is characterized in that based on the oil and gas pipeline inner diameter detection device according to any one of the claims 1 to 6, the oil and gas pipeline inner diameter detection method comprises the following steps:
s1, when an oil gas pipeline inner diameter detection device runs in a pipeline, an outer pressure sensor (7) collects real-time external pressure values of an air bag (3), and an inner pressure sensor (8) collects real-time internal pressure values of the air bag (3);
s2, the terminal processor acquires a preset differential pressure numerical range;
s3, the terminal processor calculates a real-time differential pressure value according to the real-time external pressure value and the real-time internal pressure value;
s4, the terminal processor judges whether the real-time differential pressure value is in the preset differential pressure value range according to the real-time differential pressure value and the preset differential pressure value range;
s5, when the difference value between the real-time external pressure and the real-time internal pressure is not in the preset differential pressure numerical range, the air pressure regulating device (5) regulates the internal pressure of the air bag (3) until the real-time differential pressure numerical value is in the preset differential pressure numerical range;
s6, the sensing belt (6) acquires deformation information and position information of the air bag (3) in real time;
and S7, the terminal processor stores the deformation information and the position information.
8. The method for detecting the inner diameter of an oil and gas pipeline according to claim 7, wherein after the step S4, the method comprises: and when the difference value between the real-time external pressure and the real-time internal pressure is within the preset differential pressure value range, returning to the step S1.
9. The method for detecting the inner diameter of an oil and gas pipeline according to claim 7, wherein the oil and gas pipeline inner diameter detecting device operates in the pipeline by pushing action of a front-rear pressure difference in the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310354357.9A CN116067310A (en) | 2023-04-06 | 2023-04-06 | Oil and gas pipeline inner diameter detection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310354357.9A CN116067310A (en) | 2023-04-06 | 2023-04-06 | Oil and gas pipeline inner diameter detection device and method |
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| FR2196066A5 (en) * | 1972-08-09 | 1974-03-08 | Doris Dev Richesse Sous Marine | |
| US4000655A (en) * | 1974-05-08 | 1977-01-04 | Underground Location Services Limited | Measuring devices for bores and ducts |
| CA2218029A1 (en) * | 1997-10-10 | 1999-04-10 | John Nenniger | Method and apparatus for measuring deposits in pipelines |
| CN206037970U (en) * | 2016-09-10 | 2017-03-22 | 新疆石油工程建设有限责任公司 | Pipeline is calibrated and is used inflatable airbag device |
| CN209489734U (en) * | 2018-07-09 | 2019-10-15 | 广东景龙建设集团有限公司 | A kind of furniture of automatic inflating |
| CN111618052A (en) * | 2020-05-09 | 2020-09-04 | 煤科集团杭州环保研究院有限公司 | Pipe cleaning and descaling device and descaling method |
| JP2021071421A (en) * | 2019-10-31 | 2021-05-06 | ミクロン精密株式会社 | Size measurement system |
| CN213587611U (en) * | 2020-07-22 | 2021-07-02 | 张家祥 | Self-adaptive pressure air bag handbag |
| CN215240585U (en) * | 2021-01-20 | 2021-12-21 | 潍柴动力股份有限公司 | Disassembling tool |
| CN115166142A (en) * | 2022-06-09 | 2022-10-11 | 中国建筑第七工程局有限公司 | Test device and test method for simulating tunnel filling air bag plugging working mechanism |
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2196066A5 (en) * | 1972-08-09 | 1974-03-08 | Doris Dev Richesse Sous Marine | |
| US4000655A (en) * | 1974-05-08 | 1977-01-04 | Underground Location Services Limited | Measuring devices for bores and ducts |
| CA2218029A1 (en) * | 1997-10-10 | 1999-04-10 | John Nenniger | Method and apparatus for measuring deposits in pipelines |
| CN206037970U (en) * | 2016-09-10 | 2017-03-22 | 新疆石油工程建设有限责任公司 | Pipeline is calibrated and is used inflatable airbag device |
| CN209489734U (en) * | 2018-07-09 | 2019-10-15 | 广东景龙建设集团有限公司 | A kind of furniture of automatic inflating |
| JP2021071421A (en) * | 2019-10-31 | 2021-05-06 | ミクロン精密株式会社 | Size measurement system |
| CN111618052A (en) * | 2020-05-09 | 2020-09-04 | 煤科集团杭州环保研究院有限公司 | Pipe cleaning and descaling device and descaling method |
| CN213587611U (en) * | 2020-07-22 | 2021-07-02 | 张家祥 | Self-adaptive pressure air bag handbag |
| CN215240585U (en) * | 2021-01-20 | 2021-12-21 | 潍柴动力股份有限公司 | Disassembling tool |
| CN115166142A (en) * | 2022-06-09 | 2022-10-11 | 中国建筑第七工程局有限公司 | Test device and test method for simulating tunnel filling air bag plugging working mechanism |
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