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CN-121994556-A - Multilayer tubular column corrosion detection morphology simulation device and tester verification method

CN121994556ACN 121994556 ACN121994556 ACN 121994556ACN-121994556-A

Abstract

The invention discloses a multilayer pipe column corrosion detection morphology simulation device which comprises an oil sleeve component, a sleeve lifting component, a tester traction device and a control and data acquisition system, wherein the oil sleeve component is used for installing and fixing a pipe column to be detected, the sleeve lifting component is used for lifting the oil sleeve component and changing the inclination angle of the pipe column to be detected, the tester traction device is used for dragging a tester arranged in the pipe column to be detected, the control and data acquisition system is used for controlling the starting or stopping of the sleeve lifting component and the tester traction device, and the control and data acquisition system is also used for acquiring detection data of the tester. The corrosion detection work under different well deviation working conditions can be realized. The tester verification method adopts the device, can detect corrosion of the standard sample pipe column under different working conditions, and then compares the difference between the detection data and the standard data, so as to effectively judge whether the verified tester precision meets the requirement.

Inventors

  • SANG PENGFEI
  • LUO WEI
  • WANG CHUANLEI
  • ZHOU LANG
  • MA ZIHAN
  • LONG HAIQING

Assignees

  • 中国石油天然气股份有限公司

Dates

Publication Date
20260508
Application Date
20241107

Claims (10)

  1. 1. The multilayer tubular column corrosion detection morphology simulation device is characterized by comprising an oil sleeve assembly (1), a sleeve lifting assembly (2), tester traction equipment (3) and a control and data acquisition system (4), The oil casing assembly (1) is used for installing and fixing a tubular column (5) to be tested; the casing lifting assembly (2) is used for lifting the oil casing assembly (1) and changing the inclination angle of the pipe column (5) to be tested; the tester traction equipment (3) is used for traction of a tester (6) arranged in the pipe column (5) to be tested; the control and data acquisition system (4) is used for controlling the start-up or stop of the sleeve hoisting assembly (2) and the tester traction equipment (3), and the control and data acquisition system (4) is also used for acquiring detection data of the tester (6).
  2. 2. The multilayer pipe column corrosion detection morphology simulation device according to claim 1, wherein the oil casing assembly (1) comprises a rotating rack (11) and an oil casing box (12), the oil casing box (12) is fixedly installed on the rotating rack (11), and the pipe column (5) to be detected is arranged inside the oil casing box (12); the sleeve lifting assembly (2) is connected with the rotating rack (11), and the sleeve lifting assembly (2) drives the rotating rack (11) to rotate in a vertical plane.
  3. 3. The multilayer pipe column corrosion detection morphology simulation device according to claim 2, wherein one end of the rotating rack (11) is set as a rotating end, and the other end of the rotating rack (11) is a turning end; the overturning end is driven by the sleeve lifting assembly (2) to upwards overturn in a vertical plane around the rotating end, and the overturning angle range of the rotating end is 0-90 degrees.
  4. 4. A multi-layer pipe column corrosion detection morphology simulation device according to claim 3, wherein a traction rope (31) of the tester traction equipment (3) enters the pipe column (5) to be tested from the overturning end, and the traction rope (31) is connected with the tester (6) and drives the tester (6) to slide in the pipe column (5) to be tested; The turnover end is provided with a wire inlet fixed pulley (13), one end of a traction rope (31) is wound on a rotating shaft of a first electric winch (32), and the other end of the traction rope (31) enters the pipe column (5) to be detected along the axial direction of the pipe column (5) to be detected after passing through the wire inlet fixed pulley (13).
  5. 5. The multilayer pipe column corrosion detection morphology simulation device according to claim 2, wherein a plurality of centralizers (14) are arranged in an inner cavity of the oil casing box (12), one side of each centralizer (14) is fixed on the inner cavity wall of the oil casing box (12), the other side of each centralizer (14) is abutted against the outer wall of the pipe column (5) to be detected, and the pipe column (5) to be detected is coincident with the axis of the oil casing box (12).
  6. 6. A multi-layer pipe column corrosion detection morphology simulation device according to claim 3, wherein the sleeve hoisting assembly (2) comprises a ground support frame (21), a vertical support frame (22) and a top mounting frame (23), the ground support frame (21) is fixed on the ground, the vertical support frame (22) is vertically erected on the ground support frame (21), and the top mounting frame (23) is arranged at the top of the vertical support frame (22); Install second electrical winch (24) in top mounting bracket (23), twine in the pivot of second electrical winch (24) has lifting rope (25), the connector of lifting rope (25) with rotate rack (11) and be connected, just drive when lifting rope (25) are retrieved the upset of the upset end of rotating rack (11) upwards.
  7. 7. The multilayer pipe column corrosion detection morphology simulation device according to claim 6, wherein a hinged support (26) is arranged at the intersection of the ground support frame (21) and the vertical support frame (22), and the rotating end of the rotating bench (11) is hinged with the hinged support (26); The rotating bench (11) is turned over in the range of an included angle between the ground support frame (21) and the vertical support frame (22).
  8. 8. A method for checking a multilayer pipe column corrosion detection tester, which adopts the multilayer pipe column corrosion detection appearance simulation device according to any one of claims 1 to 7 to check the tester, and is characterized by comprising the following specific steps: S1, preparing a standard sample column, and arranging a plurality of defect points with different types and sizes on the standard sample column; S2, assembling a standard sample pipe column and a device, fixing the standard sample pipe column into an oil sleeve box (12), putting a tester (6) connected with a traction rope (31) into the standard sample pipe column, and simultaneously connecting a lifting rope (25) to a rotating bench (11); S3, adjusting the inclination angle of a standard sample pipe column, and starting a second electric winch (24) to drive the overturning end of the rotating rack (11) to overturn upwards to a detection required angle; s4, detecting corrosion defects, collecting data, starting a first electric winch (32) to drive a tester (6) to move to a defect point for defect detection, and transmitting the detection data to a control and data acquisition system (4) for processing; And S5, carrying out data analysis on the detection data information and recording.
  9. 9. The method for checking the multi-layer pipe column corrosion detection tester according to claim 1, wherein in the step S1, a plurality of defect points are arranged at equal intervals on a standard sample pipe column, position information and size information of each defect point are recorded to form defect standard data, in the step S5, the detected defect point data is compared with the defect standard data in the step 1, if the difference between the detected defect point data and the defect standard data is not within an error allowable range, the checked tester is inaccurate, and if the difference between the detected defect point data and the defect standard data is within the error allowable range, the checked tester is accurate.
  10. 10. The method for checking the corrosion detection tester of the multi-layer pipe column according to claim 1, wherein after the standard sample pipe column is adjusted to different inclination angle states in the step S3, the step S4 and the step S5 are completed, so that the accuracy of the tester under the different inclination angle states is checked; After the calibration of one tester is completed, another tester can be replaced in the step S2, and the steps S3-S5 are executed to complete the calibration of the accuracy of the other tester.

Description

Multilayer tubular column corrosion detection morphology simulation device and tester verification method Technical Field The invention relates to the technical field of pipe column corrosion detection, in particular to a multilayer pipe column corrosion detection morphology simulation device and a tester verification method. Background With the continuous deep development work of oil gas, the damage condition of oil casing is more and more complex, and high-precision oil casing damage detection has become one of key technologies for improving oil gas recovery efficiency. At present, technologies such as multi-arm borehole diameter imaging, magnetic wall thickness, multi-layer tubular column imaging, magnetic focusing and the like are generally used in the industry to detect oil casing defects in the well, and due to the existence of a well inclination angle, a logging instrument has an eccentric phenomenon in the underground detection process, and detection data often have a certain deviation. Meanwhile, as the interpretation software of each detection data is not uniform, a certain gap exists between the detection result and the real corrosion morphology, and in order to verify the detection precision of the logging instrument, a multi-layer pipe column corrosion detection verification simulation experiment device is needed to achieve the purpose. Disclosure of Invention The invention aims to provide a multilayer tubular column corrosion detection morphology simulation device and a tester verification method, wherein the morphology simulation device can simulate the multilayer oil casing corrosion morphology on the ground, so that complex underground operation is effectively avoided, and meanwhile, the tester verification method can realize verification work of different testers on the basis of effectively utilizing the morphology simulation device, so that the precision of the testers is verified. The invention is realized by the following technical scheme: The multilayer pipe column corrosion detection morphology simulation device comprises an oil sleeve component, a sleeve lifting component, a tester traction device and a control and data acquisition system, wherein the oil sleeve component is used for installing and fixing a pipe column to be detected, the sleeve lifting component is used for lifting the oil sleeve component and changing the inclination angle of the pipe column to be detected, the tester traction device is used for dragging a tester arranged in the pipe column to be detected, the control and data acquisition system is used for controlling the starting or stopping of the sleeve lifting component and the tester traction device, and the control and data acquisition system is also used for acquiring detection data of the tester. In order to solve the technical problems and achieve the corresponding technical effects, the morphology simulation device drives the oil sleeve assembly through the sleeve lifting assembly to change the inclination angle of the pipe column to be tested, so that different well deviation working conditions are simulated on the ground, and corrosion detection work under different well deviation working conditions can be achieved. The technical scheme is as follows: The oil sleeve assembly comprises a rotating rack and an oil sleeve box, the oil sleeve box is fixedly arranged on the rotating rack, and the pipe column to be tested is arranged inside the oil sleeve box; The sleeve lifting assembly is connected with the rotating rack, and drives the rotating rack to rotate in a vertical plane. Further, one end of the rotating rack is set to be a rotating end, and the other end of the rotating rack is a turning end; The overturning end is driven by the sleeve hoisting assembly to upwards overturn in a vertical plane around the rotating end, and the overturning angle range of the rotating end is 0-90 degrees. Further, a traction rope of the tester traction equipment enters the pipe column to be tested from the overturning end, is connected with the tester and drives the tester to slide in the pipe column to be tested; The turning end is provided with a wire inlet fixed pulley, one end of the traction rope is wound on a rotating shaft of the first electric winch, and the other end of the traction rope enters the pipe column to be tested along the axial direction of the pipe column to be tested after passing through the wire inlet fixed pulley. Further, the inner cavity of the oil sleeve box is provided with a plurality of centralizers, one side of each centralizer is fixed on the inner cavity wall of the oil sleeve box, the other side of each centralizer is propped against the outer wall of the pipe column to be tested, and the pipe column to be tested is overlapped with the axis of the oil sleeve box. The sleeve lifting assembly comprises a ground support frame, a vertical support frame and a top mounting frame, wherein the ground support frame is fixed on the ground, the