Full-automatic drilling tool wellhead detection device

Abstract

The invention relates to a full-automatic drilling tool wellhead detection device which comprises a shell structure. The supporting structure is movably arranged in the shell structure; comprising an inner bottom plate and an inner top plate, arc notches are formed in the inner bottom plate and the inner top plate, and an embracing ring structure is hinged between the inner bottom plate and the inner top plate; when the embracing ring structure is closed, the inner ring of the embracing ring structure and the arc notch can enclose a detection circumference corresponding to the shell via hole; the detection structure comprises a plurality of magnetic memory sensors, each magnetic memory sensor is arranged in a sensor box, and each sensor box is attached to the surface of the drilling tool in real time; each magnetic memory sensor is used for detecting and collecting a magnetic memory characteristic signal of the drilling tool; a driving structure; and a control unit. According to the invention, nondestructive inspection can be carried out on the lifted drilling tool at the wellhead, magnetic memory characteristic signals of the drilling tool are acquired through the magnetic memory sensor, and inspection and positioning are carried out on the damaged part of the drilling tool, so that time and cost losses caused by transportation are greatly reduced, and the drilling efficiency is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of nondestructive testing, and in particular to a fully automatic drilling tool wellhead testing device. Background Art

[0002] During drilling operations, the drill string will vibrate and wear against the well wall under the action of the combined load, and will also corrode due to the working environment, which will cause damage to the drill string during the operation, and in severe cases, the drill string may break. Once the drill string system breaks, it takes expensive time and economic costs to resume production. Therefore, it is necessary to detect the defects of the drill string in a timely and efficient manner to prevent drill string breakage accidents. Traditional detection methods require the drill pipe to be disassembled and transported to the base for detection, which not only causes economic losses, but also has low efficiency and may affect the efficiency of drilling. In order to solve this problem, a device that can directly perform drill string detection at the wellhead is needed to collect magnetic signals on the surface of the drill string during the process of pulling out of the drill string, and to quickly identify surface defects of the drill pipe.

[0003] The currently commonly used non-destructive testing of drill pipes is basically to place the drill pipes at the well site or transport them to the base station for operation after they are pulled out of the well. This testing method requires the use of a large number of vehicles to transport them to a special testing site, and the relative movement between the drill pipe and the testing equipment needs to be re-established to achieve full coverage testing. If the testing is carried out during the process of pulling out the drill pipe, it can not only save the subsequent complex testing process, but also make it easier to automate and save testing costs.

[0004] Therefore, the inventor, relying on many years of experience and practice in related industries, proposes a fully automatic drilling tool wellhead detection device to overcome the defects of the prior art and meet the needs of implementing detection during the drilling process. Summary of the invention

[0005] The purpose of the present invention is to provide a fully automatic drilling tool wellhead detection device, which overcomes the problems of time and cost loss caused by disassembling the drill pipe and transporting it to the base for detection in the prior art. The present invention can perform non-destructive testing on the raised drilling tool at the wellhead, collect the magnetic memory characteristic signal of the drilling tool through a magnetic memory sensor, and detect and locate the damaged part of the drilling tool by analyzing the change of the magnetic memory characteristic signal, thereby providing a basis for early flaw detection of the drilling tool; greatly reducing the time and cost loss caused by transportation, and effectively improving the drilling efficiency.

[0006] The object of the present invention is achieved by a fully automatic drilling tool wellhead detection device, comprising:

[0007] A shell structure, used to be located on a wellhead platform, wherein a shell through hole for passing a drilling tool is provided on the shell structure;

[0008] The supporting structure is movably arranged in the outer shell structure; it includes an inner bottom plate and an inner top plate arranged at an interval up and down, and the inner bottom plate and the inner top plate are both provided with arc notches inward from the first end, and a ring structure that can swing open and close is hingedly arranged between the inner bottom plate and the inner top plate; when the ring structure is closed, the inner ring of the ring structure and the arc notch can enclose a detection circumference corresponding to the through hole of the outer shell;

[0009] The detection structure comprises a plurality of magnetic memory sensors arranged at intervals along the detection circumference, each of the magnetic memory sensors being arranged in a sensor box capable of automatically adjusting a radial position and each of the sensor boxes being able to fit the surface of the drilling tool in real time; each of the magnetic memory sensors is used to detect and collect a magnetic memory characteristic signal of the drilling tool;

[0010] A driving structure, disposed on the supporting structure, for driving the supporting structure to move and driving the ring structure to open and close;

[0011] A control unit, the detection structure and the driving structure are both electrically connected to the control unit.

[0012] In a preferred embodiment of the present invention, each of the sensor boxes is connected to the detection circumference of the support structure via a connecting structure;

[0013] Each of the connecting structures comprises a fixed column, an upper connecting rod, a lower connecting rod and a tension spring, wherein the upper connecting rod and the lower connecting rod are arranged in parallel, and the fixed column is fixedly connected to the ring structure and the circular arc notches of the inner bottom plate and the inner top plate; the first end of the upper connecting rod and the first end of the lower connecting rod are hinged to the fixed column at intervals up and down, and the second end of the upper connecting rod and the second end of the lower connecting rod are hinged to the sensor box, and the fixed column, the upper connecting rod, the lower connecting rod and the sensor box form a parallelogram structure that can swing;

[0014] The first end of the upper connecting rod is connected to the first end of the tension spring, and the second end of the tension spring is connected to the ring structure or the inner top plate.

[0015] In a preferred embodiment of the present invention, a first groove is provided inwardly on one side of each sensor box close to the connecting structure, a first hinge hole and a second hinge hole are provided on both sides of the first groove, a third hinge hole is provided on the second end of the upper connecting rod, the second end of the upper connecting rod is inserted into the first groove, and is hinged to the sensor box via a first hinge axis passing through the first hinge hole and the third hinge hole; a fourth hinge hole is provided on the second end of the lower connecting rod, the second end of the lower connecting rod is inserted into the first groove, and is hinged to the sensor box via a second hinge axis passing through the second hinge hole and the fourth hinge hole.

[0016] In a preferred embodiment of the present invention, a mounting groove is provided on each of the sensor boxes at a side of the first groove away from the connecting structure, and the magnetic memory sensor is mounted in the mounting groove.

[0017] In a preferred embodiment of the present invention, a transition arc surface is provided at the bottom end of each sensor box on a side away from the connecting structure.

[0018] In a preferred embodiment of the present invention, a second groove is provided inwardly on one side of the fixed column close to the connecting structure, a fifth hinge hole and a sixth hinge hole are provided on both sides of the second groove, a seventh hinge hole is provided on the first end of the upper connecting rod, the first end of the upper connecting rod is inserted into the second groove, and is hinged to the fixed column by a third hinge shaft passing through the fifth hinge hole and the seventh hinge hole; an eighth hinge hole is provided on the first end of the lower connecting rod, the first end of the lower connecting rod is inserted into the second groove, and is hinged to the fixed column by a fourth hinge shaft passing through the sixth hinge hole and the eighth hinge hole;

[0019] A column side through hole is arranged on a side of the fixed column away from the connecting structure, and the first end of the upper connecting rod passes through the column side through hole and is connected to the first end of the tension spring.

[0020] In a preferred embodiment of the present invention, the holding ring structure includes two half-holding rings arranged in radial symmetry, the first end of each half-holding ring is hinged to the inner bottom plate and the inner top plate, and the second end of each half-holding ring can be circumferentially buckled or swung open; the first end of each half-holding ring is respectively connected to a holding ring crank, and each holding ring crank is respectively connected to a push plate through a driving connecting rod, and the driving structure includes a pneumatic push rod connected to the push plate, and the pneumatic push rod is electrically connected to the control unit; a slide rail is arranged on the inner bottom plate, and the push plate can move along the slide rail under the drive of the pneumatic push rod to drive each half-holding ring to swing through the driving connecting rod and the holding ring crank.

[0021] In a preferred embodiment of the present invention, each of the half-embracing rings includes an upper ring plate and a lower ring plate, and the upper ring plate and the lower ring plate are supported and connected to the fixed column.

[0022] In a preferred embodiment of the present invention, a transmission shaft is arranged on the end of the inner bottom plate away from the circular arc notch, and bearing seats are respectively arranged on both sides of the end of the inner bottom plate away from the circular arc notch, and a bearing is sleeved in each of the bearing seats, and the transmission shaft rotates through two of the bearings; the transmission shaft is located on the outer sides of the two bearing seats and is respectively connected to the rotating wheels; the first end of the transmission shaft is connected to the first pulley, and the driving structure includes an air motor arranged on the inner bottom plate, and the air motor is electrically connected to the control unit; the air motor is connected to a second pulley, and a transmission belt is sleeved on the second pulley and the first pulley, and the air motor drives the rotating wheel to rotate through the second pulley, the transmission belt, the first pulley and the transmission shaft to drive the support structure to move; an auxiliary roller is also arranged on the inner bottom plate.

[0023] In a preferred embodiment of the present invention, the shell structure includes a shell top plate and a shell bottom plate, the shell top plate is connected to the top of the shell bottom plate through column supports; the shell through holes are arranged on the shell top plate and the shell bottom plate; a limiting track is arranged on the shell bottom plate, and the driving structure drives the supporting structure to move along the limiting track; and a plurality of rollers are arranged on the shell bottom plate.

[0024] As described above, the fully automatic drilling tool wellhead detection device of the present invention has the following beneficial effects:

[0025] The present invention performs nondestructive flaw detection on the surface of the drilling tool, collects the magnetic memory characteristic signal of the drilling tool through the magnetic memory sensor, and detects and locates the damaged part of the drilling tool by analyzing the change of the magnetic memory characteristic signal, thereby providing a basis for early flaw detection of the drilling tool; multiple magnetic memory sensors are arranged at intervals along the circumference of the detection circle, so that more accurate magnetic memory signals can be obtained, and the detection accuracy is higher; the present invention can directly detect the drilling tool being lifted up at the wellhead, greatly reducing the time and cost losses caused by transportation, and effectively improving the drilling efficiency;

[0026] Each sensor box can automatically adjust the radial position to fit the surface of the drill tool in real time, ensuring that the magnetic memory sensor inside it changes the radial position with the different sizes of the drill tool. The magnetic memory sensor can detect the surface of the drill tool very well, and can perform non-destructive testing on drill tools of different sizes;

[0027] The control unit drives the support structure to move and drives the ring structure to open and close through the drive structure, thereby improving the automatic control level of the fully automatic drilling tool wellhead detection device of the present invention; the loading and unloading problem during the wellhead drilling tool detection process is solved by the free opening and closing of the ring structure; the support structure can move freely, which can ensure that the present invention is located in a good detection position and reduce the intensity of the staff;

[0028] The detection device of the present invention has small size, light weight, simple structure, can be flexibly moved, and is easy to use. The present invention can be widely used in wellhead drilling tool damage detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The following drawings are only intended to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0030] in:

[0031] Figure 1 It is an overall structural diagram of the fully automatic drilling tool wellhead detection device of the present invention.

[0032] Figure 2 This is a schematic diagram of the structure of the fully automatic drilling tool wellhead detection device of the present invention after the outer shell top plate is removed.

[0033] Figure 3 This is a schematic diagram of the structure of the fully automatic drilling tool wellhead detection device of the present invention after removing the outer shell structure and the inner top plate.

[0034] Figure 4 This is a schematic diagram of the structure of the support structure of the present invention after removing the inner top plate.

[0035] Figure 5 Schematic diagram of a half-embracing ring of the embracing ring structure of the present invention.

[0036] Figure 6 It is a schematic diagram of the connection structure of the detection structure and the sensor box of the present invention.

[0037] Figure 7 Schematic diagram of the sensor box of the present invention.

[0038] Figure 8 It is a schematic diagram of the fully automatic drilling tool wellhead detection device of the present invention during the drilling tool detection process.

[0039] In the figure:

[0040] 1. Support structure;

[0041] 101, inner top plate; 102, inner bottom plate; 103, auxiliary roller; 104, arc notch; 105, holding ring structure; 106, holding ring crank; 107, driving connecting rod; 108, push plate; 109, slide rail;

[0042] 2. Detection structure;

[0043] 201, fixed column; 2011, second groove; 202, upper connecting rod; 203, lower connecting rod; 204, sensor box; 2041, first groove; 2042, mounting groove; 2043, transition arc surface; 205, magnetic memory sensor;

[0044] 3. Driving structure;

[0045] 301, pneumatic push rod; 302, pneumatic motor; 303, second pulley; 304, first pulley; 305, bearing seat; 306, bearing; 307, rotating wheel; 308, transmission shaft;

[0046] 4. Shell structure;

[0047] 401, shell through hole; 402, shell top plate; 403, shell bottom plate; 404, limit track; 405, roller;

[0048] 5. Drilling tools. DETAILED DESCRIPTION

[0049] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0050] The specific embodiments of the present invention described herein are only used to explain the purpose of the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, technicians can conceive of any possible variations based on the present invention, which should be considered to belong to the scope of the present invention. It should be noted that when an element is referred to as "arranged on" another element, it can be directly on the other element or there can also be a central element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a central element at the same time. The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation method.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0052] Example 1

[0053] like Figures 1 to 8 As shown, the present invention provides a fully automatic drilling tool wellhead detection device, comprising:

[0054] The shell structure 4 is used to be located on the wellhead platform, and the shell through hole 401 for passing the drilling tool 5 is provided on the shell structure 4; the present invention is operated on the platform at the wellhead position, which is more convenient for installation and disassembly, and the working state of the present invention can be observed more intuitively, thereby avoiding the influence on the drilling operation to a great extent;

[0055] The support structure 1 is movably arranged in the outer shell structure 4; Figure 2 As shown, it includes an inner bottom plate 102 and an inner top plate 101 which are arranged in an upper and lower interval. Specifically, the inner top plate 101 is connected to the inner bottom plate 102 through a column support. When inspection is required, the support structure 1 is moved to the inspection position of the wellhead. When inspection is not required, the support structure is moved away from the inspection position, without complicated disassembly and assembly operations.

[0056] The inner bottom plate 102 and the inner top plate 101 are both provided with arc notches 104 inwardly from the first end, and a swingable ring structure 105 is hingedly provided between the inner bottom plate 102 and the inner top plate 101; when the ring structure 105 is closed, the inner ring of the ring structure 105 and the arc notches 104 can enclose a detection circle corresponding to the shell through hole 401;

[0057] The detection structure 2 includes a plurality of magnetic memory sensors 205 arranged at intervals in the circumferential direction along the detection circumference. In a specific embodiment, the number of the magnetic memory sensors 205 is 16 and they are evenly spaced in the circumferential direction. Each magnetic memory sensor 205 is respectively arranged in a sensor box 204 that can automatically adjust the radial position and each sensor box 204 can fit the surface of the drilling tool 5 in real time. Each magnetic memory sensor 205 is used to detect and collect the magnetic memory characteristic signal of the drilling tool 5. The operation position of the present invention is located on the wellhead platform, so that the fitting condition of each sensor box 204 and the drilling tool 5 (drill string) can be more intuitively seen, and can be adjusted in time according to the operation condition.

[0058] The driving structure 3 is arranged on the supporting structure 1, and is used to drive the supporting structure 1 to move and drive the ring structure 105 to open and close;

[0059] The control unit, the detection structure 2 and the driving structure 3 are all electrically connected to the control unit.

[0060] The present invention utilizes the principle of metal magnetic memory detection (the metal magnetic memory principle is that ferromagnetic materials will have stress concentration effect before fatigue and damage. Due to the influence of the earth's magnetic field and the change of the magnetic domain structure of the metal material, the magnetic field around the material changes. This change will not disappear after the material is deformed and restored. Therefore, the state of the metal material can be judged by detecting the magnetic field around the metal.), collects the magnetic memory characteristic signal of the drilling tool through the magnetic memory sensor 205, and realizes the detection and positioning of the damaged part of the drilling tool by analyzing the change of the magnetic memory characteristic signal. In addition, there is no need to clean and magnetize the drilling tool before the drilling tool is detected, so it is easy to use.

[0061] The present invention takes ergonomic issues into consideration. After being installed on the wellhead platform, the total height of the present invention is about 15 cm, which is approximately equal to the height of a step. During detection operations or oil operations, operators can stand above the device to perform operations without causing any impact on the device.

[0062] The present invention performs nondestructive flaw detection on the surface of the drilling tool, collects the magnetic memory characteristic signal of the drilling tool through the magnetic memory sensor 205, and realizes flaw detection and positioning of the damaged part of the drilling tool by analyzing the change of the magnetic memory characteristic signal; multiple magnetic memory sensors 205 are arranged at intervals along the circumference of the detection circle, which can obtain more accurate magnetic memory signals and have higher detection accuracy; the present invention can directly detect the drilling tool being lifted up at the wellhead, greatly reducing the time and cost losses caused by transportation, and effectively improving the drilling efficiency;

[0063] Each sensor box 204 can automatically adjust the radial position to fit the surface of the drilling tool 5 in real time, ensuring that the magnetic memory sensor 205 inside it changes the radial position with the different sizes of the drilling tool. The magnetic memory sensor 205 can well detect the surface of the drilling tool 5 and can perform flaw detection on drilling tools of different sizes.

[0064] The control unit drives the support structure 1 to move and drives the ring structure 105 to open and close through the drive structure 3, thereby improving the automatic control level of the fully automatic drilling tool wellhead detection device of the present invention; the free opening and closing of the ring structure 105 solves the loading and unloading problem during the wellhead drilling tool detection process; the support structure 1 can move freely, which can ensure that the present invention is located in a good detection position and reduce the intensity of the staff;

[0065] The detection device of the present invention has small size, light weight, simple structure, can be flexibly moved, and is easy to use. The present invention can be widely used in wellhead drilling tool damage detection.

[0066] Further, if Figure 3 , Figure 6 As shown, each sensor box 204 is connected to the detection circumference of the support structure 1 through a connecting structure, that is, part of the sensor box 204 is connected to the ring structure 105, and part of the sensor box 204 is connected to the arc notch 104 of the inner top plate 101 and the inner bottom plate 102;

[0067] Each connecting structure includes a fixed column 201, an upper connecting rod 202, a lower connecting rod 203 and a tension spring. The upper connecting rod 202 and the lower connecting rod 203 are arranged in parallel. The fixed column 201 is fixedly connected to the ring structure 105 and the circular arc notch 104 of the inner bottom plate 102 and the inner top plate 101; the first end of the upper connecting rod 202 and the first end of the lower connecting rod 203 are hinged to the fixed column 201 at intervals up and down, and the second end of the upper connecting rod 202 and the second end of the lower connecting rod 203 are hinged to the sensor box 204. The fixed column 201, the upper connecting rod 202, the lower connecting rod 203 and the sensor box 204 form a parallelogram structure that can swing; the parallelogram structure can be movable, and the sensor box 204 can change its position as the size of the drilling tool is different, and the sensor box 204 can move up and down very flexibly, so that the magnetic memory sensor 205 can fit well on the surface of the drilling tool. When the size of the drilling tool changes, the multiple detection structures 2 can change the detection size by moving up and down to adapt to the drilling tools of different sizes during the detection process.

[0068] The first end of the upper connecting rod 202 is connected to the first end of the tension spring, and the second end of the tension spring is connected to the ring structure 105 or the inner top plate 101. This structure can make the sensor box 204 always close to the surface of the drilling tool 5 to be detected. This connection structure enables the entire detection device to not only adapt to the change of the drilling tool size at any time, but also ensure that the sensor box 204 is always close to the surface of the drilling tool 5.

[0069] Further, if Figure 6 , Figure 7 As shown, a first groove 2041 is provided inwardly on one side of each sensor box 204 close to the connecting structure, a first hinge hole and a second hinge hole are provided on both sides of the first groove 2041, a third hinge hole is provided on the second end of the upper connecting rod 202, the second end of the upper connecting rod 202 is inserted into the first groove 2041, and is hinged to the sensor box 204 through a first hinge axis passing through the first hinge hole and the third hinge hole; a fourth hinge hole is provided on the second end of the lower connecting rod 203, the second end of the lower connecting rod 203 is inserted into the first groove 2041, and is hinged to the sensor box 204 through a second hinge axis passing through the second hinge hole and the fourth hinge hole.

[0070] Further, if Figure 7 As shown, each sensor box 204 is provided with a mounting groove 2042 on the side of the first groove 2041 away from the connection structure, and the magnetic memory sensor 205 is mounted in the mounting groove 2042. The mounting groove 2042 is a rectangular recessed groove, and the magnetic memory sensor 205 is packaged in the mounting groove 2042.

[0071] Further, if Figure 6 , Figure 7As shown, a transition arc surface 2043 is provided at the bottom end of each sensor box 204 away from the connection structure, in order to adapt to the diameter change of the drill tool, make it smoother during the detection process, and prevent jamming.

[0072] Further, if Figure 5 , Figure 6 As shown, a second groove 2011 is provided inwardly on one side of the fixed column 201 close to the connection structure, a fifth hinge hole and a sixth hinge hole are provided on both sides of the second groove 2011, a seventh hinge hole is provided on the first end of the upper connecting rod 202, the first end of the upper connecting rod 202 is inserted into the second groove 2011, and is hinged to the fixed column 201 through a third hinge shaft passing through the fifth hinge hole and the seventh hinge hole; an eighth hinge hole is provided on the first end of the lower connecting rod 203, the first end of the lower connecting rod 203 is inserted into the second groove 2011, and is hinged to the fixed column 201 through a fourth hinge shaft passing through the sixth hinge hole and the eighth hinge hole;

[0073] A column side through hole is provided on a side of the fixed column 201 away from the connection structure, and the first end of the upper connecting rod 202 passes through the column side through hole and is connected to the first end of the tension spring.

[0074] Further, if Figure 3 , Figure 4 , Figure 5 As shown, the holding ring structure 105 includes two half holding rings arranged in radial symmetry, the first end of each half holding ring is hinged on the inner bottom plate 102 and the inner top plate 101, and the second end of each half holding ring can be circumferentially buckled or swung open; the first end of each half holding ring is respectively connected to the holding ring crank 106, and each holding ring crank 106 is respectively connected to the push plate 108 through the driving connecting rod 107, and the driving structure includes a pneumatic push rod 301 connected to the push plate 108, and the pneumatic push rod 301 is electrically connected to the control unit. Specifically, the pneumatic push rod 301 is fixed at the center and rear of the inner bottom plate 102; a slide rail 109 is arranged on the inner bottom plate 102, and the push plate 108 can move along the slide rail 109 under the drive of the pneumatic push rod 301 to drive each half holding ring to swing through the driving connecting rod 107 and the holding ring crank 106. Specifically, there are two slide rails 109 , which are fastened and installed in parallel at the middle and rear part of the inner bottom plate 102 .

[0075] One end of the ring crank 106 is connected to the half ring of the ring structure 105 and the inner bottom plate 102 through the first crank connecting shaft, and one end of the ring crank 106 is also provided with a connecting hole for fixing the half ring; the other end of the ring crank 106 is hinged to the driving connecting rod 107 through the second crank connecting shaft, and the ring structure 105 is well installed on the inner bottom plate 102, and its half ring can also be controlled by the driving connecting rod 107 to swing open and close around the first crank connecting shaft. The inner ring of the ring structure 105 and the arc notch 104 can enclose a detection circumference corresponding to the shell through hole 401 (the ring structure 105 and the inner bottom plate 102 form a ring), so that the detection structure 2 is well adapted to the detection of drilling tools.

[0076] The push plate 108 slides forward and backward on the slide rail 109 through the forward and backward pushing action of the pneumatic push rod 301, thereby driving the left and right ends ( Figure 3 The driving connecting rod 107 moves in the left and right directions (not limited to this direction), thereby pulling the ring crank 106 to rotate. Since the half ring is fixed to the ring crank 106, the half ring opens and closes accordingly. The movement rule is that when the pneumatic push rod 301 pushes the push plate 108 forward, the ring structure 105 closes. Otherwise, it opens. This structure realizes automatic control of the opening and closing of the ring structure 105. The free opening and closing of the ring structure 105 solves the loading and unloading problem during the wellhead drilling tool inspection process.

[0077] Further, if Figure 3 , Figure 4 , Figure 5 As shown, each half ring includes an upper ring plate and a lower ring plate, and the upper ring plate and the lower ring plate support and connect the fixed column 201. Specifically, 5 through holes are arranged at intervals along the circumference on the upper ring plate and the lower ring plate for installing the fixed column 201 of the fixed detection structure 2.

[0078] Further, if Figure 3As shown, a transmission shaft 308 is arranged at one end of the inner bottom plate 102 away from the arc notch 104, and bearing seats 305 are arranged on both sides of the end of the inner bottom plate 102 away from the arc notch (the tail end of the inner bottom plate 102), and a bearing 306 is sleeved in each bearing seat 305, and the transmission shaft 308 rotates through two bearings 306; the transmission shaft 308 is located on the outer sides of the two bearing seats 305 and is connected to the rotating wheels 307 respectively; the first end of the transmission shaft is connected to the first pulley 304, and the driving structure The invention comprises an air motor 302 arranged on the inner bottom plate 102, and the air motor 302 is electrically connected to the control unit; the air motor 302 is connected to the second pulley 303, and the second pulley 303 and the first pulley 304 are provided with a transmission belt, and the air motor 302 drives the rotating wheel 307 to rotate through the second pulley 303, the transmission belt, the first pulley 304, and the transmission shaft to drive the support structure 1 to move; the inner bottom plate 102 is also provided with an auxiliary roller 103, and the auxiliary roller can be a bull's eye wheel. Specifically, four bull's eye wheels are installed at the four corners of the inner bottom plate 102, so that the invention is more flexible and convenient to move during on-site detection.

[0079] The control unit starts the pneumatic motor 302, the pneumatic motor 302 drives the second pulley 303 to rotate, the second pulley 303 drives the first pulley 304 to rotate through the transmission belt connection, the first pulley 304 drives the transmission shaft 308 and the rotating wheel 307 installed thereon to rotate; the auxiliary roller 103 and the rotating wheel 307 cooperate together to enable the support structure 1 to move smoothly.

[0080] The power sources of the pneumatic push rod 301 and the pneumatic motor 302 are both air sources, that is, the forward and backward movement and opening and closing of the device are achieved by air pressure, which can better meet the explosion-proof requirements on site, and the method of providing the power source is simpler.

[0081] Further, if Figure 1 , Figure 2 As shown, the shell structure 4 includes a shell top plate 402 and a shell bottom plate 403, and the shell top plate 402 is connected to the top of the shell bottom plate 403 through a column support; the shell through hole 401 is set on the shell top plate 402 and the shell bottom plate 403; the shell bottom plate 403 is provided with a limit track 404, and the driving structure drives the support structure to move along the limit track 404. Specifically, the limit track 404 is located on the central axis of the rear part of the shell bottom plate 403, and the bottom surface of the inner bottom plate 102 is provided with a limit block, and the limit block is sleeved in the limit track 404 to meet the limit needs of the support structure 1; a plurality of rollers 405 are arranged on the shell bottom plate 403, so that the present invention is more flexible and convenient to move in on-site detection. Specifically, the roller 405 can be a bull's eye wheel. In a specific embodiment, the number of the bull's eye wheels is 8.

[0082] Example 2

[0083] The method of using the fully automatic drilling tool wellhead detection device of the present invention is as follows:

[0084] Assemble the detection structure 2 and the driving structure 3 on the support structure 1, install the support structure 1 on the shell bottom plate 403 of the shell structure 4 (the limit block on the bottom surface of the inner bottom plate 102 is sleeved in the limit track 404), and connect the shell top plate 402 to the top of the shell bottom plate 403 through the column support;

[0085] When drilling tool detection is not required, the support structure 1 and the detection structure 2 thereon are away from the housing through hole 401;

[0086] like Figure 8 As shown, when drilling tool inspection is required, the control unit instructs to start the pneumatic motor 302, the pneumatic motor 302 rotates forward, the pneumatic motor 302 drives the second pulley 303 to rotate, the second pulley 303 drives the first pulley 304 to rotate through the transmission belt connection, the first pulley 304 drives the transmission shaft 308 and the rotating wheel 307 installed thereon to rotate, and the support structure 1 moves toward the direction of the housing through hole 401 (front end) to the inspection working position;

[0087] The control unit instructs the pneumatic push rod 301 to extend, causing the push plate 108 to slide forward on the slide rail 109, driving the left and right ends ( Figure 3 The movement of the driving connecting rod 107 (in the left and right directions, not limited to this direction) pulls the ring crank 106 and the half ring to rotate, and the ring structure 105 is enclosed on the outside of the drilling tool 5.

[0088] The parallelogram structure formed by the fixed column 201, the upper connecting rod 202, the lower connecting rod 203 and the sensor box 204 can be movable, ensuring that during the lifting process of the drilling tool 5, even if the outer diameter of the drilling tool 5 changes, the sensor box 204 can be in contact with the surface of the drilling tool 5 to ensure real-time detection of the magnetic memory sensor 205.

[0089] After the drilling tool inspection is completed, the control unit instructs the pneumatic push rod 301 to retract, causing the push plate 108 to slide backward on the slide rail 109, driving the left and right ends ( Figure 3 The movement of the driving connecting rod 107 (left and right directions, not limited to this direction) pulls the ring crank 106 and the half ring to rotate, and the ring structure 105 swings open; the control unit instructs to start the pneumatic motor 302, the pneumatic motor 302 reverses, the pneumatic motor 302 drives the second pulley 303 to rotate, the second pulley 303 drives the first pulley 304 to rotate through the transmission belt connection, the first pulley 304 drives the transmission shaft 308 and the rotating wheel 307 installed thereon to rotate, and the support structure 1 moves in the direction away from the shell through hole 401 (rear end), away from the detection working position.

[0090] As described above, the fully automatic drilling tool wellhead detection device of the present invention has the following beneficial effects:

[0091] The present invention performs nondestructive flaw detection on the surface of the drilling tool, collects the magnetic memory characteristic signal of the drilling tool through the magnetic memory sensor, and detects and locates the damaged part of the drilling tool by analyzing the change of the magnetic memory characteristic signal, thereby providing a basis for early flaw detection of the drilling tool; multiple magnetic memory sensors are arranged at intervals along the circumference of the detection circle, so that more accurate magnetic memory signals can be obtained, and the detection accuracy is higher; the present invention can directly detect the drilling tool being lifted up at the wellhead, greatly reducing the time and cost losses caused by transportation, and effectively improving the drilling efficiency;

[0092] The parallelogram structure formed by the fixed column 201, the upper connecting rod 202, the lower connecting rod 203 and the sensor box 204 is movable, and the sensor box 204 can change its position as the size of the drill tool is different, and the sensor box 204 is very flexible in moving up and down, so that the magnetic memory sensor 205 can fit well on the surface of the drill tool. When the size of the drill tool changes, multiple magnetic memory sensors 205 can change the detection size by moving up and down to adapt to the different sizes of drill tools in the detection process;

[0093] Each sensor box can automatically adjust the radial position to fit the surface of the drill tool in real time, ensuring that the magnetic memory sensor inside it changes the radial position with the different sizes of the drill tool. The magnetic memory sensor can detect the surface of the drill tool very well, and can perform non-destructive testing on drill tools of different sizes;

[0094] The control unit drives the support structure to move and drives the ring structure to open and close through the drive structure, thereby improving the automatic control level of the fully automatic drilling tool wellhead detection device of the present invention; the loading and unloading problem during the wellhead drilling tool detection process is solved by the free opening and closing of the ring structure; the support structure can move freely, which can ensure that the present invention is located in a good detection position and reduce the intensity of the staff;

[0095] The detection device of the present invention has small size, light weight, simple structure, can be flexibly moved, and is easy to use. The present invention can be widely used in wellhead drilling tool damage detection.

[0096] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A fully automatic drilling tool wellhead detection device, characterized in that: include: A shell structure, used to be located on a wellhead platform, wherein a shell through hole for passing a drilling tool is provided on the shell structure; The supporting structure is movably arranged in the outer shell structure; it includes an inner bottom plate and an inner top plate arranged at an interval up and down, and the inner bottom plate and the inner top plate are both provided with arc notches inward from the first end, and a ring structure that can swing open and close is hingedly arranged between the inner bottom plate and the inner top plate; when the ring structure is closed, the inner ring of the ring structure and the arc notch can enclose a detection circumference corresponding to the through hole of the outer shell; The detection structure comprises a plurality of magnetic memory sensors arranged at intervals along the detection circumference, each of the magnetic memory sensors being arranged in a sensor box capable of automatically adjusting a radial position and each of the sensor boxes being able to fit the surface of the drilling tool in real time; each of the magnetic memory sensors is used to detect and collect a magnetic memory characteristic signal of the drilling tool; A driving structure, disposed on the supporting structure, for driving the supporting structure to move and driving the ring structure to open and close; A control unit, the detection structure and the driving structure are both electrically connected to the control unit.

2. The fully automatic drilling tool wellhead detection device according to claim 1, characterized in that: Each of the sensor boxes is connected to the detection circumference of the support structure through a connecting structure; Each of the connecting structures comprises a fixed column, an upper connecting rod, a lower connecting rod and a tension spring, wherein the upper connecting rod and the lower connecting rod are arranged in parallel, and the fixed column is fixedly connected to the ring structure and the circular arc notches of the inner bottom plate and the inner top plate; the first end of the upper connecting rod and the first end of the lower connecting rod are hinged to the fixed column at intervals up and down, and the second end of the upper connecting rod and the second end of the lower connecting rod are hinged to the sensor box, and the fixed column, the upper connecting rod, the lower connecting rod and the sensor box form a parallelogram structure that can swing; The first end of the upper connecting rod is connected to the first end of the tension spring, and the second end of the tension spring is connected to the ring structure or the inner top plate.

3. The fully automatic drilling tool wellhead detection device according to claim 2, characterized in that: A first groove is arranged inwardly on one side of each sensor box close to the connecting structure, a first hinge hole and a second hinge hole are arranged on both sides of the first groove, a third hinge hole is arranged on the second end of the upper connecting rod, the second end of the upper connecting rod is inserted into the first groove, and is hinged to the sensor box through a first hinge axis passing through the first hinge hole and the third hinge hole; a fourth hinge hole is arranged on the second end of the lower connecting rod, the second end of the lower connecting rod is inserted into the first groove, and is hinged to the sensor box through a second hinge axis passing through the second hinge hole and the fourth hinge hole.

4. The fully automatic drilling tool wellhead detection device according to claim 3, characterized in that: A mounting groove is arranged on each of the sensor boxes at a side of the first groove away from the connecting structure, and the magnetic memory sensor is mounted in the mounting groove.

5. The fully automatic drilling tool wellhead detection device according to claim 2, characterized in that: A transition arc surface is arranged at the bottom end of one side of each sensor box away from the connecting structure.

6. The fully automatic drilling tool wellhead detection device according to claim 2, characterized in that: A second groove is provided inwardly on one side of the fixed column close to the connecting structure, a fifth hinge hole and a sixth hinge hole are provided on both sides of the second groove, a seventh hinge hole is provided on the first end of the upper connecting rod, the first end of the upper connecting rod is inserted into the second groove, and is hinged to the fixed column through a third hinge shaft passing through the fifth hinge hole and the seventh hinge hole; an eighth hinge hole is provided on the first end of the lower connecting rod, the first end of the lower connecting rod is inserted into the second groove, and is hinged to the fixed column through a fourth hinge shaft passing through the sixth hinge hole and the eighth hinge hole; A column side through hole is arranged on a side of the fixed column away from the connecting structure, and the first end of the upper connecting rod passes through the column side through hole and is connected to the first end of the tension spring.

7. The fully automatic drilling tool wellhead detection device according to claim 2, characterized in that: The holding ring structure includes two half holding rings which are radially symmetrically arranged, the first end of each half holding ring is hinged to the inner bottom plate and the inner top plate, and the second end of each half holding ring can be circumferentially buckled or swung open; the first end of each half holding ring is respectively connected to a holding ring crank, and each holding ring crank is respectively connected to a push plate through a driving connecting rod, and the driving structure includes a pneumatic push rod connected to the push plate, and the pneumatic push rod is electrically connected to the control unit; a slide rail is arranged on the inner bottom plate, and the push plate can move along the slide rail under the drive of the pneumatic push rod to drive each half holding ring to swing through the driving connecting rod and the holding ring crank.

8. The fully automatic drilling tool wellhead detection device according to claim 7, characterized in that: Each of the half-embracing rings comprises an upper ring plate and a lower ring plate, and the upper ring plate and the lower ring plate are supported and connected to the fixed column.

9. The fully automatic drilling tool wellhead detection device according to claim 1, characterized in that: A transmission shaft is arranged on the end of the inner bottom plate away from the circular arc notch, and bearing seats are respectively arranged on both sides of the end of the inner bottom plate away from the circular arc notch, and a bearing is sleeved in each of the bearing seats, and the transmission shaft rotates through the two bearings; the transmission shaft is located on the outer sides of the two bearing seats and is respectively connected to the rotating wheels; the first end of the transmission shaft is connected to the first pulley, and the driving structure includes an air motor arranged on the inner bottom plate, and the air motor is electrically connected to the control unit; the air motor is connected to the second pulley, and the second pulley and the first pulley are sleeved with a transmission belt, and the air motor drives the rotating wheel to rotate through the second pulley, the transmission belt, the first pulley and the transmission shaft to drive the supporting structure to move; an auxiliary roller is also arranged on the inner bottom plate.

10. The fully automatic drilling tool wellhead detection device according to claim 1, characterized in that: The shell structure comprises a shell top plate and a shell bottom plate, wherein the shell top plate is connected to the top of the shell bottom plate through column support; The shell through holes are arranged on the shell top plate and the shell bottom plate; a limiting track is arranged on the shell bottom plate, and the driving structure drives the supporting structure to move along the limiting track; and a plurality of rollers are arranged on the shell bottom plate.

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