A deviated well testing device and a multifunction testing device

Abstract

The application discloses a kind of deviation testing devices of well plug, including the base for being connected with well plug, support being arranged on base, direction indicator being arranged on the top of support, and measuring structure, measuring structure is located at the bottom of support or is arranged on base for measuring the deviation amount of well plug in wellbore.The application also discloses a kind of multifunctional testing device of well plug, also include static tester being arranged on support, base includes bottom plate, bottom plate is equipped with the through hole that static tester passes through, static tester is slidably connected with support, and the bottom of static tester is inserted into well plug through the through hole.The deviation testing device provided by the application is easy to operate, and the direction indicator is provided so that the device is aligned in the same direction each time the deviation test is performed, so that the test data can be compared before and after, and the deviation direction of the well plug can be known.The multifunctional testing device of well plug provided by the application can perform static test and deviation test, and the structure is simple and easy to operate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of well plug testing, and more particularly to a well plug offset testing device and a multifunctional testing device. BACKGROUND

[0002] A fueling well plug is an oil outlet for taking oil from an underground pipeline network of a parking lot. The fueling well generally includes a well shaft and a well cover for protection, and a well plug connected to the underground pipeline network of the parking lot in the well shaft. Affected by geological factors such as geological subsidence, axial displacement occurs in the valve well and the oil supply pipeline along the line, and a large axial tension is applied to the connection part of the parking lot oil supply facility and the pipeline. Therefore, the well plug may be offset to different degrees due to the displacement of the pipeline, and the force condition of the facility and equipment cannot be found by daily inspection means. When the parking lot oil supply pipeline continuously displaces, the facility and equipment may be in contact with the well shaft, and the equipment may be damaged due to the transverse shear force, and even a parking lot oil spill event may occur. Therefore, it is necessary to regularly check and record the offset degree of the well plug, so as to ensure the safety of the parking lot fueling facility and equipment. At present, the displacement of the well plug is measured by manually measuring the distance between each part of the outer circumferential sidewall of the well plug and the well shaft wall. This testing method is troublesome, and since the measurement position cannot be guaranteed to be consistent during testing, the data measured at different times is difficult to compare.

[0003] In addition to testing the offset of the well plug in the well shaft, the testing of the well plug also includes static testing of the well valve on the well plug, that is, checking the valve core by pressing the well valve. The specific process is as follows: the residual pressure in the valve body is released by pressing the well valve for the first time, and the well valve is pressed for the second time after 3 seconds, and the leakage condition is observed and checked. If oil is still sprayed out, it means that the well valve has an internal leakage fault. If no oil is sprayed out, it is determined to be normal. The well valve is pressed for the first time, and oil is sprayed out. If the well valve is faulty, more oil will be sprayed out when the well valve is pressed for the second time. At present, when the well plug is statically tested, if the staff is too close to the well plug, the staff may be splashed by the sprayed oil, causing a safety hazard. If the staff is too far away from the well plug, it is difficult to press the well valve accurately, and the operation is very inconvenient.

[0004] At the same time, the above two tests on the well plug need to be tested separately, and the operation time is long and the operation steps are complicated. SUMMARY

[0005] The purpose of the present application is to overcome the low consistency in measuring the offset degree of the ground well plug in the prior art, and the difficulty in comparing the test data before and after, and to provide a plug well offset testing device. Meanwhile, the present application is aimed at the inconvenience of operation, the safety hazard, and the need for two-step static testing and ground well plug offset testing in the prior art, and provides a multifunctional testing device for the plug well. The offset testing device provided by the present application is easy to operate, and is provided with a direction indicator, so that the device is aligned in the same direction every time the offset test is performed, so that the test data can be compared before and after, and the offset direction of the ground well plug can be known. The multifunctional testing device for the plug well provided by the present application can perform static testing and offset testing, and has a simple structure and is easy to operate.

[0006] The purpose of the present application can be achieved by using the following technical solutions:

[0007] A plug well offset testing device, comprising a base for interfacing with a plug well, a support provided on the base, a direction indicator provided on the top of the support, and a measuring structure, the measuring structure being located at the bottom of the support or provided on the base for measuring the offset amount of the ground well plug in the wellbore.

[0008] The plug well is generally cylindrical, and since the direction of the ground well plug offset is difficult to predict, when a tape measure is directly used to measure the distance between the outer sidewall of the ground well plug and the inner sidewall of the wellbore, it is not only inconvenient to operate and the measurement accuracy is not high, but also the measurement position is difficult to keep consistent with the measurement position of the previous measurement. The offset testing device provided by the present application can interface with the wellbore of the plug well or the ground well plug, and under the action of the direction indicator, the orientation of the offset testing device is consistent every time the measurement is performed, so that the measurement position of the measuring structure is the same every time the measurement is performed, the consistency of the data is high, the recorded data can be better compared and monitored every time the measurement is performed, and after the base is aligned with the wellbore or the ground well plug, the measuring structure can directly measure the offset degree between the ground well plug and the wellbore without the need for re-alignment, and the use is more convenient. In addition, the support provided on the base facilitates the movement of the base during use, and the direction indicator is provided on the top of the support, so that the direction indicator is easy to observe and use.

[0009] Further, the base is used for interfacing with the ground well plug in the plug well, the measuring structure comprises a plurality of distance meters provided on the support or the base, and a control device electrically connected with the distance meters, the distance meters are used for measuring the distance between the distance meters and the inner sidewall of the wellbore of the plug well.

[0010] In the scheme, after the base is butt-jointed with the ground well plug, the whole offset testing device is rotated to a specific direction under the action of the direction indicator to ensure the consistency with the direction of the last measurement, and then the distance between the rangefinder and the inner sidewall of the wellbore of the plug well is measured and recorded. The rangefinder can be arranged on the base or the support, and the number of the rangefinders is multiple. The rangefinders can be uniformly distributed in the circumferential direction around the axis of the base, so that the direction in which the ground well plug is offset can be known by comparing the data of the rangefinders. The position of the rangefinder can be such that the starting point of the rangefinder is flush with the outer circumferential sidewall of the base or the outer circumferential sidewall of the ground well plug. Since the rangefinder is relatively fixed with the base, as long as the ground well is in the same direction when the offset testing device is measured each time, the data measured by the rangefinder can be compared.

[0011] Further, the base is used to butt-joint with the wellbore of the plug well, and the base comprises a transparent plate, the outer diameter of the transparent plate is the same as the inner diameter of the wellbore, and the measuring structure is a plurality of scale lines arranged on the bottom plate in the radial direction of the transparent plate.

[0012] In the scheme, instead of using a rangefinder, scale lines are arranged in the radial direction of the transparent plate after the transparent plate is covered in the wellbore, the transparent plate is coincident with the axis of the wellbore, and if the ground well plug is offset relative to the wellbore, the offset degree of the ground well plug can be known by observing the position of the outer sidewall of the ground well plug on the scale line and reading the number. At the same time, before reading the scale line, the direction indicator is also used to make the orientation of the offset testing device consistent each time when the measurement is performed, so that each measurement can align the same position of the ground well plug for each scale line, and the data measured by the rangefinder can be compared.

[0013] Further, the direction indicator is a compass.

[0014] Compared with the means of indicating the direction by marking on the plug well or near the plug well, the mark is easy to be corroded and damaged, and the workload is large if the mark is made on each plug well. In the scheme, the compass is used to indicate the orientation of the offset testing device, which is more reliable. As long as the compass is directed to the same position each time when the test is performed, the position tested by the offset testing device can be consistent each time when the test is performed, and the direction in which the ground well plug is offset can be known after the compass is used to indicate the direction. Of course, the realization of the scheme is not affected by using a north-seeking needle or the like instead of the compass.

[0015] A multifunctional testing device for plug well also comprises a static tester arranged on the support, the base comprises a bottom plate, the bottom plate is provided with a through hole through which the static tester passes, the static tester is in sliding connection with the support, and the bottom of the static tester extends into the plug well through the through hole.

[0016] The bottom plate is used to cover the wellbore or the well plug, so as to block the sprayed oil. The static tester can slide up and down in the support, extend into the wellbore below the bottom plate through the through hole on the bottom plate, and contact the well valve on the well plug in the wellbore, so as to press the well valve for static testing. Since the well valve on the well plug is a small-diameter cylindrical protrusion located at the top of the well plug, the static tester is difficult to align and correctly press the well valve without any other device to assist in directly extending to the well valve. By using the multifunctional testing device of the application, the bottom plate covers the wellbore or the well plug, which plays a role in blocking the splashing of oil. The range finder can be arranged on the bottom plate or the support, or the bottom plate is made of transparent material to make the bottom plate transparent, so that the multifunctional testing device has a simple structure and can simultaneously realize the functions of static testing and deviation testing.

[0017] Further, the static testing period includes a handle slidingly connected with the support and fixedly connected with the top of the top rod, and the top rod can be inserted into and moved in the support.

[0018] The top rod moves up and down in the support to extend into the well plug to press the well valve, and the handle is used to facilitate the insertion and extraction of the top rod. The support is used for the top rod to slide therein, so as to avoid the top rod from tilting and make it more convenient for the top rod to press the well valve.

[0019] Further, the through hole is arranged at the center of the bottom plate, the support is provided with a hollow tube vertically arranged on the bottom plate, the bottom end of the hollow tube is connected with the through hole, and the top rod is arranged in the hollow tube and slidingly connected with the hollow tube.

[0020] The hollow tube is sleeved on the top rod, and the hollow tube plays a role in guiding the top rod and limiting the position. The bottom of the hollow tube can be fixedly connected or detachably connected with the base. The hollow tube can be an open-top rod, and the top rod can be inserted into and extracted from the top of the hollow tube. The handle is abutted on the top of the hollow tube to avoid the top rod from sliding off the bottom of the hollow tube, or other connection modes do not affect the implementation of the scheme.

[0021] Further, a through groove is formed in the side wall of the hollow tube close to the top, and the handle can slide in the through groove.

[0022] In the scheme, the ejector rod cannot be pulled out of the hollow tube, but is limited to slide in the hollow tube, the handle is limited to slide in the through slot arranged along the axis of the hollow tube, and the top of the through slot can also be provided with a limiting slot arranged along the circumference of the hollow tube, and the handle is slid into the limiting slot to limit the falling of the ejector rod. At the same time, since the ejector rod cannot be pulled out of the hollow tube and the handle is limited in the through slot, the entire multifunctional testing device can be lifted by lifting the handle, and the entire multifunctional testing device can be rotated by rotating the handle, so that the orientation of the multifunctional testing device can be adjusted according to the direction indicator.

[0023] Further, the inner circumferential side wall of the hollow tube is provided with a first limiting piece, the outer side wall of the ejector rod is provided with a second limiting piece, the second limiting piece is located above the first limiting piece, a spring is arranged between the first limiting piece and the second limiting piece, the axis of the spring is parallel to the axis of the ejector rod, and the two ends of the spring are respectively abutted or fixedly connected with the first limiting piece and the second limiting piece.

[0024] In the scheme, when static testing is needed, the handle spring is compressed to make the ejector rod slide downward in the hollow tube, and after the static testing is completed, the handle only needs to be released, and the ejector rod can be automatically reset under the action of the spring. In the state that no force is applied to the handle, the bottom of the ejector rod is located in the hollow tube, and only by pressing the handle downward can the ejector rod be extended from the bottom of the hollow tube, so that the base can be directly placed on the ground in the state that the multifunctional testing device is not used.

[0025] Further, the handle serves as the second limiting piece, the number of the spring is one, the spring is sleeved on the ejector rod, one end of the spring is abutted with the first limiting piece, and the other end of the spring is abutted with the handle.

[0026] In the scheme, the handle is used as the second limiting piece, so that the structure is more compact. A second limiting piece can also be additionally arranged on the outer circumferential side wall of the ejector rod, and the spring can not be sleeved on the ejector rod, and at this time, the number of the spring can be multiple and uniformly distributed along the outer circumferential side wall of the top cover.

[0027] Compared with the prior art, the beneficial effects of the present application are:

[0028] (1) The base is docked with the shaft of the well or the ground well bolt to facilitate positioning of the deviation testing device, and under the action of the direction indicator, the orientation of the deviation testing device is consistent each time testing is performed, so that data can be recorded and compared and the deviation direction of the ground well bolt can be known.

[0029] (2) The base and the ground well bolt are butted, the axis of the base and the axis of the ground well bolt are on the same line, a distance between the distance meter and the inner wall of the well is tested by using the distance meter arranged circumferentially around the base, and the offset of the ground well bolt can be known according to the difference between the distances between the distance meters at different positions and the inner wall of the well.

[0030] (3) The transparent plate is butted with the well, and the scale line is arranged along the radial direction of the transparent plate, the reading of the outer peripheral wall of the ground well bolt on the scale line can be directly read, and thus the offset of the ground well bolt can be known.

[0031] (4) In the static test, the bottom plate or the transparent plate in the base can block the splashing of the oil, and after the base is butted and positioned with the well or the ground well bolt, the support fixed on the base can guide the jacking rod to be more easily aligned with the ground well valve, and the operation is more convenient.

[0032] (5) The multifunctional testing device can simultaneously realize the offset test and the static test, and the structure of the whole device is simple and the operation is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a whole structure schematic view of the offset testing device of the embodiment 1 of the present application.

[0034] Figure 2 It is a whole structure schematic view of the offset testing device of the embodiment 2 of the present application.

[0035] Figure 3 It is a structure schematic view of the transparent plate of the embodiment 2 of the present application.

[0036] Figure 4 It is a whole structure schematic view of the multifunctional testing device of the embodiment 3 of the present application.

[0037] Figure 5 It is a structure schematic view of the through groove of the embodiment 3 of the present application.

[0038] Figure 6 It is a whole structure schematic view of the multifunctional testing device of the embodiment 4 of the present application.

[0039] The illustration marks are explained as follows:

[0040] 1-base, 11-transparent plate, 12-bottom plate, 121-through hole, 13-annular protruding ring, 2-support, 21-hollow tube, 211-through groove, 212-first limiting piece, 22-spring, 23-limiting ring, 24-supporting rod, 3-direction indicator, 41-distance meter, 42-scale line, 5-static tester, 51-jacking rod, 52-handle. DETAILED DESCRIPTION

[0041] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0042] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0043] Example 1

[0044] like Figure 1 As shown, a wellbore offset testing device includes a base 1 for docking with the wellbore, a bracket 2 disposed on the base 1, a direction indicator 3 disposed on the top of the bracket 2, and a measuring structure located at the bottom of the bracket 2 or disposed on the base 1 for measuring the offset of the wellbore bolt in the well casing.

[0045] Wellbores are typically cylindrical, and because the direction of wellbore offset is difficult to predict, directly measuring the distance between the outer wall of the wellbore and the inner wall of the wellbore using a measuring tape is cumbersome and inaccurate. Furthermore, it's difficult to maintain consistency between the measurement positions for each measurement and the previous one. The offset testing device provided by this invention has a base 1 that can connect to the wellbore or wellbore. Simultaneously, the direction indicator 3 ensures that the offset testing device maintains a consistent orientation for each measurement. This ensures that the measurement structure maintains the same position each time, resulting in high data consistency. Recorded data can be better compared and monitored. Moreover, once the base 1 is aligned with the wellbore or wellbore, the measurement structure can directly measure the degree of offset between the wellbore and the wellbore without needing to readjust the measurement structure, making it more convenient to use. Additionally, the bracket 2 on the base 1 facilitates movement of the base 1 during use, and the direction indicator 3 is located on top of the bracket 2 for easy observation.

[0046] The base 1 is used to be connected with the ground well plug, the measuring structure comprises a plurality of distance meters 41 arranged on the support 2 or the base 1 and a control device electrically connected with the distance meters 41, and the distance meters 41 are used to measure the distance between the distance meters 41 and the inner sidewall of the wellbore of the plug well.

[0047] In the scheme, after the base 1 is connected with the ground well plug, the whole offset testing device is rotated to a specific direction under the action of the direction indicator 3 to ensure that the direction is consistent with the direction in the last measurement, and then the distance between the distance meters 41 and the inner sidewall of the wellbore of the plug well is measured by the distance meters 41 and recorded. The distance meters 41 can be arranged on the base 1 or the support 2, the number of the distance meters 41 is multiple, and the distance meters 41 can be uniformly distributed in the circumferential direction around the axis of the base 1, so that it can be known that the ground well plug is offset to which side by comparing the data of the distance meters 41. The position of the distance meters 41 can be such that the starting point of the distance meters 41 is flush with the outer peripheral sidewall of the base 1 or the outer peripheral sidewall of the ground well plug. Since the distance meters 41 are relatively fixed with the base 1, as long as the ground well is in the same direction when the offset testing device measures each time, it can be ensured that the data measured by the distance meters 41 can be compared before and after. In the embodiment, the number of the distance meters 41 is four and they are uniformly distributed on the base 1 or the support 2. The base 1 comprises a bottom plate 12 and an annular protrusion 13 arranged at the bottom of the bottom plate 12, and the inner diameter of the annular protrusion 13 is equal to the outer diameter of the ground well plug.

[0048] The direction indicator 3 is a compass.

[0049] Compared with the means of indicating the direction by marking on the plug well or near the plug well, the mark is easy to be corroded and destroyed, and the workload is large if the mark is made on each plug well, the scheme uses the compass to indicate the direction of the offset testing device, and the reliability is higher, as long as the compass is directed to the same position each time, the position measured by the offset testing device each time can be ensured to be consistent, and meanwhile, it can be known that the ground well plug is offset to which direction after the direction is indicated by the compass. Of course, the realization of the scheme is not affected by using the north pointer instead of the compass.

[0050] Embodiment 2

[0051] The embodiment is similar to the embodiment 1, and the difference is that, as shown in Figure 2 and Figure 3 In the embodiment, the base 1 is used to be connected with the wellbore of the plug well, the base 1 comprises a transparent plate 11, the outer diameter of the transparent plate 11 is the same as the inner diameter of the wellbore, and the measuring structure is a plurality of scale lines 42 arranged on the bottom plate 12 in the radial direction of the transparent plate 11.

[0052] The present scheme is not to use range finder 41, but through the transparent plate 11 cover in the wellbore, along the radial direction of the transparent plate 11 set scale line 42, the transparent plate 11 coincides with the axis of the wellbore, if the wellbore casing relative to the wellbore offset, then through the observation wellbore casing outside wall in the scale line 42 position and reading can be obtained wellbore casing offset degree. At the same time, the present scheme in the scale line 42 is read, also through the direction indicator 3 makes the each time measurement the orientation of the offset test device is consistent, so each time measurement is each scale line 42 can be aligned with the same position of the wellbore casing, ensure that the data measured by range finder 41 can be compared before and after.

[0053] As shown in Figure 3 In the present embodiment, the scale line 42 is a cross scale line 42, both scale line 42 is along the diameter of the transparent plate 11,

[0054] Embodiment 3

[0055] As shown in Figure 4 And Figure 5 As shown in a kind of wellbore multifunctional testing device further comprising static tester 5 being arranged on support 2, base 1 includes bottom plate 12, bottom plate 12 is provided with the through hole 121 that static tester 5 passes through, static tester 5 is slidably connected with support 2, the bottom of static tester 5 passes through the through hole 121 and extends into wellbore.

[0056] Bottom plate 12 is used to cover wellbore or wellbore casing, so as to block the oil spatter. Static tester 5 can slide up and down in support 2, and extend into the wellbore below the bottom plate 12 through the through hole 121 on the bottom plate 12 to contact the well valve on the wellbore casing in the wellbore, so as to press the well valve for static test. Since the well valve on the wellbore casing is a small diameter cylindrical protrusion located at the top of the wellbore casing, it is difficult to align and correctly press the well valve without any other device to assist the direct extension of the static tester 5 to the well valve. Using the multifunctional testing device of the present application, the bottom plate 12 covers the wellbore or wellbore casing, which blocks the oil spatter. The range finder 41 can be arranged on the bottom plate 12 or the support 2, or the bottom plate 12 can be made of transparent material to make the bottom plate 12 a transparent plate 11, so that the multifunctional testing device is simple in structure and can simultaneously realize the functions of static test and offset test,

[0057] The static test period includes handle 52 which is slidably connected with support 2 and fixedly connected with the top of top rod 51, and top rod 51 can be inserted into and moved in support 2.

[0058] The top rod 51 moves up and down in the support 2 to extend into the wellbore to press the well valve, and the handle 52 is used to facilitate the insertion and extraction of the top rod 51, and the support 2 is used for the sliding of the top rod 51 therein to avoid the top rod 51 from tilting and to facilitate the top rod 51 to press the well valve.

[0059] The through hole 121 is arranged at the center of the bottom plate 12, the support 2 is vertically arranged on the bottom plate 12, the hollow tube 21 is in butt joint with the through hole 121 at the bottom end, and the top rod 51 is arranged in the hollow tube 21 and is in sliding connection with the hollow tube 21.

[0060] The hollow tube 21 is sleeved on the top rod 51, and the hollow tube 21 plays a role of guiding and limiting the top rod 51. The bottom of the hollow tube 21 can be fixedly connected or detachably connected with the base 1. The hollow tube 21 can be a top opening, and the top rod 51 can be inserted and pulled out from the top of the hollow tube 21, the handle 52 is abutted on the top of the hollow tube 21 to avoid the top rod 51 from sliding off the bottom of the hollow tube, or other connection modes do not affect the implementation of the scheme.

[0061] The side wall close to the top of the hollow tube 21 is provided with a through slot 211 for the handle 52 to pass through, and the handle 52 can slide in the through slot 211.

[0062] In the scheme, the top rod 51 cannot be pulled out of the hollow tube 21, but is limited to slide in the hollow tube 21, the handle 52 is limited to slide in the through slot 211, the through slot 211 is arranged along the axis of the hollow tube 21, and the top of the through slot 211 can also be provided with a limiting slot, the limiting slot is arranged along the circumference of the hollow tube 21, and the handle 52 is limited to slide into the limiting slot, so that the falling of the top rod 51 is limited. At the same time, since the top rod 51 cannot be pulled out of the hollow tube 21 and the handle 52 is limited to slide in the through slot 211, the entire multifunctional testing device can be lifted by lifting the handle 52, and the entire multifunctional testing device can be rotated by rotating the handle 52, so as to facilitate the adjustment of the orientation of the multifunctional testing device according to the direction indicator 3.

[0063] The inner circumferential side wall of the hollow tube 21 is provided with a first limiting piece 212, the outer side wall of the top rod 51 is provided with a second limiting piece, the second limiting piece is located above the first limiting piece 212, the first limiting piece 212 and the second limiting piece

[0064] are provided with a spring 22, the axis of the spring 22 is parallel to the axis of the top rod 51, and the two ends of the spring 22 are respectively in abutment or fixed connection with the first limiting piece 212 and the second limiting piece.

[0065] In the scheme, when static testing is needed, the spring 22 is compressed by pressing the handle 52, the top rod 51 slides downward in the hollow tube 21, and after the static testing is completed, the handle 52 only needs to be released, and the top rod 51 can be automatically reset under the action of the spring 22. Under the state that no force is applied to the handle 52, the bottom of the top rod 51 is located in the hollow tube 21,

[0066] only by pressing the handle 52 downward, the top rod 51 can be stretched out from the bottom of the hollow tube 21, so that the base 1 can be directly placed on the ground in the state that the multifunctional testing device is not used.

[0067] The handle 52 serves as the second limiting member. There is one spring 22, which is sleeved on the top rod 51. One end of the spring 22 abuts against the first limiting member 212, and the other end abuts against the handle 52.

[0068] In this design, handle 52 is used as a second limiting component, resulting in a more streamlined structure. Alternatively, it can be placed at the top.

[0069] A second limiting member is provided on the outer peripheral sidewall of rod 51. Spring 22 may not be sleeved on top rod 51. At this time, the number of springs 225 can be multiple and evenly distributed along the outer peripheral sidewall of top cover.

[0070] Example 4

[0071] This embodiment is similar to Embodiment 3, except that, as Figure 6 As shown, in this embodiment, the bracket 2 includes a limiting ring 23 and a support rod 24, and the base 1 includes a transparent plate 11, with the center of the transparent plate 11...

[0072] A through hole 121 is provided. One end of the support rod 24 is fixedly connected to the fiber ring, and the other end of the support rod 24 is fixedly connected to the transparent O plate 11. The top rod 51 can be inserted into the limiting ring 23. The inner diameter of the limiting ring 23 and the inner diameter of the through hole 121 are...

[0073] The diameters are all larger than the outer diameter of the push rod 51. Since the transparent plate 11 is connected to the wellbore, when the well plug shifts, the position of the well valve located at the center of the well plug also shifts. At this time, the handle 52 can be manipulated to rotate the push rod 51 around the positioning ring as a fulcrum, thereby connecting the bottom end of the push rod 51 with the well valve. The compass can be fixed to the side wall of the limiting ring 23 or the top of the handle 52.

[0074] 5. Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to be generalized.

[0075] This description limits the implementation of the present invention. Those skilled in the art will recognize that various variations and modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims.

Claims

1. A multifunctional testing device for tungsten wells, characterized in that, The device includes an offset testing device, which comprises a base (1) for docking with the well plug, a bracket (2) on the base (1), a direction indicator (3) on the top of the bracket (2), and a measuring structure. The measuring structure is located at the bottom of the bracket (2) or on the base (1) for measuring the offset of the well plug in the well shaft. The base (1) is used to dock with the well plug in the well. The measuring structure includes a plurality of rangefinders (41) on the bracket (2) or the base (1) and a control device electrically connected to the rangefinders (41). The rangefinders (41) are used to measure the distance between the rangefinders (41) and the inner wall of the well shaft. It also includes a static tester (5) mounted on the bracket (2). The base (1) includes a base plate (12) with a through hole (121) through which the static tester (5) passes. The static tester (5) is slidably connected to the bracket (2), and the bottom of the static tester (5) extends into the bolt well through the through hole (121). The static tester (5) includes a handle (52) slidably connected to the bracket (2) and fixedly connected to the top of the top rod (51). The top rod (51) can be inserted into the bracket (2) and move within the bracket (2).

2. The multifunctional testing device for bolted wells according to claim 1, characterized in that, The through hole (121) is located at the center of the base plate (12). The bracket (2) is vertically mounted on the hollow tube (21) on the base plate (12). The bottom end of the hollow tube (21) is connected to the through hole (121). The top rod (51) is located inside the hollow tube (21) and is slidably connected to the hollow tube (21).

3. The multifunctional testing device for bolted wells according to claim 2, characterized in that, The hollow tube (21) has a through groove (211) on the side wall near the top for the handle (52) to pass through, and the handle (52) can slide in the through groove (211).

4. The multifunctional testing device for bolted wells according to claim 3, characterized in that, The hollow tube (21) has a first limiting (212) on its inner circumferential sidewall and a second limiting member on its outer sidewall. The second limiting member is located above the first limiting (212). A spring (22) is provided between the first limiting (212) and the second limiting member. The axis of the spring (22) is parallel to the axis of the top rod (51). The two ends of the spring (22) are respectively abutted or fixedly connected to the first limiting (212) and the second limiting member.

5. The multifunctional testing device for bolted wells according to claim 4, characterized in that, The handle (52) serves as the second limiting member. There is one spring (22). The spring (22) is sleeved on the top rod (51). One end of the spring (22) abuts against the first limiting member (212) and the other end abuts against the handle (52).

6. The multifunctional testing device for bolted wells according to any one of claims 1 to 5, characterized in that, The direction indicator (3) is a compass.

7. A multifunctional testing device for tungsten wells, characterized in that, The device includes an offset testing device, which comprises a base (1), a bracket (2) mounted on the base (1), a direction indicator (3) mounted on the top of the bracket (2), and a measuring structure. The measuring structure is located at the bottom of the bracket (2) or mounted on the base (1) for measuring the offset of the well plug in the well casing. The base (1) is used to connect with the well casing of the well plug. The base (1) includes a transparent plate (11), the outer diameter of which is the same as the inner diameter of the well casing. The device also includes a static tester (5) mounted on the bracket (2). The base (1) includes a base plate (12). The base plate (12) is provided with a through hole (121) through which the static tester (5) passes. The static tester (5) is slidably connected to the bracket (2). The bottom of the static tester (5) extends into the bolt well through the through hole (121). The static tester (5) includes a handle (52) that is slidably connected to the bracket (2) and fixedly connected to the top of the top rod (51). The top rod (51) is inserted into the bracket (2) and moves within the bracket (2). The measuring structure consists of several scale lines (42) arranged radially along the transparent plate (11) on the base plate (12).

8. The multifunctional testing device for bolted wells according to claim 7, characterized in that, The through hole (121) is located at the center of the base plate (12). The bracket (2) is vertically mounted on the hollow tube (21) on the base plate (12). The bottom end of the hollow tube (21) is connected to the through hole (121). The top rod (51) is located inside the hollow tube (21) and is slidably connected to the hollow tube (21).

9. The multifunctional testing device for bolted wells according to claim 8, characterized in that, The hollow tube (21) has a through groove (211) on its side wall near the top for the handle (52) to pass through, and the handle (52) can slide in the through groove (211); the hollow tube (21) has a first limiting (212) on its inner circumferential side wall, and the top rod (51) has a second limiting member on its outer side wall, the second limiting member being located above the first limiting (212) and a spring (22) being provided between the first limiting (212) and the second limiting member, the axis of the spring (22) being parallel to the axis of the top rod (51), and the two ends of the spring (22) being abutted or fixedly connected to the first limiting (212) and the second limiting member, respectively.

10. The multifunctional testing device for bolted wells according to claim 9, characterized in that, The handle (52) serves as the second limiting member. There is one spring (22). The spring (22) is sleeved on the top rod (51). One end of the spring (22) abuts against the first limiting member (212) and the other end abuts against the handle (52).

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