Oil casing thread buckling inspection device

Abstract

The utility model relates to an oil casing thread buckling inspection device, which belongs to the technical field of petroleum machinery and comprises a left half ring and a right half ring, one end of the left half ring is hinged with one end of the right half ring through a pin shaft, the other end of the left half ring is buckled with the other end of the right half ring, and internal threads are arranged on the inner sides of the left half ring and the right half ring. The bottom of the left half ring and the bottom of the right half ring are respectively and evenly provided with a plurality of contacts, indicating lamps are arranged right above the contacts, and the contacts are electrically connected with the indicating lamps, the oil casing pipe butt-buckling detection device can help to carry out butt-buckling detection of oil casing pipes, avoids the situation of upward deflection buckling, and is especially suitable for large-specification casing pipes.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil machinery technical field, concretely relates to a casing thread make up inspection device. BACKGROUND

[0002] In the casing running operation of oil and gas field, the upper and lower two pipe columns are connected into a whole through threads. In the process of putting the external thread into the internal thread, in order to protect the safety of the internal and external thread end face, the make up device is generally used for assisting, and then slow thread make up is carried out, the purpose is to prevent the upper thread make up, which is generally determined by the swing amplitude of the casing top observed by the field operator. For the casing with the specification less than 9-5 / 8 inch, if the upper thread make up, the swing amplitude of the top is obvious and is easier to determine. But for the casing with the specification of 9-5 / 8 inch and more, the swing amplitude of the top is not obvious due to the slow speed, and the misjudgment is easy to occur. If misjudgment, the damage of one casing is caused, and the oil well is completely scrapped, the loss value is immeasurable. SUMMARY

[0003] The utility model discloses a casing thread make up inspection device, which can help to check the thread make up of the casing and avoid the upper thread make up, and is especially suitable for large specification casing.

[0004] The utility model discloses a casing thread make up inspection device, which can help to check the thread make up of the casing and avoid the upper thread make up, and is especially suitable for large specification casing.

[0005] As a further improvement of the above technical solution:

[0006] The end of the left half ring is provided with a plurality of positioning columns, and the plurality of positioning columns are arranged longitudinally.

[0007] The end of the right half ring is provided with a plurality of positioning holes, and the plurality of positioning holes are arranged longitudally.

[0008] The plurality of positioning holes correspond to the plurality of positioning columns.

[0009] The positioning hole and the positioning column both have strong magnetism, and the magnetism of the positioning hole and the positioning column is opposite.

[0010] The outer side of the left half ring and the right half ring is respectively provided with a handle.

[0011] Due to the adoption of the above technical solution, the advantages of this utility model compared with the prior art are as follows: In use, first open the utility model and place it on the middle of the external thread of the oil casing. During the closing process, rotate it slightly to engage with the external thread of the oil casing and then close the device. Then rotate the device clockwise along the external thread of the oil casing until it can no longer be rotated. Next, place the external thread of the oil casing into the internal thread of the coupling and slowly rotate it one revolution, observing the indicator light status. This utility model can help check the thread alignment of oil casings, avoiding misalignment, and is especially suitable for large-specification casings.

[0012] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an oil sleeve thread reconnection inspection device according to an embodiment of this utility model;

[0014] Figure 2 yes Figure 1 Top view;

[0015] Figure 3 This is a schematic diagram of the structure of an oil sleeve thread reconnection inspection device in a semi-open state according to an embodiment of this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of an oil casing thread reconnection inspection device in the fully open state according to an embodiment of this utility model;

[0017] Figure 5 This is a diagram showing the usage state of this utility model.

[0018] In the diagram, 1-left half ring, 2-right half ring, 3-pin, 4-locating post, 5-locating hole, 6-internal thread, 7-handle, 8-contact, 9-indicator light, 10-oil sleeve, 11-coupling. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Example

[0021] like Figures 1-4 As shown, an oil casing thread fastening inspection device includes a left half-ring 1 and a right half-ring 2. One end of the left half-ring 1 and the right half-ring 2 are hinged by a pin 3, and the other ends of the left half-ring 1 and the right half-ring 2 are fastened together to form a complete ring. The end of the left half-ring 1 is provided with a number of positioning pins 4 arranged longitudinally. The end of the right half-ring 2 is provided with a number of positioning holes 5 arranged longitudinally. The number of positioning holes 5 correspond to the number of positioning pins 4. Both the positioning holes 5 and the positioning pins 4 have strong magnetism, and the magnetism of the positioning holes 5 and the positioning pins 4 is opposite. The positioning holes 5 and the positioning pins 4 are fastened by magnetic attraction.

[0022] The inner sides of the left half ring 1 and the right half ring 2 are provided with internal threads 6, and the outer sides of the left half ring 1 and the right half ring 2 are respectively provided with handles 7.

[0023] The bottom of the left half ring 1 and the right half ring 2 are each provided with a number of contact points 8. In this embodiment, the bottom of the left half ring 1 and the right half ring 2 are each provided with two contact points 8. An indicator light 9 is provided directly above the contact point 8. The contact point 8 is electrically connected to the indicator light 9. When the contact point 8 is pressed down, the indicator light 9 above it lights up.

[0024] like Figure 5 As shown, in use, first open the device and place it on the middle of the external thread of the oil casing 10. During the closing process, rotate it slightly to engage with the external thread of the oil casing 10 and then close the device. Next, rotate the device clockwise along the external thread of the oil casing 10 until it can no longer be rotated. Then, place the external thread of the oil casing 10 into the internal thread of the coupling 11 and slowly rotate it one revolution, observing the status of the indicator light 9.

[0025] When all four indicator lights 9 flash simultaneously, it indicates that the connection is successful. After removing this utility model, simply screw the external thread of the oil sleeve 10 back on normally. If only some indicator lights are lit, it means that the oil sleeve 10 is tilted towards the lit side and should be checked and adjusted.

[0026] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A casing and tubing thread make-up inspection device characterized by: It includes left half ring (1) and right half ring (2), one end of left half ring (1) and right half ring (2) is hinged through pin shaft (3), the other end of left half ring (1) and right half ring (2) is buckled, the inside of left half ring (1) and right half ring (2) is equipped with internal thread (6), the bottom of left half ring (1) and right half ring (2) is evenly equipped with several contact points (8) respectively, the just above of contact point (8) is equipped with indicating lamp (9), contact point (8) is electrically connected with indicating lamp (9).

2. An oil casing thread make-up inspection device according to claim 1, characterized in that: The end of left half ring (1) is equipped with several positioning columns (4), and the several positioning columns (4) are arranged longitudinally.

3. An oil casing thread make-up inspection device according to claim 2, characterized in that: The end of right half ring (2) is equipped with several positioning holes (5), and the several positioning holes (5) are arranged longitudinally.

4. An oil casing thread make-up inspection device according to claim 3, characterized in that: The several positioning holes (5) correspond to the several positioning columns (4).

5. An oil casing thread make-up inspection device according to claim 4, characterized in that: The positioning hole (5) and the positioning column (4) all have strong magnetism, and the magnetism of the positioning hole (5) and the positioning column (4) is opposite.

6. An oil casing thread make-up inspection device according to claim 1, characterized in that: The outside of left half ring (1) and right half ring (2) is respectively equipped with handle (7).

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