Double-male joint copper bush drawing device for rotary guide instrument

Abstract

The utility model discloses a drawing device for a copper sleeve of a double-male joint of a rotary guide instrument, which comprises an iron hoop, a threaded hole is arranged in one end of the iron hoop, a bulge structure is arranged at the other end of the iron hoop, and the bulge structure can be clamped in a sealing ring groove of the copper sleeve of the double-male joint of the rotary guide instrument; the screw rod is in threaded connection with the threaded hole; one end of the ball base is in direct contact with the rotary guide instrument, and the other end of the ball base abuts against the screw; during use, the ball base is fixed to the circle center of the cross section of the copper sleeve and the double-male connector, then the protruding structure of the iron hoop is clamped into the sealing ring groove of the copper sleeve, meanwhile, the screw rod is rotated, the rotating screw rod generates a stroke to drive the iron hoop to move upwards, and then the iron hoop drives the copper sleeve to be pulled away from the rotating guide instrument body. The force for rotating the screw rod is converted into the force for uniformly drawing the copper bush outwards in the axial direction, so that the copper bush cannot be damaged, a worker can be conveniently and quickly assisted in picking the copper bush, the copper bush picking difficulty can be reduced, and the copper bush picking efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary guide instrument machinery, in particular to a double male joint copper sleeve puller for a rotary guide instrument. Background Art

[0002] Rotary steerable instruments, or rotary steerable instruments, are high-tech equipment in the field of petroleum engineering. Copper sleeves are installed at both ends of the double male connector of the rotary steerable instrument, extending from the male connector, for centering and sealing purposes. O-rings are installed on the inner and outer walls of the copper sleeves to ensure resistance to high-pressure erosion. After the double male connector is used, the copper sleeves are exposed to high pressure downhole, and mud accumulates between the inner wall of the sleeves and the rotary steerable instrument body, causing them to adhere tightly to each other.

[0003] In the process of implementing the technical method of the embodiment of the utility model, the inventors of this application found that there are at least the following technical problems in the prior art:

[0004] To remove the copper sleeve, the staff used simple tools such as screwdrivers to manually remove it. However, since the copper sleeve was tightly adhered to the main body of the rotary guide instrument, it was difficult to remove the copper sleeve manually, resulting in low work efficiency.

[0005] In summary, the existing copper sleeve removal tools cannot meet actual usage requirements. Utility Model Content

[0006] The embodiment of the utility model provides a copper sleeve puller with double male connectors for a rotary guide instrument, which solves the problem that existing copper sleeve removal tools cannot meet actual use requirements.

[0007] On the one hand, an embodiment of the present invention provides a double male connector copper sleeve puller for a rotary guide instrument, comprising:

[0008] An iron hoop, one end of which is provided with a threaded hole, and the other end of which is provided with a protruding structure, wherein the protruding structure can be clamped in the sealing ring groove of the copper sleeve of the double male connector of the rotary guide instrument;

[0009] a screw, threadedly connected to the threaded hole;

[0010] A ball base, one end of which is in direct contact with the rotary guide instrument and the other end of which is in abutment with the screw;

[0011] When in use, first fix the ball base to the center of the cross section of the copper sleeve and the double male connector, then insert the raised structure of the iron hoop into the sealing ring groove of the copper sleeve, and rotate the screw at the same time. The rotating screw generates a stroke to drive the iron hoop to move upward, and then the iron hoop drives the copper sleeve to be pulled out of the rotary guide instrument body.

[0012] Optionally, the iron hoop specifically includes:

[0013] The iron shell assembly includes two semicircular iron shells, the inner wall of the top of each semicircular iron shell is processed with a thread, and the inner wall of each semicircular iron shell is provided with a semicircular ridge-shaped protrusion;

[0014] The iron ring is sleeved around the iron shell assembly to clamp the two semicircular iron shells.

[0015] Optionally, the amplitude of the prismatic protrusion is 3 mm.

[0016] Optionally, the ball bearing base specifically includes:

[0017] Ball bearing piece, used to reduce friction when rotating the screw;

[0018] A first ball track piece and a second ball track piece are used to clamp the ball bearing piece;

[0019] The ball fixing base is used to carry the ball bearing piece, the first ball track piece and the second ball track piece.

[0020] Optionally, the puller further includes:

[0021] The raising frame is arranged at the bottom of the ball base.

[0022] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0023] The double male connector copper sleeve puller of the rotary guide instrument of the utility model converts the force of the rotating screw into a force that uniformly pulls the copper sleeve outward along the axial direction, which does not damage the copper sleeve and can conveniently and quickly assist the staff to remove the copper sleeve, thereby reducing the difficulty of removing the copper sleeve and improving the efficiency of copper sleeve removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a disassembled diagram of the components of a double male connector copper sleeve puller for a rotary guide instrument in one embodiment of the present utility model;

[0025] Figure 2 This is a structural diagram of a double male connector copper sleeve puller for a rotary guide instrument in one embodiment of the present utility model;

[0026] Figure 3 This is a cross-sectional view of a double male connector copper sleeve puller for a rotary guide instrument in one embodiment of the present invention;

[0027] In the figure: 10-iron hoop; 101-iron shell assembly; 1011-threaded hole; 1012-protruding structure; 102-iron ring; 20-screw; 301 ball bearing piece; 302-first ball track piece; 303-second ball track piece; 304-ball fixing base; 40-heightening frame. DETAILED DESCRIPTION

[0028] The embodiment of the utility model provides a copper sleeve puller with double male connectors for a rotary guide instrument, which solves the problem that existing copper sleeve removal tools cannot meet actual use requirements.

[0029] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0030] To better understand the aforementioned rotary guide instrument double male connector copper sleeve puller, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. Obviously, the embodiments described herein represent only a portion of the embodiments, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments herein without inventive effort are also within the scope of protection of this utility model.

[0031] (1) Structure of the double male connector copper sleeve puller for rotary guide instrument

[0032] Please refer to the following Figure 1-Figure 3 , a double male joint copper sleeve puller of a rotary guide instrument in an embodiment of the present utility model is described in detail.

[0033] The utility model discloses a double-male-joint copper sleeve puller for a rotary guide instrument, which comprises an iron hoop 10 , a screw rod 20 , a ball bearing base and a heightening frame 40 .

[0034] One end of the iron hoop 10 is provided with a threaded hole 1011, and the other end is provided with a protrusion 1012. Protrusion 1012 can be locked into the sealing ring groove of the copper sleeve of the double male connector of the rotary guide instrument. The iron hoop 10 specifically comprises an iron shell assembly 101 and an iron ring. The iron shell assembly 101 comprises two semicircular iron shells, each with a threaded inner wall and a semicircular ridge-like protrusion on the inner wall. The iron ring 102 is fitted around the iron shell assembly 101 to enclose the two semicircular iron shells. When the protrusion structure 1012 is inserted into the sealing ring groove of the copper sleeve of the double male connector of the rotary guide instrument, the prismatic protrusions of the two semicircular iron shells are first aligned with the sealing ring groove on the outside of the copper sleeve to be removed, and then the two semicircular iron shells are combined to form the iron shell assembly 101. Finally, the closed iron ring 102 is placed around the iron shell assembly 101 to prevent the two semicircular iron shells from being stretched apart by the screw 20 during use. The amplitude of the prismatic protrusion is 3mm. In actual application, different amplitude values can be set according to the size of the copper sleeve sealing ring groove, such as 2.5mm, 3.5mm, 4mm, etc., but this is not limited by the present invention.

[0035] The screw rod 20 is threadedly connected to the threaded hole 1011 .

[0036] One end of the ball bearing base is in direct contact with the rotary guide instrument, and the other end is in contact with the screw (20). The ball bearing base specifically includes a ball bearing piece 301, a first ball bearing track piece 302, a second ball bearing track piece 303, and a ball fixing base 304. The ball bearing piece 301 is used to reduce the friction force when rotating the screw 20. The first ball bearing track piece 302 and the second ball bearing track piece 303 are used to clamp the ball bearing piece 301 and adjust the initial gap so that the protruding structure 1012 fits exactly into the sealing ring groove of the copper sleeve. The ball fixing base 304 is used to support the ball bearing piece 301, the first ball bearing track piece 302, and the second ball bearing track piece 303.

[0037] A raised frame 40 is installed at the bottom of the ball bearing base. This is an optional accessory and is determined by the actual location of the copper sleeve's sealing ring groove. If the sealing ring groove is located above the copper sleeve, the raised frame 40 is required; if the sealing ring groove is located below the copper sleeve, the raised frame 40 is not required.

[0038] (2) Working principle of the double male connector copper sleeve puller of the rotary guide instrument

[0039] During use, the ball bearing base is first fixed to the center of the cross section of the copper sleeve and the double male connector. The raised structure 1012 of the iron hoop 10 is then inserted into the sealing ring groove of the copper sleeve. At the same time, the screw 20 is rotated. The rotating screw 20 generates a stroke that drives the iron hoop 10 upward, and then the iron hoop 10 drives the copper sleeve to be pulled out of the rotary guide instrument body. In this case, the screw 20 is screwed into the iron hoop 10 by clamping the hexagonal head at the top of the screw 20 with a wrench and rotating it clockwise. When the screw 20 reaches the bottom, it continues to rotate. Due to the action of the ball bearing base, the iron hoop 10 will move upward, thereby driving the copper sleeve out of the double male connector.

[0040] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A double male connector copper sleeve puller for a rotary guide instrument, characterized in that: include: An iron hoop (10) has a threaded hole (1011) at one end and a protruding structure (1012) at the other end, wherein the protruding structure (1012) can be clamped in a sealing ring groove of a copper sleeve of a double male connector of a rotary guide instrument; A screw (20) is threadedly connected to the threaded hole (1011); A ball base, one end of which is in direct contact with the rotary guide instrument and the other end of which is in abutment with the screw (20); When in use, the ball base is first fixed to the center of the cross section of the copper sleeve and the double male connector, and then the protruding structure (1012) of the iron hoop (10) is inserted into the sealing ring groove of the copper sleeve, and the screw (20) is rotated at the same time. The rotating screw (20) generates a stroke to drive the iron hoop (10) to move upward, and then the iron hoop (10) drives the copper sleeve to be pulled away from the rotary guide instrument body.

2. The copper sleeve puller according to claim 1, characterized in that: The iron hoop (10) specifically comprises: An iron shell assembly (101) comprises two semicircular iron shells, wherein the inner wall of the top of each semicircular iron shell is processed with a thread, and the inner wall of each semicircular iron shell is provided with a semicircular ridge-shaped protrusion; The iron ring (102) is sleeved around the iron shell assembly (101) to enclose the two semicircular iron shells.

3. The copper sleeve puller according to claim 2, characterized in that: The amplitude of the prismatic protrusion is 3 mm.

4. The copper sleeve puller according to claim 1, characterized in that: The ball bearing base specifically comprises: A ball bearing sheet (301) for reducing friction when rotating the screw (20); A first ball track piece (302) and a second ball track piece (303) are used to clamp the ball bearing piece (301); The ball fixing base (304) is used to carry the ball bearing piece (301), the first ball track piece (302) and the second ball track piece (303).

5. The copper sleeve puller according to claim 1, characterized in that: The puller further comprises: The heightening frame (40) is arranged at the bottom of the ball bearing base.

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