Plug conversion nipple for well logging

Abstract

The utility model relates to a plug conversion nipple for well logging, which comprises a shell, a guide sleeve is arranged in a cavity at one end in the shell, a spring is sleeved on the guide sleeve, a needle type conversion female socket is movably connected in the shell, and the needle type conversion female socket is in sliding connection with the end part of the guide sleeve and is elastically propped against the spring. A needle-type conversion female socket is arranged in a cavity at one end of the shell, a needle-type conversion male plug is arranged in a cavity at the other end in the shell, the needle-type conversion female socket and the needle-type conversion male plug are connected through a wire, a threaded sleeve is movably connected outside the shell on one side of the needle-type conversion female socket, and an annular clamping groove is formed in the periphery of the shell at the outer end of the threaded sleeve. A baffle ring clamped with the threaded sleeve and a clamping ring clamped with the baffle ring are arranged in the annular clamping groove, the outer portion of the clamping ring is held tightly through a spring clamping ring, a protective cap is arranged at one end of the shell and connected with the threaded sleeve in a threaded mode, and a screwed plug is arranged at the other end of the shell and connected with the shell in a threaded mode. The plug conversion nipple is convenient, small and portable. Instruments with different plug models are connected in series.

Description

Technical Field

[0001] The utility model relates to the field of petroleum well logging, in particular to a plug conversion nipple for well logging and a manufacturing method thereof. Background Art

[0002] At the oil well logging site, due to the different interfaces of the instrument connection, it is very likely to cause conflicts between male and female sockets; there are male plugs to male plugs, female sockets to female sockets, or male plugs and female sockets are different models; if the above problems occur, the operation will fail. Therefore, a special tool is needed to achieve smooth connection between logging instruments. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a plug conversion nipple for well logging, so as to realize the interconnection of well logging instruments with plugs of different models.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A plug conversion nipple for well logging comprises a shell, a guide sleeve is arranged in a cavity at one end of the shell, a spring is arranged on the guide sleeve, a pin-type conversion female socket is movably connected in the shell, the pin-type conversion female socket is slidably connected to the end of the guide sleeve and elastically connected to the spring, a pin-type conversion male plug is arranged in a cavity at the other end of the shell, the pin-type conversion female socket and the pin-type conversion male plug are connected by a wire, the shell outside one side of the pin-type conversion female socket is movably connected to a threaded sleeve, an annular groove is arranged on the outer periphery of the shell at the outer end of the threaded sleeve, a retaining ring clamped with the threaded sleeve and a retaining ring clamped with the retaining ring are arranged in the annular groove, the retaining ring is clamped with a spring retaining ring, a protective cap is arranged at one end of the shell and is threadedly connected with the threaded sleeve, and a threaded plug is arranged at the other end of the shell and is threadedly connected with the shell.

[0006] A positioning pin is arranged between the guide sleeve and the shell.

[0007] The pin-type conversion female socket is a LOG 31-pin female socket or a 29-pin female socket.

[0008] The pin-type conversion male plug is a 31-core standard male plug or a 29-core standard plug.

[0009] The pin-type conversion female socket is provided with a strip hole 1 and a strip hole 2, the strip hole 1 is slidably connected with a limit pin on the shell, the limit pin is connected to the shell by a positioning top screw, and the strip hole 2 is slidably connected with a positioning pin on the guide sleeve.

[0010] The pin-type conversion male plug is provided with a positioning plate of an integral structure, and the positioning plate and the shell are clamped with the groove in the shell through a spring block.

[0011] The retaining ring is a symmetrical split structure.

[0012] The clamping ring is a symmetrical split structure.

[0013] Compared with the existing technology, the beneficial effects of the utility model are:

[0014] 1) The plug conversion section is small and convenient for carrying. It can realize the series connection between instruments with different plug models.

[0015] 2) The plug conversion short section has good sealing performance. When the instruments are connected in series, it can ensure that mud will not enter the instrument and the circuit is conductive.

[0016] 3) The end of the plug conversion short section is equipped with a protective device to prevent damage during transportation.

[0017] 4) The plug conversion short section can be installed on site, and the threaded sleeve can rotate freely without being restricted by the length of the short section. The installation can be completed by one person, and it is easy to disassemble and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 This is a structural diagram inside the shell.

[0020] Figure 3 This is the structural diagram of the pin-type conversion female socket.

[0021] Figure 4 It is a cross-sectional view of the pin conversion female socket.

[0022] Figure 5 Schematic diagram of the threaded sleeve.

[0023] Figure 6 Schematic diagram of the retaining ring.

[0024] Figure 7 A cross-sectional view of the retaining ring.

[0025] Figure 8 A schematic diagram of a retaining ring.

[0026] Fig. 9 A schematic diagram of a retaining ring.

[0027] Fig.10 A schematic diagram of a spring retaining ring.

[0028] In the figure: housing 1, guide sleeve 2, spring 3, pin-type conversion female socket 4, pin-type conversion male plug 5, wire 6, threaded sleeve 7, annular groove 8, retaining ring 9, retaining ring 10, protective cap 11, wire plug 12, positioning pin 13, long hole 14, long hole 2 15, limit pin 16, positioning top screw 17, positioning plate 18, spring block 19, groove 20, spring retaining ring 21. DETAILED DESCRIPTION

[0029] In the description of the present invention, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means more than two.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0031] like Figure 1-Figure 10 A plug conversion nipple for logging comprises a shell 1, a guide sleeve 2 is arranged in a cavity at one end of the shell 1, a spring 3 is sleeved on the guide sleeve 2, a pin-type conversion female socket 4 is movably connected in the shell 1, the pin-type conversion female socket 4 is slidably connected to the end of the guide sleeve 2, and is elastically connected to the spring 3, a pin-type conversion male plug 5 is arranged in a cavity at the other end of the shell 1, the pin-type conversion female socket 4 and the pin-type conversion male plug 5 are connected by a wire 6, the shell 1 on one side of the pin-type conversion female socket 4 is movably connected to a threaded sleeve 7, an annular groove 8 is arranged on the outer periphery of the shell 1 at the outer end of the threaded sleeve 7, a retaining ring 9 engaged with the threaded sleeve 7 and a retaining ring 10 engaged with the retaining ring 9 are arranged in the annular groove 8, and the retaining ring 10 is clamped with a spring retaining ring 21 on the outside.

[0032] One end of the housing 1 is provided with a protective cap 11 which is threadedly connected to the threaded sleeve 7, and the other end of the housing 1 is provided with a thread plug 12 which is threadedly connected to the housing 1. The thread on the surface of the threaded sleeve 7 is consistent with the thread specification of a conventional logging tool.

[0033] A positioning pin 13 is provided between the guide sleeve 2 and the housing 1 .

[0034] The pin-type conversion female socket 4 is a LOG 31-pin female socket or a 29-pin female socket, and the pin-type conversion male plug 5 is a 31-pin standard male plug or a 29-pin standard male plug.

[0035] The pin-type conversion female socket 4 is provided with a long hole 14 and a long hole 2 15, the long hole 14 is slidably connected to the limit pin 16 on the shell 1, the limit pin 16 is connected to the shell 1 by a positioning top screw 17, and the long hole 2 15 is slidably connected to the positioning pin 13 on the guide sleeve 2.

[0036] The pin-type conversion male plug 5 is provided with a positioning plate 18 of an integral structure, and the positioning plate 18 and the housing 1 are clamped with the groove in the housing 1 through a spring block 19 .

[0037] The retaining ring 9 is a symmetrical split structure.

[0038] The clamping ring 10 is a symmetrical split structure.

[0039] In order to make the purpose, technical scheme and technical effect of the utility model clearer, the technical scheme in the embodiment of the utility model is now described clearly and completely. However, the embodiment described below is only a part of the embodiment of the utility model, not all of the embodiments. In combination with the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] Example

[0041] A plug conversion nipple for well logging includes a housing 1, a guide sleeve 2 is arranged in a cavity at one end of the housing 1, a spring 3 is sleeved on the guide sleeve 2, a pin-type conversion female socket 4 is arranged on one side of the spring 3 and is movably sleeved on the end of the guide sleeve 2, and a positioning pin 13 is arranged between the guide sleeve 2 and the housing 1. The pin-type conversion female socket 4 is a LOG thirty-one-core female socket (E52-31-ZK), and a long hole 14 and a long hole 2 15 are arranged on the pin-type conversion female socket 4, the long hole 14 is slidably connected with a limit pin 16 on the housing 1, the limit pin 16 is connected to the housing 1 by a positioning top screw 17, and the long hole 2 15 is slidably connected with the positioning pin 13.

[0042] A pin-type conversion male plug 5 is disposed in the cavity at the other end of the housing 1. The pin-type conversion male plug 5 is a 31-pin standard male plug (YQ.31GMJ30-1.2J / 1.8H-44). An integral positioning plate 18 is disposed on the pin-type conversion male plug 5. The positioning plate 18 and the housing 1 are clamped with a groove 20 in the housing 1 through a spring block 19.

[0043] The pin-type conversion female socket 4 and the pin-type conversion male plug 5 are connected by a wire 6. The outer shell 1 on one side of the pin-type conversion female socket 4 is movably connected to the threaded sleeve 7. The outer periphery of the shell 1 at the outer end of the threaded sleeve 7 is provided with an annular groove 8. The annular groove 8 is provided with a retaining ring 9 and a retaining ring 10 that are engaged with the threaded sleeve 7. The retaining ring 9 and the retaining ring 10 are both symmetrical split structures. The outer part of the retaining ring 10 is held tightly by a spring retaining ring 21.

[0044] A protective cap 11 is provided at one end of the housing 1 and is threadedly connected to the threaded sleeve 7 , and a thread plug 12 is provided at the other end of the housing 1 and is threadedly connected to the housing 1 .

[0045] Application examples:

[0046] Use a plug conversion nipple to connect the logging sonic instrument and the relevant display equipment on the logging vehicle, use the LOG 31-pin female socket to connect to the logging sonic instrument, and use the 31-pin standard male plug to connect to the relevant display equipment on the logging vehicle.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and basic spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plug conversion nipple for well logging, characterized in that: The utility model comprises a shell, a guide sleeve is arranged in a cavity at one end of the shell, a spring is arranged on the guide sleeve, a pin-type conversion female socket is movably connected in the shell, the pin-type conversion female socket is slidably connected to the end of the guide sleeve and elastically connected to the spring, a pin-type conversion male plug is arranged in a cavity at the other end of the shell, the pin-type conversion female socket and the pin-type conversion male plug are connected by a wire, the shell outside one side of the pin-type conversion female socket is movably connected to a threaded sleeve, an annular groove is arranged on the outer periphery of the shell at the outer end of the threaded sleeve, a retaining ring clamped with the threaded sleeve and a retaining ring clamped with the retaining ring are arranged in the annular groove, the outer side of the retaining ring is clamped with a spring retaining ring, a protective cap is arranged at one end of the shell and is threadedly connected with the threaded sleeve, and a threaded plug is arranged at the other end of the shell and is threadedly connected with the shell.

2. The plug conversion sub for well logging according to claim 1, characterized in that: A positioning pin is arranged between the guide sleeve and the shell.

3. The plug conversion sub for well logging according to claim 1, characterized in that: The pin-type conversion female socket is a LOG 31-pin female socket or a 29-pin female socket.

4. The plug conversion sub for well logging according to claim 1, characterized in that: The pin-type conversion male plug is a 31-core standard male plug or a 29-core standard plug.

5. The plug conversion sub for well logging according to claim 1, characterized in that: The pin-type conversion female socket is provided with a strip hole 1 and a strip hole 2, the strip hole 1 is slidably connected with a limit pin on the shell, the limit pin is connected to the shell by a positioning top screw, and the strip hole 2 is slidably connected with a positioning pin on the guide sleeve.

6. The plug conversion sub for well logging according to claim 1, characterized in that: The pin-type conversion male plug is provided with a positioning plate of an integral structure, and the positioning plate and the shell are clamped with the groove in the shell through a spring block.

7. The well logging plug conversion sub according to claim 1, characterized in that: The retaining ring is a symmetrical split structure.

8. The plug conversion sub for well logging according to claim 1, characterized in that: The clamping ring is a symmetrical split structure.

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