CN220378261U - Six-arm logging instrument inner wiring structure - Google Patents

Abstract

The utility model discloses an inner wiring structure of a six-arm logging instrument, which comprises a middle shell, a spring box and a motor main body, wherein one end of the middle shell is connected with the spring box, the other end of the middle shell is connected with the motor main body, a gland is respectively arranged on the middle shell and close to the motor main body, connecting holes are respectively arranged on opposite end surfaces of two opposite glands, the connecting holes of the spring box are communicated with the inside of the spring box, a circuit protection mechanism is connected between the two opposite connecting holes and is used for connecting the two connecting holes, and connecting circuits are penetrated and placed. Through gland and wiring pipe, form a built-in threading passageway on the logging instrument in this application, wear connecting wire put with the threading passageway in, put the arrangement to connecting wire, protection connecting wire's safety has improved the leakproofness of device, has obviously reduced the incidence of logging instrument trouble, has improved logging efficiency.

Description

Six-arm logging instrument inner wiring structure

Technical Field

The application relates to a six-arm logging instrument inner wiring structure, which belongs to the field of petroleum geological drilling equipment.

Background

The six-arm (microsphere microelectrode+borehole diameter) logging instrument is a logging instrument with the function of simultaneously measuring microsphere microelectrode and X-Y borehole diameter, and has extremely wide application in the fields of petroleum geological drilling and drilling engineering. The six-arm logging instrument can simultaneously measure formation electrical properties such as formation flushing resistivity, micropotential, micro gradient and the like in the use process, can also measure numerical values of a shaft in two vertical directions of X-Y, and provides a real and reliable scientific basis for geology and oil extraction in the petroleum exploration and development.

In order to reduce the time spent by logging the well to the greatest extent, the existing six-arm logging instrument is formed by an upper instrument and a lower instrument, the circuits between the upper instrument and the lower instrument are connected in an external wiring mode, namely, the spring box and the middle shell are provided with threading holes, two ends of the connecting circuit are respectively penetrated in the corresponding threading holes, and other positions except the end part of the connecting circuit are exposed outside the middle shell; after the logging instrument is used for a period of time, due to the action of the internal pressure of the well, gaps between the sealing plug and the threading hole and between the sealing plug and the connecting line are increased, leakage occurs, medium in the well can enter the logging instrument through the gaps under the action of the pressure, damage is caused to parts in the logging instrument, a plurality of fault points are caused to the logging instrument, the detection of the well hole is affected, and the time spent in logging is increased.

Disclosure of Invention

The utility model provides an internal wiring structure of a six-arm logging instrument, which solves the problem that the sealing performance of a sealing plug used at the connecting position of a connecting line, an upper instrument and a lower instrument in the existing six-arm logging instrument is poor, so that the logging instrument is easy to fail.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a walk line structure in six arm logging instrument, includes middle casing, spring case and motor main part, the spring case is connected to the one end of middle casing, and motor main part is connected to the other end, be close to on the middle casing motor main part's position be provided with the gland on the spring case respectively, two relative be provided with the connecting hole on the terminal surface that the gland is relative respectively, two connecting hole position on the gland is corresponding, the spring case the connecting hole with the inside intercommunication of spring case, two are relative be connected with circuit protection mechanism between the connecting hole, circuit protection mechanism is used for connecting two connecting hole to wear to put connecting wire.

Further, the line protection mechanism comprises a line pipe, a fixing piece is arranged on the outer wall of the line pipe and used for fixing the line pipe on the outer wall of the middle shell, and the connecting line is placed in the line pipe in a penetrating way

Further, an adapter is connected to one end of the middle shell, which is close to the motor main body, the gland on the middle shell, which is close to the position of the motor main body, is fixedly arranged on the outer wall of the adapter, a decompression chamber is arranged in the adapter, and the motor main body is installed in the decompression chamber and is communicated with the wiring pipe.

Further, the wiring pipe is filled with an isolation compression medium, the isolation compression medium flows between the inside of the spring box and the decompression chamber through the wiring pipe, and the pressure difference between the inside and the outside of the wiring pipe is reduced.

Further, the isolating compression medium is silicone oil.

The beneficial effects that this application can produce include:

1. through set up the gland on spring case and adapter outer wall in this application, set up the spool between the gland, form a built-in threading passageway through the cooperation of gland with the spool, and then put the connecting wire of upper portion instrument in the logging instrument with the lower part instrument in wearing to put and threading passageway, put the arrangement to connecting wire, the safety of protection connecting wire, gland and spool replace the sealing plug, do not need the sealing plug in this structure, then avoided using the sealing plug to seal, the equipment is because the emergence of revealing appears in the well internal pressure effect, the leakproofness of device has been improved, the incidence of logging instrument trouble has obviously been reduced, logging efficiency has been improved.

2. Through the cooperation of wiring pipe and gland in this application for upper portion instrument and lower instrument inner chamber intercommunication in the logging instrument, the logging instrument is in the use, if the pressure that logging instrument one end outside received is too big, then the inside depressurization medium of instrument can flow the inner chamber of other end instrument through wiring pipe, the pressure that the buffering outside received has increased the whole compressive strength of logging instrument, makes the instrument internal be applicable to the bigger borehole detection of pressure.

3. The sealing plug is replaced by the gland and the connection with the trend pipe, so that the use of the sealing plug in the device is reduced, and the manufacturing cost of the logging instrument is reduced.

4. In this application, be equipped with the silicone oil in the wiring pipe, avoid the pressure extrusion wiring pipe 3 in the well, and then make the wiring pipe take place to break, influence the use of logging instrument.

Drawings

FIG. 1 is a schematic diagram of an internal wiring structure of a six-arm logging tool provided in the present application;

FIG. 2 is a cross-sectional view at M-M in FIG. 1;

fig. 3 is a front cross-sectional view of a wiring structure in a six-arm logging tool provided herein.

In the figure: 1. a spring case; 2. an intermediate housing; 3. a wiring tube; 4. a gland; 40. a connection hole; 5. an annular sealing plug; 6. an adapter; 7. decompression chamber; 8. a fixing screw; 9. and a fixing piece.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the utility model discloses an internal wiring structure of a six-arm logging instrument, which comprises a middle shell 2, a spring box 1 and a motor main body, wherein one end of the middle shell 2 is connected with the spring box 1, the other end is connected with the motor main body, a gland 4 is correspondingly arranged on the middle shell 2 and close to the motor main body, four connecting grooves are arranged on the outer wall of the spring box 1, the gland 4 is fixedly connected in each connecting groove through a fixing screw 8, the outer wall of the gland 4 is in an arc shape which is matched with the shape of the outer wall of the middle shell 2 or the spring box 1, the inner end face is in a straight line shape and is arranged in the connecting groove, the outer wall is overlapped with the outer wall curve of the spring box 1, the connecting holes 40 of the gland 4 which are opposite to each other are respectively arranged at the central positions of the two connecting holes 40 are communicated with the inner part of the spring box 1, a line protection mechanism is connected between the two connecting holes 40, the line protection mechanism is used for connecting the two connecting holes 40, and penetrating connecting lines are arranged in the connecting lines, and the connecting lines arranged outside the logging instrument are integrated in the line protection mechanism, and the connecting lines arranged outside the logging instrument are changed into the connecting lines arranged inside the line protection; the gland 4 is used for replacing the original sealing plug in the logging instrument, the position, located on the connecting line, of the spring box 1 is sealed, the use of the sealing plug is reduced, the existing sealing plug is formed by firing high-temperature and high-pressure resistant ceramic through a complex process, the production cost of the logging instrument is reduced, leakage of the sealing plug after long-term use is avoided, external substances enter the logging instrument, damage is caused to parts in the logging instrument, and the modification times and the failure rate of the parts are reduced.

Preferably, the structure of the pressing plate 4 is an arc plate with a certain thickness, the connecting hole 40 is formed on the end surface of the arc plate 4 and is opened from the center position of the inner end surface of the pressing cover 4, namely the center line of the connecting hole 40 consists of a section of arc line and a section of straight line, and the straight line end in the center line of the connecting hole 40 is positioned on the side end surface of the pressing cover 4;

the other structure of the pressing plate 4 is an arc plate with thinner thickness, connecting plates are respectively and fixedly arranged at positions, close to two ends, on the inner end face of the pressing plate 4, the inner end face of each connecting plate is attached to the bottom end face of the mounting groove or the bottom end face of the connecting groove, the connecting holes 40 are formed in one connecting plate, and the connecting holes 40 penetrate through the end face, opposite to the other connecting plate, of the connecting plate.

Referring to fig. 1-3, the line protection mechanism comprises a line pipe 3, a fixing piece 9 is arranged on the outer wall of the line pipe 3, the fixing piece 9 is arc-shaped, the inner side wall of the line pipe can be attached to the outer wall of a middle shell 2, a threaded hole is formed in the outer side wall of the fixing piece 9, a mounting screw is arranged in the threaded hole to stably fix the line pipe 3 on the outer wall of the middle shell 2, connecting lines penetrate through the line pipe 3, the connecting lines arranged outside an existing logging instrument are tightened together through the line pipe 3, and then the line pipe 3 is used for protecting the logging instrument, so that the logging instrument is prevented from being scratched with some protrusions in a well hole in the use process, the connecting lines are damaged, and the integrity of the connecting lines is further protected.

Referring to fig. 1 and 3, an adaptor 6 is connected to an end head of the middle housing 2, which is close to the motor main body, four mounting grooves are formed in the outer wall of the adaptor 6, the four mounting grooves are formed in the outer wall of the adaptor 6 in a surrounding manner, the four mounting grooves are in one-to-one correspondence with the four connecting grooves, the pressure covers 4 are fixedly connected to the middle housing 2 through fixing screws 8 in each mounting groove, one pressure cover 4 is arranged in each mounting groove, namely, each pressure cover 4 is arranged on the adaptor 6, one pressure cover 4 is arranged on the spring box 1 and is opposite to the pressure cover, the opening ends of the connecting holes 40 in the two pressure covers 4 are opposite to each other, the center lines are collinear, a pressure reducing chamber 7 is arranged in the adaptor 6, the motor main body is arranged, parts in the motor main body can be connected, the positions of the corresponding mounting grooves are arranged on the inner wall of the pressure reducing chamber 7, the pressure reducing chamber 7 and one end head of the running pipe 3 are communicated through the wire holes, and when the well logging instrument is used, if the pressure of the two ends of the well logging instrument are different, the pressure measuring instrument is in the external channels, the pressure measuring instrument is greatly reduced in the whole pressure measuring instrument is used, and the pressure measuring instrument can be greatly increased in the well instrument.

Preferably, the decompression chamber 7 is internally provided with an annular sealing plug 5, the outer wall of the annular sealing plug 5 is attached to the inner wall of the decompression chamber 7, and the inner wall is attached to the outer wall of the motor body to seal between the decompression chamber 7 and the motor body.

Referring to fig. 2-3, the wiring tube 3 is filled with an isolation compression medium, and in the using process of the logging instrument, the wiring tube 3 is filled with the isolation compression medium, so that the pressure in a well bore can be prevented from extruding the wiring tube 3, and the wiring tube 3 is further broken, and the using of the device is affected; meanwhile, the isolation compression medium can not entangle the connecting lines in the wiring tube 3, so that the safety of the connecting lines is protected; and the isolated compression medium can flow between the inside of the spring case 1 and the decompression chamber 7 through the wiring tube 3, so that the compression strength of the logging instrument is increased, and the pressure difference between the inside and the outside of the wiring tube 3 is reduced.

Preferably, the silicone oil used for isolating the compression medium is the same as the oil filled in the logging instrument, so that the pressure regulation of the logging instrument is facilitated.

The foregoing is merely one embodiment of the present application, and is not intended to limit the application in any way, and any person skilled in the art may make various changes or modifications equivalent to the equivalent embodiments using the technical disclosure disclosed above without departing from the scope of the technical solutions of the present application.

Claims (5)

1. The utility model provides a walk line structure in six arm logging instrument, includes intermediate casing (2), spring case (1) and motor main part, spring case (1) is connected to the one end of intermediate casing (2), and motor main part is connected to the other end, a serial communication port, be close to on intermediate casing (2) motor main part's position be provided with gland (4) on spring case (1) respectively, two be provided with connecting hole (40) on the terminal surface that gland (4) are relative respectively, two connecting hole (40) position on gland (4) are corresponding, connecting hole (40) of gland (4) with be connected with line protection mechanism between spring case (1), line protection mechanism is used for connecting two connecting hole (40) to wear to put the connecting wire.

2. The six-arm logging tool inner wiring structure according to claim 1, wherein the line protection mechanism comprises a wiring pipe (3), a fixing piece (9) is arranged on the outer wall of the wiring pipe (3), the fixing piece (9) is used for fixing the wiring pipe (3) on the outer wall of the middle shell (2), and the connecting line is put through the wiring pipe (3).

3. The six-arm logging tool inner wiring structure according to claim 2, wherein an adapter (6) is connected to an end, close to the motor main body, of the middle casing (2), the gland (4), close to the motor main body, of the middle casing (2) is fixedly installed on the outer wall of the adapter (6), a decompression chamber (7) is arranged in the adapter (6), and the motor main body is installed in the decompression chamber (7) and is communicated with the wiring pipe (3).

4. A six-arm logging tool inner wiring structure according to claim 3, wherein the wiring pipe (3) is filled with an isolation compression medium, the isolation compression medium flows between the inside of the spring case (1) and the decompression chamber (7) through the wiring pipe (3), and the pressure difference between the inside and the outside of the wiring pipe (3) is reduced.

5. The six arm logging tool internal trace configuration of claim 4 wherein said isolation compression medium is silicone oil.