CN213063557U - Near-bit launching short-circuit assembly - Google Patents
Near-bit launching short-circuit assembly Download PDFInfo
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- CN213063557U CN213063557U CN202021896843.1U CN202021896843U CN213063557U CN 213063557 U CN213063557 U CN 213063557U CN 202021896843 U CN202021896843 U CN 202021896843U CN 213063557 U CN213063557 U CN 213063557U
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Abstract
The utility model relates to a nearly drill bit transmission short circuit assembly. This transmission shell body of nearly drill bit transmission short circuit assembly is provided with the first through-hole that link up along its central axis, first through-hole is the column, the radial global to the transmission shell body of transmission shell body is followed at the middle part of first through-hole to the middle part of first through-hole, the internal diameter of sealing sleeve is unanimous with the internal diameter of first through-hole, sealing sleeve and installation cavity enclose into the electron storehouse, be provided with electron device in the electron storehouse, the transmission sleeve has the second through-hole that link up along its central axis, the coaxial and intercommunication setting of second through-hole and first through-hole, it has communication module to integrate in the section of thick bamboo wall of transmission sleeve, the one end detachably of transmission sleeve cup joints on the one end of transmission shell body. The utility model discloses can guarantee the leakproofness of the installation environment that the electron device in the electron storehouse was located to can reach the purpose of the quick maintenance of transmission short circuit assembly, have fine practicality.
Description
Technical Field
The utility model belongs to the technical field of the geological survey, especially, relate to a nearly drill bit transmission short circuit assembly.
Background
As the development of the oil field enters the later stage, the developed oil layer is thinner and thinner, and the difficulty is increased gradually. In order to maintain higher oil layer drilling rate in a thin oil layer, a near-bit drilling instrument is necessary.
In the prior art, the near-bit while-drilling instrument comprises a while-drilling logging instrument, a screw drilling tool and a drill bit which are sequentially and coaxially arranged from top to bottom, the upper end of the while-drilling logging instrument is connected with a drill rod, a coaxial transmitting short section is fixedly arranged between the drill bit and the screw drilling tool, a coaxial receiving short section is fixedly arranged between the while-drilling logging instrument and the screw drilling tool, a transmitting short section transmits a signal, a receiving short section receives the signal, the signal is processed and then transmitted to the while-drilling logging instrument, and the while-drilling logging instrument transmits the received signal to an uphole pressure sensing unit.
In the course of implementing the present invention, the applicant has found that there are at least the following disadvantages in the prior art:
in the prior art, the near-bit while-drilling instrument acts underground while drilling, is influenced by friction and the like of a side wall of a drilling hole in the actual drilling process, and is easy to damage a transmitting short section.
How to maintain the transmitting short section of a near-bit while-drilling instrument quickly after the transmitting short section is damaged and ensure the sealing performance of an electronic device and a working power supply are still insufficient in the prior art, and therefore the prior art needs to be improved.
SUMMERY OF THE UTILITY MODEL
Not enough to above-mentioned prior art exists, the utility model provides a nearly drill bit transmission short circuit assembly to realize the transmission short section of nearly drill bit along with boring instrument and in the quick maintenance after the damage, and can guarantee electron device and working power supply installation environment's leakproofness.
The technical scheme of the utility model is that:
a near bit firing sub assembly comprising:
the transmitting outer shell is provided with a through first through hole along the central axis of the transmitting outer shell, the first through hole is columnar, and the middle part of the first through hole extends to the peripheral surface of the transmitting outer shell along the radial direction of the transmitting outer shell to form an installation cavity;
the sealing sleeve is coaxially arranged in the middle of the first through hole, the inner diameter of the sealing sleeve is consistent with that of the first through hole, the sealing sleeve and the mounting cavity enclose an electronic cabin, and an electronic device is arranged in the electronic cabin;
the transmitting sleeve is provided with a through second through hole along the central axis thereof, the second through hole and the first through hole are coaxial and communicated, a communication module is integrated in the wall of the transmitting sleeve, and one end of the transmitting sleeve is detachably sleeved on one end of the transmitting outer shell.
Furthermore, one end, back to the emission sleeve, of the sealing sleeve extends out of the installation cavity, and a sealing sleeve is arranged between one end, back to the emission sleeve, of the sealing sleeve and the side wall of the first through hole.
Furthermore, one end, back to the emission sleeve, of the sealing sleeve is provided with a connecting plate.
Furthermore, a plurality of first sealing rings are arranged between the sealing sleeve and the sealing sleeve.
Furthermore, one end, facing the emission sleeve, of the sealing sleeve extends out of the emission outer shell, a baffle is arranged at one end, facing the emission sleeve, of the sealing sleeve along the radial direction of the emission outer shell, and the baffle abuts against and is arranged between one end of the emission outer shell and the emission sleeve.
Furthermore, one end of the launching outer shell is provided with a slot, and the baffle abuts against and is arranged between the outer end of the inner side of the slot and the launching sleeve.
Further, a plurality of second sealing rings are arranged between one end, facing the launching sleeve, of the sealing sleeve and the inner side wall of the slot.
Further, one end of the launching sleeve is provided with a connecting part, and the connecting part is in threaded connection with the slot.
Furthermore, the other end of the launching shell body is provided with a connecting bulge, the connecting bulge is in a frustum shape, and threads are arranged on the circumferential surface of the connecting bulge.
Furthermore, the other end of the emission sleeve is provided with a connecting groove, the connecting groove is in a frustum shape, and threads are arranged on the inner wall of the connecting groove.
The utility model has the advantages that:
the utility model provides a nearly drill bit transmission short circuit assembly, because the transmission shell body is provided with the first through-hole that link up along its central axis, the middle part of first through-hole is followed the radial global extension to the transmission shell body of transmission shell body, form the installation cavity, and the coaxial setting of sealing sleeve is at the middle part of first through-hole, sealing sleeve's internal diameter is unanimous with the internal diameter of first through-hole, sealing sleeve and installation cavity enclose into the electron storehouse, sealed setting promptly in this electron storehouse, can guarantee the leakproofness of the installation environment that the electron device in the electron storehouse was located.
Because the integrated communication module that has in the section of thick bamboo wall of transmission sleeve, the one end detachably of transmission sleeve cup joints one of transmission shell body and serves, and after the device in transmission sleeve or the transmission shell body took place the harm, can change the transmission sleeve or the transmission shell body of harm to get the transmission sleeve of normal work or the transmission shell body assembly and continue to use to nearly drill bit transmission short circuit assembly, thereby can reach the purpose of the quick maintenance of transmission short circuit assembly, have fine practicality.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a near bit firing short circuit assembly according to the present embodiment;
fig. 2 is a schematic cross-sectional view of fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of a near bit firing short circuit assembly of the present embodiment, and fig. 2 is a schematic sectional diagram of fig. 1, and with reference to fig. 1 and fig. 2, the near bit firing short circuit assembly of the present embodiment includes a firing outer housing 1, a sealing sleeve 2, and a firing sleeve 3.
With reference to fig. 1 and fig. 2, the whole transmitting outer casing 1 of the present embodiment is a column, the transmitting outer casing 1 is provided with a first through hole 4 penetrating through along the central axis thereof, the first through hole 4 is a column, and the middle of the first through hole 4 extends along the radial direction of the transmitting outer casing 1 to the circumferential surface of the transmitting outer casing 1 to form an installation cavity. The coaxial setting of sealing sleeve 2 is in the middle part of first through-hole 4, and the internal diameter of sealing sleeve 2 is unanimous with the internal diameter of first through-hole 4, and sealing sleeve 2 encloses into electron storehouse 5 with the installation cavity, can make this electron storehouse 5 sealed setting promptly, is provided with electron device 6 in the electron storehouse 5, and then can guarantee the leakproofness of the installation environment that electron device 6 in the electron storehouse 5 was located to prevent that mud from getting into electron storehouse 5 and causing electron device 6 to damage.
Combine fig. 1 and fig. 2, the transmission sleeve 3 of this embodiment has the second through-hole 7 that link up along its central axis, second through-hole 7 and the coaxial and intercommunication setting of first through-hole 4, the integrated communication module 8 that has in the section of thick bamboo wall of transmission sleeve 3, the one end detachably of transmission sleeve 3 cup joints one of transmission shell body 1 and serves, after the device in transmission sleeve 3 or the transmission shell body 1 takes place to harm, can change the transmission sleeve 3 or the transmission shell body 1 of harm, and get the transmission sleeve 3 or the transmission shell body 1 of normal work and assemble and continue to use on nearly drill bit transmission short circuit assembly, thereby can reach the purpose of the quick maintenance of transmission short circuit assembly, and has good practicality.
With reference to fig. 1 and fig. 2, an end of the sealing sleeve 2 facing away from the emission sleeve 3 extends out of the mounting cavity, and a sealing sleeve 9 is disposed between an end of the sealing sleeve 2 facing away from the emission sleeve 3 and a side wall of the first through hole 4, so as to further improve the sealing performance in the electronic cabin.
Further, referring to fig. 2, in this embodiment, a connecting plate 10 is disposed at an end of the sealing sleeve 9 facing away from the emission sleeve 3, so that the sealing sleeve 9 can be prevented from falling off during use, and the sealing performance in the electronic cabin can be further improved.
In this embodiment, the sealing sleeve 9 and the connecting plate 10 may be integrally formed, and may also limit the sealing sleeve 2.
Preferably, with reference to fig. 2, in this embodiment, a plurality of first sealing rings 11 are disposed between the sealing sleeve 9 and the sealing sleeve 2, so as to improve the sealing performance in the electronic cabin.
With reference to fig. 2, in this embodiment, the one end of the sealing sleeve 2 facing the transmitting sleeve 3 extends out of the transmitting outer casing 1, the one end of the sealing sleeve 2 facing the transmitting sleeve 3 is provided with a baffle 12 along the radial direction of the transmitting outer casing 1, the baffle 12 abuts against the one end of the transmitting outer casing 1 and the transmitting sleeve 3, so that the sealing sleeve 2 can be installed in the transmitting outer casing 1 through the limitation of the sealing sleeve 9 and the baffle 12, and this way is a movable installation way, so as to facilitate the disassembly of the sealing sleeve 2 and the sealing sleeve 9, and further facilitate the maintenance of the electronic device.
Referring to fig. 2, in the present embodiment, a slot 13 is disposed at one end of the launching outer casing 1, and the baffle 13 is abutted between the outer end of the inner side of the slot 13 and the launching sleeve 3.
With reference to fig. 2, in this embodiment, one end of the launching sleeve 3 is provided with a connecting portion 15, and the connecting portion 15 is screwed into the slot 13, so as to achieve detachable connection between the launching sleeve 3 and the launching shell 1.
Further, referring to fig. 2, in the present embodiment, a plurality of second sealing rings 14 are disposed between the connecting portion 15 of the launching sleeve 3 and the slot 13 to improve the reliability of the connection therebetween.
In this embodiment, the outer peripheral surface of the transmitting sleeve 3 may be provided with a mounting groove in which an antenna sleeve for communication, a magnetic stripe, and the like are provided, and the sealing groove is sealed by a cover plate.
Further, with reference to fig. 1 and fig. 2, in the present embodiment, the other end of the launching outer casing 1 is provided with a connecting protrusion 16, the connecting protrusion 16 is in a frustum shape, and the circumferential surface of the connecting protrusion 16 is provided with a thread, so that the launching outer casing 1 and the screw drill can be detachably connected.
Similarly, referring to fig. 1 and 2, in this embodiment, the other end of the launching sleeve 3 is provided with a connecting groove 17, the connecting groove 17 is in a frustum shape, and the inner wall of the connecting groove 17 is also provided with threads, so as to connect the launching outer shell 1 with a drill bit.
The assembly process of the near-bit launching short-circuit assembly of the embodiment comprises the following steps: firstly, sleeving a sealing sleeve 9 into the emission outer shell 1 from one end of the emission outer shell 1 facing the emission sleeve 3; then the electronic device 6 is mounted in the electronic magazine; then the sealing sleeve 2 is sleeved into the emission outer shell 1 from one end of the emission outer shell 1 facing the emission sleeve 3 so as to seal the electronic cabin; and finally, the transmitting sleeve 3 integrated with the communication module is inserted into the slot in a threaded manner and then is forced, so that the operation is convenient and fast.
The following embodiments are preferred embodiments of the present invention, which are only used to facilitate the description of the present invention, and are not intended to limit the present invention in any form, and any person who knows commonly in the art can use the present invention to make local changes or modifications within the scope of the technical features of the present invention, and the technical features of the present invention are not separated from the present invention.
Claims (10)
1. A near bit firing sub assembly, comprising:
the transmitting outer shell is provided with a through first through hole along the central axis of the transmitting outer shell, the first through hole is columnar, and the middle part of the first through hole extends to the peripheral surface of the transmitting outer shell along the radial direction of the transmitting outer shell to form an installation cavity;
the sealing sleeve is coaxially arranged in the middle of the first through hole, the inner diameter of the sealing sleeve is consistent with that of the first through hole, the sealing sleeve and the mounting cavity enclose an electronic cabin, and an electronic device is arranged in the electronic cabin;
the transmitting sleeve is provided with a through second through hole along the central axis thereof, the second through hole and the first through hole are coaxial and communicated, a communication module is integrated in the wall of the transmitting sleeve, and one end of the transmitting sleeve is detachably sleeved on one end of the transmitting outer shell.
2. The near bit firing sub assembly of claim 1 wherein an end of the sealing sleeve facing away from the firing sleeve extends out of the mounting cavity, and a sealing boot is disposed between the end of the sealing sleeve facing away from the firing sleeve and the sidewall of the first through bore.
3. The near bit firing sub assembly of claim 2 wherein an end of the sealing boot facing away from the firing sleeve is provided with a connecting plate.
4. The near bit firing sub assembly of claim 2, wherein a plurality of first seal rings are disposed between the seal cartridge and the seal sleeve.
5. The near bit firing sub assembly of claim 2, wherein an end of the sealing sleeve facing the firing sleeve extends out of the firing outer housing, and a stop is disposed at an end of the sealing sleeve facing the firing sleeve along a radial direction of the firing outer housing, the stop being disposed against an end of the firing outer housing and the firing sleeve.
6. The near bit firing sub assembly of claim 5, wherein the firing outer housing has a slot disposed at one end thereof, and the stop is disposed against an outer end of an inner side of the slot and between the firing sleeve.
7. The bit firing sub assembly of claim 6, wherein a second plurality of sealing rings are disposed between an end of the sealing sleeve facing the firing sleeve and an inner sidewall of the slot.
8. The near bit firing sub assembly of claim 6, wherein the firing sleeve is provided at one end with a connecting portion that is threaded into the slot.
9. The near-bit launching sub assembly according to any one of claims 1-8, wherein the other end of the launching outer housing is provided with a connecting protrusion, the connecting protrusion is in a frustum shape, and the periphery of the connecting protrusion is provided with threads.
10. The near bit firing sub assembly of any one of claims 1-8, wherein the other end of the firing sleeve is provided with a connecting groove, the connecting groove is frustum-shaped, and the inner wall of the connecting groove is threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021896843.1U CN213063557U (en) | 2020-09-03 | 2020-09-03 | Near-bit launching short-circuit assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021896843.1U CN213063557U (en) | 2020-09-03 | 2020-09-03 | Near-bit launching short-circuit assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213063557U true CN213063557U (en) | 2021-04-27 |
Family
ID=75555905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021896843.1U Active CN213063557U (en) | 2020-09-03 | 2020-09-03 | Near-bit launching short-circuit assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213063557U (en) |
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2020
- 2020-09-03 CN CN202021896843.1U patent/CN213063557U/en active Active
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