CN112696158B - A attach fitting that is used for intelligence drilling rod downhole tool power supply and data transmission - Google Patents
A attach fitting that is used for intelligence drilling rod downhole tool power supply and data transmission Download PDFInfo
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- CN112696158B CN112696158B CN202011576902.1A CN202011576902A CN112696158B CN 112696158 B CN112696158 B CN 112696158B CN 202011576902 A CN202011576902 A CN 202011576902A CN 112696158 B CN112696158 B CN 112696158B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 14
- 238000005553 drilling Methods 0.000 title description 5
- 239000013307 optical fiber Substances 0.000 claims abstract description 84
- 230000008054 signal transmission Effects 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 4
- 239000000835 fiber Substances 0.000 claims description 29
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 210000001503 joint Anatomy 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 239000012212 insulator Substances 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001012 protector Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/028—Electrical or electro-magnetic connections
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Remote Sensing (AREA)
- Geophysics (AREA)
- Cable Accessories (AREA)
Abstract
The invention relates to a connection joint for power supply and data transmission of an intelligent drill rod downhole tool, which comprises a drill rod female joint component and a drill rod male joint component, wherein a cable is preset in a drill rod, a main cable of the cable is divided into a plurality of cable branch cables, the cable branch cables realize the connection of an electric signal transmission passage through a plurality of annular conducting rings of the drill rod male joint component and the drill rod female joint component, and meanwhile, the conducting rings are embedded in an insulator material, so that not only can electric support be provided for downhole measurement and operation tools, but also the non-conduction of other positions of the drill rod is ensured; meanwhile, the optical fiber is preset in the drill rod, the drill rod male joint component and the drill rod female joint component are connected in a conventional drill rod connection buckling mode during construction operation, and after connection and installation, the optical fiber connection male joint component and the optical fiber connection female joint component are in tight butt joint in a hydraulic pressing mode, so that the continuous connection working state of the optical fiber connection male joint component and the optical fiber connection female joint component is guaranteed, and the requirement of high-speed transmission of underground data signals is met.
Description
Technical Field
The invention relates to a connecting joint, in particular to a connecting joint for power supply and data transmission of an intelligent drilling rod downhole tool, and belongs to the technical field of intelligent drilling.
Background
The most central problem of intelligent drilling technology is how to solve the problems of power supply and data transmission of downhole tools. At present, the technology that cables and optical fibers are arranged in a drill rod body is mature, the technical difficulty is relatively small, and the implementation is easy.
But the technology of the intelligent drill rod joint is not mature at the present stage, and the designed connection reliability and convenience are not beneficial to field operation. Meanwhile, most of the existing intelligent drill rods are in a cable or wireless electromagnetic induction transmission mode, and the reliability of the existing intelligent drill rods cannot meet the requirements of working operation.
Therefore, the special connection communication or power supply joint is the key of the intelligent drill rod, and a special connection joint which can meet the requirements of underground power supply and data transmission and is beneficial to field operation needs to be designed urgently.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a connector for power supply and data transmission of an intelligent drill pipe downhole tool, which can meet the requirements of downhole power supply and data transmission and is beneficial to field operation.
In order to achieve the purpose, the invention adopts the following technical scheme: a connection joint for power supply and data transmission of an intelligent drill pipe downhole tool comprises a drill pipe female joint component and a drill pipe male joint component; wherein, the tool pipe box subassembly includes: a drill rod box, the upper end of which is configured to be connected with an upper drill rod and the lower end of which is configured to be a box end with internal threads; the first cable main cable is preset in the upper drill rod and the drill rod female joint along the axial direction; at least one first cable branch cable is preset in the drill rod female joint, one end of each first cable branch cable is electrically connected with a first cable main cable, and the other end of each first cable branch cable penetrates through the inner wall of the female buckle end of the drill rod female joint; the first cable conducting ring and the at least one first cable conducting ring are circumferentially arranged on the inner wall of the female buckle end of the drill rod female joint and are electrically connected with the first cable branch cable; the first optical fiber is also preset in the upper drill rod and the drill rod female joint along the axial direction, and the lower end of the first optical fiber extends to the lower end face of the drill rod female joint; the optical fiber female joint connector is arranged on the lower end face of the drill rod female joint and is electrically connected with the lower end of the first optical fiber; the drill rod male joint assembly comprises: the lower end of the drill rod male joint is configured to be connected with a lower drill rod, the lower end of the drill rod male joint is configured to be a male buckle end with external threads, and the male buckle end of the drill rod male joint can be screwed and connected with the female buckle end of the drill rod female joint; the second cable main cable is preset in the lower drill rod and the drill rod male joint along the axial direction; at least one second cable branch cable is preset in the drill rod male connector, one end of each second cable branch cable is electrically connected with the second cable main cable, and the other end of each second cable branch cable penetrates through the inner wall of the male buckle end of the drill rod male connector; the at least one second cable conducting ring is circumferentially arranged on the inner wall of the male buckle end of the drill pipe male joint and is electrically connected with the second cable branch cable, and the second cable conducting ring is configured to be matched with the first cable conducting ring to form an electric signal transmission passage after the male buckle end of the drill pipe male joint is screwed and connected with the female buckle end of the drill pipe female joint; the second optical fiber is also preset in the lower drill rod and the drill rod male joint along the axial direction, and the upper end of the second optical fiber extends to the upper end face of the drill rod male joint; and the optical fiber male joint connector is arranged on the upper end face of the drill rod male joint and is electrically connected with the lower end of the second optical fiber, and the optical fiber male joint connector is configured to be matched with the optical fiber female joint connector to form an optical signal transmission passage after the male buckle end of the drill rod male joint is screwed and connected with the female buckle end of the drill rod female joint.
Preferably, the number of the first cable branch cables is more than two, and the other end of each first cable branch cable penetrates through the inner wall of the female buckle end of the drill rod female joint from different heights.
Preferably, the number of the first cable conducting rings of the connection joint is also more than two, and each first cable conducting ring is arranged on the inner wall of the female buckle end of the drill rod female joint at different heights, and each first cable conducting ring is electrically connected with each first cable branch cable in a one-to-one correspondence manner.
Preferably, the number of the second cable branch cables is more than two, and the other end of each second cable branch cable penetrates through the inner wall of the male buckle end of the drill rod male joint from different heights.
Preferably, the number of the second cable conductive rings of the connection joint is also more than two, and each of the second cable conductive rings is arranged on the inner wall of the male buckle end of the drill rod male joint at different heights, and each of the second cable conductive rings is electrically connected with each of the second cable branch cables in a one-to-one correspondence manner.
The connection terminal, preferably, the optical fiber female terminal connector includes: the optical fiber female joint is connected with the base and fixedly arranged in a first optical fiber groove on the lower end face of the drill rod female joint; and the optical fiber rotatable conical female joint is hinged to the lower part of the optical fiber female joint connecting base and is electrically connected with the first optical fiber, and the optical fiber rotatable conical female joint can be configured to rotate in a plane in a self-adaptive manner by a certain angle.
The connection terminal, preferably, the optical fiber male terminal connector includes: the optical fiber male joint connector base is slidably arranged in a second optical fiber groove in the upper end face of the drill rod male joint; at least one hydraulic telescopic unit is arranged in a second optical fiber groove positioned below the optical fiber male joint connector base and is configured to drive the optical fiber male joint connector base to be lifted along the axial direction; the optical fiber male connector variable displacement fine adjustment base is arranged on the optical fiber male connector base and is configured to be capable of moving a certain distance along the axial direction in a self-adaptive manner; the optical fiber conical surface male connector is fixedly arranged at the upper part of the optical fiber male connector variable displacement fine adjustment base and is electrically connected with the second optical fiber, and the optical fiber conical surface male connector is configured to be in self-adaptive connection with the optical fiber rotatable conical surface female connector; a hydraulic power injection passage configured to communicate the hydraulic telescoping unit with an external hydraulic pressure source; and the hydraulic injection hole and the plug are configured to realize pressure sealing after the optical fiber conical surface male connector and the optical fiber rotatable conical surface female connector are connected.
Preferably, the first cable conductive ring and the second cable conductive ring are embedded in the cable insulation protective body except for the contact interface, and the cable insulation protective body is made of insulating ceramic.
Due to the adoption of the technical scheme, the invention has the following advantages: 1. the cable is preset in the drill rod, the main cable of the cable is divided into a plurality of cable branch cables, the cable branch cables are connected with an electric signal transmission passage through a plurality of annular conducting rings of male and female joints of the drill rod, and meanwhile, the conducting rings are embedded in an insulator material, so that electric power support can be provided for underground measuring and operating tools, and non-conduction of other positions of the drill rod is guaranteed. 2. The optical fiber is preset in the drill rod, the male joint and the female joint of the drill rod are connected in a conventional drill rod connection buckling mode during construction operation, the optical fiber connection male joint and the optical fiber connection female joint are in tight butt joint in a hydraulic pressing mode after connection and installation, the continuous connection working state of the optical fiber connection male joint and the optical fiber connection female joint is guaranteed, and therefore the requirement for high-speed transmission of underground data signals is met.
Drawings
Fig. 1 is a schematic overall structural diagram of a connection joint according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a drill pipe box assembly according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an optical fiber female splice connector according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a drill pipe male joint assembly according to an embodiment of the invention;
fig. 5 is a schematic structural diagram of an optical fiber male connector according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the system or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used to define elements only for convenience in distinguishing between the elements, and unless otherwise stated have no special meaning and are not to be construed as indicating or implying any relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," and "connected" are to be construed broadly, e.g., as being fixed or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
As shown in FIG. 1, the connection sub for power supply and data transmission of an intelligent drill pipe downhole tool provided by the invention comprises a drill pipe female joint assembly 100 and a drill pipe male joint assembly 200.
As shown in fig. 2, the drill rod box assembly 100 includes: a drill rod box 11, wherein the upper end of the drill rod box 11 is configured to be connected with an upper drill rod, and the lower end of the drill rod box 11 is configured to be a box end with an internal thread 12; the first cable main cable 13 is preset in the upper drill rod and the drill rod female joint 11 along the axial direction; the drill rod female joint comprises a first cable branch cable 14, at least one first cable branch cable 14 is preset in the drill rod female joint 11, one end of the first cable branch cable 14 is electrically connected with a first cable main cable 13, and the other end of the first cable branch cable 14 penetrates through the inner wall of a female buckle end of the drill rod female joint 11; the first cable conducting ring 15 is arranged on the inner wall of the female buckle end of the drill rod female joint 11 along the circumferential direction, and the first cable conducting ring 15 is electrically connected with the first cable branch cable 14; the first optical fiber 16 is also preset in the upper drill rod and the drill rod female joint 11 along the axial direction, and the lower end of the first optical fiber 16 extends to the lower end face of the drill rod female joint 11; and the optical fiber female joint connector 17 is arranged on the lower end surface of the drill rod female joint 11 and is electrically connected with the lower end of the first optical fiber 16.
As shown in fig. 4, the drill rod male joint assembly 200 includes: a drill rod male joint 21, wherein the lower end of the drill rod male joint 21 is configured to be connected with a lower drill rod, the lower end of the drill rod male joint 21 is configured to be a male-threaded end with an external thread 22, and the male-threaded end of the drill rod male joint 21 can be screwed and connected with the female-threaded end of the drill rod female joint 11; a second cable main cable 23, which is preset in the lower drill rod and the drill rod male joint 21 along the axial direction; at least one second cable branch cable 24 is preset in the drill rod male connector 21, one end of the second cable branch cable 24 is electrically connected with the second cable main cable 23, and the other end of the second cable branch cable 24 penetrates through the inner wall of the male buckle end of the drill rod male connector 21; the second cable conductive ring 25 is arranged on the inner wall of the male buckle end of the drill rod male joint 21 along the circumferential direction, the second cable conductive ring 25 is electrically connected with the second cable branch cable 24, and the second cable conductive ring 25 is configured to be matched with the first cable conductive ring 15 to form an electric signal transmission passage after the male buckle end of the drill rod male joint 21 is screwed and connected with the female buckle end of the drill rod female joint 11; the second optical fiber 26 is also preset in the lower drill rod and the drill rod male joint 21 along the axial direction, and the upper end of the second optical fiber 26 extends to the upper end face of the drill rod male joint 21; and an optical fiber male joint connector 27 disposed on an upper end surface of the drill pipe male joint 21 and electrically connected to a lower end of the second optical fiber 26, wherein the optical fiber male joint connector 27 is configured to form an optical signal transmission path in cooperation with the optical fiber female joint connector 17 after the male-buckle end of the drill pipe male joint 21 is screwed and connected to the female-buckle end of the drill pipe female joint 11.
In the above embodiment, preferably, the number of the first cable branch lines 14 is two or more, and the other end of each first cable branch line 14 penetrates through the inner wall of the female buckle end of the drill rod female joint 11 from different heights; correspondingly, the number of the first cable conductive rings 15 is also more than two, and each first cable conductive ring 15 is arranged on the inner wall of the box end of the drill rod female joint 11 at different heights, and each first cable conductive ring 15 is electrically connected with each first cable branch cable 14 in a one-to-one correspondence manner.
In the above embodiment, preferably, the number of the second cable branches 24 is two or more, and the other end of each second cable branch 24 penetrates through the inner wall of the male buckle end of the drill rod male joint 21 from different heights; correspondingly, there are more than two second cable conductive rings 25, and each second cable conductive ring 25 is disposed on the inner wall of the male buckle end of the drill pipe male joint 21 at different heights, and each second cable conductive ring 25 is electrically connected to each second cable branch 24 in a one-to-one correspondence.
In the above embodiment, preferably, as shown in fig. 3, the fiber female joint connector 17 includes: the optical fiber female joint connecting base 171 is fixedly arranged in a first optical fiber groove on the lower end face of the drill rod female joint 11; and a fiber rotary cone female terminal 172 hinge-mounted to a lower portion of the fiber female terminal connection base 171 and electrically connected to the first optical fiber 16, and the fiber rotary cone female terminal 172 is configured to be adaptively rotated within a plane by ± 10 °.
In the above embodiment, preferably, as shown in fig. 5, the optical fiber male plug connector 27 includes: the optical fiber male joint connector base 271 is slidably arranged in a second optical fiber groove on the upper end face of the drill rod male joint 21; a hydraulic telescoping unit 272, at least one hydraulic telescoping unit 272 being installed in the second fiber groove below the fiber male connector base 271, and the hydraulic telescoping unit 272 being configured to drive the fiber male connector base 271 to be raised 3cm in the axial direction; a fiber male connector variable displacement fine tuning base 273 installed on the fiber male connector base 271, and the fiber male connector variable displacement fine tuning base 273 is configured to be movable in an axial direction adaptively by ± 0.5cm; a fiber taper male connector 274 fixedly mounted on the upper portion of the fiber male connector variable displacement fine tuning base 273 and electrically connected to the second optical fiber 26, the fiber taper male connector 272 configured to be adaptively connectable to the fiber rotatable taper female connector 172; a hydraulic power injection passage 275 configured to communicate the hydraulic telescoping unit 272 with an external hydraulic pressure source; a hydraulic fill port and plug 276 configured to provide a pressure seal when the fiber taper male connector 274 is connected to the fiber rotatable taper female connector 172. Therefore, after the drill rod female joint assembly 100 and the drill rod male joint assembly 200 are installed in place, the optical fiber conical surface male joint 274 can be stably connected with the optical fiber rotatable conical surface female joint 172 through a hydraulic pressing mode, the locking requirement can be achieved through pressing 500psi generally, and after pressing, the hydraulic injection hole and the plug 276 are used for achieving pressure sealing.
In the above embodiment, as shown in fig. 2 and 4, the first cable conductive ring 15 and the second cable conductive ring 25 are embedded in the cable insulation protector 10 except for the contact interface, and the material of the cable insulation protector 10 may be insulating ceramic or the like. Therefore, after the drill pipe female joint assembly 100 and the drill pipe male joint assembly 200 are connected, the electric connection of the conducting rings of the cables can be realized, and the non-conduction of other positions of the drill pipe can be ensured, so that the high-power electricity can realize the well entering operation through the connecting joint.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. A connection joint for intelligent drill pipe downhole tool power supply and data transmission is characterized by comprising a drill pipe female joint assembly (100) and a drill pipe male joint assembly (200);
wherein the tool pipe box assembly (100) comprises:
a drill rod female joint (11), wherein the upper end of the drill rod female joint (11) is configured to be connected with an upper drill rod, and the lower end of the drill rod female joint (11) is configured to be a female-buckling end with an internal thread (12);
a first main cable (13) which is preset in the upper drill rod and the drill rod female joint (11) along the axial direction;
at least one first cable branch cable (14) is preset in the drill rod female joint (11), one end of the first cable branch cable (14) is electrically connected with the first main cable (13), and the other end of the first cable branch cable (14) penetrates through the inner wall of the female buckle end of the drill rod female joint (11);
the at least one first cable conductive ring (15) is circumferentially arranged on the inner wall of the box end of the drill rod female joint (11), and the first cable conductive ring (15) is electrically connected with the first cable branch cable (14);
the first optical fiber (16) is also preset in the upper drill rod and the drill rod female joint (11) along the axial direction, and the lower end of the first optical fiber (16) extends to the lower end face of the drill rod female joint (11);
the optical fiber female joint connector (17) is arranged on the lower end face of the drill rod female joint (11) and is electrically connected with the lower end of the first optical fiber (16);
the drill rod male joint assembly (200) comprises:
a drill rod male joint (21), wherein the lower end of the drill rod male joint (21) is configured to be connected with a lower drill rod, the lower end of the drill rod male joint (21) is configured to be a male end with an external thread (22), and the male end of the drill rod male joint (21) can be screwed and connected with the female end of the drill rod female joint (11);
a second main cable (23) which is preset in the lower drill rod and the drill rod male joint (21) along the axial direction;
at least one second cable branch cable (24) is preset in the drill pipe male joint (21), one end of the second cable branch cable (24) is electrically connected with the second cable main cable (23), and the other end of the second cable branch cable (24) penetrates through the inner wall of the male buckle end of the drill pipe male joint (21);
the at least one second cable conductive ring (25) is circumferentially arranged on the inner wall of the male buckling end of the drill pipe male joint (21), the second cable conductive ring (25) is electrically connected with the second cable branch cable (24), and the second cable conductive ring (25) is configured to be matched with the first cable conductive ring (15) to form an electric signal transmission passage after the male buckling end of the drill pipe male joint (21) is screwed and connected with the female buckling end of the drill pipe female joint (11);
a second optical fiber (26) is also preset in the lower drill pipe and drill pipe male joint (21) along the axial direction, and the upper end of the second optical fiber (26) extends to the upper end face of the drill pipe male joint (21);
the optical fiber male joint connector (27) is arranged on the upper end face of the drill rod male joint (21) and is electrically connected with the lower end of the second optical fiber (26), and the optical fiber male joint connector (27) is configured to be matched with the optical fiber female joint connector (17) to form an optical signal transmission path after the male-buckle end of the drill rod male joint (21) is screwed and connected with the female-buckle end of the drill rod female joint (11);
the optical fiber female joint connector (17) includes:
the optical fiber female joint connecting base (171) is fixedly arranged in a first optical fiber groove in the lower end face of the drill rod female joint (11);
a female optical fiber rotatable taper (172) which is hinged to a lower portion of the female optical fiber connector base (171) and electrically connected to the first optical fiber (16), and the female optical fiber rotatable taper (172) is configured to be rotatable within a plane by a certain angle;
the fiber male splice connector (27) comprising:
the optical fiber male joint connector base (271) is slidably mounted in a second optical fiber groove in the upper end face of the drill rod male joint (21);
a hydraulic telescoping unit (272), at least one of the hydraulic telescoping units (272) being mounted in a second fiber groove located below the fiber male splice connector base (271), and the hydraulic telescoping unit (272) being configured to drive the fiber male splice connector base (271) axially up;
a fiber male joint variable displacement fine tuning base (273) mounted on the fiber male joint connector base (271), and the fiber male joint variable displacement fine tuning base (273) is configured to be axially adaptively movable by a certain distance;
a fiber taper male stub (274) fixedly mounted on an upper portion of the fiber male stub variable displacement fine tuning mount (273) and electrically connected to the second optical fiber (26), the fiber taper male stub (274) configured to be adaptively connectable to the fiber rotatable taper female stub (172);
a hydraulic power injection passage (275) configured to communicate the hydraulic telescoping unit (272) with an external hydraulic pressure source;
a hydraulic fill port and plug (276) configured to provide a pressure seal when the fiber taper male (274) and fiber rotatable taper female (172) are connected.
2. The connection joint according to claim 1, wherein the number of the first cable branch lines (14) is two or more, and the other end of each first cable branch line (14) penetrates through the inner wall of the female end of the drill rod female joint (11) from different heights.
3. The connector according to claim 2, characterized in that the number of the first electrically conductive cable rings (15) is also two or more, and each of the first electrically conductive cable rings (15) is disposed on the inner wall of the box end of the drill rod box (11) at different heights, and each of the first electrically conductive cable rings (15) is electrically connected to each of the first electrically conductive cable branches (14) in a one-to-one correspondence.
4. The connector sub according to claim 1, wherein the number of the second cable branch lines (24) is two or more, and the other end of each of the second cable branch lines (24) passes through the inner wall of the male end of the drill rod male connector (21) from different heights.
5. The coupling according to claim 4, characterized in that there are also more than two second electrically conductive rings (25), and each second electrically conductive ring (25) is arranged on the inner wall of the male end of the drill rod male joint (21) at different heights, and each second electrically conductive ring (25) is electrically connected with each second cable branch cable (24) in a one-to-one correspondence.
6. The connection joint according to any one of claims 1 to 5, characterized in that the first conductive cable ring (15) and the second conductive cable ring (25) are embedded in a protective cable insulation (10) except for the contact interface, the material of the protective cable insulation (10) being an insulating ceramic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011576902.1A CN112696158B (en) | 2020-12-28 | 2020-12-28 | A attach fitting that is used for intelligence drilling rod downhole tool power supply and data transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011576902.1A CN112696158B (en) | 2020-12-28 | 2020-12-28 | A attach fitting that is used for intelligence drilling rod downhole tool power supply and data transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112696158A CN112696158A (en) | 2021-04-23 |
| CN112696158B true CN112696158B (en) | 2023-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011576902.1A Active CN112696158B (en) | 2020-12-28 | 2020-12-28 | A attach fitting that is used for intelligence drilling rod downhole tool power supply and data transmission |
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| CN (1) | CN112696158B (en) |
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| WO1990015350A1 (en) * | 1989-06-08 | 1990-12-13 | Commissariat A L'energie Atomique | Optical fibre connector |
| CN101315022A (en) * | 2007-06-01 | 2008-12-03 | 中国石化集团胜利石油管理局钻井工艺研究院 | Stone oil tool joint capable of transferring electric power and signal |
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