CN215451880U - Watertight electrical connection socket device for rotary steerable drilling machine - Google Patents

Abstract

The utility model relates to a watertight electrical connection socket device for a rotary steering drilling machine, which comprises an outer sheath layer, an outer conductor tightly connected in the outer sheath layer, an inner conductor tightly connected in the outer conductor and a dielectric insulator arranged between the outer conductor and the inner conductor, wherein one end of the outer sheath layer is provided with a connecting section, the inner conductor comprises two inner conductor metal grooves and an inner conductor probe connected between the two inner conductor metal grooves, the middle parts of the inner conductor probes are detachably connected, and the two sides of the inner conductor probe, which are positioned outside the inner conductor, are respectively sleeved with two dielectric insulators.

Description

Watertight electrical connection socket device for rotary steerable drilling machine

Technical Field

The utility model relates to the field of oil exploitation equipment, in particular to a watertight electrical connection socket device for a rotary steering drilling machine.

Background

Petroleum resources are the most widely used mainstream resources in the current society, and permeate into the clothes and food residences of everyone, and although novel energy resources are greatly developed in recent years, the petroleum resources still have irreplaceable effects in life and industrial production in a short time. With the exploitation of petroleum resources, the known oil reserves on the earth are obviously reduced, so more petroleum resources need to be explored and mastered, and China, as the third major country in the world, has abundant oil reserves, but is limited by exploitation conditions, the annual oil exploitation amount of China still cannot meet the huge oil demand, and the China still needs to rely on import from abroad, which is very disadvantageous to the development and safety of China. With the continuous reduction of high-quality oil resources, oil exploitation faces a worse and worse geological environment, and rotary steering drilling becomes a drilling technology vigorously developed in various countries due to the advantages of small friction resistance, controllable well track and the like.

Because oil is often produced in an underwater environment today, rotary steerable drilling rigs are required to meet the requirements of operating underwater. Chinese patent CN201921786326.6 discloses a miniature watertight connector, which comprises a plug and a socket fixedly connected by a locking cap, wherein the socket comprises a fixed seat and a cable connected with the fixed seat, the fixed seat is provided with a jack and a positioning hole, and a cable inner conductor probe is connected with the jack through a gold-plated hole. The method adopts a porous sealing mode, the reliability in an underwater environment is low, and the water tightness after rubber aging cannot be ensured. Chinese patent cn202021592091.x discloses a watertight connector, this watertight connector is including the base that has the insulating part and the cable head that attaches the retaining member, and the insulating part includes sealed cylinder and sealed inclined plane a, and the cable head includes seal groove and sealed inclined plane B, and the sealed cylinder of insulating part gets into in the seal groove of cable head and laminates with the seal groove, and sealed inclined plane a laminates with sealed inclined plane B simultaneously, forms the sealed form two-layer waterproof sealing structure of tapering, has realized double sealing. According to the method, the cable head of the cable socket part connects the cable and the socket together through the pouring sealant, so that the water tightness is ensured, and the inconvenience in replacement is brought. Chinese patent CN201920762884.2 discloses a watertight connector, which comprises a connector plug integrated with a watertight piezoelectric ultrasonic probe, and a watertight connector socket connected with a coaxial cable, wherein an O-ring and a connection nut are used to ensure tight connection between the plug and the socket. The method also uses pouring sealant to connect the cable and the socket together, which brings inconvenience for replacement.

The applicant filed a patent on the same day entitled watertight electrical connection plug device for a rotary steerable drilling machine, wherein the plug device comprises a cable head, a fixed connection seat and an insulating needle plug, a conductive head is externally plugged in the insulating needle plug, an outer ring of the insulating needle plug circumferentially protrudes outwards to form a sealing ring, and a metal shielding disc is fixedly connected outside the conductive head. Rotatory direction rig cable links to each other with the rig, simultaneously in kilometer's underground, if adopt the pouring sealant will link to each other with above-mentioned plug assorted socket and cable, can make the extravagant very big manpower and materials of change, nevertheless do not use sealed glue, liquid reveals into the connector from socket and coaxial cable's junction in, causes the performance of probe to be abnormal, consequently still remains to advance further improvement to socket arrangement's structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide a watertight electrical connection socket device for a rotary steering drilling machine, which ensures the reliability of a connector in an underwater environment and is more beneficial to replacing devices of an underwater rotary steering system.

The utility model is realized by the following technical scheme:

the utility model provides a watertight type electrical connection socket device for rotary steering rig, its characterized in that includes oversheath layer, zonulae occludens in the intraformational outer conductor of oversheath, zonulae occludens in the inner conductor of outer conductor and locates the medium insulator between outer conductor and the inner conductor, oversheath layer one end is equipped with the linkage segment, the inner conductor includes two inner conductor metal tanks and connects the inner conductor probe between two inner conductor metal tanks, the connection can be dismantled in inner conductor probe middle part, the inner conductor is located the inner conductor probe both sides outward and has cup jointed two medium insulators respectively.

According to the above technical solution, preferably, the outer conductor includes two outer conductor metal grooves and an outer conductor through groove connected between the two outer conductor metal grooves.

According to the technical scheme, preferably, the vertical section of the outer conductor through groove is smaller than that of the outer conductor metal groove, so that a reducing boss is formed at the joint of the outer conductor through groove and the outer conductor metal groove, a step-shaped structure matched with the reducing boss is arranged around the dielectric insulator, and the two dielectric insulators are respectively abutted against the reducing boss.

According to the technical scheme, preferably, a first reducing inclined plane is formed at the joint of the outer wall of the outer conductor through groove and the outer walls of the two outer conductor metal grooves.

According to the technical scheme, preferably, the vertical section of the inner conductor probe is smaller than that of the inner conductor metal groove, and a second reducing inclined plane is formed at the joint of the outer wall of the inner conductor probe and the outer walls of the two inner conductor metal grooves.

According to the technical scheme, preferably, the dielectric insulator is provided with a via hole, and a sealing inclined plane matched with the second reducing inclined plane is arranged at the edge of the via hole.

According to the above technical scheme, preferably, the connection section of the outer sheath layer includes a sealing groove and a positioning groove disposed between the sealing groove and the outer conductor.

According to the technical scheme, preferably, a sealing notch is formed in the circumference of the inner wall of the sealing groove.

According to the above technical scheme, preferably, one end of the outer conductor extends outward of the outer sheath layer to form a fixed end.

According to the above technical scheme, preferably, the fixed end outer wall is provided with a thread structure.

The utility model has the beneficial effects that:

the tail end of the socket device is connected with the cable probe embedded in the drilling machine, the front end of the socket device is connected with the plug, and the conductive head of the plug is electrically connected with the guide drilling machine through the internal structure of the socket.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a cross-sectional front view of a dielectric insulator portion of the present invention.

Fig. 3 is a front view of the outer conductor portion of the present invention in cross-section.

Fig. 4 is a front view of the inner conductor portion of the present invention.

Fig. 5 is a cut-away view of the three-dimensional structure of the present invention.

In the figure: 1. a sealing groove; 2. a sealing recess; 3. positioning a groove; 4. an outer conductor; 5. a dielectric insulator; 6. a stepped structure; 7. a fixed end; 8. an inner conductor metal slot; 9. an inner conductor; 10. an inner conductor probe; 11. sealing the inclined plane; 12. a via hole; 13. an outer conductor metal slot; 14. a first variable diameter bevel; 15. a diameter-variable boss; 16. an outer conductor through slot; 17. a second variable diameter inclined plane; 18. and (6) inserting pins.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments. Based on the embodiments in the utility model, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the utility model.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in the figure, the utility model comprises an outer sheath layer, an outer conductor 4 tightly connected in the outer sheath layer, an inner conductor 9 tightly connected in the outer conductor 4, and a dielectric insulator 5 arranged between the outer conductor 4 and the inner conductor 9, wherein the outer sheath layer is made of flexible material, and one end of the outer sheath layer is provided with a connecting section. The inner conductor comprises two inner conductor metal grooves 8 and an inner conductor probe 10 connected between the two inner conductor metal grooves 8, the middle of the inner conductor probe 10 is detachably connected, the inner conductor probe 10 comprises a contact pin 18 and a slot matched with the contact pin 18, the detachable connection of the middle of the inner conductor is realized through the insertion matching relation of the contact pin 18 and the slot, and two dielectric insulators 5 are sleeved on two sides of the inner conductor probe 10 outside the inner conductor respectively. The tail end of the socket device is connected with the cable probe embedded in the drilling machine, the front end of the socket device is connected with the plug, and the conductive head of the plug is electrically connected with the guide drilling machine through the internal structure of the socket.

According to the above embodiment, preferably, the outer conductor includes two outer-conductor metal grooves 13 and an outer-conductor through groove 16 connected between the two outer-conductor metal grooves 13. The vertical section of the outer conductor through groove 16 is smaller than that of the outer conductor metal groove 13, so that a reducing boss 15 is formed at the joint of the outer conductor through groove 16 and the outer conductor metal groove 13, a step-shaped structure 6 matched with the reducing boss 15 is arranged around the dielectric insulator 5, and the two dielectric insulators 5 are respectively abutted against the reducing boss 15.

According to the above embodiment, preferably, the first reducing inclined surface 14 is formed at the connection between the outer wall of the outer conductor through groove 16 and the outer walls of the two outer conductor metal grooves 13, so as to alleviate the return loss caused by abrupt radius change.

According to the above embodiment, preferably, the vertical cross section of the inner conductor probe 10 is smaller than that of the inner conductor metal groove 8, and the junction between the outer wall of the inner conductor probe 10 and the outer walls of the two inner conductor metal grooves 8 forms the second reducing inclined plane 17, and this arrangement adopts two gradual transition structures for impedance compensation.

According to the above embodiment, preferably, the dielectric insulator 5 is provided with the via hole 12, and the edge of the via hole 12 is provided with the sealing inclined surface 11 adapted to the second reducing inclined surface 17.

According to the above embodiment, preferably, the connection section of the outer sheath layer includes the sealing groove 1 and the positioning groove 3 disposed between the sealing groove 1 and the outer conductor, and the sealing notch 2 is disposed around the inner wall of the sealing groove 1. When the connector plug device is plugged into the socket device, the sealing notch 2 of the socket device can clamp the sealing ring which is formed by the outward protrusion of the outer wall of the insulating needle plug in the plug device, so that a waterproof structure in a taper sealing mode is formed.

According to the above embodiment, preferably, one end of the outer conductor extends out of the outer sheath layer to form the fixed end 7, and the outer wall of the fixed end 7 is provided with a thread structure. In the embodiment, a thread structure is arranged on one side of the outer conductor facing the drilling machine, and the outer conductor is fixedly embedded with a cable embedded in the drilling machine and is connected with the rotary drilling machine through threads at the connecting part, so that the socket device is convenient to replace while the watertight characteristic is ensured.

The specific installation process of the utility model is as follows: the outer conductor is tightly connected in the outer sheath layer, the two dielectric insulators 5 are respectively placed in the outer conductor metal grooves 13 of the outer conductor, then the inner conductor is respectively inserted into the outer conductor from two ends, and at the moment, the dielectric insulators 5 are positioned between the outer conductor and the inner conductor; the fixed end 7 at the end part of the outer conductor is embedded and fixed with a cable embedded and installed in the drilling machine, and simultaneously, the fixed end is connected with the rotary drilling machine in a threaded manner at the connection part; the plug is inserted in the connecting section of the socket device, the sealing notch 2 of the socket device can clamp the sealing ring which is formed by the outward protrusion of the outer wall of the insulating needle plug in the plug device, the metal shielding disc of the plug device is clamped in the positioning groove 3, the conductive head is positioned in the inner conductor metal groove 8, and the cable is electrically connected with the cable in the drilling machine through the inner conductor probe 10.

The tail end of the socket device is connected with the cable probe embedded in the drilling machine, the front end of the socket device is connected with the plug, and the conductive head of the plug is electrically connected with the guide drilling machine through the internal structure of the socket.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides a watertight type electrical connection socket device for rotary steering rig, its characterized in that includes oversheath layer, zonulae occludens in the intraformational outer conductor of oversheath, zonulae occludens in the inner conductor of outer conductor and locates the medium insulator between outer conductor and the inner conductor, oversheath layer one end is equipped with the linkage segment, the inner conductor includes two inner conductor metal tanks and connects the inner conductor probe between two inner conductor metal tanks, the connection can be dismantled in inner conductor probe middle part, the inner conductor is located the inner conductor probe both sides outward and has cup jointed two medium insulators respectively.

2. The watertight type electrical connection socket device for a rotary steerable drill according to claim 1, wherein the outer conductor comprises two outer conductor metal channels and an outer conductor through channel connected between the two outer conductor metal channels.

3. The watertight type electrical connection socket device for the rotary steerable drilling machine as claimed in claim 2, wherein the vertical cross-section of the through groove of the outer conductor is smaller than that of the metal groove of the outer conductor, so that a reducing boss is formed at the connection part of the through groove of the outer conductor and the metal groove of the outer conductor, a stepped structure adapted to the reducing boss is arranged around the dielectric insulator, and the two dielectric insulators are respectively abutted against the reducing boss.

4. The watertight type electrical connection socket device for a rotary steerable drill as recited in claim 2 or 3, wherein the junction between the outer wall of the outer conductor through channel and the outer walls of the two outer conductor metal channels forms a first tapered ramp.

5. The watertight type electrical connection socket device for a rotary steerable drill as recited in claim 1, wherein the vertical cross-section of the inner conductor probe is smaller than the vertical cross-section of the inner conductor metal groove, and a second tapered ramp is formed at the junction of the outer wall of the inner conductor probe and the outer walls of the two inner conductor metal grooves.

6. The watertight type electrical connection socket device for the rotary steerable drilling machine as recited in claim 5, wherein the dielectric insulator is provided with a through hole, and a sealing bevel adapted to the second variable diameter bevel is provided at an edge of the through hole.

7. The watertight-type electrical connection socket device for a rotary steerable drill according to claim 1, wherein the connection section of the outer jacket layer comprises a sealing groove and a positioning groove provided between the sealing groove and the outer conductor.

8. The watertight type electrical connection socket device for a rotary steerable drill according to claim 7, wherein the sealing groove has a sealing notch formed around the inner wall thereof.

9. The watertight-type electrical connection socket device for a rotary steerable drill as in claim 1, wherein the end of the outer conductor extends outside the outer sheath to form a fixed end.

10. The watertight-type electrical connection socket device for a rotary steerable drill according to claim 9, wherein the outer wall of the fixed end is provided with a screw structure.

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