CN-224214158-U - Over-electricity shock-absorbing nipple joint for continuous oil pipe

CN224214158UCN 224214158 UCN224214158 UCN 224214158UCN-224214158-U

Abstract

The utility model discloses a motor-driven shock-absorbing nipple for a continuous oil pipe, which relates to the technical field of shock-absorbing nipples and comprises an upper connector and a protective shell which are connected up and down, wherein a lower connector is arranged in the protective shell in a sliding manner up and down, a step seat is arranged on the lower side of the inner wall of the protective shell, the lower connector passes through the step seat, a lock nut is arranged at the upper end of the lower connector in a threaded manner, a first spring and a second spring are arranged in the protective shell on the upper side of the step seat, the upper end and the lower end of the first spring are respectively supported at the lower end of the upper connector and the top surface of the lock nut, the second spring is sleeved on the lower connector, the upper end and the lower end of the second spring are respectively supported at the bottom surface of the lock nut and the top surface of the step seat, an auxiliary operation hole for adjusting the lock nut is formed in the protective shell on one side of the lock nut, the device adopts the combination of two springs with different strength and the lock nut to adjust the position of the lock nut, so that the deformation of the first spring and the second spring is changed, the shock-absorbing effect is reduced, the shock impact forces with different magnitudes are realized, and universality is improved.

Inventors

LIU ZHIMING
Tuo Junli
MAO XUEWEI
Shang Ruixuan
DU XIAOCUN

Assignees

东营中昶能源科技有限公司

Dates

Publication Date: 20260508
Application Date: 20250626

Claims (5)

1. The electric shock absorption nipple for the continuous oil pipe comprises an upper joint and a protective shell which are connected up and down, and is characterized in that a lower joint is arranged in the protective shell in a sliding manner, a step seat is arranged on the lower side of the inner wall of the protective shell, a plurality of axial sliding grooves are formed in the protective shell on the lower side of the step seat, the lower joint penetrates through the step seat, a locking nut is arranged at the upper end of the lower joint in a threaded manner, a plurality of limit pins which are in one-to-one correspondence with the sliding grooves are fixed in the middle of the outer wall of the lower joint, the limit pins are arranged in the sliding grooves in a sliding manner, a first spring and a second spring are arranged in the protective shell on the upper side of the step seat, the upper end and the lower end of the first spring are respectively supported at the lower end of the upper joint and the top surface of the locking nut, the second spring is sleeved on the lower joint, the upper end and the lower end of the second spring are respectively supported at the bottom surface of the locking nut and the top surface of the step seat, and an auxiliary operation hole for adjusting the locking nut is formed in the protective shell on one side of the locking nut; The inner cavities of the upper connector, the protective shell and the lower connector are internally provided with an electricity passing assembly, the electricity passing assembly comprises a first pressure bearing sealing needle, a high-temperature wire, a second pressure bearing sealing needle and a conductive rod which are sequentially connected from top to bottom, the first pressure bearing sealing needle is arranged in the upper connector in a threaded manner, a lower end contact pin of the first pressure bearing sealing needle is connected with an upper end contact pin of the second pressure bearing sealing needle through the high-temperature wire, the second pressure bearing sealing needle is arranged in the lower connector in a threaded manner, a lower end contact pin of the second pressure bearing sealing needle is inserted into the conductive rod, the conductive rod is inserted into the lower connector, and a wire protecting sleeve is arranged in an annular space between the high-temperature wire and the first spring.
2. The excess electricity damping nipple for continuous oil pipes of claim 1, wherein the spring cavity of the casing is filled with silicone grease.
3. The excess electric shock absorbing nipple for continuous oil pipes of claim 1 wherein the first pressure bearing seal needle and the second pressure bearing seal needle are ceramic pressure bearing seal needles.
4. The over-electricity shock-absorbing nipple for continuous oil pipe of claim 1, wherein the outer sides of the lower end contact pin of the first pressure-bearing sealing pin and the upper end contact pin of the second pressure-bearing sealing pin are respectively sleeved with an insulating rubber sleeve, the outer sides of the two insulating rubber sleeves are respectively sleeved with a locking sleeve, the two locking sleeves are respectively in threaded connection with the first pressure-bearing sealing pin and the second pressure-bearing sealing pin, and a plurality of fixing pins for pressing the insulating rubber sleeve are respectively arranged on the two locking sleeves.
5. The over-electricity shock-absorbing nipple for continuous oil pipe of claim 1, wherein the elastic contact pin assembly is installed at the bottom of the inner cavity of the lower connector and comprises a contact pin seat, a conductive rod seat, a third spring and a lower contact pin, the conductive rod seat, the third spring and the lower contact pin are all located in the inner cavity of the contact pin seat, the conductive rod seat is installed in the inner cavity of the contact pin seat and is connected with the lower end of the conductive rod in an inserting mode, the lower contact pin is slidably installed at the lower portion of the inner cavity of the contact pin seat, the upper end of the lower contact pin is connected with the lower end of the conductive rod seat through a high-temperature wire, and the upper end and the lower end of the third spring are respectively supported at the lower end of the conductive rod seat and the upper end of the lower contact pin.

Description

Over-electricity shock-absorbing nipple joint for continuous oil pipe Technical Field The utility model relates to the technical field of damping pup joints, in particular to an over-electricity damping pup joint for a continuous oil pipe. Background With the exploration and development of oil and gas fields, the perforation operation of shale oil deep wells, large well deviation and large displacement horizontal wells by adopting continuous oil pipes is increased, and the perforation effect is required to be evaluated in real time during the perforation operation, so that multi-parameter instruments such as depth correction, magnetic positioning, temperature, pressure and the like are required to be lowered into wells along with a perforating gun. The existing core damping nipple joint adopts structures such as rubber tubes and hydraulic pushing springs, so that the problems of rubber tube failure, complex hydraulic structure, difficult maintenance and the like are frequently caused, an instrument is damaged due to disconnection of connecting wires when electric signal transmission is realized, and meanwhile, the hydraulic damping nipple joint, the rubber tube type single-core damping nipple joint and the damping nipple joint of a single spring are only suitable for one instrument or a perforating gun (perforating guns of each model are provided with perforating bullets of different models, and the generated jarring force is different), so that universality is poor. Therefore, development of a new shock absorbing nipple is urgently needed. Disclosure of utility model The utility model aims at overcoming the defects existing in the prior art and provides an over-electricity damping pup joint for a continuous oil pipe. The technical scheme is that the electric shock absorption nipple for the continuous oil pipe comprises an upper joint and a protective shell which are connected up and down, wherein a lower joint is arranged in the protective shell in a sliding manner, a step seat is arranged on the lower side of the inner wall of the protective shell, a plurality of axial sliding grooves are formed in the protective shell on the lower side of the step seat, the lower joint penetrates through the step seat, a locking nut is arranged at the upper end of the lower joint in a threaded manner, a plurality of limit pins which are in one-to-one correspondence with the sliding grooves are fixed in the middle of the outer wall of the lower joint, the limit pins are arranged in the sliding grooves in a sliding manner, a first spring and a second spring are arranged in the protective shell on the upper side of the step seat, the upper end and the lower end of the first spring are respectively supported at the lower end of the upper joint and the top surface of the locking nut, the second spring is sleeved on the lower joint, the upper end and the lower end of the second spring are respectively supported at the bottom surface of the locking nut and the top surface of the step seat, and an auxiliary operation hole for adjusting the locking nut is formed in the protective shell on one side of the locking nut; The inner cavities of the upper connector, the protective shell and the lower connector are internally provided with an electricity passing assembly, the electricity passing assembly comprises a first pressure bearing sealing needle, a high-temperature wire, a second pressure bearing sealing needle and a conductive rod which are sequentially connected from top to bottom, the first pressure bearing sealing needle is arranged in the upper connector in a threaded manner, a lower end contact pin of the first pressure bearing sealing needle is connected with an upper end contact pin of the second pressure bearing sealing needle through the high-temperature wire, the second pressure bearing sealing needle is arranged in the lower connector in a threaded manner, a lower end contact pin of the second pressure bearing sealing needle is inserted into the conductive rod, the conductive rod is inserted into the lower connector, and a wire protecting sleeve is arranged in an annular space between the high-temperature wire and the first spring. Preferably, the spring cavity of the protective shell is filled with silicone grease. Preferably, the first pressure-bearing sealing needle and the second pressure-bearing sealing needle are ceramic pressure-bearing sealing needles. Preferably, the outer sides of the lower-end contact pin of the first pressure-bearing sealing pin and the upper-end contact pin of the second pressure-bearing sealing pin are respectively sleeved with an insulating rubber sleeve, the outer sides of the two insulating rubber sleeves are respectively sleeved with a locking sleeve, the two locking sleeves are respectively in threaded connection with the first pressure-bearing sealing pin and the second pressure-bearing sealing pin, and a plurality of fixing pins used for pressing the insulating rubber sleeves are