CN104712257A - Structure capable of allowing multiple wires to pass through small diameter - Google Patents
Structure capable of allowing multiple wires to pass through small diameter Download PDFInfo
- Publication number
- CN104712257A CN104712257A CN201510118980.XA CN201510118980A CN104712257A CN 104712257 A CN104712257 A CN 104712257A CN 201510118980 A CN201510118980 A CN 201510118980A CN 104712257 A CN104712257 A CN 104712257A
- Authority
- CN
- China
- Prior art keywords
- multicore
- ring locking
- seal head
- seal
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B17/023—Arrangements for connecting cables or wirelines to downhole devices
Abstract
The invention discloses a structure capable of allowing multiple wires to pass through the small diameter. The structure comprises an adapter, a multi-core sealing head, a multi-core adhesive seal, a check ring locking plug and a pre-tightening nut. The adapter is in threaded connection with the multi-core sealing head. A conical connecting body is arranged in the multi-core sealing head. A conical cavity is formed in the conical connecting body. The multi-core adhesive seal is provided with enameled wires penetrating through the multi-core adhesive seal. The check ring locking plug is arranged at the rear end of the multi-core adhesive seal. Holes for the enameled wires to pass through are formed in the front end of the check ring locking plug. The check ring locking plug and the multi-core adhesive seal are matched with the conical cavity in the multi-core sealing head through a whole formed by the holes and the enameled wires. The front end of the check ring locking plug is sleeved with a wire inlet end insulating sleeve which is a T-shaped annular pipe. The pre-tightening nut is in threaded connection with the multi-core sealing head. The structure is compact and reliable, passing of eight to twelve wires can be achieved, and the technical effect that the multiple wires (eight to twelve wires) can pass through the small diameter can be effectively achieved.
Description
Technical field
The present invention relates to field of petroleum machinery, particularly, relate to and a kind ofly can realize the excessively multi-thread structure of minor diameter.
Background technology
After oil well in oilfield exploitation proceeds to the mechanical oil recovery stage by blowing, tester can not be entered down in oil pipe, oil pipe outer ring space is narrow and small, and particularly most of oil field of China all adopts sleeve pipe (namely internal diameter is 124mm) and oil pipe (maximum inner diameter is 89mm) combination, and maximal clearance only has 35mm.Tester is lowered in this annular space the monitoring carrying out many groups such as separated layer oil production rate, Liquid output, moisture and oil-water ratio dynamic data, and therefore logger external diameter requires the smaller the better, and general control is within 22mm.Under the environment of down-hole high pressure, the probe of the various parameter of measurement of logger or the measuring junction of sensor, need to realize carrying out Signal transmissions from higher-pressure region to low-pressure area under the prerequisite ensureing insulating properties.The method that current logger adopts usually mainly uses high pressure sealing plug (minimum diameter of current known practical is 4.5mm) to carry out high-low pressure Signal transmissions, because each sealing-plug can only transmit a signal, therefore the instrument of diameter 22mm can only transmit at most five signals, the transmission requirement of logger multi signal can not be met far away, in the instrument of diameter 22mm, also do not realize the structure through more than 5 holding wires from high pressure to low pressure at present.
Summary of the invention
Technical problem to be solved by this invention is to provide and a kind ofly can realizes the excessively multi-thread structure of minor diameter, this crosses excessively multi-thread to low pressure of high pressure that multiple line structure is mainly used in oil field annulus logging instrument, this compact conformation is reliable, can be more than enough to 8-12 root line, effectively solve the technical barrier of minor diameter (the logger external diameter within 22mm) excessively multi-thread (8-12 root line), namely can cross the line of 8-12 root 4.5mm from the line originally only can crossing at most 5 4.5mm under the setting of this structure.
The present invention's adopted technical scheme that solves the problem is:
A kind ofly can realize the excessively multi-thread structure of minor diameter, comprise adapter, multicore seal head, multicore rubber seal, back-up ring locking is blocked up and pretension nut, described adapter and multicore seal head are threaded, taper connection body is provided with in multicore seal head, be conical cavity in taper connection body, described multicore rubber seal is provided with enamel-covered wire and therefrom walks, the described stifled rear end being arranged on multicore rubber seal of back-up ring locking, the front end that back-up ring locking is blocked up is provided with the hole walked for enamel-covered wire, conical cavity in the entirety of back-up ring locking stifled and multicore rubber seal passing hole and enamel-covered wire combination and multicore seal head matches, the front end that back-up ring locking is blocked up also is socketed with lead-in wire terminal insulation sleeve, lead-in wire terminal insulation sleeve is T-shaped ring pipe, described pretension nut and multicore seal head are threaded.
Described multicore seal head is 8-12 core seal head.
The middle part that described back-up ring locking is blocked up also arranges porose elastic spring.
The front end of conical cavity is also socketed with leading-out terminal insulation sleeve, and leading-out terminal insulation sleeve is T-shaped ring pipe.The effect of leading-out terminal insulation sleeve is that protective paint envelope curve does not touch inwall.
O RunddichtringO is provided with between described adapter and multicore seal head.
Implementation of the present invention is: the enamel-covered wire importing suitable length in multicore rubber seal into, after again leading-out terminal insulation sleeve being contained in the front end of taper connection body, the multicore rubber seal of enamel-covered wire will be put on successively again, install in the stifled conical cavity loading the taper connection body of multicore seal head of back-up ring locking of lead-in wire terminal insulation sleeve and hole elastic spring, and use pretension nut compressing, pressurize in pressure test storehouse, the distortion of back-up ring locking stifled promotion multicore rubber seal is held tightly enamel-covered wire under pressure by pretension nut, this hole when elastic spring opens and snaps in multicore seal head, realize multicore rubber seal, the location that back-up ring locking is stifled, and certain pretightning force is provided to the distortion of multicore rubber seal.And the pressure that multicore rubber seal is subject to is larger, just the large enclasping force to enamel-covered wire is larger for the deflection of multicore rubber seal, thus achieves the excessively linear sealing of high pressure to low pressure.
To sum up, the invention has the beneficial effects as follows:
The present invention adopts multicore rubber seal and the stifled cooperation of back-up ring locking, ambient pressure is utilized to apply pressure thus sealing enamel-covered wire to multicore rubber seal, effectively solve the technical barrier of minor diameter (the logger external diameter within 22mm) excessively multi-thread (8-12 root line), realize the excessively linear sealing of high pressure to low pressure.
Accompanying drawing explanation
Fig. 1 is structure of the present invention.
Mark and corresponding component title in accompanying drawing:
1, O RunddichtringO, 2, adapter, 3, leading-out terminal insulation sleeve, 4, multicore seal head, 5, enamel-covered wire, 6, multicore rubber seal, 7, lead-in wire terminal insulation sleeve, 8, hole elastic spring, 9, back-up ring locking is stifled, 10, pretension nut.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the present invention's do, but embodiments of the present invention are not limited thereto.
The employing multicore rubber seal of design concept of the present invention applies the mode of wiper seal enamel-covered wire, realizes the excessively linear sealing of the excessively multi-thread high pressure of minor diameter to low pressure.
Embodiment 1:
As shown in Figure 1, a kind ofly can realize the excessively multi-thread structure of minor diameter, comprise adapter 2, multicore seal head 4, multicore rubber seal 6, back-up ring locking stifled 9 and pretension nut 10, described adapter 2 and multicore seal head 4 are threaded, taper connection body is provided with in multicore seal head 4, be conical cavity in taper connection body, described multicore rubber seal 6 is provided with enamel-covered wire 5 and therefrom walks, described back-up ring locking stifled 9 is arranged on the rear end of multicore rubber seal 6, the front end of back-up ring locking stifled 9 is provided with the hole walked for enamel-covered wire 5, conical cavity in the entirety that back-up ring locking stifled 9 and multicore rubber seal 6 passing hole and enamel-covered wire 5 combine and multicore seal head 4 matches, the front end of back-up ring locking stifled 9 is also socketed with lead-in wire terminal insulation sleeve 7, lead-in wire terminal insulation sleeve 7 is T-shaped ring pipe, described pretension nut 10 and multicore seal head 4 are threaded.
Described multicore seal head 4 is 8-12 core seal head.
The middle part of described back-up ring locking stifled 9 also arranges porose elastic spring 8.
The front end of conical cavity is also socketed with leading-out terminal insulation sleeve 3, and leading-out terminal insulation sleeve 3 is T-shaped ring pipe.
O RunddichtringO 1 is provided with between described adapter 2 and multicore seal head 4.
Implementation of the present invention is: the enamel-covered wire 5 importing suitable length in multicore rubber seal 6 into, after again leading-out terminal insulation sleeve 3 being contained in the front end of taper connection body, the multicore rubber seal 6 of enamel-covered wire 5 will be put on successively again, the back-up ring locking stifled 9 installing lead-in wire terminal insulation sleeve 7 and hole elastic spring 8 loads in the conical cavity of the taper connection body of multicore seal head 4, and compress with pretension nut 10, pressurize in pressure test storehouse, by pretension nut 10, back-up ring locking stifled 9 is promoted the distortion of multicore rubber seal 6 under pressure and hold enamel-covered wire 5 tightly, this hole when elastic spring 8 opens and snaps in multicore seal head 4, realize multicore rubber seal 6, the location of back-up ring locking stifled 9, and certain pretightning force is provided to the distortion of multicore rubber seal 6.And the pressure that multicore rubber seal 6 is subject to is larger, just the large enclasping force to enamel-covered wire 5 is larger for the deflection of multicore rubber seal 6, thus achieves the excessively linear sealing of high pressure to low pressure.
As mentioned above, better the present invention can be implemented.
Claims (5)
1. one kind can realize the excessively multi-thread structure of minor diameter, it is characterized in that, comprise adapter (2), multicore seal head (4), multicore rubber seal (6), back-up ring locking stifled (9) and pretension nut (10), described adapter (2) and multicore seal head (4) are threaded, multicore seal head is provided with taper connection body in (4), be conical cavity in taper connection body, described multicore rubber seal (6) is provided with enamel-covered wire (5) and therefrom walks, described back-up ring locking stifled (9) is arranged on the rear end of multicore rubber seal (6), the front end of back-up ring locking stifled (9) is provided with the hole walked for enamel-covered wire (5), conical cavity in the entirety that back-up ring locking stifled (9) and multicore rubber seal (6) passing hole and enamel-covered wire (5) combine and multicore seal head (4) matches, the front end of back-up ring locking stifled (9) is also socketed with lead-in wire terminal insulation sleeve (7), lead-in wire terminal insulation sleeve (7) is T-shaped ring pipe, described pretension nut (10) and multicore seal head (4) are threaded.
2. according to claim 1ly a kind ofly can realize the excessively multi-thread structure of minor diameter, it is characterized in that, described multicore seal head (4) is 8-12 core seal head.
3. according to claim 1ly a kind ofly can realize the excessively multi-thread structure of minor diameter, it is characterized in that, the middle part of described back-up ring locking stifled (9) also arranges porose elastic spring (8).
4. according to claim 1ly a kind ofly can realize the excessively multi-thread structure of minor diameter, it is characterized in that, the front end of conical cavity is also socketed with leading-out terminal insulation sleeve (3), and leading-out terminal insulation sleeve (3) is T-shaped ring pipe.
5. according to claim 1ly a kind ofly can realize the excessively multi-thread structure of minor diameter, it is characterized in that, between described adapter (2) and multicore seal head (4), be provided with O RunddichtringO (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510118980.XA CN104712257B (en) | 2015-03-18 | 2015-03-18 | Structure capable of allowing multiple wires to pass through small diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510118980.XA CN104712257B (en) | 2015-03-18 | 2015-03-18 | Structure capable of allowing multiple wires to pass through small diameter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104712257A true CN104712257A (en) | 2015-06-17 |
| CN104712257B CN104712257B (en) | 2017-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510118980.XA Active CN104712257B (en) | 2015-03-18 | 2015-03-18 | Structure capable of allowing multiple wires to pass through small diameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104712257B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756851A (en) * | 2018-05-23 | 2018-11-06 | 四川省科学城久利电子有限责任公司 | One kind being used for the small flow center packer flowmeter string-passing structure in oil field |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19945852A1 (en) * | 1998-09-26 | 2000-03-30 | Markus Schoettler | Device for monitoring ground water flow in bore wells; has optical system between camera unit and measurement zone located in tube |
| CN201635726U (en) * | 2010-03-17 | 2010-11-17 | 中国海洋石油总公司 | 68-core high-temperature high-pressure plug |
| CN202215850U (en) * | 2011-09-13 | 2012-05-09 | 攀钢集团冶金工程技术有限公司 | Explosion-proof wire exceeding assembly |
| CN202228061U (en) * | 2011-09-08 | 2012-05-23 | 中国海洋石油总公司 | Radial connection structure |
| CN202451146U (en) * | 2012-02-14 | 2012-09-26 | 北京欧盛文石油设备有限公司 | High-temperature heat collecting instrument |
| CN204457479U (en) * | 2015-03-18 | 2015-07-08 | 四川省科学城久利电子有限责任公司 | The structure that a kind of minor diameter is excessively multi-thread |
-
2015
- 2015-03-18 CN CN201510118980.XA patent/CN104712257B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19945852A1 (en) * | 1998-09-26 | 2000-03-30 | Markus Schoettler | Device for monitoring ground water flow in bore wells; has optical system between camera unit and measurement zone located in tube |
| CN201635726U (en) * | 2010-03-17 | 2010-11-17 | 中国海洋石油总公司 | 68-core high-temperature high-pressure plug |
| CN202228061U (en) * | 2011-09-08 | 2012-05-23 | 中国海洋石油总公司 | Radial connection structure |
| CN202215850U (en) * | 2011-09-13 | 2012-05-09 | 攀钢集团冶金工程技术有限公司 | Explosion-proof wire exceeding assembly |
| CN202451146U (en) * | 2012-02-14 | 2012-09-26 | 北京欧盛文石油设备有限公司 | High-temperature heat collecting instrument |
| CN204457479U (en) * | 2015-03-18 | 2015-07-08 | 四川省科学城久利电子有限责任公司 | The structure that a kind of minor diameter is excessively multi-thread |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756851A (en) * | 2018-05-23 | 2018-11-06 | 四川省科学城久利电子有限责任公司 | One kind being used for the small flow center packer flowmeter string-passing structure in oil field |
| CN108756851B (en) * | 2018-05-23 | 2021-06-22 | 四川省科学城久利电子有限责任公司 | Flow-collecting type flow meter line-passing structure for small flow center of oil field |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104712257B (en) | 2017-05-17 |
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