CN203702131U - Self-sealing type petroleum well mouth cable protection device - Google Patents
Self-sealing type petroleum well mouth cable protection device Download PDFInfo
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- CN203702131U CN203702131U CN201420008072.6U CN201420008072U CN203702131U CN 203702131 U CN203702131 U CN 203702131U CN 201420008072 U CN201420008072 U CN 201420008072U CN 203702131 U CN203702131 U CN 203702131U
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- platen
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- cable
- connector
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Abstract
The utility model provides a self-sealing type petroleum well mouth cable protection device which comprises a pressing disk and a separation sealing body. The separation sealing body comprises a disc-like pressing disk connection body and an inversed-frustum-shaped well mouth sleeve pipe connection body. The well mouth sleeve pipe connection body is integrally and vertically connected under the pressing disk connection body along a central axis. A central channel matched with an oil pipe in a sealing mode is arranged at the center of the separation sealing body, and a lower cable channel groove is vertically formed in the side edge of the separation sealing body. A central through hole matched with the central channel is formed in the center of the pressing disk, a concave pit matched with the pressing disk connection body in a sealing mode is arranged on the lower surface of the pressing disk, and an upper cable channel groove is vertically formed in the side edge of the pressing disk. After the pressing disk is fixedly matched with a lower flange of a well mouth sleeve pipe, the lower surface of the pressing disk connection body is matched with the end face of the lower flange in a sealing mode, the well mouth sleeve pipe connection body is matched with the inner wall of the well mouth sleeve pipe in a sealing mode, and the lower cable channel groove is in butt joint with the upper cable channel groove to form an arc cable protection channel. Through combination of the pressing disk and the separation sealing body, cables are prevented from being damaged and low-pressure fluid is prevented from flowing out, and work safety is high.
Description
Technical field
The utility model belongs to oil well logging auxiliary security technical field of tools, is specifically related to a kind of self-sealing oil well head cable protecting device.
Background technology
Owing to facing some specific condition, need to, by logger G.I.H in advance, then be lowered to oil pipe column and measure.In prior art, oil pipe be lowered to and mention process in can bump with sleeve pipe, or even squeeze wound and squeeze off the exploration cable being positioned between the two, cause cable and the instrument well that falls, the safety of operation is low.And in this process, owing to there being low-pressure fluid in oil well, thus can oil pipe be lowered to and mention process in cause low-pressure fluid to gush out, cause contaminated environment, produce security risk.
Utility model content
The technical problem that the utility model solves is to provide a kind of self-sealing oil well head cable protecting device, can guarantee the complete of in operating process exploration cable, and can realize the seal request in operating process, has improved operational security.
The utility model is to be achieved through the following technical solutions:
A kind of self-sealing oil well head cable protecting device, comprise platen and isolating seal body, described isolating seal body comprises platen connector in the form of annular discs and the wellhead casing pipe connector that is inversed taper platform shape, and wellhead casing pipe connector Yanzhong axle is the integrated platen connector below that is vertically connected on; Isolating seal body central authorities are provided with the central passage being sealed and matched with oil pipe, and side is vertically offered cable lower channel groove; Described platen central authorities offer the central through hole coordinating with central passage, and soffit is provided with the pit being sealed and matched with platen connector, and platen side is vertically offered cable upper channel groove; After platen and wellhead casing pipe lower flange are fixed; platen connector soffit coordinates with lower flange end face seal; wellhead casing pipe connector coordinates with wellhead casing pipe inner wall sealing, the cable protection passage of cable lower channel groove and cable upper channel groove docking composition arc.
Preferably, be provided with the multiple bolt holes that are circle distribution and coordinate with wellhead casing pipe lower flange on platen, corresponding each bolt hole is provided with side open type nut counterbore.
Further, platen upper surface is provided with annular groove, and the soffit of isolating seal body is provided with annular protrusion; Annular groove can be sealed and matched with the ring gasket of wellhead casing pipe upper flange, and annular protrusion can be sealed and matched with the sealed groove of wellhead casing pipe lower flange.
Preferably, the two ends up and down of the upper end of central through hole and central passage are respectively arranged with rounded surface, the lower end abate of central through hole.
Preferably, pit is flat root face shape, and the degree of depth is not more than the thickness of platen connector.
Preferably, platen adopts metal to make, and isolating seal body adopts castable rubber moulding.
Compared with prior art, the utlity model has following useful technique effect:
The utility model is on the one hand by being arranged on wellhead casing pipe lower flange, utilize platen by isolating seal body compression fit after wellhead casing pipe lower flange combination, the cable protection passage of the groove shape body of the arc forming, realize the isolation to oil pipe and cable, thereby prevent cable fault, realize the protection to downhole logging instruments; Utilize on the other hand the central passage of isolating seal body and oil pipe to be mutually sealed and matched simultaneously, guarantee on oil pipe, to carry or be lowered in process, the low-pressure fluid in well can not be gushed out, and has improved the safety of work.
Further, realize platen by bolt and be connected with the compression of wellhead casing pipe lower flange, utilize the bolt hole and the nut counterbore that are oppositely arranged, and the annular protrusion arranging on isolating seal body, improve the convenience that protective device coordinates, strengthened the stability of its versatility and connection; The annular groove of platen upper surface setting is that extra pressure control equipment is installed, and has improved safety in utilization.
Further, heart passage in isolating seal body is upper and lower along all having rounded surface, makes wellhead casing pipe connector go deep into the part of sleeve pipe, brings into play better guide effect while carrying oil pipe upper; The rounded surface that the neutral through hole upper end of platen arranges, fashionable performance guide effect under oil pipe, thus while making oil pipe by protective device, be not easy to occur card extension situation, guarantee the smooth and easy of lower oil tube.
Further, the degree of depth restriction by pit has guaranteed the close contact of itself and platen connector, utilizes the intensity of metal to guarantee the problem of structure and connection simultaneously, utilizes damping characteristic and the elasticity of rubber, has realized reciprocation sealing and the better protection to cable.
Accompanying drawing explanation
Fig. 1 is the axle geodesic structure schematic diagram of protective device described in the utility model example.
Fig. 2 partly cuts open structural representation along cable protection passage in Fig. 1.
Wherein: 1 is platen, 2 is buffer body, through hole centered by 3, and 4 is bolt hole, 5 is nut counterbore, and 6 is annular groove, and 7 is cable upper channel groove, passage centered by 8,9 is cable lower channel groove, and 10 is annular protrusion, and 201 is platen connector, and 202 is wellhead casing pipe connector.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
A kind of self-sealing oil well head of the utility model cable protecting device, as depicted in figs. 1 and 2, it comprises platen 1 and isolating seal body 2, isolating seal body 2 comprises platen connector in the form of annular discs 201 and the wellhead casing pipe connector 202 that is inversed taper platform shape, and wellhead casing pipe connector 202 Yanzhong axles are integrated platen connector 201 belows that are vertically connected on; Isolating seal body 2 central authorities are provided with the central passage 8 being sealed and matched with oil pipe, and side is vertically offered cable lower channel groove 9; Platen 1 central authorities offer the central through hole 3 coordinating with central passage 8, and soffit is provided with the pit being sealed and matched with platen connector 201, and platen 1 side is vertically offered cable upper channel groove 7; After platen 1 and wellhead casing pipe lower flange are fixed; platen connector 201 soffits coordinate with lower flange end face seal; wellhead casing pipe connector 202 coordinates with wellhead casing pipe inner wall sealing, the cable protection passage of cable lower channel groove 9 and cable upper channel groove 7 docking composition arcs.
Preferably, as shown in Figure 1, be provided with the multiple bolt holes 4 that are circle distribution and coordinate with wellhead casing pipe lower flange on platen 1, corresponding each bolt hole 4 is provided with side open type nut counterbore 5; Platen 1 upper surface is provided with annular groove 6, and as shown in Figure 2, the soffit of isolating seal body 2 is provided with annular protrusion 10; Annular groove 6 can be sealed and matched with the ring gasket of wellhead casing pipe upper flange, and annular protrusion 10 can be sealed and matched with the sealed groove of wellhead casing pipe lower flange; As shown in Figure 2, the upper end 3 of central through hole 3 and the two ends up and down of central passage 8 are respectively arranged with rounded surface, the lower end abate of central through hole 3; Pit is flat root face shape, and the degree of depth is not more than the thickness of platen connector 201.
Wherein, platen 1 adopts metal to make, and isolating seal body 2 adopts castable rubber moulding.
The utility model in use, cable in sleeve pipe is introduced to the cable lower channel groove 9 of isolating seal body 2, isolating seal body 2 is placed on sleeve pipe lower flange, wellhead casing pipe connector 202 inserts in sleeve pipe, the cable exposing is introduced to the cable upper channel groove 7 on platen 1, isolating seal body 2 is pressed on sleeve pipe lower flange with platen 1, finally carry out fastening with flange bolt, make isolating seal body 2 soffit annular protrusions 10 and lower flange sealed groove close contact, platen 1 bottom pit and platen connector 201 close contacts.Assemble the rear central passage 8 of isolating seal body 2 and the central through hole 3 of platen 1 as oil pipe running way, and effectively isolated exploration cable and oil pipe by cable protection passage, prevented cable fault.
The two ends up and down of the central passage of isolating seal body 2 are along being equipped with rounded surface, and wellhead casing pipe connector 202 has better guide effect while carrying oil pipe upper, and oil pipe is not easy to occur card extension situation during by instrument, has guaranteed the smooth and easy of lower oil tube.Isolating seal body 2 utilizes the tightly coated oil pipe of the elasticity of rubber, has realized reciprocating seal, and has realized buffering.
After platen 1 and isolating seal body 2 combine, integral seal structure and principle and use flange are approximate, can tackle general low-pressure fluid, and the further extra pressure control equipment of installation of the structure of platen 1 upper end permission, have very high safety.
Claims (6)
1. a self-sealing oil well head cable protecting device, it is characterized in that, comprise platen (1) and isolating seal body (2), described isolating seal body (2) comprises platen connector (201) in the form of annular discs and is the wellhead casing pipe connector (202) of inversed taper platform shape, and wellhead casing pipe connector (202) Yanzhong axle is integrated platen connector (201) below that is vertically connected on; Isolating seal body (2) central authorities are provided with the central passage (8) being sealed and matched with oil pipe, and side is vertically offered cable lower channel groove (9); Described platen (1) central authorities offer the central through hole (3) coordinating with central passage (8), and soffit is provided with the pit being sealed and matched with platen connector (201), and platen (1) side is vertically offered cable upper channel groove (7); After platen (1) and wellhead casing pipe lower flange are fixed; platen connector (201) soffit coordinates with lower flange end face seal; wellhead casing pipe connector (202) coordinates with wellhead casing pipe inner wall sealing; central passage and oil pipe are sealed and matched, the cable protection passage of cable lower channel groove (9) and cable upper channel groove (7) docking composition arc.
2. a kind of self-sealing oil well head cable protecting device according to claim 1; it is characterized in that; on described platen (1), be provided with the multiple bolt holes (4) that are circle distribution and coordinate with wellhead casing pipe lower flange, corresponding each bolt hole (4) is provided with side open type nut counterbore (5).
3. a kind of self-sealing oil well head cable protecting device according to claim 1 and 2, is characterized in that, described platen (1) upper surface is provided with annular groove (6), and the soffit of isolating seal body (2) is provided with annular protrusion (10); Annular groove (6) can be sealed and matched with the ring gasket of wellhead casing pipe upper flange, and annular protrusion (10) can be sealed and matched with the sealed groove of wellhead casing pipe lower flange.
4. a kind of self-sealing oil well head cable protecting device according to claim 1, is characterized in that, the two ends up and down of the upper end of described central through hole (3) and central passage (8) are respectively arranged with rounded surface, the lower end abate of central through hole (3).
5. a kind of self-sealing oil well head cable protecting device according to claim 1, is characterized in that, described pit is flat root face shape, and the degree of depth is not more than the thickness of platen connector (201).
6. a kind of self-sealing oil well head cable protecting device according to claim 1, is characterized in that, described platen (1) adopts metal to make, and isolating seal body (2) adopts castable rubber moulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420008072.6U CN203702131U (en) | 2014-01-07 | 2014-01-07 | Self-sealing type petroleum well mouth cable protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420008072.6U CN203702131U (en) | 2014-01-07 | 2014-01-07 | Self-sealing type petroleum well mouth cable protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203702131U true CN203702131U (en) | 2014-07-09 |
Family
ID=51052587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420008072.6U Expired - Fee Related CN203702131U (en) | 2014-01-07 | 2014-01-07 | Self-sealing type petroleum well mouth cable protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203702131U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184082A (en) * | 2014-08-28 | 2014-12-03 | 南通友联数码技术开发有限公司 | Well head cable protection device |
| CN110359873A (en) * | 2019-07-05 | 2019-10-22 | 中国石油天然气集团有限公司 | A kind of underground stub cable cutter and its application method |
| CN112688269A (en) * | 2020-11-23 | 2021-04-20 | 中国南方电网有限责任公司超高压输电公司广州局 | Multifunctional plugging connector special for oil-filled submarine cable |
| CN113597364A (en) * | 2019-03-07 | 2021-11-02 | 库卡德国有限公司 | Robot arm with line guide device |
-
2014
- 2014-01-07 CN CN201420008072.6U patent/CN203702131U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184082A (en) * | 2014-08-28 | 2014-12-03 | 南通友联数码技术开发有限公司 | Well head cable protection device |
| CN113597364A (en) * | 2019-03-07 | 2021-11-02 | 库卡德国有限公司 | Robot arm with line guide device |
| CN113597364B (en) * | 2019-03-07 | 2024-02-09 | 库卡德国有限公司 | Robot arm with line guiding device |
| CN110359873A (en) * | 2019-07-05 | 2019-10-22 | 中国石油天然气集团有限公司 | A kind of underground stub cable cutter and its application method |
| CN110359873B (en) * | 2019-07-05 | 2021-11-02 | 中国石油天然气集团有限公司 | Underground short cable cutter and using method thereof |
| CN112688269A (en) * | 2020-11-23 | 2021-04-20 | 中国南方电网有限责任公司超高压输电公司广州局 | Multifunctional plugging connector special for oil-filled submarine cable |
| CN112688269B (en) * | 2020-11-23 | 2021-11-09 | 中国南方电网有限责任公司超高压输电公司广州局 | Multifunctional plugging connector special for oil-filled submarine cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20220107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |