CN204793994U - Sealing device of cable tee bend in pit - Google Patents
Sealing device of cable tee bend in pit Download PDFInfo
- Publication number
- CN204793994U CN204793994U CN201520527118.XU CN201520527118U CN204793994U CN 204793994 U CN204793994 U CN 204793994U CN 201520527118 U CN201520527118 U CN 201520527118U CN 204793994 U CN204793994 U CN 204793994U
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- seal
- cable
- sealing device
- conical surface
- cone
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Abstract
The utility model discloses a sealing device of cable tee bend in pit, connect including reducer union, urceolus and adjustment to and be provided with a tertiary seal structure with the reducer union with adjusting to connect to correspond respectively, wherein: tertiary seal structure presses the cap including the first toper seal, sealing joint, second toper seal, briquetting, third toper seal, cone seal cover and the adjustment that set gradually, and the cap was pressed in the adjustment cover passes through threaded connection on sealing joint and with sealing joint, leaves the space that holds armour outside the cable between the interior conical surface of briquetting and the third toper seal, the tertiary sealing device's that corresponds with the reducer union sealing joint passes through threaded connection with first cable hole, threaded connection is passed through in the sealing joint and the second cable hole that connect the tertiary sealing device that corresponds with the adjustment. The utility model provides a cable tee bend sealing device can be high temperature resistant, high -pressure, has the high reliability.
Description
Technical field
The utility model relates to oil drilling equipment field, in particular to a kind of downhole cable threeway sealing device.
Background technology
In oil and gas well testing technique, downhole tool bears the adverse circumstances such as down-hole high temperature, high pressure, and its weakest connecting portion is the jockey of communication cable between downhole tool.The sealing of downhole communication cable connecting arrangement directly affects reliability and the test success rate of test result.
Under existing well, cable sealing device only can realize sealing the connecting portion of two sections of communication cables, device two ends all adopt secondary seal structure, seal cable appearance and cable inner core respectively, this structure voltage withstand class is higher, and its sealing of empirical tests can meet test jobs requirement.But along with the development of test technology, between downhole tool, interconnected communication need increases, and under existing well, cable sealing device cannot meet the needs that in test technology, three sections of communication cables are interconnected.Limit by downhole tool size condition, existing downhole cable threeway sealing device adopts cable primary seal, withstand voltage lower, be only applicable near pithead position, needing exploitation badly can high temperature resistant, high pressure, has the downhole cable threeway sealing device of high reliability, guarantees carrying out smoothly of test jobs.
Utility model content
Technical problem to be solved in the utility model is, provides one can high temperature resistant, high pressure, has the downhole cable threeway sealing device of high reliability.
Therefore, the technical solution of the utility model is as follows:
A kind of downhole cable threeway sealing device, comprises reducer union, urceolus and adjustment joint, and with described reducer union with described adjustment joint is corresponding is respectively provided with one or three grades of hermetically-sealed constructions, wherein:
Described reducer union is connected by thread seal with the upper end of described urceolus, described reducer union has vertically communication cable hole and the first cable aperture, described adjustment joint is connected by thread seal with the lower end of described urceolus, and described adjustment joint has the second cable aperture vertically;
Described three grades of hermetically-sealed constructions are positioned at described urceolus, described three grades of hermetically-sealed constructions comprise the first cone seal body set gradually, seal nipple, second cone seal body, briquetting, triconic seal, cone seals cover and adjustment pressure cap, one end of described seal nipple is formed with one and coordinates inner conical surface with described second cone seal body, described second cone seal body, described briquetting, triconic seal and described cone seals cover are positioned at described adjustment pressure cap, being enclosed within of described adjustment pressure cap to be threaded connection on described seal nipple and with described seal nipple thus to be pressed on the inner conical surface of described seal nipple by described second cone seal body, one end of described briquetting is formed with the inner conical surface coordinated with described triconic seal, and between the inner conical surface of described briquetting and described triconic seal, leave the space holding the outer armour of cable,
The inwall of described first cable aperture is formed with an inner conical surface, and seal nipple and described first cable aperture of the three-stage sealing device corresponding with described reducer union are threaded connection thus are pressed on the inner conical surface of described first cable aperture by the first corresponding cone seal body;
The inwall of described second cable aperture is formed with an inner conical surface, and seal nipple and described second cable aperture of the three-stage sealing device corresponding with described adjustment joint are threaded connection thus are pressed on the inner conical surface of described second cable aperture by the first corresponding cone seal body.
Downhole cable threeway sealing device in the utility model adopts three grades of cable seal structures, and heatproof, voltage withstand class and sealing reliability are high, and the communication that can meet down-hole three Tool Room is well interconnected.
Further, an adjustment block is also provided with between described first cone seal body and described seal nipple.
Further, the middle part of the inwall of described urceolus is formed with a ring-shaped step, described ring-shaped step place has the hole for injecting glue inside and outside the described urceolus of a connection, being provided with one for sealing the sealing screw of described hole for injecting glue, further increasing the reliability of device in described hole for injecting glue.
Accompanying drawing explanation
Fig. 1 is the structural representation of the downhole cable threeway sealing device according to the utility model embodiment;
Fig. 2 is the top enlarged diagram of downhole cable threeway sealing device in Fig. 1;
Fig. 3 is the middle part enlarged diagram of downhole cable threeway sealing device in Fig. 1;
Fig. 4 is the bottom enlarged diagram of downhole cable threeway sealing device in Fig. 1.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
As shown in Figures 1 to 4, according to the downhole cable threeway sealing device of embodiment of the present utility model, comprise reducer union 4, urceolus 6 and adjustment joint 17, and with described reducer union 4 with described adjustment joint 17 is corresponding is respectively provided with one or three grades of hermetically-sealed constructions 2, wherein:
Described reducer union 4 is connected by thread seal with the upper end of described urceolus 6, described reducer union 4 has vertically communication cable hole 19 and the first cable aperture 20, described adjustment joint 17 is connected by thread seal with the lower end of described urceolus 6, and described adjustment joint 17 has the second cable aperture 21 vertically;
Described three grades of hermetically-sealed constructions 2 are positioned at described urceolus, described three grades of hermetically-sealed constructions 2 comprise the first cone seal body 5 set gradually, seal nipple 8, second cone seal body 9, briquetting 11, triconic seal 13, cone seals cover 12 and adjustment pressure cap 10, one end of described seal nipple 8 is formed with one and coordinates inner conical surface with described second cone seal body 9, described second cone seal body 9, described briquetting 11, triconic seal 13 and described cone seals cover 12 are positioned at described adjustment pressure cap 10, being enclosed within described seal nipple 8 and being threaded connection with described seal nipple 8 thus described second cone seal body 9 is pressed on the inner conical surface of described seal nipple 8 of described adjustment pressure cap 10, one end of described briquetting 11 is formed with the inner conical surface coordinated with described triconic seal 13, and between the inner conical surface of described briquetting 11 and described triconic seal 13, leave the space holding the outer armour of cable,
The inwall of described first cable aperture 20 is formed with an inner conical surface, and seal nipple 8 and described first cable aperture 20 of the three-stage sealing device 2 corresponding with described reducer union 4 are threaded connection thus are pressed on by the first corresponding cone seal body 5 on the inner conical surface of described first cable aperture 20;
The inwall of described second cable aperture 21 is formed with an inner conical surface, and seal nipple 8 and described second cable aperture 21 of the three-stage sealing device 2 corresponding with described adjustment joint 17 are threaded connection thus are pressed on by the first corresponding cone seal body 5 on the inner conical surface of described second cable aperture 21.
Wherein, in figure, 18 is sealing ring, can ensure the sealing of each several part better.
Downhole cable threeway sealing device in the utility model adopts three grades of cable seal structures, and heatproof, voltage withstand class and sealing reliability are high, and the communication that can meet down-hole three Tool Room is well interconnected.
Further, an adjustment block 7 is also provided with between described first cone seal body 5 and described seal nipple 8.
Further, the middle part of the inwall of described urceolus 6 is formed with a ring-shaped step 16, described ring-shaped step 16 place has the hole for injecting glue inside and outside the described urceolus 6 of a connection, being provided with one for sealing the sealing screw 15 of described hole for injecting glue, further increasing the reliability of device in described hole for injecting glue.
In oil and gas well testing operation, device is connected with process pipe string, and in lower going-into-well, in device, union 1 is connected with downhole tool, enters reducer union 4 and urceolus 6 after the communication cable of this downhole tool removes outer armour from union 1 centre bore.
Enter the cable of reducer union 4, the first cone seal body 5 is extruded by adjustment block 7 by seal nipple, realize the primary seal to cable sheath, second cone seal body 9 realizes the secondary seal to cable sheath, cable removes cable sheath after the second cone seal body 9, after briquetting 11, remove outer armour, before triconic seal 13 clamp-ons the outer armour of cable and inner core, compressed by cone seals cover 12 and adjustment pressure cap 10, realize sealing the third level of cable.
Adjustment joint 14 is fixed on tool pipe string other instruments interior.Three grades of hermetically-sealed constructions 2 that adjustment joint 17 connects are consistent with reducer union 4 place.Two joints are connected with urceolus 6 with positive left-hand thread respectively. and during installation, first respectively three grades of hermetically-sealed constructions 2 are installed, urceolus 6 are connected in reducer union 4, the cable in urceolus are connected and is fixed on ring-shaped step 16 place, finally installing device integrated connection.
In sum, content of the present utility model is not limited in the above-described embodiment, and those skilled in the art can propose other embodiment within technological guidance's thought of the present utility model, but this embodiment is all included within scope of the present utility model.
Claims (3)
1. a downhole cable threeway sealing device, it is characterized in that, comprise reducer union (4), urceolus (6) and adjustment joint (17), and with described reducer union (4) with described adjustment joint (17) is corresponding is respectively provided with one or three grades of hermetically-sealed constructions (2), wherein:
Described reducer union (4) is connected by thread seal with the upper end of described urceolus (6), described reducer union (4) has vertically communication cable hole (19) and the first cable aperture (20), described adjustment joint (17) is connected by thread seal with the lower end of described urceolus (6), and described adjustment joint (17) has the second cable aperture (21) vertically;
Described three grades of hermetically-sealed constructions (2) are positioned at described urceolus, described three grades of hermetically-sealed constructions (2) comprise the first cone seal body (5) set gradually, seal nipple (8), second cone seal body (9), briquetting (11), triconic seal (13), cone seals cover (12) and adjustment pressure cap (10), one end of described seal nipple (8) is formed with one and coordinates inner conical surface with described second cone seal body (9), described second cone seal body (9), described briquetting (11), triconic seal (13) and described cone seals cover (12) are positioned at described adjustment pressure cap (10), the described seal nipple (8) that is enclosed within of described adjustment pressure cap (10) is gone up and is threaded connection with described seal nipple (8) thus is pressed on the inner conical surface of described seal nipple (8) by described second cone seal body (9), one end of described briquetting (11) is formed with the inner conical surface coordinated with described triconic seal (13), and between the inner conical surface of described briquetting (11) and described triconic seal (13), leave the space holding the outer armour of cable,
The inwall of described first cable aperture (20) is formed with an inner conical surface, and seal nipple (8) and described first cable aperture (20) of the three-stage sealing device (2) corresponding with described reducer union (4) are threaded connection thus are pressed on the inner conical surface of described first cable aperture (20) by the first corresponding cone seal body (5);
The inwall of described second cable aperture (21) is formed with an inner conical surface, and seal nipple (8) and described second cable aperture (21) of the three-stage sealing device (2) corresponding with described adjustment joint (17) are threaded connection thus are pressed on the inner conical surface of described second cable aperture (21) by the first corresponding cone seal body (5).
2. downhole cable threeway sealing device according to claim 1, is characterized in that, is also provided with an adjustment block (7) between described first cone seal body (5) and described seal nipple (8).
3. downhole cable threeway sealing device according to claim 1 and 2, it is characterized in that, the middle part of the inwall of described urceolus (6) is formed with a ring-shaped step (16), described ring-shaped step (16) place has the hole for injecting glue inside and outside the described urceolus of a connection (6), is provided with one for sealing the sealing screw (15) of described hole for injecting glue in described hole for injecting glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520527118.XU CN204793994U (en) | 2015-07-20 | 2015-07-20 | Sealing device of cable tee bend in pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520527118.XU CN204793994U (en) | 2015-07-20 | 2015-07-20 | Sealing device of cable tee bend in pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204793994U true CN204793994U (en) | 2015-11-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520527118.XU Expired - Fee Related CN204793994U (en) | 2015-07-20 | 2015-07-20 | Sealing device of cable tee bend in pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204793994U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109861162A (en) * | 2019-02-02 | 2019-06-07 | 吉林大学 | A kind of oil shale downhole cable high temperature and pressure seal nipple |
-
2015
- 2015-07-20 CN CN201520527118.XU patent/CN204793994U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109861162A (en) * | 2019-02-02 | 2019-06-07 | 吉林大学 | A kind of oil shale downhole cable high temperature and pressure seal nipple |
| CN109861162B (en) * | 2019-02-02 | 2023-10-24 | 吉林大学 | Underground cable high-temperature high-pressure sealing joint for oil shale |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210709 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: 300457 Tianjin Binhai New Area Development Zone Huanghai Road 106 Bohai Drilling Engineering Co., Ltd. science and Technology Development Office Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |