CN203961819U - High pressure sealing crossover sub - Google Patents
High pressure sealing crossover sub Download PDFInfo
- Publication number
- CN203961819U CN203961819U CN201420420634.8U CN201420420634U CN203961819U CN 203961819 U CN203961819 U CN 203961819U CN 201420420634 U CN201420420634 U CN 201420420634U CN 203961819 U CN203961819 U CN 203961819U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- instrument
- joint
- housing
- high pressure
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of high pressure sealing crossover sub, comprise housing, sleeve, insulation sleeve and punching bar, wherein: the left end of housing is provided with the internal thread for stube cable joint, right-hand member is provided with for connecting the external screw thread of instrument, in housing, be provided with a stepped hole, stepped hole comprises three joints that internal diameter reduces successively from left to right, insulation sleeve is arranged in the second section of stepped hole and coordinates with the inwall of housing to form and seals, sleeve is arranged in insulation sleeve and coordinates with the inwall of insulation sleeve and forms sealing, the left end of punching bar from right to left successively through after the 3rd joint of stepped hole and insulation sleeve, insert in sleeve and and state sleeve and be threaded connection, on the right-hand member of punching bar, be provided with for connecting the instrument joint of instrument, cable connector is connected to after housing by external screw thread, by sleeve, punching bar and instrument joint, is formed and is electrically connected to instrument.High pressure sealing crossover sub good airproof performance in the utility model, reliability is high.
Description
Technical field
The utility model relates to drilling equipment technical field, in particular to a kind of high pressure sealing crossover sub.
Background technology
At present, perforation completion is domestic and international most popular completion method.Perforation be by perforator down to Oil/gas Well target zone position, penetrate sleeve-penetrating, cement sheath and inject stratum certain depth, set up the flow channel of formation fluid and pit shaft.
By perforator mode of movement, divide and can be divided into cable transfer perforation and oil tube conveying gun perforation, and perforating depth accuracy is an important step that guarantees perforating quality.The correction of perforating depth, and perforating depth location are important process of perforation construction.The method that perforating depth is proofreaied and correct is to take located perforating method as basis.Located perforating is exactly by instrument, to determine near the position of collar certain target zone, obtain target zone and and near the relative depth between sleeve pipe it, then carry out again the method for perforation.
Cable transfer perforating depth location with in oil tube conveying gun perforation depth correction, all need that cable is connected to instrument and in down-hole, carry out operation.When instrument arrives down-hole certain depth, in well, liquid enters in instrument by the parts of cable or not exclusively sealing under the effect of pressure, can cause the phenomenons such as component damage, circuit board corrosion, short circuit of instrument.
Utility model content
Technical problem to be solved in the utility model is, a kind of high pressure sealing crossover sub of good airproof performance is provided.
Therefore, the technical solution of the utility model is as follows:
A high pressure sealing crossover sub, comprises housing, sleeve, insulation sleeve and punching bar, wherein:
The left end of described housing is provided with the internal thread for stube cable joint, right-hand member is provided with for connecting the external screw thread of instrument, in described housing, be provided with a stepped hole, described stepped hole comprises three joints that internal diameter reduces successively from left to right, described insulation sleeve is arranged in the second section of described stepped hole and coordinates with the inwall of described housing to form and seals, described sleeve is arranged in described insulation sleeve and coordinates with the inwall of described insulation sleeve and forms sealing, the left end of described punching bar from right to left successively through after the 3rd joint of described stepped hole and described insulation sleeve, insert in described sleeve and and state sleeve and be threaded connection, on the right-hand member of described punching bar, be provided with for connecting the instrument joint of described instrument,
Described cable connector is connected to after described housing by described external screw thread, by described sleeve, described punching bar and described instrument joint, form with described instrument and is electrically connected to (be that dependency structure is the conductive materials such as metal, thus the signal between effective transmission cable and instrument).
In this technical scheme, high pressure sealing joint can guarantee good sealing, avoid liquid in well under the effect of pressure, to enter in instrument and cause the phenomenons such as component damage, circuit board corrosion, short circuit of instrument, having improved system fixing application life of reliability and instrument.
Further, the right-hand member diameter of the 3rd joint of described stepped hole increases and forms a step, and the right-hand member of described punching bar is provided with a flange, between described flange and described step, is provided with felt pad, thereby guarantees electrical signal transfer highly effective and safe more.
Further, at described punching bar, be also arranged with insulation tube outward, further improve efficiency and the safety of electrical signal transfer.
Further, between described insulation sleeve and described housing, be provided with at least one sealing ring between described sleeve and described insulation sleeve, thereby further improve the sealing performance of whole device.
Further, on the right-hand member outer wall of described housing, be provided with at least one seal groove, in described seal groove, sealing ring be installed, thereby further improve the sealing performance of whole device.
Further, described instrument joint is banana joint, coordinates with corresponding instrument, easy to connect.
Accompanying drawing explanation
Fig. 1 is according to the structural representation of the high pressure sealing crossover sub of the utility model embodiment;
Fig. 2 is the scheme of installation of Fig. 1 mesohigh sealing crossover sub.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.It should be noted that, in the situation that not conflicting, the application's embodiment and the feature in embodiment can combine mutually.
As shown in Figure 1, according to the high pressure sealing crossover sub of embodiment of the present utility model, comprise housing 1, sleeve 4, insulation sleeve 5 and punching bar 6, wherein:
The left end of described housing 1 is provided with the internal thread for stube cable joint 13, right-hand member is provided with for connecting the external screw thread of instrument 14, in described housing, be provided with a stepped hole, described stepped hole comprises three joints that internal diameter reduces successively from left to right, described insulation sleeve 5 is arranged in the second section of described stepped hole and coordinates with the inwall of described housing 1 to form and seals, described sleeve 4 is arranged in described insulation sleeve 5 and coordinates with the inwall of described insulation sleeve 5 and forms sealing, the left end of described punching bar 6 from right to left successively through in the 3rd joint of described stepped hole and the described sleeve of the rear insertion of described insulation sleeve 54 and and state sleeve 4 and be threaded connection, on the right-hand member of described punching bar 6, be provided with for connecting the instrument joint 10 of described instrument 14,
Described cable connector 13 is connected to after described housing 1 by described external screw thread, by described sleeve 4, described punching bar 6 and described instrument joint 10, form with described instrument 14 and is electrically connected to (be that dependency structure is the conductive materials such as metal, thus the signal between effective transmission cable and instrument 14).
In this technical scheme, high pressure sealing joint can guarantee good sealing, avoid liquid in well under the effect of pressure, to enter in instrument and cause the phenomenons such as component damage, circuit board corrosion, short circuit of instrument, having improved system fixing application life of reliability and instrument.
Further, the right-hand member diameter of the 3rd joint of described stepped hole increases and forms a step 11, and the right-hand member of described punching bar 6 is provided with a flange 12, between described flange 12 and described step 11, is provided with felt pad 8, thereby guarantees electrical signal transfer highly effective and safe more.
Further, outside described punching bar 6, be also arranged with insulation tube 7, further improve efficiency and the safety of electrical signal transfer.
Further, between described insulation sleeve 5 and described housing 1, be provided with at least one sealing ring 2 between described sleeve 4 and described insulation sleeve 5, thereby further improve the sealing performance of whole device.
Further, on the right-hand member outer wall of described housing 1, be provided with at least one seal groove, in described seal groove, sealing ring be installed, thereby further improve the sealing performance of whole device.
Further, described instrument joint 10 is banana joint, coordinates with corresponding instrument 6, easy to connect.
Be illustrated in figure 2 the scheme of installation of high pressure sealing joint, cable 17 is separated cable core 15 to be connected on cable connector 13 by the core of the card 16, the left end input stube cable joint 13 of the housing 1 of high pressure sealing crossover sub, and right-hand member output connects instrument 14.
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 within this embodiment is included in scope of the present utility model.
Claims (6)
1. a high pressure sealing crossover sub, is characterized in that, comprises housing (1), sleeve (4), insulation sleeve (5) and punching bar (6), wherein:
The left end of described housing (1) is provided with the internal thread for stube cable joint (13), right-hand member is provided with for connecting the external screw thread of instrument (14), described housing is provided with a stepped hole in (1), described stepped hole comprises three joints that internal diameter reduces successively from left to right, described insulation sleeve (5) is arranged in the second section of described stepped hole and coordinates with the inwall of described housing (1) to form and seals, described sleeve (4) is arranged in described insulation sleeve (5) and coordinates with the inwall of described insulation sleeve (5) and forms sealing, the left end of described punching bar (6) from right to left successively through after the 3rd joint of described stepped hole and described insulation sleeve (5), insert in described sleeve (4) and and state sleeve (4) and be threaded connection, on the right-hand member of described punching bar (6), be provided with for connecting the instrument joint (10) of described instrument (14),
Described cable connector (13) is connected to after described housing (1) by described external screw thread, by described sleeve (4), described punching bar (6) and described instrument joint (10), is formed and is electrically connected to described instrument (14).
2. high pressure sealing crossover sub according to claim 1, it is characterized in that, the right-hand member diameter of the 3rd joint of described stepped hole increases and forms a step (11), the right-hand member of described punching bar (6) is provided with a flange (12), between described flange (12) and described step (11), is provided with felt pad (8).
3. high pressure sealing crossover sub according to claim 1 and 2, is characterized in that, is also arranged with insulation tube (7) outside described punching bar (6).
4. high pressure sealing crossover sub according to claim 1 and 2, it is characterized in that, between described insulation sleeve (5) and described housing (1), be provided with at least one sealing ring (2) between described sleeve (4) and described insulation sleeve (5).
5. high pressure sealing crossover sub according to claim 1 and 2, is characterized in that, on the right-hand member outer wall of described housing (1), is provided with at least one seal groove, and sealing ring (9) is installed in described seal groove.
6. high pressure sealing crossover sub according to claim 1 and 2, is characterized in that, described instrument joint (10) is banana joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420420634.8U CN203961819U (en) | 2014-07-28 | 2014-07-28 | High pressure sealing crossover sub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420420634.8U CN203961819U (en) | 2014-07-28 | 2014-07-28 | High pressure sealing crossover sub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203961819U true CN203961819U (en) | 2014-11-26 |
Family
ID=51922418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420420634.8U Expired - Fee Related CN203961819U (en) | 2014-07-28 | 2014-07-28 | High pressure sealing crossover sub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203961819U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401930A (en) * | 2015-09-02 | 2016-03-16 | 煤科集团沈阳研究院有限公司 | Carbon dioxide phase change coal seam fracturing device and utilization method |
-
2014
- 2014-07-28 CN CN201420420634.8U patent/CN203961819U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401930A (en) * | 2015-09-02 | 2016-03-16 | 煤科集团沈阳研究院有限公司 | Carbon dioxide phase change coal seam fracturing device and utilization method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2006110360A (en) | DEVICE AND METHOD FOR DETERMINING BOREHOLE PARAMETERS | |
| AU2017404561A1 (en) | Method for precisely extracting coal-mine gas | |
| CN105804735A (en) | Three-plunger type hydraulic fracturing ground stress measurement system | |
| RU2013158398A (en) | ENDING A WELL BORE CONNECTING WITH A LOSS OF FLUID MANAGEMENT | |
| CN103390816A (en) | Electric connector | |
| CN104662256A (en) | Method and system for data-transfer via a drill pipe | |
| GB2479508A (en) | Downhole pressure barrier and method for communication lines | |
| CN104179496A (en) | Connecting piece of short section of logging while drilling instrument | |
| CN203961819U (en) | High pressure sealing crossover sub | |
| CN101975057A (en) | Real-time control drilling and production system for deep and ultra-deep wells | |
| CN104314534A (en) | Differential pressure flow meter-type smart adjustable throwing and fishing injection dispenser | |
| CN203572747U (en) | Hydraulic-pressure-type high-pressure pressurized water tester with double plugs | |
| CN103470208B (en) | A kind of recyclable lower brill calker of oil gas field | |
| CN210768630U (en) | Conductive drill rod joint for downhole automation tool | |
| CN103558630A (en) | Method for installing acoustic emission sensor on mine | |
| CN109578270B (en) | All-metal gap bridge type screw pump | |
| CN104963645A (en) | Cable-passing wellhead used for intelligent separated water injection of cable | |
| CN109854185B (en) | Bridge type joint and single-pipe water injection and oil production pipe column | |
| CN203685288U (en) | Underground coal mine water exploration drilling water control device | |
| CN103195065B (en) | Screw-on disposable underwater concrete conduit head | |
| CN106837249A (en) | Producing well | |
| CN203441458U (en) | Rotating signal navigator | |
| CN203847082U (en) | Magnetic positioning instrument for single conductor cable perforation | |
| CN203205531U (en) | Rubber sleeve integrated antenna | |
| CN206942672U (en) | Combined type oil exploitation stabilizing catheter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200109 Address after: 100120 Beijing Xicheng District six laying Kang Co-patentee after: CHINA PETROLEUM LOGGING Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: 300457 science and Technology Development Office of Bohai Drilling Engineering Co., Ltd., No. 106 Huang Hai Road, Tianjin Binhai New Area Development Zone Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 |