CN202788698U - Wellhead catcher for downhole testers - Google Patents
Wellhead catcher for downhole testers Download PDFInfo
- Publication number
- CN202788698U CN202788698U CN 201220347082 CN201220347082U CN202788698U CN 202788698 U CN202788698 U CN 202788698U CN 201220347082 CN201220347082 CN 201220347082 CN 201220347082 U CN201220347082 U CN 201220347082U CN 202788698 U CN202788698 U CN 202788698U
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- CN
- China
- Prior art keywords
- cylinder
- well head
- internal thread
- downhole
- plug
- 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
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
A wellhead catcher for downhole testers comprises a pressing cap, a large plug, packing, a bottom plug, a spring, a control cylinder, an upper positioning screw, a lower positioning screw, a suspension head, a control body, an inner support, an assembly, a gland and a connecting guide cylinder. The gland, the assembly, the control body and the spring are sequentially mounted in the connecting guide cylinder which is provided with an internal thread and arranged on the lower portion of the wellhead catcher for the downhole testers, the control cylinder is sleeved in the suspension head with an external thread to be in threaded connection with the connecting guide cylinder and positioned by the lower positioning screw, the bottom plug is connected with an upper internal thread on the lower portion of the large plug, the control cylinder is connected with a lower internal thread on the lower portion of the large plug and positioned by the upper positioning screw, and the double-cone packing with a center hole and the pressing cap in threaded connection are sequentially mounted on the upper portion of the center bottom plug of the large plug. The wellhead catcher for the downhole testers is simple to operate, safe, reliable and small in trigger stroke, the testers are caught and released freely and can be prevented from falling into a well, working efficiency is improved, and labor intensity of workers is reduced.
Description
Technical field
The utility model relates to oil field oil, water well test instrument well head auxiliary protection tool technique, specifically a kind of downhole tester well head catcher.
Background technology
At present in oil field oil, water well test instrument are gone into the well observation process, occur easily having gone up the instrument roof fall and cause the fall situation of well of instrument.Catcher commonly used mainly adopts slips to add that elasticity propulsive mechanism or material realization catch.The problem that this catcher exists is: the one, during for band kill-job monitoring, there is the anti-top phenomenon to instrument, and need to avoid its propulsive thrust to trigger catcher.But slip-type capturing motion stroke is large, and poor repeatability, is difficult to accurately adjust its triggering dynamics, causes seizure mechanism to start if anti-top occurs, then needs rework operation.The 2nd, trigger in case catch mechanism, discharge instrument, must carry out integral demounting, make troubles to execute-in-place.The 3rd, the overall length that catcher has lengthened plug is installed, because the space between pulley and the blowout prevention box reduces, instrument is difficult to grasp apparatus subject when taking out, when especially the overflow controlling organization is arranged at plug top, plug and instrument need to be dismantled taking-up step by step, break the continuity of operation, affected operating efficiency.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, and a kind of downhole tester well head catcher is provided.
Technical solutions of the utility model comprise: pressure cap, large plug, packing, the end are stifled, spring, application cylinder, upper dog screw, lower dog screw, hanging head, control volume, inner support, assembly, turnover panel, axle, torsion spring, every blue, connect and draw cylinder.The bottom of its downhole tester well head catcher is provided with connecing of internal thread and draws and be equipped with successively in the cylinder every orchid, assembly, control volume, spring, inner support and upper end are provided with externally threaded application cylinder and successively control volume are inserted in, be provided with externally threaded hanging head with application cylinder pack into connect draw the cylinder be threaded, by lower dog screw location, internal thread is connected on the stifled and large plug bottom, the end, application cylinder is threaded with large the lower inside of plug bottom, by upper dog screw location, the two centrum packings with centre bore, the pressure cap that is threaded are equipped with successively in the center bottom section of blocking of large plug.
Pressure cap top in the above-mentioned downhole tester well head catcher is provided with six square toes, and the bottom is provided with external screw thread, and the bottom is provided with segment, and the center is provided with through hole.
Large plug upper end in the above-mentioned downhole tester well head catcher is hexagonal structure, six side bottoms are provided with ring-shaped step, the middle part is provided with the two seals groove, seal groove is used for the fitting tight circle, the bottom is provided with external screw thread and screw thread locating hole, and external screw thread is connected with former well head testing equipment, and the center is provided with the stairstepping through hole, top is provided with internal thread, and the bottom is provided with internal thread and lower internal thread successively.
The top ends segment-shaped is blocked up at the end in the above-mentioned downhole tester well head catcher, and top is provided with external screw thread, and the bottom is provided with six square toes.
Control volume in the above-mentioned downhole tester well head catcher is cylindrical shape, and top is provided with a ring-shaped step, and the center is provided with a double horn through hole.
Assembly in the above-mentioned downhole tester well head catcher respectively is provided with a claw type turnover panel, is fixed by axle and shell for to be arranged with two rectangle breach at columnar inner chamber in the breach, between turnover panel and the axle torsion spring is housed.
Connecing in the above-mentioned downhole tester well head catcher drawn cylinder and is cylindrical shape, and the bottom is provided with horn mouth, and inside is provided with two-stage step circular bore, and top is provided with internal thread and a screw thread locating hole.
The beneficial effects of the utility model are: easy to operate, safe and reliable, it is little to impact the stroke that triggers seizure, realizes that percussion action is accurately spacing, effectively prevents the anti-error starting of deriving and causing of pressure, accurately catches during the instrument roof fall, avoids instrument to fall in the well.Play well head on the instrument, with any half-twist of catcher urceolus, can realize that instrument catches, take out instrument, discharge freely.Increase work efficiency, alleviate worker's labour intensity.
Description of drawings
Fig. 1-the utility model the field structural representation.
Among the figure, 1. pressure cap, 2. large plug, 3. packing, 4. the end stifled, 5. spring, 6. application cylinder, the upper dog screw of 7-1., dog screw under the 7-2., 8. hanging head, 9. control volume, 10. inner support, 11. assembly, the 11-1. turnover panel, the 11-2. axle, the 11-3. torsion spring, 12. every orchid, and 13. connect and draw cylinder; A. seal groove, the B. pilot hole.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model will be further described:
Downhole tester well head catcher is stifled 4 by pressure cap 1, large plug 2, packing 3, the end, spring 5, application cylinder 6, upper dog screw 7-1, lower dog screw 7-2, hanging head 8, control volume 9, inner support 10, assembly 11, turnover panel 11-1, axle 11-2, torsion spring 11-3, every blue 12, connect and draw cylinder 13 and form.The bottom of its downhole tester well head catcher is provided with connecing of internal thread and draws cylinder and be equipped with successively in 13 every blue 12, assembly 11, control volume 9, spring 5, inner support 10 and upper end are provided with externally threaded application cylinder 6 and successively control volume 9 are inserted in, being provided with externally threaded hanging head 8 packs into application cylinder 6 with connecing and draws cylinder and 13 be threaded, by lower dog screw 7-2 location, the end stifled 4, be connected with internal thread on large plug 2 bottoms, application cylinder 6 and greatly lower inside being threaded of plug 2 bottoms, by upper dog screw 7-1 location, the two centrum packings 3 with centre bore are equipped with on stifled 4 tops of the center bottom of large plug 2 successively, the pressure cap 1 that is threaded.
Claims (7)
1. downhole tester well head catcher comprises: pressure cap (1), large plug (2), packing (3), the end stifled (4), spring (5), application cylinder (6), upper dog screw (7-1), lower dog screw (7-2), hanging head (8), control volume (9), inner support (10), assembly (11), turnover panel (11-1), axle (11-2), torsion spring (11-3), every blue (12), connect and draw cylinder (13); It is characterized in that: the bottom of described downhole tester well head catcher is provided with connecing of internal thread and draws cylinder and be equipped with successively in (13) every blue (12), assembly (11), control volume (9), spring (5), inner support (10) and upper end are provided with externally threaded application cylinder (6) and successively control volume (9) are inserted in, be provided with externally threaded hanging head (8) with application cylinder (6) pack into connect draw the cylinder (13) be threaded, located by lower dog screw (7-2), the end stifled (4), be connected with internal thread on large plug (2) bottom, application cylinder (6) and greatly lower inside being threaded of plug (2) bottom, by upper dog screw (7-1) location, the two centrum packings (3) with centre bore are equipped with on stifled (4) top of the center bottom of large plug (2) successively, the pressure cap that is threaded (1).
2. downhole tester well head catcher according to claim 1, it is characterized in that: described pressure cap (1) top is provided with six square toes, and the bottom is provided with external screw thread, and the bottom is provided with segment, and the center is provided with through hole.
3. downhole tester well head catcher according to claim 1, it is characterized in that: described large plug (2) upper end is hexagonal structure, six side bottoms are provided with ring-shaped step, the middle part is provided with the two seals groove, the bottom is provided with external screw thread and screw thread locating hole, the center is provided with the stairstepping through hole, and top is provided with internal thread, and the bottom is provided with internal thread and lower internal thread successively.
4. downhole tester well head catcher according to claim 1, it is characterized in that: (4) top ends segment-shaped is blocked up at the described end, and top is provided with external screw thread, and the bottom is provided with six square toes.
5. downhole tester well head catcher according to claim 1 is characterized in that: described control volume (9) is cylindrical shape, and top is provided with a ring-shaped step, and the center is provided with a double horn through hole.
6. downhole tester well head catcher according to claim 1, it is characterized in that: described assembly (11) is for to be arranged with two rectangle breach at columnar inner chamber, respectively be provided with a claw type turnover panel (11-1) in the breach, fixed by axle (11-2) and shell, between turnover panel (11-1) and the axle (11-2) torsion spring (11-3) is housed.
7. downhole tester well head catcher according to claim 1 is characterized in that: described connecing drawn cylinder (13) and is cylindrical shape, and the bottom is provided with horn mouth, and inside is provided with two-stage step circular bore, and top is provided with internal thread and a screw thread locating hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220347082 CN202788698U (en) | 2012-07-18 | 2012-07-18 | Wellhead catcher for downhole testers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220347082 CN202788698U (en) | 2012-07-18 | 2012-07-18 | Wellhead catcher for downhole testers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202788698U true CN202788698U (en) | 2013-03-13 |
Family
ID=47815974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220347082 Expired - Fee Related CN202788698U (en) | 2012-07-18 | 2012-07-18 | Wellhead catcher for downhole testers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202788698U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196475A (en) * | 2014-08-22 | 2014-12-10 | 南京威诺油气井测试工程有限公司 | Instrument catching and releasing device for well testing of high-pressure oil and gas water well and catching and releasing method |
| CN105863548A (en) * | 2016-05-16 | 2016-08-17 | 徐秀 | Blowout preventer of wellhead of well logging instrument |
| CN105863539A (en) * | 2016-05-16 | 2016-08-17 | 徐秀 | Grabber for instrument in well mouth blowout prevention pipe |
| CN109736776A (en) * | 2019-01-29 | 2019-05-10 | 中国石油集团川庆钻探工程有限公司 | Oil well test instruments catcher |
-
2012
- 2012-07-18 CN CN 201220347082 patent/CN202788698U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196475A (en) * | 2014-08-22 | 2014-12-10 | 南京威诺油气井测试工程有限公司 | Instrument catching and releasing device for well testing of high-pressure oil and gas water well and catching and releasing method |
| CN105863548A (en) * | 2016-05-16 | 2016-08-17 | 徐秀 | Blowout preventer of wellhead of well logging instrument |
| CN105863539A (en) * | 2016-05-16 | 2016-08-17 | 徐秀 | Grabber for instrument in well mouth blowout prevention pipe |
| CN109736776A (en) * | 2019-01-29 | 2019-05-10 | 中国石油集团川庆钻探工程有限公司 | Oil well test instruments catcher |
| CN109736776B (en) * | 2019-01-29 | 2023-10-13 | 中国石油集团川庆钻探工程有限公司 | Trap for well testing instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20130718 |