CN203383761U - Thread screw-in pressure ball injector - Google Patents
Thread screw-in pressure ball injector Download PDFInfo
- Publication number
- CN203383761U CN203383761U CN201320500332.7U CN201320500332U CN203383761U CN 203383761 U CN203383761 U CN 203383761U CN 201320500332 U CN201320500332 U CN 201320500332U CN 203383761 U CN203383761 U CN 203383761U
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- CN
- China
- Prior art keywords
- push rod
- piston push
- lower body
- ball injector
- fixedly connected
- 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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Abstract
The utility model relates to a thread screw-in pressure ball injector. The thread screw-in pressure ball injector is characterized in that a piston push rod (5) penetrates through an upper body (2) and a lower body (6), and the lower end of the piston push rod (5) penetrates out of the lower body (6); the top end of the piston push rod (5) is fixedly connected to a stopping disk (1) which is placed at the opening end of the upper body (2), the middle of the piston push rod (5) is fixedly connected with a push disk (3), and the piston push rod (5) on the lower portion of the push disk (3) is in threaded connection with an internal thread gasket (4); the internal thread gasket (4) is fixedly connected to the upper portion of an inner cavity of the lower body (6). The thread screw-in pressure ball injector is used in cooperation with a cement surface control tool and is mounted on a well cementation cement head, injecting balls with pressure under the condition that a pump is not stopped is achieved, the tool is closed in advance, the top of cement is reduced, and possible casting damage is prevented.
Description
Technical field
The utility model relates to a kind of ball injector in the petroleum drilling engineering technical field, particularly a kind of screw thread precession ball injector with pressure.
Background technology
The cement surface control tool is to make not Engage of standard layer of cement paste in when well cementation, in this position, does not form intensity, can delay the casing failure that the wiggly slippage due to typical floor causes.Owing to being applied in new stratum, cause the cement surface control tool to use and the demand of closing tool in advance occurred, require pitching in advance.Because pitching in advance need to be carried out under condition with pressure, so prior art can't complete assigned operation.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the problem existed in background technology, and provide a kind of screw thread precession ball injector with pressure, this screw thread precession ball injector with pressure, with the cement surface control tool, support the use, be arranged on cementing cement head pitching with pressure under the condition of not termination of pumping, closing tool in advance, reduce cement anti-high, prevent that issuable cover from damaging.
The invention for solving the technical problem can reach by following technical solution: this screw thread precession ball injector with pressure, comprise upper body, lower body, piston push rod, the upper body lower body that is threaded, described piston push rod is through upper body and lower body, and the piston push rod lower end passes lower body; Described piston push rod top is fixedly connected with block plate, and block plate is in the upper body openend, and the piston push rod middle part is fixedly connected with push-plate, and the internal thread pad is threaded on the piston push rod of push-plate bottom; The internal thread pad is fixedly connected on lower chamber body top.
The utility model is compared and can be had following beneficial effect with the above-mentioned background technology: this screw thread precession ball injector with pressure is owing to adopting said structure, ball injector with pressure and cement surface control tool support the use, and are arranged on cementing cement head pitching with pressure under the condition of not termination of pumping, shift to an earlier date closing tool, reduce cement anti-high, prevent that issuable cover from damaging, instrument pitching success rate is high, the cement surface control tool is used normal, cover damage problem is resolved, and meets on-the-spot service condition, improves cementing quality.
the accompanying drawing explanation:
Accompanying drawing 1 is structural representation of the present utility model.
In figure: body under 1-block plate, 2-upper body, 3-push-plate, 4-internal thread pad, 5-piston push rod, 6-, 7-groove.
the specific embodiment:
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, this screw thread precession ball injector with pressure comprises upper body 2, lower body 6, piston push rod 5, the described upper body 2 lower body 6 that is threaded; Piston push rod 5 is through upper body 2 and lower body 6, and piston push rod 5 lower ends pass lower body 6; Described piston push rod 5 tops are fixedly connected with block plate 1, and block plate 1 is in upper body 2 openends, and piston push rod 5 middle parts are fixedly connected with push-plate 3, and internal thread pad 4 is threaded on the piston push rod 5 of push-plate 3 bottoms; Internal thread pad 4 is fixedly connected on lower body 6 inner chamber tops.Described lower body 6 bottom end opening inner chamber places have groove 7.
While carrying out well cementing operation, upper body 2 is connected with cementing head, and while needing pitching, by the annex rocking bar, precession piston push rod 5, by internal thread pad 4, among the input of the nylon ball between block plate 1 and push-plate 3 cementing head, complete pitching.
Claims (2)
1. a screw thread precession ball injector with pressure, comprise upper body (2), lower body (6), piston push rod (5), upper body (2) the lower body (6) that is threaded, it is characterized in that: described piston push rod (5) is through upper body (2) and lower body (6), and piston push rod (5) lower end passes lower body (6); Described piston push rod (5) top is fixedly connected with block plate (1), block plate (1) is in upper body (2) openend, piston push rod (5) middle part is fixedly connected with push-plate (3), and internal thread pad (4) is threaded on the piston push rod (5) of push-plate (3) bottom; Internal thread pad (4) is fixedly connected on lower body (6) inner chamber top.
2. screw thread precession according to claim 1 ball injector with pressure, it is characterized in that: described lower body (6) bottom end opening inner chamber place has groove (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320500332.7U CN203383761U (en) | 2013-08-16 | 2013-08-16 | Thread screw-in pressure ball injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320500332.7U CN203383761U (en) | 2013-08-16 | 2013-08-16 | Thread screw-in pressure ball injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203383761U true CN203383761U (en) | 2014-01-08 |
Family
ID=49872270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320500332.7U Expired - Fee Related CN203383761U (en) | 2013-08-16 | 2013-08-16 | Thread screw-in pressure ball injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203383761U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360418A (en) * | 2020-11-12 | 2021-02-12 | 中国石油天然气股份有限公司 | Combined fracturing wellhead ball throwing tool and using method |
-
2013
- 2013-08-16 CN CN201320500332.7U patent/CN203383761U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360418A (en) * | 2020-11-12 | 2021-02-12 | 中国石油天然气股份有限公司 | Combined fracturing wellhead ball throwing tool and using method |
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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: 20140108 Termination date: 20210816 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |