CN201420526Y - Built-in hydraulic cement injector - Google Patents
Built-in hydraulic cement injector Download PDFInfo
- Publication number
- CN201420526Y CN201420526Y CN2009200255679U CN200920025567U CN201420526Y CN 201420526 Y CN201420526 Y CN 201420526Y CN 2009200255679 U CN2009200255679 U CN 2009200255679U CN 200920025567 U CN200920025567 U CN 200920025567U CN 201420526 Y CN201420526 Y CN 201420526Y
- Authority
- CN
- China
- Prior art keywords
- pipe
- sliding sleeve
- central tube
- built
- outer tube
- 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
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model relates to a built-in hydraulic cement injector. A cement injector body comprises an upper joint, an inner pipe and an outer pipe, wherein the inner pipe is connected through screw threads, the outer pipe is connected through welding, a special coupling is arranged inside the outer pipe and is connected with the inner pipe through screw threads, a center pipe is connected with the special coupling, a closing sliding bush and an opening sliding bush are orderly arranged in an annular space between the center pipe and the outer pipe, the position of the center pipe corresponding to the opening sliding bush is provided with a long groove, a connecting pipe passes through the long groove of the center pipe to be connected with the opening sliding bush and a mechanical openingbush arranged in the center pipe, a lower coupling is connected with the center pipe through screw threads and is connected with the outer pipe in a way of welding, and the lower joint is connected with the lower coupling through screw threads. The utility model has the advantage that the built-in hydraulic cement injector has the characteristics of reliable hydraulic opening and closing, good closing sealing and insulating effect, few drilling and plugging components and low construction cost, and can be used in the well construction requiring injecting cement on the top of a horizontal well.
Description
One, technical field:
The utility model relates to a kind of petroleum oil well completion instrument, particularly a kind of built-in hydraulic pressure cementing device that is applicable to open hole packer cooperation carrying out oil reservoirs of horizontal well with upper part well cementation completion.
Two, background technology:
Increasing horizontal well, directional well utilize stage cementing device to cooperate with open hole packer, carry out the above well section well cementation of oil reservoirs of horizontal well, and stage cementing device is a key tool of finishing this technology.Stage cementing device at present commonly used adopts mainly that hydraulic way is opened, plug promotes to realize mechanical closing, treats to utilize after cement paste solidifies bit drills come unglued plug and stage cementing device inner part again, realizes the unimpeded of well.There is the problem of following several respects in the type instrument: 1. closing sliding sleeve is casting aluminium material processing, causes this parts damages in boring the plug work progress, thereby causes casing leakage; 2. close to slide over and close the problem that has the compression sealing liquid in the closed procedure, cause the problem that is not closed completely easily, the problem that the meeting cement paste pours in down a chimney.
Three, summary of the invention:
The purpose of this utility model is exactly the above-mentioned defective that exists at prior art, a kind of built-in hydraulic pressure cementing device is provided, employing will be closed the built-in method of sliding sleeve, solve the problem that it might damage in boring the plug process, adopt hydraulic way to close simultaneously, and the change tool construction, solve the problem that sliding sleeve is not closed completely of closing.
The technical solution of the utility model realizes in the following manner:
The utility model cement device body comprises top connection and interior pipe that is threaded and the outer tube that is welded to connect, special box cupling places outer tube inside and utilizes screw thread to link to each other with interior pipe, central tube links to each other with special box cupling, be equipped with in turn in the annular space between central tube and outer tube and close sliding sleeve and open sliding sleeve, central tube has elongated slot with the corresponding position of unlatching sliding sleeve, the elongated slot that connecting rod passes central tube connects the machinery unlatching cover of opening in sliding sleeve and the central tube, following box cupling is by screw thread and central tube, link to each other with outer tube by welding manner, lower contact adopts screw thread to link to each other with following box cupling.
Above-mentioned close sliding sleeve, open that dress cushion rubber and central tube, outer tube form sealing on the sliding sleeve.
The beneficial effects of the utility model are: have hydraulic open and close reliable, close packing effective, bore the characteristics that plunger member is few, construction cost is low, can carry out using in the construction of horizontal well crest water flooding mud completion at needs.
Four, description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model;
Among the last figure: 1, top connection; 2, liquid inlet control valve; 3, interior pipe; 4, special box cupling; 5, outer tube; 6, plug seat; 7, central tube; 8, retaining ring; 9, close sliding sleeve; 10, open sliding sleeve; 11, connecting rod; 12, machinery is opened cover; 13, following box cupling; 14, lower contact.
Five, the specific embodiment:
For further disclosing the technical solution of the utility model, be further described below in conjunction with accompanying drawing:
A kind of built-in hydraulic pressure stage cementing device, body comprises top connection 1 and interior pipe 3 that is threaded and the outer tube 5 that is welded to connect, special box cupling 4 places outer tube 5 inside and utilizes screw thread to link to each other with interior pipe 3, central tube 7 links to each other with special box cupling 4, be equipped with in turn in the annular space between central tube 7 and outer tube 5 and close sliding sleeve 9 and open sliding sleeve 10, central tube 7 has elongated slot with unlatching sliding sleeve 10 corresponding positions, the elongated slot that connecting rod 11 passes central tube 7 connects the machinery unlatching cover of opening in sliding sleeve 10 and the central tube 7 12, following box cupling 13 is by screw thread and central tube 7, link to each other with outer tube 5 by welding manner, lower contact 14 adopts screw thread to link to each other with following box cupling 13.Close sliding sleeve 9, open that dress cushion rubber and central tube 7, outer tube 5 form sealing on the sliding sleeve 10.
Wherein, plug seat 6 adopts sealing thread to be connected on the special box cupling 4, is used for well cementation process and plug and forms sealing.Under the normal operating conditions, opening sliding sleeve 10 can open under the effect of hydraulic coupling, under the situation that hydraulic coupling is not opened, machinery is opened cover 12 and is opened sliding sleeves 10 and move down along the elongated slot on the central tube 7 and realize that the machinery that opens sliding sleeve 10 opens driving by connecting rod 11 under the effect of mechanical force.Closing sliding sleeve 9 need utilize hydraulic coupling to close after liquid inlet control valve 2 is opened, and is locked in the urceolus 5 by retaining ring 8.
Claims (2)
1, a kind of built-in hydraulic pressure cementing device, it is characterized in that: cement device body comprises top connection and interior pipe that is threaded and the outer tube that is welded to connect, special box cupling places outer tube inside and utilizes screw thread to link to each other with interior pipe, central tube links to each other with special box cupling, be equipped with in turn in the annular space between central tube and outer tube and close sliding sleeve and open sliding sleeve, central tube has elongated slot with the corresponding position of unlatching sliding sleeve, the elongated slot that connecting rod passes central tube connects the machinery unlatching cover of opening in sliding sleeve and the central tube, following box cupling is by screw thread and central tube, link to each other with outer tube by welding manner, lower contact adopts screw thread to link to each other with following box cupling.
2, built-in hydraulic pressure cementing device according to claim 1 is characterized in that: describedly close sliding sleeve, open that dress cushion rubber and central tube, outer tube form sealing on the sliding sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200255679U CN201420526Y (en) | 2009-05-20 | 2009-05-20 | Built-in hydraulic cement injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200255679U CN201420526Y (en) | 2009-05-20 | 2009-05-20 | Built-in hydraulic cement injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201420526Y true CN201420526Y (en) | 2010-03-10 |
Family
ID=41807178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200255679U Expired - Fee Related CN201420526Y (en) | 2009-05-20 | 2009-05-20 | Built-in hydraulic cement injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201420526Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461173A (en) * | 2017-08-16 | 2017-12-12 | 中国石油天然气股份有限公司 | Water injection well completion integrated tool |
-
2009
- 2009-05-20 CN CN2009200255679U patent/CN201420526Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461173A (en) * | 2017-08-16 | 2017-12-12 | 中国石油天然气股份有限公司 | Water injection well completion integrated tool |
| CN107461173B (en) * | 2017-08-16 | 2019-11-08 | 中国石油天然气股份有限公司 | Water injection well completion integrated tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206693997U (en) | Oil field separates adopts technology tubular column | |
| CN204311997U (en) | A kind of pressure break reverse circulation valve | |
| CN201902192U (en) | Float valve type underground blowout preventer | |
| CN203626722U (en) | Sealed cementing device | |
| CN102650200A (en) | Shot-free unidirectional blocking valve | |
| CN201666142U (en) | Hydraulic perforate non-drilling stage collar | |
| CN207453907U (en) | The closed continuous sand flushing control device of well head | |
| CN204716202U (en) | Intubate well cementing valve | |
| CN201420526Y (en) | Built-in hydraulic cement injector | |
| CN206830131U (en) | Sand setting constant pressure check valve for water injection well | |
| CN103437742B (en) | High-speed switch fills the stop-off instrument of passage | |
| CN202946101U (en) | Self-closing hole non-drilling type hydraulic pressure classification hoop | |
| CN204609834U (en) | A kind of ceramics plate type leak-resistance valve | |
| CN105804693A (en) | Annulus safety valve | |
| CN102650199A (en) | Bidirectional pressure control circulating valve | |
| CN201310318Y (en) | Automatic-reset hydraulic grading hoop | |
| CN201723196U (en) | Self-sealing setting ball seat | |
| CN2784580Y (en) | Hydraulic locking packer | |
| CN205330617U (en) | Novel annular space relief valve | |
| CN203626717U (en) | Drillable type casing float collar float shoe | |
| CN202249947U (en) | Subsurface safety valve | |
| CN208546156U (en) | A kind of hydraulic control sliding sleeve | |
| CN202325402U (en) | Blowout-preventing plug valve | |
| CN201635703U (en) | Sleeve pipe pressure test plugging device | |
| CN201679468U (en) | Coiled tubing anchoring device |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100310 Termination date: 20180520 |