CN203570261U - Sliding block linkage drilling-free classification cement injector - Google Patents
Sliding block linkage drilling-free classification cement injector Download PDFInfo
- Publication number
- CN203570261U CN203570261U CN201320804492.0U CN201320804492U CN203570261U CN 203570261 U CN203570261 U CN 203570261U CN 201320804492 U CN201320804492 U CN 201320804492U CN 203570261 U CN203570261 U CN 203570261U
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- CN
- China
- Prior art keywords
- plug
- closing
- sleeve
- cover
- close
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- 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 - Lifetime
Links
- 239000004568 cement Substances 0.000 title abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000005553 drilling Methods 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Images
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses a sliding block linkage drilling-free classification cement injector which consists of an outer barrel, a closed sleeve, a closing plug sleeve and an opening plug seat, wherein the closing sleeve is inserted into the inner cavity of the outer barrel; the closing plug sleeve is inserted into the inner cavity of the closed sleeve; the lower part of the closing plug sleeve is sleeved with the opening plug seat; the opening plug sleeve is inserted into the closed sleeve; the opening plug sleeve and the closed sleeve are connected with each other through an opening shear pin and a linkage steel ball; a first limiting slot and a second limiting slot are formed in the inner wall of the outer barrel in sequence from top to bottom; a limiting sliding block is arranged on the outer wall of the closed sleeve and is arranged in the first limiting slot in the inner wall of the outer barrel; the outer barrel is connected with the closed sleeve through the limiting sliding block; the top end of the closing plug sleeve is connected with the closed sleeve through a closing shear pin. The sliding block linkage drilling-free classification cement injector has the beneficial effects that a requirement on the trial pressure of 25MPa can be met, and the success rate is 100 percent; the sliding block linkage drilling-free classification cement injector is low in use cost and high in manufacturability, and the well building period is shortened; reliable technical support is supplied to well drilling speed-up work.
Description
Technical field
The utility model relates to a kind of well cementation downhole tool, and particularly a kind of slide block link exempts to bore stage cementing device.
Background technology
At present, the full well sealing of long bore hole of oil gas field adopts stage cementing cementing technology, use conventional stage cementing device, after well cementation, need lower bradawl tool to bore plug, greatly extended drilling period, increase considerably drilling cost, while also there is drilling out, drilled the risk of sleeve pipe simultaneously, directly affected follow-up construction and Oil/gas Well Production Life.
Summary of the invention
The purpose of this utility model be for solve the conventional stage cementing device of existing use cement the well the long drilling period of time delay, increase drilling cost and easily drill the problems such as sleeve pipe and a kind of slide block link that provides exempts to bore stage cementing device.
It is by urceolus that slide block link described in the utility model exempts to bore stage cementing device, close cover, close plug sleeve and open obturating plug composition, wherein closing cover is plugged in the inner chamber of urceolus, shut-off plug cover is plugged in the inner chamber of closing cover, open obturating plug and be set in the bottom of closing plug sleeve, opening obturating plug is plugged in and closes in cover, opening obturating plug is connected with closing between cover by opening shear pin and linking steel ball, the inwall of urceolus is provided with the first stopper slot and the second stopper slot from the top down successively, the outer wall of closing cover is provided with position limiting slide block, position limiting slide block is placed in the first stopper slot of outer tube inner wall, urceolus is connected by this position limiting slide block with closing between cover, close plug sleeve top by close shear pin with close cover be connected, the outer wall of closing plug sleeve top is provided with the 3rd stopper slot, the internal diameter of the 3rd stopper slot is with to close the position limiting slide block size of cover on outer wall corresponding, this position limiting slide block can be connected in the 3rd stopper slot, the middle part of urceolus is provided with circulation port, circulation port with close the through hole that puts corresponding position and connect, the lower end of urceolus is connected with lower contact.
Closing plug sleeve is three grades of reducer pipes, and caliber successively decreases from top to bottom successively, so just can guarantee that shut-off plug enters smoothly close in plug sleeve and stay and close in plug sleeve.
Operating principle of the present utility model is as described below:
The first step: carry out one-level cementing job according to well cementation program
After one-level cementing operation finishes, well head is thrown gravity plug, and when gravity plug comes downwards to while opening obturating plug, opening obturating plug is the whereabouts pedestal of gravity plug; By well head, build the pressure to cut off and open obturating plug and close opening shear pin and linking steel ball between cover, make to open the descending circulation port that exposes of obturating plug and set up secondary circulation;
Second step: implement secondary cementing job
Secondary cementing job finishes, well head discharges shut-off plug, when entering under the effect of shut-off plug in well head pressure to close plug sleeve and make to close shear pin, cut off, shut-off plug be enclosed within the effect of well head pressure, continue descending, when closing the position limiting slide block putting while slipping into the 3rd stopper slot that shut-off plug puts, shut-off plug cover drives closes the descending circulation port of closing of cover, now, close the position limiting slide block putting and slip in the second stopper slot on outer tube inner wall and locking, circulation port is forever closed; Now close plug sleeve and close cover disengagement, closing plug sleeve lower end and link with the blocking plug at gravity plug top; Close plug sleeve, shut-off plug, gravity plug and open the as a whole shaft bottom that falls into of obturating plug link.
The beneficial effects of the utility model:
The utility model is that a kind of slide block link exempts to bore classification injector, this slide block link is exempted to bore stage cementing device for cementing operation, and stage cementing device is opened, closes, comes off reliable, and constructing operation is simple, can meet the requirement of pressure testing 25MPa, success rate 100%.Can effectively avoid conventional stage cementing device inner sleeve to sweep plug operation, every mouthful of well can be cut down expenses 420,000 yuan.Good economic benefit and social benefit have been obtained.Can avoid conventional fraclional well cementing to sweep a large amount of discarded slurries and drilled cement that plug produces; for environmental protection, there is positive impetus; use cost is low, good manufacturability, fraclional well cementing construction manipulation is simple, use safety and reliability, shorten well construction period, for drilling speed work provides favourable reliable technical support.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1, urceolus 2, close cover 3, close plug sleeve 4, open obturating plug 5, open shear pin
6, link steel ball 7, the first stopper slot 8, the second stopper slot 9, position limiting slide block
10, close shear pin 11, the 3rd stopper slot 12, circulation port 13, lower contact.
The specific embodiment
Refer to shown in Fig. 1:
It is by urceolus 1 that slide block link described in the utility model exempts to bore stage cementing device, close cover 2, close plug sleeve 3 and open obturating plug 4 and form, wherein closing cover 2 is plugged in the inner chamber of urceolus 1, closing plug sleeve 3 is plugged in the inner chamber of closing cover 2, open obturating plug 4 and be set in the bottom of closing plug sleeve 3, open obturating plug 4 be plugged in close cover 2 in, opening obturating plug 4 is connected by opening shear pin 5 and linking steel ball 6 with closing between cover 2, the inwall of urceolus 1 is provided with the first stopper slot 7 and the second stopper slot 8 from the top down successively, the outer wall of closing cover 2 is provided with position limiting slide block 9, position limiting slide block 9 is placed in the first stopper slot 7 of urceolus 1 inwall, urceolus 1 with close cover and by position limiting slide block 9, be connected between 2, close plug sleeve 3 tops by closing shear pin 10 and closing cover and 2 be connected, the outer wall of closing plug sleeve 3 tops is provided with the 3rd stopper slot 11, the internal diameter of the 3rd stopper slot 11 is with to close position limiting slide block 9 sizes of cover on 2 outer walls corresponding, position limiting slide block 9 can be connected in the 3rd stopper slot 11, the middle part of urceolus 1 is provided with circulation port 12, circulation port 12 connects with the through hole of closing corresponding position on cover 2, the lower end of urceolus 1 is connected with lower contact 13.
Closing plug sleeve 3 is three grades of reducer pipes, and caliber successively decreases from top to bottom successively, so just can guarantee that shut-off plug enters smoothly close in plug sleeve 3 and stay and close 3 li of plug sleeves.
Operating principle of the present utility model is as described below:
The first step: carry out one-level cementing job according to well cementation program
After one-level cementing operation finishes, well head is thrown gravity plug, when gravity plug comes downwards to while opening obturating plug 4, opens the whereabouts pedestal that obturating plug 4 is gravity plug; By well head, build the pressure to cut off and open obturating plug 4 and close opening shear pin 5 and linking steel ball 6 between cover 2, make to open the descending circulation port 12 that exposes of obturating plug 4 and set up secondary circulation;
Second step: implement secondary cementing job
Secondary cementing job finishes, well head discharges shut-off plug, when entering under the effect of shut-off plug in well head pressure to close plug sleeve 3 and make to close shear pin 10, cut off, close plug sleeve 3 continues descending under the effect of well head pressure, when closing the position limiting slide block 9 of cover on 2 while slipping into the 3rd stopper slot 11 of closing on plug sleeve 3, close plug sleeve 3 drives and close the cover 2 descending circulation ports 12 of closing, now, the position limiting slide block 9 of closing on cover 2 slips in the second stopper slot 8 on urceolus 1 inwall and locking, and circulation port 12 is forever closed; Now close plug sleeve 3 and close cover 2 disengagements, closing plug sleeve 3 lower ends and link with the blocking plug at gravity plug top; Close plug sleeve 3, shut-off plug, gravity plug and open obturating plug 4 and link the as a whole shaft bottom that falls into.
Claims (2)
1. a slide block link exempts to bore stage cementing device, it is characterized in that: be by urceolus, close cover, close plug sleeve and open obturating plug composition, wherein closing cover is plugged in the inner chamber of urceolus, shut-off plug cover is plugged in the inner chamber of closing cover, open obturating plug and be set in the bottom of closing plug sleeve, opening obturating plug is plugged in and closes in cover, opening obturating plug is connected with closing between cover by opening shear pin and linking steel ball, the inwall of urceolus is provided with the first stopper slot and the second stopper slot from the top down successively, the outer wall of closing cover is provided with position limiting slide block, position limiting slide block is placed in the first stopper slot of outer tube inner wall, urceolus is connected by this position limiting slide block with closing between cover, close plug sleeve top by close shear pin with close cover be connected, the outer wall of closing plug sleeve top is provided with the 3rd stopper slot, the internal diameter of the 3rd stopper slot is with to close the position limiting slide block size of cover on outer wall corresponding, this position limiting slide block can be connected in the 3rd stopper slot, the middle part of urceolus is provided with circulation port, circulation port with close the through hole that puts corresponding position and connect, the lower end of urceolus is connected with lower contact.
2. slide block link according to claim 1 exempts to bore stage cementing device, it is characterized in that: the described plug sleeve of closing is three grades of reducer pipes, and caliber successively decreases from top to bottom successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320804492.0U CN203570261U (en) | 2013-12-06 | 2013-12-06 | Sliding block linkage drilling-free classification cement injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320804492.0U CN203570261U (en) | 2013-12-06 | 2013-12-06 | Sliding block linkage drilling-free classification cement injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203570261U true CN203570261U (en) | 2014-04-30 |
Family
ID=50537995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320804492.0U Expired - Lifetime CN203570261U (en) | 2013-12-06 | 2013-12-06 | Sliding block linkage drilling-free classification cement injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203570261U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895524A (en) * | 2015-05-26 | 2015-09-09 | 成都高普石油工程技术有限公司 | Classifying hoop |
| CN105507847A (en) * | 2014-09-25 | 2016-04-20 | 中国石油化工股份有限公司 | Apparatus and method for drill pipe plug field testing |
| CN112443289A (en) * | 2019-08-27 | 2021-03-05 | 中国石油化工股份有限公司 | Packing type stage cementing device |
-
2013
- 2013-12-06 CN CN201320804492.0U patent/CN203570261U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507847A (en) * | 2014-09-25 | 2016-04-20 | 中国石油化工股份有限公司 | Apparatus and method for drill pipe plug field testing |
| CN105507847B (en) * | 2014-09-25 | 2018-05-08 | 中国石油化工股份有限公司 | A kind of apparatus and method for drilling rod rubber plug field test |
| CN104895524A (en) * | 2015-05-26 | 2015-09-09 | 成都高普石油工程技术有限公司 | Classifying hoop |
| CN112443289A (en) * | 2019-08-27 | 2021-03-05 | 中国石油化工股份有限公司 | Packing type stage cementing device |
| CN112443289B (en) * | 2019-08-27 | 2023-01-20 | 中国石油化工股份有限公司 | Packing type stage cementing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |