CN204419117U - Extended type exempts to bore sizing collar one-level plug - Google Patents
Extended type exempts to bore sizing collar one-level plug Download PDFInfo
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- CN204419117U CN204419117U CN201420817269.4U CN201420817269U CN204419117U CN 204419117 U CN204419117 U CN 204419117U CN 201420817269 U CN201420817269 U CN 201420817269U CN 204419117 U CN204419117 U CN 204419117U
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- scraping wing
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Abstract
The utility model relates to extended type and exempts to bore sizing collar one-level plug, and a kind of extended type exempts to bore sizing collar one-level plug, and comprise center-pole, described center-pole one end is fixedly connected with sphere plug head, and described center-pole is provided with 20
0the scraping wing and 40
0the scraping wing, described 20
0the scraping wing and 40
0scraping is interplane every setting.The scraping wing diameter of two kinds of angles is 126mm, reduces the degree of wear, enhances and scrape for effect, and adds 1 scraping wing and make shaving effect more obvious; Sphere plug first watch is easily once setting to put in place; Center-pole, by 28mm, to be increased to when 30mm makes plug advance in sleeve pipe not easily bending; Increase and be with pressure cap, the scraping wing not easily slippage when plug is advanced in sleeve pipe.Contrast extended type one-level plug with virgin rubber plug not only scraping for even better in effect, and safer when using, can be used in widely in various casing programme.
Description
Technical field
The utility model relates to extended type and exempts to bore sizing collar one-level plug.
Background technology
Along with the increasing of Oilfield Company exploitation dynamics, region prospect pit constantly increases, probing well depth increases, the maximum probing well depth of Changqing oilfields oil well deckle block reaches 3200 meters, maximum vertical depth reaches 2900 meters, oil layer section (from YAN ' AN FORMATION to prolongation group) span reaches 900 meters, and one-time up-return well shaft fixing technology can not meet cementing requirements at all, and Changqing oilfields company development plan requires that the well of vertical depth more than 2500 meters must use fraclional well cementing technology.Exempt to bore sizing collar inevitably to obtain applying more and more widely and thereupon also occurred many problems.
Plane plug head is not easily once setting to put in place; The wide 129mm of plane plug wing diameter, easy to wear and not easily finely tune form in 124mm sleeve pipe; The wide 28mm in plug center-pole footpath, yielding in sleeve pipe, plug can not be put in place with impacting seat once sealing; Draw from well workover abrasive drilling concrete condition, the one-level plug wing easily causes for empty accident from afterbody slippage.
And be greater than 5 meters of wells through statistics cement plug account for 24% of total well number.Therefore must fill in row improvement to primary amine particularly usually to occur in the middle of the application of oil well deep-well for empty with satisfied well cementation demand, do not touch the well cementation accident of pressure, in order to ensure completing smoothly of cementing operation, obtain the cementing quality of high-quality, special research and development extended type exempts to bore sizing collar one-level plug simultaneously.
Utility model content
The purpose of this utility model solves that plane plug head is not easily once setting to put in place; The wide 129mm of plane plug wing diameter, easy to wear and not easily finely tune form in 124mm sleeve pipe; The wide 28mm in plug center-pole footpath, yielding in sleeve pipe, plug can not be put in place with impacting seat once sealing; Draw from well workover abrasive drilling concrete condition, the one-level plug wing easily causes the problem for empty accident from afterbody slippage, and the utility model provides a kind of extended type to exempt to bore sizing collar one-level plug, can realize once setting, not yielding, the feature of not easily landing safely.
The technical solution adopted in the utility model is:
A kind of extended type exempts to bore sizing collar one-level plug, and comprise center-pole, described center-pole one end is fixedly connected with sphere plug head, and described center-pole is provided with 20
0the scraping wing and 40
0the scraping wing, described 20
0the scraping wing and 40
0scraping is interplane every setting.
Described sphere plug head is made up of aluminium alloys.
Described center-pole length is 30mm.
Described 20
0the scraping wing and 40
0the scraping wing is compressed on center-pole and is made up of silica gel.
Described 20
0the scraping wing and 40
0the diameter of the scraping wing is 126mm.
The described center-pole other end is provided with pressure cap.
The beneficial effects of the utility model:
Extended type one-level plug is exempting to have the following advantages in the construction of brill Stage collar casing:
1, scraping wing diameter is 126mm, not easy to wear in the sleeve pipe of 124mm.
2, the bowl dress scraping wing of two kinds of angles is more easily finely tuned form and is reduced the degree of wear, enhances and scrapes for effect.
3, center-pole is by 28mm, to be increased to when 30mm makes plug advance in sleeve pipe not easily bending.
4, the increase of the diameter of axle more easily make plug in sleeve pipe in placed in the middle.
5, adding 1 scraping wing makes shaving effect more obvious.
6, easily once settingly to put in place on sphere steel plug first watch.
7, increasing has been with pressure cap, the scraping wing not easily slippage when plug is advanced in sleeve pipe.
Contrast novel one-level plug with virgin rubber plug not only scraping for even better in effect, and safer when using, can be used in widely in various casing programme.
Be described in detail below with reference to accompanying drawing.
Accompanying drawing explanation
Fig. 1 is that extended type exempts to bore sizing collar primary amine plug structure schematic diagram.
In figure, Reference numeral: 1, pressure cap; 2,20
0the scraping wing; 3,40
0the scraping wing; 4, sphere plug head; 5, center-pole.
Detailed description of the invention
Embodiment 1
In order to solve, plane plug head is not easily once setting to put in place; The wide 129mm of plane plug wing diameter, easy to wear and not easily finely tune form in 124mm sleeve pipe; The wide 28mm in plug center-pole footpath, yielding in sleeve pipe, plug can not be put in place with impacting seat once sealing; Draw from well workover abrasive drilling concrete condition, the one-level plug wing easily causes the problem for empty accident from afterbody slippage, and the utility model provides a kind of extended type as shown in Figure 1 to exempt to bore sizing collar one-level plug, can realize once setting, not yielding, the feature of not easily landing safely.
A kind of extended type exempts to bore sizing collar one-level plug, and it is characterized in that: comprise center-pole 5, described center-pole 5 one end is fixedly connected with sphere plug head 4, and described center-pole 5 is provided with 20
0the scraping wing 2 and 40
0the scraping wing 3, described 20
0the scraping wing 2 and 40
0the scraping wing 3 interval is arranged.
Described sphere plug head 4 is made up of aluminium alloys.
Described center-pole 5 length is 30mm.
Exempt to bore sizing collar stricter to the displacement requirements in displacement process when constructing, due to the one-level plug 17.5cm longer than virgin rubber plug after improvement, require when first order plug comes downwards to 100m on sizing collar, discharge capacity should be reduced to about 500L/min, implementation bicycle replaces, prevent from one-level plug from putting in place to overrun, break sizing collar internal construction.When second level cementing operation, when secondary plug comes downwards to sizing collar position 100-200m, discharge capacity should be reduced to below 500L/min, to ensure that plug is slowly descending, slow down bruising impact force, answer the bruising action of careful observation secondary plug and pressure changing, pressure drop when record shut-off plug is taken off in detail, to judge that whether sliding sleeve is working properly.
The utility model relate to extended type exempt to bore the application of sizing collar one-level plug scene all can normally bruising, and to scrape for respond well.
Embodiment 2
On basis based on embodiment 1, described 20
0the scraping wing 2 and 40
0the scraping wing 3 is compressed on center-pole 5 and is made up of silica gel.
Described 20
0the scraping wing 2 and 40
0the diameter of the scraping wing 3 is 126mm.
Described center-pole 5 other end is provided with pressure cap 1.
The wide 50mm of the diameter of axle of the present utility model, overall length 473mm, the wide 126mm of scraping wing diameter of two kinds of angles, 20
0the scraping wing 2 and 40
0the scraping wing 3 is bowl-shape and interval is arranged, one 40
0two 20 are arranged after the scraping wing
0the scraping wing 2, such setting saves space, adds a scraping wing, is six altogether.Increase and be with pressure cap 1, employ two kinds of angle bowl dress scraping wings and add a scraping wing.
One-level plug after improvement is by field trial, application 17 mouthfuls, and all succeed, first-time qualification rate is 100%.Exempt to bore sizing collar in use one-level can not the problem of bruising be solved, cement plug length obviously reduces, and scrapes for effective.
The utility model has the following advantages, and the scraping wing diameter of two kinds of angles is 126mm, not easy to wear in the sleeve pipe of 124mm; The bowl dress scraping wing of two kinds of angles is more easily finely tuned form and is reduced the degree of wear, enhances and scrapes for effect; Center-pole 5, by 28mm, to be increased to when 30mm makes plug advance in sleeve pipe not easily bending; The increase of the diameter of axle more easily make plug in sleeve pipe in add 1 scraping wing between two parties and make shaving effect more obvious; Sphere plug head 4 is more easily once setting to put in place; Increase be with pressure cap 1, make into time operation time, the scraping wing not easily slippage of two kinds of angles.
Contrast novel one-level plug with virgin rubber plug not only scraping for even better in effect, and safer when using, can be used in widely in various casing programme.
Claims (6)
1. extended type exempts to bore a sizing collar one-level plug, and it is characterized in that: comprise center-pole (5), described center-pole (5) one end is fixedly connected with sphere plug head (4), and (5) are provided with 20 with described center-pole
0the scraping wing (2) and 40
0the scraping wing (3), described 20
0the scraping wing (2) and 40
0the scraping wing (3) interval is arranged.
2. a kind of extended type according to claim 1 exempts to bore sizing collar one-level plug, it is characterized in that: described sphere plug head (4) is made up of aluminium alloys.
3. a kind of extended type according to claim 1 exempts to bore sizing collar one-level plug, it is characterized in that: described center-pole (5) length is 30mm.
4. a kind of extended type according to claim 1 exempts to bore sizing collar one-level plug, it is characterized in that: described 20
0the scraping wing (2) and 40
0the scraping wing (3) is compressed on center-pole (5) and is made up of silica gel.
5. a kind of extended type according to claim 1 exempts to bore sizing collar one-level plug, it is characterized in that: described 20
0the scraping wing (2) and 40
0the diameter of the scraping wing (3) is 126mm.
6. a kind of extended type according to claim 1 exempts to bore sizing collar one-level plug, it is characterized in that: described center-pole (5) other end is provided with pressure cap (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420817269.4U CN204419117U (en) | 2014-12-22 | 2014-12-22 | Extended type exempts to bore sizing collar one-level plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420817269.4U CN204419117U (en) | 2014-12-22 | 2014-12-22 | Extended type exempts to bore sizing collar one-level plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204419117U true CN204419117U (en) | 2015-06-24 |
Family
ID=53469499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420817269.4U Active CN204419117U (en) | 2014-12-22 | 2014-12-22 | Extended type exempts to bore sizing collar one-level plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204419117U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555563A (en) * | 2015-09-24 | 2017-04-05 | 中国石油化工股份有限公司 | Casing recess cleans well cementing impact pressure plug |
-
2014
- 2014-12-22 CN CN201420817269.4U patent/CN204419117U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555563A (en) * | 2015-09-24 | 2017-04-05 | 中国石油化工股份有限公司 | Casing recess cleans well cementing impact pressure plug |
| CN106555563B (en) * | 2015-09-24 | 2019-09-20 | 中国石油化工股份有限公司 | Casing recess cleans well cementing impact pressure rubber plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |