CN204436328U - With the seat sliding sleeve of elastic ball - Google Patents
With the seat sliding sleeve of elastic ball Download PDFInfo
- Publication number
- CN204436328U CN204436328U CN201420827612.3U CN201420827612U CN204436328U CN 204436328 U CN204436328 U CN 204436328U CN 201420827612 U CN201420827612 U CN 201420827612U CN 204436328 U CN204436328 U CN 204436328U
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- CN
- China
- Prior art keywords
- sliding sleeve
- elastic base
- elastic
- ball
- lower contact
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Abstract
The utility model relates to oilfield drilling and production technology field, particularly relate to a kind of seat sliding sleeve with elastic ball, comprise oil pipe, ball sealer, elastic base, body, oil jacket linked hole, sliding sleeve, shear pin and lower contact, described oil pipe is connected with described body upper part, the diameter on the top of described body is less than the diameter at middle part, the top of described elastic base is placed in the top of described body, described elastic base middle and upper part ring week is uniform gathering groove in axial direction, the top of elastic base is provided with ball seal mouth, the bottom of described elastic base is provided with described sliding sleeve, described sliding sleeve is placed in body and is connected with described body by described shear pin, the body of described sliding sleeve side is provided with oil jacket linked hole, described body lower part is connected with described lower contact, and described lower contact top coordinates with bottom described sliding sleeve.Effectively change the not good phenomenon of wire sealing effectiveness that the spheroid of original structure and duct are formed, add sealing surface and labyrinth effect.
Description
Technical field
The utility model relates to oilfield drilling and production technology field, particularly relates to a kind of seat sliding sleeve with elastic ball.
Background technology
Implement in the constructions such as pressure break at oil well, sliding sleeve must be utilized to open passage between oil pipe and sleeve pipe, the technical scheme now usually adopted is, the annular resilient ball seat of a point of flap is installed on the top of sliding sleeve, contraction is arranged on body, drop into the inner via hole on ball sealer blocking body, raise tubing pressure descending by ball sealer promotion elastic base, reach the object of the oil jacket linked hole opened on body.Problem is: be irregular circumferential body after present elastic base shrinks, in petal shape.Ball sealer and elastic base can not play sealing function for this reason, so just require that the air-proof condition of ball sealer must rely on body.Also just cause body latus rectum to match with sphere diameter.But spheroid is difficult to form good dynamic sealing effect in duct.Therefore, when open sliding sleeve, the aboveground highly pressurised liquid that must inject huge discharge can reach the object of open sliding sleeve.
Another problem is: as slide over working string tool string middle and lower part use, by the restriction of upper tool latus rectum, large diameter ball sealer not by, therefore the latus rectum on body must be less than the latus rectum of upper tool, form trunnion phenomenon, cause the liquid frictional resistance of injection to increase, flow reduces.Unfavorable factor is brought to operation.
Utility model content
The purpose of this utility model is the deficiency overcoming above-mentioned technology, and provides a kind of seat sliding sleeve with elastic ball, the wire sealing effectiveness that raising spheroid and duct are formed.
The utility model for achieving the above object, by the following technical solutions: a kind of seat sliding sleeve with elastic ball, it is characterized in that: comprise oil pipe, ball sealer, elastic base, body, oil jacket linked hole, sliding sleeve, shear pin and lower contact, described oil pipe is connected with described body upper part, the diameter on the top of described body is less than the diameter at middle part, the top of described elastic base is placed in the top of described body, described elastic base middle and upper part ring week is uniform gathering groove in axial direction, the top of elastic base is provided with ball seal mouth, the bottom of described elastic base is provided with described sliding sleeve, described sliding sleeve is placed in body and is connected with described body by described shear pin, the body of described sliding sleeve side is provided with oil jacket linked hole, described body lower part is connected with described lower contact, and described lower contact top coordinates with bottom described sliding sleeve.
The outer shroud week datum of described elastic base is provided with several labyrinth seal grooves.
The inner edge suitable for reading of described elastic base is provided with the sealing surface matched with spheroid.
Sealing ring is provided with between described sliding sleeve and described body.
Sealing ring is provided with between described elastic base top and described oil pipe top.
The beneficial effects of the utility model are: 1: effectively change the not good phenomenon of wire sealing effectiveness that the spheroid of original structure and duct are formed, add sealing surface and labyrinth effect.2: ball sealer and elastic base adopt seat to enter formula and seal, under high pressure situation, effectively control leakage phenomena.3: body latus rectum is unrestricted, can according to the endoporus being decided elastic base by property of ball sealer, solve original structure only reliable body undergauge solve the problem of ball sealer by property.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that sliding sleeve is opened ball sealer and to be come off schematic diagram;
Fig. 3 is the structural representation of the utility model Elastic ball seat;
Fig. 4 is that original structure elastic ball is sat and body, shutoff matching relationship schematic diagram;
Fig. 5 is the sectional view in A-A direction in Fig. 4.
Detailed description of the invention
Detailed description of the invention of the present utility model is described in detail below in conjunction with accompanying drawing and preferred embodiment.As shown in Figure 1, a kind of seat sliding sleeve with elastic ball, comprise oil pipe 1, ball sealer 2, elastic base 3, body 4, oil jacket linked hole 41, sliding sleeve 5, shear pin 6 and lower contact 7, described oil pipe is connected with described body upper part, the diameter on the top of described body is less than the diameter at middle part, the top of described elastic base is placed in the top of described body, described elastic base middle and upper part ring week is uniform gathering groove in axial direction, the top of elastic base is provided with ball seal mouth, the bottom of described elastic base is provided with described sliding sleeve, described sliding sleeve is placed in body and is connected with described body by described shear pin, the body of described sliding sleeve side is provided with oil jacket linked hole, described body lower part is connected with described lower contact, and described lower contact top coordinates with bottom described sliding sleeve.The outer shroud week datum of described elastic base is provided with several labyrinth seal grooves.The inner edge suitable for reading of described elastic base is provided with the sealing surface matched with spheroid.Sealing ring is provided with between described sliding sleeve and described body.Sealing ring is provided with between described elastic base top and described oil pipe top.
Cut out several equal portions gaps annular resilient steel pipe is parallel, turning tool is utilized to close up closed by the gap cut open, again is lathed the annulus of rule the inner and outer ring week in petal shape, and outer shroud week datum get on the bus and cut out several labyrinth seal grooves 3-2, its principle is: the sliding fit utilizing the cylinder datum that is lathed and body endoporus to be formed seals and the flooding that utilizes maze trough to produce reaches the object that elastic base and body endoporus seal.3-1 turning or grind out the sealing surface matched with spheroid, for accepting ball sealer and sealing with its formation on elastic base inner edge suitable for reading.
Its operating principle is: sliding sleeve is connected on oil pipe 1 and enters well, when needing its work, aboveground input ball sealer 2, ball sealer drops on elastic base 3 formed with ball seal mouth 3-1 and seals, inject liquid and raised pressure from aboveground to oil pipe, be applied on elastic base by ball sealer, promote it and drive the descending shear pin 6 of sliding sleeve 5 to be cut off, after elastic base goes downwards to the ball seat restriction hole departed from body 4, expand ball sealer voluntarily and come off.Descendingly under elastic base and the impact sliding over fluid power open oil jacket linked hole 4-1, the unlatching work sliding over down-hole completes, spacing after the lower surface of sliding sleeve 5 overlaps with the upper surface of lower contact 7.
1: effectively change the not good phenomenon of wire sealing effectiveness that the spheroid of original structure and duct are formed, add sealing surface and labyrinth effect.2: ball sealer and elastic base adopt seat to enter formula and seal, under high pressure situation, effectively control leakage phenomena.3: body latus rectum is unrestricted, can according to the endoporus being decided elastic base by property of ball sealer, solve original structure only reliable body undergauge solve the problem of ball sealer by property.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. the seat sliding sleeve with elastic ball, it is characterized in that: comprise oil pipe, ball sealer, elastic base, body, oil jacket linked hole, sliding sleeve, shear pin and lower contact, described oil pipe is connected with described body upper part, the diameter on the top of described body is less than the diameter at middle part, the top of described elastic base is placed in the top of described body, described elastic base middle and upper part ring week is uniform gathering groove in axial direction, the top of elastic base is provided with ball seal mouth, the bottom of described elastic base is provided with described sliding sleeve, described sliding sleeve is placed in body and is connected with described body by described shear pin, the body of described sliding sleeve side is provided with oil jacket linked hole, described body lower part is connected with described lower contact, and described lower contact top coordinates with bottom described sliding sleeve.
2. the seat sliding sleeve with elastic ball according to claim 1, is characterized in that: the outer shroud week datum of described elastic base is provided with several labyrinth seal grooves.
3. the seat sliding sleeve with elastic ball according to claim 1, is characterized in that: the inner edge suitable for reading of described elastic base is provided with the sealing surface matched with spheroid.
4. the seat sliding sleeve with elastic ball according to claim 1, is characterized in that: be provided with sealing ring between described sliding sleeve and described body.
5. the seat sliding sleeve with elastic ball according to claim 1, is characterized in that: be provided with sealing ring between described elastic base top and described oil pipe top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420827612.3U CN204436328U (en) | 2014-12-22 | 2014-12-22 | With the seat sliding sleeve of elastic ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420827612.3U CN204436328U (en) | 2014-12-22 | 2014-12-22 | With the seat sliding sleeve of elastic ball |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204436328U true CN204436328U (en) | 2015-07-01 |
Family
ID=53604206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420827612.3U Expired - Fee Related CN204436328U (en) | 2014-12-22 | 2014-12-22 | With the seat sliding sleeve of elastic ball |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204436328U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134131A (en) * | 2015-08-18 | 2015-12-09 | 中国石油天然气股份有限公司 | Well cementation casing or tubing sliding sleeve without limit on number of segments or clusters |
| CN113338859A (en) * | 2021-07-30 | 2021-09-03 | 四川中宏瑞石油机械工程有限公司 | Mechanical underground multi-time switch bypass valve |
| CN113803025A (en) * | 2020-06-12 | 2021-12-17 | 中国石油化工股份有限公司 | Pressure testing ball seat with circulation function |
| CN113803026A (en) * | 2020-06-12 | 2021-12-17 | 中国石油化工股份有限公司 | Pressure testing ball seat with circulation function |
-
2014
- 2014-12-22 CN CN201420827612.3U patent/CN204436328U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134131A (en) * | 2015-08-18 | 2015-12-09 | 中国石油天然气股份有限公司 | Well cementation casing or tubing sliding sleeve without limit on number of segments or clusters |
| CN105134131B (en) * | 2015-08-18 | 2017-11-10 | 中国石油天然气股份有限公司 | The well cementing casing pipe or oil pipe sliding sleeve of a kind of unlimited hop count, number of clusters |
| CN113803025A (en) * | 2020-06-12 | 2021-12-17 | 中国石油化工股份有限公司 | Pressure testing ball seat with circulation function |
| CN113803026A (en) * | 2020-06-12 | 2021-12-17 | 中国石油化工股份有限公司 | Pressure testing ball seat with circulation function |
| CN113803026B (en) * | 2020-06-12 | 2023-08-11 | 中国石油化工股份有限公司 | Pressure test ball seat with circulation function |
| CN113803025B (en) * | 2020-06-12 | 2023-11-14 | 中国石油化工股份有限公司 | Pressure test ball seat with circulation function |
| CN113338859A (en) * | 2021-07-30 | 2021-09-03 | 四川中宏瑞石油机械工程有限公司 | Mechanical underground multi-time switch bypass valve |
| WO2023004908A1 (en) * | 2021-07-30 | 2023-02-02 | 四川中宏瑞石油机械工程有限公司 | Mechanical downhole multi-time switching bypass valve |
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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: 20150701 Termination date: 20161222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |