CN202273650U - Well cementing valve - Google Patents
Well cementing valve Download PDFInfo
- Publication number
- CN202273650U CN202273650U CN 201120419643 CN201120419643U CN202273650U CN 202273650 U CN202273650 U CN 202273650U CN 201120419643 CN201120419643 CN 201120419643 CN 201120419643 U CN201120419643 U CN 201120419643U CN 202273650 U CN202273650 U CN 202273650U
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- inboard
- valve body
- valve
- crossover sub
- connector
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Abstract
The utility model relates to the technical field of petroleum well cementing and completion devices, in particular to a well cementing valve. The well cementing valve comprises an upper joint, a switching joint, a lower joint, a mandrel sliding sleeve and a pin seat, wherein the outer side of the lower end of the upper joint and the inner side of the upper end of the switching joint are fixedly arranged together; a connector of which the internal diameter is less than that of the switching joint is fixed on the inner side of the lower end of the switching joint; the outer side of the lower end of the connector and the inner side of the upper end of the lower joint are fixedly arranged together; the pin seat is fixedly arranged in the upper joint; the upper end of the mandrel sliding sleeve is fixedly arranged in the pin seat through a shear pin; the mandrel sliding sleeve is sleeved in the upper joint and the connector; and an upper valve block which can be opened and closed is arranged in a cavity among the upper joint, the mandrel sliding sleeve, the switching joint and the connector. The well cementing valve has the advantages of rational and compact structure, convenience in use and capabilities of realizing opening and closing of the valve block through mechanical and hydraulic matching, realizing one-way repeated opening and reverse sealing, strictly preventing well cementing grout from refluxing and improving well cementing quality.
Description
Technical field
the utility model relates to the solid completion system technical field of oil, is a kind of well cementation valve.
Background technology
conventional cementing is to adopt float shoe, float collar to match with cementing plug and carry out cementing job, has advantages such as simple to operate, technology maturation.Yet; In cement paste curing time section; Because acting on the pressure (cementing operation pressure) of pit shaft die-offs; The existence of pressure reduction is prone to produce U type tube effect in pit shaft and the annular space in addition, and not solidified cement paste is blowed back in the pit shaft, greatly reduces annular space cement sheath compactness extent and fixed quality.
Summary of the invention
the utility model provides a kind of well cementation valve; Overcome the deficiency of above-mentioned prior art; It can effectively solve in the well cementing operation process, and cement paste blows back in the pit shaft and causes having reduced annular space cement sheath compactness extent and fixed ropy problem.
The technical scheme of
the utility model realizes through following measure: a kind of well cementation valve comprises top connection, crossover sub, lower contact, axle sliding sleeve and dowel bushing; The inboard, upper end of the lower outside of top connection and crossover sub is fixedly installed togather; Be fixed with the connector of internal diameter in the inboard, lower end of crossover sub less than the crossover sub internal diameter; The inboard, upper end of the lower outside of connector and lower contact is fixedly installed togather; In top connection, be installed with dowel bushing; The upper end of axle sliding sleeve is fixedly mounted in the dowel bushing through shear pin, and the axle sliding sleeve is sleeved in top connection and the connector, be equipped with in the cavity between top connection, axle sliding sleeve, crossover sub and connector can opening and closing on valve sets; The lower valve group of ability opening and closing is installed in the cavity between axle sliding sleeve, lower contact and connector, is fixed with the billiard table of through hole in the inboard, lower end of axle sliding sleeve.
Be to the further optimization of above-mentioned utility model technical scheme below or/and improve:
above-mentioned valve sets that goes up can comprise upper valve body, go up valve plate and torsion spring; Upper valve body is fixedly mounted in the top connection and is sleeved on the axle sliding sleeve; On the axle sliding sleeve below the upper valve body, be set with valve plate; Between upper valve body and last valve plate, be hinged with torsion spring; On upper valve body and last valve plate, mounting groove is arranged respectively, the last clamp of torsion spring is installed in the mounting groove of upper valve body, and the following clamp of torsion spring is installed in the mounting groove of valve plate; The lower end of upper valve body is taper type wide outside and narrow inside, and the lower end of last valve plate is and the corresponding taper type in the lower end of upper valve body; The lower valve group comprises valve body, lower valve plate and torsion spring down; Following valve body is fixedly mounted in the lower contact and is sleeved on the axle sliding sleeve; On the axle sliding sleeve below the following valve body, be set with lower valve plate; Be hinged with torsion spring between valve body and the lower valve plate down; On valve body and the lower valve plate mounting groove is being arranged respectively down, the last clamp of torsion spring is installed on down in the mounting groove of valve body, and the following clamp of torsion spring is installed in the mounting groove of lower valve plate; The lower end of following valve body is taper type wide outside and narrow inside, and the lower end of lower valve plate is the corresponding taper type in lower end with following valve body.
On
above-mentioned crossover sub inner convex platform can be arranged, in the outside, upper end of upper valve body Ka Tai arranged, the card decometer is contained in the crossover sub between top connection and the inner convex platform; Inner convex platform is arranged in lower contact, in the outside, upper end of following valve body Ka Tai is arranged, the card decometer is contained in the lower contact between connector and the inner convex platform.
The inboard, lower end of
above-mentioned crossover sub can be taper type wide at the top and narrow at the bottom; The inboard, lower end of lower contact is fixed with interior step.
lower outside of above-mentioned top connection and the inboard, upper end of crossover sub can be fixedly installed togather through screw thread, and the inboard, upper end of the lower outside of connector and lower contact is fixedly installed togather through screw thread.
Between
lower outside of above-mentioned top connection and the inboard, upper end of crossover sub sealing ring can be installed, between Ka Tai and crossover sub, sealing ring be installed; Between the inboard, upper end of the lower outside of connector and lower contact sealing ring is installed, between Ka Tai and lower contact, sealing ring is installed.
the utility model reasonable and compact in structure, easy to use, through the cooperate switching that realize valve group of machinery, can realize the unidirectional unlatching that repeats, and realize reverse sealing with hydraulic pressure, be strictly on guard against that cementing slurry flows backwards, and has improved cementing quality.
Description of drawings
accompanying drawing 1 is looked the half section structural representation for the master of the utility model most preferred embodiment.
Coding in
accompanying drawing is respectively: 1 is top connection, and 2 is crossover sub, and 3 are lower contact, and 4 is the axle sliding sleeve, and 5 is dowel bushing; 6 is billiard table, and 7 is sealing ring, and 8 is connector, and 9 is shear pin, and 10 is upper valve body; 11 is last valve plate, and 12 is torsion spring, and 13 is last clamp, and 14 are following clamp, and 15 are following valve body; 16 is lower valve plate, and 17 is inner convex platform, and 18 is Ka Tai, and 19 is interior step.
The specific embodiment
the utility model does not receive the restriction of following embodiment, can confirm concrete embodiment according to the technical scheme and the actual conditions of the utility model.
are in the utility model; For the ease of describing; The description of the relative position relation of each parts all is to describe according to the Butut mode of Figure of description, as: the position relation of upper and lower, left and right etc. is what to confirm according to the Butut direction of Figure of description.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
shown in accompanying drawing 1, this well cementation valve comprises top connection 1, crossover sub 2, lower contact 3, axle sliding sleeve 4 and dowel bushing 5; The inboard, upper end of the lower outside of top connection 1 and crossover sub 2 is fixedly installed togather; Be fixed with the connector 8 of internal diameter less than crossover sub 2 internal diameters in the inboard, lower end of crossover sub 2; The inboard, upper end of the lower outside of connector 8 and lower contact 3 is fixedly installed togather; In top connection 1, be installed with dowel bushing 5; The upper end of axle sliding sleeve 4 is fixedly mounted in the dowel bushing 5 through shear pin 9, and axle sliding sleeve 4 is sleeved in top connection 1 and the connector 8, be equipped with in the cavity between top connection 1, axle sliding sleeve 4, crossover sub 2 and connector 8 can opening and closing on valve sets; The lower valve group of ability opening and closing is installed in the cavity between axle sliding sleeve 4, lower contact 3 and connector 8, is fixed with the billiard table 6 of through hole in the inboard, lower end of axle sliding sleeve 4.
Can according to actual needs above-mentioned well cementation valve be done further to optimize or/and improve:
shown in accompanying drawing 1, last valve sets comprises upper valve body 10, goes up valve plate 11 and torsion spring 12; Upper valve body 10 is fixedly mounted in the top connection 1 and is sleeved on the axle sliding sleeve 4; On the axle sliding sleeve 4 below the upper valve body 10, be set with valve plate 11; Between upper valve body 10 and last valve plate 11, be hinged with torsion spring 12; On upper valve body 10 and last valve plate 11, mounting groove is arranged respectively, the last clamp 13 of torsion spring 12 is installed in the mounting groove of upper valve body 10, and the following clamp 14 of torsion spring 12 is installed in the mounting groove of valve plate 11; The lower end of upper valve body 10 is taper type wide outside and narrow inside, and the lower end of last valve plate 11 is and the corresponding taper type in the lower end of upper valve body 10; The lower valve group comprises valve body 15, lower valve plate 16 and torsion spring 12 down; Following valve body 15 is fixedly mounted in the lower contact 3 and is sleeved on the axle sliding sleeve 4; On the axle sliding sleeve 4 below the following valve body 15, be set with lower valve plate 16; Be hinged with torsion spring 12 between valve body 15 and the lower valve plate 16 down; On valve body 15 and the lower valve plate 16 mounting groove is being arranged respectively down, the last clamp 13 of torsion spring 12 is installed on down in the mounting groove of valve body 15, and the following clamp 14 of torsion spring 12 is installed in the mounting groove of lower valve plate 16; The lower end of following valve body 15 is taper type wide outside and narrow inside, and the lower end of lower valve plate 16 is the corresponding taper type in lower end with following valve body 15.Like this; Under torsion spring 12 twisting forces; Last valve plate 11 is in respectively under nature with upper valve body 10 with lower valve plate 16 and also forms metallic seals with upper valve body 10 and following valve body 15 respectively with following valve body 15 vertical states; And since last valve plate 11 backed down by axle sliding sleeve 4 with lower valve plate 16, thereby valve plate 11 is forced be in the state parallel with upper valve body 10, lower valve plate 16 is forced the state parallel with following valve body 15 that be in.
for the ease of installing, have inner convex platform 17 on crossover sub 2 shown in accompanying drawing 1, in the outside, upper end of upper valve body 10 card platform 18 is arranged, and card platform 18 is installed in the crossover sub 2 between top connection 1 and the inner convex platform 17; Inner convex platform 17 is arranged in lower contact 3, in the outside, upper end of following valve body 15 card platform 18 is arranged, card platform 18 is installed in the lower contact 3 between connector 8 and the inner convex platform 17.
shown in accompanying drawing 1, the inboard, lower end of crossover sub 2 is taper type wide at the top and narrow at the bottom; The inboard, lower end of lower contact 3 is fixed with interior step 19.
are shown in accompanying drawing 1; For the ease of installation and removal; The inboard, upper end of the lower outside of top connection 1 and crossover sub 2 is fixedly installed togather through screw thread, and the inboard, upper end of the lower outside of connector 8 and lower contact 3 is fixedly installed togather through screw thread.
in order to increase sealing, are equipped with sealing ring 7 between the inboard, upper end of the lower outside of top connection 1 and crossover sub 2 shown in accompanying drawing 1, between card platform 18 and crossover sub 2, sealing ring 7 is installed; Between the inboard, upper end of the lower outside of connector 8 and lower contact 3 sealing ring 7 is installed, between card platform 18 and lower contact 3, sealing ring 7 is installed.
above technical characterictic has constituted the most preferred embodiment of the utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
The use of
the utility model most preferred embodiment: the utility model is connected the bunch tube bottom, and cementing from well head pitching to axle sliding sleeve 4 bottoms, begins to build the pressure and cuts off to shear pin 9 after finishing, and axle sliding sleeve 4 integral body move down.Last valve sets and lower valve group are after axle sliding sleeve 4 is removed; Under the effect of torsion spring 12; Last valve plate 11 rotates up 90 ° with lower valve plate 16; Form metallic seal with upper valve body 10 and following valve body 15 respectively, can pit shaft and annular space two cover pressure systems be carried out packing, prevent that the annular space cement paste from blowing back into pit shaft.Open once more with lower valve plate 16 if need to go up valve plate 11, but forward is suppressed unlatching.After cement paste is fixed, can be lowered to drill bit and will goes up valve plate 11 and bore, realize the completion exploitation with lower valve plate 16.
Claims (10)
1. a well cementation valve is characterized in that comprising top connection, crossover sub, lower contact, axle sliding sleeve and dowel bushing; The inboard, upper end of the lower outside of top connection and crossover sub is fixedly installed togather; Be fixed with the connector of internal diameter in the inboard, lower end of crossover sub less than the crossover sub internal diameter; The inboard, upper end of the lower outside of connector and lower contact is fixedly installed togather; In top connection, be installed with dowel bushing; The upper end of axle sliding sleeve is fixedly mounted in the dowel bushing through shear pin, and the axle sliding sleeve is sleeved in top connection and the connector, be equipped with in the cavity between top connection, axle sliding sleeve, crossover sub and connector can opening and closing on valve sets; The lower valve group of ability opening and closing is installed in the cavity between axle sliding sleeve, lower contact and connector, is fixed with the billiard table of through hole in the inboard, lower end of axle sliding sleeve.
2. well cementation valve according to claim 1 is characterized in that valve sets comprises upper valve body, goes up valve plate and torsion spring; Upper valve body is fixedly mounted in the top connection and is sleeved on the axle sliding sleeve; On the axle sliding sleeve below the upper valve body, be set with valve plate; Between upper valve body and last valve plate, be hinged with torsion spring; On upper valve body and last valve plate, mounting groove is arranged respectively, the last clamp of torsion spring is installed in the mounting groove of upper valve body, and the following clamp of torsion spring is installed in the mounting groove of valve plate; The lower end of upper valve body is taper type wide outside and narrow inside, and the lower end of last valve plate is and the corresponding taper type in the lower end of upper valve body; The lower valve group comprises valve body, lower valve plate and torsion spring down; Following valve body is fixedly mounted in the lower contact and is sleeved on the axle sliding sleeve; On the axle sliding sleeve below the following valve body, be set with lower valve plate; Be hinged with torsion spring between valve body and the lower valve plate down; On valve body and the lower valve plate mounting groove is being arranged respectively down, the last clamp of torsion spring is installed on down in the mounting groove of valve body, and the following clamp of torsion spring is installed in the mounting groove of lower valve plate; The lower end of following valve body is taper type wide outside and narrow inside, and the lower end of lower valve plate is the corresponding taper type in lower end with following valve body.
3. well cementation valve according to claim 2 is characterized in that inner convex platform is arranged on the crossover sub, in the outside, upper end of upper valve body Ka Tai is arranged, and the card decometer is contained in the crossover sub between top connection and the inner convex platform; Inner convex platform is arranged in lower contact, in the outside, upper end of following valve body Ka Tai is arranged, the card decometer is contained in the lower contact between connector and the inner convex platform.
4. according to claim 1 or 2 or 3 described well cementation valves, it is characterized in that the inboard, lower end of crossover sub is taper type wide at the top and narrow at the bottom; The inboard, lower end of lower contact is fixed with interior step.
5. according to claim 1 or 2 or 3 described well cementation valves; It is characterized in that the lower outside of top connection and the inboard, upper end of crossover sub are fixedly installed togather through screw thread, the inboard, upper end of the lower outside of connector and lower contact is fixedly installed togather through screw thread.
6. well cementation valve according to claim 4 is characterized in that the lower outside of top connection and the inboard, upper end of crossover sub are fixedly installed togather through screw thread, and the inboard, upper end of the lower outside of connector and lower contact is fixedly installed togather through screw thread.
7. well cementation valve according to claim 3 is characterized in that between the inboard, upper end of lower outside and crossover sub of top connection sealing ring being installed, and between Ka Tai and crossover sub, sealing ring is installed; Between the inboard, upper end of the lower outside of connector and lower contact sealing ring is installed, between Ka Tai and lower contact, sealing ring is installed.
8. well cementation valve according to claim 4 is characterized in that between the inboard, upper end of lower outside and crossover sub of top connection sealing ring being installed, and between Ka Tai and crossover sub, sealing ring is installed; Between the inboard, upper end of the lower outside of connector and lower contact sealing ring is installed, between Ka Tai and lower contact, sealing ring is installed.
9. well cementation valve according to claim 5 is characterized in that between the inboard, upper end of lower outside and crossover sub of top connection sealing ring being installed, and between Ka Tai and crossover sub, sealing ring is installed; Between the inboard, upper end of the lower outside of connector and lower contact sealing ring is installed, between Ka Tai and lower contact, sealing ring is installed.
10. well cementation valve according to claim 6 is characterized in that between the inboard, upper end of lower outside and crossover sub of top connection sealing ring being installed, and between Ka Tai and crossover sub, sealing ring is installed; Between the inboard, upper end of the lower outside of connector and lower contact sealing ring is installed, between Ka Tai and lower contact, sealing ring is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120419643 CN202273650U (en) | 2011-10-29 | 2011-10-29 | Well cementing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120419643 CN202273650U (en) | 2011-10-29 | 2011-10-29 | Well cementing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202273650U true CN202273650U (en) | 2012-06-13 |
Family
ID=46194014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120419643 Expired - Lifetime CN202273650U (en) | 2011-10-29 | 2011-10-29 | Well cementing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202273650U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106854985A (en) * | 2015-12-08 | 2017-06-16 | 中国石油天然气股份有限公司 | Underground throttle and oil field gas production system |
| CN108457619A (en) * | 2018-02-14 | 2018-08-28 | 中国石油集团西部钻探工程有限公司 | Less radio-frequency trigger-type multiple switching by-pass valve device assembly |
| CN108590574A (en) * | 2018-06-29 | 2018-09-28 | 中国石油化工股份有限公司 | A kind of stage cementing device with packing function |
-
2011
- 2011-10-29 CN CN 201120419643 patent/CN202273650U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106854985A (en) * | 2015-12-08 | 2017-06-16 | 中国石油天然气股份有限公司 | Underground throttle and oil field gas production system |
| CN106854985B (en) * | 2015-12-08 | 2023-04-25 | 中国石油天然气股份有限公司 | Downhole choke and oil field gas production system |
| CN108457619A (en) * | 2018-02-14 | 2018-08-28 | 中国石油集团西部钻探工程有限公司 | Less radio-frequency trigger-type multiple switching by-pass valve device assembly |
| CN108590574A (en) * | 2018-06-29 | 2018-09-28 | 中国石油化工股份有限公司 | A kind of stage cementing device with packing function |
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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 |
Granted publication date: 20120613 |
|
| CX01 | Expiry of patent term |