CN103147719A - Spring type automatic grout valve - Google Patents
Spring type automatic grout valve Download PDFInfo
- Publication number
- CN103147719A CN103147719A CN2013100513262A CN201310051326A CN103147719A CN 103147719 A CN103147719 A CN 103147719A CN 2013100513262 A CN2013100513262 A CN 2013100513262A CN 201310051326 A CN201310051326 A CN 201310051326A CN 103147719 A CN103147719 A CN 103147719A
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- China
- Prior art keywords
- semi
- guide rod
- guiding
- sphere guide
- valve seat
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Abstract
The invention discloses a spring type automatic grout valve, which is characterized in that an upper valve seat body(a guiding seat) and a lower valve seat body (a guiding seat) are connected with a screw thread in a casing pipe nipple; a lower rod of a semi-sphere guide rod is inserted into a guiding hole of the lower valve seat body (the guiding seat); the semi-sphere guide rod is sleeved with a plastic spring which is propped against the upper valve seat body (the guiding seat) to support the semi-sphere guide rod; an upper rod of the semi-sphere guide rod is inserted into a guiding hole of the upper valve seat body (the guiding seat); the plastic spring is support between the upper valve seat body (the guiding seat) and the semi-sphere guide rod, so that a semisphere on the semi-sphere guide rod is not contacted with a conical surface of the upper valve seat body (guiding seat), and a fluid channel is formed; and the purpose of automatic grouting is achieved. When well kick, blowout and back flow of grout after decompression completeness in well cementation grouting occurs in a pipe,, a fluid flowing at a high speed acts on a lower plane of the semisphere of the semi-sphere guide rod, the spherical surface of the semi-sphere guide rod and the conical surface of the upper valve seat body (the guiding seat) form sealing after the plastic spring is compressed or broken by extrusion, and an effect of a check valve is achieved.
Description
Technical field
The present invention relates to not stop the mode that casing job is taked manual grouting in oil drilling setting of casing process, but automatic grouting.Can guarantee also that simultaneously in generator tube well kick, blowout and well cementation slip casting end of job pressure release wait the effect of playing ball-and-seat when solidifying, avoid managing interior blowout, cement paste returns to guarantee cementing quality.
Background technology
Only play the effect of ball-and-seat because of scene float collar, float shoe, inner-string cementing device commonly used in oil drilling setting of casing process, and the restriction because of its bearing capacity and collapse resistance, setting of casing during to certain well depth for prevent float collar (float shoe or inner-string cementing device) easily cause when causing losing efficacy because of the pressure that bears is excessive in pipe well kick even gas blowout accident, prevent that sleeve pipe is squeezed and ruin and cause the reason such as other complicated sleeve pipe accident, must stop casing job and pour into mud in sleeve pipe, to avoid the generation of above-mentioned many complexity and accident.In addition because of the existence of ball-and-seat, sleeve pipe transfer in process for fear of close because of sleeve pipe annular space that row causes high return that speed causes that excessive surge pressure causes the complex situations such as leakage control the sleeve pipe lowering velocity.This has not only delayed a large amount of setting of casing time, has increased workman's labour intensity, might stop also that casing job is run affairs because of the movable untimely pressure reduction cutting ferrule that causes of sleeve pipe during mud grouting in the sleeve pipe therefore, retarding oil gas exploration progress.
Summary of the invention
For the problems of on-the-spot float collar, float shoe, the above-mentioned existence of inner-string cementing device, purpose of the present invention has aimed to provide and has not a kind ofly stopped that casing job is taked manual grouting and the mode that realizes automatic grouting.Can guarantee also simultaneously that well kick, blowout, well cementation finish to reach the effect of playing ball-and-seat when certain pressure reduction forms certain flow rate inside and outside pipe in generator tube, prevent the problem that after managing interior well kick, gas blowout accident and cementing finishes, cement paste returns.
When the principle balanced fluid that the principle of this spring automatic grout valve is scalable according to spring and elastic force is adjustable flows in the sleeve pipe, fluid acts on the power of hemisphere spool lower plane, realize the purpose of automatic grouting, the power that when flow velocity that flows in the sleeve pipe when fluid reaches certain value, fluid acts on the spool lower plane timely valve body during greater than spring force, play the purpose of ball-and-seat, avoid existing many drawbacks with float collar, float shoe and inner-string cementing device.
The objective of the invention is to complete like this:
The spring automatic grout valve mainly is comprised of casing nipple, lower valve base body [guide holder], hemisphere guide peg, plastic springs, upper valve base body [guide holder].
The bottom screwed connection of lower valve base body [guide holder] and casing nipple inside, the lower beam of hemisphere guide peg inserts in the pilot hole of lower valve base body [guide holder], plastic springs be enclosed within the hemisphere guide peg the upper end, withstand on upper formation of upper valve base body [guide holder] and support, the upper boom of hemisphere guide peg inserts in the pilot hole of upper valve base body [guide holder], and upper valve base body [guide holder] is also used screwed connection with the top of casing nipple inside.
The beneficial effect of advantage of the present invention and generation is:
1, the present invention is simple in structure, adopts conventional part assembling, is easy to processing.Plastic springs is supported between upper valve base body [guide holder] and hemisphere guide peg and forms the fluid passage, reaches the purpose of automatic grouting.When occuring well kick, blowout and well cementation for the complete pressure relief water mud refluence of mud in pipe, swiftly flowing fluid acts on the lower plane of hemisphere guide peg hemisphere, the have no progeny conical surface of sphere and upper valve base body [guide holder] of hemisphere guide peg of the compressed or extruding of plastic springs forms and seals, and plays the effect of ball-and-seat.Reasonable and compact in structure, easy to use, and safe and reliable.
2, after field trial of the present invention success, not only do not stop the casing job operation of being in the milk when applying, also can accelerate the sleeve pipe lowering velocity.This not only can save a large amount of time, also can avoid running affairs former because of the cutting ferrule that stops the movable untimely generation of casing job.
What 3, ball-and-seat of the present invention adopted is plastic springs, is also the drillability material, so all casing hardwares all can bore, saves drilling period, greatly reduces post workman's labour intensity, accelerates the oil-gas exploration progress.
Description of drawings
Fig. 1 is sectional view of the present invention.
The specific embodiment
As shown in Figure 1, a kind of spring automatic grout valve mainly is comprised of casing nipple 1, lower valve base body [guide holder] 2, hemisphere guide peg 3, plastic springs 4, upper valve base body [guide holder] 5.
Claims (1)
1. a spring automatic grout valve mainly is comprised of casing nipple (1), lower valve base body [guide holder] (2), hemisphere guide peg (3), plastic springs (4), upper valve base body [guide holder] (5).
It is characterized in that the bottom screwed connection that lower valve base body [guide holder] (2) is inner with casing nipple (1), the lower beam of hemisphere guide peg (3) inserts in the pilot hole of lower valve base body [guide holder] (2), plastic springs (4) is enclosed within on hemisphere guide peg (3), withstand on upper valve base body [guide holder] (5) upper support hemisphere guide peg, the upper boom of hemisphere guide peg (3) inserts in the pilot hole of upper valve base body [guide holder] (5), the top screwed connection that upper valve base body [guide holder] (5) is inner with casing nipple (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100513262A CN103147719A (en) | 2013-01-09 | 2013-01-09 | Spring type automatic grout valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100513262A CN103147719A (en) | 2013-01-09 | 2013-01-09 | Spring type automatic grout valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103147719A true CN103147719A (en) | 2013-06-12 |
Family
ID=48546002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100513262A Pending CN103147719A (en) | 2013-01-09 | 2013-01-09 | Spring type automatic grout valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103147719A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115898327A (en) * | 2023-03-01 | 2023-04-04 | 山东健源石油工程技术有限公司 | Rotary self-guiding type float shoe for horizontal well |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020162661A1 (en) * | 2001-05-03 | 2002-11-07 | Krauss Christiaan D. | Delayed opening ball seat |
| CN201027529Y (en) * | 2007-05-25 | 2008-02-27 | 刘亚 | Automatic fill-up float collar of casing tube |
| CN201129164Y (en) * | 2007-12-28 | 2008-10-08 | 郎世魁 | Floating hoop and floating shoe core body with self-pouring function convenient for connecting |
| RU2370633C1 (en) * | 2008-06-10 | 2009-10-20 | Общество с ограниченной ответственностью "Союзнефтегаздинамикк" | Adjustable pressure regulator |
| CN102061904A (en) * | 2010-11-20 | 2011-05-18 | 中国石油集团西部钻探工程有限公司 | Automatic grout valve of adjustable pressure difference type |
| CN202249946U (en) * | 2011-08-12 | 2012-05-30 | 卫国 | Intelligent float valve |
-
2013
- 2013-01-09 CN CN2013100513262A patent/CN103147719A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020162661A1 (en) * | 2001-05-03 | 2002-11-07 | Krauss Christiaan D. | Delayed opening ball seat |
| CN201027529Y (en) * | 2007-05-25 | 2008-02-27 | 刘亚 | Automatic fill-up float collar of casing tube |
| CN201129164Y (en) * | 2007-12-28 | 2008-10-08 | 郎世魁 | Floating hoop and floating shoe core body with self-pouring function convenient for connecting |
| RU2370633C1 (en) * | 2008-06-10 | 2009-10-20 | Общество с ограниченной ответственностью "Союзнефтегаздинамикк" | Adjustable pressure regulator |
| CN102061904A (en) * | 2010-11-20 | 2011-05-18 | 中国石油集团西部钻探工程有限公司 | Automatic grout valve of adjustable pressure difference type |
| CN202249946U (en) * | 2011-08-12 | 2012-05-30 | 卫国 | Intelligent float valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115898327A (en) * | 2023-03-01 | 2023-04-04 | 山东健源石油工程技术有限公司 | Rotary self-guiding type float shoe for horizontal well |
| CN115898327B (en) * | 2023-03-01 | 2023-05-02 | 山东健源石油工程技术有限公司 | Rotary self-guiding type floating shoe for horizontal well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130612 |
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| WD01 | Invention patent application deemed withdrawn after publication |