CN201474650U - Sleeve pipe shearing flashboard of blowout preventer - Google Patents
Sleeve pipe shearing flashboard of blowout preventer Download PDFInfo
- Publication number
- CN201474650U CN201474650U CN2009201669224U CN200920166922U CN201474650U CN 201474650 U CN201474650 U CN 201474650U CN 2009201669224 U CN2009201669224 U CN 2009201669224U CN 200920166922 U CN200920166922 U CN 200920166922U CN 201474650 U CN201474650 U CN 201474650U
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- China
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- flashboard
- sleeve pipe
- shear ram
- groove
- knife body
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Abstract
The utility model relates to a sleeve pipe shearing flashboard of a blowout preventer, which is applied to a well control blowout preventer of a petroleum drilling; the sleeve pipe shearing flashboard of the blowout preventer is characterized in that: an upper shearing flashboard and a lower shearing flashboard are embedded mutually, an upper cutter body is arranged at the upper part of the embedding end of the upper shearing flashboard, a lower cutter body is arranged at the lower part of the embedding end of the lower shearing flashboard, the front ends of the upper cutter body and the lower cutter body are provided with V-shaped knife edges, an included angle of the plane of the V-shaped knife edge and the inclined surface of the V-shaped knife edge is 55-70 degrees, grooves are arranged at the upper part of the embedding end of the upper shearing flashboard and the lower part of the embedding end of the lower shearing flashboard and are cutter body embedding grooves, and the opposite walls of the grooves are parallel; the sleeve pipe shearing flashboard of the blowout preventer has the effect that the sleeve pipe shearing flashboard is arranged in the blowout preventer, when blowing out happens, the sleeve pipe is cut off, so as to realize safe operation of the sleeve pipe; the sleeve pipe shearing flashboard is used for shearing large-diameter petroleum sleeve pipes in a large-path blowout preventer, after the pipe is cut off, the well mouth does not need to be sealed and the sleeve pipe is matched with the flashboard with sealing function to realize shut-in.
Description
Technical field
The utility model relates to the petroleum drilling technology field, and particularly the well control device preventer of drilling well is a sleeve pipe shear ram special-purpose on a kind of well drilling blowout prevention device.
Background technology
In the drilling well casing job process, gas blowout accident seldom takes place.It is to control the most important device of blowout that preventer is installed in well head.When blowout took place, well liquid can be by the ejection of cover tube hub.Use the sleeve pipe shear ram of preventer can cut off large diameter sleeve pipe in the well, cooperate the flashboard of full envelope function to use, can prevent that well liquid from spraying in sleeve pipe.
At present, the drilling rod shear ram of conventional preventer also can be used to shear the petroleum casing pipe of minor diameter, but be subjected to the restriction of drilling rod shear ram structure, can't shear larger-diameter petroleum casing pipe, need a kind of shear ram of special construction to shear large diameter petroleum casing pipe.
The utility model content
The purpose of this utility model is: a kind of sleeve pipe shear ram of preventer is provided, is installed in the preventer, can shear large diameter sleeve pipe, realize casing job safety.
The technical solution adopted in the utility model is: the sleeve pipe shear ram of preventer, mainly form by last shear ram and down cut flashboard, one end of last shear ram and down cut flashboard has the T-slot that usefulness is installed respectively, the other end of last shear ram and down cut flashboard embeds mutually, become cylinder after the other end of last shear ram and down cut flashboard embeds mutually, a rectangular channel is arranged at the cylinder lower plane with last lower plane.Last shearing lock can move along rectangular channel is parallel with the down cut flashboard.The rectangular channel major function is that flashboard rear mud returns in the well from groove in the flashboard opening procedure, reduces the resistance in the flashboard opening procedure.Last lower flashboard is located in the flashboard chamber of housing and is moved, and flashboard moves and the directionless relation of rectangular channel.It is characterized in that: going up shear ram built-in end top has upper knife body; Lower knife body is arranged at down cut flashboard built-in end bottom.The front end of upper knife body and lower knife body has the V-arrangement blade, and the angle between the plane of V-arrangement blade and the V-arrangement edge bevel is between 55～70 degree.On last shear ram built-in end top and down cut flashboard built-in end bottom a groove is arranged respectively, groove is the embedded groove of cutter hub.Groove has three walls, and three walls of groove are perpendicular to the cutter hub plane.Two relative walls of groove are parallel to each other, and the distance between two relative walls is identical with the width of cutter hub.
Two V-arrangement limit angles of the front end V-arrangement blade of described upper knife body and lower knife body have excessive circular arc between two V-arrangement limits between 80～120 degree.
The radius of the excessive circular arc between described two V-arrangement limits is between 70～120 millimeters.
The beneficial effects of the utility model: the sleeve pipe shear ram of the utility model preventer, be installed in the preventer, when taking place, blowout can shear large diameter sleeve pipe, realize casing job safety.This sleeve pipe shear ram is used for big latus rectum preventer and shears large diameter petroleum casing pipe, does not require the sealing well head after cutting off, can be by having the flashboard of sealing function to be used the realization closing well with other.
Description of drawings
Fig. 1 a is the sleeve pipe shear ram open mode structural representation (front shaft side figure) of preventer.
Fig. 1 b is the sleeve pipe shear ram closed condition structural representation (front shaft side figure) of preventer.
Fig. 2 a is the sleeve pipe shear ram open mode structural representation (reverse side shaft side figure) of preventer.
Fig. 2 b is the sleeve pipe shear ram closed condition structural representation (reverse side shaft side figure) of preventer.
Fig. 3 is that the sleeve pipe of the utility model preventer is sheared the flashboard structure generalized section.
Among the figure, 1. go up shear ram, 2. down cut flashboard, 3.T shape groove, 4. rectangular channel, 101. upper knife bodies, 201. lower knife bodies.
The specific embodiment
Embodiment 1: the sleeve pipe shear ram with a preventer is an example, and the utility model is described in further detail.
Consult Fig. 1 a.The sleeve pipe shear ram of preventer mainly is made up of last shear ram 1 and down cut flashboard 2.One end of last shear ram 1 and down cut flashboard 2 has the T-slot 3 that usefulness is installed respectively, the other end of last shear ram 1 and down cut flashboard 2 embeds mutually, become the cylinder with last lower plane after the other end of last shear ram 1 and down cut flashboard 2 embeds mutually, the distance of lower plane is 150 millimeters (thickness of cylinder) on the cylinder.A sunk rectangular channel 4 is longitudinally arranged at cylinder lower plane center.Last shear ram 1 can be along rectangular channel 4 parallel moving with down cut flashboard 2.
Consult Fig. 3.The plane of the V-arrangement blade of upper knife body 101 and lower knife body 201 and the angle between the V-arrangement edge bevel are 63 degree.On last shear ram 1 built-in end top and down cut flashboard 2 built-in end bottoms a groove is arranged respectively, groove is the cutter hub embedded groove.Groove has three walls, and three walls of groove are perpendicular to the cutter hub plane.Two relative walls of groove are parallel to each other, and the distance between two relative walls and the width of cutter hub are 478 millimeters.
The principle of closing and cut off sleeve pipe of the sleeve pipe shear ram of preventer:
The sleeve pipe shear ram is installed in the preventer.Consult Fig. 1 a.Can be 339.72 millimeters sleeve pipe by external diameter between the V-arrangement blade of last shear ram 1 and down cut flashboard 2.Consult Fig. 1 b.When flashboard cut out, the blowout preventer hydraulic oil cylinder promote to be gone up shear ram body 1 and down cut flashboard 2, simultaneously along rectangular channel 4 to the preventer central slide.V-arrangement blade squeezing bushing, sleeve pipe are extruded distortion and crackle occurs.Along with further closing flashboard, the upper knife body 101 of last shear ram body 1 enters in the groove of down cut flashboard 2, and the upper knife body 201 of down cut flashboard body 2 enters in the groove of shear ram 1.Sleeve pipe above the flashboard is squeezed in the space of upper knife body 101 and groove formation, and the sleeve pipe of flashboard below is squeezed in the space of lower knife body 201 and groove formation, and sleeve pipe is extruded to be out of shape and ruptures.Because upper knife body 101 is inserted in the groove, lower knife body 201 is inserted in the groove, links into an integrated entity after making the lower flashboard closure, has guaranteed the reliability of shearing.
Claims (3)
1. the sleeve pipe shear ram of a preventer, mainly form by last shear ram (1) and down cut flashboard (2), one end of last shear ram (1) and down cut flashboard (2) has the T-slot (3) that usefulness is installed respectively, the other end of last shear ram (1) and down cut flashboard (2) embeds mutually, after embedding mutually, the other end of last shear ram (1) and down cut flashboard (2) becomes cylinder with last lower plane, at the cylinder lower plane rectangular channel (4) is arranged, it is characterized in that: going up shear ram (1) built-in end top has upper knife body (101); Lower knife body (201) is arranged at down cut flashboard (2) built-in end bottom, the front end of upper knife body (101) and lower knife body (201) has the V-arrangement blade, angle between the plane of V-arrangement blade and the V-arrangement edge bevel is between 55～70 degree, on last shear ram (1) built-in end top and down cut flashboard (2) built-in end bottom a groove is arranged respectively, groove is the cutter hub embedded groove, groove has three walls, three walls of groove are perpendicular to the cutter hub plane, two relative walls of groove are parallel to each other, and the distance between two relative walls is identical with the width of cutter hub.
2. the sleeve pipe shear ram of preventer according to claim 1 is characterized in that: two V-arrangement limit angles of the front end V-arrangement blade of described upper knife body 101 and lower knife body 201 have excessive circular arc between two V-arrangement limits between 80～120 degree.
3. the sleeve pipe shear ram of preventer according to claim 1, it is characterized in that: the radius of the excessive circular arc between described two V-arrangement limits is between 70～120 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201669224U CN201474650U (en) | 2009-07-21 | 2009-07-21 | Sleeve pipe shearing flashboard of blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201669224U CN201474650U (en) | 2009-07-21 | 2009-07-21 | Sleeve pipe shearing flashboard of blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201474650U true CN201474650U (en) | 2010-05-19 |
Family
ID=42410898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201669224U Expired - Lifetime CN201474650U (en) | 2009-07-21 | 2009-07-21 | Sleeve pipe shearing flashboard of blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201474650U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102626803A (en) * | 2011-02-02 | 2012-08-08 | 海德里尔美国制造业有限责任公司 | Shear blade geometry and method |
| CN102985637A (en) * | 2010-05-28 | 2013-03-20 | 国民油井华高有限合伙公司 | Tubular severing system and method of using same |
| CN103174394A (en) * | 2011-12-20 | 2013-06-26 | 海德里尔美国制造业有限责任公司 | Ram bop shear blade process to enhance the toughness |
| CN107532463A (en) * | 2015-04-21 | 2018-01-02 | 阿克森压力产品股份有限公司 | Shearing block for preventer designs |
| CN107716773A (en) * | 2017-11-16 | 2018-02-23 | 无锡海特精密模具有限公司 | A kind of high quality fin rip cutting mechanism |
| CN115387732A (en) * | 2022-10-12 | 2022-11-25 | 中国石油大学(华东) | Seabed drilling device and seabed coiled tubing drilling system thereof |
-
2009
- 2009-07-21 CN CN2009201669224U patent/CN201474650U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102985637A (en) * | 2010-05-28 | 2013-03-20 | 国民油井华高有限合伙公司 | Tubular severing system and method of using same |
| CN102985637B (en) * | 2010-05-28 | 2015-11-25 | 国民油井华高有限合伙公司 | For cutting off the method for the pipe fitting of well |
| CN102626803A (en) * | 2011-02-02 | 2012-08-08 | 海德里尔美国制造业有限责任公司 | Shear blade geometry and method |
| CN102626803B (en) * | 2011-02-02 | 2016-07-06 | 海德里尔美国制造业有限责任公司 | Shear-blade geometric construction and method |
| CN103174394A (en) * | 2011-12-20 | 2013-06-26 | 海德里尔美国制造业有限责任公司 | Ram bop shear blade process to enhance the toughness |
| CN107532463A (en) * | 2015-04-21 | 2018-01-02 | 阿克森压力产品股份有限公司 | Shearing block for preventer designs |
| CN107532463B (en) * | 2015-04-21 | 2019-12-20 | 阿克森压力产品股份有限公司 | Shear block design for blowout preventer |
| CN107716773A (en) * | 2017-11-16 | 2018-02-23 | 无锡海特精密模具有限公司 | A kind of high quality fin rip cutting mechanism |
| CN115387732A (en) * | 2022-10-12 | 2022-11-25 | 中国石油大学(华东) | Seabed drilling device and seabed coiled tubing drilling system thereof |
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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: 20100519 |