CN201474651U - Drill stem cutting flashboard - Google Patents
Drill stem cutting flashboard Download PDFInfo
- Publication number
- CN201474651U CN201474651U CN2009201669239U CN200920166923U CN201474651U CN 201474651 U CN201474651 U CN 201474651U CN 2009201669239 U CN2009201669239 U CN 2009201669239U CN 200920166923 U CN200920166923 U CN 200920166923U CN 201474651 U CN201474651 U CN 201474651U
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- CN
- China
- Prior art keywords
- shear ram
- flashboard
- seal
- compressor arm
- cutter hub
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a drill stem cutting flashboard, which is applied to the well control device of oil well drilling and well repair. The flashboard mainly consists of an upper cutting flashboard, a top seal, a side seal, a lower cutting flashboard, a sealing compressing mechanism and a sealing body. The utility model is characterized in that the sealing compressing mechanism and the sealing are fixed between the lower plane of the V-shaped cutter body of the upper cutting flashboard and the upper plane of the straight cutter body of the lower cutting flashboard and are perpendicular to the V-shaped cutter body of the upper cutting flashboard. The sealing body is arranged in the groove of the lower plane of the upper cutting flashboard. The effect is that the drill stem cutting flashboard is arranged in a blowout preventer and can not only cut a drill stem but also seal the cutter plane between the upper cutting flashboard and the lower cutting flashboard, ensure the sealing reliability of the flashboard and realize safe well drilling.
Description
Technical field
The utility model relates to oil drilling, well workover technology field, and particularly the well control device of drilling well is the drilling rod shear ram on a kind of drilling well control device.
Background technology
In drilling well, well workover or the formation testing operation process, when the inner blowout preventer valve that blowout and drilling tool take place in the drilling tool was malfunctioning, well liquid can be by the ejection of drilling rod center.Use a kind of shear ram that can cut off drilling rod in the well, make well head totally-enclosed, prevent the ejection of well liquid.
At present, the shear knife body space influenced about conventional shear ram was subjected to, and was subjected to drilling tool material rank and ambient temperature effect in the well, was subjected to many-sided factor affecting such as drilling tool inner cable, can not shear the drilling tool inner cable sometimes; Cutter hub bad seals when cutting off drilling tool sometimes, can not sealed well in liquid or gas, bring hidden danger for drilling well control safety.
The utility model content
The purpose of this utility model is: a kind of drilling rod shear ram is provided, is installed in the preventer, can not only shear drilling rod, and shear and to go up that the cutter hub sealing is not damaged between shear ram and the down cut flashboard behind the drilling rod, can guarantee the flashboard sealing simultaneously reliably.Sealing reliability between shear ram and the down cut flashboard in the raising realizes drilling safety.
The technical solution adopted in the utility model is: the utility model drilling rod shear ram, mainly form by last shear ram, top sealing, side seal, down cut flashboard, sealing hold-down mechanism and seal.Last shear ram front end has the V-arrangement cutter hub, and there is rectangular recess at two ends, V-arrangement cutter hub below, and rectangular recess can be held the boss at down cut flashboard straight knife body two ends.Down cut flashboard front end has straight shape cutter hub, and there is boss straight shape cutter hub both sides.Be embedded with the top sealing on the top of last shear ram and down cut flashboard respectively, the top of shear ram and down cut flashboard can be sealed.Both sides at last shear ram and down cut flashboard have side seal respectively, and the side of shear ram and down cut flashboard can be sealed.It is characterized in that: be fixed with sealing hold-down mechanism and seal on the straight knife body of the V-arrangement cutter hub lower plane of last shear ram and down cut flashboard between the plane.The vertical V-arrangement cutter hub of going up shear ram of sealing hold-down mechanism with seal.Seal is in the groove of last shear ram lower plane.
The sealing hold-down mechanism is made up of compressor arm and locating piece.Compressor arm is a strip, and cross section is approximate rectangular.A chamfering of compressor arm is a circular arc.There is circular groove at the compressor arm two ends, and compressor arm two ends arc groove and locating piece are fixed.Locating piece has two, and locating piece is a tabular, and one side has cylindrical boss on the top of locating piece, and homonymy has half-cylindrical boss in the bottom of locating piece.The cylindrical boss on locating piece top is embedded in the both sides of the V-arrangement cutter hub of shear ram.Compressor arm is in the groove of last shear ram lower plane.The lower plane of the half-cylindrical boss in locating piece bottom and the V-arrangement cutter hub lower plane of last shear ram are in same plane.
The cross section of seal is trapezoidal, adopts the sulfuration of rubber and parallels to make.
Seal is parallel with compressor arm and compress.After seal and compressor arm compress.Angle of the rotation of compressor arm, promptly the compressor arm lower plane is outside the V-arrangement cutter hub lower plane of last shear ram.Instantly after the straight knife body of shear ram inserted and goes up shear ram, the straight knife body of down cut flashboard promoted the compressor arm rotation, and compressor arm rotation means of press seals body makes seal produce distortion, the gap in the sealing between shear ram and the down cut flashboard.
The installation of drilling rod shear ram and use: consult Fig. 1.In the groove of last shear ram body 1, put into seal 4.Consult Fig. 3.Place compressor arm 301 in seal 4 left sides, the both sides of compressor arm 301 are placement positioning piece 302 respectively, 1 liang of mother rib lateral rotundum of cylindrical boss and last shear ram on the locating piece 302 is cooperated, the half-cylindrical boss of locating piece 302 bottoms places the groove of compressor arm 301 both sides, by locating piece 302 compressor arm 301 and seal 4 is limited in the groove of shear ram 1.Groove blocks seal 4 can not come off it.
When flashboard cuts out, the boss of down cut flashboard 2 both sides contacts with the point of a knife of last shear ram 1 both sides, boss enters in the groove in the shear ram 1 then, boss and groove are matching relationship, reasonable supporting clearance can effectively prevent the up and down changing of the relative positions of upper and lower flashboard in closing closed procedure, can shear the cable in the drilling tool, can guarantee the gap of upper knife body sealing surface and lower knife body sealing surface again, realize positiver sealing.Close in the closed procedure at flashboard, the straight knife of down cut flashboard 2 and compressor arm 301 lower parallel even contact, compressor arm 301 is rotated in the groove of last shear ram 1 clockwise, push the seal 4 on right side simultaneously, when flashboard cuts out fully, compressor arm 301 all enters in the groove, and simultaneously seal 4 is squeezed and protrudes downwards and be close on the cutter hub sealing plane of down cut flashboard 2, realizes the sealing at cutter hub position.Under the co-extruded sealing of top sealing, side seal and seal 4, liquid or gas are realized safe well control in the salable well.
When opening flashboard, seal 4 pushes compressor arm 301 under the caoutchouc elasticity effect, compressor arm 301 rotates counterclockwise, and after groove and boss were adjacent to, compressor arm 301 left surfaces and groove right flank formed up big and down small trapezoid space and block seal 4 it can not come off.
The beneficial effects of the utility model: the utility model drilling rod shear ram, be installed in the preventer, can not only shear drilling rod, and shear and to go up between shear ram and the down cut flashboard cutter hub plane behind the drilling rod and can realize sealing, the while can guarantee that flashboard seals reliably.Sealing reliability between shear ram and the down cut flashboard in the raising realizes drilling safety.
Description of drawings
Fig. 1 is the structural representation of the utility model drilling rod shear ram closed condition.
Fig. 2 is the structural representation of the utility model drilling rod shear ram open mode.
Fig. 3 is the partial enlarged drawing of Fig. 2.
Fig. 4 is the structural representation of sealing hold-down mechanism 3.
Fig. 5 is compressor arm 301 structural representations of sealing hold-down mechanism 3.
Fig. 6 is locating piece 302 structural representations of sealing hold-down mechanism 3.
Among the figure, 1. go up shear ram, 2. down cut flashboard, 3. sealing hold-down mechanism, 4. seal, 301. compressor arms, 302. locating pieces.
The specific embodiment
Embodiment 1: with a drilling rod shear ram is example, and the utility model is described in further detail.
Consult Fig. 1.The utility model drilling rod shear ram is made up of last shear ram 1, top sealing, side seal, down cut flashboard 2, sealing hold-down mechanism 3 and seal 4.Same as the prior art is: going up shear ram 1 front end has the V-arrangement cutter hub, and there is rectangular recess at two ends, V-arrangement cutter hub below, and rectangular recess can be held the boss at down cut flashboard 2 straight knife body two ends.Down cut flashboard 2 front ends have straight shape cutter hub, and there is boss straight shape cutter hub both sides.Be embedded with the top sealing on the top of last shear ram 1 and down cut flashboard 2 respectively, the top of shear ram 1 and down cut flashboard 2 can be sealed.Both sides at last shear ram 1 and down cut flashboard 2 have side seal respectively, and the side of shear ram 1 and down cut flashboard 2 can be sealed.
Be fixed with a sealing hold-down mechanism 3 and a seal 4 between the plane on the straight knife body of the V-arrangement cutter hub lower plane of last shear ram 1 and down cut flashboard 2.The cross section of seal 4 is trapezoidal, 390 millimeters of length, and 25 millimeters of width adopt elastomeric material to make.Sealing hold-down mechanism 3 and the seal 4 vertical V-arrangement cutter hubs (promptly horizontal) of going up shear ram 1.Seal 4 is in the trapezoidal groove of last shear ram 1 lower plane.In 4 two hypotenuses of trapezoidal seal, vulcanized the arc parallels 401 isometric with seal 4.Some through holes are arranged in the middle of the parallels 401, and the through hole assurance parallels and the vulcanization of rubber are firm.Parallels 401 can make rubber two ends in pressurized process consistent with intermediate deformation, and only can flow downwards, sealing cutter hub plane.
Consult Fig. 3.Sealing hold-down mechanism 3 is made up of compressor arm 301 and locating piece 302.Compressor arm 301 is a strip, and cross section is approximate rectangular, 390 millimeters of length, 22 millimeters of width, 20 millimeters of height.A chamfering of compressor arm 301 is a circular arc, when compressor arm 301 rotates, reduces spatial constraints.There is circular groove at compressor arm 301 two ends, and compressor arm 301 two ends arc grooves and locating piece 302 install and fix.Locating piece 302 has two, and locating piece 302 is a tabular, 46 millimeters of length, 24 millimeters of width, 15 millimeters of thickness.A side has a cylindrical boss on the top of locating piece 302, at the bottom of locating piece 302 homonymy a half-cylindrical boss is arranged.The cylindrical boss on locating piece 302 tops is embedded in the circular hole of both sides of V-arrangement cutter hub of shear ram 1.Compressor arm 301 is in the groove of last shear ram 1 lower plane.The lower plane of the half-cylindrical boss in locating piece 302 bottoms and the V-arrangement cutter hub lower plane of last shear ram 1 are in same plane.
Claims (4)
1. drilling rod shear ram, mainly by last shear ram (1), the top sealing, side seal, down cut flashboard (2), sealing hold-down mechanism (3) and seal (4) are formed, last shear ram (1) front end has the V-arrangement cutter hub, there is rectangular recess at two ends, V-arrangement cutter hub below, rectangular recess can be held the boss at down cut flashboard (2) straight knife body two ends, down cut flashboard (2) front end has straight shape cutter hub, there is boss straight shape cutter hub both sides, be embedded with the top sealing respectively on the top of last shear ram (1) and down cut flashboard (2), both sides at last shear ram (1) and down cut flashboard (2) have side seal respectively, it is characterized in that: be fixed with sealing hold-down mechanism (3) and seal (4) on the straight knife body of the V-arrangement cutter hub lower plane of last shear ram (1) and down cut flashboard (2) between the plane, the vertical V-arrangement cutter hub of going up shear ram (1) with seal (4) of sealing hold-down mechanism (3), seal (4) is in the groove of last shear ram (1) lower plane.
2. drilling rod shear ram according to claim 1, it is characterized in that: sealing hold-down mechanism (3) is made up of compressor arm (301) and locating piece (302), compressor arm (301) is a strip, cross section is approximate rectangular, a chamfering of compressor arm (301) is a circular arc, there is circular groove at compressor arm (301) two ends, compressor arm (301) two ends arc groove and locating piece (302) are fixing, locating piece (302) has two, locating piece (302) is a tabular, a side has cylindrical boss on the top of locating piece (302), bottom homonymy at locating piece (302) has half-cylindrical boss, the cylindrical boss on locating piece (302) top is embedded in the both sides of shear ram (1) V-arrangement cutter hub, compressor arm (301) is in the groove of last shear ram (1) lower plane, and the lower plane of the half-cylindrical boss in locating piece (302) bottom and the V-arrangement cutter hub lower plane of last shear ram (1) are in same plane.
3. drilling rod shear ram according to claim 1 and 2 is characterized in that: the cross section of seal (4) is trapezoidal.
4. drilling rod shear ram according to claim 1 and 2 is characterized in that: seal (4) is parallel with compressor arm (301) and compress, and compressor arm (301) lower plane is outside the V-arrangement cutter hub lower plane of last shear ram (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201669239U CN201474651U (en) | 2009-07-21 | 2009-07-21 | Drill stem cutting flashboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201669239U CN201474651U (en) | 2009-07-21 | 2009-07-21 | Drill stem cutting flashboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201474651U true CN201474651U (en) | 2010-05-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201669239U Expired - Lifetime CN201474651U (en) | 2009-07-21 | 2009-07-21 | Drill stem cutting flashboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201474651U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865049A (en) * | 2011-06-14 | 2013-01-09 | 海德里尔美国制造业有限责任公司 | Pipe guide arms for blind shear rams |
| CN103184847A (en) * | 2011-12-28 | 2013-07-03 | 海德里尔美国制造业有限责任公司 | Shear blade and method of attachment to shear rams |
| CN104790899A (en) * | 2015-05-06 | 2015-07-22 | 河北华北石油荣盛机械制造有限公司 | Anti-hydrothion shear ram used for blowout preventer |
| CN105051317A (en) * | 2012-10-23 | 2015-11-11 | 越洋创新实验室有限公司 | Induction shearing of drilling pipe |
| CN105822250A (en) * | 2015-01-08 | 2016-08-03 | 中国石油天然气股份有限公司 | Cutter ram blowout preventer |
| CN110462162A (en) * | 2017-03-30 | 2019-11-15 | 通用电气公司 | Spraying-preventing system including sealing shear ram entirely |
| WO2022246403A1 (en) * | 2021-05-19 | 2022-11-24 | Baker Hughes Oilfield Operations Llc | Integrated composite seals for ram body |
| CN117588181A (en) * | 2024-01-18 | 2024-02-23 | 河北华北石油荣盛机械制造有限公司 | Sealing structure suitable for shearing flashboard of blowout preventer |
-
2009
- 2009-07-21 CN CN2009201669239U patent/CN201474651U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865049A (en) * | 2011-06-14 | 2013-01-09 | 海德里尔美国制造业有限责任公司 | Pipe guide arms for blind shear rams |
| CN102865049B (en) * | 2011-06-14 | 2016-09-07 | 海德里尔美国制造业有限责任公司 | Pipeline lead arm for totally-enclosed shear ram |
| CN103184847A (en) * | 2011-12-28 | 2013-07-03 | 海德里尔美国制造业有限责任公司 | Shear blade and method of attachment to shear rams |
| CN103184847B (en) * | 2011-12-28 | 2017-03-01 | 海德里尔美国制造业有限责任公司 | Shear-blade and the method being attached on shear ram |
| CN105051317A (en) * | 2012-10-23 | 2015-11-11 | 越洋创新实验室有限公司 | Induction shearing of drilling pipe |
| CN105822250A (en) * | 2015-01-08 | 2016-08-03 | 中国石油天然气股份有限公司 | Cutter ram blowout preventer |
| CN104790899A (en) * | 2015-05-06 | 2015-07-22 | 河北华北石油荣盛机械制造有限公司 | Anti-hydrothion shear ram used for blowout preventer |
| CN110462162A (en) * | 2017-03-30 | 2019-11-15 | 通用电气公司 | Spraying-preventing system including sealing shear ram entirely |
| WO2022246403A1 (en) * | 2021-05-19 | 2022-11-24 | Baker Hughes Oilfield Operations Llc | Integrated composite seals for ram body |
| CN117588181A (en) * | 2024-01-18 | 2024-02-23 | 河北华北石油荣盛机械制造有限公司 | Sealing structure suitable for shearing flashboard of blowout preventer |
| CN117588181B (en) * | 2024-01-18 | 2024-03-22 | 河北华北石油荣盛机械制造有限公司 | Sealing structure suitable for shearing flashboard of blowout preventer |
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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: 20100519 |
|
| CX01 | Expiry of patent term |