CN110094176A - Oil drilling mud saver valve - Google Patents
Oil drilling mud saver valve Download PDFInfo
- Publication number
- CN110094176A CN110094176A CN201810086169.1A CN201810086169A CN110094176A CN 110094176 A CN110094176 A CN 110094176A CN 201810086169 A CN201810086169 A CN 201810086169A CN 110094176 A CN110094176 A CN 110094176A
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- CN
- China
- Prior art keywords
- valve
- font
- piston
- spool
- periphery
- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 32
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 20
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 20
- 239000002002 slurry Substances 0.000 claims description 19
- 239000003921 oil Substances 0.000 claims description 15
- 125000006850 spacer group Chemical group 0.000 claims description 11
- -1 polytetrafluoroethylene Polymers 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- 230000003628 erosive effect Effects 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 6
- 229920002530 polyetherether ketone Polymers 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 239000010687 lubricating oil Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 229910000599 Cr alloy Inorganic materials 0.000 claims description 2
- 239000000788 chromium alloy Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- 229910052573 porcelain Inorganic materials 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 238000004026 adhesive bonding Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/10—Valve arrangements in drilling-fluid circulation systems
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
Oil drilling mud saver valve, shell is circular tube shaped, integral core is support on second step of inner hole, valve core is the tubbiness of lower ending opening, successively there are four steps for processing from bottom to top in bucket, fitting is installed with valve seat on the upward bucket wall of first step, when turn on pump, mud enters upper part of the housing inner hole from top drilling tool, enter " ship " font deceleration slot through three " twenty " font runners, uniform and stable mud stream is formed to enter in valve core bucket, spool is set to rise to " twenty " font runner and bucket inner opening top with piston, spool and valve base chamber form soft to hard sealing pair, increase sealing reliability, by supporting pin, support base, brute spring support valve seat simplifies processing and mounting process, reduce product cost.
Description
Technical field
The present invention relates to petroleum industry well drilling blowout preventions to splash tool --- mud saver valve technology field, in particular to petroleum drilling
Well mud saver valve.
Background technique
In petroleum, natural gas and other drilling wells and workover treatment, to prevent when making up a joint, kelly bar and its upper tube
Mud in column is sprayed on rig floor, is polluted environment, is influenced operation, cause to waste, and security risk is increased, and in kelly bar or side
Plash proof valve is installed in plug valve lower part under drilling rod, and structure is complicated mostly for plash proof valve used at present, and craftsmanship is poor, and valve core structure does not conform to
Reason, the fast erosion of mud speed rate is serious, and processing and use cost are high, and to hard sealing structure, sealing performance can not under low pressure firmly
It leans on, resistance big influence normal drilling operability when meeting card, high failure rate, reliability are low, service life is short, threaten related personnel and set
The safety applied.
Summary of the invention
In order to solve the above problems, the present invention provides a kind of oil drilling mud saver valves, by shell, admittedly
Determine screw, slurry channel and by valve core, spring, valve seat, brute spring, piston, " Jie " font stud, " twenty " font runner,
Fixing groove, " ship " shape deceleration slot, spacer pin, spool, supporting pin, the integral core of support base composition form, the purpose of the present invention
It is that a kind of oil drilling mud saver valve is provided for oil drilling.
The present invention is achieved by the following technical solutions.
Oil drilling mud saver valve includes shell, valve core, spring, valve seat, brute spring, piston, " Jie " font
Stud, " twenty " font runner, fixing groove, " ship " shape deceleration slot, fixing screws, spacer pin, spool, supporting pin, support base, mud
Channel, other accessories in addition to shell, fixing screws form integral core, and wherein shell is circular tube shaped, second step of inner hole
On support integral core, valve core is the tubbiness of lower ending opening, and successively processing is there are four step from bottom to top in bucket, first
There is twice annular groove on the upward bucket wall of step, there is sealing in slot, fitting is installed with valve seat, and bucket bottom supports spring, outer cone
There are three " Jie " font stud and three and " twenty " font runner for communicating in bucket, outer circle lower plane step lower parts below the step of face
Periphery on there are three 120 ° of uniformly distributed holes, the support that is tightly filled in hole in first half insertion support base outer circle annular groove
Pin, the upper surface of support base support brute spring, and lubricating oil, lower spring end branch are full of in the annular elongated slot on outside piston face
It supports flat blind via bottom on piston upper surface, when termination of pumping, keeps the lower part outer conical surface for the spool for being fixed on piston base tight
Close be fitted on valve seat internal conical surface forms sealing pair, the sealing pair be it is soft to hard sealing pair, close slurry channel, when turn on pump,
Spool rises to valve core third step or more with piston, opens slurry channel, and when piston and valve body are stuck, mud is pushed
Valve seat compresses brute spring downlink, while carrying out part erosion to spool, and the front end of spacer pin is located at outside piston face and gets out of a predicament or an embarrassing situation
Hereinafter, the force value of spring is consistently less than the pretightning force of brute spring.
The inner hole of shell, three " twenty " font runners, " ship " shape deceleration slot, spool, valve seat inner hole, support base inner hole and valve
Core forms slurry channel, and spool is formed by polytetrafluoroethylene (PTFE), polyether-ether-ketone or by polytetrafluoroethylene (PTFE), molybdenum disulfide, copper powder etc.
Composite processing form or the metal core by machined screw thread and polytetrafluoroethylene (PTFE), polyether-ether-ketone, heat resistant rubber or by gathering
The composite material combination of the compositions such as tetrafluoroethene, molybdenum disulfide, copper powder is integrated, and the material of valve seat is hard alloy, ceramics, height
Evanohm or other hard high-wearing feature materials.
Valve core outer circle upper end is circular conical surface, has a cone step on periphery, a lower conical surface is arranged at periphery lower part
Step and a lower plane step have twice annular groove on the periphery of lower cone step lower part, have sealing in slot, with shell
Inner hole gluing, sealings more than two steps has " ship " shape deceleration slot together on the upward bucket wall of second step of valve core,
Lower trough rim extends outwardly connection " twenty " font runner, and " twenty " font runner is interspersed with " Jie " font stud, in " Jie " font
On stud, the third step in bucket is held hereinafter, applying high temperature more than " ship " shape deceleration slot there are three 120 ° of uniformly distributed holes, in hole
Opening in the fixed spacer pin of glue, " twenty " font runner and bucket is located at third step hereinafter, third step is processed into 15
~20 ° of circular conical surface.
One step arranged at outside piston top, there is twice annular groove on the step and periphery between getting out of a predicament or an embarrassing situation, in slot
There is sealing, forms sliding sealing pair with the 4th step of valve core inner hole below, have one of annular long between twice annular groove
Slot more than first step is threaded there are two step on spool periphery, and applying anaerobic adhesive, to screw in piston base flat blind
In the threaded hole at hole center, the periphery between two steps and two steps applies high temperature retaining rubber with piston space and is bonded as one.
Shell both ends are threaded, and there are two step, first steps to be processed into 15~20 ° of circular conical surface for inner hole, outside
There is a radial stepped hole on disc, is threaded in hole, applies the fixed fixing screws of anaerobic adhesive, the roundlet of fixing screws right part
Blind hole on column insertion " Jie " font stud periphery --- in fixing groove, there is annular groove on the big cylindrical surface of left part, have in slot close
It seals, is machined with interior hexagonal hole on left side.
Brute spring is that the disk spring of one group of pairing combination or rectangular section cylindrical screw cluster spring, brute spring make
The upper surface of valve seat is fitted tightly on second step of valve core.
The invention has the following advantages that by the inner hole of shell, three " twenty " font runners, " ship " shape deceleration slot, spool, valve
Seat inner hole, support base inner hole and valve core form slurry channel, reduce in the annular elongated slot on outside piston face full of lubricating oil
The risk of piston clamping stagnation, when turn on pump, mud enters upper part of the housing inner hole from top drilling tool, enters through three " twenty " font runners
" ship " shape deceleration slot, forms uniform and stable mud stream and enters in valve core bucket, and spool is made to rise to " twenty " font stream with piston
Third step top more than road and bucket inner opening, is effectively protected the safety of spool, avoids mud to valve core, valve
The uneven erosion of core and valve seat damages, and extends the service life of valve, and spool and valve base chamber form soft to hard sealing pair, increase
Sealing reliability, increases the stable system performance of oil drilling mud saver valve.By supporting pin, support base, strength
Spring supporting valve seat simplifies processing and mounting process, reduces product cost.
Figure of description
Fig. 1: oil drilling is illustrated with mud saver valve
Detailed description of the invention: 1, shell 2, valve core 2-1, " Jie " font stud 2-2, " twenty " font runner 2-3, fixation
Slot 2-4, " ship " shape deceleration slot 3, spring 4, fixing screws 5, spacer pin 6, spool 7, valve seat 8, supporting pin
9, support base 10, brute spring 11, piston 12, slurry channel.
Specific embodiment
Now in conjunction with Figure of description Fig. 1, the present invention will be further described.
Embodiment 1:
Oil drilling mud saver valve includes shell 1, valve core 2, spring 3, valve seat 7, brute spring 10, piston 11, " Jie "
Font stud 2-1, " twenty " font runner 2-2, fixing groove 2-3, " ship " shape deceleration slot 2-4, fixing screws 4, spacer pin 5, spool
6, supporting pin 8, support base 9, slurry channel 12, other accessories in addition to shell 1, fixing screws 4 form integral core, wherein shell
Body 1 is circular tube shaped, supports integral core on second step of inner hole, and valve core 2 is the tubbiness of lower ending opening, in bucket from it is lower to
On successively processing have twice annular groove on the upward bucket wall of first step, have sealing in slot, fitting is installed with there are four step
Valve seat 7, bucket bottom support spring 3, below outer conical surface step there are three " Jie " font stud 2-1 and three with communicated in bucket
" twenty " font runner 2-2 is tightly filled with first half in hole there are three 120 ° of uniformly distributed holes on the periphery of outer circle lower plane step lower part
Supporting pin 8 in 9 outer circle annular groove of partial insertion support base, the upper surface of support base 9 support brute spring 10, outside piston 11
Lubricating oil is full of in annular elongated slot on disc, 3 lower end of spring is supported on the flat blind via bottom on 11 upper surface of piston, termination of pumping
When, it is fitted tightly over the lower part outer conical surface for the spool 6 for being fixed on 11 bottom of piston on 7 internal conical surface of valve seat and forms sealing
Pair, the sealing pair be it is soft to hard sealing pair, close slurry channel 12, when turn on pump, spool 6 rises to valve core 2 the with piston 11
More than three steps, slurry channel 12 is opened, when piston 11 and valve body 2 are stuck, mud pushes valve seat 7 to compress brute spring 10
Downlink, while part erosion is carried out to spool 6, the front end of spacer pin 5 is located at 11 periphery of piston and gets out of a predicament or an embarrassing situation hereinafter, spring 3
Force value is consistently less than the pretightning force of brute spring 10.
The inner hole of shell 1, three " twenty " font runner 2-2, " ship " shape deceleration slot 2-4, spool 6,7 inner hole of valve seat, support
9 inner holes of seat and valve core 2 form slurry channel 12, and spool 6 is monolithic construction, are process by polytetrafluoroethylene (PTFE), valve seat 7
Material is hard alloy.
2 outer circle upper end of valve core is circular conical surface, has a cone step on periphery, a lower conical surface is arranged at periphery lower part
Step and a lower plane step have twice annular groove on the periphery of lower cone step lower part, have sealing in slot, with shell 1
Inner hole gluing, sealing more than second step has " ship " shape deceleration slot together on the upward bucket wall of 2 second steps of valve core
2-4, lower trough rim extend outwardly connection " twenty " font runner 2-2, and " twenty " font runner 2-2 interlocks with " Jie " font stud 2-1
Distribution, on " Jie " font stud 2-1, the third step in bucket is hereinafter, 120 ° there are three " ship " shape deceleration slot 2-4 or more
Uniformly distributed hole applies the fixed spacer pin 5 of high temperature retaining rubber in hole, and it is a that the opening in " twenty " font runner 2-2 and bucket is located at third
Step is hereinafter, third step is processed into 15~20 ° of circular conical surface.
One step arranged at 11 outer circle top of piston, has twice annular groove, slot on the step and periphery between getting out of a predicament or an embarrassing situation
Inside there is sealing, forms sliding sealing pair with the 4th step of valve core 2 inner hole below, there is one of annular between twice annular groove
Elongated slot more than first step is threaded there are two step on 6 periphery of spool, applies anaerobic adhesive and screw in 11 bottom of piston
High temperature, which is applied, in the threaded hole at flat blind hole center, between the periphery and piston 11 between two steps and two steps holds gluing knot
It is integrated.
1 both ends of shell are threaded, and there are two step, first steps to be processed into 15~20 ° of circular conical surface for inner hole, outside
Have a radial stepped hole on disc, be threaded in hole, apply the fixed fixing screws 4 of anaerobic adhesive, 4 right part of fixing screws it is small
Cylinder be inserted into " Jie " font stud 2-1 periphery on blind hole --- in fixing groove 2-3, left part has annular groove on big cylindrical surface,
There is sealing in slot, interior hexagonal hole is machined on left side.
Brute spring 10 is the disk spring of one group of pairing combination, and brute spring 10 fits closely the upper surface of valve seat 7
On second step of valve core 2.
Embodiment 2:
Unlike a kind of example above, brute spring 10 is one group of rectangular section cylindrical screw cluster spring.
Spool 6 is monolithic construction, is process by polyether-ether-ketone.
The material of valve seat 7 is ceramics.
Embodiment 3:
Unlike both above example, spool 6 is monolithic construction, is made of polytetrafluoroethylene (PTFE), molybdenum disulfide, copper powder etc.
Composite processing form.
The material of valve seat 7 is high-chromium alloy.
Embodiment 4:
Unlike three kinds of examples above, spool 6 is fabricated structure, by the metal core and polytetrafluoroethylene (PTFE) that machined screw thread
It is combined into one.
Embodiment 5:
Unlike four kinds of examples above, spool 6 is fabricated structure, by the metal core and polyether-ether-ketone group that machined screw thread
It is integrated.
Embodiment 6:
Unlike five kinds of examples above, spool 6 is fabricated structure, by the metal core and heat resistant rubber group that machined screw thread
It is integrated.
Embodiment 7:
Unlike six kinds of examples above, spool 6 is fabricated structure, by machined the metal core of screw thread and by polytetrafluoroethyl-ne
The composite material combination of the compositions such as alkene, molybdenum disulfide, copper powder is integrated.
Oil drilling is accessed into drill string with mud saver valve, opens slush pump, mud enters 1 top of shell from top drilling tool
Inner hole enters " ship " shape deceleration slot 2-4 through three " twenty " font runner 2-2, forms uniform and stable mud stream and enter valve core 2
It in bucket, pushes that getting out of a predicament or an embarrassing situation on 11 periphery of piston overcomes the pretightning force of spring 3 and compressed spring 3 moves up, makes to be fixed on
Spool 6 on piston 11 is detached from valve seat 7 and is moved upward on the third step of " twenty " font runner 2-2 and bucket inner opening or more
Portion, mud pressure acts also on spool 6 simultaneously after spool 6 is detached from valve seat 7, accelerates the speed for opening slurry channel 12, mud
Slurry smoothly flows into lower drilling tool.
Slush pump is closed, mud reduces the active force of piston, and spring 3 pushes 11 downlink of piston, spool 6 also downlink and valve
7 contact sealing of seat, closes slurry channel 12, can relievedly dismount drilling tool, will not generate mud splash.
When piston 11 and valve body 2 are stuck, open slush pump, spool 6 can not uplink, with the increasing of mud pressure
Greatly, mud pushes valve seat 7 to compress 10 downlink of brute spring, opens slurry channel 12, mud pressure is same after valve seat 7 is detached from spool 6
When act also on spool 6, push the power of piston 11 to increase, make 11 unfreezing of piston, brute spring 10 resets valve seat 7, splashproof
Valve restores normal operating conditions.
When piston 11 and valve body 2 are stuck, slush pump is opened, spool 6 is in " twenty " font runner 2-2 and 2 barrels of valve body
Aperture position, slurry channel 12 is narrow, and resistance is big, carries out part erosion to spool 6 softer in hard sealing pair to soft, restores mud
Unimpeded state is starched, does not influence normally to creep into, when termination of pumping removes plash proof valve, replaces integral core, convenient and efficient.
By facilitating public's the understanding of the present invention to the various embodiments described above, protection scope of the present invention is not limited to
The above various embodiments, each component feature of any couple of present invention or overall structure form rather than the change of substantive content is all considered as this hair
Bright technical solution.
Claims (6)
1. oil drilling mud saver valve include shell (1), valve core (2), spring (3), valve seat (7), brute spring (10),
Piston (11), it is characterized in that also added with " Jie " font stud (2-1), " twenty " font runner (2-2), fixing groove (2-3), " ship " shape
Deceleration slot (2-4), fixing screws (4), spacer pin (5), spool (6), supporting pin (8), support base (9), slurry channel (12), are removed
Other accessories of shell (1), fixing screws (4) outside form integral core, and wherein shell (1) is circular tube shaped, second platform of inner hole
Support integral core on rank, valve core (2) is the tubbiness of lower ending opening, it is successively processed from bottom to top in bucket there are four step,
More than first step there is twice annular groove, there is sealing in slot, fitting is installed with valve seat (7), and bucket bottom supports spring (3), outside
There are three " Jie " font stud (2-1) and three and " twenty " the font runner (2-2) that communicates in bucket, outer circles below circular conical surface step
There are three 120 ° of uniformly distributed holes on the periphery of lower plane step lower part, first half insertion support base (9) is tightly filled in hole outside
Supporting pin (8) in annular groove, the upper surface of support base (9) support brute spring (10), on piston (11) periphery
It is full of lubricating oil in annular elongated slot, spring (3) lower end is supported on the flat blind via bottom on piston (11) upper surface, when termination of pumping,
Make the lower part outer conical surface for the spool (6) for being fixed on piston (11) bottom be fitted tightly on valve seat (7) internal conical surface formed it is close
Envelope is secondary, the sealing pair be it is soft hard sealing pair is closed slurry channel (12), when turn on pump, spool (6) rises to valve with piston (11)
It more than core (2) third step, opens slurry channel (12), when piston (11) and valve body (2) are stuck, mud pushes valve seat
(7) brute spring (10) downlink is compressed, while part erosion is carried out to spool (6), the front end of spacer pin (5) is located at piston (11)
Periphery is got out of a predicament or an embarrassing situation hereinafter, the force value of spring (3) is consistently less than the pretightning force of brute spring (10).
2. oil drilling according to claim 1 mud saver valve, it is characterized in that the inner hole of shell (1), three " twenty "
Font runner (2-2), " ship " shape deceleration slot (2-4), spool (6), valve seat (7) inner hole, support base (9) inner hole and valve core (2)
It forms slurry channel (12), spool (6) is by polytetrafluoroethylene (PTFE), polyether-ether-ketone or by groups such as polytetrafluoroethylene (PTFE), molybdenum disulfide, copper powders
At composite processing form or the metal core by machined screw thread and polytetrafluoroethylene (PTFE), polyether-ether-ketone, heat resistant rubber or by
The composite material combination of the compositions such as polytetrafluoroethylene (PTFE), molybdenum disulfide, copper powder is integrated, and the material of valve seat (7) is hard alloy, pottery
Porcelain, high-chromium alloy or other hard high-wearing feature materials.
3. oil drilling according to claim 1 mud saver valve, it is characterized in that valve core (2) outer circle upper end is circular cone
There is a cone step in face on periphery, and a lower cone step and a lower plane step, lower conical surface platform are arranged at periphery lower part
There is twice annular groove on the periphery of rank lower part, have sealing in slot, is bonded with inner hole more than (1) second step of shell close
Envelope, there is " ship " shape deceleration slot (2-4) together on the upward bucket wall of (2) second steps of valve core, and lower trough rim extends outwardly company
Logical " twenty " font runner (2-2), " twenty " font runner (2-2) is interspersed with " Jie " font stud (2-1), in " Jie " font
On stud (2-1), the third step in bucket is hereinafter, more than " ship " shape deceleration slot (2-4) there are three 120 ° of uniformly distributed holes, in hole
Apply the fixed spacer pin of high temperature retaining rubber (5), the opening in " twenty " font runner (2-2) and bucket be located at third step hereinafter,
Third step is processed into 15~20 ° of circular conical surface.
4. oil drilling according to claim 1 mud saver valve, it is characterized in that piston (11) outer circle top has one
There is twice annular groove on step, the step and periphery between getting out of a predicament or an embarrassing situation, has sealing in slot, with the 4th platform of valve core (2)
Rank inner hole below forms sliding sealing pair, there is one of annular elongated slot between twice annular groove, on spool (6) periphery there are two
Step more than first step is threaded, and is applied anaerobic adhesive and is screwed in the threaded hole at the flat blind hole center in piston (11) bottom,
High temperature retaining rubber is applied between periphery between two steps and two steps and piston (11) to be bonded as one.
5. oil drilling according to claim 1 mud saver valve, it is characterized in that shell (1) both ends are threaded,
There are two step, first steps to be processed into 15~20 ° of circular conical surface for inner hole, has a radial stepped hole on periphery, adds in hole
Work has screw thread, applies the fixed fixing screws of anaerobic adhesive (4), and the small column of fixing screws (4) right part is inserted into " Jie " font stud (2-
1) in the blind hole on periphery --- fixing groove (2-3), there is annular groove on the big cylindrical surface of left part, there is sealing in slot, on left side
It is machined with interior hexagonal hole.
6. oil drilling according to claim 1 mud saver valve, it is characterized in that brute spring (10) is one group of pairing
Combined disk spring or rectangular section cylindrical screw cluster spring, brute spring (10) paste the upper surface of valve seat (7) closely
It closes on second step of valve core (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810086169.1A CN110094176A (en) | 2018-01-30 | 2018-01-30 | Oil drilling mud saver valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810086169.1A CN110094176A (en) | 2018-01-30 | 2018-01-30 | Oil drilling mud saver valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110094176A true CN110094176A (en) | 2019-08-06 |
Family
ID=67442713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810086169.1A Pending CN110094176A (en) | 2018-01-30 | 2018-01-30 | Oil drilling mud saver valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110094176A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114382429A (en) * | 2022-03-24 | 2022-04-22 | 东营市创元石油机械制造有限公司 | Mud splashproof valve for oil field well drilling |
| CN115106217A (en) * | 2022-07-28 | 2022-09-27 | 广东车海洋环保科技有限公司 | Special spray gun of self-service carwash intelligence response |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114382429A (en) * | 2022-03-24 | 2022-04-22 | 东营市创元石油机械制造有限公司 | Mud splashproof valve for oil field well drilling |
| CN114382429B (en) * | 2022-03-24 | 2022-05-24 | 东营市创元石油机械制造有限公司 | Mud splashproof valve for oil field well drilling |
| CN115106217A (en) * | 2022-07-28 | 2022-09-27 | 广东车海洋环保科技有限公司 | Special spray gun of self-service carwash intelligence response |
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