CN206860986U - Oil drilling oiling float valve - Google Patents
Oil drilling oiling float valve Download PDFInfo
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- CN206860986U CN206860986U CN201720640735.XU CN201720640735U CN206860986U CN 206860986 U CN206860986 U CN 206860986U CN 201720640735 U CN201720640735 U CN 201720640735U CN 206860986 U CN206860986 U CN 206860986U
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Abstract
Oil drilling oiling float valve, oiling float valve housing is a tubular, both ends are threaded, float valve core body is provided with floating oil pocket with connection valve inner room, high temperature grease or Hmp grease are filled inside it, be provided with slurry channel riffler and dual-seal it is secondary and together with sealing pair protection step, float valve necking down body is process by hard high-wearing feature material, it is simple in construction, intensity is high, have a safety feature, reliability is high, anti-erosion property is strong, service life is grown, it is easy to operate, O＆M cost is low, application of the present utility model, greatly reduce drilling risk and production cost.
Description
Technical field
The present invention relates to jet-preventing tool in petroleum industry drilling well --- drilling tool float valve technical field, more particularly to oil drilling
With oiling float valve.
Background technology
In oil, natural gas and other drilling wells and workover treatment, to prevent when making up a joint or making a trip, in annular space
Mud is returned in drill string and is sprayed onto on rig floor, while in order to prevent bottoms stream enters drilling tool in the presence of ground bottom pressure from sending out
The situation of raw overflow, well kick or blowout occurs, and connects a drilling tool float valve in drill string bottom.
Conventional drilling tool float valve has an arrow formula drilling tool float valve and board-like drilling tool float valve, and mud pressure promotes arrow formula valve element during turn on pump
Move down or slurry channel is opened in valve plate upset, arrow formula valve element and valve plate are answered in the presence of spring force and strata pressure during termination of pumping
Position, slurry channel is closed,
Prevent mud from flowing back, prevent it from entering drill string, play the purpose of interior blowout prevention.
The more general most unreasonable structure of drilling tool float valve just is used at present, and the direct erosion sealing surface of mud, spring be not anti-
It is unlubricated in shield, work, usually because sealing surface erosion, spring are damaged, valve element is caused float valve to fail situations such as card, failure
Rate is high, reliability is low, service life is short, consumption is serious, efficiency is low, there is great potential safety hazard, makes at drillng operation
Among great risk, the safety of serious threat related personnel and facility, it is impossible to meet increasingly severe underground working demand.
Such case seriously governs the survival and development in oil field.
The content of the invention
In order to solve the problem present on, the invention provides a kind of oil drilling oiling float valve, oiling float valve shell
Body is a tubular, and both ends are threaded, and float valve core body and connection valve inner room are provided with floating oil pocket, and it is gentle to fill height inside it
Lubricating oil or Hmp grease, be provided with slurry channel riffler and dual-seal it is secondary and together with sealing pair protection step, also set
Limited location platform and pillar are protected to back-moving spring, and float valve necking down body is process by hard high-wearing feature material, structure
Simply, intensity is high, have a safety feature, reliability is high, anti-erosion property is strong, service life length, easy to operate, O＆M into
This is low, and the purpose of the present invention is to provide a kind of oil drilling oiling float valve for oil drilling.
The present invention is achieved by the following technical solutions.
Oil drilling with oiling float valve include oiling float valve housing, buffering rubber ring, connection valve pocket, limiting stand, back-moving spring,
Float valve core body, floating oil pocket, oiling passage, oily stifled, seal plug, current by pass, fixed seat, diffusion admittance, mainstream channel, deceleration
Cavity volume, pin, riffler, glue groove, float valve necking down body, casing, float valve core body are a circular tube shaped, and three are machined with its periphery
Annular groove, wherein upper and lower twice annular groove is built with sealing ring, intermediate annular groove and the inwall for being connected valve pocket and upper and lower twice
Sealing ring, oiling passage, oil are stifled and its sealing ring between float valve core body forms floating oil pocket, fill high temperature grease inside it
Or Hmp grease, the cylindrical bottom of float valve core body are machined with a step, support below step by back-moving spring, top endoporus
Be machined with two steps, first step surface be machined between top surface together with inverted trapezoidal annular groove --- riffler, second platform
One of annular groove is machined with the middle part of rank hole, groove is machined with one of annular respectively built with sealing ring, the upper and lower part of annular groove
Shallow slot --- glue groove, connect as one with float valve necking down body at step surface and stepped hole, contracted in glue groove and with float valve
High-temperature agglomerant is filled with the gap of neck body, bottom endoporus is machined with a step, is threaded in stepped hole, fixed
Casing.
Connection valve pocket is a circular tube shaped, is machined with twice or three annular grooves on its periphery, and groove is built with sealing ring, outside
Outer L-shaped is processed into disc bottom, with buffering rubber ring connect as one, periphery top be machined be uniformly distributed along the circumference U-shaped breach,
V-notch, Long Circle hole or slotted eye --- current by pass, the quantity of current by pass is two, three or four, is let out in each two
Be machined with a circular hole on periphery in the middle part of circulation road, circular hole is connected as one with fixed seat built with pin, endoporus on to
Under be machined with three steps, first step is located at below current by pass, and is processed into circular conical surface, and second step is exactly spacing
Platform, back-moving spring is support on the 3rd step.
Fixed seat is a cylinder, and two steps are machined with the periphery of its underpart, and first step surface is circular conical surface, the
Blind hole is radially machined with periphery below two steps, it is corresponding with the circular hole of connection valve pocket periphery top processing,
For circular hole built with pin, blind hole can be processed into straight hole or the stepped hole being threaded, on its top periphery with current by pass
Corresponding position is machined with the radial opening of respective numbers --- and diffusion admittance, cylinder is machined with upper surface or cone is blind
Hole, the step-like scallop hole of respective numbers is machined with from blind via bottom position corresponding with diffusion admittance, and step surface is sector
Circular conical surface, the blind hole and step-like scallop hole are formed --- and mainstream channel, mainstream channel communicate with diffusion admittance and current by pass,
It is machined with a step blind hole on fixed seat lower surface, is threaded in hole more than step surface, passes through screw thread and seal plug
Connect as one.
Seal plug is a cylinder, and respectively there is a step upper and lower part, is machined with the face of cylinder more than upper step
Screw thread, connected as one by screw thread and fixed seat, the periphery below lower step is circular conical surface, and two are machined with bottom surface
It is individual that the structure of seal plug has two kinds on centrosymmetric blind hole, and one：For monolithic construction, by polytetrafluoroethylene (PTFE), polyether-ether-ketone
Or the composite processing being made up of polytetrafluoroethylene (PTFE), molybdenum disulfide, copper powder etc. forms；Two：For fabricated structure, by machined
The metal-cored and polytetrafluoroethylene (PTFE) of screw thread, polyether-ether-ketone, heat resistant rubber are made up of polytetrafluoroethylene (PTFE), molybdenum disulfide, copper powder etc.
Composite material combination be integrated, float valve necking down body is a circular tube shaped, and endoporus upper and lower part is all machined with chamfering, upper bevel
Angle is identical with the circular conical surface angle below seal plug lower step, is brought into close contact to form sealing pair, its material be hard alloy,
Ceramics, high-chromium alloy or other hard high-wearing feature materials, seal plug lower stage terrace are formed with float valve necking down body upper surface
Second sealing pair, fixed seat lower surface and first, float valve core body top step, are protected to sealing pair.
Axial hole is machined with the bottom of riffler to communicate with floating oil pocket --- oiling passage, it is machined with oiling passage
Screw thread, fixed oil is stifled, and oil is stifled to be equipped with sealing ring between float valve core body, and the quantity of oiling passage is one or two, its position
Corresponding with the radial position of current by pass, diffusion admittance and mainstream channel, the structure of oiling passage has two kinds, and one：In float valve
The bottom at the top position of intermediate annular groove processed on core body periphery is machined with one of annular groove with processing in sand setting trench bottom
Axial hole communicate；Two：The bottom at the top position of intermediate annular groove processed on float valve core body periphery is machined with radial hole
Communicated with the axial hole processed in sand setting trench bottom.
Quantity is equal between current by pass, diffusion admittance and mainstream channel three, and radial position is corresponding, diffusion admittance position
In the relatively upper bit of deceleration cavity volume, current by pass is located at the lower part position of deceleration cavity volume.
Oiling float valve housing is a circular tube shaped, and both ends are threaded, and endoporus is machined with an annular from top to bottom
Groove --- deceleration cavity volume and a step, miscellaneous part dress up a component loaded on step.
Sell for a straight pin or hexagon socket cap head screw, connection valve pocket is connected as one with fixed seat, apply during installation
Fire resistant anaerobic adhesive.
The present invention has advantages below：The oil drilling is provided with floating oil pocket with oiling float valve, fills inside it high gentle
Lubricating oil or Hmp grease, be provided with slurry channel riffler and dual-seal it is secondary and together with sealing pair protection step, also set
Limited location platform and pillar are protected to back-moving spring, and float valve necking down body is hard by hard alloy, ceramics, high-chromium alloy or other height
Degree high-wearing feature material is process, simple in construction, intensity is high, have a safety feature, reliability is high, anti-erosion property is strong, uses
Long lifespan, easy to operate, O＆M cost is low, application of the invention, greatly reduces drilling risk and production cost.
Figure of description
Fig. 1：Oil drilling oiling float valve schematic diagram 1
Brief description of the drawings:1st, oiling float valve housing 2, buffering rubber ring 3, connection valve pocket 4, limiting stand 5, back-moving spring 6,
Float valve core body 7, floating oil pocket 8, oiling passage 9, oil block up 10, seal plug 11, current by pass 12, fixed seat 13, diffusion
Passage 14, mainstream channel 15, deceleration cavity volume 16, pin 17, riffler 18, glue groove 19, float valve necking down body 20, casing.
Embodiment
In conjunction with Figure of description Fig. 1, the present invention will be further described.
Embodiment 1：
Oil drilling oiling float valve includes oiling float valve housing 1, buffering rubber ring 2, connection valve pocket 3, limiting stand 4, reset
Spring 5, float valve core body 6, floating oil pocket 7, oiling passage 8, oil are stifled 9, seal plug 10, current by pass 11, fixed seat 12, diffusion are logical
Road 13, mainstream channel 14, deceleration cavity volume 15, pin 16, riffler 17, glue groove 18, float valve necking down body 19, casing 20, float valve core
Body 6 is a circular tube shaped, and three annular grooves are machined with its periphery, wherein upper and lower twice annular groove is built with sealing ring, it is middle
Annular groove and the inwall and upper and lower two seals circle, oiling passage 8, oil stifled 9 and its close between float valve core body 6 for connecting valve pocket 3
Seal forms floating oil pocket 7, fills high temperature grease inside it, and 6 cylindrical bottom of float valve core body is machined with a step, under step
Face is support by back-moving spring 5, and top endoporus is machined with two steps, first step surface be machined between top surface together with fall
Trapezoidal annular groove --- riffler 17, is machined with one of annular groove in the middle part of second stepped hole, groove built with sealing ring, annular groove
Upper and lower part is machined with one of annular shallow slot respectively --- glue groove 18, at step surface and stepped hole with float valve necking down body 19
Connect as one, be filled with high-temperature agglomerant in the gap in the glue groove 18 and with float valve necking down body 19, hole machined in bottom
There is a step, be threaded in stepped hole, fixed casing 20.
Connection valve pocket 3 is a circular tube shaped, is machined with twice annular groove on its periphery, groove is built with sealing ring, periphery
Outer L-shaped is processed into bottom, is connected as one with buffering rubber ring 2, periphery top is machined with the Long Circle being uniformly distributed along the circumference
Hole --- current by pass 11, the quantity of current by pass 11 is three, is processed on the periphery at the middle part of each two current by pass 11
There is a circular hole, circular hole is connected as one with fixed seat 12 built with pin 16, and endoporus is machined with three steps from top to bottom, and
One step is located at current by pass below 11, and is processed into circular conical surface, and second step is exactly limiting stand 4, on the 3rd step
Support back-moving spring 5.
Fixed seat 12 is a cylinder, and two steps are machined with the periphery of its underpart, and first step surface is circular conical surface,
Blind hole is radially machined with periphery below second step, it is relative with the circular hole of connection valve pocket 3 periphery top processing
Should, for circular hole built with pin 16, blind hole is the stepped hole being threaded, on its top periphery with 11 corresponding position of current by pass
Put the radial opening for being machined with respective numbers --- diffusion admittance 13, cone-shaped blind hole is machined with upper surface, from the blind hole bottom
Portion is machined with the step-like scallop hole of respective numbers with 13 corresponding position of diffusion admittance, and step surface is sector bevel face, and this is blind
Hole and step-like scallop hole are formed --- and mainstream channel 14, mainstream channel 14 communicate with diffusion admittance 13 and current by pass 11, Gu
It is machined with a step blind hole on the lower surface of reservation 12, is threaded in hole more than step surface, passes through screw thread and seal plug
10 connect as one.
Seal plug 10 is a cylinder, and respectively there is a step upper and lower part, is processed on the face of cylinder more than upper step
There is screw thread, connected as one by screw thread and fixed seat 12, the periphery below lower step is circular conical surface, is processed on bottom surface
It on centrosymmetric blind hole, seal plug 10 is monolithic construction to have two, is process by polytetrafluoroethylene (PTFE), float valve necking down body
19 be a circular tube shaped, and endoporus upper and lower part is all machined with chamfering, upper bevel angle with below the lower step of seal plug 10
Circular conical surface angle is identical, is brought into close contact to form sealing pair, and its material is hard alloy, and the lower stage terrace of seal plug 10 contracts with float valve
The upper surface of neck body 19 forms the second sealing pair, the lower surface of fixed seat 12 and first, 6 top of float valve core body step, and sealing pair is entered
Row protection.
Axial hole is machined with the bottom of riffler 17 to communicate with floating oil pocket 7 --- oiling passage 8, in oiling passage 8
It is threaded, fixed oil stifled 9, oil is stifled to be equipped with sealing ring between 9 and float valve core body 6, the quantity of oiling passage 8 is two, its
Position is corresponding with the radial position of current by pass 11, diffusion admittance 13 and mainstream channel 14, and oiling passage 8 refers in float valve core
The bottom at the top position of intermediate annular groove processed on the periphery of body 6 is machined with one of annular groove with processing in the bottom of riffler 17
Axial hole communicate.
Quantity is equal between current by pass 11, diffusion admittance 13 and the three of mainstream channel 14, and radial position is corresponding, diffusion
Passage 13 is located at the relatively upper bit of deceleration cavity volume 15, and current by pass 11 is located at the lower part position of deceleration cavity volume 15.
Oiling float valve housing 1 is a circular tube shaped, and both ends are threaded, and endoporus is machined with an annular from top to bottom
Groove --- deceleration cavity volume 15 and a step, miscellaneous part dress up a component loaded on step.
Pin 16 is a hexagon socket cap head screw, and connection valve pocket 3 is connected as one with fixed seat 12, applies resistance to height during installation
Warm anaerobic adhesive.
Embodiment 2：
Unlike a kind of example above, connect and be machined with three annular grooves on the periphery of valve pocket 3, its periphery top
It is machined with the U-shaped breach being uniformly distributed along the circumference --- current by pass 11, the quantity of current by pass 11 is two.
Hmp grease is filled inside floating oil pocket 7.
The blind hole radially processed on periphery on the bottom periphery of fixed seat 12 below second step is straight hole, its
Blind cylindrical hole is machined with upper surface.
Seal plug 10 is monolithic construction, is process by polyether-ether-ketone.
The material of float valve necking down body 19 is ceramics.
Oiling passage 8 refers to that the bottom at the top position of intermediate annular groove processed on the periphery of float valve core body 6 is machined with
Radial hole communicates with the axial hole processed in the bottom of riffler 17, and the quantity of oiling passage 8 is one.
Pin 16 is a straight pin.
Embodiment 3：
Unlike both above example, connection valve pocket 3 periphery top is machined with the ellipse being uniformly distributed along the circumference
Hole --- current by pass 11, the quantity of current by pass 11 is four.
Seal plug 10 is monolithic construction, by composite processing that polytetrafluoroethylene (PTFE), molybdenum disulfide, copper powder etc. form and
Into.
The material of float valve necking down body 19 is high-chromium alloy.
Embodiment 4：
Unlike three kinds of examples above, connection valve pocket 3 periphery top is machined with the V-arrangement being uniformly distributed along the circumference and lacked
Mouthful --- current by pass 11.
Seal plug 10 is fabricated structure, is integrated by the metal-cored and polytetrafluoroethylcombination combination that machined screw thread.
Embodiment 5：
Unlike four kinds of examples above, seal plug 10 is fabricated structure, by machined the metal-cored and poly- of screw thread
Ether ether ketone is combined into one.
Embodiment 6：
Unlike five kinds of examples above, seal plug 10 is fabricated structure, by machined the metal-cored and resistance to of screw thread
Hot building rubber compound is integrated.
Embodiment 7：
Unlike six kinds of examples above, seal plug 10 is fabricated structure, by machined the metal-cored of screw thread and by
The composite material combination of the compositions such as polytetrafluoroethylene (PTFE), molybdenum disulfide, copper powder is integrated.
Oil drilling is initially closed mode with oiling float valve, it is threaded into drill string by upper and lower ends, mud leads to
Road connection finishes, and the operation such as can carry out normal drilling well, make a trip.Slush pump is opened, mud enters oil drilling from top
With the top endoporus of the oiling float valve housing 1 of oiling float valve, mainstream channel 14 is flowed into, part mud is flowed into by diffusion admittance 13 to be subtracted
Fast cavity volume 15, then the bottom of mainstream channel 14 is imported by current by pass 11, mud pressure is overcome between float valve core body 6 and connection valve pocket 3
Frictional force and back-moving spring 5 pretightning force, promote float valve core body 6 and be secured to the float valve necking down body 19 being integrated, together with
High temperature grease or Hmp grease in floating oil pocket 7, compression reseting spring 5 move down, float valve necking down body 19 and sealing
Stifled 10 disengage, and mud sequentially enters float valve core body 6, casing 20, oiling by mainstream channel 14 through the endoporus of float valve necking down body 19
The endoporus of float valve housing 1, finally flows into lower drilling tool, and circulating mud produces one because of throttle effect at float valve necking down body 19
Pressure difference, the pressure difference keep back-moving spring 5 to be in confined state, and float valve necking down body 19 is in disengaged position, mud with seal plug 10
Slurry passage is in open mode, and the pressure difference, the decrement of back-moving spring 5 are with gap of the float valve necking down body 19 away from seal plug 10 with mud
The increase of stock pump discharge capacity and increase, when gap of the float valve necking down body 19 away from seal plug 10 increases to setting value, limiting stand 4 supports
Firmly float valve core body 6, the decrement of back-moving spring 5 and gap of the float valve necking down body 19 away from seal plug 10 are no longer with mud pumpage
Increase and increase, oil drilling is in stable open mode with oiling float valve, and back-moving spring 5 is protected, and mud passes through.
When slush pump is closed, mud stops circulation, pressure differential collapses of the mud at float valve necking down body 19, in by compression shape
The back-moving spring 5 of state overcomes float valve core body 6 and the frictional force connected between valve pocket 3 to promote float valve core body 6 and be secured to be integrated
Float valve necking down body 19, together with the high temperature grease or Hmp grease in floating oil pocket 7, move up, float valve necking down body 19
Together with top inner bore chamfering is brought into close contact with the circular conical surface below the lower step of seal plug 10, sealing pair is formed, closes mud
Passage, prevent bottom mud from being flowed back along drill string endoporus, prevent strata pressure to be communicated up, avoid the accidents such as overflow, well kick, blowout
Generation, also prevent the waste and environmental pollution of mud.
By to the various embodiments described above, contributing to public's the understanding of the present invention, protection scope of the present invention is not limited to
Various embodiments above, any change to each component feature of the present invention or overall structure form rather than substantive content are all considered as this hair
Bright technical scheme.
Claims (8)
1. oil drilling oiling float valve, it is characterized in that including oiling float valve housing（1）, buffering rubber ring（2）, connection valve pocket（3）、
Limiting stand（4）, back-moving spring（5）, float valve core body（6）, floating oil pocket（7）, oiling passage（8）, oil it is stifled（9）, seal plug（10）、
Current by pass（11）, fixed seat（12）, diffusion admittance（13）, mainstream channel（14）, deceleration cavity volume（15）, pin（16）, riffler
（17）, glue groove（18）, float valve necking down body（19）, casing（20）, float valve core body（6）For a circular tube shaped, processed on its periphery
There are three annular grooves, wherein upper and lower twice annular groove, built with sealing ring, intermediate annular groove is with being connected valve pocket（3）Inwall and
Upper and lower two seals circle, oiling passage（8）, oil it is stifled（9）And its with float valve core body（6）Between sealing ring form floating oil pocket
（7）, high temperature grease or Hmp grease, float valve core body are filled inside it（6）Cylindrical bottom is machined with a step, under step
Face is by back-moving spring（5）Support, top endoporus is machined with two steps, together with first step surface is machined between top surface
Inverted trapezoidal annular groove --- riffler（17）, one of annular groove is machined with the middle part of second stepped hole, and groove is built with sealing ring, annular
The upper and lower part of groove is machined with one of annular shallow slot respectively --- glue groove（18）, contracted at step surface and stepped hole with float valve
Neck body（19）Connect as one, in glue groove（18）It is interior and with float valve necking down body（19）Gap in be filled with high-temperature agglomerant,
Bottom endoporus is machined with a step, is threaded in stepped hole, fixed casing（20）.
2. oil drilling according to claim 1 oiling float valve, it is characterized in that connection valve pocket（3）For a circular tube shaped, its
Twice or three annular grooves are machined with periphery, groove is processed into outer L-shaped built with sealing ring, periphery bottom, with buffering adhesive
Ring（2）Connect as one, periphery top is machined with the U-shaped breach being uniformly distributed along the circumference, V-notch, Long Circle hole or ellipse
Hole --- current by pass（11）, current by pass（11）Quantity be two, three or four, in each two current by pass（11）Middle part
A circular hole is machined with periphery, circular hole is built with pin（16）, with fixed seat（12）Connect as one, endoporus adds from top to bottom
Work has three steps, and first step is located at current by pass（11）Hereinafter, and circular conical surface is processed into, second step is exactly spacing
Platform（4）, back-moving spring is support on the 3rd step（5）.
3. oil drilling according to claim 1 oiling float valve, it is characterized in that fixed seat（12）For a cylinder, under it
It is machined with two steps on portion's periphery, first step surface is circular conical surface, on the periphery below second step radially
Blind hole is machined with, with being connected valve pocket（3）The circular hole of periphery top processing is corresponding, and circular hole is built with pin（16）, blind hole can be with
The stepped hole for being processed into straight hole or being threaded, on its top periphery with current by pass（11）Corresponding position is machined with phase
Answer the radial opening of quantity --- diffusion admittance（13）, cylinder or cone-shaped blind hole are machined with upper surface, from the blind via bottom
With diffusion admittance（13）Corresponding position is machined with the step-like scallop hole of respective numbers, and step surface is sector bevel face, and this is blind
Hole and step-like scallop hole are formed --- mainstream channel（14）, mainstream channel（14）With diffusion admittance（13）And current by pass（11）
Communicate, fixed seat（12）It is machined with a step blind hole on lower surface, is threaded in hole more than step surface, passes through screw thread
With seal plug（10）Connect as one.
4. oil drilling according to claim 1 oiling float valve, it is characterized in that seal plug（10）For a cylinder, top
Respectively there is a step with bottom, be threaded on the face of cylinder more than upper step, pass through screw thread and fixed seat（12）Connection
It is integrated, the periphery below lower step is circular conical surface, and two are machined with bottom surface on centrosymmetric blind hole, sealing
It is stifled（10）Structure have two kinds, one：For monolithic construction, by polytetrafluoroethylene (PTFE), polyether-ether-ketone or by polytetrafluoroethylene (PTFE), curing
The composite processing of the compositions such as molybdenum, copper powder forms；Two：For fabricated structure, by the metal-cored and polytetrafluoro that machined screw thread
Ethene, polyether-ether-ketone, heat resistant rubber or the composite material combination that is made up of polytetrafluoroethylene (PTFE), molybdenum disulfide, copper powder etc. are integrated,
Float valve necking down body（19）For a circular tube shaped, endoporus upper and lower part is all machined with chamfering, upper bevel angle and seal plug（10）
Circular conical surface angle below lower step is identical, is brought into close contact to form sealing pair, and its material is hard alloy, ceramics, Gao Gehe
Gold or other hard high-wearing feature materials, seal plug（10）Lower stage terrace and float valve necking down body（19）Upper surface forms second
Sealing pair, fixed seat（12）Lower surface and float valve core body（6）First, top step, is protected to sealing pair.
5. oil drilling according to claim 1 oiling float valve, it is characterized in that in riffler（17）Bottom be machined with
Axial hole and floating oil pocket（7）Communicate --- oiling passage（8）, oiling passage（8）Inside it is threaded, fixed oil is stifled（9）,
Oil is stifled（9）With float valve core body（6）Between sealing ring, oiling passage are housed（8）Quantity be one or two, its position leads to aerial drainage
Road（11）, diffusion admittance（13）And mainstream channel（14）Radial position it is corresponding, oiling passage（8）Structure have two kinds, one：
In float valve core body（6）The bottom at the top position of intermediate annular groove processed on periphery is machined with one of annular groove with processing heavy
Sand launder（17）The axial hole of bottom communicates；Two：In float valve core body（6）The bottom at the top position of intermediate annular groove processed on periphery
Portion is machined with radial hole with processing in riffler（17）The axial hole of bottom communicates.
6. oil drilling according to claim 1 oiling float valve, it is characterized in that current by pass（11）, diffusion admittance（13）
With mainstream channel（14）Quantity is equal between three, and radial position is corresponding, diffusion admittance（13）Positioned at deceleration cavity volume（15）'s
Compared with upper bit, current by pass（11）Positioned at deceleration cavity volume（15）Lower part position.
7. oil drilling according to claim 1 oiling float valve, it is characterized in that oiling float valve housing（1）For a pipe
Shape, both ends are threaded, and endoporus is machined with an annular groove from top to bottom --- deceleration cavity volume（15）With a step, other
Part dresses up a component loaded on step.
8. oil drilling according to claim 1 oiling float valve, it is characterized in that pin（16）For a straight pin or interior hexagonal
Fillister head screw, valve pocket will be connected（3）With fixed seat（12）Connect as one, apply fire resistant anaerobic adhesive during installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720640735.XU CN206860986U (en) | 2017-06-05 | 2017-06-05 | Oil drilling oiling float valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720640735.XU CN206860986U (en) | 2017-06-05 | 2017-06-05 | Oil drilling oiling float valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206860986U true CN206860986U (en) | 2018-01-09 |
Family
ID=60830630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720640735.XU Expired - Fee Related CN206860986U (en) | 2017-06-05 | 2017-06-05 | Oil drilling oiling float valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206860986U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152544A (en) * | 2017-06-05 | 2017-09-12 | 东营市创元石油机械制造有限公司 | Oil drilling oiling float valve |
-
2017
- 2017-06-05 CN CN201720640735.XU patent/CN206860986U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152544A (en) * | 2017-06-05 | 2017-09-12 | 东营市创元石油机械制造有限公司 | Oil drilling oiling float valve |
| CN107152544B (en) * | 2017-06-05 | 2023-12-19 | 东营市创元石油机械制造有限公司 | Oil injection float valve for petroleum drilling |
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