CN106761557B - Releasing type fixed valve, injection and production process pipe column and method thereof - Google Patents
Releasing type fixed valve, injection and production process pipe column and method thereof Download PDFInfo
- Publication number
- CN106761557B CN106761557B CN201611232530.4A CN201611232530A CN106761557B CN 106761557 B CN106761557 B CN 106761557B CN 201611232530 A CN201611232530 A CN 201611232530A CN 106761557 B CN106761557 B CN 106761557B
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- valve
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- sliding block
- type fixed
- sliding sleeve
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000002347 injection Methods 0.000 title claims description 6
- 239000007924 injection Substances 0.000 title claims description 6
- 238000010793 Steam injection (oil industry) Methods 0.000 claims abstract description 26
- 239000010779 crude oil Substances 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 claims description 9
- 238000005065 mining Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 abstract description 8
- 239000003129 oil well Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 230000010354 integration Effects 0.000 description 5
- 230000002411 adverse Effects 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention provides a releasing type fixed valve, an injection-production process tubular column and a method thereof, wherein the releasing type fixed valve comprises a body provided with an axial channel from top to bottom, a cylindrical sliding sleeve, at least three sliding blocks, a valve seat and a valve ball; the sliding sleeve is fixed in the axial channel, the cross section of the inner wall of the sliding sleeve is gradually enlarged from top to bottom, the inner wall of the sliding sleeve is provided with tracks with the same number as the sliding blocks, and each track corresponds to each sliding block one by one; one side of each sliding block can be arranged in the corresponding track in a vertically sliding manner, and the other side of each sliding block extends out of the track; the valve seat is fixed in the axial channel and positioned below the sliding sleeve, and a seat hole is formed in the valve seat; the valve ball can enter the axial channel and abut against the edge of the upper end of the other side of each sliding block, the valve ball extrudes each sliding block to respectively slide downwards along the corresponding track until the valve ball can continuously fall downwards through a gap formed by the upper ends of the sliding blocks and is seated on the seating hole. The invention omits the intermediate process of pulling out the steam injection pipe column and promotes the production.
Description
Technical field
The present invention relates to the technical field of petroleum production engineering, in particular to a kind of releasing type fixed valve has the releasing type solid
Determine the injection-production technical tubing string and injection-production technology method of valve.
Background technique
The proportion of yield Zhan total oil-producing of the viscous crude in oil field is larger at present, the exploitation side for mainly steam injection being taken to handle up
Formula.In the prior art, steam injection and exploitation are divided to two sessions to carry out, and the sequence of operation is successively are as follows: injection steam-boils in a covered pot over a slow fire well-and rises
Lower flow string-the opening well and making production of steam injection string-, needs successively to remove tubing string twice, in the process, acts the work of steam injection string
Sequence consumes the more time, brings many adverse effects to oil well production management, consume a large amount of maintainability operation at
This, rate when delaying oil well production.
Simultaneously in the process for acting steam injection string, it is easy to happen gas blowout accident, is easy to happen danger, is brought not to production
Necessary trouble also increases the labor intensity of operation, brings pollution to environment, is unfavorable for current green production requirement.
Summary of the invention
For the technical problem of the injection-production technology complexity of solution, the present invention proposes a kind of releasing type fixed valve, injection-production technology pipe
Column and its method can be switched to mining operations from steam injection operation, be realized note and adopt integration by setting for valve ball, be omitted
The intermediate process for acting steam injection string, saves the time, promotes production.
The present invention proposes a kind of releasing type fixed valve, and the releasing type fixed valve includes ontology, tubular sliding sleeve, at least
Three sliding blocks, valve seat and valve ball；
The axial passage penetrated through from top to bottom is set on the ontology；The sliding sleeve is fixed in the axial passage,
The cross-sectional shape of inner wall is gradually expanded from top to bottom, and rail identical with the quantity of the sliding block is arranged on the inner wall of the sliding sleeve
Road, each track and each sliding block correspond；The side of each sliding block can slide up and down to be placed in it is corresponding described
In track, the track is stretched out in the other side of each sliding block；
The valve seat is fixed in the axial passage, and is located at the lower section of the sliding sleeve, along the axis on the valve seat
It is opened up to the axial direction in channel and sets hole；
The valve ball can enter in the axial passage, and be resisted against the upper end-face edge of the other side of each sliding block, institute
It states valve ball and squeezes each sliding block respectively along the corresponding track slide downward, until the valve ball can be through each sliding block
The gap that upper end surrounds continues to drop downward into, and sets and set on hole described.
Further, the ontology includes the pump box cupling, the standing valve cover that all have through hole set gradually from top to bottom
And valve union, through hole, the through hole of the standing valve cover and the through hole of the valve union of the pump box cupling are sequentially communicated；
The sliding sleeve is placed in the through hole of the pump box cupling, and the valve seat is placed in the through hole of the standing valve cover,
The valve seat is located at the top of the valve union.
Further, first shaft shoulder is arranged in the lower part of the inner wall of the through hole of the pump box cupling, and the sliding sleeve closely supports
It leans against on first shaft shoulder；The under shed of the through hole of the pump box cupling is sleeved on the outside of the standing valve cover；
The releasing type fixed valve further includes the support ring between the sliding sleeve and the standing valve cover, the support
The outer wall of ring is bonded with the inner wall of the through hole of the pump box cupling, and the upper surface of the support ring is resisted against the lower end of the sliding sleeve
On face, the lower end surface of the support ring is resisted against on the upper surface of the standing valve cover.
Further, the releasing type fixed valve further includes the spring being vertically arranged in the support ring, the bullet
The upper end of spring acts against on the lower end surface of each sliding block, and lower end acts against on the upper surface of the standing valve cover.
Further, the spring is volute spring, and the groove of annular is opened up on the lower end surface of each sliding block, described
The upper end of volute spring is placed in the groove.
Further, the releasing type fixed valve further includes the lower end that the spring is arranged in and the standing valve cover
Annular heelpiece between upper surface.
As a kind of enforceable mode, each track is the groove being provided on the inner wall of the sliding sleeve, each institute
The side for stating sliding block, which can slide up and down to, to be placed in the corresponding groove, and the groove is stretched out in the other side of each sliding block.
As another enforceable mode, each track includes two positive stop strips being oppositely arranged, each rail
Slippage slot is respectively enclosed between two positive stop strips and the inner wall of the sliding sleeve in road；
Each positive stop strip is respectively provided with the affixed side being oppositely arranged and limiting side, and each affixed side is each attached to described
On the inner wall of sliding sleeve；In each track, between the spacing between two affixed sides is greater than between two limiting sides
Away from；
Each sliding block respectively includes slipping part and support arranged side by side and sets portion, and the width of the slipping part is greater than the support
Set the width in portion；Each slipping part can slide up and down to respectively to be placed in the slippage slot of the corresponding track, each institute
The slippage slot that the corresponding track is stretched out in the support portion of setting respectively is stated, the valve ball can squeeze each medial surface for holding in the palm portion of setting
Upper end-face edge.
Further, second shaft shoulder is arranged in the lower part of the inner wall of the through hole of the standing valve cover, and the valve seat closely supports
It leans against on second shaft shoulder；
The under shed of the through hole of the standing valve cover is sleeved on the outside of the valve union, and the lower end surface of the valve seat is supported
On the upper surface for leaning against the valve union.
Further, the inner wall of the sliding sleeve surrounds trapezoidal column or the truncated cone.
The present invention also proposes that a kind of injection-production technical tubing string, the injection-production technical tubing string include the tool set gradually from top to bottom
There are the sucker rod, the plunger with through hole and above-mentioned releasing type fixed valve of through hole；
The plunger is connected to the lower end of the sucker rod, and the plunger includes at least the travelling valve bonnet that can be stretched up and down；
The releasing type fixed valve is fixed on the bottom of extraneous pit shaft, and the lower section of the plunger is arranged in；
The through hole of through hole and the plunger that valve ball passes sequentially through the sucker rod from top to bottom falls into axial passage
Interior, the travelling valve bonnet extends downwardly and pushes the valve ball, and the valve ball squeezes each sliding block.
Further, the releasing type fixed valve is arranged at intervals on the lower section of the plunger.
The present invention also proposes a kind of injection-production technology method, using above-mentioned injection-production technical tubing string, the injection-production technology method
Include the following steps:
Sliding sleeve, at least three sliding blocks and valve seat are separately mounted in the axial passage of ontology by step S10, then by institute
Sliding sleeve, the sliding block and the valve seat is stated to transfer in pit shaft with the ontology；Plunger is connected to the lower end of sucker rod, and under
Put the sucker rod and the plunger；Pass sequentially through from top to bottom the through hole of the sucker rod, the through hole of the plunger and
The axial passage injects steam, until completing steam injection operation；
Step S20, transfers valve ball, and the valve ball passes sequentially through the through hole and the plunger of the sucker rod from top to bottom
Through hole, into the axial passage, the valve ball is resisted against the upper end-face edge of the other side of each sliding block；
Step S30, the travelling valve bonnet extend downwardly and push the valve ball, and the valve ball squeezes each sliding block, respectively
The sliding block is respectively along the corresponding track slide downward, until the sky that the valve ball can be surrounded through the upper end of each sliding block
Gap continues to drop downward into the axial passage, and sets and set on hole described；
Step S40, the crude oil in pit shaft enter the axial passage, the crude oil by the under shed of the axial passage
The valve ball is jacked up upwards；The crude oil continues up injection by the valve ball and the gap set between hole, then
The through hole of the through hole and the sucker rod that pass sequentially through the plunger from bottom to up reaches ground, makees until completing exploitation
Industry.
The beneficial effect of the present invention compared with the prior art is: releasing type fixed valve of the invention can not only be put into
Steam injection operation is carried out before valve ball；The present invention can also investment valve ball, valve ball set at hole formed set and then opened
Operation is adopted, steam injection operation and production operation only need tripping in one-trip string, avoid after the completion of steam injection operation, also needed out steam injection
Tubing string, then tripping in flow string.Releasing type fixed valve of the invention realizes the integration of steam injection and flow string, reduces
Flow chart has saved operating cost, improves effective production time efficiency of oil well.
When lower backwardness is continued in the gap that valve ball is surrounded through the upper end of each sliding block, valve ball does not act on each sliding block at this time, supports
It leans against the spring below each sliding block and is no longer influenced by extruding, will be gradually recovered under own resilient effect.Spring pushes each sliding block
Respectively along corresponding track upward sliding, until spring returns to original state, each sliding block rises to initial position.When valve ball to
On when being jacked up, the gap that is surrounded due to the upper end of each sliding block again less than valve ball outer diameter, valve ball will not by being returned on sliding sleeve,
It ensure that the safety of operation.
Injection-production technical tubing string and its method of the invention, realizes note and adopts integration, under having avoided out after steam injection string
Enter flow string, reduce intermediate cargo handling operation, when needing to exploit, as long as investment valve ball, in the usual way tripping in sucker rod and
Plunger has striven for more times for production.And injection-production technical tubing string and its method of the invention, reduce operation time
Number, alleviates labor intensity, and then reduce the adverse effect to environment, improves rate when driving a well of oil well.In addition, of the invention
Injection-production technical tubing string can use barrel-type pump, discharge capacity is relatively high, improves production time efficiency.
Detailed description of the invention
Fig. 1 is the main view diagrammatic cross-section of releasing type fixed valve of the invention；
Fig. 2 is that the main view for the upper end-face edge that the valve ball of releasing type fixed valve of the invention is resisted against the other side of each sliding block is shown
It is intended to；
Fig. 3 is that the travelling valve bonnet of injection-production technical tubing string of the invention pushes the valve ball of releasing type fixed valve, and valve ball squeezes each
Sliding block is respectively along the schematic front view of track slide downward；
Fig. 4 is that the gap that the valve ball of releasing type fixed valve of the invention is surrounded through the upper end of each sliding block continues to drop downward into
Schematic front view；
Fig. 5 sets for the valve ball of releasing type fixed valve of the invention and is setting the schematic front view on hole；
Fig. 6 is the schematic diagram of the sliding sleeve of releasing type fixed valve of the invention and the cross section of track；
Fig. 7 is the schematic diagram of the sliding block of releasing type fixed valve of the invention and the cross section of track cooperation；
Fig. 8 is the main view diagrammatic cross-section of the sliding sleeve of releasing type fixed valve of the invention；
Fig. 9 is the right view diagrammatic cross-section of the sliding sleeve of releasing type fixed valve of the invention.
Appended drawing reference:
12- axial passage；
20- sliding sleeve；22- track；
30- sliding block；32- slipping part；34- support sets portion；
40- valve seat；42- sets hole；44- valve ball；
50- pumps box cupling；First shaft shoulder of 52-；
60- standing valve cover；Second shaft shoulder of 62-；
70- valve union；
82- support ring；84- spring；86- annular heelpiece；
90- positive stop strip；92- affixed side；94- limiting side；
100- travelling valve bonnet.
Specific embodiment
Below in conjunction with attached drawing, the technical characteristic and advantage above-mentioned to the present invention are clearly and completely described, it is clear that institute
The embodiment of description is only section Example of the invention, rather than whole embodiments.
Refering to Figure 1, the present invention proposes that a kind of releasing type fixed valve, releasing type fixed valve include ontology, are cylindrical in shape
Sliding sleeve 20, at least three sliding blocks 30, valve seat 40 and valve ball 44.
The axial passage 12 penetrated through from top to bottom is set on ontology；Sliding sleeve 20 is fixed in axial passage 12, sliding sleeve 20
The cross-sectional shape of inner wall is gradually expanded from top to bottom, and track identical with the quantity of sliding block 30 is arranged on the inner wall of sliding sleeve 20
22, each track 22 is corresponded with each sliding block 30；The side of each sliding block 30, which can slide up and down to, to be placed in corresponding track 22, respectively
Track 22 is stretched out in the other side of sliding block 30.
Valve seat 40 is fixed in axial passage 12, and is located at the lower section of sliding sleeve 20, along the axis of axial passage 12 on valve seat 40
Hole 42 is set to opening up.Valve ball 44 can enter in axial passage 12, please refer to shown in Fig. 2, and valve ball 44 is resisted against each sliding block 30
The upper end-face edge of the other side please refers to shown in Fig. 3, and valve ball 44 squeezes each sliding block 30 respectively along corresponding 22 slide downward of track,
It please refers to shown in Fig. 4, until the gap that valve ball 44 can be surrounded through the upper end of each sliding block 30 continues to drop downward into, please refers to Fig. 5 institute
Show, valve ball 44 is set on setting hole 42.
During each sliding block 30 moves down, since the cross-sectional shape of the inner wall of sliding sleeve 20 gradually expands from top to bottom
Greatly, therefore track 22 gradually expands outwardly from top to bottom, and the gap that the upper end of each sliding block 30 surrounds constantly increases, when surrounding
Gap when increasing to a certain extent, that is, when the gap that surrounds is greater than the diameter of fixed valve ball 44, valve ball 44 will be passed through, from each
It is slid downwards at the upper end-face edge of the other side of sliding block 30.
Releasing type fixed valve of the invention can not only carry out steam injection operation, the main mesh of steam injection before putting into valve ball 44
Be to reduce viscosity of crude, increase stratum energy, at present under operating condition, viscous crude and super-viscous oil are before using oil well pump lifting, substantially
A certain amount of steam is all injected, according to reservoir condition difference, injection rate has certain difference；The present invention can also be in investment valve ball
44, valve ball 44 set at hole 42 formed set and then carry out mining operations, steam injection operation and production operation only need tripping in one
Tubing string is plowed, avoids after the completion of steam injection operation, has also needed out steam injection string, then tripping in flow string.Of the invention gives up
Formula fixed valve realizes the integration of steam injection and flow string, and the intermediate process of steam injection string has been omitted out, that is, reduces work
Industry process, avoids pollution environment, has saved operating cost, improves effective production time efficiency of oil well.
Further, as shown in Figures 1 to 5, ontology includes that the pump for all having through hole set gradually from top to bottom connects
Hoop 50, standing valve cover 60 and valve union 70 pump the perforation of the through hole of box cupling 50, the through hole and valve union 70 of standing valve cover 60
Hole is sequentially communicated.Sliding sleeve 20 is placed in the through hole of pump box cupling 50, and valve seat 40 is placed in the through hole of standing valve cover 60, valve seat 40
Positioned at the top of valve union 70.
By said structure design, sliding sleeve 20 and valve seat 40 are separately mounted to the different piece of ontology, to make valve seat
40 are arranged at intervals on the lower section of sliding sleeve 20, and valve ball 44 is enable to have enough motion paths in axial passage 12, valve ball 44 and each
Sliding block 30 is spaced larger distance.In subsequent recovery process, when valve ball 44 is jacked up, valve ball 44 will not touch each cunning
The lower end surface of block 30, avoids colliding between valve ball 44 and sliding block 30, is also avoided that exploitation Crude Oil pushes each 30 edge of sliding block
Track 22 continues up sliding.
Further, first shaft shoulder 52,20 tight abutment of sliding sleeve is arranged in the lower part for pumping the inner wall of the through hole of box cupling 50
On first shaft shoulder 52；The under shed for pumping the through hole of box cupling 50 is sleeved on the outside of standing valve cover 60.Releasing type fixed valve is also
Including the support ring 82 between sliding sleeve 20 and standing valve cover 60, the outer wall of support ring 82 is interior with the through hole of pump box cupling 50
Wall fitting, the upper surface of support ring 82 are resisted against on the lower end surface of sliding sleeve 20, and the lower end surface of support ring 82 is resisted against standing valve cover
On 60 upper surface.
More preferably, internal screw thread is arranged in the lower opening for pumping the through hole of box cupling 50, on the outer wall of the upper end of standing valve cover 60
External screw thread is set, pumps and is connected through a screw thread between the lower end of box cupling 50 and the upper end of standing valve cover 60.Sliding sleeve 20 is resisted against
On one shaft shoulder 52, it is restricted moving upwards for sliding sleeve 20；And branch is set between sliding sleeve 20 and the upper end of standing valve cover 60
Pushing out ring 82 is restricted moving downward for sliding sleeve 20, and sliding sleeve 20 can be securely fixed in the through hole of pump box cupling 50.
Further, releasing type fixed valve further includes the spring 84 being vertically arranged in support ring 82, spring 84 it is upper
End acts against on the lower end surface of each sliding block 30, and lower end acts against on the upper surface of standing valve cover 60.When valve ball 44 is through each sliding block
Lower backwardness is continued in the gap that 30 upper end surrounds, and is fallen into the through hole of standing valve cover 60 by the inner ring of spring 84, at this time valve
Ball 44 does not act on each sliding block 30, and the spring 84 for being resisted against each 30 lower section of sliding block is no longer influenced by extruding, will be in own resilient
It is gradually recovered under effect.
The elastic restoring force of spring 84 acts on the lower end surface of each sliding block 30, pushes each sliding block 30 respectively along corresponding track
22 upward slidings, until spring 84 is restored to original state shown in FIG. 1, each sliding block 30 rises to initial position shown in FIG. 1.
In subsequent recovery process, when valve ball 44 is jacked up, the gap surrounded due to the upper end of each sliding block 30 is again less than valve ball
44 outer diameter, valve ball 44 will not ensure that the safety of operation by returning on sliding sleeve 20.
In Fig. 1, the upward elastic force of the downward gravity that each sliding block 30 is subject to and the spring 84 being subject to mutually is balanced, each sliding block
30 remain stable state.More preferably, in the initial state, the upper surface of each sliding block 30 and the upper surface of sliding sleeve 20 are flat for spring 84
Together.More preferably, in the present embodiment, the quantity of sliding block 30 is three, and the gap that the upper end-face edge of each sliding block 30 surrounds is rounded (i.e.
The upper end-face edge of each sliding block 30 is distinguished equal at a distance from the central axis of sliding sleeve 20).When original state, the diameter of valve ball 44 is less than
The internal diameter in the gap that the upper end-face edge of each sliding block 30 surrounds；By each sliding block 30 along the slide downward of track, the circle surrounded is empty
The internal diameter of gap is gradually increased.
Further, spring 84 is volute spring, and the groove of annular, volute spring are opened up on the lower end surface of each sliding block 30
Upper end be placed in groove.Since the internal diameter of the inner ring of volute spring upper end is smaller, the inner ring of volute spring upper end can allow valve
Ball 44 passes through, and guarantees to fall in the through hole of standing valve cover 60 under valve ball 44 can continue.In addition, due in volute spring upper end
Circle is smaller, matches it with the groove opened up on the lower end surface of each sliding block 30, guarantees upper and lower along track 22 in each sliding block 30
During movement, the upper end of spring 84 suffers restraints, will not due to movement in chatter or other effect and shift or
Skew.
Further, releasing type fixed valve further include be arranged in spring 84 lower end and standing valve cover 60 upper surface it
Between annular heelpiece 86.
As a kind of enforceable mode, each track 22 is the groove being provided on the inner wall of sliding sleeve 20, each sliding block 30
Side can slide up and down to and be placed in corresponding groove, groove is stretched out in the other side of each sliding block 30.
It as another enforceable mode, please refers to shown in Fig. 6 and Fig. 7, each track 22 includes two be oppositely arranged
Root positive stop strip 90 is respectively enclosed to slippage slot between two positive stop strips 90 and the inner wall of sliding sleeve 20 of each track 22.Each positive stop strip 90
It is respectively provided with the affixed side 92 being oppositely arranged and limiting side 94, each affixed side 92 is each attached on the inner wall of sliding sleeve 20；Each track
In 22, the spacing between two affixed sides 92 is greater than the spacing between two limiting sides 94.
Each sliding block 30 respectively includes slipping part 32 and support arranged side by side and sets portion 34, and the width of slipping part 32 is greater than support and sets portion
34 width.Each slipping part 32 can slide up and down to respectively to be placed in the slippage slot of corresponding track 22, and each support sets the difference of portion 34
The slippage slot of corresponding track 22 is stretched out, valve ball 44 can squeeze each upper end-face edge for holding in the palm and setting the medial surface in portion 34.
That is, two positive stop strips 90 being oppositely arranged form cross-sectional width from inside to outside and gradually subtract in each track 22
Small slippage slot, slippage slot are similar to dovetail groove.The slipping part 32 of each sliding block 30 is similar to flange, which can be in dovetail groove
Sliding.Since the width of slipping part 32 (flange) is than asking the width for setting portion 34 big, during sliding up and down, flange can be securely
It is clamped in dovetail groove, flange will not be deviate from out of dovetail groove.
Further, as shown in Figures 1 to 5, second shaft shoulder 62 is arranged in the lower part of the inner wall of the through hole of standing valve cover 60,
40 tight abutment of valve seat is on second shaft shoulder 62.The under shed of the through hole of standing valve cover 60 is sleeved on the outside of valve union 70,
The lower end surface of valve seat 40 is resisted against on the upper surface of valve union 70.
More preferably, internal screw thread is set on the inner wall of the under shed of standing valve cover 60, external screw thread is arranged in the upper end of valve union 70,
It is connected through a screw thread between the lower end of standing valve cover 60 and the upper end of valve union 70.Valve seat 40 is resisted against on second shaft shoulder 62,
It is restricted moving upwards for valve seat 40；The lower end surface of valve seat 40 is resisted against on the upper surface of valve union 70, makes valve seat 40
It moves downward and is restricted, valve seat 40 can be securely fixed in the through hole of standing valve cover 60.
Further, the inner wall of sliding sleeve 20 surrounds trapezoidal column or the truncated cone, that is to say, that the longitudinal section of the inner wall of sliding sleeve 20
(section axial along sliding sleeve 20) trapezoidal or truncated cone shape.It please refers to shown in Fig. 8 and Fig. 9, in the present embodiment, the inner wall of sliding sleeve 20
Trapezoidal column is surrounded, the left and right sides side wall of trapezoidal column is inclined-plane, and wherein at least two track is located on inclined-plane.
As shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the present invention also proposes that a kind of injection-production technical tubing string, injection-production technical tubing string include
The sucker rod with through hole, the plunger with through hole and the above-mentioned releasing type fixed valve set gradually from top to bottom.
Plunger is connected to the lower end of sucker rod, and plunger includes at least the travelling valve bonnet 100 that can be stretched up and down；Releasing type is fixed
Valve is fixed on the bottom of extraneous pit shaft, and the lower section of plunger is arranged in.Valve ball 44 passes sequentially through passing through for sucker rod from top to bottom
The through hole of through-hole and plunger is fallen into axial passage 12, and travelling valve bonnet 100 extends downwardly and push valve ball 44, and valve ball 44 squeezes
Each sliding block 30.
The course of work of injection-production technical tubing string of the invention is as follows: when releasing type fixed valve is lowered into pit shaft with pump barrel
Predetermined position after completing predetermined action, valve ball 44 is put into pit shaft, valve ball 44 is in gravity, inertia and travelling valve bonnet 100
Thrust under, valve ball 44 pushes each sliding block 30 to move downward along the track 22 of sliding sleeve 20；It is same in valve ball 44 and each sliding block 30
While step moves downward, each 30 compressed spring 84 of sliding block, during the upper end of spring 84 moves downward (by compressing), respectively
The gap surrounded between sliding block 30 constantly increases；When increasing to the diameter greater than valve ball 44, valve ball 44 pass through each sliding block 30 it
Between the gap that surrounds, enter in the inner ring of spring 84, and continue toward falling.
Further, releasing type fixed valve is arranged at intervals on the lower section of plunger.Releasing type fixed valve and plunger interval away from
Plunger and releasing type fixed valve frequent impact in technical process can be prevented from dead space for dead space, is arranged, avoids damaging
Oil well pump.
The present invention also proposes a kind of injection-production technology method, and using above-mentioned injection-production technical tubing string, injection-production technology method includes
Following steps:
Sliding sleeve 20, at least three sliding blocks 30 and valve seat 40 are separately mounted in the axial passage 12 of ontology by step S10,
Then sliding sleeve 20, sliding block 30 and valve seat 40 are transferred in pit shaft with ontology；Plunger is connected to the lower end of sucker rod, and is transferred
Sucker rod and plunger；The through hole of sucker rod, the through hole of plunger and axial passage 12 are passed sequentially through from top to bottom injects steam,
Until completing steam injection operation；
Step S20, transfers valve ball 44, and valve ball 44 passes sequentially through the perforation of the through hole and plunger of sucker rod from top to bottom
Hole, into axial passage 12, valve ball 44 is resisted against the upper end-face edge of the other side of each sliding block 30；
Step S30, travelling valve bonnet 100 extend downwardly and push valve ball 44, and valve ball 44 squeezes each sliding block 30, and each sliding block 30 divides
Not along corresponding 22 slide downward of track, until the gap that valve ball 44 can be surrounded through the upper end of each sliding block 30 is in axial passage 12
Continue to drop downward into, and sets on setting hole 42；
Step S40, the crude oil in pit shaft enter axial passage 12 by the under shed of axial passage 12, and crude oil jacks up upwards
Valve ball 44；Crude oil continues up injection by valve ball 44 and the gap set between hole 42, then passes sequentially through column from bottom to up
The through hole of plug and the through hole of sucker rod reach ground, until completing mining operations.
Injection-production technical tubing string and its method of the invention, realizes note and adopts integration, under having avoided out after steam injection string
Enter flow string, the intermediate process of steam injection string has been omitted out, that is, reduce intermediate cargo handling operation, avoids that gas blowout accident occurs
Equal danger, avoid pollution environment.When needing to exploit, as long as investment valve ball 44, tripping in sucker rod and plunger in the usual way,
More times are striven for for production.And injection-production technical tubing string and its method of the invention, reduce operations number, alleviates
Labor intensity, and then reduce the adverse effect to environment, improve rate when driving a well of oil well.
In addition, currently used note adopts integrated pipe column and generallys use insert pump, it is not common barrel-type pump, and insert pump
Compared with barrel-type pump, discharge capacity is relatively low.Injection-production technical tubing string of the invention can use barrel-type pump, and discharge capacity is relatively high, mentions
High production time efficiency.
Particular embodiments described above has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that the above is only a specific embodiment of the present invention, the protection being not intended to limit the present invention
Range.It particularly points out, to those skilled in the art, all within the spirits and principles of the present invention, that is done any repairs
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (12)
1. a kind of releasing type fixed valve, which is characterized in that the releasing type fixed valve includes ontology, tubular sliding sleeve, at least
Three sliding blocks, valve seat and valve ball；
The axial passage penetrated through from top to bottom is set on the ontology；The sliding sleeve is fixed in the axial passage, inner wall
Circular cross section diameter be gradually expanded from top to bottom, identical with the quantity of sliding block rail is set on the inner wall of the sliding sleeve
Road, each track and each sliding block correspond；The side of each sliding block can slide up and down to be placed in it is corresponding described
In track, the track is stretched out in the other side of each sliding block；
The valve seat is fixed in the axial passage, and is located at the lower section of the sliding sleeve, logical along the axial direction on the valve seat
The axial direction in road, which opens up, sets hole；
The valve ball can enter in the axial passage, and be resisted against the upper end-face edge of the other side of each sliding block, the valve
Ball squeezes each sliding block respectively along the corresponding track slide downward, until the valve ball can be through the upper end of each sliding block
The gap surrounded continues to drop downward into, and sets and set on hole described；
Each track includes two positive stop strips being oppositely arranged, two positive stop strips and the sliding sleeve of each track
Inner wall between be respectively enclosed to slippage slot；
Each positive stop strip is respectively provided with the affixed side being oppositely arranged and limiting side, and each affixed side is each attached to the sliding sleeve
Inner wall on；In each track, the spacing between two affixed sides is greater than the spacing between two limiting sides；
Each sliding block respectively includes slipping part and support arranged side by side and sets portion, and the width of the slipping part is greater than the support and sets portion
Width；Each slipping part can slide up and down to respectively to be placed in the slippage slot of the corresponding track, each support
The slippage slot that the corresponding track is stretched out in portion respectively is set, the valve ball can squeeze the upper of each medial surface for holding in the palm portion of setting
End margin.
2. releasing type fixed valve according to claim 1, which is characterized in that the ontology includes setting gradually from top to bottom
The pump box cupling, standing valve cover and the valve union that all have through hole, it is described pump box cupling through hole, the standing valve cover perforation
The through hole of hole and the valve union is sequentially communicated；
The sliding sleeve is placed in the through hole of the pump box cupling, and the valve seat is placed in the through hole of the standing valve cover, described
Valve seat is located at the top of the valve union.
3. releasing type fixed valve according to claim 2, which is characterized in that under the inner wall of the through hole of the pump box cupling
First shaft shoulder is arranged in portion, and the sliding sleeve tight abutment is on first shaft shoulder；The under shed set of the through hole of the pump box cupling
Mounted in the outside of the standing valve cover；
The releasing type fixed valve further includes the support ring between the sliding sleeve and the standing valve cover, the support ring
Outer wall is bonded with the inner wall of the through hole of the pump box cupling, and the upper surface of the support ring is resisted against the lower end surface of the sliding sleeve
On, the lower end surface of the support ring is resisted against on the upper surface of the standing valve cover.
4. releasing type fixed valve according to claim 3, which is characterized in that the releasing type fixed valve further includes setting vertically
The spring in the support ring is set, the upper end of the spring acts against on the lower end surface of each sliding block, and lower end acts against
On the upper surface of the standing valve cover.
5. releasing type fixed valve according to claim 4, which is characterized in that the spring is volute spring, each cunning
The groove of annular is opened up on the lower end surface of block, the upper end of the volute spring is placed in the groove.
6. releasing type fixed valve according to claim 4, which is characterized in that the releasing type fixed valve further includes that setting exists
Annular heelpiece between the lower end of the spring and the upper surface of the standing valve cover.
7. releasing type fixed valve according to claim 1, which is characterized in that each track is to be provided with the sliding sleeve
Inner wall on groove, the side of each sliding block, which can slide up and down to, to be placed in the corresponding groove, each sliding block
The groove is stretched out in the other side.
8. releasing type fixed valve according to claim 2, which is characterized in that the inner wall of the through hole of the standing valve cover
Second shaft shoulder is arranged in lower part, and the valve seat tight abutment is on second shaft shoulder；
The under shed of the through hole of the standing valve cover is sleeved on the outside of the valve union, and the lower end surface of the valve seat is resisted against
On the upper surface of the valve union.
9. releasing type fixed valve according to claim 1, which is characterized in that the inner wall of the sliding sleeve surrounds trapezoidal column or cuts
Cone.
10. a kind of injection-production technical tubing string, which is characterized in that the injection-production technical tubing string includes having of setting gradually from top to bottom
The sucker rod of through hole, the described in any item releasing type fixed valves of plunger and claim 1 to 9 with through hole；
The plunger is connected to the lower end of the sucker rod, and the plunger includes at least the travelling valve bonnet that can be stretched up and down；It is described
Releasing type fixed valve is fixed on the bottom of extraneous pit shaft, and the lower section of the plunger is arranged in；
The through hole of through hole and the plunger that valve ball passes sequentially through the sucker rod from top to bottom is fallen into axial passage, institute
It states travelling valve bonnet and extends downwardly and push the valve ball, the valve ball squeezes each sliding block.
11. injection-production technical tubing string according to claim 10, which is characterized in that the releasing type fixed valve is arranged at intervals on
The lower section of the plunger.
12. a kind of injection-production technology method, which is characterized in that described using injection-production technical tubing string described in claim 10 or 11
Injection-production technology method includes the following steps:
Sliding sleeve, at least three sliding blocks and valve seat are separately mounted in the axial passage of ontology by step S10, then by the cunning
Set, the sliding block and the valve seat are transferred in pit shaft with the ontology；Plunger is connected to the lower end of sucker rod, and transfers institute
State sucker rod and the plunger；The through hole of the sucker rod, the through hole of the plunger and described are passed sequentially through from top to bottom
Axial passage injects steam, until completing steam injection operation；
Step S20, transfers valve ball, and the valve ball passes sequentially through the through hole of the sucker rod and passing through for the plunger from top to bottom
Through-hole, into the axial passage, the valve ball is resisted against the upper end-face edge of the other side of each sliding block；
Step S30, the travelling valve bonnet extend downwardly and push the valve ball, and the valve ball squeezes each sliding block, each described
Sliding block is respectively along the corresponding track slide downward, until the gap that the valve ball can be surrounded through the upper end of each sliding block exists
Continue to drop downward into the axial passage, and sets and set on hole described；
Step S40, the crude oil in pit shaft enter the axial passage by the under shed of the axial passage, and the crude oil is upward
Jack up the valve ball；The crude oil continues up injection by the valve ball and the gap set between hole, then under
The through hole of the supreme through hole for passing sequentially through the plunger and the sucker rod reaches ground, until completing mining operations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611232530.4A CN106761557B (en) | 2016-12-28 | 2016-12-28 | Releasing type fixed valve, injection and production process pipe column and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611232530.4A CN106761557B (en) | 2016-12-28 | 2016-12-28 | Releasing type fixed valve, injection and production process pipe column and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106761557A CN106761557A (en) | 2017-05-31 |
| CN106761557B true CN106761557B (en) | 2019-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611232530.4A Active CN106761557B (en) | 2016-12-28 | 2016-12-28 | Releasing type fixed valve, injection and production process pipe column and method thereof |
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| CN (1) | CN106761557B (en) |
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| US4597446A (en) * | 1982-11-29 | 1986-07-01 | Compagnie Francaise Des Petroles | Safety valves for wells |
| CN2737986Y (en) * | 2004-09-18 | 2005-11-02 | 胜利油田高原泵业有限责任公司 | Injection and extraction integrated oil-well pump |
| CN203499608U (en) * | 2013-04-28 | 2014-03-26 | 中国石油化工股份有限公司江汉油田分公司采油工艺研究院 | Multifunctional sand flushing and well washing valve |
| CN204113601U (en) * | 2014-09-23 | 2015-01-21 | 中国石油天然气股份有限公司 | Double-flow-direction oil well pump |
| CN104500015A (en) * | 2014-10-21 | 2015-04-08 | 中国石油集团川庆钻探工程有限公司 | Staged fracturing acidification controllable setting packer for oil-gas well |
| CN105089556A (en) * | 2015-07-30 | 2015-11-25 | 中国石油天然气股份有限公司 | Adjustable separate mining valve |
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2016
- 2016-12-28 CN CN201611232530.4A patent/CN106761557B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4597446A (en) * | 1982-11-29 | 1986-07-01 | Compagnie Francaise Des Petroles | Safety valves for wells |
| CN2737986Y (en) * | 2004-09-18 | 2005-11-02 | 胜利油田高原泵业有限责任公司 | Injection and extraction integrated oil-well pump |
| CN203499608U (en) * | 2013-04-28 | 2014-03-26 | 中国石油化工股份有限公司江汉油田分公司采油工艺研究院 | Multifunctional sand flushing and well washing valve |
| CN204113601U (en) * | 2014-09-23 | 2015-01-21 | 中国石油天然气股份有限公司 | Double-flow-direction oil well pump |
| CN104500015A (en) * | 2014-10-21 | 2015-04-08 | 中国石油集团川庆钻探工程有限公司 | Staged fracturing acidification controllable setting packer for oil-gas well |
| CN105089556A (en) * | 2015-07-30 | 2015-11-25 | 中国石油天然气股份有限公司 | Adjustable separate mining valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106761557A (en) | 2017-05-31 |
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