CN108590604B - Flow-collecting setting structure for small-flow bridge-free eccentric water distributor of oil field - Google Patents
Flow-collecting setting structure for small-flow bridge-free eccentric water distributor of oil field Download PDFInfo
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- CN108590604B CN108590604B CN201810500600.2A CN201810500600A CN108590604B CN 108590604 B CN108590604 B CN 108590604B CN 201810500600 A CN201810500600 A CN 201810500600A CN 108590604 B CN108590604 B CN 108590604B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 138
- 238000007789 sealing Methods 0.000 claims abstract description 93
- 238000012360 testing method Methods 0.000 claims abstract description 82
- 239000007788 liquid Substances 0.000 claims abstract description 76
- 230000005540 biological transmission Effects 0.000 claims description 79
- 239000010985 leather Substances 0.000 claims description 65
- 238000003825 pressing Methods 0.000 claims description 65
- 210000000707 wrist Anatomy 0.000 claims description 57
- 210000000078 claw Anatomy 0.000 claims description 46
- 230000033001 locomotion Effects 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 description 15
- 230000006835 compression Effects 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 238000013519 translation Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000003129 oil well Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- 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
- E21B43/20—Displacing by water
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- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/126—Packers; Plugs with fluid-pressure-operated elastic cup or skirt
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a flow-collecting setting structure for a small-flow bridge-free eccentric water distributor in an oil field, which comprises a testing sealing section for the bridge-free eccentric water distributor, wherein the top of the testing sealing section is provided with a water inlet, the bottom of the testing sealing section is provided with a water outlet, and a liquid flow channel for communicating the water inlet with the water outlet is arranged in the testing sealing section. According to the setting structure, the flow channel is arranged in the existing testing sealing section, so that the smooth downward flow of liquid flow is ensured without blocking at the testing sealing section after the eccentric water distributor without a bridge is set.
Description
Technical Field
The invention relates to a setting structure, in particular to a flow-collecting setting structure for a small-flow bridge-free eccentric water distributor in an oil field.
Background
The eccentric water distributor without a bridge is often adopted in oil field operation, when the small flow is injected into an oil well for measurement, because a liquid flow channel is too slow, ultrasonic waves and vortex flow cannot be measured under the condition of slow flow of liquid flow, a flow collecting flowmeter integrating an electromagnetic flowmeter and a flow collecting structure is usually adopted, but the application of the eccentric water distributor in actual production finds that the flow collecting measurement needs to ensure that all liquid flow injected into a central inner cavity pipeline of the water distributor passes through the flow collecting flowmeter, so that the central inner cavity pipeline needs to be seated and sealed, and the existing test sealing section for the bridge eccentric water distributor also has a bridge pipeline for water passing under the condition that the inner cavity pipeline is plugged by the test sealing section, so that the liquid flow cannot flow; however, the eccentric water distributor without the bridge only has an inner cavity pipeline, and if the existing testing sealing section for the bridge type eccentric water distributor is adopted to seat the eccentric water distributor without the bridge, because the only inner cavity pipeline is blocked, the injected and collected liquid flow is blocked at the position of the seat, and no other channel flows downwards, the underground pressure is increased due to the fact that the liquid cannot be injected, and the liquid at the wellhead overflows, so that the measurement cannot be carried out.
Disclosure of Invention
The invention aims to solve the technical problem that the existing testing sealing section for flow concentration measurement of a bridge type eccentric water distributor is not suitable for small-flow concentration measurement of an eccentric water distributor without a bridge, which can cause the situation that liquid cannot be injected.
The invention is realized by the following technical scheme:
the flow-collecting setting structure for the small-flow bridge-free eccentric water distributor in the oil field comprises a testing sealing section for the bridge-free eccentric water distributor, wherein a water inlet is formed in the top of the testing sealing section, a water outlet is formed in the bottom of the testing sealing section, and a liquid flow channel for communicating the water inlet with the water outlet is formed in the testing sealing section.
According to the setting structure, the flow channel is arranged in the existing testing sealing section, so that the smooth downward flow of liquid flow is ensured without blocking at the testing sealing section after the eccentric water distributor without a bridge is set. The water distributor is a device used for injecting water into an oil well, the testing sealing section is used for plugging the water distributor when the injection flow rate of the water distributor is tested, when the current-collecting type measurement is carried out in the existing bridge type water distributor, in order to enable all the liquid flow flowing into the water distributor to completely flow through the current-collecting flow meter, the testing sealing section can plug the pipeline of the middle inner cavity of the water distributor, the liquid flow measured by the flow meter can be plugged above the testing sealing section and cannot continuously flow downwards, but the bridge type water distributor is provided with the bridge type pipeline, so that the plugged liquid flow can smoothly flow downwards from the bridge type pipeline and the situation of pressure increase in the well can not be generated; however, when an eccentric water distributor without a bridge is used, only a central internal cavity exists in the water distributor, so that after the existing testing sealing section is used for setting and plugging, liquid measured by the flow meter does not have a downward flowing channel, and therefore liquid flow is blocked at the position sealed by the testing sealing section and is difficult to pass through, so that the injected liquid overflows an inlet, and the flow is difficult to measure. The test sealing section of the invention is provided with a water inlet at the top and a water outlet at the bottom, a liquid flow channel communicating the water inlet and the water outlet is arranged inside the test sealing section, when the test sealing section flows into the central inner cavity pipeline of the water distributor, the flow-collecting flowmeter is positioned above the test sealing section, the water outlet of the flow-collecting flowmeter is connected with the water inlet on the test sealing section, and the test sealing section blocks the central inner cavity pipeline, so that all liquid flow entering the central inner cavity pipeline of the water distributor can pass through the flow-collecting flowmeter, the flow-collecting efficiency is improved, the liquid flow passing through the flow-collecting flowmeter flows from the water outlet of the flow-collecting flowmeter through the liquid flow channel of the test sealing section and finally flows out from the water outlet, the liquid flow can not be blocked at the test sealing section, the flow-collecting measurement effect and the measurement accuracy are ensured, so that the flow measurement can be smoothly performed. The seal test section may be a seal test section used in the existing flow test technology, and thus, a specific structure of the seal test section is not described herein.
The test sealing section comprises an outer shell barrel, a water inlet is arranged at the upper end of the outer shell barrel, a water outlet is arranged at the lower end of the outer shell barrel, a pressing fixing ring and a pressing pushing sleeve are sequentially sleeved on the outer wall of the outer shell barrel, a leather wrist sleeve used for setting is sleeved between the pressing fixing ring and the pressing pushing sleeve, one end of the inner wall of the leather wrist sleeve is connected with the outer wall of the pressing fixing ring, the other end of the inner wall of the leather wrist sleeve is connected with the outer wall of the pressing pushing sleeve, the pressing pushing sleeve can move towards the pressing fixing ring along the axial direction under the driving of a driving mechanism, when the pressing pushing sleeve moves towards the pressing fixing ring, the leather wrist sleeve is extruded and deformed, the middle of the leather wrist sleeve can be used for setting the water distributor towards the.
The invention pushes the compression pushing sleeve to move to the compression fixing ring in a translation way through the driving mechanism, and the compression fixing ring is fixed on the shell barrel, so that the compression pushing sleeve protrudes and opens the middle part of the leather wrist sleeve outwards in the translation process, the protruding edge part is tightly attached to the inner wall of a central inner cavity pipeline of the water distributor, the sealing test section is sealed in the water distributor, the compression pushing sleeve moves back to the original position in a reverse direction, the pressure of the leather wrist sleeve is removed, the leather wrist sleeve is pulled back to the original shape through the elasticity and gravity of the leather wrist sleeve, the opening and the closing of the leather wrist sleeve are realized in a circulating way, and the purposes of sealing and unsealing are achieved3A small flow per day provides assurance. The leather wristlet mentioned above is the same as the leather wristlet used in the sitting and sealing structure in the prior art in structure and material.
The driving mechanism comprises a driving motor arranged below a water inlet in the shell barrel, the lower end of the driving motor is connected with a first transmission shaft which is coaxial with the shell barrel, a translational guide sleeve is sleeved on the first transmission shaft through a thread pair, a movable pin is vertically connected to the outer wall of the translational guide sleeve, a strip-shaped moving hole which is parallel to the axis of the shell barrel is formed in the outer wall of the shell barrel, the moving hole is positioned between the translational guide sleeve and the pressing push sleeve, the end part of the movable pin extends out of the moving hole and is flush with the outer wall of the pressing push sleeve, when the driving motor drives the first transmission shaft to rotate around the driving motor, can drive the translational guide sleeve and the movable pin to do linear motion towards the direction of the pressing and pushing sleeve, the movable pin can move along the track of the moving hole to be contacted with the end part of the pressing and pushing sleeve, and the pressing pushing sleeve is pushed to move towards the pressing fixing ring until the middle part of the leather wrist sleeve is raised to seat and seal the water distributor; a liquid flow channel is arranged between the driving motor, the first transmission shaft, the translational guide sleeve and the inner wall of the shell cylinder body and is communicated with the water inlet and the water outlet.
The driving structure of the invention firstly drives the first transmission shaft to rotate through the driving motor, the first transmission shaft drives the translational guide sleeve to move in a translational way towards the pressing pushing sleeve through the movement between the thread pairs, the pushing force is transmitted to the pressing pushing sleeve through the movement of the movable pin along the track of the moving hole to push the pressing pushing sleeve to move in a translational way to prop against the leather wrist sleeve, and the other side of the leather wrist sleeve is fixed on the shell barrel body through the pressing fixing ring, so the leather wrist sleeve is expanded under the driving of the driving motor to achieve the purpose of sealing the eccentric water distributor, and the procedure of withdrawing the leather wrist sleeve is to drive the first transmission shaft to operate in a reverse way to enable the leather wrist sleeve to be pulled back to the original form through the self elasticity and gravity.
Even there is positioner shell barrel below, positioner includes the secondary drive axle, cup joint together through the axle sleeve is coaxial between the top of secondary drive axle and the bottom of first transmission shaft, the cover is equipped with tight piece in the top in proper order on the secondary drive axle, the latch segment, the bottom fixed connection of tight piece in the top and shell barrel, cup joint through the screw thread pair between latch segment and the secondary drive axle, it has two locating claws to serve the articulated two that have near the latch segment on the tight piece in the top, two locating claws are located the both sides of secondary drive axle respectively, the secondary drive axle rotates around self axis under the drive of first transmission shaft through connecting the axle sleeve, can make the latch segment do linear motion towards the direction of keeping away from or being close to the locating claw, make the locating claw open or withdraw to the both sides of secondary drive axle.
The positioning device enables the structure of the invention to be accurately positioned in the water distributor, ensures that the structure is always positioned in a central pipeline of the water distributor, and when the structure is in an initial state, the positioning claw is in a closed state, namely the locking block retracts the free end of the positioning claw to two sides of the second transmission shaft through the shape matched with the positioning claw, the hinged end of the positioning claw is provided with a convex block on the side wall close to the second transmission shaft, the thickness of the convex block is matched with the wall thickness of the locking block, the hinged part of the positioning claw is provided with a tension spring which enables the positioning claw to be opened outwards, the locking block moves towards the direction of the convex block to be attached to the convex block, then the free end of the positioning claw is in a retracted state through the combined action of the positioning claw and the jacking block, and the side wall close to the second transmission shaft is closely attached to the outer wall of. When the structure is used for positioning, the driving motor drives the second transmission shaft to rotate, the second transmission shaft thread pair drives the locking block to translate towards the direction far away from the positioning claw, the limiting effect on the convex block is released, then the positioning claw expands outwards under the action of the tension spring, namely the locking block is close to the positioning claw to be compressed and then retracted, and the positioning claw far away from the positioning claw automatically expands, so that the structure can be positioned in an eccentric water distributor pipeline without a bridge. Wherein, the screw thread pair between first transmission shaft and the translation uide bushing, the screw thread direction and the setting that the screw thread formed of the screw thread pair between second transmission shaft and the latch segment want the phase-match, the length of moving the hole simultaneously and the distance between positioning pawl and the latch segment also need to match each other for when driving motor drives first transmission shaft and second transmission shaft corotation, leather wrist cover and positioning pawl open simultaneously or withdraw simultaneously, can be through a driving motor like this, realize opening or withdrawing of leather wrist cover and positioning pawl simultaneously. The direction of the above-mentioned screw thread and the arrangement of the screw thread formation are matched, and the length of the moving hole and the distance between the positioning claw and the locking block are matched with each other, which can be calculated by the existing mechanical structure and transmission principle, and how to realize the above-mentioned matching is explained too much here.
The working process of the invention is that the lower end water outlet of the flow-collecting flowmeter is connected with the upper end of the shell barrel of the invention and is communicated with the water inlet, then the flow-collecting flowmeter and the invention are put into the inner cavity pipeline of the water distributor as a whole, after the flow-collecting flowmeter and the invention are put into proper positions, the driving motor is started to drive the first transmission shaft and the second transmission shaft to rotate, so that the positioning claw is opened, the positioning claw is contacted with the inner cavity pipeline and clamped for positioning, and simultaneously the leather wristlet is opened to block the inner cavity pipeline. Then the liquid flow flows into the flow-collecting type flowmeter, the liquid flow which does not flow into the flow-collecting type flowmeter is blocked at the position of the leather wrist sleeve, the phenomenon that the flow of the part of the liquid flow is not measured by the flow-collecting type flowmeter due to the fact that the liquid flow continuously flows downwards is avoided, and therefore the flowing liquid flow blocked by the leather wrist can only finally flow into the flow-collecting type flowmeter through the water inlet, and the flow-collecting effect and the flow testing accuracy can be greatly improved through blocking the liquid flow; the measured liquid flow flows out from the flow-collecting type flowmeter and then enters the shell barrel through the water inlet, the liquid flow passes through a liquid flow channel around the driving motor and the first transmission shaft and then flows out through a liquid outlet and a moving hole which are arranged on the side wall of the shell barrel, namely, the liquid flow passes through a setting structure formed by a leather wrist sleeve from the inside of the testing sealing section, so that the inside of the testing sealing section is directly communicated with a cavity outside the shell barrel below the leather wrist sleeve setting structure, the smooth flow of the liquid flow is ensured under the condition that an external liquid flow channel is blocked through the establishment of an internal liquid flow channel, the pressure between the inside and the outside of the shell barrel is balanced, a complete liquid flow channel of a water distributor flow channel which passes through the leather wrist sleeve from the inside of the testing sealing section is established, the purposes of setting, positioning and liquid flow channel of the invention are realized, and the time difference of opening and sealing the leather wrist sleeve is realized through one driving motor while the overcurrent problem is solved And (4) orderly controlling.
The sealing adapter is sleeved above the jacking block on the second transmission shaft, the sealing adapter is in sealing connection with the inner wall of the shell barrel, and the second transmission shaft is sealed through the sealing adapter, namely the whole internal liquid flow channel is positioned above the sealing adapter and does not form any flow channel with a positioning device below, so that excessive contact between liquid flow and a part structure in the positioning device can be avoided.
The outer wall of the shell barrel between the pressing fixing ring and the pressing pushing sleeve is provided with a plurality of through holes, so that when liquid flows into the shell barrel, the liquid can also flow into a cavity formed by the inner wall when the leather wrist sleeve protrudes, and the liquid pressure between the inner wall and the outer wall of the leather wrist sleeve is balanced.
The clamping sleeve is sleeved on the locking block, the clamping sleeve is fixedly connected with the locking block through the connecting plate, the locking block can do linear motion along the axis of the clamping sleeve in the clamping sleeve but cannot do rotary motion around the axis of the clamping sleeve, and the clamping sleeve is used for positioning and guiding the locking block so that the locking block can only do translational motion under the action of a thread pair and cannot rotate along with the second transmission shaft.
The lower part of the cutting sleeve is connected with a mounting cap, the surface of the mounting cap is provided with a positioning groove, the bottom of the second transmission shaft is inserted into the positioning groove, and the mounting cap is used for axially positioning the second transmission shaft.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention relates to a flow-collecting test sealing section for a small-flow bridge-free eccentric water distributor in an oil field, which ensures that liquid flow smoothly flows downwards without being blocked at the test sealing section after the bridge-free eccentric water distributor is set by arranging a flow channel in the existing test sealing section;
2. the invention relates to a flow-collecting test sealing section for a small-flow bridge-free eccentric water distributor in an oil field, which solves the problem of overcurrent and realizes the orderly control of time difference between the opening and closing of a positioning claw and the opening of a sealing leather wrist sleeve by a driving motor;
3. the invention relates to a flow-collecting test sealing section of a small-flow eccentric water distributor without a bridge for an oil field, which ensures the effect and the accuracy of flow-collecting measurement, and simultaneously balances the pressure of a pipeline in an inner cavity of the water distributor so as to smoothly carry out flow measurement.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic view of the structure of the present invention in a non-operating state;
fig. 2 is a schematic diagram of the structural working state of the present invention.
Reference numbers and corresponding part names in the drawings:
the device comprises a shell barrel, a pressing fixing ring, a pressing pushing sleeve, a leather wrist sleeve, a first transmission shaft, a translational guide sleeve, a moving hole, a movable pin, a second transmission shaft, a connecting shaft sleeve, a sealing adapter, a pushing block, a locking block, a positioning claw, a clamping sleeve, a mounting cap and a driving motor, wherein the pressing pushing sleeve is 3, the leather wrist sleeve is 4, the first transmission shaft is 5, the translational guide sleeve is 6, the moving hole is 7, the movable pin is 8, the second transmission shaft is 9, the connecting shaft sleeve is 10, the sealing adapter is.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
As shown in figure 1, the collecting flow test sealing section for the small-flow bridge-free eccentric water distributor in the oil field comprises a test sealing section for the bridge-free eccentric water distributor, wherein a water inlet is formed in the top of the test sealing section, a water outlet is formed in the bottom of the test sealing section, and a liquid flow channel for communicating the water inlet with the water outlet is formed in the test sealing section.
According to the setting structure, the flow channel is arranged in the existing testing sealing section, so that the smooth downward flow of liquid flow is ensured without blocking at the testing sealing section after the eccentric water distributor without a bridge is set. The water distributor is a device used for injecting water into an oil well, the testing sealing section is used for plugging the water distributor when the injection flow rate of the water distributor is tested, when the current-collecting type measurement is carried out in the existing bridge type water distributor, in order to enable all the liquid flow flowing into the water distributor to completely flow through the current-collecting flow meter, the testing sealing section can plug the pipeline of the middle inner cavity of the water distributor, the liquid flow measured by the flow meter can be plugged above the testing sealing section and cannot continuously flow downwards, but the bridge type water distributor is provided with the bridge type pipeline, so that the plugged liquid flow can smoothly flow downwards from the bridge type pipeline and the situation of pressure increase in the well can not be generated; however, when an eccentric water distributor without a bridge is used, only a central internal cavity exists in the water distributor, so that after the existing testing sealing section is used for setting and plugging, liquid measured by the flow meter does not have a downward flowing channel, and therefore liquid flow is blocked at the position sealed by the testing sealing section and is difficult to pass through, so that the injected liquid overflows an inlet, and the flow is difficult to measure. The test sealing section of the invention is provided with a water inlet at the top and a water outlet at the bottom, a liquid flow channel communicating the water inlet and the water outlet is arranged inside the test sealing section, when the test sealing section flows into the central inner cavity pipeline of the water distributor, the flow-collecting flowmeter is positioned above the test sealing section, the water outlet of the flow-collecting flowmeter is connected with the water inlet on the test sealing section, and the test sealing section blocks the central inner cavity pipeline, so that all liquid flow entering the central inner cavity pipeline of the water distributor can pass through the flow-collecting flowmeter, the flow-collecting efficiency is improved, the liquid flow passing through the flow-collecting flowmeter flows from the water outlet of the flow-collecting flowmeter through the liquid flow channel of the test sealing section and finally flows out from the water outlet, the liquid flow can not be blocked at the test sealing section, the flow-collecting measurement effect and the measurement accuracy are ensured, so that the flow measurement can be smoothly performed. The seal test section may be a seal test section used in the existing flow test technology, and thus, a specific structure of the seal test section is not described herein.
Example 2
As shown in fig. 1 and 2, the invention relates to a flow-collecting test sealing section for a small-flow bridge-free eccentric water distributor in an oil field, which comprises a shell barrel 1, wherein the upper end of the shell barrel 1 is provided with a water inlet, the lower end of the shell barrel 1 is provided with a water outlet, the outer wall of the shell barrel 1 is sequentially sleeved with a pressing and fixing ring 2 and a pressing and pushing sleeve 3, a leather wrist sleeve 4 for setting is sleeved between the pressing and fixing ring 2 and the pressing and pushing sleeve 3, one end of the inner wall of the leather wrist sleeve 4 is connected with the outer wall of the pressing and fixing ring 2, the other end of the inner wall of the leather wrist sleeve 4 is connected with the outer wall of the pressing and pushing sleeve 3, the pressing and pushing sleeve 3 can move towards the pressing and fixing ring 2 along the axis under the driving of a driving mechanism, when the pressing and pushing sleeve 3 moves towards the pressing and fixing ring 2, the leather wrist sleeve 4 is extruded and deformed, the middle part of the leather wrist sleeve, the water outlet is arranged on the side wall of the bottom end of the shell cylinder body 1.
The invention pushes the compression pushing sleeve to move to the compression fixing ring in a translation way through the driving mechanism, and the compression fixing ring is fixed on the shell barrel, so that the compression pushing sleeve protrudes and opens the middle part of the leather wrist sleeve outwards in the translation process, the protruding edge part is tightly attached to the inner wall of a central inner cavity pipeline of the water distributor, the sealing test section is sealed in the water distributor, the compression pushing sleeve moves back to the original position in a reverse direction, the pressure of the leather wrist sleeve is removed, the leather wrist sleeve is pulled back to the original shape through the elasticity and gravity of the leather wrist sleeve, the opening and the closing of the leather wrist sleeve are realized in a circulating way, and the purposes of sealing and unsealing are achieved3A small flow per day provides assurance. The leather wristlet mentioned above is the same as the leather wristlet used in the sitting and sealing structure in the prior art in structure and material.
Example 3
As shown in fig. 1 and 2, the invention relates to a flow concentration test sealing section for an oil field small-flow eccentric water distributor without a bridge, on the basis of embodiment 2, a driving mechanism comprises a driving motor 17 arranged below a water inlet in a shell barrel 1, the lower end of the driving motor is connected with a first transmission shaft 5 coaxial with the shell barrel 1, a translational guide sleeve 6 is sleeved on the first transmission shaft 5 through a thread pair, a movable pin 8 is vertically connected on the outer wall of the translational guide sleeve 6, a strip-shaped moving hole 7 parallel to the axis of the shell barrel 1 is arranged on the outer wall of the shell barrel 1, the moving hole 7 is positioned between the translational guide sleeve 6 and a pressing pushing sleeve 3, the end part of the movable pin 8 extends out of the moving hole 7 and is flush with the outer wall of the pressing pushing sleeve 3, when the driving motor drives the first transmission shaft 5 to rotate around itself, the translational guide sleeve 6 and the movable pin 8 can be driven to do linear motion towards the direction of the pressing pushing sleeve, the movable pin 8 can move along the track of the moving hole 7 to contact with the end part of the pressing pushing sleeve 3 and push the pressing pushing sleeve 3 to move towards the pressing fixing ring 2 until the middle part of the leather wrist sleeve 4 protrudes to set and seal an inner cavity pipeline of the water distributor; a liquid flow channel is arranged between the driving motor, the first transmission shaft 5, the translational guide sleeve 6 and the inner wall of the shell barrel 1 and is communicated with the water inlet and the water outlet.
The driving structure of the invention firstly drives the first transmission shaft to rotate through the driving motor, the first transmission shaft drives the translational guide sleeve to move in a translational way towards the pressing pushing sleeve through the movement between the thread pairs, the pushing force is transmitted to the pressing pushing sleeve through the movement of the movable pin along the track of the moving hole to push the pressing pushing sleeve to move in a translational way to prop against the leather wrist sleeve, and the other side of the leather wrist sleeve is fixed on the shell barrel body through the pressing fixing ring, so the leather wrist sleeve is expanded under the driving of the driving motor to achieve the purpose of sealing the eccentric water distributor, and the procedure of withdrawing the leather wrist sleeve is to drive the first transmission shaft to operate in a reverse way to enable the leather wrist sleeve to be pulled back to the original form through the self elasticity and gravity.
Example 4
As shown in fig. 1 and 2, in the collecting test sealing section for a small-flow bridge-free eccentric water distributor in an oil field, on the basis of embodiment 3, a positioning device is connected below a shell cylinder 1, the positioning device comprises a second transmission shaft 9, the top end of the second transmission shaft 9 and the bottom end of a first transmission shaft 5 are coaxially sleeved together through a connecting shaft sleeve 10, a jacking block 12 and a locking block 13 are sequentially sleeved on the second transmission shaft 9, the jacking block 12 is fixedly connected with the bottom end of the shell cylinder 1, the locking block 13 is sleeved with the second transmission shaft 9 through a thread pair, one end of the jacking block 12, which is close to the locking block 13, is hinged with two positioning claws 14, the two positioning claws 14 are respectively located at two sides of the second transmission shaft 9, the second transmission shaft 9 is driven by the first transmission shaft 5 through the connecting shaft sleeve 10 to rotate around the axis of the second transmission shaft, so that the locking block 13 can make a linear motion in the direction far away from or close to the positioning claws 14, the positioning claws 14 are expanded or retracted to both sides of the second transmission shaft 9.
The positioning device enables the structure of the invention to be accurately positioned in the water distributor, ensures that the structure is always positioned in a central pipeline of the water distributor, and when the structure is in an initial state, the positioning claw is in a closed state, namely the locking block retracts the free end of the positioning claw to two sides of the second transmission shaft through the shape matched with the positioning claw, the hinged end of the positioning claw is provided with a convex block on the side wall close to the second transmission shaft, the thickness of the convex block is matched with the wall thickness of the locking block, the hinged part of the positioning claw is provided with a tension spring which enables the positioning claw to be opened outwards, the locking block moves towards the direction of the convex block to be attached to the convex block, then the free end of the positioning claw is in a retracted state through the combined action of the positioning claw and the jacking block, and the side wall close to the second transmission shaft is closely attached to the outer wall of. When the structure is used for positioning, the driving motor drives the second transmission shaft to rotate, the second transmission shaft thread pair drives the locking block to translate towards the direction far away from the positioning claw, the limiting effect on the convex block is released, then the positioning claw expands outwards under the action of the tension spring, namely the locking block is close to the positioning claw to be compressed and then retracted, and the positioning claw far away from the positioning claw automatically expands, so that the structure can be positioned in an eccentric water distributor pipeline without a bridge. Wherein, the screw thread pair between first transmission shaft and the translation uide bushing, the screw thread direction and the setting that the screw thread formed of the screw thread pair between second transmission shaft and the latch segment want the phase-match, the length of moving the hole simultaneously and the distance between positioning pawl and the latch segment also need to match each other for when driving motor drives first transmission shaft and second transmission shaft corotation, leather wrist cover and positioning pawl open simultaneously or withdraw simultaneously, can be through a driving motor like this, realize opening or withdrawing of leather wrist cover and positioning pawl simultaneously. The direction of the above-mentioned screw thread and the arrangement of the screw thread formation are matched, and the length of the moving hole and the distance between the positioning claw and the locking block are matched with each other, which can be calculated by the existing mechanical structure and transmission principle, and how to realize the above-mentioned matching is explained too much here.
The working process of the invention is that the lower end water outlet of the flow-collecting flowmeter is connected with the upper end of the shell barrel of the invention and is communicated with the water inlet, then the flow-collecting flowmeter and the invention are put into the inner cavity pipeline of the water distributor as a whole, after the flow-collecting flowmeter and the invention are put into proper positions, the driving motor is started to drive the first transmission shaft and the second transmission shaft to rotate, so that the positioning claw is opened, the positioning claw is contacted with the inner cavity pipeline and clamped for positioning, and simultaneously the leather wristlet is opened to block the inner cavity pipeline. Then the leather wristlet is plugged, liquid flow can only flow into the flow collection type flowmeter, and all liquid flows injected into the oil pipe from the ground are forced to flow into the inner cavity of the instrument through an inlet at the upper end of the instrument due to plugging of the leather wristlet, so that all the liquid flows are measured, and the flow collection effect and the flow testing precision can be greatly improved by plugging the liquid flows; the measured liquid flow flows out from the flow-collecting type flowmeter and then enters the shell barrel through the water inlet, the liquid flow passes through a liquid flow channel around the driving motor and the first transmission shaft and then flows out through a liquid outlet and a moving hole which are arranged on the side wall of the shell barrel, namely, the liquid flow passes through a setting structure formed by a leather wrist sleeve from the inside of the testing sealing section, so that the inside of the testing sealing section is directly communicated with a cavity outside the shell barrel below the leather wrist sleeve setting structure, the smooth flow of the liquid flow is ensured under the condition that an external liquid flow channel is blocked through the establishment of an internal liquid flow channel, the pressure between the inside and the outside of the shell barrel is balanced, a complete liquid flow channel of a water distributor flow channel which passes through the leather wrist sleeve from the inside of the testing sealing section is established, the purposes of setting, positioning and liquid flow channel of the invention are realized, and the time difference of opening and sealing the leather wrist sleeve is realized through one driving motor while the overcurrent problem is solved And (4) orderly controlling.
Preferably, a sealing adapter 11 is sleeved above the jacking block 12 on the second transmission shaft 9, and the sealing adapter 11 is connected with the inner wall of the shell barrel 1 in a sealing manner.
Preferably, a plurality of through holes are arranged on the outer wall of the shell barrel body 1 between the pressing fixing ring 2 and the pressing pushing sleeve 3.
Preferably, the locking block 13 is sleeved with a clamping sleeve 15, the clamping sleeve 15 is fixedly connected with the locking block 13 through a connecting plate, and the locking block 13 can move linearly along the axis of the clamping sleeve 15 in the clamping sleeve 15 but cannot move rotationally around the axis of the clamping sleeve 15.
Preferably, a mounting cap 16 is connected to the lower portion of the cutting sleeve 15, a positioning groove is formed in the surface of the mounting cap 16, and the bottom of the second transmission shaft 9 is inserted into the positioning groove.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A flow-collecting setting structure for a small-flow bridge-free eccentric water distributor in an oil field is characterized by comprising a test sealing section for testing the flow of the water distributor, wherein the top of the test sealing section is provided with a water inlet, the bottom of the test sealing section is provided with a water outlet, and a liquid flow channel for communicating the water inlet with the water outlet is arranged in the test sealing section; the test sealing section comprises a shell barrel body (1), a water inlet is formed in the upper end of the shell barrel body (1), a water outlet is formed in the lower end of the shell barrel body, a pressing and fixing ring (2) and a pressing and pushing sleeve (3) are sequentially sleeved on the outer wall of the shell barrel body (1), a leather wrist sleeve (4) for sitting is sleeved between the pressing and fixing ring (2) and the pressing and pushing sleeve (3), one end of the inner wall of the leather wrist sleeve (4) is connected with the outer wall of the pressing and fixing ring (2), the other end of the inner wall of the leather wrist sleeve (4) is connected with the outer wall of the pressing and pushing sleeve (3), the pressing and pushing sleeve (3) can move towards the pressing and fixing ring (2) along the axis under the driving of a driving mechanism, when the pressing and pushing sleeve (3) moves towards the pressing and fixing ring (2), the leather wrist sleeve (4) is extruded and deformed, the middle of the leather wrist sleeve (4), the water outlet is arranged on the side wall of the bottom end of the shell cylinder (1).
2. The flow-collecting setting structure for the small-flow bridge-free eccentric water distributor in the oil field according to claim 1 is characterized in that the driving mechanism comprises a driving motor (17) arranged below a water inlet in the shell barrel (1), the lower end of the driving motor (17) is connected with a first transmission shaft (5) coaxial with the shell barrel (1), a translational guide sleeve (6) is sleeved on the first transmission shaft (5) through a thread pair, a movable pin (8) is vertically connected on the outer wall of the translational guide sleeve (6), a bar-shaped moving hole (7) parallel to the axis of the shell barrel (1) is formed in the outer wall of the shell barrel (1), the moving hole (7) is positioned between the translational guide sleeve (6) and the pressing push sleeve (3), the end part of the movable pin (8) extends out of the moving hole (7) and is flush with the outer wall of the pressing push sleeve (3), and when the driving motor drives the first transmission shaft (5) to rotate around the driving motor, the translational guide sleeve (6) and the movable pin (8) can be driven to do linear motion towards the direction of the pressing pushing sleeve (3), the movable pin (8) can move along the track of the moving hole (7) to be contacted with the end part of the pressing pushing sleeve (3) and push the pressing pushing sleeve (3) to move towards the pressing fixing ring (2) until the middle part of the leather wrist sleeve (4) protrudes to seal the inner cavity pipeline of the water distributor; a liquid flow channel is arranged between the driving motor, the first transmission shaft (5), the translational guide sleeve (6) and the inner wall of the shell barrel body (1) and is communicated with the water inlet and the water outlet.
3. The collecting flow setting structure for the small-flow bridge-free eccentric water distributor in the oil field according to claim 2 is characterized in that a positioning device is connected below the shell cylinder (1), the positioning device comprises a second transmission shaft (9), the top end of the second transmission shaft (9) is coaxially sleeved with the bottom end of the first transmission shaft (5) through a connecting shaft sleeve (10), a tightening block (12) and a locking block (13) are sequentially sleeved on the second transmission shaft (9), the tightening block (12) is fixedly connected with the bottom end of the shell cylinder (1), the locking block (13) is sleeved with the second transmission shaft (9) through a thread pair, two positioning claws (14) are hinged to one end, close to the locking block (13), of the tightening block (12), the two positioning claws (14) are respectively located on two sides of the second transmission shaft (9), the second transmission shaft (9) is driven by the first transmission shaft (5) through the connecting shaft sleeve (10) to rotate around the axis of the second transmission shaft, the locking block (13) can move linearly towards the direction far away from or close to the positioning claw (14), so that the positioning claw (14) is opened or retracted towards two sides of the second transmission shaft (9).
4. The flow-collecting setting structure for the small-flow bridge-free eccentric water distributor in the oil field is characterized in that a sealing adapter (11) is sleeved above a jacking block (12) on the second transmission shaft (9), and the sealing adapter (11) is in sealing connection with the inner wall of the shell barrel (1).
5. The flow-collecting setting structure for the small-flow bridge-free eccentric water distributor in the oil field is characterized in that a plurality of through holes are formed in the outer wall of the shell cylinder (1) between the pressing and fixing ring (2) and the pressing and pushing sleeve (3).
6. The flow collecting and setting structure for the small-flow bridge-free eccentric water distributor in the oil field according to claim 3 is characterized in that a clamping sleeve (15) is sleeved outside the locking block (13), the clamping sleeve (15) is fixedly connected with the locking block (13) through a connecting plate, and the locking block (13) can move linearly along the axis of the clamping sleeve (15) in the clamping sleeve (15) but cannot move rotationally around the axis of the clamping sleeve (15).
7. The flow-collecting setting structure for the small-flow bridge-free eccentric water distributor in the oil field is characterized in that a mounting cap (16) is connected below the cutting sleeve (15), a positioning groove is formed in the surface of the mounting cap (16), and the bottom of the second transmission shaft (9) is inserted into the positioning groove.
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| CN109386249B (en) * | 2018-12-12 | 2023-05-16 | 四川省科学城久利电子有限责任公司 | Full current collector for oil pipe of oil field |
| CN113123745B (en) * | 2019-12-31 | 2022-07-12 | 中石化石油工程技术服务有限公司 | Setting device for window sidetracking |
| CN111322041A (en) * | 2020-04-14 | 2020-06-23 | 四川省科学城久利电子有限责任公司 | Water distribution device for oil field |
| CN114275923A (en) * | 2022-01-26 | 2022-04-05 | 淮安顺西环保科技有限公司 | Industrial sewage treatment ultrafiltration membrane device convenient to replace |
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