CN216197929U - Four-position five-way positive and negative sand washing reversing valve with horizontally-arranged valve cores - Google Patents
Four-position five-way positive and negative sand washing reversing valve with horizontally-arranged valve cores Download PDFInfo
- Publication number
- CN216197929U CN216197929U CN202122465937.4U CN202122465937U CN216197929U CN 216197929 U CN216197929 U CN 216197929U CN 202122465937 U CN202122465937 U CN 202122465937U CN 216197929 U CN216197929 U CN 216197929U
- Authority
- CN
- China
- Prior art keywords
- sand washing
- water
- valve core
- sand
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to a four-position five-way positive and negative sand washing reversing valve with horizontally-arranged valve cores, which comprises a shell and the valve cores and is characterized in that: the shell is cylindrical, four groups of water through holes are formed in the periphery of the shell around the center of the shell, each group of water through holes consists of a water through hole I and a water through hole II which are arranged at intervals along the axial direction of the shell, the three groups of water through holes are respectively connected through a three-way pipe to form an auxiliary water inlet/outlet F, an auxiliary water inlet/outlet T and an auxiliary water inlet/outlet J, the water through holes I of the rest group of water through holes are sand washing liquid inlets, and the water through holes II are mortar outlets; the number of the valve cores is two, namely a valve core I and a valve core II, and the valve core I and the valve core II are arranged at two ends of the shell in an embedded mode. The utility model solves the problems of easy sand blocking and sand burying of the sand washing pipe column during the sand washing operation of the existing oil well, greatly reduces the potential safety hazard and obviously improves the sand washing efficiency.
Description
Technical Field
The utility model relates to the technical field of sand washing operation of oil wells, in particular to a four-position five-way positive and negative sand washing reversing valve with horizontally-arranged valve cores, which is suitable for continuous positive and negative sand washing operation of oil wells.
Background
During the normal production process of an oil well, due to the scouring of fluid and the change of formation stress, sand grains in a cemented and unconsolidated sandstone formation enter a casing along with the flow of fluid, some sand grains are deposited in the casing along with the fluid flow to the ground, and the sand grains in the casing are accumulated more and more along with the time, so that the normal production of the oil well is influenced. Along with the fact that various large oil fields in China enter the middle and later periods of exploitation in succession, sand production of oil wells becomes an increasingly severe problem, and sand washing operation of the oil wells becomes a necessary means for recovering the production energy of the oil wells.
At present, the sand washing operation of the oil field and the oil well usually adopts a conventional positive sand washing or back sand washing mode. The positive sand flushing mode has strong impact force but weak sand carrying capacity, and has sand blocking and sand burying sand flushing pipe column risk factors; the sand-back flushing mode has strong sand-carrying capacity but weak impact force, and has sand-blocking sand-flushing pipe column danger factors. The single positive flushing or back flushing has the potential safety hazards that the sand flushing pipe column is blocked by sand, blocked by sand and buried by sand.
The conventional sand washing operation of the oil well can not realize the reversing of positive sand washing and reverse sand washing, and meanwhile, the pump needs to be stopped when a single sand washing pipe is replaced in the conventional sand washing operation of the oil well. Therefore, the liquid level in the shaft is lowered, suspended sand is accumulated, and potential safety hazards of sand washing pipe column blockage and sand burying exist. Disclosure of Invention
The utility model aims to provide a four-position five-way continuous positive and negative sand washing reversing valve which is simple in structure and reliable to use, solves the problems that a sand washing pipe column is easy to sand block and sand bury during sand washing operation of an existing oil well, greatly reduces potential safety hazards, and meanwhile remarkably improves sand washing efficiency.
The technical scheme of the utility model is as follows:
the utility model provides a positive and negative sand washing switching-over valve of four-position five-way of horizontal opposition case, includes casing and case, and its technical essential is: the shell is cylindrical, four groups of water through holes are formed in the periphery of the shell around the center of the shell, each group of water through holes consists of a water through hole I and a water through hole II which are arranged at intervals along the axial direction of the shell, the three groups of water through holes are respectively connected through a three-way pipe to form an auxiliary water inlet/outlet F, an auxiliary water inlet/outlet T and an auxiliary water inlet/outlet J, the water through holes I of the rest group of water through holes are sand washing liquid inlets, and the water through holes II are mortar outlets; the sand washing device comprises a shell, a sand washing liquid inlet, a sand washing liquid outlet, a sand washing liquid inlet, a sand washing liquid outlet, a sand washing liquid inlet, a sand washing liquid outlet, a reversing hole I, a sand washing liquid outlet, a sand washing liquid inlet, a sand washing liquid outlet and a sand washing liquid outlet.
According to the four-position five-way continuous positive and negative sand washing reversing valve, bearings are arranged between the inner wall of the shell and the valve core I and the valve core II respectively, two ends of the shell are connected with the pressing covers respectively, rotating shafts are arranged at the centers of the end faces, facing the outer side of the shell, of the valve core I and the valve core II respectively, and the bearings are arranged between the centers of the pressing covers and the rotating shafts.
According to the four-position five-way continuous positive and negative sand washing reversing valve, the rotating shafts of the valve core I and the valve core II are provided with the radial supporting rods, the gland is provided with the front limiting clamping column and the rear limiting clamping column for limiting the rotating stroke of the radial supporting rods, and the middle indicating standard column located in the middle of the rotating stroke of the radial supporting rods.
In the four-position five-way continuous positive and negative sand washing reversing valve, in a working state, the fan-shaped channel of the valve core I corresponds to the sand washing liquid inlet, and the fan-shaped channel of the valve core II corresponds to the mortar outlet; when the fan-shaped channel of the valve core I corresponds to the sand washing liquid inlet, only one reversing hole I is communicated with the corresponding water through hole I; when the fan-shaped channel of the valve core II corresponds to the mortar outlet, only one reversing hole II is communicated with the corresponding water through hole II; the same group of the water through holes I and the water through holes II are not communicated with the inner cavity of the valve core at the same time.
The utility model has the beneficial effects that:
through setting up two case and casing cooperations, make the casing have the sand washing liquid entry, the mortar export, supplementary inlet outlet F, supplementary inlet outlet T and supplementary inlet outlet J form the five-way structure, under the condition that need not stop the pump, can realize in succession just washing sand and the work in turn of recoil sand, just wash and trade single operation, the recoil trades the quadbit operating condition of single operation, the easy sand blocking of sand washing tubular column during the sand washing operation of having solved current oil well, the problem of sand burying, the condition of oppression pump can not appear, greatly reduced the potential safety hazard, show simultaneously and improve sand washing efficiency, sand washing speed can promote the triple of conventional sand washing speed.
The method comprises the following steps:
1. the conventional sand washing needs to stop the pump and continue to connect a single joint, if the time is longer, the liquid level in the shaft drops, the suspended sand is accumulated, and the risk of sand blocking the pipe column exists. In particular, the sand blocking is easily caused by the conventional sand washing of the horizontal well. During the construction of the utility model, the pump does not need to be stopped, the sand washing liquid keeps continuous, the fluid in the well carries sand to continuously return upwards, the sand carrying speed is improved, the time for connecting a single joint and needing to circularly wash the well is saved, and the sand washing operation speed is greatly improved. According to the conservative speed on site, after the sand washing pipe column is put down from the connection of a single joint, the time is less than 10 minutes when the sand washing pipe column is washed once one single joint is washed, the operation is continuous, and the efficiency is high.
2. The positive and negative sand washing mode is selected at will, if the pipe string meets the resistance under the condition of back sand washing, the positive sand washing mode can be converted, the impact force is increased, and after the resistance passes through, the back sand washing mode is converted again, and the construction is continued.
3. For a horizontal well with serious stratum depletion and incapability of establishing sand washing liquid circulation, the difficult problem that the sand washing liquid cannot return can be effectively solved by connecting a reflection flow pen point, adding foam, matching a nitrogen vehicle and the like, sand washing construction of the leaked horizontal well is completed, and the productivity of an oil well is recovered. Meanwhile, the method is also suitable for construction processes of continuous drilling of cement and the like of the screw pump, and can keep the continuous backflow of the well entering fluid with impurities and reduce the pump blocking probability.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of another angle of the present invention;
FIG. 3 is a schematic view of an exploded structure of the present invention;
fig. 4 is a schematic diagram of the operating principle of two opposed spools of the present invention.
In the figure: 1. the hydraulic sand washing machine comprises a shell, a gland, a water hole II, an auxiliary water inlet and outlet F, a water hole I, an auxiliary water inlet and outlet J, a sand washing liquid inlet, a mortar outlet, an auxiliary water inlet and outlet T, a front limiting clamping column, a rotating shaft, a middle indicating standard column 12, a radial support rod 13, a rear limiting clamping column 14, a valve core II, a valve core 16, a reversing hole II, a reversing hole 17, a fan-shaped channel 18, a valve core I, a reversing hole 19, a reversing hole I, a reversing hole 20 and a fan-shaped channel 20.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
As shown in figures 1-4, the four-position five-way continuous positive and negative sand flushing reversing valve comprises a shell 1 and a valve core.
The shell 1 is cylindrical, four groups of water through holes are formed in the periphery of the shell 1 around the center of the shell, and each group of water through holes consists of a water through hole I5 and a water through hole II 3 which are arranged along the axial direction of the shell 1 at intervals. The three groups of water through holes are respectively connected by utilizing a three-way pipe to form an auxiliary water inlet and outlet F4, an auxiliary water inlet and outlet T9 and an auxiliary water inlet and outlet J6, the water through hole I of the rest group of water through holes is a sand washing liquid inlet 7, and the water through hole II is a mortar outlet 8. The outer side of the sand washing liquid inlet 7 is independently connected with a sand washing liquid inlet pipeline, and the outer side of the mortar outlet 8 is independently connected with a mortar outlet pipeline.
The number of the valve cores is two, the two valve cores are respectively a valve core I18 and a valve core II 15, and the valve core I18 and the valve core II 15 are oppositely arranged at two ends of the inner part of the shell 1. The valve core I18 covers the positions of the water through holes I5 of all the groups of water through holes in the axial direction of the shell, and the valve core II 15 covers the positions of the water through holes II 3 of all the groups of water through holes in the axial direction of the shell. The two valve cores are of hollow structures, and the outer peripheral surface of the valve core I18 is provided with a fan-shaped channel 20 corresponding to the sand washing liquid inlet 7 and reversing holes I19 corresponding to the other three water through holes I5 one by one. The outer peripheral surface of the valve core II 15 is provided with a fan-shaped channel 17 corresponding to the mortar outlet 8 and reversing holes II 16 corresponding to the other three water through holes II 3 one by one.
In the embodiment, the aperture of the reversing hole I19 of the valve core I18 is 50 mm; the aperture of the reversing hole II 16 of the valve core II 15 is 50 mm. The diameters of the water through holes I5 and the water through holes II 3 corresponding to the reversing holes I19 and the reversing holes II 16 are 50 mm. The aperture of the sand washing liquid inlet 7 and the aperture of the mortar outlet 8 are 50 mm. The widths of the fan-shaped channels 20 and 17 of the valve core I18 and the valve core II 15 are 50mm, and the arc center angle is 83 degrees.
Bearings are arranged between the inner wall of the shell 1 and the valve core I18 and the valve core II 15 respectively, two ends of the shell 1 are connected with pressing covers 2 respectively, the centers of end faces, facing the outer side of the shell, of the valve core I18 and the valve core II 15 are provided with rotating shafts 11 respectively, and bearings are arranged between the centers of the pressing covers 2 and the rotating shafts 11. After the rotating shaft 11 is driven, the two valve cores can rotate in the shell 1 along with the rotating shaft 11. The rotary shaft 11 of the valve core I18 and the valve core II 15 is provided with a radial strut 13, and the gland 2 is provided with a front limiting clamping column 10 and a rear limiting clamping column 14 which limit the rotation stroke of the radial strut 13 and a middle indicating standard column 12 which is positioned in the middle of the rotation stroke of the radial strut 13. The included angle between the connecting lines of the front and rear limiting clamping columns 10 and 14 and the center of the gland 2 is 60 degrees, and the included angle between the middle indicating standard column 12 and the connecting line of the front limiting clamping column 10 and the center of the gland 2 is 30 degrees.
In the working state, the fan-shaped channel 20 of the valve core I18 corresponds to the sand washing liquid inlet 7, and the fan-shaped channel 17 of the valve core II 15 corresponds to the mortar outlet 8; when the fan-shaped channel 20 of the valve core I18 corresponds to the sand washing liquid inlet 7, only one reversing hole I19 is communicated with the corresponding water through hole I5; when the fan-shaped channel 17 of the valve core II 15 corresponds to the mortar outlet 8, only one reversing hole II 16 is communicated with the corresponding water through hole II 3; the same group of the water through holes I5 and the water through holes II 3 are not communicated with the inner cavity of the valve core at the same time.
The working process is as follows:
referring to fig. 4, flow 1, positive sand wash status.
The valve core I18 is positioned at a position F, namely the fan-shaped channel 20 of the valve core I18 corresponds to the sand washing liquid inlet 7, and the auxiliary water inlet/outlet F4 of the shell 1 is only communicated with one reversing hole I19 of the valve core I18; the valve core II 15 is in a through position T, namely the fan-shaped channel 17 of the valve core II 15 corresponds to the mortar outlet 8, and the auxiliary water inlet and outlet T9 of the shell 1 is communicated with only one reversing hole II 16 of the valve core II 15.
The sand washing liquid enters the valve core I18 from the sand washing liquid inlet 7, enters the sand washing pipe through the auxiliary water inlet and outlet F4, disperses settled sand at the bottom of the well, then the mixed mortar ascends through the annular space between the sand washing pipe and the sleeve under the action of pressure, finally enters the valve core II 15 through the auxiliary water inlet and outlet T9, and is led out of the ground through the mortar outlet 8.
And 2, converting positive sand washing into reverse sand washing.
The valve core I18 is rotated counterclockwise by 30 degrees, the valve core I18 is turned from the F position to the T position, the fan-shaped channel 20 of the valve core I18 still corresponds to the sand washing liquid inlet 7, and the auxiliary water inlet and outlet T9 of the shell 1 is communicated with the other reversing hole I19 of the valve core I18; and the valve core II 15 is rotated counterclockwise by 30 degrees, the valve core II 15 is turned from the open T position to the open F position, the fan-shaped channel 17 of the valve core II 15 still corresponds to the mortar outlet 8, and the auxiliary water inlet/outlet F4 of the shell 1 is communicated with the other reversing hole II 16 of the valve core II 15.
The sand washing liquid enters the valve core I18 from the sand washing liquid inlet 7, enters an annular space between the sand washing pipe and the sleeve through the auxiliary water inlet and outlet T9, disperses settled sand at the bottom of the well, then the mixed mortar ascends through the sand washing pipe under the action of pressure, finally enters the valve core II 15 through the auxiliary water inlet and outlet F4, and is led out of the ground through the mortar outlet 8.
And 3, converting the back flushing sand into the positive flushing sand. The operation is reciprocal to that of the process 2.
And 4, carrying out positive sand washing and single root changing operation.
The valve core I18 is rotated clockwise for 30 degrees, the valve core I18 is turned from the F position to the J position, the fan-shaped channel 20 of the valve core I18 still corresponds to the sand washing liquid inlet 7, and the auxiliary water inlet and outlet J6 of the shell 1 is communicated with the other reversing hole I19 of the valve core I18; and the valve core II 18 is at the T position, and refer to the flow 1.
The sand washing liquid enters the valve core I18 from the sand washing liquid inlet 7, enters the sand washing pipe through the auxiliary water inlet and outlet J6, disperses settled sand at the bottom of the well, then the mixed mortar ascends through the annular space between the sand washing pipe and the sleeve under the action of pressure, finally enters the valve core II 15 through the auxiliary water inlet and outlet T9, and is led out of the ground through the mortar outlet 8. In the process, the auxiliary water inlet/outlet F4 is not used, under the protection of safety measures, the top end of the sand washing pipe is connected with another sand washing pipe, and the sand washing pipe is lowered to continue sand washing.
And 5, replacing a single sand by positive sand washing, and returning to positive sand washing after the replacement is finished. The process is the reverse of the process 4.
And 6, back flushing sand and changing single joint.
The valve core I18 is at the open T position, referring to the flow 2, the valve core II 15 is rotated, and the valve core II 15 rotates anticlockwise by 30 degrees, so that the valve core II 15 is turned from the open F position to the open J position.
The sand washing liquid enters the valve core I18 from the sand washing liquid inlet 7, enters an annular space between the sand washing pipe and the sleeve through the auxiliary water inlet and outlet T9, disperses settled sand at the bottom of the well, then the mixed mortar ascends through the sand washing pipe under the action of pressure, finally enters the valve core II 15 through the auxiliary water inlet and outlet J6, and is led out of the ground through the mortar outlet 8. In the process, the auxiliary water inlet/outlet F4 is not used, under the protection of safety measures, the top end of the sand washing pipe is connected with another sand washing pipe, and the sand washing pipe is lowered to continue sand washing.
And 7, replacing the single sand by back flushing, and returning back flushing sand after replacing is finished. The process is the reverse of the process 6.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the utility model are also within the scope of the present patent.
Claims (4)
1. The utility model provides a positive and negative sand washing switching-over valve of four-position five-way of horizontal opposition case, includes casing and case, its characterized in that: the shell is cylindrical, four groups of water through holes are formed in the periphery of the shell around the center of the shell, each group of water through holes consists of a water through hole I and a water through hole II which are arranged at intervals along the axial direction of the shell, the three groups of water through holes are respectively connected through a three-way pipe to form an auxiliary water inlet/outlet F, an auxiliary water inlet/outlet T and an auxiliary water inlet/outlet J, the water through holes I of the rest group of water through holes are sand washing liquid inlets, and the water through holes II are mortar outlets; the sand washing device comprises a shell, a sand washing liquid inlet, a sand washing liquid outlet, a sand washing liquid inlet, a sand washing liquid outlet, a sand washing liquid inlet, a sand washing liquid outlet, a reversing hole I, a sand washing liquid outlet, a sand washing liquid inlet, a sand washing liquid outlet and a sand washing liquid outlet.
2. The four-position five-way positive and negative sand flushing reversing valve according to claim 1, characterized in that: the bearing is arranged between the inner wall of the shell and the valve core I and the valve core II respectively, two ends of the shell are connected with the pressing covers respectively, the centers of the end faces, facing the outer side of the shell, of the valve core I and the valve core II are provided with rotating shafts respectively, and the bearing is arranged between the center of the pressing cover and the rotating shafts.
3. The four-position five-way positive and negative sand flushing reversing valve according to claim 2, characterized in that: the rotating shafts of the valve core I and the valve core II are provided with radial supporting rods, and the gland is provided with front and rear limiting clamping columns for limiting the rotating stroke of the radial supporting rods and a middle position indicating standard column positioned in the middle of the rotating stroke of the radial supporting rods.
4. The four-position five-way positive and negative sand flushing reversing valve according to claim 1, characterized in that: in the working state, the fan-shaped channel of the valve core I corresponds to the sand washing liquid inlet, and the fan-shaped channel of the valve core II corresponds to the mortar outlet; when the fan-shaped channel of the valve core I corresponds to the sand washing liquid inlet, only one reversing hole I is communicated with the corresponding water through hole I; when the fan-shaped channel of the valve core II corresponds to the mortar outlet, only one reversing hole II is communicated with the corresponding water through hole II; the same group of the water through holes I and the water through holes II are not communicated with the inner cavity of the valve core at the same time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122465937.4U CN216197929U (en) | 2021-10-13 | 2021-10-13 | Four-position five-way positive and negative sand washing reversing valve with horizontally-arranged valve cores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122465937.4U CN216197929U (en) | 2021-10-13 | 2021-10-13 | Four-position five-way positive and negative sand washing reversing valve with horizontally-arranged valve cores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216197929U true CN216197929U (en) | 2022-04-05 |
Family
ID=80865421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122465937.4U Active CN216197929U (en) | 2021-10-13 | 2021-10-13 | Four-position five-way positive and negative sand washing reversing valve with horizontally-arranged valve cores |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216197929U (en) |
-
2021
- 2021-10-13 CN CN202122465937.4U patent/CN216197929U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202007640U (en) | Fractured formation corer driven by spiral drilling rig | |
| CN200940456Y (en) | Spiral flow sand washing device for horizontal well | |
| CN106437570A (en) | Drilling type continuous sand blasting device | |
| CN102767335B (en) | A kind of improved multifunctional combined drill | |
| CN206267815U (en) | Drilling type continuous sand flushing device | |
| CN113153156B (en) | Hydraulic combined mechanical hole repairing device and method | |
| CN204691658U (en) | rotary drilling rig down-hole hammer construction special working device | |
| CN112664197A (en) | Shaft excavation device, large-diameter shaft heading machine and construction method | |
| CN104652437A (en) | Hole cleaning device for spun-digging pile hole and construction method thereof | |
| CN101307674A (en) | Long life spiral transduction apparatus | |
| CN205089245U (en) | Side direction efflux formula detritus bed removing tool | |
| CN216197929U (en) | Four-position five-way positive and negative sand washing reversing valve with horizontally-arranged valve cores | |
| CN106677224B (en) | The milling wheel brush wall device of pipe fitting is latched for diaphram wall | |
| CN211974915U (en) | Circulating rotational flow washing tool in large-inclination oil well | |
| CN104727744A (en) | Working device special for construction of dive-hole hammer of rotary drilling jig | |
| CN114856596A (en) | Slurry balance push bench | |
| CN213775283U (en) | Grinding and milling spiral sand washing device | |
| CN212563096U (en) | Rock reamer of integral type | |
| CN216197993U (en) | Four-position five-way positive and negative sand washing reversing valve with axial in-line valve core | |
| CN101975159B (en) | Double-stator single-rotor screw motor consubstantial pump | |
| CN110644959B (en) | Eight-in-one control device for slowing down stratum extrusion casing wellhead during injection and extraction alternate operation | |
| CN113700522A (en) | Gas extraction process method of lower screen pipe while drilling and matched lower screen pipe drill bit | |
| CN103104202B (en) | For removing the pumping system revolving and dig the soft formation soil body bottom stake holes | |
| CN114293934B (en) | Sand washing pipe column and sand washing process | |
| CN202249849U (en) | Underground pressurizing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A four position five way forward and backward sand flushing directional valve with horizontally opposed valve core Effective date of registration: 20230926 Granted publication date: 20220405 Pledgee: Panjin financing guarantee Group Co.,Ltd. Pledgor: Liaoning Jinxing Petroleum Group Co.,Ltd. Registration number: Y2023980059357 |