CN216484373U - Shale hydraulic fracturing experimental apparatus - Google Patents
Shale hydraulic fracturing experimental apparatus Download PDFInfo
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- CN216484373U CN216484373U CN202122631971.4U CN202122631971U CN216484373U CN 216484373 U CN216484373 U CN 216484373U CN 202122631971 U CN202122631971 U CN 202122631971U CN 216484373 U CN216484373 U CN 216484373U
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Abstract
The utility model relates to the technical field of hydraulic fracturing experiments and discloses a shale hydraulic fracturing experiment device which comprises a connecting cylinder, wherein an inserting base is fixedly arranged at the top end of the connecting cylinder, a feeding pipe is inserted into the top of the inserting base, an inserting pipe is fixedly arranged at the bottom end of the feeding pipe, a fixing plate is fixedly arranged at the bottom end of the connecting cylinder, partition plates are fixedly arranged at the upper end and the lower end of the connecting cylinder, a connecting plate is fixedly arranged in the connecting cylinder, a closed cylinder is fixedly arranged in the connecting plate, an inner shaft is fixedly arranged in the closed cylinder, a sleeve ring is sleeved on the outer side of the inner shaft, telescopic rods are fixedly arranged on the left side and the right side of the sleeve ring, closed plates are fixedly arranged at the upper end and the lower end of the closed cylinder, an inserting rod is inserted into the closed plate, a sealing plug is fixedly arranged at one end of the inserting rod, which is far away from the closed cylinder, and pressure is controlled through a bidirectional one-way valve, the pressure generated when the fracturing fluid flows back can be reduced while the fracturing fluid is prevented from leaking.
Description
Technical Field
The utility model relates to the technical field of hydraulic fracturing experiments, in particular to a shale hydraulic fracturing experiment device.
Background
The shale hydraulic fracturing experiment is an effective means for knowing the fracture fracturing mechanism, and the experiment can be used for simulating hydraulic fracturing by simulating the situation of a field in reality, so that problems can be found in advance, and the problems possibly occurring in actual operation can be reduced as much as possible.
When the experiment, need inject fracturing fluid into the soil, when injecting fracturing fluid, because pressure is great, need a valve of injecting into the fracturing fluid usefulness, prevent that fracturing fluid from spilling at the in-process of injecting into, but because pressure is great, to the in-process of sealing the valve after injecting into, fracturing fluid can flow outward, there is the condition that fracturing fluid spills, simultaneously after injecting into, the pressure of injection pipeline is withdrawn from suddenly, fracturing fluid in the soil can be because hydraulic effect, cause the condition that fracturing fluid flows back, the pressure of sudden increase can cause the harm to the valve, cause the unstability of equipment fixing.
Therefore, the demand for high-reliability products is urgent, and therefore the shale hydraulic fracturing experimental device has the advantages of preventing the fracturing fluid from leaking and simultaneously buffering the backflow fracturing fluid, and the problems are solved.
SUMMERY OF THE UTILITY MODEL
In order to prevent the leakage of the fracturing fluid and simultaneously buffer the backflow fracturing fluid, the utility model provides the following technical scheme: the utility model provides a shale hydraulic fracturing experimental apparatus, includes the connecting cylinder, connecting cylinder top fixed mounting has the bayonet socket, the bayonet socket top is pegged graft there is the pan feeding pipe, pan feeding pipe bottom fixed mounting has the intubate, connecting cylinder bottom fixed mounting has the fixed plate, fixed plate top fixed mounting has the fixed pin, the equal fixed mounting in upper and lower both ends of connecting cylinder has the baffle, the inside fixed mounting of connecting cylinder has the connecting plate, the inside fixed mounting of connecting plate has a closed section of thick bamboo, the interior axle of inside fixed mounting of a closed section of thick bamboo, the interior axle outside has cup jointed the lantern ring, the equal fixed mounting in the left and right sides of the lantern ring has the telescopic link, the equal fixed mounting in upper and lower both ends of a closed section of thick bamboo has the seal, the inside inserted bar of pegging graft of closed section of thick bamboo, the one end fixed mounting that the closed section of thick bamboo was kept away from to the inserted bar has the sealing plug.
Preferably, the number of the inserting rods is two, the inserting rods are an upper rod and a lower rod respectively, and the bottom end of the upper rod is movably connected with the left end of the left side telescopic rod.
As an optimization, the sliding groove is formed in the top of the lower rod, the right end of the telescopic rod on the right side is connected to the inside of the sliding groove in a sliding mode, when the upper rod descends, the telescopic rod on the left side drives the lantern ring to rotate, so that the telescopic rod on the right side is driven to rotate, the telescopic rod is used for pushing the lower rod to ascend, and the upper rod drives the sealing plug below the upper rod to ascend.
Preferably, a positioning rod is fixedly mounted on one side, close to the sealing plate, of the sealing plug, the positioning rod is inserted into the sealing plate, a compression spring is fixedly mounted between the sealing plate and the sealing plug, the sealing plug can be ejected out through the compression spring, and therefore the sealing plug is ejected into the material inlet and outlet, and the partition plate is closed.
As optimization, the inside slot of having seted up of closed plate, the inside fixed mounting of slot has the closed ring, inserted bar and locating lever are all pegged graft inside the slot, utilize the closed ring to prevent that fracturing fluid from flowing into in the closed section of thick bamboo.
As optimization, the inside discharge gate that begins of baffle, the shape and the sealing plug looks adaptation of discharge gate, the sealing plug scarf joint is inside the discharge gate, the sealing plug becomes trapezoidal, and one side that has the inserted bar is long limit, when the sealing plug embedding business turn over material mouthful in, can seal the baffle, prevents that fracturing fluid from outflowing, because the sealing plug is trapezoidal, when fracturing fluid from the baffle outside to the connecting cylinder internal pressure, can follow the discharge gate with the sealing plug ejecting, when fracturing fluid from the baffle inboard to the connecting cylinder external pressure, the sealing plug can be blocked in the discharge gate, can not be ejecting.
Preferably, the connecting plate is internally provided with a through hole, the insertion tube and the sealing plug are coaxial, and when the feeding tube is inserted into the insertion seat, the insertion tube moves downwards so as to eject the sealing plug above the insertion tube out of the discharge hole.
The utility model has the beneficial effects that:
the shale hydraulic fracturing experimental device is characterized in that when a feeding pipe is installed, when the feeding pipe is embedded into an inserting base, an inserting pipe descends, the inserting pipe pushes an upper sealing plug to descend, the upper sealing plug pushes an upper rod to descend, a telescopic rod on the left side drives a lantern ring to rotate, so that a telescopic rod on the right side is driven to rotate, the lower rod is pushed to ascend by the telescopic rod, the upper rod drives a lower sealing plug to ascend, a discharge port on the lower side is opened, fracturing fluid in the feeding pipe can smoothly flow downwards through a connecting cylinder, and the injection of the fracturing fluid cannot be hindered;
after the injection is completed, the feeding pipe is pulled out, the compression spring ejects the sealing plug out, the sealing plug is embedded into the feeding and discharging port again, the connecting cylinder is closed, fracturing fluid is stored in the connecting cylinder, the fracturing fluid is pressed upwards from the bottom of the connecting cylinder due to high hydraulic pressure during the injection, the sealing plug below the connecting cylinder is jacked up, the fracturing fluid flows into the connecting cylinder, and the fracturing fluid stored in the connecting cylinder can play a primary buffering role, so that the damage of equipment can be effectively prevented, and the pressure for fixing the equipment is also reduced;
when the sealing plug of below rose, the lower beam moved up, and the telescopic link right-hand member on right side slides in the spout, and the telescopic link can not rotate for left telescopic link can not be driven rotatory, and the sealing plug of top can not move down, simultaneously because the shape of top sealing plug, the sealing plug of top can not by upwards pushing up, prevents that fracturing fluid is excessive, reduces fracturing fluid and leaks outward and cause pollution and extravagant condition to take place.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of a connector barrel of the present invention;
fig. 3 is an enlarged schematic view of the telescopic rod at a position a in fig. 2 of the present invention.
In the figure: 1. a connecting cylinder; 2. a socket; 3. a feeding pipe; 4. inserting a tube; 5. a fixing plate; 6. a fixing pin; 7. a partition plate; 8. a connecting plate; 9. a closed cartridge; 10. an inner shaft; 11. a collar; 12. a telescopic rod; 13. a closing plate; 14. inserting a rod; 15. and (4) sealing the plug.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a shale hydraulic fracturing experimental device comprises a connecting cylinder 1, wherein an inserting seat 2 is fixedly installed at the top end of the connecting cylinder 1, a feeding pipe 3 is inserted at the top of the inserting seat 2, an inserting pipe 4 is fixedly installed at the bottom end of the feeding pipe 3, a fixing plate 5 is fixedly installed at the bottom end of the connecting cylinder 1, a fixing pin 6 is fixedly installed at the top end of the fixing plate 5, partition plates 7 are fixedly installed at the upper end and the lower end of the connecting cylinder 1, a connecting plate 8 is fixedly installed inside the connecting cylinder 1, a closed cylinder 9 is fixedly installed inside the connecting plate 8, an inner shaft 10 is fixedly installed inside the closed cylinder 9, a lantern ring 11 is sleeved outside the inner shaft 10, telescopic rods 12 are fixedly installed at the left side and the right side of the lantern ring 11, closed plates 13 are fixedly installed at the upper end and the lower end of the closed cylinder 9, inserting rods 14 are inserted inside the closed plates 13, the inserting rods 14 are two, an upper rod and a lower rod are respectively, a sliding groove is formed at the bottom end of the upper rod and the top of the left end of the lower rod is movably connected with the left end of the left telescopic rod 12, the right end of a telescopic rod 12 on the right side is connected inside the sliding groove in a sliding manner, when an upper rod descends, a lantern ring 11 is driven to rotate by the telescopic rod 12 on the left side, so that the telescopic rod 12 on the right side is driven to rotate, the lower rod is driven to ascend by the telescopic rod 12, a sealing plug 15 on the lower side is driven to ascend by the upper rod, a slot is formed in the sealing plate 13, a sealing ring is fixedly installed in the slot, an inserting rod 14 and a positioning rod are inserted in the slot, the sealing ring is used for preventing fracturing fluid from flowing into a sealing cylinder 9, one end, far away from the sealing cylinder 9, of the inserting rod 14 is fixedly installed with a sealing plug 15, a through hole is formed in the connecting plate 8, the inserting tube 4 and the sealing plug 15 are coaxial, when a feeding tube 3 is inserted into an inserting seat 2, the inserting tube 4 moves downwards, so that the sealing plug 15 on the upper side is ejected out of the discharging port, a positioning rod is fixedly installed on one side, close to the sealing plug 15, and the positioning rod is inserted in the sealing plug 13, fixed mounting has compression spring between closing plate 13 and the sealing plug 15, can be ejecting with sealing plug 15 through compression spring, thereby in advancing the business turn over feed inlet with sealing plug 15 top, thereby seal baffle 7, baffle 7 is inside to begin to have the discharge gate, the shape and the sealing plug 15 looks adaptation of discharge gate, sealing plug 15 scarf joint is inside the discharge gate, sealing plug 15 becomes trapezoidal, there is one side of inserted bar 14 to be long limit, when sealing plug 15 imbeds in advancing the feed inlet, can seal baffle 7, prevent fracturing fluid outflow, because sealing plug 15 is trapezoidal, when the sealing plug is pressed to connecting cylinder 1 in from the baffle 7 outside, can be ejecting from the discharge gate with sealing plug 15, when fracturing fluid is from the inboard outside of connecting cylinder 1 of baffle 7, sealing plug 15 can be blocked in the discharge gate, can not ejected.
When the fracturing fluid injection device is used, referring to fig. 1-3, at the beginning of an experiment, a fixing plate 5 is fixed on the ground, a feeding pipe 3 is embedded into an insertion base 2, an insertion pipe 4 descends, the insertion pipe 4 pushes an upper sealing plug 15 to descend, the sealing plug 15 pushes an upper rod to descend, a telescopic rod 12 on the left side drives a lantern ring 11 to rotate, so that a telescopic rod 12 on the right side is driven to rotate, the telescopic rod 12 pushes the lower rod to ascend, the upper rod drives a lower sealing plug 15 to ascend, so that a lower discharge hole is opened, and fracturing fluid is injected into a lower pipeline;
after injection is completed, the feeding pipe 3 is pulled out, the compression spring ejects the sealing plug 15 out, the sealing plug 15 is embedded into the feeding and discharging port again, the connecting cylinder 1 is closed, fracturing fluid is stored in the connecting cylinder 1, the hydraulic pressure is high when the fracturing fluid is injected, the sealing plug 15 below can be pressed upwards from the bottom of the connecting cylinder 1, the sealing plug 15 below is jacked up, the fracturing fluid flows into the connecting cylinder 1, when the sealing plug 15 below ascends, the lower rod ascends, the right end of the telescopic rod 12 on the right side slides in the sliding groove, the telescopic rod 12 cannot rotate, so that the telescopic rod 12 on the left side cannot be driven to rotate, the sealing plug 15 above cannot move downwards, and meanwhile, due to the shape of the upper plug 15, the sealing plug 15 above cannot be jacked upwards, and the fracturing fluid is prevented from overflowing;
when fracturing fluid needs to be pumped out, the feeding pipe 3 is inserted into the inserting base 2 again, the sealing plug 15 above the feeding pipe is ejected downwards, the sealing plugs 15 above and below the feeding pipe are all separated from the discharging port, and the fracturing fluid can be pumped out smoothly.
In conclusion, the shale hydraulic fracturing experimental device is characterized in that when a feeding pipe 3 is installed, when the feeding pipe 3 is embedded into an insertion base 2, an insertion pipe 4 descends, the insertion pipe 4 pushes a sealing plug 15 above to descend, the sealing plug 15 pushes an upper rod to descend, a telescopic rod 12 on the left side drives a lantern ring 11 to rotate, so that a telescopic rod 12 on the right side is driven to rotate, the telescopic rod 12 is utilized to push the lower rod to ascend, the upper rod drives a sealing plug 15 below to ascend, a discharge hole below is opened, so that fracturing fluid in the feeding pipe 3 can smoothly flow downwards through a connecting cylinder 1, and injection of the fracturing fluid cannot be hindered;
after injection is completed, the feeding pipe 3 is pulled out, the compression spring ejects the sealing plug 15 out, the sealing plug 15 is embedded into the feeding and discharging port again, the connecting cylinder 1 is closed, fracturing fluid is stored in the connecting cylinder 1, the fracturing fluid is pressed upwards from the bottom of the connecting cylinder 1 due to high hydraulic pressure during injection, the sealing plug 15 below is jacked up, the fracturing fluid flows into the connecting cylinder 1, the fracturing fluid stored in the connecting cylinder 1 can play a primary buffering role, equipment can be effectively prevented from being damaged, and the pressure for fixing the equipment is also reduced; when the sealing plug 15 of below rose, the lower beam moved up, and the 12 right-hand members of telescopic link on right side slided in the spout, and telescopic link 12 can not rotate for left telescopic link 12 can not driven rotatoryly, and the sealing plug 15 of top can not move down, simultaneously because the shape of top sealing plug 15, the sealing plug 15 of top can not upwards pushed up, prevents that fracturing fluid is excessive, reduces fracturing fluid and leaks outward and cause pollution and extravagant condition to take place.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (7)
1. The utility model provides a shale hydraulic fracturing experimental apparatus, includes connecting cylinder (1), its characterized in that: the connecting cylinder is characterized in that a socket (2) is fixedly mounted at the top end of the connecting cylinder (1), a feeding pipe (3) is inserted into the top of the socket (2), an insertion pipe (4) is fixedly mounted at the bottom end of the feeding pipe (3), a fixing plate (5) is fixedly mounted at the bottom end of the connecting cylinder (1), a fixing pin (6) is fixedly mounted at the top end of the fixing plate (5), partition plates (7) are fixedly mounted at the upper end and the lower end of the connecting cylinder (1), a connecting plate (8) is fixedly mounted in the connecting cylinder (1), a closed cylinder (9) is fixedly mounted in the connecting plate (8), an inner shaft (10) is fixedly mounted in the closed cylinder (9), a lantern ring (11) is sleeved outside the inner shaft (10), telescopic rods (12) are fixedly mounted at the left side and the right side of the lantern ring (11), and closed plates (13) are fixedly mounted at the upper end and the lower end of the closed cylinder (9), an inserting rod (14) is inserted into the sealing plate (13), and a sealing plug (15) is fixedly mounted at one end, far away from the sealing cylinder (9), of the inserting rod (14).
2. The shale hydraulic fracturing experimental device of claim 1, wherein: the number of the insert rods (14) is two, the insert rods are an upper rod and a lower rod respectively, and the bottom end of the upper rod is movably connected with the left end of the left side telescopic rod (12).
3. The shale hydraulic fracturing experimental device of claim 2, wherein: the top of the lower rod is provided with a sliding groove, and the right end of the telescopic rod (12) on the right side is connected inside the sliding groove in a sliding mode.
4. The shale hydraulic fracturing experimental device of claim 1, wherein: a positioning rod is fixedly mounted on one side, close to the sealing plate (13), of the sealing plug (15), the positioning rod is inserted into the sealing plate (13), and a compression spring is fixedly mounted between the sealing plate (13) and the sealing plug (15).
5. The shale hydraulic fracturing experimental device of claim 1, wherein: the sealing plate (13) is internally provided with a slot, the slot is internally and fixedly provided with a sealing ring, and the inserted bar (14) and the positioning bar are inserted into the slot.
6. The shale hydraulic fracturing experimental device of claim 1, wherein: the inside discharge gate that begins of baffle (7), the shape and sealing plug (15) looks adaptation of discharge gate, sealing plug (15) scarf joint is inside the discharge gate, sealing plug (15) become trapezoidal, have one side of inserted bar (14) to be long limit.
7. The shale hydraulic fracturing experimental device of claim 1, wherein: a through hole is formed in the connecting plate (8), and the insertion tube (4) and the sealing plug (15) are coaxial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122631971.4U CN216484373U (en) | 2021-10-30 | 2021-10-30 | Shale hydraulic fracturing experimental apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122631971.4U CN216484373U (en) | 2021-10-30 | 2021-10-30 | Shale hydraulic fracturing experimental apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216484373U true CN216484373U (en) | 2022-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122631971.4U Active CN216484373U (en) | 2021-10-30 | 2021-10-30 | Shale hydraulic fracturing experimental apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216484373U (en) |
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2021
- 2021-10-30 CN CN202122631971.4U patent/CN216484373U/en active Active
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