CN114109301A - Sand filling switch and sand filling device - Google Patents
Sand filling switch and sand filling device Download PDFInfo
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- CN114109301A CN114109301A CN202010899249.6A CN202010899249A CN114109301A CN 114109301 A CN114109301 A CN 114109301A CN 202010899249 A CN202010899249 A CN 202010899249A CN 114109301 A CN114109301 A CN 114109301A
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- sand
- release lever
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- release
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- 239000004576 sand Substances 0.000 title claims abstract description 205
- 239000000463 material Substances 0.000 claims abstract description 50
- 238000007789 sealing Methods 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 10
- 230000005484 gravity Effects 0.000 claims description 8
- 210000004907 gland Anatomy 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 239000003129 oil well Substances 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910001092 metal group alloy Inorganic materials 0.000 description 4
- 229910001120 nichrome Inorganic materials 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000012797 qualification Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
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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
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Sliding Valves (AREA)
Abstract
The application provides a sand filling switch and sand filling device belongs to sand filling technical field. This sand pack switch includes: the sand-leaking check comprises a shell, a release rod, a valve plate and a sand-leaking grid; the valve plate, the release rod and the sand leakage lattice are arranged in the shell, the sand leakage lattice is arranged at the bottom end of the shell, the valve plate is horizontally arranged on the upper end surface of the sand leakage lattice, and the release rod penetrates through the center of the sand leakage lattice and is parallel to the inner wall of the shell; when the release lever is not contacted with a target object, the lower end surface of the valve plate is attached to the upper end surface of the sand leakage lattice; when the release lever contacted with the target object, the center rebound of release lever drive valve plate, the valve plate is opened gradually and is formed the toper, and with the gap crescent between the inner wall of casing, fill out sand material and flow to hourglass sand check through the gap downwards, flow to in the well through leaking sand check. Because the angle that the valve plate was opened when filling sand at every turn is fixed angle, so when filling sand at every turn, the speed that the sand-packed material flows in the well is the same, and then can prevent that the sand-packed material from forming the sand bridge, improves the quality of sand-packed operation.
Description
Technical Field
The application relates to the technical field of sand filling, in particular to a sand filling switch and a sand filling device.
Background
At present, the sand filling technology is a construction technology for plugging a target oil layer in oil field development, and is widely applied due to the advantages of no pollution to the target oil layer and the like.
In the related technology, when sand is filled in an oil well, a plurality of constructors pour sand filling materials into the oil well in turn through sacks filled with the sand filling materials until the sand filling materials in the oil well are higher than a target oil layer, and plugging of the target oil layer is achieved.
However, in the above related art, since the speed of the sand pack poured by the constructor is different each time, the sand pack in the oil well cannot be uniformly distributed, and a sand bridge is easily formed in the oil well, and the formation of the sand bridge affects the subsequent construction work of the oil well. Therefore, the sand-pack work in the above-described related art is low in yield.
Disclosure of Invention
The embodiment of the application provides a sand filling switch and sand filling device, can improve the quality of sand filling operation. The technical scheme is as follows:
in one aspect, the application provides a sand pack switch, the sand pack switch includes: the sand-leaking check comprises a shell, a release rod, a valve plate and a sand-leaking grid;
the valve plate, the release rod and the sand leakage grid are arranged in the shell, the sand leakage grid is arranged at the bottom end of the shell, the valve plate is horizontally arranged on the upper end surface of the sand leakage grid, and the release rod penetrates through the center of the sand leakage grid to be parallel to the inner wall of the shell and is connected with the center of the valve plate;
when the release lever is not in contact with a target object, the valve plate is in a closed state, the lower end face of the valve plate is attached to the upper end face of the sand leakage grid, a space formed by the upper end face of the valve plate and the inner wall of the shell is used for containing sand filling materials, and the target object is an artificial well bottom;
the release lever with during the target object contact, the release lever receives target object's holding power rebound drives the center rebound of valve plate, the edge of valve plate receives the gravity of sand pack material leak to the center slip on the up end of sand check, the valve plate open gradually and form the toper, and with gap between the inner wall of casing increases gradually, the sand pack material passes through the gap downwardly flowing to leak the sand check, through leak the sand check and flow to in the well.
In one possible implementation, the valve plate includes a center ring and a plurality of valve flaps, the center ring being connected to one end of the plurality of valve flaps, respectively;
the release lever is connected with the center ring, in the process that the release lever moves upwards, the release lever drives one end of the valve clacks to move upwards through the center ring, the other ends of the valve clacks slide towards the center on the upper end surface of the sand leakage lattice under the gravity of the sand filling material, and the gap between the release lever and the inner wall of the shell is gradually increased.
In another possible implementation, the release levers include a first release lever and a second release lever;
a first bulge is arranged at the bottom end of the first release lever, and a first external thread is arranged on the first bulge; a first groove is formed in the top end of the second release lever, and first internal threads are formed in the first groove;
the first release rod and the second release rod are connected with the first internal thread through the first external thread.
In another possible implementation manner, the valve plate further comprises a first clamping groove, the first clamping groove is arranged at one end of the valve flaps, the release lever further comprises a second clamping groove, and the second clamping groove is arranged on the lower end face of the first release lever;
in the process that the first release lever and the second release lever are connected with the first internal thread through the first external thread, a gap between the first release lever and the second release lever is gradually reduced until the center ring is clamped in the first clamping groove and the second clamping groove, and the release levers are connected with the center of the valve plate through the center ring, the first clamping groove and the second clamping groove.
In the process that the first release lever and the second release lever are connected with the first internal thread through the first external thread, the gap between the first release lever and the second release lever is gradually reduced, and the release levers are connected with the center of the valve plate through the center ring and the first clamping groove.
In another possible implementation, the valve flaps are fan-shaped valve flaps, and edges of any two adjacent fan-shaped valve flaps coincide with each other.
In another possible implementation, a support sheet is arranged in each valve flap; the support sheet is used for increasing the rigidity of the valve clack.
In another possible implementation, the sand-packed switch further includes a track plate;
the track plate is horizontally arranged in the shell, a first round hole is formed in the center of the track plate, the diameter of the first round hole is matched with that of the release lever, and the release lever penetrates through the first round hole and is parallel to the inner wall of the shell;
the track plate provides lateral support for the release lever during movement of the release lever in a vertical direction.
In another possible implementation, the sand-pack switch further comprises a first sealing sleeve; the first sealing sleeve comprises a first connector, a first folding ring and a second connector;
the first connector, the first folding ring and the second connector are sequentially connected; the first connector is connected with the release lever, and the second connector is connected with the track plate;
the first sealing sleeve is used for preventing the sand-filled material from entering a gap between the release rod and the track plate.
In another possible implementation, the sand-pack switch further comprises a second sealing sleeve; the second sealing sleeve comprises a third connector, a second folding ring and a fourth connector;
the second sealing sleeve comprises a third connector, a second folding ring and a fourth connector which are sequentially connected; the third connector is connected with the release lever, and the fourth connector is connected with the valve plate;
and the second sealing sleeve is used for preventing the sand-filled material from entering a gap between the release rod and the valve plate.
In another aspect, the present application provides a sand pack apparatus, comprising: a sand pack cartridge and a sand pack switch as described in any one of the above;
the sand filling cylinder is connected with the sand filling switch.
The embodiment of the application provides a sand filling switch, because the release lever is connected with the center of the valve plate, the release lever moves up and down to flexibly control the opening and closing of the valve plate, and further control the sand filling material to flow into a well through a sand leakage grid; and, owing to pass and leak the sand check and be in the length of the release lever that leaks sand check below for the fixed length, the length that the release lever moved up like this at every turn is the fixed length, and the angle that the valve plate was opened during the sand filling is fixed angle, so during the sand filling, the speed that the sand filling material flows to the well is the same, and then can prevent because the sand filling material flows the speed difference, leads to the sand filling material in the well can not evenly distributed in the phenomenon emergence of formation sand bridge in the well, so, the sand filling switch that provides in the above-mentioned embodiment can improve the qualification rate of sand filling operation.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a sand-packed switch provided according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of another sand-packed switch provided in accordance with an embodiment of the present application;
fig. 3 is a schematic top view of a track slab according to an embodiment of the present application;
fig. 4 is a schematic side view of a track plate according to an embodiment of the present application;
FIG. 5 is a schematic structural view of a release lever provided in accordance with an embodiment of the present application;
FIG. 6 is a schematic structural diagram of a valve plate provided in accordance with an embodiment of the present application;
FIG. 7 is a schematic top view of a sand leakage grid according to an embodiment of the present application;
FIG. 8 is a schematic diagram of a side view structure of a sand leakage grid provided in an embodiment of the present application;
fig. 9 is a schematic structural diagram of a sand pack device according to an embodiment of the present application.
Reference numerals:
10 sand filling switch
11 casing
12 release lever
121 first release lever
122 second release lever
13 valve plate
131 second round hole
132 first card slot
14 sand leakage grid
141 third round hole
142 second sand leakage port
143 second seal groove
15 track plate
151 first round hole
152 first sand drain
20 sand filling cylinder
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a sand-packed switch provided in the present application. Referring to fig. 1, the sand-pack switch includes: the sand-leakage-prevention valve comprises a shell 11, a release rod 12, a valve plate 13 and a sand-leakage grid 14;
the valve plate 13, the release rod 12 and the sand leakage grid 14 are arranged in the shell 11, the sand leakage grid 14 is arranged at the bottom end of the shell 11, the valve plate 13 is horizontally arranged on the upper end face of the sand leakage grid 14, and the release rod 12 penetrates through the center of the sand leakage grid 14 to be parallel to the inner wall of the shell 11 and is connected with the center of the valve plate 13;
when the release rod 12 is not in contact with a target object, the valve plate 13 is in a closed state, the lower end face of the valve plate 13 is attached to the upper end face of the sand leakage grid 14, a space formed by the upper end face of the valve plate 13 and the inner wall of the shell 11 is used for containing a sand filling material, and the target object is an artificial shaft bottom;
when release lever 12 contacts with the target object, release lever 12 receives the holding power upward movement of target object, drives the center upward movement of valve plate 13, and the edge of valve plate 13 receives the gravity of the sand pack material, slides to the center on the up end of hourglass sand check 14, and valve plate 13 opens gradually and forms the toper, and increases gradually with the gap between the inner wall of casing 11, and the sand pack material flows to hourglass sand check 14 downwards through the gap, flows into the well through hourglass sand check 14.
It should be noted that, when the release lever 12 is in contact with the target object, the release lever 12 is moved upward by the supporting force of the target object until the bottom end of the release lever 12 contacts the sand leakage grid 14 at the bottom end of the housing 11, and the release lever 12 stops moving upward. Wherein the distance that the release rod 12 moves upwards is the length of the release rod 12 below the sand leakage grid 14. The longer the release lever 12 moves upward, the larger the angle at which the valve plate 13 opens; the shorter the distance the release lever 12 moves upward, the smaller the angle at which the valve plate 13 opens. It can be seen that the length of the release lever 12 below the sand grid 14 is related to the angle at which the valve plate 13 is open when the release lever 12 is not in contact with the target object, so the rate of flow of the sand pack into the well can be controlled by controlling the length of the release lever 12.
Another point to be described is that after the sand filling is completed, the sand filling switch moves upward, and at this time, the release lever 12 moves downward by its own gravity to drive the center of the valve plate 13 to move downward, the edge of the valve plate 13 slides to the edge on the upper end surface of the sand leakage grid 14, and the valve plate 13 is gradually closed until the lower end surface of the valve plate 13 is attached to the upper end surface of the sand leakage grid 14.
The embodiment of the application provides a sand filling switch, because the release lever is connected with the center of the valve plate, the release lever moves up and down to flexibly control the opening and closing of the valve plate, and further control the sand filling material to flow into a well through a sand leakage grid; and, owing to pass and leak the sand check and be in the length of the release lever that leaks sand check below for the fixed length, the length that the release lever moved up like this at every turn is the fixed length, and the angle that the valve plate was opened during the sand filling is fixed angle, so during the sand filling, the speed that the sand filling material flows to the well is the same, and then can prevent because the sand filling material flows the speed difference, leads to the sand filling material in the well can not evenly distributed in the phenomenon emergence of formation sand bridge in the well, so, the sand filling switch that provides in the above-mentioned embodiment can improve the qualification rate of sand filling operation.
Introduction of the housing 11: the housing 11 is cylindrical, and the material of the housing 11 may be metal, such as copper, iron, etc.; metal alloys such as nichrome, aluminum alloy, and the like are also possible. Wherein, the sand leakage grid 14 is arranged at the bottom end of the shell 11.
Optionally, a second external thread is arranged outside the sand leakage lattice 14, a second internal thread is arranged at the bottom of the shell 11, and the sand leakage lattice 14 is connected with the shell 11 through the second external thread and the second internal thread. It should be noted that the second external thread outside the sand leakage grid 14 is a threaded male thread, and the second internal thread at the bottom of the housing 11 is a threaded female thread.
In a possible realization, a first step is provided in the housing 11. After the sand leakage grids 14 are fixedly connected with the shell 11 through the first external threads and the first internal threads, the upper end surfaces of the sand leakage grids 14 are mutually abutted to the first steps. Wherein, first step is used for injecing the position of leaking sand check 14 in casing 11, and when leaking through first external screw thread and first female connection between sand check 14 and the casing 11 like this, there is not to be connected the condition emergence of tension or connection pine, has improved this switching device's stability.
Description of the track plate 15: in a possible implementation, referring to fig. 2, the sand-filled switch further includes a track plate 15, the track plate 15 is horizontally disposed in the housing 11, and a second step is further disposed in the housing 11. Optionally, the lower end surface of the track plate 15 is provided with a first annular protrusion, the upper end surface of the second step is provided with a first annular groove, and the track plate 15 and the second step are connected by the first annular protrusion and the first annular groove in a sleeved manner.
Optionally, a first circular hole 151 is formed in the center of the track plate 15, the diameter of the first circular hole 151 is matched with the diameter of the release lever 12, and the release lever 12 passes through the first circular hole 151 and is parallel to the inner wall of the housing 11; the track plate 15 provides lateral support for the release lever 12 during movement of the release lever 12 in the vertical direction.
In one possible implementation, referring to fig. 3, the track plate 15 includes a first circular hole 151 and a plurality of first sand leaks 152; the plurality of first sand leaks 152 are shaped as a semicircle or a sector. The number of the first plurality of sand leaks 152 may be any number between 2 and 6, for example, 2, 3, 4, etc. Optionally, referring to fig. 3, the number of the first sand leaking openings 152 is 3, and the 3 first sand leaking openings 152 have the same size and are all in a fan-shaped structure.
In one possible implementation, with continued reference to fig. 2, the sand-pack switch further comprises a first gland; the first sealing sleeve comprises a first connector, a first folding ring and a second connector; the first connector, the first folding ring and the second connector are sequentially connected; the first connector is connected with the release lever 12, and the second connector is connected with the track plate 15; and a first sealing sleeve for preventing the sand-filled material from entering a gap between the release lever 12 and the track plate 15.
Optionally, referring to fig. 4, the track plate 15 further comprises a second annular groove, and the release lever 12 further comprises a third annular groove. Wherein, the second annular groove is disposed on the first circular hole 151, and the second connector is disposed with a second annular protrusion. The second connector is connected with the track plate 15 through a second annular bulge and a second annular groove in a sleeved mode, and the first connector is connected with the release lever 12 through a third annular bulge and a third annular groove in a sleeved mode.
In this application embodiment, through setting up the second seal cover, can prevent to fill the sand material and get into the gap between release lever 12 and the track board 15, and then prevent to fill the sand material and block release lever 12 and track board 15, ensured the normal removal of release lever 12 in track board 15, improved this switching device's stability.
In a possible implementation manner, a first sealing groove is formed in the inner wall of the first circular hole 151, and a first sealing ring is installed in the first sealing groove; and a first sealing ring for sealing a gap between the first round hole 151 and the release lever 12. The number of the first seal grooves may be one or more. Optionally, with continued reference to fig. 2, the number of the first seal grooves is 1, and the number of the first seal rings is 1.
In this application embodiment, through setting up first sealing washer and first seal cover cooperation, can be comprehensive prevent to fill the sand material and get into the gap between release lever 12 and the track board 15, and then ensured the normal removal of release lever 12 in track board 15, further improved this switching device's stability.
Introduction of the release lever 12: the release rod 12 passes through the center of the sand leakage grid 14 and is parallel to the inner wall of the housing 11, and is connected with the center of the valve plate 13. Wherein, the shape of the releasing rod 12 is a cylinder, and the material of the releasing rod 12 can be metal, such as copper, iron, etc.; metal alloys such as nichrome, aluminum alloy, and the like are also possible.
In one possible implementation, with reference to fig. 3, release lever 12 comprises a first release lever 121 and a second release lever 122; a first protrusion is arranged at the bottom end of the first release lever 121, and a first external thread is arranged on the first protrusion; a first groove is formed at the top end of the second release lever 122, and a first internal thread is arranged in the first groove; first release lever 121 and second release lever 122 are connected with the first internal thread through the first external thread. The first external thread on the first protrusion is a threaded male buckle, and the first internal thread in the first groove is a threaded female buckle.
It should be noted that the first protrusion is located at the center of first release lever 121, the first recess is located at the center of second release lever 122, and the position of the first protrusion on first release lever 121 corresponds to the position of the first recess on second release lever 122. And, the length value of the first protrusion is greater than the depth value of the first groove, so that when the first protrusion is connected with the first groove, a gap is reserved between the first release lever 121 and the second release lever 122, and the valve plate 13 is fixed by the reserved gap.
In one possible implementation, with continued reference to fig. 3, the top end of the release lever 12 is tapered. In the tapered structure, the included angle between the generatrix and the bottom line may be any value between 50 degrees and 80 degrees, for example, 55 degrees, 60 degrees, 65 degrees, etc.
In the embodiment of the present application, the top end of the release lever 12 is a tapered structure, and when the release lever 12 contacts with the target object, the release lever 12 is moved upward by the supporting force of the target object, so that the tapered structure can reduce the resistance of the sand-filled material in the housing 11 to the release lever 12, thereby improving the sensitivity of the switch device.
Introduction of the valve plate 13: valve plate 13 sets up on the up end of hourglass sand check 14 horizontally, and release lever 12 passes hourglass sand check 14 center and is parallel with the inner wall of casing 11, and is connected with the center of valve plate 13.
The valve plate 13 is circular, and the valve plate 13 may be made of a polymer material, such as nylon plastic, rubber, fiber, etc.; but also metals, such as copper, iron, etc.; also, metal alloys such as nichrome, aluminum alloy, and the like are also possible.
Optionally, the valve plate 13 is made of nylon plastic. Wherein, nylon plastic has certain toughness, can reduce the mechanical friction between valve plate 13 and casing 11 and valve plate 13 and the hourglass sand check 14, has improved switching device's life and stability.
In a possible realization, with reference to fig. 4, the valve plate 13 is centrally provided with a second circular hole 131, the diameter of the second circular hole 131 being smaller than the diameter of the first release lever 121 and larger than the diameter of the first projection. Valve plate 13 is sleeved on the first protrusion before first release lever 121 and second release lever 122 are connected with the first internal thread through the first external thread, and valve plate 13 is just clamped between the gaps of first release lever 121 and second release lever 122 after first release lever 121 and second release lever 122 are connected with the first internal thread through the first external thread, so that release lever 12 is connected with the center of valve plate 13.
In another possible implementation, the valve plate 13 comprises a central ring and a plurality of valve flaps, the central ring being connected to one end of each of the plurality of valve flaps; the release lever 12 is connected with the center ring, in the process that the release lever 12 moves upwards, the release lever 12 drives one end of the valve clacks to move upwards through the center ring, the other ends of the valve clacks slide towards the center on the upper end surface of the sand leakage grid 14 under the gravity of the sand filling material, and the gap between the release lever 12 and the inner wall of the shell 11 is gradually increased.
In a possible implementation, with continued reference to fig. 4, the valve plate 13 further includes a first catch groove 132, and a lower end surface of the first release lever 121 is a horizontal surface. The first locking groove 132 is disposed at one end of the plurality of valve flaps, and the center ring is locked in the first locking groove 132 and attached to the lower end surface of the first release lever 121. Wherein, the center ring and the plurality of valve flaps are sleeved and connected together through a first clamping groove 132.
In another possible implementation, the valve plate 13 further includes a first clamping groove 132, and the first clamping groove 132 is disposed at one end of the plurality of valve flaps; the release lever 12 further includes a second catch groove provided on a lower end surface of the first release lever 121; the first card slot 132 and the second card slot are in opposite positions. In the process that the first release lever 121 and the second release lever 122 are connected with the first internal thread through the first external thread, a gap between the first release lever 121 and the second release lever 122 is gradually reduced until the center ring is clamped in the first clamping groove 132 and the second clamping groove, and the release lever 12 is connected with the center of the valve plate 13 through the center ring, the first clamping groove 132 and the second clamping groove. Wherein, the clearance between first release lever 121 and second release lever 122 is the spatial position that is reserved for installing the valve plate. The width of the gap is greater than the thickness of the valve plate.
It should be noted that, in the process that the release lever 12 drives the center of the valve plate 13 to move upward, and the valve plate 13 slides toward the center on the upper end surface of the sand leakage grid 14, the valve flaps rotate around the center ring through the first clamping grooves 132, so that the valve plate 13 can be gradually opened, and a cone shape can be smoothly formed.
In one possible implementation, the valve flaps are fan-shaped valve flaps, and edges of any two adjacent fan-shaped valve flaps coincide with each other.
When the release lever 12 is not in contact with the target object, the valve plate 13 is in a closed state, and the lower end surface of the valve plate 13 abuts against the upper end surface of the sand leakage lattice 14. At this time, the valve plate 13 is a plane valve plate 13, and the area where the edges of any two adjacent fan-shaped valve flaps overlap each other is the smallest. When the release rod 12 is in contact with a target object, the release rod 12 is supported by the target object to move upwards, so that the center of the valve plate 13 is driven to move upwards, and the edge of the valve plate 13 slides towards the center on the upper end surface of the sand leakage grid 14 under the gravity of the sand filling material. At this time, the valve plate 13 is gradually opened to form a cone shape, and the area where the edges of any two adjacent fan-shaped valve flaps overlap with each other is the largest.
In the embodiment of the application, the edges of any two adjacent fan-shaped valve flaps are overlapped with each other, and the area of the overlapped edges can be flexibly changed along with the opening and closing of the valve plate 13, so that the sensitivity of the switching device is improved.
In another possible implementation, the valve plate is of an umbrella-shaped overall structure. Optionally, a foldable connecting portion is arranged between any two adjacent fan-shaped valve flaps, and the valve flaps are flexibly connected together through the foldable connecting portion.
In another possible implementation, a support sheet is arranged in each valve flap; and the support sheet is used for increasing the hardness of the valve clack. Optionally, the support sheet and the valve flap are fixed together by an integral forming method. For example, thermoplastic processes, and the like. Wherein, the material of the supporting sheet can be metal, such as copper, iron, etc.; also, metal alloys such as nichrome, aluminum alloy, and the like are also possible.
In this application embodiment, be in the closed condition at valve plate 13, the lower terminal surface of valve plate 13 and the up end laminating of hourglass sand check 14, the space that the up end of valve plate 13 and the inner wall of casing 11 are constituteed is used for holding the abrasive filler, through the backing sheet that sets up in the valve clack, can increase the hardness of valve clack, and then prevents that valve plate 13 from taking place to warp because of receiving the backlog of abrasive filler, has improved switching device's stability.
In another possible implementation, with continued reference to fig. 2, the sand-pack switch further comprises a second gland; the second sealing sleeve comprises a third connector, a second folding ring and a fourth connector; the second sealing sleeve comprises a third connector, a second folding ring and a fourth connector which are sequentially connected; the third connector is connected with the release lever 12, and the fourth connector is connected with the valve plate 13; and a second sealing sleeve for preventing the sand-filled material from entering a gap between the release lever 12 and the valve plate 13.
Optionally, the release lever 12 further includes a fourth annular groove, the valve plate 13 further includes a fifth annular groove, the third connector is provided with a fourth annular protrusion, and the fourth connector is provided with a fifth annular protrusion. Wherein, the third connector and the release lever 12 are sleeved and connected with the fourth annular groove through a fourth annular bulge; the fourth connector is sleeved with the valve plate 13 through a fifth annular protrusion and a fifth annular groove.
In this application embodiment, through setting up the second seal cover, can prevent that the sand-packed material from getting into the gap between release lever 12 and the valve plate 13, and then prevent that the sand-packed material from hindering opening and closing of valve plate 13, ensured the normal work of valve plate 13, improved this switching device's stability.
Introduction of the sand leakage grid 14: the sand leakage grid 14 is arranged at the bottom end of the shell 11. When the release rod 12 is not in contact with a target object, the valve plate 13 is in a closed state, the lower end face of the valve plate 13 is attached to the upper end face of the sand leakage lattice 14, and the upper end face of the sand leakage lattice 14 is a seating ring table of the valve plate 13 and is used for providing supporting force for the valve plate 13. When the release rod 12 is in contact with a target object, the valve plate 13 is gradually opened to form a cone shape, the gap between the valve plate and the inner wall of the shell 11 is gradually increased, and the sand filling material flows downwards to the sand leakage grid 14 through the gap and flows into a well through the sand leakage grid 14.
In one possible implementation, the sand leakage grid 14 includes a third circular hole 141 and a plurality of second sand leakage ports 142; the second plurality of sand leaks 142 are shaped as a semicircle or a sector. The number of the second plurality of sand leaks 142 can be any number between 2 and 6, such as 2, 3, 4, etc. Optionally, referring to fig. 5, the number of the second sand leaking openings 142 is 3, and the 3 second sand leaking openings 142 have the same size and are all fan-shaped structures.
In a possible implementation manner, a second sealing groove 143 is arranged on the inner wall of the third circular hole 141, and a second sealing ring is installed in the second sealing groove 143; and a second sealing ring for sealing a gap between the third circular hole 141 and the release lever 12. The number of the second seal grooves 143 may be one or more. Optionally, referring to fig. 6, the number of the second seal grooves 143 is 3, and the number of the second seal rings is 3.
In the embodiment of the present application, if sand leaking material enters into the gap between the third circular hole 141 and the release lever 12, when the release lever 12 moves, the sand leaking material in the gap may block the sand leaking grid 14 and the release lever 12, resulting in that the release lever 12 cannot move normally. Therefore, the gap between the third round hole 141 and the release lever 12 is sealed by the second sealing ring, so that the sand leakage material can be prevented from entering the gap between the sand leakage grid 14 and the release lever 12, the normal movement of the release lever 12 is ensured, and the stability of the switch device is improved.
Fig. 9 is a schematic structural diagram of a sand pack device provided by the present application. Referring to fig. 9, the sand pack apparatus includes: a sand-fill canister 20 and any of the above-mentioned possible sand-fill switches; the sand filling cylinder 20 is connected with a sand filling switch.
In a possible implementation manner, a third external thread is arranged at the bottom end of the sand filling cylinder 20, a third internal thread is arranged at the top end of the shell 11 of the sand filling switch, and the sand filling cylinder 20 is connected with the sand filling switch through the third external thread and the third internal thread. Wherein, the third external screw thread is the screw thread pin, and the third internal thread is the screw thread box.
The embodiment of the application provides a sand filling device, as the release lever is connected with the center of the valve plate and moves up and down through the release lever, the valve plate is flexibly controlled to be opened and closed, and then sand filling materials are controlled to flow into a well through the sand leakage grids; and, owing to pass and leak the sand check and be in the length of the release lever that leaks sand check below for the fixed length, the length that the release lever moved up like this at every turn is the fixed length, and the angle that the valve plate was opened during the sand filling is fixed angle, so during the sand filling, the speed that the sand filling material flows to the well is the same, and then can prevent because the sand filling material flows the speed difference, leads to the sand filling material in the well can not evenly distributed in the phenomenon emergence of formation sand bridge in the well, so, the sand filling device that provides in the above-mentioned embodiment can improve the qualification rate of sand filling operation.
The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A sand pack switch, comprising: the sand-leaking check comprises a shell, a release rod, a valve plate and a sand-leaking grid;
the valve plate, the release rod and the sand leakage grid are arranged in the shell, the sand leakage grid is arranged at the bottom end of the shell, the valve plate is horizontally arranged on the upper end surface of the sand leakage grid, and the release rod penetrates through the center of the sand leakage grid to be parallel to the inner wall of the shell and is connected with the center of the valve plate;
when the release lever is not in contact with a target object, the valve plate is in a closed state, the lower end face of the valve plate is attached to the upper end face of the sand leakage grid, a space formed by the upper end face of the valve plate and the inner wall of the shell is used for containing sand filling materials, and the target object is an artificial well bottom;
the release lever with during the target object contact, the release lever receives target object's holding power rebound drives the center rebound of valve plate, the edge of valve plate receives the gravity of sand pack material leak to the center slip on the up end of sand check, the valve plate open gradually and form the toper, and with gap between the inner wall of casing increases gradually, the sand pack material passes through the gap downwardly flowing to leak the sand check, through leak the sand check and flow to in the well.
2. The sand-filled switch of claim 1, wherein the valve plate comprises a center ring and a plurality of valve flaps, the center ring being connected to one end of the plurality of valve flaps, respectively;
the release lever is connected with the center ring, in the process that the release lever moves upwards, the release lever drives one end of the valve clacks to move upwards through the center ring, the other ends of the valve clacks slide towards the center on the upper end surface of the sand leakage lattice under the gravity of the sand filling material, and the gap between the release lever and the inner wall of the shell is gradually increased.
3. The sand pack switch of claim 2, wherein the release levers include a first release lever and a second release lever;
a first bulge is arranged at the bottom end of the first release lever, and a first external thread is arranged on the first bulge; a first groove is formed in the top end of the second release lever, and first internal threads are formed in the first groove;
the first release rod and the second release rod are connected with the first internal thread through the first external thread.
4. The sand-filled switch of claim 3, wherein the valve plate further comprises a first catch disposed at one end of the plurality of valve flaps, and the release lever further comprises a second catch disposed on a lower end surface of the first release lever;
in the process that the first release lever and the second release lever are connected with the first internal thread through the first external thread, a gap between the first release lever and the second release lever is gradually reduced until the center ring is clamped in the first clamping groove and the second clamping groove, and the release levers are connected with the center of the valve plate through the center ring, the first clamping groove and the second clamping groove.
5. The sand-filled switch of claim 2, wherein the plurality of valve flaps are fan-shaped valve flaps, and edges of any two adjacent fan-shaped valve flaps coincide with each other.
6. A sand-filled switch according to claim 2, wherein a support sheet is provided within each flap; the support sheet is used for increasing the rigidity of the valve clack.
7. The sand-pack switch of claim 1, further comprising a track plate;
the track plate is horizontally arranged in the shell, a first round hole is formed in the center of the track plate, the diameter of the first round hole is matched with that of the release lever, and the release lever penetrates through the first round hole and is parallel to the inner wall of the shell;
the track plate provides lateral support for the release lever during movement of the release lever in a vertical direction.
8. The sand-pack switch of claim 7, further comprising a first gland; the first sealing sleeve comprises a first connector, a first folding ring and a second connector;
the first connector, the first folding ring and the second connector are sequentially connected; the first connector is connected with the release lever, and the second connector is connected with the track plate;
the first sealing sleeve is used for preventing the sand-filled material from entering a gap between the release rod and the track plate.
9. The sand-pack switch of claim 1, further comprising a second gland; the second sealing sleeve comprises a third connector, a second folding ring and a fourth connector;
the second sealing sleeve comprises a third connector, a second folding ring and a fourth connector which are sequentially connected; the third connector is connected with the release lever, and the fourth connector is connected with the valve plate;
and the second sealing sleeve is used for preventing the sand-filled material from entering a gap between the release rod and the valve plate.
10. A sand pack apparatus, comprising: a sand pack cartridge and the sand pack switch of any one of claims 1-9;
the sand filling cylinder is connected with the sand filling switch.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010899249.6A CN114109301B (en) | 2020-08-31 | 2020-08-31 | Sand filling switch and sand filling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010899249.6A CN114109301B (en) | 2020-08-31 | 2020-08-31 | Sand filling switch and sand filling device |
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| CN114109301A true CN114109301A (en) | 2022-03-01 |
| CN114109301B CN114109301B (en) | 2023-07-25 |
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| GB477002A (en) * | 1936-06-18 | 1937-12-20 | Alfred Henry Larkin | Sealing and automatic air release cover, for street manholes and the like |
| GB827293A (en) * | 1956-03-22 | 1960-02-03 | Zwicky Ltd | Control of liquid supply pressure |
| JPH0813984A (en) * | 1994-06-30 | 1996-01-16 | Giji Kin | Mortar impregnation check valve in tunnel segment |
| CN107225081A (en) * | 2017-06-06 | 2017-10-03 | 河南理工大学 | A kind of automatic sieving weighs geotechnological screening plant |
| CN206885855U (en) * | 2017-07-05 | 2018-01-16 | 连云港泓昊复合材料有限公司 | A kind of effective anti-clogging of fiberglass sand inclusion adds sand hopper |
| CN107782593A (en) * | 2017-09-18 | 2018-03-09 | 东南大学 | Packaged type sand leakage device and prepare the method for making sample of sand using it |
| CN110711854A (en) * | 2019-11-28 | 2020-01-21 | 安徽省含山县富坤铸造厂 | Tubular casting desanding device |
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2020
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB477002A (en) * | 1936-06-18 | 1937-12-20 | Alfred Henry Larkin | Sealing and automatic air release cover, for street manholes and the like |
| GB827293A (en) * | 1956-03-22 | 1960-02-03 | Zwicky Ltd | Control of liquid supply pressure |
| JPH0813984A (en) * | 1994-06-30 | 1996-01-16 | Giji Kin | Mortar impregnation check valve in tunnel segment |
| CN107225081A (en) * | 2017-06-06 | 2017-10-03 | 河南理工大学 | A kind of automatic sieving weighs geotechnological screening plant |
| CN206885855U (en) * | 2017-07-05 | 2018-01-16 | 连云港泓昊复合材料有限公司 | A kind of effective anti-clogging of fiberglass sand inclusion adds sand hopper |
| CN107782593A (en) * | 2017-09-18 | 2018-03-09 | 东南大学 | Packaged type sand leakage device and prepare the method for making sample of sand using it |
| CN110711854A (en) * | 2019-11-28 | 2020-01-21 | 安徽省含山县富坤铸造厂 | Tubular casting desanding device |
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| CN114109301B (en) | 2023-07-25 |
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