阅读说明：本技术 一种斜井用捞砂泵 (Bailing pump for inclined shaft ) 是由 王树杰 于 2019-10-21 设计创作，主要内容包括：本发明公开了一种斜井用捞砂泵,包括阀体和砂铲,所述阀体的一端连接有动力油管,所述阀体的内部设置有第一阀座,其中,所述第一阀座的一端连接有第一弹簧,所述第一弹簧远离第一阀座的一端设置有阀球,所述阀体远离动力油管的一端固定有活塞杆,所述活塞杆的一端固定有活塞,所述阀杆的外侧连接有第二弹簧,所述阀杆远离第二阀座的一端设置有单向阀,所述砂铲固定在泵筒远离阀体的一端。该斜井用捞砂泵设置有第一弹簧,当该捞砂泵应用在斜井中时,第一弹簧挤压阀球,使得阀球将阀口位置封闭,沉砂和油液从活塞杆的内部进入并顶开阀球,使得阀球受力挤压第一弹簧,从而通过第一弹簧可以方便阀球封闭阀口,并且保证阀口位置的密封性。(The invention discloses a bailing pump for an inclined shaft, which comprises a valve body and a sand shovel, wherein one end of the valve body is connected with a power oil pipe, a first valve seat is arranged inside the valve body, one end of the first valve seat is connected with a first spring, one end of the first spring, which is far away from the first valve seat, is provided with a valve ball, one end of the valve body, which is far away from the power oil pipe, is fixed with a piston rod, one end of the piston rod is fixed with a piston, the outer side of the valve rod is connected with a second spring, one end of the valve rod, which is far away from the second valve seat, is provided with a one-way valve, and the sand. This bailing pump for inclined shaft is provided with first spring, and when this bailing pump was used in the inclined shaft, first spring extrusion valve ball for the valve ball seals the valve port position, and sand setting and fluid get into and back-up the valve ball from the inside of piston rod, make valve ball atress extrude first spring, thereby can make things convenient for the valve ball to seal the valve port through first spring, and guarantee the leakproofness of valve port position.)

1. The utility model provides a bailing pump for inclined shaft, includes valve body and sand shovel, its characterized in that: one end of the valve body is connected with a power oil pipe, a first valve seat is arranged inside the valve body, wherein,

one end of the first valve seat is connected with a first spring, one end of the first spring, which is far away from the first valve seat, is provided with a valve ball, two ends of one side of the first valve seat are provided with circulating holes, one end of the valve body, which is far away from the power oil pipe, is fixed with a piston rod, and one end of the piston rod is fixed with a piston;

the piston rod is connected in the inside one end of pump barrel, the sand discharge hole has been seted up to one side both ends department of pump barrel, the inside of pump barrel is provided with the second valve seat, the inside through connection of second valve seat has the valve rod, the outside of valve rod is connected with the second spring, the one end that the second valve seat was kept away from to the valve rod is provided with the check valve, the one end of valve body is kept away from at the pump barrel is fixed to the sand shovel.

2. The bailing pump for inclined shaft according to claim 1, characterized in that: the inner section size of the first spring is smaller than the section size of the valve ball in the diameter direction, the section size of the first valve seat on one side of the first spring is inverted T-shaped, and the inner section size of the first spring is matched with the outer section size of one end of the first valve seat.

3. The bailing pump for inclined shaft according to claim 1, characterized in that: the inner section size of the pump cylinder is matched with the outer section size of the piston, and the diameter of the inner wall, close to the sand discharge hole, of the pump cylinder is larger than that of the inner wall of the pump cylinder at the joint of the piston.

4. The bailing pump for inclined shaft according to claim 1, characterized in that: the shape of the second valve seat is in a cross shape, the internal section size of the second valve seat is matched with the section size of the valve rod, the vertical distance from the second valve seat to the top of the one-way valve is smaller than the length of the valve rod, and the second valve seat forms a telescopic structure through a second spring and the valve rod.

5. The bailing pump for inclined shaft according to claim 1, characterized in that: the sand shovels are distributed at equal included angles, and the shape of each sand shovel is a conical structure.

Technical Field

The invention relates to the technical field of oil exploitation, in particular to a bailing pump for an inclined shaft.

Background

The bailing pump is indispensable equipment for bailing sand in a sand production well, the well condition of the oil well is constantly changed in the middle and later periods of oil field exploitation, the exploitation difficulty is increased, the bailing operation is adopted to clean a shaft, an oil layer is relatively clean, the bailing pump is mostly used for a vertical well or under the condition of small inclination angle in the market, and the working efficiency of the bailing pump cannot achieve the expected effect in the using process of an inclined well.

The existing sand bailing pumps for inclined wells on the market are very many in types and number, but have the following defects: when the bailing pump is used in an inclined shaft, the valve ball is easy to loosen, and the bailing pump is inconvenient for breaking hardened sand surface and is easy to block the inside of the bailing pump. Therefore, the prior bailing pump for the inclined shaft needs to be improved.

Disclosure of Invention

The invention aims to provide a bailing pump for an inclined shaft, which aims to solve the problems that a valve ball is easy to loosen when the bailing pump is used in the inclined shaft in the current market, and the bailing pump is inconvenient to break a hardened sand surface and the inner part of the bailing pump is easy to block.

In order to achieve the purpose, the invention provides the following technical scheme: a bailing pump for an inclined shaft comprises a valve body and a sand shovel, wherein one end of the valve body is connected with a power oil pipe, a first valve seat is arranged inside the valve body, wherein,

one end of the first valve seat is connected with a first spring, one end of the first spring, which is far away from the first valve seat, is provided with a valve ball, two ends of one side of the first valve seat are provided with circulating holes, one end of the valve body, which is far away from the power oil pipe, is fixed with a piston rod, and one end of the piston rod is fixed with a piston;

the piston rod is connected in the inside one end of pump barrel, the sand discharge hole has been seted up to one side both ends department of pump barrel, the inside of pump barrel is provided with the second valve seat, the inside through connection of second valve seat has the valve rod, the outside of valve rod is connected with the second spring, the one end that the second valve seat was kept away from to the valve rod is provided with the check valve, the one end of valve body is kept away from at the pump barrel is fixed to the sand shovel.

Preferably, the inner cross-sectional dimension of the first spring is smaller than the cross-sectional dimension of the valve ball in the diameter direction, the cross-sectional dimension of the first valve seat on one side of the first spring is in an inverted T shape, and the inner cross-sectional dimension of the first spring is matched with the outer cross-sectional dimension of one end of the first valve seat.

Preferably, the inner section size of the pump cylinder is matched with the outer section size of the piston, and the diameter of the inner wall of the pump cylinder, close to the sand discharge hole, is larger than that of the inner wall of the pump cylinder at the joint of the piston.

Preferably, the second valve seat is in a cross shape, the inner section size of the second valve seat is matched with the section size of the valve rod, the vertical distance from the second valve seat to the top of the one-way valve is smaller than the length of the valve rod, and the second valve seat forms a telescopic structure through a second spring and the valve rod.

Preferably, the sand shovels are distributed at equal included angles of 120 degrees, and the sand shovels are in a conical structure.

Compared with the prior art, the invention has the beneficial effects that: this bailing pump for inclined shaft:

1. when the bailing pump is applied to an inclined shaft, the first spring extrudes the valve ball to enable the valve ball to seal the valve port position, settled sand and oil enter from the interior of the piston rod and push the valve ball open, the valve ball is forced to extrude the first spring, and therefore the valve ball can conveniently seal the valve port through the first spring and the sealing performance of the valve port position is guaranteed;

2. the sand shovel is arranged, when the sand shovel is inserted into the hardened sand surface, the pump barrel at one end of the valve body is inserted into the inclined shaft for oil extraction, and the valve body is rotated or tamped to enable the sand shovel at the bottom of the pump barrel to be inserted into the hardened sand surface, so that the sand shovel can stir the sand surface conveniently and the hardened sand surface is loosened;

3. be provided with the second disk seat, when this bailing pump began to take out sand work, grit and fluid suction pump section of thick bamboo of sand shovel department because the shape of second disk seat adopts "ten" style of calligraphy structure for the second disk seat all have equal area's passageway all around, when the grit passes through the second disk seat, can guarantee that the position of second disk seat can not blockked up.

Drawings

FIG. 1 is a schematic structural view of a main section of a bailing pump for an inclined shaft according to the present invention;

FIG. 2 is a schematic top sectional view of the sand pump for an inclined shaft according to the present invention;

FIG. 3 is a schematic bottom view of the bailing pump for an inclined shaft according to the present invention;

fig. 4 is a partially enlarged structural schematic view of a part a in fig. 1 of the bailing pump for an inclined shaft of the present invention.

In the figure: 1. a valve body; 2. a power oil pipe; 3. a first valve seat; 4. a first spring; 5. a valve ball; 6. a circulation hole; 7. a piston rod; 8. a piston; 9. a pump barrel; 10. a sand discharge hole; 11. a second valve seat; 12. a valve stem; 13. a second spring; 14. a one-way valve; 15. and (5) shoveling the sand.

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. 1-4, the present invention provides a technical solution: a bailing pump for inclined shaft comprises a valve body 1, a power oil pipe 2, a first valve seat 3, a first spring 4, a valve ball 5, a circulation hole 6, a piston rod 7, a piston 8, a pump barrel 9, a sand discharge hole 10, a second valve seat 11, a valve rod 12, a second spring 13, a one-way valve 14 and a sand shovel 15, wherein one end of the valve body 1 is connected with the power oil pipe 2, the first valve seat 3 is arranged inside the valve body 1,

one end of the first valve seat 3 is connected with a first spring 4, the inner section of the first spring 4 is smaller than the section of the valve ball 5 in the diameter direction, the section of the first valve seat 3 on one side of the first spring 4 is inverted T-shaped, the inner section of the first spring 4 is matched with the outer section of one end of the first valve seat 3, the inner section of the first spring 4 is smaller than the section of the valve ball 5 in the diameter direction, so that the valve ball 5 can be pushed to a valve port by the first spring 4 when being obliquely placed, one end of the first spring 4, far away from the first valve seat 3, is provided with the valve ball 5, two ends of one side of the first valve seat 3 are provided with circulation holes 6, one end of the valve body 1, far away from the power oil pipe 2, is fixed with a piston rod 7, and one end of the piston rod 7 is fixed with a piston 8;

the piston rod 7 is connected to one end inside the pump barrel 9, the internal cross-sectional dimension of the pump barrel 9 is matched with the external cross-sectional dimension of the piston 8, the diameter of the inner wall of the pump barrel 9, which is close to the sand discharge hole 10, of the pump barrel 9 is larger than that of the pump barrel 9, when the piston 8 moves to the position of the sand discharge hole 10, gravel between the piston 8 and the pump barrel 9 can be discharged from the sand discharge hole 10, the sand discharge hole 10 is formed at two ends of one side of the pump barrel 9, the second valve seat 11 is arranged inside the pump barrel 9, the second valve seat 11 is in a cross shape, the internal cross-sectional dimension of the second valve seat 11 is matched with that of the valve rod 12, the vertical distance from the second valve seat 11 to the top of the one-way valve 14 is smaller than that of the valve rod 12, and the second valve seat 11 forms a telescopic structure through a second spring 13 and the, the shape that sets up second disk seat 11 is "ten" style of calligraphy for all there is the through-hole around the second disk seat 11, utilizes the extending structure that second disk seat 11 passes through to constitute between second spring 13 and the valve rod 12, when gravel and fluid get into pump barrel 9, makes check valve 14 push valve rod 12 remove in second disk seat 11, and makes things convenient for check valve 14 to resume closed state, the inside through connection who states second disk seat 11 has valve rod 12, the outside of valve rod 12 is connected with second spring 13, the one end that second disk seat 11 was kept away from to valve rod 12 is provided with check valve 14, sand shovel 15 fixes the one end of keeping away from valve body 1 at pump barrel 9, be 120 contained angle distributions such as between sand shovel 15, and sand shovel 15's shape is the toper structure, and the shape that sets up sand shovel 15 is the toper structure, can make things convenient for the sand face that the broken hardens when utilizing sand shovel 15 to rotate and stamp.

The working principle is as follows: when the sand bailing pump for the inclined shaft is used, firstly, the pump barrel 9 at one end of the valve body 1 is inserted into the inclined shaft for oil extraction, the valve body 1 is rotated or tamped to enable the sand shovel 15 at the bottom of the pump barrel 9 to be inserted into a hardened sand surface, and the sand surface is stirred to enable the hardened sand surface to be loosened, then, when the pump barrel 9 drives the sand shovel 15 to be completely inserted into the sand body, the power oil pipe 2 is pulled to drive the valve body 1 to rise for a certain distance, so that the piston rod 7 drives the piston 8 to realize piston motion in the pump barrel 9, one-end vacuum is generated in the pump barrel 9, a certain pressure difference is generated outside the pump barrel 9 and the pump barrel 9, the pressure difference is increased along with the upward movement of the piston 8, the increased pressure difference drives the one-way valve 14 at the bottom of the pump barrel 9 to extrude the second spring 13, the valve rod 12 at one side of the one-way valve 14 is made to perform telescopic movement in the second valve seat 11, and then the, because the shape of the second valve seat 11 adopts a cross-shaped structure, the periphery of the second valve seat 11 is provided with channels with equal area, when the settled sand passes through the second valve seat 11, the settled sand cannot be blocked, and then, when the settled sand and the oil enter the pump barrel 9, the fine gravel is discharged from the sand discharge holes 10 at the two ends of one side of the pump barrel 9, so that the gravel is prevented from blocking the piston 8 to move, and part of the oil is discharged along with the fine gravel when the piston 8 moves to the position of the sand discharge holes 10, when the piston 8 carries out continuous repeated movement, the settled sand and the oil enter from the inner part of the piston rod 7 and prop open the valve ball 5, so that the valve ball 5 is forced to extrude the first spring 4, when the settled sand and the oil enter the power oil pipe 2, the oil is discharged from the circulation hole 6, when the gravel in the bailing pump reaches a certain amount, the bailing pump is taken out from the inclined shaft, and the interior of the bailing pump is taken out, thereby completing the bailing, and what is not described in detail in this specification is prior art known to those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.