Patent ID: 12258949

Reference signs:10, pump body;11, bushing;20, central tube;30, traveling valve;31, traveling valve cover;32, traveling valve core;40, oil pumping assembly;41, plunger;42, trapezoidal protrusion;43, first push block;44, second push block;45, stop nut;50, standing valve;51, standing valve cover;52, standing valve core;53, spring;54, standing valve baffle;60, extension coupling;70, pump barrel joint;311, first stop ring;312, first protrusion;511, second protrusion;541, second stop ring; and542, connecting ring.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The principles and features of the present disclosure are introduced in detail in combination with the following attached figures, the examples are only intended to describe the present disclosure, but not intended to limit the scope of the present disclosure.

The embodiment provides a pumping oil production device. Through the brand-new design of the structure of the oil production device, the oil production device can achieve oil pumping and oil production, and also can be matched with a measuring and detecting instrument to achieve oil production testing of an oil layer production surface.

The specific structure of the oil production device is described in detail as follows.

Referring toFIG.1,FIG.2andFIG.5, the pumping oil production device provided by the scheme comprises a pump body10, and the pump body10is arranged on the periphery and can play an effective protection role. The oil production device further comprises a central tube20of a hollow structure, and the central tube is partially located in the pump body10and coaxially arranged with the pump body10. It can be understood that one end of the central tube20is arranged inside the pump body10and the other end of the central tube is located outside the pump body10. A traveling valve30and a standing valve50are arranged on the left side and the right side of the outer wall of the central tube20respectively, and the traveling valve30is arranged between the pump body10and the central tube20. The standing valve50is located outside the pump body10.

Namely, in the embodiment, the traveling valve30is arranged between the pump body10and the central tube20, and the standing valve50is arranged at the other end of the central tube20. It is noted that the pump body10does not extend to the standing valve50. It can be understood that the traveling valve30provided in the present scheme is arranged in the direction close to the left side of the central tube20, and the standing valve50is arranged in the direction close to the right side of the central tube20.

Through the arrangement, the traveling valve30and the standing valve50are matched with the pump body10and the central tube20to form an oil pumping space, and the oil pumping space is mainly used for pumping and transition flow of oil. Namely, the oil is pumped through the oil production device, enters the oil pumping space from the right side, and then overflows from the left side of the oil production device through transition of the oil pumping space. It should be noted that left and right directions referred to herein are defined for ease of understanding according to the orientation of the oil production device in the attached figures. Namely, the oil outlet end is in the left direction, and the oil inlet end is in the right direction; a user can define the oil outlet end and the oil inlet end in different placement directions.

In the embodiment, transition flow of oil in the oil pumping space is achieved through the oil pumping assembly40. Namely, the oil pumping assembly40is further arranged in the oil pumping space, and the oil pumping assembly40axially moves in the oil pumping space in a reciprocating mode so that the traveling valve30and the standing valve50can be opened step by step to achieve oil pumping.

In the specific using process, the oil production device is put in the oil, and it is guaranteed that the standing valve50can be immersed in the oil. Then, the oil layer oil production measurer is put in through the central pipe20and used for testing the oil production of the oil layer production surface. Meanwhile, the central tube20is pumped in a reciprocating mode, so that the oil pumping assembly40in the central tube20axially moves in a reciprocating mode in the oil pumping space, and the traveling valve30and the standing valve50are promoted to be opened step by step, so that the oil can enter the oil pumping space through the oil inlet end and then overflows through the oil outlet end.

Optionally, a bushing11is arranged on the inner wall of the pump body10, and the traveling valve30and the oil pumping assembly40are arranged between the bushing11and the central tube20. Effective protection of the traveling valve30and the oil pumping assembly40is formed by using the bushing11, and the sealing effect of the whole oil pumping space is further promoted.

The specific composition of the traveling valve30, the oil pumping assembly40and the standing valve50is described in detail as follows.

In the embodiment, referring toFIG.3, the traveling valve30comprises a traveling valve cover31and a traveling valve core32, wherein the traveling valve cover31is fixed on the bushing11, and the traveling valve cover31is provided with a first stop ring311and a first protrusion312in the direction facing the central tube20. An oil hole is formed in the first stop ring311, and the first stop ring311and the first protrusion312are arranged at intervals to form a first interval space. The traveling valve core32is fixed to the outer wall of the central tube20and located in the first interval space. The traveling valve core32can move in the first interval space and can be in sealing contact with the first protrusion312.

It can be understood that when the central tube20moves, the movement of the traveling valve core32cam be controlled. Namely, the central tube20moves rightwards so that the traveling valve core32is in sealing contact with the first protrusion312. At the moment, the oil hole of the first stop ring311and the oil pumping space are blocked, namely, the oil outlet end is closed. When the central tube20moves leftwards so that the traveling valve core32is separated from the first protrusion312, the oil hole of the first stop ring311communicates with the oil pumping space, namely, the oil outlet end is opened. (The direction of an arrow lead in the figure is the flow direction of the oil after the oil outlet end is opened).

In the embodiment, referring toFIG.4, the oil pumping assembly40comprises a plunger41fixed on the bushing11, and one end of the plunger41is fixed on the traveling valve cover31in threaded connection. The plunger41is provided with a trapezoidal protrusion42in the direction facing the central tube20. The oil pumping assembly40further comprises a first push block43and a second push block44which are fixed on the central tube20, the first push block43is located on the left side of the trapezoidal protrusion42, and an oil hole is formed in the first push hole43. The second push block44is located on the right side of the trapezoidal protrusion42.

At the moment, due to the movement of the central tube20from left to right, the first push block43and the second push block44synchronously move. For example, when the central tube20moves rightwards, the first push block43is in sealing contact with the bevel edge of the trapezoidal protrusion42, and the second push block44is in a separated state; and when the central tube20moves leftwards, the second push block44is in sealing contact with the bevel edge of the trapezoidal protrusion42, and the first push block43is in a separated state.

Through the arrangement, oil is promoted to flow from right to left in the oil pumping space mainly through disturbance of the first push block43and the second push block44in the oil pumping space, and the oil in the oil pumping space can flow in the direction along the second push block44to the first push block43due to the movement of the central tube20from left to right, namely, the oil flows towards the oil outlet end (the oil hole of the first stop ring311). The arrow direction in the figure is the flow direction of oil.

Optionally, stop nuts45are arranged on the left side of the first push block43and the right side of the second push block44respectively. The stop nuts45are fixed on the central tube20. The stop nuts45are mainly used for positioning, and the situation that the first push block43and the second push block44are staggered in the back-and-forth abutting sealing process with the bevel edge of the trapezoidal protrusion42is avoided.

In the embodiment, referring toFIG.6, the standing valve50comprises a standing valve cover51, a standing valve core52, a spring53and a standing valve baffle54. The standing valve core52and the spring53sleeve the central tube20. The standing valve baffle54comprises a second stop ring541and a connecting ring542, the second stop ring541is in cup-joint contact with the central tube20, an oil hole is formed in the second stop ring541, and the connecting ring542is fixed with the standing valve cover51through a cylindrical pin. The spring53is located between the second stop ring541and the standing valve core52. The standing valve cover51is provided with a second protrusion511in the direction facing the central tube20, and the standing valve core52can be in sealing contact with the second protrusion511under the action of the spring53.

It can be understood that the standing valve core52, the spring53and the standing valve baffle54are arranged on the right side of the central tube20by utilizing the standing valve cover51, and the standing valve52is elastically connected with the second stop ring541through the spring53; and under the action of the spring53, the spring53abuts against the second protrusion511in a sealing mode.

The cooperation of the standing valve core52and the second protrusion511is equivalent to the oil inlet end. Specifically, when the spring53is compressed (the spring53is in a compressed state in the figure), the standing valve core52and the second protrusion511are separated to form an oil inlet, and the oil enters the oil pumping space through the oil inlet (the arrow direction in the figure is the oil inlet direction of the oil). When the spring53resets, the standing valve core52abuts against the second protrusion511in a sealing mode so that the oil inlet end is closed.

Optionally, the standing valve cover51is connected with the pump body10through an extension coupling60.

Optionally, a pump barrel joint70is further arranged at the leftmost end of the pump body10, and the pump barrel joint70is fixedly connected with the pump body10through threads.

Therefore, referring toFIG.1, the two-stroke pumping oil production device comprises the following specific using steps:

step one, resetting:

adjusting the oil production device, so that the traveling valve core32in the oil production device is in sealing contact with the first protrusion312, the first push block43is in sealing contact with the trapezoidal protrusion42, and the standing valve core52is in sealing contact with the second protrusion511;

step two, pump embedding (placement of the oil production device in the oil):

immersing at least the standing valve50of the oil pump in the oil; placing an oil layer oil production measurer in the central tube20;

step three, oil feeding:

pumping the central tube20leftwards so that the traveling valve core32and the first protrusion312are released from a sealing state and move leftwards, separating the first push block43from the trapezoidal protrusion42to move leftwards so that the pressure intensity in the oil pumping space is reduced, extruding the standing valve core52under the action of the pressure intensity through the oil on the right, and moving the standing valve core52leftwards and compressing the spring53so that the standing valve core52is separated from the second protrusion511to form an oil inlet; enabling the oil to enter through the oil inlet and enter the oil pumping space through the oil hole of the second stop ring541until the pressure intensity of the oil pumping space is balanced with the exterior, and gradually presetting the spring53to promote the standing valve core52to move rightwards and be sealed with the second protrusion511to plug the oil inlet;

step four, secondary oil pumping:

pumping the central tube20rightwards, so that cooperation of components in the oil production device is in the reset state of the first step; and at the moment, enabling most oil in the oil pumping space to flow in the direction along the second push block44to the first push block43and flow between the first push block43and the traveling valve core32under the disturbance of the push blocks (the second push block44to the first push block);

step five, oil discharging:

pumping the central tube leftwards, and at the moment, enabling the oil located between the first push block43and the traveling valve core32to overflow from the oil outlet hole of the first stop ring311under the pushing action of the first push block43; and at the moment, reducing the pressure intensity of the whole oil pumping space again, and in the state of the third step, pressurizing the standing valve core52under the action of the pressure intensity so that the oil inlet hole is opened to realize the incoming of the oil; and continuously repeating the steps to complete the pumping of the oil.

The foregoing descriptions are merely exemplary embodiments of the present disclosure, but are not intended to limit the present disclosure. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure shall fall within the protection scope of the present disclosure.