技术领域technical field
本实用新型涉及一种柱塞式液压电潜泵，属于采油工具及装备技术领域。The utility model relates to a plunger type hydraulic electric submersible pump, which belongs to the technical field of oil extraction tools and equipment.
背景技术Background technique
电潜泵采油是一种经济有效地开采地下石油而逐渐发展起来日趋成熟的一种人工采油方式，不仅可以用于油井采油，还可用于气井排液采气和水井采水注水。它具有排量扬程范围大、功率大、生产压差大、适应性强、地面工艺流程简单、机组工作寿命长、管理方便、经济效益显著的特点。电潜泵是由多级叶导轮串接起来的一种电动离心泵，除了其直径小长度长外，工作原理与普通离心泵基本一致，通过多级叶导轮的作用，流体压能逐次增高而在获得足以克服泵出口以后管路阻力的能量时而流至地面，达到石油开采的目的。Electric submersible pump oil recovery is a kind of artificial oil recovery method that has been gradually developed and matured for the economical and effective exploitation of underground oil. It can not only be used for oil well production, but also for gas well drainage and water well water injection. It has the characteristics of large displacement and head range, large power, large production pressure difference, strong adaptability, simple ground process, long working life of the unit, convenient management and remarkable economic benefits. The electric submersible pump is an electric centrifugal pump that is connected in series with multi-stage vane guide wheels. Except for its small diameter and long length, its working principle is basically the same as that of ordinary centrifugal pumps. Through the action of multi-stage vane guide wheels, the fluid pressure can gradually When the energy is increased enough to overcome the pipeline resistance after the pump outlet, it will flow to the ground to achieve the purpose of oil extraction.
然而电潜泵入井电泵机组长度受到井眼轨迹以及储层深度的限制，不适用于大斜度井、水平井等复杂井眼轨迹工况，同时由于采用多级叶导轮使得整体泵效降低，存在高功耗、高技术要求等缺点。因此，研制开发新型高效率电潜泵具有很重大的现实意义。However, the length of the electric submersible pump unit is limited by the wellbore trajectory and the depth of the reservoir, so it is not suitable for complex wellbore trajectory conditions such as highly deviated wells and horizontal wells. At the same time, the overall pump efficiency is reduced due to the use of multi-stage vane guide wheels. , there are disadvantages such as high power consumption and high technical requirements. Therefore, the research and development of new high-efficiency electric submersible pumps has great practical significance.
发明内容Contents of the invention
本实用新型的目的在于，提供一种以液压为动力的柱塞式电潜泵。The purpose of the utility model is to provide a plunger type electric submersible pump powered by hydraulic pressure.
这种柱塞式液压电潜泵，包括外壳，外壳中有潜油电机、液压泵、油箱和自动换向机构，其特征在于：所述潜油电机置于最上方，下部接液压泵和油箱，液压泵用于提供一定压力的液压油，驱动自动换向机构的活塞和柱塞上下运动，活塞位于活塞缸中，柱塞位于柱塞缸中，活塞和柱塞上下紧密相连，柱塞缸的端部有单向排油阀和排油管相连，排油管有排油口和通地表的油管相连，柱塞缸的端部还有单向进油阀和进油管相连，进油管上有入油口伸出外壳，入油口和钻井中的油液相通。This plunger-type hydraulic electric submersible pump includes a casing in which a submersible motor, a hydraulic pump, an oil tank and an automatic reversing mechanism are arranged, and is characterized in that: the submersible motor is placed on the top, and the lower part is connected to the hydraulic pump and the oil tank , the hydraulic pump is used to provide a certain pressure of hydraulic oil to drive the piston and plunger of the automatic reversing mechanism to move up and down. The piston is located in the piston cylinder, and the plunger is located in the plunger cylinder. The piston and plunger are closely connected up and down. The end of the plunger cylinder has a one-way oil discharge valve connected to the oil discharge pipe, and the oil discharge pipe has an oil discharge port connected to the oil pipe leading to the surface. The oil port protrudes from the shell, and the oil inlet communicates with the oil in the drilling well.
自动换向机构包括缸体，缸体中部固定有支承柱，支承柱中心安装有活塞杆，活塞杆两端安装有活塞，支承柱中内置有电磁换向阀，电磁换向阀在缸体上有两个孔，为进油口和出油口，液压泵的高压出油管、低压回油管分别和缸体上的进油口、出油口相连；支承柱中还有两个油道分别和支承柱上下的油腔相通，支承柱外有连通管分别和支承柱两侧的油腔远端相通，两个油道还与电磁换向阀相连通，在支承柱两侧的油腔末端，安装有活塞位置感应器，活塞位置感应器和电磁换向阀电连接，当活塞运动到油腔端部时，电磁换向阀就会互换进出油的油道，从而改变活塞运动的方向，活塞位置感应器、电磁换向阀和电池所构成的控制电路位于油箱下部。The automatic reversing mechanism includes a cylinder body, a support column is fixed in the middle of the cylinder body, a piston rod is installed in the center of the support column, pistons are installed at both ends of the piston rod, and an electromagnetic reversing valve is built in the support column, and the electromagnetic reversing valve is installed on the cylinder body. There are two holes, which are the oil inlet and the oil outlet. The high-pressure oil outlet pipe and the low-pressure oil return pipe of the hydraulic pump are respectively connected with the oil inlet and the oil outlet on the cylinder body; The upper and lower oil chambers of the support column communicate with each other. There are connecting pipes outside the support column respectively communicating with the far ends of the oil chambers on both sides of the support column. The two oil passages are also connected with the electromagnetic reversing valve. At the ends of the oil chambers on both sides of the support column, The piston position sensor is installed, and the piston position sensor is electrically connected with the electromagnetic reversing valve. When the piston moves to the end of the oil chamber, the electromagnetic reversing valve will exchange the oil passages of the oil in and out, thereby changing the direction of the piston movement. The control circuit composed of the piston position sensor, electromagnetic reversing valve and battery is located at the lower part of the fuel tank.
工作中，当活塞上行时，高压油从高压出油管经进油口、电磁换向阀直行、经上油道进入上油腔下部，上油腔上部的低压油经连通管进入下油腔下部，下油腔上部的油经过下油道、电磁换向阀直行、出油口、低压回油管回到油箱；活塞上行至油腔顶端，活塞位置感应器使电磁换向阀动作，高压油从高压出油管经进油口、电磁换向阀斜行、下油道进入下油腔上部，下油腔下部的低压油经连通管进入上油腔上部，上油腔下部的油经过上油道、电磁换向阀斜行、出油口、低压回油管回到油箱；活塞下行至下油腔顶端，活塞位置感应器使电磁换向阀动作，活塞再度上行，如此循环往复。During operation, when the piston moves upward, the high-pressure oil goes straight from the high-pressure oil outlet pipe through the oil inlet, the electromagnetic reversing valve, and enters the lower part of the upper oil chamber through the upper oil passage, and the low-pressure oil in the upper part of the upper oil chamber enters the lower part of the lower oil chamber through the connecting pipe , the oil in the upper part of the lower oil chamber returns to the oil tank through the lower oil passage, the electromagnetic reversing valve, the oil outlet, and the low-pressure oil return pipe; The high-pressure oil outlet pipe passes through the oil inlet, the electromagnetic reversing valve runs obliquely, and the lower oil passage enters the upper part of the lower oil chamber. The low-pressure oil in the lower part of the lower oil chamber enters the upper part of the upper oil chamber through the connecting pipe, and the oil in the lower part of the upper oil chamber passes through the upper oil passage. 1. The electromagnetic reversing valve moves obliquely, the oil outlet, and the low-pressure oil return pipe return to the fuel tank; the piston descends to the top of the lower oil chamber, the piston position sensor makes the electromagnetic reversing valve act, and the piston moves upward again, and so on.
本实用新型与现有技术相比的有益效果在于：The utility model has the beneficial effects compared with the prior art in that:
该柱塞式液压电潜泵采用活塞带动柱塞形式，有效减小柱塞式液压电潜泵的横截面积，可简单下入大斜度井等复杂井眼轨迹中；同时可以通过控制活塞柱塞面积比调节扬程，通过控制活塞冲次调节产液量；便于维护，换向机构结构简单，可靠性高，能耗低；以解决现有电潜泵因采用多级叶轮结构导致的整体体积大、能耗高、横截面积大不适用于大斜度井等复杂井眼轨迹的问题；解决了在含气和高粘度的油井中离心电潜泵泵效低的问题。The plunger-type hydraulic electric submersible pump adopts the piston-driven plunger form, which effectively reduces the cross-sectional area of the plunger-type hydraulic electric submersible pump, and can be easily lowered into complex wellbore trajectories such as highly deviated wells; at the same time, it can be controlled by the piston The plunger area ratio adjusts the head, and the liquid production volume is adjusted by controlling the piston stroke times; it is easy to maintain, the reversing mechanism is simple in structure, high in reliability, and low in energy consumption; to solve the overall problem caused by the multi-stage impeller structure of the existing electric submersible pump Large volume, high energy consumption, and large cross-sectional area are not suitable for complex well trajectory problems such as highly deviated wells; it solves the problem of low pump efficiency of centrifugal electric submersible pumps in gas-bearing and high-viscosity oil wells.
附图说明Description of drawings
图1为柱塞式液压电潜泵结构示意图。Figure 1 is a schematic diagram of the structure of a plunger-type hydraulic electric submersible pump.
图中：1、外壳，2、潜油电机，3、液压泵，4、油箱，5、自动换向机构，6、活塞，7、柱塞，8、活塞缸，9、柱塞缸，10、单向排油阀，11、排油管，12、排油口，13、单向进油阀，14、进油管，15、缸体，16、支承柱，17、活塞杆，18、电磁换向阀，19、进油口，20、出油口，21、高压出油管，22、低压回油管，23、油道，24、油腔，25、连通管，26、活塞位置感应器，27、控制电路，28、入油口。Among the figure: 1, shell, 2, submersible motor, 3, hydraulic pump, 4, oil tank, 5, automatic reversing mechanism, 6, piston, 7, plunger, 8, piston cylinder, 9, plunger cylinder, 10 , one-way oil discharge valve, 11, oil discharge pipe, 12, oil discharge port, 13, one-way oil inlet valve, 14, oil inlet pipe, 15, cylinder body, 16, support column, 17, piston rod, 18, electromagnetic changer Directional valve, 19, oil inlet, 20, oil outlet, 21, high pressure oil outlet pipe, 22, low pressure oil return pipe, 23, oil passage, 24, oil chamber, 25, connecting pipe, 26, piston position sensor, 27 , control circuit, 28, oil inlet.
具体实施方式Detailed ways
下面结合附图对本实用新型详细说明如下：Below in conjunction with accompanying drawing, the utility model is described in detail as follows:
在图1中，这种柱塞式液压电潜泵，包括外壳1，外壳1中有潜油电机2、液压泵3、油箱4和自动换向机构5，所述潜油电机2置于最上方，下部接液压泵3和油箱4，液压泵3用于提供一定压力的液压油，驱动自动换向机构5的活塞6和柱塞7上下运动，活塞6位于活塞缸8中，柱塞7位于柱塞缸9中，活塞6和柱塞7上下紧密相连，柱塞缸9的端部有单向排油阀10和排油管11相连，排油管11有排油口12和通地表的油管相连，柱塞缸9的端部还有单向进油阀13和进油管14相连，进油管14上有入油口28伸出外壳，入油口28和钻井中的油液相通。In Fig. 1, this plunger type hydraulic electric submersible pump comprises shell 1, and submersible motor 2, hydraulic pump 3, oil tank 4 and automatic reversing mechanism 5 are arranged in shell 1, and described submersible motor 2 is placed in the most The upper part and the lower part are connected to the hydraulic pump 3 and the oil tank 4. The hydraulic pump 3 is used to provide hydraulic oil with a certain pressure, and drives the piston 6 and the plunger 7 of the automatic reversing mechanism 5 to move up and down. The piston 6 is located in the piston cylinder 8, and the plunger 7 Located in the plunger cylinder 9, the piston 6 and the plunger 7 are closely connected up and down, and the end of the plunger cylinder 9 has a one-way oil discharge valve 10 connected to the oil discharge pipe 11, and the oil discharge pipe 11 has an oil discharge port 12 and an oil pipe leading to the surface Link to each other, the end of plunger cylinder 9 also has one-way oil inlet valve 13 and oil inlet pipe 14 links to each other, and oil inlet 28 stretches out shell on oil inlet pipe 14, and oil inlet 28 communicates with the oil in drilling.
自动换向机构5包括缸体15，缸体15中部固定有支承柱16，支承柱16中心安装有活塞杆17，活塞杆17两端安装有活塞6，支承柱16中内置有电磁换向阀18，电磁换向阀18在缸体15上有两个孔，为进油口19和出油口20，液压泵3的高压出油管21、低压回油管22分别和缸体上的进油口19、出油口20相连；支承柱16中还有两个油道23分别和支承柱15上下的油腔24相通，支承柱16外有连通管25分别和支承柱两侧的油腔远端相通，两个油道23还与电磁换向阀18相连通，在支承柱16两侧的油腔末端，安装有活塞位置感应器26，活塞位置感应器26和电磁换向阀18电连接，当活塞6运动到油腔端部时，电磁换向阀18就会互换进出油的油道，从而改变活塞6运动的方向，活塞位置感应器26、电磁换向阀18和电池所构成的控制电路27位于油箱4下部。The automatic reversing mechanism 5 includes a cylinder body 15, a support column 16 is fixed in the middle of the cylinder body 15, a piston rod 17 is installed in the center of the support column 16, a piston 6 is installed at both ends of the piston rod 17, and an electromagnetic reversing valve is built in the support column 16. 18. The electromagnetic reversing valve 18 has two holes on the cylinder 15, which are the oil inlet 19 and the oil outlet 20. The high-pressure oil outlet pipe 21 and the low-pressure oil return pipe 22 of the hydraulic pump 3 are respectively connected to the oil inlet on the cylinder body. 19. The oil outlet 20 is connected; there are two oil passages 23 in the support column 16 that communicate with the oil chambers 24 above and below the support column 15, and there are connecting pipes 25 on the outside of the support column 16 and the oil chambers on both sides of the support column. The two oil passages 23 are also connected with the electromagnetic reversing valve 18. At the end of the oil chamber on both sides of the support column 16, a piston position sensor 26 is installed, and the piston position sensor 26 is electrically connected with the electromagnetic reversing valve 18. When the piston 6 moves to the end of the oil chamber, the electromagnetic reversing valve 18 will exchange the oil passages of the oil in and out, thereby changing the direction of the piston 6 movement. The piston position sensor 26, the electromagnetic reversing valve 18 and the battery constitute The control circuit 27 is located at the bottom of the fuel tank 4 .
以上所述只是该实用新型的具体实施方式，上述举例说明不对本实用新型的实质内容构成限制，所属技术领域的普通技术人员在阅读了本说明书后可以对上述的具体实施方式做修改或变形，而不背离本实用新型的实质和范围。The above is only the specific implementation of the utility model, and the above examples do not limit the essential content of the present utility model. Those of ordinary skill in the art can modify or deform the above-mentioned specific implementation after reading this specification. Without departing from the spirit and scope of the present utility model.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520300411.2UCN204755280U (en) | 2015-05-12 | 2015-05-12 | Latent pump of plunger type hydraulic pressure electricity |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520300411.2UCN204755280U (en) | 2015-05-12 | 2015-05-12 | Latent pump of plunger type hydraulic pressure electricity |
| Publication Number | Publication Date |
|---|---|
| CN204755280Utrue CN204755280U (en) | 2015-11-11 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520300411.2UExpired - LifetimeCN204755280U (en) | 2015-05-12 | 2015-05-12 | Latent pump of plunger type hydraulic pressure electricity |
| Country | Link |
|---|---|
| CN (1) | CN204755280U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806495A (en)* | 2015-05-12 | 2015-07-29 | 天津市仕杰达能源技术开发有限公司 | Plunger-type hydraulic electric submersible pump |
| CN111173700A (en)* | 2019-12-26 | 2020-05-19 | 韩国昊 | High-pressure water pump |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806495A (en)* | 2015-05-12 | 2015-07-29 | 天津市仕杰达能源技术开发有限公司 | Plunger-type hydraulic electric submersible pump |
| CN111173700A (en)* | 2019-12-26 | 2020-05-19 | 韩国昊 | High-pressure water pump |
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| TR01 | Transfer of patent right | Effective date of registration:20240718 Address after:No. 12, North Side of Nanchun Road Middle Section, Haibin Street, Binhai New Area, Tianjin, with a budget of 300000 RMB Patentee after:Tianjin Shijieda Petroleum Engineering Technology Service Co.,Ltd. Country or region after:China Address before:No. 17, North Side of Chuangye Second Road, Haibin Street, Binhai New Area (Dagang), Tianjin, 300280 Patentee before:TIANJIN SHIJIEDA ENERGY TECHNOLOGY DEVELOPMENT Co.,Ltd. Country or region before:China | |
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