Scrow oil pumping pump
An oil pump and screw technology, which is used in the field of oil production equipment in oil fields, can solve the problems of low strength of the sucker rod, low service life, and small application range of the screw oil pump, so as to save equipment costs, improve service life, and achieve large rotational inertia. Effect
Inactive Publication Date: 2008-01-23
潍坊盛德石油机械制造有限公司
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- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The technical problem to be solved by the present invention is to provide a screw oil well pump in which the sucker rod is eliminated and the rotor is driven by the oil sucker tube, so as to solve the problem of the low strength of the sucker rod in the prior art, which causes the screw oil pump to have a small application range and a low service life. technical flaw
Method used
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Embodiment Construction
[0010] As shown in Figure 1, a screw oil well pump includes an oil well pump housing 4, a stator 5 fixed in the oil well pump housing 4, and a rotor 6 located in the cavity of the stator 5, and the top end of the rotor 6 passes through the tube The joint 2 is fixedly connected with the oil extraction pipe 1, and the rotor 6 is provided with an oil outlet passage 61 along its axial direction, and the oil outlet passage 61 communicates with the cavity in the oil extraction pipe 1, and the oil well pump housing The upper end of 4 is an oil inlet, and the bottom end of clumsy oil pump housing 4 is fixedly connected with oil well pump sump 7. The direction indicated by the arrow in Fig. 1 is the oil flow direction during the oil pumping process.
[0011] The upper end of the oil well pump housing 4 as the oil inlet is provided with an oil filtering device. This oil filtering device is fixed at the oil inlet of the oil well pump housing 4 and has several filter holes 31 on its side ...
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The invention discloses a screw oil well pump. It includes oil well pump body, stator and rotor. The top of the rotor is steadfastly connected to oil pumping pipe. And an oil outlet which is connected to the cavity of the oil pumping pipe is set along the axial direction in the rotor. The up-end of the oil well pump body is oil inlet. The oil well pump drain pan is steadfastly connected to the bottom of the oil well pump body. When it works, the oil pumping pipe drives the rotor to rotate in the cavity of the stator. The oil would be carried to the bottom off the oil well pump body from the top of it. The oil is delivered into the oil pumping pipe through the oil outlet set along the axial direction inside the rotor. Then, the oil is delivered onto the ground. The oil pumping pipe has high moment of inertia and has the function of delivering oil and transmitting power, so the invention saves the device cost and improve the working life of the device.
Description
technical field [0001] The invention relates to oil production equipment in an oil field, in particular to a screw oil well pump. Background technique [0002] There are two types of oil well pumps used in oilfields: one is plunger oil well pump and the other is screw oil well pump; plunger oil well pump is gradually replaced by screw well pump due to the disadvantages of large volume, high cost and low efficiency of its driving equipment. oil pump instead. The structure of the existing screw oil well pump is shown in accompanying drawing 2, it comprises the oil well pump housing 4, the stator 5 fixed in the oil well pump housing 4 and the rotor 6 located in the cavity of the stator 5, the top of the rotor 6 is connected with the pump The oil rod 8 is fixedly connected, and the upper end of the oil well pump housing 4 is fixedly connected with the oil suction pipe 1. Rotating in the cavity, the oil enters the oil suction pipe 1 upward through the bottom of the clumsy oil p...
Claims
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IPC IPC(8): F04B47/02F04D3/02E21B43/00
Inventor 贺波单连茂
Owner 潍坊盛德石油机械制造有限公司