Pump valve structure optimization test analysis device based on working condition characteristics
A test analysis and pump valve technology, applied in the field of pump valve structure optimization test analysis device, can solve problems such as valve cover penetration
Active Publication Date: 2019-11-22
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
This patent is mainly used to solve the problem that the existing oil well pump penetrates through the valve cover due to the large impact force of the oil in the production of medium-deep wells and high water-cut wells by making corresponding improvements on the basis of the ordinary valve cover structure.
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[0052] Example: such as Figure 5 As shown, taking Well X in Jiangsu Oilfield as an example, the stroke is 2.86 meters, the stroke frequency is 2.8, the pump diameter is 32 mm, the pump depth is 1601.80 meters, the maximum load is 48.73 kN, the minimum load is 21.96 kN, the daily liquid production is 2.99 cubic meters, and the operation status is normal , All structures of the tubular combined pump barrel refer to the national standard SY / T5059-2009. First, test the flow change of the oil well pump within a unit minute: the oil well pump has 3 strokes, and the oil well pump can perform up and down strokes three times per unit minute; then, test the flow change under different media, different well inclinations, and different drives. Water and diesel are used as two media, and the well inclinations are respectively 37.5°, 50°, 14° and 32°. The drive is divided into circular drive, elliptical drive, ellipse major axis offset downward, ellipse minor axis right offset, and ellipse...
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The invention relates to a pump valve structure optimization test analysis device based on working condition characteristics, which comprises a driving part, a tension part, a guide rail part, an oilpumping part and a testing part, wherein the driving part is connected with a crank rocker part; the guide rail part is arranged on one side of the crank rocker part; the oil pumping part comprises anoil pump and a pump platform; the oil pump comprises an oil pumping rod; a suspension rope part is arranged on the oil pumping rod; the oil pump is made of a transparent material; and the testing part is arranged on the suspension rope part. Based on test and detection of a test system, the obtained displacement track curve and the speed acceleration curve of a traveling valve and a fixed valve can determine the valve maximum limit position distribution diagram involved by the valve under different working conditions; and then, based on calculation parameters such as pump efficiency flow, cracks of a valve cover caused by frequent collision between the traveling valve and the traveling valve cover are calculate, and the structural size parameters of the traveling valve, the fixed valve, the traveling valve cover and the fixed valve cover are optimized under different well deviations and in different crude oils to obtain the optimal structural size parameters.
Description
technical field [0001] The invention relates to the field of petroleum development, in particular to an optimal test and analysis device for pump and valve structures based on working condition characteristics. Background technique [0002] Rod pump pumping is still an important part of pumping unit systems in the contemporary world. With its high reliability and stability, the rod pump pumping system occupies the vast share of the world's oil production market. However, there are many problems such as high energy consumption and low efficiency in pumping oil with rod pumps. Starting from the effect of energy saving and emission reduction, due to the particularity of oil exploitation, crude oil is often extracted at a depth of several thousand meters underground, and it is extremely difficult to simulate its environment. If the effective simulation test of the rod pump oil recovery process can be carried out indoors, it will be of great help and value to improve oil recove...
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IPC IPC(8): G01M13/003
CPCG01M13/003
Inventor 段志刚王志储明来司志梅
Owner CHINA PETROLEUM & CHEM CORP