Simulator for simulating torsional deformation and elastic recovery of sucker rod string
A sucker rod string and elastic recovery technology, applied in the field of petroleum machinery, can solve problems such as hidden dangers in application and difficulty in simulating downhole working conditions
Inactive Publication Date: 2014-04-30
NORTHEAST GASOLINEEUM UNIV
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Problems solved by technology
At present, various anti-reversal mechanisms are installed on the driving device of the screw pump. Only when these mechanisms are actually working on site can we know whether their braking performance is reliable, which brings hidden dangers to the application on site, and there is no research on them A special device for detection, because it is difficult to simulate the downhole working conditions
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[0013] The following description is merely exemplary in nature and is not intended to limit the invention, application and uses. It should be understood that throughout the several drawings, corresponding reference numerals indicate like or corresponding parts and features.
[0014] The following will refer to Figure 1 to Figure 4 A simulator for simulating torsional deformation and elastic recovery of a sucker rod string according to a first embodiment of the present invention will be described.
[0015] Such as figure 1 with figure 2 As shown, the simulator for simulating the torsional deformation and elastic recovery of the sucker rod string according to the first embodiment of the present invention includes a head member 1, an intermediate connecting member 2 and a tail member 3, and one end of the head member 1 ( figure 2 The right end of the 1) has a square convex part, the square convex part is used to connect with the fixed part (for example, the fixed part is fi...
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The invention provides a simulator for simulating torsional deformation and elastic recovery of a sucker rod string. The simulator comprises a head component, a middle connecting component and a tail component, a square protrusion is arranged at one end of the head component, a first inward-concave sleeve is arranged at the other end of the head component, a first cylindrical part matched with the first inward-concave sleeve is arranged at one end of the middle connecting component, a second inward-concave sleeve is arranged at the other end of the middle connecting component, a second cylindrical part matched with the second inward-concave sleeve is arranged on the tail component, a first annular sliding groove and a second annular sliding groove are formed in the inner sides of the radial directions of the bottoms of the first inward-concave sleeve and the second inward-concave sleeve, a plurality of first cylinders and a plurality of second cylinders which are connected with one end of a first elastic element and one end of a second elastic element respectively are integrally formed on the upper edges of the end portions of the first cylindrical part and the second cylindrical part, the other end of the elastic element and the other end of the second elastic element are fixedly connected in a threaded hole in the bottom of the first inward-concave sleeve and a threaded hole in the bottom of the second inward-concave sleeve, and the first cylinders and the second cylinders can slide along the first annular sliding groove and the second annular sliding groove under the action of the first elastic element and the second elastic element.
Description
technical field [0001] The invention relates to the technical field of petroleum machinery such as the sucker rod string of an oil production screw pump, in particular to a simulator for simulating the torsional deformation and elastic recovery of the sucker rod string. Background technique [0002] As a kind of oil lifting equipment, the screw pump has the characteristics of simple structure, convenient operation, small footprint, energy saving, etc. At the same time, it has high efficiency and can be widely used in oil layers with high viscosity and sandy impurities. The incomparable advantages of plug pumps and electric submersible pumps. Because the well is very deep, usually more than 1,000 meters, a large amount of elastic torsional potential energy will be stored in the sucker rod string, and this energy will be released quickly when the screw pump is stopped or stuck, causing the screw to reverse, endangering the safety of equipment and personnel . At present, var...
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Inventor 李大奇韩道权祖海英叶卫东杜秀华宋玉杰
Owner NORTHEAST GASOLINEEUM UNIV