Plunger for borehole sucker rod pump, has helical groove that is made with angle of elevation of helical line greater than angle of natural slope, that is greater than 30 degree, and bottom of groove is made radial
	ZAIROV B F; DMITRY B
	2024-08-08
专利权人	TATNEFT STOCK CO (TATN-Non-standard)
申请日期	2024-08-08
专利号	RU229826-U1
成果简介	NOVELTY - The plunger has a helical groove on an outer surface, where the helical groove is made with an angle of elevation of a helical line greater than an angle of natural slope, that is greater than 30 degree, and a bottom of the groove is made radial, and volume of the helical groove is greater than the volume of mechanical impurities contained in the volume of fluid leakage formed in gap of the plunger pair during a double stroke. Liquid is located in the above-plunger cavity due to pressure difference, to wash out mechanical impurities located in the groove into a below-plunger cavity 10, that includes a groove elevation angle of more than 30 degrees and a radius bottom, when the plunger moves upward. USE - Plunger for a borehole sucker rod pump for use in oilfield. ADVANTAGE - The bottom of the groove is made with radius without corners so as to prevent mechanical impurities from getting stuck. The angle of the helical line of the groove is greater than the angle of natural slope so as to ensure guaranteed washing out of mechanical impurities from the groove. The plunger increases the efficiency of well operation using the sucker rod pumps with a high content of mechanical impurities in the produced liquid by minimizing the wear of the plunger pair. DESCRIPTION OF DRAWING(S) - The drawing shows a cross sectional view of a plunger of a borehole sucker rod pump.
IPC 分类号	F04B-047/00
国家	俄罗斯
专业领域	化学化工
语种	英语
成果类型	专利
文献类型	科技成果
条目标识符	http://119.78.100.226:8889/handle/3KE4DYBR/15506
专题	中国科学院新疆生态与地理研究所
作者单位	TATNEFT STOCK CO (TATN-Non-standard)
推荐引用方式 GB/T 7714	ZAIROV B F,DMITRY B. Plunger for borehole sucker rod pump, has helical groove that is made with angle of elevation of helical line greater than angle of natural slope, that is greater than 30 degree, and bottom of groove is made radial. RU229826-U1[P]. 2024.

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