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扶正器是油井测量仪器上的一种辅助零件,由于仪器的结构不同,扶正器也有不同种类。扶正器在井下仪器上的作用,主要是克服仪器轴线偏离井眼轴心对测量结果所产生的影响,尤其对偏心影响比较敏感的侧向仪器及声波仪器,更需要性能良好的扶正器。鉴于常用的老式三爪形橡胶扶正器存在一些缺点,1981年,我们借鉴国外扶正器的形式,研制了三种侧翼式橡胶扶正器:两种裸眼井用的大型扶正器和一种套管井用的小型扶正器。前两种经过几年的试用、不论在新型数字井下仪器上,还是在老的三侧向井下
Centralizer is an auxiliary part of the well measuring instrument, due to the different structure of the instrument, centralizer also has different types. The function of the centralizer on the downhole instrument is mainly to overcome the influence of the axis of the instrument deviating from the axis of the borehole on the measurement results, especially the lateral instrument and acoustic instrument which are sensitive to the eccentricity, and need the centralizer with good performance. In view of the shortcomings of the commonly used three-prong rubber centralizers, in 1981, we developed three types of side-flange rubber centralizers in the form of foreign centralizers: two large centralizers for open-hole wells and one type of cased well Small centralizer. The first two after several years of trial, both in the new digital downhole equipment, or in the old three-way downhole