Rotational flow pulse type sand washing pen point
A pen tip and pen holder technology, which is applied in the field of oil production, can solve the problems of insufficient impact force of the sand washing pen tip and excessive hardness of the top of the sand bridge, and achieve the effect of increasing strength and strength and speeding up the process
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[0028] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the present invention will now be described with reference to the accompanying drawings.
[0029] Such as figure 1 As shown, the swirling pulse sand washing pen tip of the embodiment of the present invention comprises:
[0030] Body 2, the body 2 is tubular, the body 2 has a body cavity, and the body cavity includes: a cylindrical sliding channel 20 and a groove 8 connected to the end of the sliding channel;
[0031] The spring pressing ring 3 is arranged on the first end of the body 2 ( figure 1 The lower end of the middle), the spring pressure ring 3 fastens the bearing 4 on the inner step of the upper end of the body 2 through a screw;
[0032] Press cap 9, the second end of closure body 2 ( figure 1 in the upper end);
[0033] The pen core 6 is slidably arranged in the sliding channel 20; the pen core 6 includes: a solid cylindrical closed end 61, a...
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