Downhole pressurizer and downhole pressurization method
A technology of supercharger and pressure fluid, which is applied in the direction of drilling with liquid/gas jets, etc., can solve the problems of speeding up drilling machinery, not being able to be widely used, and having a short service life, so as to improve the drilling speed, reduce investment, and prevent The effect of hard impact
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[0032] like figure 1 , figure 2 , image 3 As shown, a bottom hole booster provided by the present invention at least includes: a check valve 8, an upper joint 7 connected to the lower end of the check valve 8, an outer cylinder fixedly connected to the lower end of the upper joint 7 4. The spline joint 3 fixedly connected to the lower end of the outer cylinder 4, the hollow mandrel 2 whose upper end is slidably connected to the inner wall of the outer cylinder 4 through the hollow piston 5 (the sliding stroke is generally 3-5 meters), and the The lower joint 1 connected to the lower end of the mandrel 2 and the spring 6 arranged in the outer cylinder 4 and between the upper joint 7 and the piston 5 . Among them, such as figure 1 As shown, the splined joint 3 and the outer cylinder 4 are in sliding connection with the mandrel 2 .
[0033] During installation, the upper end of the check valve 8 can be connected to the drilling tool through the bypass valve 9, and the lower...
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