Well bottom booster pump and its supercharging method

A booster pump and booster cylinder technology, applied in drilling equipment and methods, drilling equipment, earthwork drilling, etc., can solve the problems of fast moving parts, short service life, insufficient impact force, etc., to reduce drilling costs , Improve the drilling speed and shorten the drilling cycle
CN101403279AActive Publication Date: 2009-04-08ZHONGCHAO LIANHE ENERGY SCI & TECH BEIJING CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
ZHONGCHAO LIANHE ENERGY SCI & TECH BEIJING CO LTD
Publication Date
2009-04-08

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Abstract

The invention discloses a bottom hole pressure pump and a pressurizing method thereof, wherein, the pressure pump mainly comprises a filter screen assembly, an upper end connector, a shell, a lower end fastening and an assorted double-channel drill bit. A change valve, a reversing control device, a power cylinder and a pressure cylinder are arranged in the shell sequentially, the lower end of the filter screen assembly is connected with the upper end connector by threads, the lower end of the upper end connector is connected with the shell by threads and sealed, the lower end fastening is connected with the shell by threads and sealed, and the left end of the lower end fastening props against the right end of the pressure cylinder, and presses and connects the change valve, the power cylinder and the pressure cylinder in the shell with a locking part arranged in the upper end connector. The invention can drastically improve the drilling speed, reduce the drilling cost and shorten the drilling period, and has relatively simple structure, short total length, low movement velocity, long service life, low manufacturing cost and high performance-price ratio.
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Description

technical field

[0001] The invention relates to oil drilling equipment, in particular to a well bottom booster pump capable of increasing the drilling speed in medium-hard rock formations and a booster method thereof. Background technique

[0002] At present, in the field of oil drilling, the pumped mud output by the ground mud pump is used as the power of the booster pump, pressurized at the bottom of the well and cooperated with the dual-channel drill bit to realize the combined rock breaking of water and machinery, thereby greatly increasing the drilling speed and shortening the drilling time. It is an ideal technical measure to shorten the drilling cycle and reduce the drilling cost.

[0003] However, under the condition that the bottom hole booster pump satisfies various drilling parameters, how to make the bottom hole booster pump reach the required value for industrial applications and keep the service life of the drill bit as close as possible has become a key factor...

Claims

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