Intelligent bit pressure self-adaptive PDC bit

Abstract

The invention relates to the technical field of petroleum, in particular to an intelligent bit pressure self-adaptive PDC drill bit. The PDC drill bit comprises a PDC drill bit body, a drill bit blade is arranged at the top of the front end of the PDC drill bit body, a plurality of fixed tool bits are arranged at the top of the right end of the drill bit blade, four fixing holes are formed in the bottom of the right end of the drill bit blade, a sliding cavity is formed in the drill bit blade, a sliding block is arranged in the sliding cavity, four protruding blocks A are arranged at the right end of the sliding block, movable blocks are arranged at the right ends of four blocking discs, threaded holes are formed in the right ends of the four movable blocks, movable tool bits are arranged at the right ends of the four movable blocks correspondingly, bolts are arranged at the left ends of the four movable tool bits correspondingly, protruding blocks B are arranged at the left ends of four connecting columns correspondingly, and the four protruding blocks A are matched with the four protruding blocks B correspondingly. The PDC drill bit has the advantages that a drill bit cutting blade can be adjusted, the four bolts are connected to four threaded holes in a threaded mode correspondingly, and the movable tool bits of the device are convenient to replace.

Description

technical field [0001] The invention relates to the field of petroleum technology, in particular to an intelligent pressure-on-drill adaptive diamond PDC drill bit. Background technique [0002] As we all know, during the drilling process, most of the well sections will pass through a large number of interactive formations, and the lithology in these formations changes rapidly, which brings challenges to the conventional PDC bit design. The traditional bit usually only has one fixed The cutting bit, and its design optimized for only one rock type, cannot be changed once installed on the BHA and lowered into the wellbore. Contents of the invention [0003] (1) Solved technical problems [0004] Aiming at the deficiencies of the prior art, the present invention provides an intelligent pressure-on-bit self-adaptive diamond PDC drill bit that can adjust the cutting blade of the drill bit and facilitate replacement. [0005] (2) Technical solution [0006] In order to achiev...

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Problems solved by technology

[0002] As we all know, during the drilling process, most of the well sections will pass through a large number of interactive formations, and the lithology in these formations changes rapidly, which brings challenges to the conventional PDC bit design. The traditional bit usually only has one fixed cutting bit, and its design is optimized for only one rock type, once installed on the BHA and lowered into the wellbore, it cannot be changed

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