A kind of intelligent drilling pressure self-adaptive diamond pdc drill bit

Abstract

The invention relates to the field of petroleum technology, in particular to an intelligent WOB self-adaptive diamond PDC drill bit, comprising a PDC drill bit body, a drill bit blade is arranged on the top of the front end of the PDC bit body, and a plurality of fixed cutter heads are arranged on the top of the right end of the drill bit blade, The bottom of the right end of the drill blade is provided with four fixing holes, the inside of the drill blade is provided with a sliding cavity, the interior of the sliding cavity is provided with a sliding block, the right end of the sliding block is provided with four convex blocks A, and the right ends of the four stop plates are provided with All are provided with movable blocks, the right ends of the four movable blocks are provided with threaded holes, the right ends of the four movable blocks are respectively provided with movable cutter heads, the left ends of the four movable cutter heads are provided with bolts, and the left ends of the four connecting columns are provided with each other. A bump B is provided, and the four bumps A are matched with the four bumps B respectively, so that the PDC drill can adjust the cutting insert of the drill bit, and the four bolts are respectively connected with the four threaded holes, which makes the device convenient. Proceed to replace the movable cutter head.

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...

AI Technical Summary

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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