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Micro eye expander

For the wellbore quality problems caused by borehole steps and keyways, although the drilling and post-drilling reaming can be solved, the number of drilling is large and the efficiency is low, while the micro-reamer while drilling has significant advantages in eliminating the borehole steps, reducing the number of drilling and improving drilling efficiency.

Classification:

Well Intervention Tools

Key words:

PETROZHR

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Detailed Description

For the wellbore quality problems caused by borehole steps and keyways, although the hole can be solved by scratching and drilling after drilling, the number of drilling is large and the efficiency is low, while the micro-reamer while drilling has significant advantages in eliminating borehole steps, reducing the number of drilling and improving drilling efficiency.

The

micro-reamer while drilling adopts an eccentric structure, the tool structure is simple, there are no moving parts, the diameter is smaller than the size of the drill bit, and the reaming is slightly larger than the original wellbore, forming a smooth wellbore, ensuring the safety and smoothness of the later drilling, electrical measurement, casing and other operations.

Features of Micro Eye Reamer While Drilling

● Eccentric structure: the diameter is smaller than the size of the drill bit, and the reaming is slightly larger than the original borehole;

● Spiral cutter wing: to ensure that the cutting teeth can be protected when passing through the casing, with reliable stability and durability;

● Double cutting structure: it can realize forward reaming and inverted eye;

● One-piece structure: there are no moving parts and welded parts, and there is no risk of tool parts falling into the well.

● Helps to eliminate or minimize minor dog legs, forming a smoother borehole trajectory;

● Stir the cuttings bed to improve the cleaning effect of the bottom of the well;

● Eliminate the need for short starting and drilling;

● Eliminate redundant well operations;

● No restrictions on temperature, drilling speed, etc.

project	parameter
length	1170mm
body outer diameter	168mm
maximum diameter	202.4mm
adapt to the borehole	215.9mm
the enlarged dimensions	220mm
buckle type	411×410
inner diameter	76.2mm
tensile strength	6664KN
torsional strength	159KN•m
number of blades	2 groups of 8