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Intelligent Circulation While Drilling

PETRONAS
Screenshot 2025-10-30 093901

Intelligent Circulation While Drilling

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Description :

iCWD™ is a circulation sub integrated into the Bottom Hole Assembly (BHA) during drilling operations.
It features a remotely controlled 3-way valve system, allowing drillers to seamlessly switch between multiple operational modes:

  • Normal Drilling Mode

  • Bypass Mode

  • Hole Cleaning Mode

  • Isolation Mode

Technology Readiness Level (TRL) :

0

Application

-Lost Circulation Material (LCM) Placement. -Cementing at losses zone - In severe losses cases, placement cement plug is possible through BHA without the need to pull out of the hole. -Hole Cleaning. -Isolation Mode - Downhole isolation mode to isolate the top pipe from BHA.

Features

-Quick and efficient LCM placement while protecting sensitive BHA tools against damage. -Hole cleaning helps to remove cutting Beds, which is a source of stuck pipe, particularly while pulling out of hole.
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