Description

The SMART BLADE™ Scraper Mill is a heavy-duty wellbore clean out tool suitable for all downhole conditions including HPHT and Extended Reach wells. Tool designed for the removal of mud, cement, bullets, rust, scale, paraffin, perforation burs and other obstruction from casing and Liner well bore through rotation and reciprocation. Future wellbore operation clean the casing ID is important. SMART BLADE™ Scraper Mill can run separately or as part of a comprehensive wellbore clean-out assembly. SMART BLADE™ Scraper Mill incorporate with drifted dia watermelon mill and centralizers to clear all type of obstruction from casing/liner in single run. This will eliminate additional mill run equals save the time and cost. SMART BLADE™ Scraper Mill designed with long and tapered edge blades for passing through joints without getting held up while vertical or rotational operations. Additional full circle blades are spaced to contact 2 x 360 degree, almost two complete circle, which same pattern of non-rotating scraper not available in the market. The alloy bearings feature is very rigid for both axial and radial elements to allow extended rotation in harsh environments preventing tool and casing wear.

Tool Operations

• The SMART BLADE™ Scraper Mill usually run with pin down, it can be run alone or as part of a comprehensive wellbore clean-out or drilling BHA. Each scraper sleeve configuration overlapped by the row on the bottom.
• Advisable to run scraper is the first tool above the bit in ahead of brush, magnet or any other wellbore clean out tools in the BHA.
• Scraper made up on the string and running in hole scraping operation begun rotating or spudding as desired. While running in hole any held up or obstruction rotate the string watermelon mill will clear off the restriction. Watermelon mill clear off all the cement bridges without compressing or collapse the scraper blocks.
• Recommend placing SMART BLADE™ Scraper Mill minimum 1 full joint above the bit.
• While drilling and scraping combined operation pick up the string frequently and keep off bottom to circulate the well clean and clear the cuttings debris from wellbore. Deviated well recommend to reciprocating the string minimum one joint intermediately and maintain minimum 135-150 FT/Min Annular velocity.
• Mitigate to the risk 4½” – 5½” SMART BLADE™ Scraper mill scraping while drilling not advisable, contingency plan just for short length of cement plug.