FacsWax™ is a waxed FacsRite screen. The treatment seals FacsRite filter media discs which allows the sand control liner to be circulated, or floated to depth and prevents the filter media from being plugged.
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The process involves coating and temporarily sealing the sand control elements that are flush mounted into base pipe. FacsRite media is made from conventional two dimensional premium screen media. The wax treatment is tailored to the reservoir temperature and conditions. For very heterogeneous sands Tri-D FacsRite should be considered, and the same wax treatment can applied to create Tri-D FacsWax.
Deploying conventional screens into long laterals is difficult due to increased torque and drag, risk of getting stuck, and permanent formation damage. Conventional gap based screens generally lack the strength to push/rotate past tight sections. Adding a washpipe with seal assemblies to allow circulation through tight sections and cleanup of formation damage increases the torque and drag forces, as well as rig time and completion costs.
Sealing the screen allows it to be either circulated without a washpipe or floated to depth, thus reducing torque and drag which is an important consideration for extended reach wells. FacsRite’s enhanced strength allows additional pushing/rotation to get past tight sections. Mud conditioning requirements are reduced because the disks are protected. After reaching TD the mud can be recovered for reuse and replaced with a completion fluid to minimize formation damage, making startup easier and quicker.
FacsWax gives operators a high performance sand control liner and the ability to:
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FacsWax builds on the proven sand control capability of FacsRite and simplifies liner deployment and well clean-up for these applications:
The wax treatment is tailored to most reservoir temperature and conditions.
A variety of screens can be treated with the patent pending WaxRite Process: