Oilfield Technology Article

Introduction to an Environmentally Friendly, High-Temperature Cement Spacer Designed to Prevent Losses While Cementing

A new-generation, high-temperature cement spacer has been designed to address lost circulation issues and protect fragile formations by creating a ‘shield’ across the formation matrix. This Wellbore Shielding Spacer (WBS Spacer) provides a low-invasion shield, or barrier, protecting the formation and a progressive rheology profile which assists in removing mud/debris prior to cement placement in weak formations, thus greatly reducing or eliminating the need for costly remedial cement treatments.

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