ZONAL ISOLATION Well Data Russia Location: Oil Producer 2007 Well Type: Installation Date: Case Studies: Cement Integrity Swellable Elastomers Cement Integrity equipment with elastomer(s) mounted on or along a casing/tubing There are two types of cement integrity applications, micro-annulus and full-bore. If the client is concerned with a micro-annulus forming after the cement job, a minimal OD packer is recommended which will seal off without affecting Equivalent Circulation Density (ECD). If there are concerns about total losses of cement then a full bore swellable packer can be placed above the planned Top of Cement (TOC) to provide a backup to the cement. At times, clients anticipate issues with the cement job and use the swellable packers as a replacement to cementing. Case Hist

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