MicroChannel Remediation of a Cement Packer Unlocks Mature-Field Potential

摘要

Well RXY is located in Cairn's Ravva offshore field in the Krishna-Godavari Basin in India.One goal for the field was significant crude production by means of a secondary reservoir section.This paper presents a case study concerning rigless remediation of microchannels in the cement packer(placed in the annulus of production tubing and casing to isolate the producing zone)and discusses laboratory development of a customized epoxy-resin system,simulations to estimate channel size,3D displacement modeling,drillout after placement,and evaluation post-placement.