Case Study: Successful Application of a Novel Conformance Treatment in an Extended Reach Horizontal Well in the Al Shaheen Field, Offshore Qatar

The thin and laterally extensive Al Shaheen reservoirs are developed with extended reach horizontal wells and large-scale<br>water injection, which over the last decade has proved to be a proficient and environmentally favorable recovery scheme.<br>This paper describes how injection water short circuiting between two horizontal wells in excess of 20,000 ft was eliminated<br>with a conformance treatment without the necessity of a costly and operationally risky well intervention. Traditionally,<br>reservoir management in terms of injection or production profile modification has been achieved with rig-based work-over<br>operations applying mechanical solutions such as cement or isolation straddles. Work-over operations utilizing drilling rigs<br>are, however, expensive, pose inherent operational risks and delay the implementation of the ongoing development plans.