A Case Study of an Efficient and Cost-Saving ICD Completion Design to Manage Production Flow Heterogeneity in Filanovskogo Russia Field

Abstract

Typical wells in the Filanovskogo field are in a multi-zone reservoir with heterogeneous production flow profiles. The use of inflow control devices (ICD) in conjunction with zonal isolation packers, though successful, continues to evolve to improve overall ICD performance. However, in a contemporary cost-driven oil and gas market, persistent innovation has resulted in ICD performance improvement, and it has introduced changes that yield cost-effective deployment approaches, as evident in this case for Filanovskogo field. This paper details the inherent production challenges posed by the heterogeneity of Filanovskogo reservoir flow profiles. Analysis of the flow profiles facilitated an optimal inflow control modeling that efficiently balanced the production inflow across the various zones and provided means to restrict water inflow selectively. The ICD modeling yielded a solution that assured an improvement in oil recovery from the reservoir. In addition to the sought-after production benefit, the completion design incorporated equipment that collectively reduced operation sequence. The executed completion design features installation of nozzle-type ICDs fitted with premium screens and integral screen isolation valves. An in-depth look into the operational steps is provided, along with a comprehensive review of the technologies that facilitated this streamlined execution. This review includes a technical overview of the integral sliding choke sleeve of the ICD that can be actuated open/close in the future to manage water ingress. The outcome of this completion design is a solution that saves wellsite operating hours, allows execution of multiple steps simultaneously, depicts production flow balance, and ultimately delivers an enhanced oil production lifespan. This completion design has leveraged the successes from industry best practices, particularly in ICD applications, to devise a region-specific solution that is relevant in today's cash-conservative market.