Software System Enables Effective Flow-Assurance Management

摘要

Access to real-time production and injection data is of great benefit to the production optimization engineer.This paper describes a smart management system used for retrieving and evaluating all flow-assurance-related data for more than 700 of the operator's onshore and offshore wells.The paper discusses system architecture,interface details,design,functionality,visualization,application,and benefits.Introduction Cairn Oil and Gas is the operator of three major blocks currently producing in India: Block RJ-ON-90/1(Rajas-than),CB/OS-2(Cambay Basin),and PKGM-1(Ravva) constituting more than 700 wells,operated on behalf of its joint venture partners.These wells are either self-flowing or use a variety of artificial-lift systems.Waterflooding provides pressure maintenance in most fields.Injectivity of water injectors is,therefore,critical in maintaining levels of water injection required to achieve the stipulated recovery factor.Formation fluids have physical and chemical properties that have posed several flow-assurance challenges over time with regard to outflow performance and processing in surface facilities.These flow-assurance issues include inorganic scaling,organic scaling,corrosion,sand production,injectivity decline,and injector conformance,all of which can affect productivity and injectivity of the fields and thus lead to relatively inefficient waterflood.