Samarang field, operated by PETRONAS Carigali Sdn Bhd (PCSB) is located offshore Sabah, Malaysia with first oil in 1975. The field is undergoing a major redevelopment project with Integrated Operations (IO) being part of initiatives that covers re-instrumentation, telemetry and telecommunication infrastructure installation, Collaborative Working Environment construction and Workflows implementation. Samarang Integrated Operations was designed as an Asset Management Decision Support solution to improve the quality and efficiency of decision processes through implementation of a real time production, reservoir and process surveillance system.Understanding and analyzing the asset performance is not an easy and well-defined process in the current state of operations in Samarang. Lack of proper instrumentation to measure the actual production parameters, delay in data transfers from field operations to office, manual data processing, delay in model updates and a long decision cycle have made it difficult to assess the accurate status, diagnose issues and optimize the production. In order to overcome these challenges and to improve field awareness, 5 workflows were designed and deployed in order to achieve an early milestone of providing real time well performance monitoring, surveillance and optimization. These workflows are:
Upfront investment and capital commitment is required in installing Intelligent Completion (IC) in ‘S’ Field. Without diligently using real-time sensor data, IC becomes an expensive Sliding Sleeve Door (SSD). A real-time surveillance and analysis tool was developed to maximize IC zonal control decision-making for commingled production optimization. It enables user to utilize fully the hardware to improve production and to extract production and reservoir information for subsequent Enhanced Oil Recovery (EOR) workflow input. The analysis platform connects to real-time data source and performs calculations converting sensor data into knowledge [i.e. zonal flow rates, productivity index (PI) and reservoir pressure (P*)] and intelligence (i.e. zonal production optimization). User will spend minimal time on data gathering instead maximum time optimizing production by analyzing the trending and diagnostic plots. IC is surface controllable multi-position zonal downhole sensors that read tubing and annulus pressure, tubing and annulus temperature and flow control valve (FCV) positions. ‘S’ Field installed IC in nine wells and is in the late production life of initiating an EOR multi-zone production optimization. However, under-utilized sensor data and trial-and-error zonal-control method led to suboptimal response time, production delay and reactive mitigation action. Furthermore, there are persistent difficulties of integrating multi-zone downhole sensors with surface well-test data in a single analysis platform to improve production or reduce watercut. This paper will outline how the integrated analysis platform will help both operational and subsurface team in making faster and guided decision to maximize the reservoir recovery in an Enhanced Oil Recovery (EOR) Integrated Operation IO. The tool was developed and tailored to complement IC installation in maximizing zonal control decision-making and zonal performance monitoring, specifically for commingled production. It is a customized solution to utilize zonal IC downhole data to enable field-wide EOR performance monitoring and trending advantages in ‘S’ Field EOR project.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.