ALRDC Technical Library

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Automated Production Surveillance and Optimization System for Gas-Lifted Wells
by: Marin, Gustavo Ariel; Cadena, Mauricio; Vargas, Jose; Abarzue, Hector; Villanueva, Francisco — Added 3/29/2009 12:00:00 AMGeneral - Gas Lift Automation


Today the use of smart monitoring, surveillance and diagnostics systems for different parameters of production has a crucial importance to reduce the decision making process and accelerate the actions for production optimization.

This presentation will introduce an Automated Production Optimization Solution designed to identify problems with well performance and operating conditions and optimize the production system.

The solution includes the access and management of a high volume of data from different sources that contain low and high frequency data (daily, sporadic and sensors data) with the capability of automatic data conditioning and validation processes.

First Auto Gas-Lift Using Intelligent Completion Trialled in Petroleum Development Oman
by: Peringod, Chandran; Clark, James — Added 6/28/2009 8:59:29 PMGeneral - Gas Lift Automation


Field A is undergoing implementation of an accelerated development plan with around 40 wells drilled so far. Due to the volatile nature of the crude and high GOR, gas recycling was identified as the reservoir pressure maintenance strategy. There are 4 gas injectors in the field injecting gas into two reservoirs. As per the original development plans, no artificial lift was envisaged and model results showed sustained self flow from the wells. However, after drilling the wells and completing them, it was found that sand connectivity and continuity was far more complicated than expected. This resulted in depleting the reservoirs in certain compartments thus requiring some form of artificial lift. Further, this field will be undergoing a gas blow down project from 2012 onwards, and therefore the challenge to the well & reservoir management team to maximize recovery before gas blow down.

A series of options were considered and gas-lift was selected as the most viable artificial lift mode. Lead time for the conventional gas-lift and the cost associated with special piping materials were adversely impacting the plans and an innovative idea of auto gas-lift was proposed as an alternate to conventional gas-lift. Accordingly, well No. XX was selected for application of this technology. Auto gas-lift uses high pressure gas from a gas reservoir and admits into the tubing using an intelligent completion & special ICV with gas trim and straddle packers. A down hole pressure gauge installed on top of the packer will assist in tuning the choke settings during auto gas lifting.

This paper will explain the technology of the Auto gas-lift, intelligent completion details used in the well, results obtained, gas-lift optimization, lessons learned and way forward for artificial lift in this field.

Gas-Lift Optimization Using Dedicated Resources and Real Time Surveillance
by: Bane, Rodney — Added 3/31/2009 12:00:00 AMGeneral - Gas Lift Automation


This presentation will discuss ExxonMobil gas-lift optimization practices using dedicated resources, electronic measurement, and software applications. Several examples from fields around the world will be reviewed. Equipment, software and processes will be described.

Gas-Lift Surveillance and Optimization
by: Cramer, Ron — Added 6/24/2008 12:00:00 AMGeneral - Gas Lift Automation


Description of gas-lift optimization/surveillance problems, opportunities and solutions in light of customer experience. Emphasis will be placed on importance of knowing what the wells are producing in real time and relating that to injection gas rates. Cost effective approaches using minimal, commodity instrumentation and interfaces between software applications also will be discussed."

Implementing Gas Lift Surveillance
by: Peacock, Larry — Added 3/2/2009 12:00:00 AMGeneral - Gas Lift Automation


Continuous Gas Lift is one of the most flexible forms of artificial lift. This blessing comes with a curse. Gas Lift hides inefficiencies extremely well. Hidden inefficiencies lead to lost production, many times resulting in large production losses. Good surveillance efforts expose these inefficiencies thus increasing production in a continuous gas lift operation.
Companies that operate continuous gas lift wells often do not focus enough on surveillance. Good surveillance efforts require backing from management. A good surveillance effort requires the right data, equipment, tools and people.

Intelligent Agents for Gas Lift
by: Neil de Guzman; Lafferty, Larry — Added 6/28/2009 8:48:02 PMGeneral - Gas Lift Automation


Official Abstract Link Broken.

Short Summary:
The goal of intelligent agents is to optimize gas lift performance. The means by which they are accomplishing this is through their software which has experience program and learned in. The program will monitor, assess, recommend and explain based on the inputted experiences which included 70 abnormal instances and past experiences.

Intelligent Oilfield Operations
by: Saputelli, Luigi; Lopez, Ivan; Nunes, João Otávio L.; Ribeiro, Lidiana M. N.; Araújo, Turiassu — Added 4/15/2008 12:00:00 AMGeneral - Gas Lift Automation


There is an increasing interest from operators to optimize production costs as oil and gas fields get mature. In that sense, there has been an increasing interest from operators to automate facilities and promote the use of continuously acquired data to better manage reservoirs. Smart reservoirs and real time management of wells and facilities has been the flag that could fetch the oil industry to this century. However there is a need for more data and processes integration tools that allow better use of technology and permit optimum informed decisions. We present in this paper the application issues of well-known technologies for the optimization and control of production operations, such as integrated data management and collaborative web portals.

Real Time Production Surveillance and Optimization of Gas-Lift Wells
by: Oyewole, Peter; Adegoke, Adesola; Jones, Jason; — Added 6/21/2009 12:00:00 AMGeneral - Gas Lift Automation


In this study we want to prove the value of gas-lift optimization through production surveillance in a producing environment which was technically challenging to operate with rod pumps and show a web-enabled workflow developed for optimizing gas-lift wells using real time data. This will be achieved by provisioning the wells to allow for well data acquisition in real time, performing production surveillance on the gas-lift wells to proactively identify production issues, creating well models to predict gas lift performance, and developing a workflow based on acquiring well data in real time. The web-enabled workflow enhanced decision making in optimizing the gas-lift well continuously using real time data, which allowed the client to maintain and improve the revenue margins compared to operating with rod pumps.

Real-Time Diagnostics of Gas Lift Systems Using Intelligent Agents
by: Stephenson, Greg; deGuzman, Neil — Added 3/2/2009 12:00:00 AMGeneral - Gas Lift Automation


One of the major challenges facing users of gas lift technology is identifying underperforming wells accurately and in a timely manner. Due to limited expertise in the field, lack of resources and competing priorities, significant opportunities for performance enhancement can go undetected for many months or even years. In recent years, there have been many exciting advances in the areas of automation and intelligent systems in such fields as finance, defense and national security. Today, automation technology in the upstream E&P sector has reached a state of maturity that makes it practical to apply these technologies to key problems facing our industry.

Remote Workforce Solutions from a Global Gas Lift Help Desk
by: White, Tommy — Added 6/1/2008 12:00:00 AMGeneral - Gas Lift Automation


By fully exploiting the data and information at their disposal, E&P companies can increase efficiency, improve financial performance, maximize asset value and strengthen competitive position in a dynamic marketplace. Success depends on transforming data and information into verified, instantly accessible knowledge as a basis for real-time decision-making. This is achieved only by creating a structure around knowledge capture and sharing. This paper will review the successful implementation of gas lift knowledge solutions from a global help desk perspective and show how a virtual knowledge base can add value by enabling a remote workforce access to procedures, techniques and proven practices.