Gas lift plays an important role in esso production malaysia inc. Gas lift optimization and troubleshooting 4142015 instructor. Several factors may affect the choice of an injection gas pressure. Since injection gas is limited in offshore facilities, each well cannot use its optimum gas injection rate. He is on the api and spe committees for electrical submersible pumps, gas lift, and artificial lift systems, and is a member of the panel for the esp roundtable.
Working with production supervisor to experience offshore working environment. The avocet gas lift optimization module delivers an integrated gaslift optimization and. Gas lift optimization is crucial to ensure maximum oil production within facility constraints. Improvement of production reporting system to reduce the workload as well as its accuracy. Optimal allocation procedure for gaslift optimization. Xlift artificial lift technology enables reliable highpressure gas lift operations in deepwater subsea wells by increasing the operating gasinjection depth, improving efficiency and increasing production with optimal performance. When the reservoir pressure declines, the production oil rate decreases and falls below the economic limit. Gas lift optimization chemical management kpi dashboarding production monitoring enhanced. Automation for intermittentgaslift oil wells, paper. Optimization of lift gas allocation in a gas lifted oil field. A proper lift optimization can reduce the operating cost, increase the net present value npv and maximize the recovery from the asset. To obtain the maximum benefit from the injected gas, it must be injected as near the producing interval as possible. The results were field tested in three wells in three different fields located in southern iran. Consider gas lift figure 1, the second most common form of artificial lift in the united states behind sucker rod pumping.
The oil eld consists of ve gas lifted oil wells which share the lift gas from. This session is intended to assist analysts in generating the best variables, such as monthly amount paid, daily number of received customer service calls, weekly worked hours on a project, or annual number total sales for a specific product, by using simple arithmetic operators square root, log. Engineering and asset management teams equipped with one virtual source are leading the push towards integrated operations through virtual data integration of distributed databases, realtime. This paper presents a survey of methods and techniques developed for the solution of the continuous gas lift optimization problem over the last two decades. This course explains the administration tasks required to setup and run avocet software. Gas lift rate optimization study was conducted to maximize the production and the economics of this development option. Monitorsoptimizes artificial lift including plunger lift, intermitters, capillary stringsoap injection, velocity string, well head compression, rod pump, and gas lift adjust settings to maintain critical flow rates. Sonny irawan dissertation submitted in partial fulfillment of the requirements for the msc. Abstract many oil and gas companies are joining the wave of forward looking operators implementing intelligent well and smart field technologies to improve their ability to optimise production, minimize expenses, and improve reserve recovery. Conduct intelligent alert management, forecast management, and model management. Gas lift gas lift systems using standard camco gas lift products and services and the new xlift highpressure and perflift perforated zone gas lift systems. For example, in one embodiment, a method of allocating an applied resource throughout a well network includes receiving topological data into an analytical model of. Optimizations potential value increases proportionately with increasing operational scope and complexitywhether dealing with large numbers of wells, multiphase production flows, or both. However, one primary factor stands out above all others.
Ehsan salehi reservoir engineer software developer. Issuu is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online. The production data singularity hector escalona morten siljuberg. This improves recovery by reducing the bottomhole pressure at which wells become. Pdf production optimization using gas lift technique jarjis muhammad academia. Avocet manual can be accessed by clicking on the highlighted square 69 figure 30. Gas lift properties to open this dialog, doubleclick a tubing object. Gas lift technique a tool to production optimization. Avocet gas lift manager software is a comprehensive gaslift surveillance and management solution that uses realtime data. Gas lift optimization greener scholarly publications. Gas lift optimization efforts and challenges onepetro. If production targets cannot be met, it determines how to make best use of the existing lift gas resources by allocating it preferentially to the wells that can make the best use of it. Methods and systems for performing well network production optimizations are described.
Avcaj1 avocet component allocations oasnv1 ofm pipesim avocet ofm. As oil fields mature, the production facilities need to handle increasing water and gas. Gas lift is an artificial lift method which is commonly used in offshore operation with sufficient gas sources as it consumes minimum space on the platform. Gas may be injected continuously or intermittently, depending on the producing characteristics of the well and the arrangement of the gas lift equipment 3,4,5. The aim of this project is to make a comparative study between continuous and intermittent gas lift systems based on real data from an oil well in algeria, and to choose the system best suited to increase the production of the well. The main goals in the design of a gas lift well are to find the depths, area. Avocet administration i the avocet administration i course provides a basic understanding of avocet architectural components, with emphasis on data integration for both low and high frequency data. Chapter 5 total system analysis applied to gas lift design. Avocet gas lift optimization module schlumberger software. Artificial lift system surveillance and optimization flow rate measurement in unstable, foaming, or emulsionprone wells and lowrate producers production measurement for resources ranging from heavy oils to gas condensates.
Set the artificial lift method to gas lift, then click properties under artificiai lift. These workflows often deal with optimizing artificial. While some methods are clearly limited due to their neglect of treating the effects of inter. Worldwide subsea services locations global reach, lifeoffield focus throughout the entire life cycle of a subsea field, from first discovery to abandonment, onesubsea offers a full range of services to help you optimize production and enhance the profit potential of your offshore assets. Horizontal well modeling including optimum horizontal completion length determination injection well design. Thriving in scenarios where limited amount of injection gas is available, it gathers real time information from.
Gas lift is one of the most widely used artificial lift techniques. Apr 16, 2015 gas lift optimization and troubleshooting 1. For example, you can easily maximize or target the production of oil andor gas while minimizing water, or run oil production and gas oil ratio gor to setpoints to maintain reservoir energy. Design, diagnosis and optimization of gas lift systems. Threephase, blackoil reservoir simulator benefits achieve simulation results faster than any other black oil simulator. Method for optimal lift gas allocation rashid, kashif. Advanced lifting services lift system and reservoir monitoring, surveillance, diagnostics and optimization in real. A widely accepted definition of gas lift optimization is to obtain the maximum output under specified operating conditions. Responsible to pm3s cpp operating optimization, well test management. Winter 20072008 19 producing oil and gas is not easy or cheap. Multiphase booster pump power requirements, which would meet the field operational conditions were also. Pdf production optimization using gas lift technique. The avocet platform collects, stores, and displays all types of production operations informationsurface. Artificial lift solutions catalog comprehensive product portfolio offerings for a wide range of flow rates the schlumberger artificial lift solutions portfolio encompasses specialized expertise and complete equipment packages for every flow rate, including rod lift pumps, progressing cavity pumps pcps, hydraulic stroking units.
This course is intended to familiarize production personnel with the use, basic principles, selection of the equipment, types, design, monitoring, etc, of a continuous and intermittent gas lift system. Gas lift optimization the operation of the gas lift system is very similar to the normal production, because there is no any change in the design configuration of the production system in terms of size and design. Roshan sharma hogskolen i telemark kjetil fjalestad statoil research center bjorn glemmestad hogskolen i telemark 1. Optimization of gas lift system by jahanzeb ali bugti supervisor. A survey of methods for gaslift optimization hindawi. Presented to the middle east artificial lift forum, mealf, kingdom of bahrain, february 9th, 2011 original manuscript for presentation. Continuous gas lift is one of the most popular methods used around the world. Although the model has been established well, the singlewell configuration, considered in isolation of other wells, is not a field gas lift optimization solution. Gas lift system production optimization 6th10th oct 2014 at kuala lumpur, malaysia optimization of continuous flow gas lift installation part 2 singlewell optimization for unlimited rate the economic slope method allocation of lift gas to a group of wells the equal slope method class exercises. Gas lift optimization the purpose of gas lift optimization. See the complete profile on linkedin and discover ehsans. Gas lift optimization is becoming more important now a day in petroleum industry. Whether production takes place in remote onshore environments or in deep water, costs are high. Artificial lift electric submersible pump design considerations for oilfield operations in iraq author.
Gas lift optimization curves for each well are typically derived through measurement of gas oil production across a range of injection pressures. Gas lift optimizationan important tool to maintain production. This is the most basic definition of the gaslift optimization problem and is equivalent to. Design new wells and improvements for problem wells. Gap, forgas, avocet iam, mette multiple pvt regions pvt fluid models seawater, polymer, pseudo. He has been an spe distinguished lecturer two times and has presented and organized numerous conferences for artificial lift. A survey of methods for gaslift optimization modelling. Continuous gas lift is the most common artificial lift method employed in offshore operations 5. Aug 14, 20 an intelligent genetic algorithm has been developed to simultaneously optimize all effective factors, namely, gas injection rate, injection depth and tubing diameter towards the maximum oil production rate with the water cut and injection pressure as the restrictions. Reservoir surveillance, production optimisation and smart. Gas rate, glr and depth sensitivities of gas lift technique. As increased cost converges with dwindling supply, energy producers are seeking to squeeze every drop from current assets and optimize design of new facilities. Well design and troubleshooting discusses the important topic of oil and gas reservoirs as they continue to naturally deplete, decline, and mature, and how more oil and gas companies are trying to divert their investments in artificial lift methods to help prolong their assets. All of the previous researches have reported that conventional gas lift technologies designs have limitations on gas lift valve.
The major problem most operators encounter with continuous gas lift is maintaining an optimum gas injection rate into each well. A method is disclosed for optimal lift resource allocation, which includes optimally allocating lift resource under a total lift resource constraint or a total production constraint, the allocating step including distributing lift resource among all lifted wells in a network so as to maximize a liquidoil rate at a sink. Avocet was used in another cbm context by origin oil to streamline production data workflows in the spring gully coal seam gas field. The avocet platform provides a single, integrated platform that connects global and remote operations for a broad range of disciplinesfield staff, production and reservoir engineers, production accountants, and administrators. David p davidson, principal consultant, artificial lift pro services, inc. Furthermore, the experimental procedure and measurement techniques that. Pdf this paper presents a survey of methods and techniques developed for the solution of the. Okotie sylvester 1, ikporo bibobra 2, ovuema augustina 1.
Gas liftesp optimization response to upsets startupshutdown plan holistic asset optimization infill drilling eor optimization. May 03, 2015 gas lift technique a tool to production optimization. Advanced technologies optimize artificial lift, production. Optimization well, network, and asset optimization reservoir focus. Asset optimization the new avocet production operations software platform. Gas lift optimization utilising automation gas lift valve. Feb 21, 2017 this document was produced as part of my final year project of training to obtain a petroleum engineering diploma. Intechs gas lift optimization solutions are designed to. The software defines the wellbore schematic and accurately sizes all downhole components. Pe june 2014 universiti teknologi petronas 32610 bandar seri iskandar perak darul ridzuan. Pdf a survey of methods for gaslift optimization researchgate. Production and process optimization through people.
Gas lift system production optimization by gabor takacs. View ehsan salehis profile on linkedin, the worlds largest professional community. Being somehow an ancient tool with an age of over a century, gas lift is though still a challenging problem when overall optimization is the concern. The gas lift valve through which gas is injected during the normal operation of. Integrated gas lift system optimization springerlink. This paper examines the characterization of six oil wells and the allocation of gas considering limited and unlimited case scenario. Study of development alternatives for remote offshore, low. Easily share your publications and get them in front of issuus. Integrated gas lift automation and optimization solution. Gas lift optimization an important tool to maintain production v.
The gas lift design module is intended to help operators optimize gas injection depth, minimize downtime through continuous gas lift operation, and maximize production through bestsuited gas lift equipment selection. Jul 15, 2016 over the years ovs group has accumulated quite a bit of experience generating workflows to help companies optimize their wells performance. A method is disclosed for optimal lift gas allocation, comprising. Participants will investigate the impact of tubing sizing, gas lift valve selection, gas lift mandrel spacing, gas lift valve design, casing pressure, surface choke size, gas volume, etc. Miguel rogel production and optimization engineer eni. Choosing a proper injection gas pressure is critical in a gas lift system design. Abstract artificial gas injection into aging wells boosts reservoir pressures, allowing for higher production rates. This paper presents a survey of methods and techniques developed for the solution of the continuous gaslift optimization problem over the last two decades. The gas lift optimization facility finds the best way to allocate lift gas, ensuring that production targets are met in the most efficient way possible. A paper presented at the spe asia pacific conference in brisbane last month described how avocet has consolidated scattered data sources into a unified repository for reporting and analysis.
Gas lift operates by injecting a high pressure gas down through the tubing casing annulus of a well and the injected gas enters the tubing. With continuous instrumentation at each well, these curves can be dynamically computed and used in optimization strategies to address well interaction as. It provides realtime analytics and optimization with four convenient levels of coverage. Gas lift optimization also is valuable in determining the most profitable amount of lift gas capacity for a field and in properly allocating the available lift gas to d as to temperature required. Participants will practice mandrel spacing design and gas. Simulation study of technical and feasible gas lift performance. Garbutt concluded with a brief description of a production optimization project in one of devon canadas mature gas assets performed with aspentech. Aglpj1 pipesim gas lift optimization module amdlj1 sis pvt toolbox eos package avtaj1 sis pvt toolbox advanced gas eos. A survey of methods for gaslift optimization modelling and.
Generally, gas lift optimization can reduce the operating cost with increase in the net present value npv and maximization of the recovery from the asset. The lift iq production life cycle management service is the premiere monitoring and surveillance platform for artificial lift systems. A key factor in this efficiency push is the increasing use of intelligent. Artificial lift systems training course petroskills als. The traditional canadian brownfield environment leveraged avocet to. Artificial gas lift involves injecting highpressured gas from the surface into the producing fluid column through one or more subsurface valves set at predetermined depths. Approaches to field gl optimization well data well behaviour. These range from isolated singlewell analysis all the way to realtime multivariate optimization schemes encompassing all wells in a field. Optimization of lift gas allocation in a gas lifted oil field as nonlinear optimization problem authors. Production optimization is essentially production control where you minimize, maximize or target production of oil, gas and perhaps water. Continuous gas lift design, diagnosis and optimization. Assist satellite supervisor in manning satellite team. From operations in a single well to an entire field, the lift iq service taps into. Each of the individual simulations in the avocet software.