TOPICS OF INTEREST
Coiled Tubing Gas Lift Revives Dead Wells in South Pakistan
This paper describes a coiled tubing gas lift (CTGL) technique successfully used to restart production from two pilot wells in a mature field in Pakistan that had been shut in since 2015.
Interview With George King: Better Practices for Well Shut In and Startup
The industry has very limited experience in shuttering production on a large scale in unconventional reservoirs. Many questions remain on how stimulated, nanodarcy shale reservoirs may respond. George King discusses the paradigm shifts needed in the industry.
The Great Shale Shut-In: Uncharted Territory for Technical Experts
As tight-oil producers move to curtail production, hard-to-answer questions are being raised about how shuttered wells will come back. The issue reveals key uncertainties about the delicate flow paths that define unconventional reservoirs.
Subsurface Compression Lifts Liquids, Increases Gas Production in Unconventional Well Trial
A downhole compressor solution based on advanced magnetic technologies completed its first field trials in an unconventional gas well. It resulted in a 62% increase in gas production and significant increase in liquid production compared to using a rod pump previously in the well
Mass Implementation of Ultrahigh-Speed ESP Systems Increases Reliability, Savings
This paper presents the results of a 3-year project aimed at mass field implementation of ultrahigh-speed (UHS) electric submersible pump (ESP) systems in western Siberia.
Transient Plunger-Lift Model Improves Prediction of Liquid Unloading From Gas Wells
Natural-gas wells suffer from liquid loading if the gas-flow rate is insufficient to carry liquids to the surface. Because of the technique’s many advantages, plunger lift has been used widely in gas wells for the removal of liquid columns and the rescue of dying gas wells from liquid loading.
Just as the unconventional revolution has transformed our industry during the past decade, it has also dominated the world of artificial lift. In fact, it can be difficult to find an artificial lift paper these days that does not address, in some way, artificial lift systems in unconventional wells.
Dynamometer-Card Classification Uses Machine Learning
The complete paper explains the steps taken to improve surveillance of beam pumps using dynamometer-card data and machine-learning techniques and reviews lessons learned from executing the operator’s first artificial intelligence project.
Intermittent Gas Lift Used in Hydrate Mitigation and Flare Reduction in Algeria
Hassi Messaoud is a mature oil field with more than 1,100 production wells. Approximately half of the wells are natural flow and the other half use continuous gas lift (CGL) with concentric (CCE) strings.
Boosting Uncovers True Value of Subsea Assets
The first subsea multiphase boosting system was installed in 1994. Since then, it has grown into a technology with a global track record.
Shale Producers Piloting Downhole Compression To Solve Liquid Loading
Using maglev technology, a new artificial lift system seeks to boost production output by sucking down reservoir pressure from inside the wellbore and from inside the reservoir.
Permian Operators Collaborate to Improve Understanding and Performance of Unconventional Reservoirs
Permian Basin operators and service companies met to discuss completions diagnostics, flowback strategies, water management, and artificial lift strategies.
OTC Event Selects 10 Startups Worth Watching
The results are in. Here are this year’s “Most Promising” startups as decided by upstream investors and oil company innovation teams
Analytics Solution Helps Identify Rod-Pump Failure at the Wellhead
This paper presents an analytics solution for identifying rod-pump failure capable of automated dynacard recognition at the wellhead that uses an ensemble of ML models.
New Steamflooding Techniques Pay Off in Mukhaizna Field
This paper covers the staged field-development methodology, including analysis and evaluation of various development concepts, that enabled the company to optimize both completion design and artificial-lift selection, reducing downtime and lowering operating costs by nearly 50%.
Through-Tubing-Conveyed ESP Technology Overcomes North Slope Challenges
Electrical-submersible-pump (ESP) technology is a proven artificial-lift method for shallow, low-pressure reservoirs such as those found in the West Sak viscous oil field in Alaska.
Of the many steps in the journey toward maximizing run life, the first steps should be to identify the system requirements and communicate those to the vendor. This can be challenging, because operators and suppliers often speak different languages. Fortunately, international standards can help.
Study Evaluates Ability of Tailpipe Systems To Optimize Artificial Lift in Horizontal Wells
The performance of artificial-lift systems on horizontal wells is greatly influenced by both the volume of gas produced and the tendency for gas slugging.
So Many Wells, So Few Engineers—Scaling Production Engineering for All Those Shale Wells
Fast-declining, older, unconventional oil wells require artificial lift experts to deal with and explore a population of miles-long horizontal wells that do not follow the established rules of thumb.
AI Firm Ambyint’s New Bakken Deal with Equinor Moves the Industry Another Step Closer to the Edge
Hundreds of rod-lift wells in North Dakota are about to get a big upgrade.
Effect of R Ratio on Performance of Injection-Pressure-Operated Gas-Lift Valves
This paper describes the consequences of using an assumed R ratio in a gas-lift design that is not the same as the actual R ratio of the valve.
Artificial-Sump-Pumping System Improves Production in Unconventional Oil Wells
This paper presents a comparison of conventional ESP methods and artificial-sump systems for which free gas and gas slugs are a challenge.
Rod-Pump Optimization: Big Data Helps Accelerate and Improve Operations
This paper presents how a US onshore operator took a three-step approach to optimize more than 100 rod-pump wells. The approach involved data consolidation, automated work flows, and interactive data visualization.
One of the more exciting aspects of artificial lift is the constant influx of new technologies and new ideas that the discipline invites. Inventors appear to be regularly developing “the next new thing” in artificial lift.
Enhanced Gas Recovery: Benefits Seen in Downhole vs. Wellhead Gas Compression
Extensive analysis has led to the conclusion that downhole gas compression provides a greater increase in gas production than wellhead gas compression because of the additional drawdown created.
Q&A: Rockwell Automation Aims To Unify Data Collection Systems, Optimize Analysis
Rockwell Automation’s Luis Gamboa explains his company’s new solution designed to allow operators to collect, sort, and reconcile the quality and quantity of data from multiple sources to optimize field data.
Induced Earthquakes in Oklahoma Dropping, But Not off the Radar
Top US seismic experts say they are keeping a watchful eye on ground shaking in the state as new concerns are raised in neighboring Texas.
Artificial-Lift-System Selection Guidelines for Horizontal Gas Wells
This study presents a methodology to define the most-adequate artificial-lift technique on the basis of technical limitations, a suitability coefficient (based on an attributes table), and economic analysis toward horizontal well configuration.
Artificial-Lift Selection Strategy To Maximize Value of Unconventional Oil and Gas Assets
This paper presents an artificial-lift selection process to maximize the value of unconventional oil and gas assets.
Well-Performance Calculations for Artificial-Lift Screening
This paper focuses on a fit-for-purpose methodology to evaluate well-production performance for a wide range of artificial-lift techniques.
Two things stood out when I looked at this year’s abstracts. First, well over half of the abstracts were related to electrical submersible pumps (ESPs). This is a significant increase from the last couple of years. Second, there was a clutch of artificial-lift-method-selection papers.
With Over 200 Shale Well Installs, This Slug-Smoothing Lift Technology Is Boosted By Schlumberger JV
Slug flow has made the life of an unconventional production engineer a bit complicated, but a new downhole technology may smooth things right out by solving some big artificial lift problems for the shale sector.
Gas Lift Use Grows in Permian
Unconventional production patterns in the Permian Basin are leading producers to replace electrical submersible pumps (ESPs) with gas lift, which had been little used there.
Four Honored as Legends of Artificial Lift
The 2016 SPE Legends of Artificial Lift are announced. Recipients will be honored at the 2016 SPE Artificial Lift Conference and Exhibition for North America to be held this month.
Operators Begin Considering Pumps on Older Subsea Fields
The sharp downturn in the offshore oil business has sparked interest in using subsea pumps to add production. If those conversations turn into orders, it may convert this rarely used option into a commonly used tool for extending the life of offshore fields.
Run-Life Improvement by Implementation of Artificial-Lift-Systems Failure Classification
This paper describes a methodology for classification of artificial-lift-system (ALS) failures and addition of a commonly used root-cause failure classification.
Evaluation of Intermittent-Flow Behavior Upstream of Electrical Submersible Pumps
This work experimentally investigates the behavior of an intermittent multiphase liquid/gas flow that takes place upstream of an electrical submersible pump (ESP).
Methodology Evaluates Artificial-Lift Requirements Amid High Uncertainty
When evaluating artificial-lift requirements, sometimes data present uncertainties at the initial planning stage. This paper presents the integrated and structured methodology that was used to deal with high-uncertainty conditions.
Our problem is that we are dealing with multiphase, multicomponent fluids whose compositions change spatially and temporally inside imperfectly understood heterogeneous reservoirs whose characteristics also change spatially and temporally.
In-Well Dual Canned ESP Completion Test To Validate Safe Deployment in Deep Water
Deepwater and ultradeepwater completions use numerous hydraulic control lines for control and actuation of downhole equipment.
New Technology To Cut Electric Costs, Not Production
Everhart Energy Technology, a startup company based in Beverly Hills, California, has developed a system it believes will help small to medium-sized operators cope with the reality that, while oil prices have fallen, their electric bills have not.
Encapsulated ESP Handles Multiphase Flows To Extend Run Life and Boost Oil Recovery
Electrical submersible pump (ESP) systems are critical to achieving the maximum production rates and reservoir pressure drawdown that improve ultimate recovery. But variable volumes of gas in unconventional wells can pose challenges for performance of the ESP.
Balancing Artificial Lift, Chemical Injection To Achieve Production Goals Over Life of Well
Production engineers are often asked to manage both the artificial lift (AL) system and the upstream chemical injection program for a project.
Artificial Lift Experts Warn of Long-Term Production Issues in Horizontal Wells
A panel of experts says US shale producers need to rethink their drilling and completion designs as problems mount for horizontal wells when they go on pump. Hanging in the balance is whether long-term production from many shale wells will be achievable.
Guest Editorial: Managing Production to Weather the Storm
The recent plunge in oil prices has reinforced a number of truths about our industry.
Gas Lift Nodal-Analysis Model Provides Economical Approach to Optimization
Field X consists of 17 scattered clusters of more than 100 oil wells producing from different reservoirs.
Production Optimization With Artificial-Lift ESP Pilot Systems in a Mature Oil Field
A production-optimization strategy of an artificial-lift system resulted in the mitigation of challenges related to reservoir heterogeneities and completion design.
One thing this cycle has in common with all of the other down cycles the industry has been through is that most companies ignore the opportunities a down cycle presents.
Reliability Improvement in Beam Pumps by Use of a Unique Methodology
This paper focuses on analysis of beam-pump-failure root causes and trends and how the operator has used these data combined with automated equipment to reduce failure frequency and operating cost.
Paying Mind to Lift Systems in Mature Fields Yields Profit
Case studies from around the world prove that big rewards await companies that optimize the artificial lift systems keeping their mature fields alive. The success stories involve a mix of monitoring, automation, and performance tracking.
Paying Close Attention to a Gas Lift System Can Be Rewarding
When a gas lift system starts performing poorly, there is a good chance no one will notice. It is not an event that demands attention like a broken pump. A gas lift system will continue injecting gas into wells and oil will continue to come out. Just not as much oil as there could be.
New Anchor Extends Insertable Progressing-Cavity-Pump Applications
In artificial-lift applications, a new anchoring device for insertable progressing-cavity pumps (I-PCPs) extends I-PCP applications to a larger set of candidate wells.
Integrating True Valve Performance Into Gas Lift Design and Troubleshooting
The new approach joins well performance from production-system analysis and true valve performance from the VPC database to form an integrated system performance tool.
Applying Root-Cause Failure Analysis Enhances Artificial-Lift Performance
This paper describes the use of a root-cause-failure-analysis (RCFA) process to improve artificial-lift-system performance in a project in Chad.
High-Power ESP Tubing-Hanger Connector for Deepwater Downhole Applications
It was established that improving the reliability of the TH-connector system has a direct effect on the unintervened life of the ESP electrical system.
The digital repository of our valuable SPE papers was first launched as the SPE eLibrary in 1997 and subsequently was updated as OnePetro in 2007. This great collection has become a valuable resource for our global industry.
Artificial Lift Selection Discussed at Workshop
As oil and gas fields are depleted, artificial lift systems are often required to maintain delivery volumes and to maximize recovery.
New Uses Keep Emerging for A Deceptively Simple Pump
The rapid growth of progressing cavity pumps is an example of how new uses continue to emerge for older technology.
High-Reliability Gas Lift Flow-Control-Device Technology and Erosion/Endurance Tests
High-reliability gas lift flow-control devices (GLFCDs) enable gas lift for wells with the potential for H2S in the produced gas and where casing is not qualified for H2S service.
Measured Plunger-Fall Velocity Used To Calibrate New Fall-Velocity Model
Fall velocities for various plungers have been measured under many different field and simulator conditions. A new theoretical plunger-fall-velocity model uses a specific pressure and temperature for calibration.
Artificial-lift reliability is strongly influenced by how well the equipment is selected, designed, and operated for its particular application. The required artificial-lift knowledge is more than simply entering data into a software program or taking one class on the subject.
Foamer Technology Optimizes Artificial Lift in the Alliance Shale-Gas Field
Recently, Quicksilver Resources and Eni E&P, through its subsidiary Eni US Operating, began a common effort to optimize production and lift costs in the Alliance shale-gas field in the prolific Barnett shale play in Texas.
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04 August 2020