|Theme||Visible||Selectable||Appearance||Zoom Range (now: 0)|
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. 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.
This paper compares the performance of three mature-field horizontal infill wells, one of which is completed with autonomous inflow-control devices (AICDs). 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.
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. 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. As tight-oil producers move to curtail production, hard-to-answer questions are being raised about how shuttered wells will come back.
For assets having gas-lift as a predominant form of artificial lift, the full field optimization is essential due to the closed-loop nature of the system with significant interdependence amongst reservoir, wellbore and surface installation. This course will review full-field optimization concepts applicable to the gas lifted wells from subsurface to the surface. The participants will understand workflows of solving entire system using commercial software tools. Gas lift is the most forgiving lift method in that it continues to work over a wide suboptimal operating range without showing any symptoms of malfunctions. Single well-based optimization practices help improve the situation, but the entire field-based approaches are essential for improved production performance.
Flow assurance in the oil and gas industry refers to the systems put in place to guarantee uninterrupted profitable and sustainable flow of hydrocarbons from the reservoir to surface facilities and ultimately to refineries. Flow assurance challenges include: inorganic scale, asphaltene, wax, corrosion, hydrates, etc. Managing these challenges is becoming more complex because of development of fields under harsher conditions e.g. HPHT reservoirs, sour reservoirs, heavy oil; in addition to further implementation of EOR (gas injection, chemical, surfactant and polymer floods). Different engineering and chemical solutions can be put in place to manage these challenges. This course has supplemental books located in our SPE Bookstore entitled Applied Multiphase Flow in Pipes and Flow Assurance - Oil ad Gas Production and Fluid Flow and Heat Transfer in Wellbores, Second Edition (Print and Adobe Digital Edition Set).
This course examines the fluid flow and heat transfer that occurs down hole during the production of oil and gas. Participants will use spreadsheets to compute the pressure and temperature profiles of single- and multi-string completions, and for both conduits of gas-lift wells. These basic principles will then be extended to tackle flow assurance and reservoir surveillance problems using examples from the field. A host of problems can threaten flow assurance in offshore and onshore wells. If you are directly involved in flow assurance or need to know more about it, this course is for you.
This course is an in-depth look at artificial lift, specifically for wells using continuous-flow gas lift or electrical submersible pumps (ESPs). The course can also be modified for a 5-day exclusive ESP training program with hands-on problem solving using SubPUMP software. In either case, there are plenty of class problems to solve in the workshops, and problem scenarios from the attendees are always welcome. The instructor for this course draws on 40 years of experience in the business. By the end of the week, you'll have a firm grasp of ESP and gas lift systems.
To explain fluid sampling and characterization challenges in liquid-rich-shale (LRS) reservoirs and to offer best practices in order to minimize errors for the most challenging produced fluids. To explore the science of Lean-Gas cycling EOR by discussing three mechanisms of EOR in the context of two pressure regimes: Matrix and Fractures. Become more competent in resolving fluid characterization questions and concerns and to understand better how to plan for increased liquid optimization. Engineers and Geoscientists who are working in LRS development and exploitation. All cancellations must be received no later than 14 days prior to the course start date.
Basics of Artificial Lift Systems Disciplines: Production and Operations Course Description This course presents a complete overview of the most widely used artificial lift systems in the oil and gas industry. A unified engineering concept of artificial lift is presented based on Nodal System analysis approach. The differences amongst the various artificial lift systems and their applications are clearly presented. This interactive seminar type presentation blends lectures with some simple hands on problem solving workshops with adequate Q&A sessions. Detailed design, troubleshooting, evaluation, economic analysis and maintenance of the artificial lift systems will not be covered.