TOPICS OF INTEREST
Savvy Separator: Oversizing Separators—Too Much of a Good Thing?
Oversizing a separator ensures meeting the life cycle needs of a facility, but are we setting ourselves up for failure in the long run? With peak rates typically being short-lived at best, or at worse, well beyond actual production rates, more weight needs to be given to the tail-end of production.
A Model for Evaluating Inlet Systems to Gas/Liquid Separators
Learn about the guidelines for early stages of projects and a method for evaluating the effect of inlet piping and devices on gas/liquid separator performance and useful tools to evaluate the adequacy of a proposed design. [Note: Updated on 22 May, the article contains a number of corrections.]
Moving Away From Our “Eiffel Tower” Approach to Offshore Processing Equipment
We don’t include a structure like the Eiffel Tower with separators, pumps, and compressors on the top observation platform in an onshore development plan. And yet, how many jacket platforms are there around the world?
High-Voltage Subsea Pump Enables Low-Cost Boosting
Subsea pumps are used for gas/liquid separation, subsea compression, and subsea boosting. Solutions aiming at cost reductions are crucial to make subsea processing projects feasible. A cost- and complexity-reduction solution for the subsea electrical power supply is a critical consideration.
Selecting the Right Subsea Pump for Your Application
Operator or manufacturer’s reports and published papers are reviewed and a criterion is developed for subsea pump selection.
Subsea High-Boosting Multiphase Pumps Increase Oil Recovery in Aging Field (Includes presentation slides)
Production from an offshore Angola field has been decreasing because of subsea pressure declines amid water-cut increases and limited gas compressor capacity. The development process leading to the selection of high-boosting multiphase pumps is described.
Executing Offshore Projects More Efficiently
Offshore project execution enhancement ideas are highlighted for debottlenecking, gas-hydrate-induced pipeline vibration, and the design of subsea systems for efficient startup.
Produced-Water Debottlenecking Improves Offshore Production
An operator in the western Gulf of Thailand retrofit two partial-processing water-management systems on mobile-offshore-production-unit platforms for bulk removal and treatment of produced water. Water debottlenecking increased oil production by 80% and reduced the infield transfer volume by 62%. Th
All-Electric Subsea Processing Advances With Testing of Subsea Variable Speed Drive
A JIP turned the dial closer to achieving all-electric subsea processing with the underwater testing of a subsea variable speed drive in a harsh water environment.
SNC-Lavalin Wins Award for Fast-Tracking of Cardon IV Facilities Project
SNC-Lavalin was recognized by the Rice Global Engineering & Construction Forum’s Award of Excellence for the fast-track installation of a 150 MMcf/D natural gas processing plant for production from the offshore Venezuela Perla field.
GATE Energy Joins Ranks of Contract Awardees for Noble’s Leviathan Project
GATE Energy is the most recent contract awardee for Noble Energy’s Leviathan project offshore Israel. It will provide the commissioning of the production platform for the megaproject.
Improving Gas Dehydration With Preinhibited Glycol
The paper discusses dehydration performance of two units in two plants—with preinhibited glycol/antifoam/pH adjuster blend vs. neat glycol with periodic injection of antifoam and pH-adjuster inhibitors. The insights present an opportunity for significant operating and capital costs reduction.
The Savvy Separator: The Code Implications of Retrofitting Separators
This article highlights some of the code and registration issues the Savvy Separator engineer encounters when retrofitting a vessel with internals to improve or restore the process performance of the separator.
Quantifying Oil/Water Separation Performance in Three-Phase Separators—Part 2
Part 2 of this two-part series presents a new methodology for sizing and rating three-phase separators based on quantifying the actual mechanisms and physics that govern separation performance. An example illustrates the calculations needed to achieve the specified outlet fluid qualities.
Human Error: The Big Hurdle to Safer Facilities
Why is designing with human error in mind so critical? Consider that nearly 80% of all offshore facility accidents are caused by human errors, and 64% of these accidents happen during operations.
The Savvy Separator: Physical Processes Behind Oil Droplet Coalescence During Water Treatment
By understanding the factors involved in oil droplet coalescence, the Savvy Separator engineer can assess the operational/chemical factors in the treatment system that are affecting droplet growth and make adjustments to enhance coalescence rates.
Compact, Efficient Heat Exchanger Based on Packed Beds of Nanoparticle-Doped Spheres
In this work, the authors demonstrate at a laboratory scale the possibility of using a radio-frequency heating system as a heat exchanger.
Quantifying Oil/Water Separation Performance in Three-Phase Separators—Part 1
This first article in a two-part series discusses a new methodology for sizing and rating three-phase separators that is based on quantifying the actual mechanisms and physics that govern performance in typically used equipment.
Savvy Separator: Operational Troubleshooting of Separators
In this tenth article of the series, the author focuses primarily on specific operational elements of troubleshooting rather than the mechanical design of the separator.
Savvy Separator: Taming Tower Carry-Over
Lessons learned in debottlenecking a “dirty” triethylene glycol contactor at the ExxonMobil Upstream Research Company’s LaBarge Black Canyon Facility in Wyoming highlight the results of work performed between 2001 and 2004.
Pressure-Minimization Method for Prediction of Two-Phase-Flow Splitting
Looped lines are used to reduce pressure drop and increase flow capacity, but information on the flow behavior or predictive methods are not available for these systems.
Savvy Separator: Level Design and Control in Gravity Separators
In this eighth articles of the series, level settings and control in gravity separators are addressed.
Applying Subsea Fluid-Processing Technologies for Deepwater Operations
Subsea processing is an evolving technology in ultradeepwater development and has the potential to unlock a significant amount of hydrocarbon resources. In this paper, the authors have reviewed the application of subsea systems in 12 deepwater fields and discussed the significance of each.
Savvy Separator: Introduction to CFD for Separator Design
Why CFD should be part of your separator design? This goal of this goal is to allay any fears about CFD that you may have as a result of flashbacks to university class and a dizzying array of partial-differential equations.
Savvy Separator Series: The Effect of Shear on Produced Water Treatment
The sources and magnitude of shear and the effects on oil droplet size can have significant consequences for downstream separation equipment performance.
Savvy Separator: The Ghosts of Separators Past, Present, and Future
Lessons learned by the members of the SPE Separations Technology Technical Section, representing more than 250 years' experience, are presented so that the same mistakes are not repeated in the future.
Savvy Separator: Scrubber Debottlenecking
An underperforming scrubber that was suffering from too much oil carry-over is described along with options for debottlenecking and improving performance.
Savvy Separator: The Effect of Inlet Geometries on Flow Distribution
Efficient separation assumes uniform flow, but the reality of inlet geometries can invalidate this assumption, leading to separation problems and loss of separation efficiency.
Savvy Separator: Design of Cyclone Separators: Internals and Liquid Levels
Some internals components affect a separator's gas- and liquid-handling capability because of their effects on the liquid level. In this article, the interdependency of cyclonic inlets, cyclonic mist eliminators, and liquid level is highlighted.
Taking on the Technical Challenges of Sour Gas Processing
High H2S and CO2 content in natural gas pose significant challenges to processing equipment. This article explores the challenges of sulfur removal and high pressures in the presence of acid gas.
Topside Processing Plants Go Compact on FPSOs
The development of compact topside processing plants for floating, production, storage and offloading (FPSO) vessels is a growing industry trend that can reduce operating and capital expenditures over the life of the vessel, a researcher and scientist said recently.
Novel Leak Detection Method for Sulfur Recovery Unit Condensers
Tube leaks present in a water-cooled sulfur recovery unit (SRU) condenser can lead to a variety of process issues, including corrosion and the oxidative formation of acidic species. This work devised a novel method to verify such leaks within a SRU condenser.
Acoustic-Induced-Vibration Case Study for WDDM Onshore Facilities
In gas applications with high-pressure drops and/or high-velocity gas flow, acoustic-induced vibration (AIV) occurs when very high sound levels are propagated in piping. This can induce fatigue cracking of the pipe and potentially catastrophic pipe failure.
New Method To Estimate Surface-Separator Optimum Operating Pressures
Setting optimal surface separation pressures are crucial for maximizing the surface liquid production from the wellstream feed. Where separator tests are not available, empirical calculations are often used, but with limitations. A method suitable across many conditions is proposed.
Advancements in the Removal of Mercury From Crude Oil
Issues associated with mercury’s presence in hydrocarbon processing systems have become more apparent as deeper and hotter reservoirs (often with higher levels of mercury) were exploited, and with the low-temperature gas processing used for liquefied natural gas (LNG) and natural gas liquids.
Sulfate Removal—The Adoption of a Water Treatment Technology by the Oil and Gas Industry
The oil and gas industry is sometimes slow to adopt new technologies and other times quick to deploy a new approach. The decision whether to try something new weighs the perceived risks and rewards.
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07 May 2018
08 May 2018
ITEMS OF NOTE
16 February 2018
18 December 2017
28 November 2017
19 October 2017
19 September 2017