Gas chromatographs (GCs) are used in natural gas applications to measure the hydrocarbon components. The heavier natural gas liquids beyond butane and pentane are referred to as C6+ hydrocarbons. Gas chromatographs performing C6+ analysis are used by hydrocarbon processing facilities when high-quality product specifications are required or when rigid custody transfer standards are needed in natural gas trading operations. These gas chromatographs provide not only the heating value of the gas sampled, but also gas composition and relative density.
The Rosemount 370XA Gas Chromatograph is designed for the continuous online analysis of natural gas. The analysis measures the common components found in natural gas, including the C6+ components. The 370XA improves gas measurement analysis and reducing lost-and-unaccounted-for (LAUF) gas.
In this 2:23 YouTube video, Integrated Gas Chromatograph System Enclosure, Emerson’s Shane Hale explains how a pre-assembled factory enclosure system helps customers solve challenges like faster installation, start-up and commissioning of complex gas chromatographs in the field.
Shane describes how this enclosure system is an all-in-one installation for the GC that your team can just pick up, put on site and wire it up and its ready to go. Continue Reading ▶
Beginning at 9:45am CST (15:45 UTC), this stop in the tour will livestream the proceedings at the Shopfloor Blog. Also, over at the NAM Facebook page, they’ll be livestreaming some interviews with some of the Emerson folks around the facility.
You can also follow the action in various social channels by searching on the #StateofMFG hashtag.
It’s encouraging to see the comeback in shale oil & gas production here in the U.S. Oil & gas producers have made great strides in lowering the costs of drilling, hydraulic fracturing & completion and ongoing well pad production. A recent CPI Financial article noted:
Shale oil output in the US may grow sequentially by 600 thousand b/d from 4Q16 to 4Q17 on increased activity in oil rigs and fast productivity gains. Importantly, breakeven costs for key major US plays now stand around the $55/bbl mark.
One way productivity gains are being made is in reducing the capital expenditures of the well pad processing equipment. Traditional methods using test separators and associated manifold piping and valves to measure oil, gas and produced water amounts per well are being redesigned with multiphase meters. Originally developed for offshore environments, the multiphase meter technology and modularity has advanced as a great option for onshore production applications.
Laura opened the presentation highlighting the measurement considerations oil & gas producers face in optimizing assets, producing safely and with process integrity, meeting regulatory requirement, and establishing accuracy in allocations and custody transfer transactions.
Asset optimization includes reservoir and well optimization and process optimization to address optimum production levels and produced water constraints. Traditional flow measurement technologies do not handle multiple phases in the flow stream effectively. Some flow measurement technologies such as liquid turbine meters can be damage by bubbles caused by gas coming out of liquid phase. Differential pressure measurement can handle these phases but not measure the amount of each of the phases. Continue Reading ▶
Continuously operating process plants need to plan outages, also known as turnarounds, from time to time to perform maintenance and improvements not possible while the process is online. Every day of downtime is lost revenue, so carefully planning the actions to be performed during the outage is critical.
Nikki and Tim note that the turnaround personnel are:
…tasked with coordinating limited resources in a constrained time period, and must ensure that they are safely working only on the assets that need attention. Missing a required maintenance service, or doing unnecessary work, has the potential for extending the turnaround schedule, which increases the probability of an unscheduled shutdown after the turnaround is completed.
They explain that these turnarounds typically were performed on 3-to-5 year intervals, with some now stretching out to 5-to-7 years between turnarounds. This can create issues with collective experience with many involved moving into different roles during these intervals.
The mission of this blog has always been to bring the experts around Emerson to you. Many of these folks also share their expertise in our Emerson Exchange 365 global user community and with LinkedIn posts. I’ll highlight an example I saw today.
Natural Gas has become the desired fuel for gas turbines used in modern power plants. Gas turbines are extremely sensitive to contaminants carry-over into the combustors, thus requires fuel gas to be treated to high level of purity for total protection and optimal operation. Gas Conditioning skids are used to clean and treat the gas to achieve the best results and ensure the highest turbine performance.
These gas conditioning skids perform the functions of removing contaminants entrained in the gas stream, superheating the gas stream above the hydrocarbon dew point, reducing pressure and maintaining tight pressure control, measuring the gas flow rate, and odorizing the gas so that it can be smelled in case of leaks. Continue Reading ▶