Field Gas Articles | Environmental XPRT

What is the Difference between a gas analyser and a gas monitor?

Technically, there does not have to be any difference at all. However, semantically, “analysis” might suggest something more scientific with higher precision and better performance than a simple “monitor” which possibly suggests a more indicative output where precision is of less importance. With that said, the two words “analyser” and “monitor” are ...

Mar. 15, 2018

By Opsis AB

A Portable High Speed Gas Chromatograph for Field Monitoring

Over the last two decades a variety of portable or transportable gas chromatographs (GC) have been specifically designed for field use. Each instrument has introduced innovations that have simplified the task of on site air monitoring. Portable instrument users are well aware of the advantages of field sampling. These advantages include more representative results because there is no sample ...

Jan. 1, 2003

Baseline groundwater quality in unconventional oil and gas fields

In recent years, expansion of unconventional oil and gas production has prompted significant interest in potential impacts on drinking water resources. In many cases, water quality investigations rely on access to landowner water wells to develop baseline data prior to drilling; respond to spills, complaints, or incidents; or evaluate potential impacts due to drilling, completion, hydraulic ...

Jun. 11, 2015

By IWA Publishing

Exergy of natural gas flow in Iran's natural gas fields

Natural gas flow has a valuable pressure exergy which is currently destroyed in throttling valves at exit of the gas fields. In the current study, this pressure exergy has been calculated for an actual case. Exergy analysis was based on actual condition of the Shanol gas field, which is situated in Iran, in the summer. It is assumed to be a good representative of Iran's whole gas fields. Exergy ...

Feb. 20, 2009

By Inderscience Publishers

Axetris Sensor Field Test

The Axetris LGDs were operated continuously for two years. After intensive laboratory testing, they went out into the field in 2015. Axetris was able to test the functionality of its sensors under real-life conditions thanks to the support of the Linth waste incineration plant. The gas concentration measuring devices called laser gas detectors ( ...

Jun. 1, 2017

By Axetris Ag

Leveling the carbon playing field

Climate change is one of the most far-reaching economic challenges of our times. Unchecked, it threatens the welfare of people around the globe. Mitigating the worst of its impacts will require mobilizing capital and technology in innovative ways that will transform the global economy. The good news is that if we do it right we can generate technologies and markets that will not only leave us a ...

May 26, 2008

By World Resources Institute WRI

$Evaluation research on performance of permeability and fracture in Sulige gas field by new method$

Evaluation research on performance of permeability and fracture in Sulige gas field by new method

Tight gas is the most available alternative unconventional natural gas in China. Its potential is huge and the Sulige gas field is the biggest one. However, there are many urgent development problems to be solved, and evaluating well performance is of one of them. Low permeability, strong stress sensitivity and hydraulic fracturing make it difficult to predict well performance. Evaluating the ...

Jun. 2, 2014

By Inderscience Publishers

Safety Systems Depend on Reliable Field Sensors (Emphasis on Fire and Gas Detectors)

Abstract Because not all hazards are the same, identifying and quantifying the hazard is the starting point in choosing sensing technology. Not all detectors are the same, and they should be selected according to their ability to detect the hazard. This paper gives a broad summary of technologies that provide users reliable responses to hazardous conditions, that minimise false ...

Jul. 16, 2010

By Det-Tronics - Detector Electronics Corporation part of UTC Climate, Controls & Security

Field scale and economical analysis of carbon dioxide, nitrogen, and lean gas injection scenarios in Pazanan gas condensate reservoir

Liquid dropouts around the wellbore in gas condensate reservoirs causes severe reductions in gas production rates, the permanent loss of a large portion of volatile and valuable condensates, and a wrong estimation of well deliverability. It is believed that applying diffusion coefficients and the Generalised Pseudo Pressure (GPP) method leads to more accurate modelling of reservoir performance. ...

Feb. 21, 2014

By Inderscience Publishers

Field Performance Testing for Pipeline Pumps

Significant energy savings can be achieved by optimizing pump operating efficiency. Measuring the exact pump performance with crude oil under realistic conditions in the field is the first step towards improving the pump efficiency in the future. About 20 billion barrels of crude oil were transported through pipelines in 2015. Around the world, there are over one million kilometers of ...

Jul. 13, 2016

By Sulzer Management Ltd

Successful Dunbar Field Life Extension

The advent of high-power multiphase pumps is changing the world of oil production. In particular, they allow continued production from fields that are nearing the end of their useful lives. These revolutionary pumps have been in operation since autumn 1999 on the Dunbar platform, in the UK sector of the North Sea. Multiphase pumping (MPP) is essentially a means of adding energy to the ...

Jul. 13, 2016

By Sulzer Management Ltd

Field verification of on-line hydrocarbon dew point measurements

Introduction The Michell Condumax II applies a fundamental measurement principle for direct measurement of hydrocarbon dew point. Measurement performance is assured through comprehensive factory test and calibration, to verify that each analyzer offers accurate determination of the temperature at which hydrocarbon condensate forms. Further extensive examination confirms highly sensitive ...

May 23, 2013

Hydrate risks and prevention solutions for a high pressure gas field offshore in South China Sea

YC13-4 gas field is located in the west of the South China Sea, where the seawater depth is around 90 m, and the average surface temperature is 26.2°C, while the minimum temperature at seabed is 18.9°C. Subsea wellheads are designed for gas production. In this paper, the risks of hydrate formation during drilling, well testing and gas production are analysed under different operation conditions. ...

Oct. 1, 2013

By Inderscience Publishers

New Developments in Thermal Dispersion Mass Flow Meters: In-The-Field Compensation for Changes in Natural Gas Composition

Introduction The flow of natural gas in pipelines is often complicated by changes in the composition of the gas. The method described in this paper solves the problem of variable composition via a new four-temperature mass flow sensor. The new (low sensor feeds its measurements into the algorithms of an advanced mathematical model that includes gas properties in its calculations. The method ...

May 5, 2015

By Sierra Instruments, Inc.

Numerical modelling of gas dispersion from road tunnels in urban environments: comparison with field experiment data

Numerical computations and field experiments of the dispersion of a tracer gas from a road tunnel in Paris are compared. The Reynolds-averaged Navier-Stokes equations, combined with the k-ε turbulence model of Chen and Kim, are solved using the finite-volume code PHOENICS. Results are shown to be sensitive to the turbulence modelling and to the parameterisation of turbulence and drag forces ...

Sep. 15, 2009

By Inderscience Publishers

Numerical simulation and field test study of desulfurization wastewater evaporation treatment through flue gas

Aimed at cost saving and pollution reduction, a novel desulfurization wastewater evaporation treatment system (DWETS) for handling wet flue gas desulfurization (WFGD) wastewater of a coal-fired power plant was studied. The system's advantages include simple process, and less investment and space. The feasibility of this system has been proven and the appropriate position and number of ...

Oct. 20, 2014

By IWA Publishing

Oil Field Produce Waste Water Treatment

Oily Waste Produce Water Treatment Oil Field Produce Waste Water Treatment Testing Produce Water Oil Field Production The oil industry has been ...

Jan. 30, 2009

By Integrated Engineers Inc.

Collecting Data from the Field? Follow this Formula for Success!

A drill operator at an oil rig is looking tired and “out of it.” He’s yawning, his movements are slow, and he doesn’t appear to be paying much attention to detail. Immediately, the supervisor relieves the drill operator of his duties and reassigns the task. He quickly enters the work observation in his iPad. His device has an offline mode that will sync up with his ...

Jun. 25, 2015

By Intelex Technologies Inc.

Oil Field Production Wastewater Produce Water Treatment

Produce Water Treatment Oil Drilling Produce Water Treatment Produce Water Produce water is generated from the oil field production of natural gas and ...

Oct. 21, 2009

By Integrated Engineers Inc.

Emissions Trading in China: First Reports from the Field

When Tianjin launched its carbon emission trading scheme (ETS) on Dec 26th 2013, it became the fifth ETS operating in China, following Shenzhen, Beijing, Shanghai, and Guangdong. Now that five of seven pilots have started trading and the rest are expected to start in 2014, the aggregate of all emissions regulated in China through the seven pilots will be the second largest in the world, following ...

Jan. 24, 2014

By World Resources Institute WRI

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