scholarly journals Gas Well Integrity and Associated Gas Migration Investigations in the Marcellus Shale

2016 ◽  
Vol 33 (2) ◽  
Author(s):  
J. Daniel Arthur
Keyword(s):  
Natural Gas ◽  
Oil And Gas ◽  
Marcellus Shale ◽  
Development Effort ◽  
Gas Migration ◽  
Associated Gas ◽  
Wellbore Integrity ◽  
Natural Gas Development ◽  
Gas Fields ◽  
Oil And Gas Companies

The Marcellus Shale is one of the largest natural gas fields in the world and has been the site of a massive natural gas development effort involving hundreds of oil and gas companies. With the onslaught of the “shale revolution,” developers moved into states like Pennsylvania and began drilling/completing natural gas wells by the hundreds. This development occurred so rapidly that attention to issues such as wellbore natural gas intrusion was not initially given the priority it demanded in all cases. This led to instances of alleged natural gas migration and impacts to groundwater supplies in several areas of the region. Although there has been an onslaught ofevaluations geared toward the study of groundwater contamination, the author has researched the natural gaswells themselves. Based on thousands of wellbore integrity studies in the Marcellus and other worldwide shale regions, this paper will summarize the forensic processes, analysis methods, and approaches used in assessing wellbore integrity as part of a natural gas migration investigation. The paper will also present details that pertain to remedial alternatives and approaches to wells requiring attention.

scholarly journals APPLICATION OF METHODS OF ASSOCIATED PETROLEUM GAS UTILIZATION FOR THE EASTERN SIBERIA

2016 ◽  
pp. 93-97
Author(s):  
D. G. Lapin ◽  
D. A. Fomin ◽  
B. B. Kvesko
Keyword(s):  
Oil And Gas ◽  
Combustion Products ◽  
Oil Reservoir ◽  
Eastern Siberia ◽  
Gas Generator ◽  
Associated Petroleum Gas ◽  
Associated Gas ◽  
Gas Utilization ◽  
Oil And Gas Companies ◽  
Theoretical Amount

The article considers the most effective and environmentally friendly methods of utilization of associated petroleum gas (APG) for advanced oil and gas companies, as well as the developed method of utilization of associated gas using downhole steam-gas generator. The downhole steamgas generator burns APG at the bottomhole in the combustion chamber, and the combustion products - nitrogen and carbon dioxide - are supplied to the oil reservoir. A method for calculating the theoretical amount of air and combustion products is proposed.

scholarly journals Natural Gas

2011 ◽  
Vol 133 (04) ◽  
pp. 52-52
Author(s):  
Rainer Kurz
Keyword(s):  
Natural Gas ◽  
Gas Turbine ◽  
Gas Turbines ◽  
Oil And Gas ◽  
Electrical Power ◽  
Offshore Platforms ◽  
Electric Motors ◽  
Turbine Generator ◽  
Associated Gas ◽  
Generator Sets

This article discusses the importance of gas turbines, centrifugal compressors and pumps, and other turbomachines in processes that bring natural gas to the end users. To be useful, the natural gas coming from a large number of small wells has to be gathered. This process requires compression of the gas in several stages, before it is processed in a gas plant, where contaminants and heavier hydrocarbons are stripped from the gas. From the gas plant, the gas is recompressed and fed into a pipeline. In all these compression processes, centrifugal gas compressors driven by industrial gas turbines or electric motors play an important role. Turbomachines are used in a variety of applications for the production of oil and associated gas. For example, gas turbine generator sets often provide electrical power for offshore platforms or remote oil and gas fields. Offshore platforms have a large electrical demand, often requiring multiple large gas turbine generator sets. Similarly, centrifugal gas compressors, driven by gas turbines or by electric motors are the benchmark products to pump gas through pipelines, anywhere in the world.

Gas migration from oil and gas fields and associated hazards

1993 ◽  
Vol 9 (3) ◽  
pp. 223-238 ◽  
Author(s):  
A.E. Gurevich ◽  
B.L. Endres ◽  
J.O. Robertson ◽  
G.V. Chilingar
Keyword(s):  
Oil And Gas ◽  
Gas Migration ◽  
Oil And Gas Fields ◽  
Gas Fields

Efficient Smoke Suppressant Reduces the Particulate Matter Emissions of Crude Oil Fired Gas Turbines

2019 ◽  
Author(s):  
Matthieu Vierling ◽  
Michel Moliere ◽  
Paul Glaser ◽  
Richard Denolle ◽  
Sathya Nayani ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Natural Gas ◽  
Crude Oil ◽  
Gas Turbines ◽  
Oil And Gas ◽  
Liquid Fuels ◽  
Gas Field ◽  
Associated Gas ◽  
Score Card ◽  
Particulate Matter Emissions

Abstract Gas turbines are often the master pieces of the utilities that power Oil and Gas (O&G) installations as they most often operate in off-grid mode and must reliably deliver the electric power and the steam streams required by all the Exploration/Production (EP) or refining processes. In addition to reliability, fuel flexibility is an important score card of gas turbines since they must permanently accommodate the type of fuel which is available on the particular O&G site. For instance, during the operation of an associated gas field, crude oil comes out from the well heads as the gas reserves are declining or depleted. The utility gas turbine must then be capable to successively burn natural gas and crude oil and often to co-fire both fuels. An important feature of crude oils is that their combustion tends to emit significantly more particulate matter (PM) than do distillate oil and natural gas as they contain some heavier hydrocarbon ends. Taking account of the fact that some alternative liquid fuels emit more particulates matter (PM) than distillate oils, GE has investigated a class of soot suppressant additives that have been previously tested on light distillate oil (No 2 DO). As a continuation of this development, these products have been field-tested at an important refining site where several Frame 6B gas turbines have been converted from natural gas to crude oil with some units running in cofiring mode. This field test showed that proper injections of these fuel additives, at quite moderate concentration levels, enable a substantial abatement of the PM emissions and reduction of flue gas opacity. This paper outlines the main outcomes of this field campaign and consolidates the overall results obtained with this smoke suppression technology.

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