Barometric pumping effects on soil gas studies for geological and environmental characterization

Wyatt, D.E.; Richers, D. M.; Pirkle, Robert J.

doi:10.1007/bf00766753

Cited by 47 publications

(19 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Water-logged soil and mud should be avoided. The concentration of seeping gas in soil-air is then controlled by meteorological factors such as atmospheric pressure, temperature, and precipitation, as discussed in a wide array of scientific literature (e.g., Klusman and Webster 1981;Hinkle 1994;Wyatt et al 1995).…”

Section: Soil-gas or Subsoil Pore-gas Analysismentioning

confidence: 99%

Detecting and Measuring Gas Seepage

Etiope

2015

Natural Gas Seepage

View full text Add to dashboard Cite

This chapter provides a representative overview of current methodologies for detection of gas seepage on Earth's surface, both on land and in aquatic environments (rivers, lakes, oceans). Most of the techniques described can be utilised to discover gas seepage independent of the study objective (i.e. whether for petroleum exploration, geo-hazards, or environmental studies). Most of these techniques can also be used to measure anthropogenic gas leaks, such as fugitive emissions from petroleum production and distribution facilities. Applications to petroleum exploration, as well as related interpretative tools and limits, with references to microseepage detection, are discussed in Chap. 5.The goal of this chapter is not (and cannot be) an exhaustive manual or review for all of the currently available surface seepage prospecting methods. As outlined in the sections below, several traditional techniques have been described in review papers. Here, a synthetic and synoptic picture for several currently available methodologies is provided, including the latest techniques and capabilities offered by new generation instruments. The discussion provided here focuses on direct gas detection methods. The use of gas seepage in petroleum exploration is outlined in Chap. 5. Indirect methods, including geophysical techniques and measurements of chemical, physical, or microbiological parameters in soils, water, rocks, or vegetation, modified by the presence of hydrocarbons, are briefly illustrated. Specific references, as well as a few case histories, are provided for those interested in a deeper reading of the technical details of sensing principles and instrumentation design. The detection of oil is not the objective of this book. Gas Detection MethodsAs illustrated in Fig. 4.1, gas seepage can be detected above the ground (atmospheric measurements), in the ground (soils and well head-space), and in water bodies (shallow aquifers, springs, rivers, bogs, lakes, and seas). Several of the methodologies are visually reviewed in the tree diagram shown in Fig. 4.2.

show abstract

Section: Soil-gas or Subsoil Pore-gas Analysismentioning

confidence: 99%

Detecting and Measuring Gas Seepage

Etiope

2015

Natural Gas Seepage

View full text Add to dashboard Cite

show abstract

“…20.9. This can be explained by the important role of the permeability of the soil (Wyatt et al 1995), which strongly controls the transmission of pressure gradients through the subsurface, and variables such as soil water content and soil temperature that control soil permeability, also interferes with the response of soil gases to barometric pressure changes. Pearson correlation coefficients between predicted and observed values are displayed for the different periods.…”

Section: Soil Co 2 Flux Short-term Variationsmentioning

confidence: 99%

Chapter 20 Permanent monitoring of soil CO ₂ degassing at Furnas and Fogo volcanoes (São Miguel Island, Azores)

Viveiros

Ferreira

Silva

et al. 2015

Memoirs

View full text Add to dashboard Cite

Eight years of permanent soil CO 2 diffuse degassing monitoring at Furnas and Fogo volcanoes shows that several environmental variables may influence soil CO 2 flux to a different extent depending on the location. Stepwise multivariate regression analysis applied to the data acquired by the permanent flux stations installed on São Miguel showed that the monitored environmental variables may influence the gas flux in a proportion between 18 and 51%. The external variables that most significantly correlate with the soil CO 2 flux values for Fogo and Furnas volcanoes monitoring sites are the rainfall/soil water content with its effect on permeability; the barometric pressure pumping effect; the wind speed owing to the atmospheric air intrusion and the air temperature through the action of atmospheric tides. These variables are responsible not only for spike-like oscillations in CO 2 emission, but also for the long-term oscillations with higher and lower values registered usually during winter and summer months, respectively. Residual time-series, calculated using regression models, are compared with other geophysical and geochemical monitoring data in order to recognize changes that may be correlated with the volcanic/hydrothermal systems.

show abstract

“…Other studies showed that soil gas concentrations of CH 4 and CO 2 were sensitive to gas permeability as influenced by air capacity, water holding capacity or water content, compaction and thickness of the cover (Rannaud et al, 2009;Wyatt et al, 1995;Gebert and Gröngröft, 2009). On the investigated landfill a high spatial variability of the soil structure was revealed by five excavations of the soil cover (personal communication Julia Gebert).…”

Section: Influence Of Soil Properties On Spatial Patterns Of Gas Concmentioning

confidence: 98%

“…Several authors have also emphasized the role of atmospheric pressure changes influencing both the gas flux through a soil cover or through biofilter material (Christophersen and Kjeldsen, 2001;Gebert and Gröngröft, 2006;Poulsen et al, 2003;Wyatt et al, 1995), through the soil as well as the actual emission from the cover (Galle et al, 2001;Czepiel et al, 2003). Diffusion and advection are closely related to the pore size distribution of the soil (e.g.…”

Section: Introduction and Study Aimsmentioning

confidence: 98%

Spatial variability of soil gas concentration and methane oxidation capacity in landfill covers

et al. 2011

View full text Add to dashboard Cite

Barometric pumping effects on soil gas studies for geological and environmental characterization

Cited by 47 publications

References 4 publications

Detecting and Measuring Gas Seepage

Detecting and Measuring Gas Seepage

Chapter 20 Permanent monitoring of soil CO ₂ degassing at Furnas and Fogo volcanoes (São Miguel Island, Azores)

Spatial variability of soil gas concentration and methane oxidation capacity in landfill covers

Contact Info

Product

Resources

About

Barometric pumping effects on soil gas studies for geological and environmental characterization

Cited by 47 publications

References 4 publications

Detecting and Measuring Gas Seepage

Detecting and Measuring Gas Seepage

Chapter 20 Permanent monitoring of soil CO 2 degassing at Furnas and Fogo volcanoes (São Miguel Island, Azores)

Spatial variability of soil gas concentration and methane oxidation capacity in landfill covers

Contact Info

Product

Resources

About

Chapter 20 Permanent monitoring of soil CO ₂ degassing at Furnas and Fogo volcanoes (São Miguel Island, Azores)