نتایج جستجو برای: drilled wells
تعداد نتایج: 21479 فیلتر نتایج به سال:
The ultimate goal of geochemical studies of geothermal systems is to understand the physical-chemical processes responsible for their origin and evolution. The chemical composition of fluids (separated vapor and water), collected from fumaroles, hot springs and drilled wells at the Earth’s surface (25oC) is determined in the laboratory. Using the chemical geothermometers, conservation of mass, ...
Unconventional shale-gas plays are formed by fine-grained organic-rich shales of tight-porosity and ultralow permeability which act as the source, seal, and the reservoir rock. The shale-as-reservoir has its beginnings in 1820 but commercial shale-gas wells were drilled in 1990s in Mississippian Barnett Shale of USA by Mitchell Energy after prolonged (about 17 years) experimentations and advanc...
In oil and gas industry, oil is produced from wells drilled into the oil reservoirs. A thorough understanding and characterization of the subsurface is crucial to sustainable management of a reservoir. The subsurface, however, is largely heterogeneous and oil is not present everywhere. For our study area, the reservoir rock is categorized as three facies: brine sand, oil sand and shale, and it ...
As generally known, subsurface pressure can be implied using both wireline logs and drilling events. However, there may a case where events do not indicate the same pressure. Data from four vertical wells located in South Sumatra Basin, Indonesia, were analyzed as study. Two wells, Wells A D, encountered high overpressured zones, confirmed by data. The two others, B C, only low inferred relativ...
During present study, 30 samples of drinking water from five different sources drilled well Kifry city have been collected and investigated for the levels their physiochemical Microbiological Coliform. Chemical tests were performed include some soluble inorganic ions, such as chloride (Cl1-) calcium (Ca2+), potassium (K+) sodium (Na+), magnesium (Mg2+). While conductivity, pH, total dissolved s...
The lithological description of drilled wells and pumping test analysis used to determine the hydrogeological conditions west Makhul area, main ground water aquifer in area represented by unconfined within sediments Injana Formation, hydraulic properties this (Transmissivity, Storage coefficient, Hydraulic conductivity) were estimated test, flow net was plotted, it reflected that direction from...
Rapid growth in unconventional oil and gas (UOG) has produced jobs, revenue, and energy, but also concerns over spills and environmental risks. We assessed spill data from 2005 to 2014 at 31 481 UOG wells in Colorado, New Mexico, North Dakota, and Pennsylvania. We found 2-16% of wells reported a spill each year. Median spill volumes ranged from 0.5 m3 in Pennsylvania to 4.9 m3 in New Mexico; th...
The effects of land cover on water table, soil moisture, evapotranspiration, and groundwater recharge were studied with water level measurements collected from two monitoring wells over a period of 122 days. The two wells were installed under similar conditions except that one was drilled on the east side of a creek which was covered with grass, and the other on the west side of the creek which...
HYDROLOGIC PROPERTIES OF THE DIXIE VALLEY, NEVADA, GEOTHERMAL RESERVOIR FROM WELL-TEST ANALYSES R.H. Morinl, S.H. Hickman2, C.A. Barton3, A.M. Shapird, W.R. Benoits, J.H. Sass6 1U.S. Geological Survey, Denver, CO 80225, USA [email protected] 2U.S. Geological Survey, Menlo Park, CA 94025, USA [email protected] 3Stanford University, Dept. of Geophysics, Stanford, CA 94305, USA barton@ pan...
Nowadays, both the wind power and shale gas industries have been developing quickly and receiving significant attention in the media. Since wind and natural gas are competing sources of electricity generation, in order to guide policy, it would be useful to have an idea of how many jobs are created by these two competing resources. In this paper, we use a panel econometric model to estimate the...
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