Production Well Water Shut Off Polymer Treatment in the Weber Sandstone - Ashley Valley Field, Uintah County, UT

Fingernail clams (Muscu1ium transversum) are dominant bottom-dwelling animals in some waters of the midwest U.S. These organisms are key links in food chains leading from nutrients in water and mud to fish and ducks which are utilized by man. In the mid-1950’s, fingernail clams disappeared from a 100-mile section of the Illinois R., a tributary of the Mississippi R. Some factor(s) in the river and/or sediment currently prevent clams from recolonizing areas where they were formerly abundant. Recently, clams developed shell deformities and died without reproducing. The greatest mortality and highest incidence of shell deformities appeared in test chambers containing the highest proportion of river water to well water. The molluscan shell consists of CaCO3, and the tissue concerned in its secretion is the mantle. The source of the carbonate is probably from metabolic CO2 and the maintenance of ionized Ca concentration in the mantle is controlled by carbonic anhydrase. The Ca is stored in extracellular concentric spherical granules(0.6-5.5μm) which represent a large amount of inertCa in the mantle. The purpose of this investigation was to examine the role of raw river water and well water on shell formation in the fingernail clam.

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State of Alaska epidemiology bulletin: Trichloroethylene (TCE) in well water, Fairbanks: Public health and environmental protection

PsycEXTRA Dataset ◽

10.1037/e455112008-001 ◽

2008 ◽

Keyword(s):

Public Health ◽

Environmental Protection ◽

Well Water

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IDENTIFIKASI SERTA HUBUNGAN KONSTRUKSI SUMUR GALI TERHADAP KANDUNGAN COLIFORM PADA AIR SUMUR GALI DI DUSUN JIKEN KABUPATEN LOMBOK TIMUR

Bioscientist : Jurnal Ilmiah Biologi ◽

10.33394/bjib.v7i2.2371 ◽

2019 ◽

Vol 7 (2) ◽

pp. 115

Author(s):

Dini Yuliansari

Keyword(s):

Cross Sectional Study ◽

Coliform Bacteria ◽

Well Water ◽

Chi Square ◽

Cross Sectional ◽

Content Variable ◽

Chi Square Test ◽

Dug Wells ◽

Dug Well ◽

The Relationship

The well is one of the source water used for bathing, washing, and drinking by the citizens in Jiken Hamlet, Rarang Village, Terara Sub-District. Poor dug well construction conditions can affect the amount of coliform bacteria contained in the dug well water. The purpose of this study is to identify the construction of dug wells and the content of coliform bacteria in dug well water and determine the relationship between dug well construction and the content of coliform bacteria. This research is analytic with a cross sectional study design. The results were obtained from 11 samples of dug wells which were observed in construction and the coliform content was known that all samples did not requirements as good dug well construction. Coliform content test results showed that as many as 5 dug well water samples did not pass the clean water quality standards. The results of data analysis with the chi-square test variable construction of dug wells with coliform content variable showed 0,172 > 0,05, then the concluded is the dug well not suitable to use by people in that area as a source of water for daily needs.

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Preculaatities of evaluation of the effectiveness of flow deflection technologies

Moscow University Bulletin. Series 4. Geology ◽

10.33623/0579-9406-2018-6-93-101 ◽

2018 ◽

pp. 93-101

Author(s):

A. A. Kazakov ◽

V. V. Chelepov ◽

R. G. Ramazanov

Keyword(s):

Enhanced Oil Recovery ◽

Oil Recovery ◽

Production Well ◽

Oil Companies ◽

Efficiency Calculation ◽

Petroleum Companies ◽

Flow Deflection ◽

Recovery Methods

The features of evaluation of the effectiveness of flow deflection technologies of enhanced oil recovery methods. It is shown that the effect of zeroing component intensification of fluid withdrawal leads to an overestimation of the effect of flow deflection technology (PRP). Used in oil companies practice PRP efficiency calculation, which consists in calculating the effect on each production well responsive to subsequent summation effects, leads to the selective taking into account only the positive components of PRP effect. Negative constituents — not taken into account and it brings overestimate over to overstating of efficiency. On actual examples the groundless overstating and understating of efficiency is shown overestimate at calculations on applied in petroleum companies by a calculation.

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Strength Evaluation of a Cement Ring Adjacent to a Production Well Bore

Прикладная механика и техническая физика ◽

10.15372/pmtf20170120 ◽

2017 ◽

Keyword(s):

Well Bore ◽

Production Well ◽

Strength Evaluation

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Analytical solution for estimating the influence of a pre-existing ground water flow on a geothermal heat production-injection well system

International Review of Applied Sciences and Engineering ◽

10.1556/irase.2.2011.1.2 ◽

2011 ◽

Vol 2 (1) ◽

pp. 13-17

Author(s):

I. David ◽

M. Visescu

Keyword(s):

Ground Water ◽

Water Flow ◽

Geothermal Energy ◽

Flow Direction ◽

Energy Resource ◽

Hot Water ◽

Injection Well ◽

Production Well ◽

Ground Water Flow ◽

The Earth

Abstract Geothermal energy source is the heat from the Earth, which ranges from the shallow ground (the upper 100 m of the Earth) to the hot water and hot rock which is a few thousand meters beneath the Earth's surface. In both cases the so-called open systems for geothermal energy resource exploitation consist of a groundwater production well to supply heat energy and an injection well to return the cooled water, from the heat pump after the thermal energy transfer, in the underground. In the paper an analytical method for a rapid estimation of the ground water flow direction effect on the coupled production well and injection well system will be proposed. The method will be illustrated with solutions and images for representative flow directions respect to the axis of the production/injection well system.

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