Fully automated photocolorimetric method for dissolved silica in oil well water rich in sulfide and bicarbonate

Talanta ◽  
2015 ◽  
Vol 140 ◽  
pp. 42-44
Author(s):  
Dmitry N. Korolev ◽  
Evgeny S. Buslaev ◽  
Aleksandr I. Elefterov
Keyword(s):  
Well Water ◽  
Oil Well ◽  
Dissolved Silica ◽  
Photocolorimetric Method

THE SPECTROGRAPHIC CORRELATION OF OIL WELL WATERS

Geophysics ◽  
1937 ◽  
Vol 2 (2) ◽  
pp. 127-131
Author(s):  
M. F. Hasler
Keyword(s):  
Chemical Method ◽  
Well Water ◽  
Oil Well ◽  
Core Analysis ◽  
Spectrographic Analysis ◽  
Considerable Saving ◽  
Well Waters

A spectrographic analysis of oil well water brines is described, which allows the detection and measurement of a much larger number of elements than the chemical method usually employed, with a considerable saving of time. This larger number of correlation variables have been analyzed statistically and found to give correlations in many cases where the usual chemical tests were inadequate. It is proposed that the same methods may be applied to core analysis.

Determination of Irreducible Water Saturation and its Application in Analysing Water Producing after Fracturing

2014 ◽  
Vol 548-549 ◽  
pp. 1881-1884
Author(s):  
Xi Wen Zhang ◽  
Guang Sheng Cao ◽  
Li Juan Niu ◽  
Gui Long Wang
Keyword(s):  
Water Saturation ◽  
Bound Water ◽  
Well Water ◽  
Oil Well ◽  
Size Change ◽  
Irreducible Water Saturation ◽  
Before And After ◽  
Nonsteady State ◽  
State Method

Combining Semipermeable Diaphragm Method with Nonsteady State Method, Bound Water Saturation and Critical Water Saturation in Du 38 District of Daqing Fuyang Reservoir are Determined before and after Fracturing and Relationship between them is also Analyzed. the Results Show that the Fracture of Bound Water, have a Certain Influence Critical Water Saturation, and the Cracks of Bound Water, the Greater the Size Change the Greater the Value of Critical Water Saturation; Characteristics of Reservoir Microscopic Seepage is Analyzed, the Results Show that the Movable Water Potential Changes is the Main Cause of Oil well Water after Fracturing.

Silicon Substitution for Calcium in the Shell of the Fingernail Clam, Musculium Transversum Studied By X-Ray Analysis

1980 ◽  
Vol 38 ◽  
pp. 560-561
Author(s):  
Judith A. Murphy ◽  
Anthony Paparo ◽  
Richard Sparks
Keyword(s):  
Carbonic Anhydrase ◽  
River Water ◽  
Food Chains ◽  
Well Water ◽  
Shell Formation ◽  
X Ray ◽  
Molluscan Shell ◽  
Fingernail Clams

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.

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

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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