Effect Of Hydrogen Sulfide On The Inhibition Of Oil Field Tubing In Hydrochloric Acid

1977 ◽  
Author(s):  
Donald G. Hill ◽  
Donald N. DeMott
Keyword(s):  
Hydrogen Sulfide ◽  
Hydrochloric Acid ◽  
Oil Field

ZERON 25

Alloy Digest ◽  
1995 ◽  
Vol 44 (3) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Hydrogen Sulfide ◽  
Mechanical Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
Oil Field ◽  
Localized Corrosion ◽  
Oil Gas

Abstract ZERON 25 is an alloy developed to combat severe oil field duties where oil, gas, water are contaminated with high levels of chlorides and hydrogen sulfide. The alloy has good mechanical strength and resistance to localized corrosion. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-584. Producer or source: Weir Material Services Ltd.

Modification of the Carbon Disulfide Evolution Method for Dithiocarbamate Residues

1969 ◽  
Vol 52 (1) ◽  
pp. 162-167 ◽  
Author(s):  
George E Keppel
Keyword(s):  
Hydrogen Sulfide ◽  
Hydrochloric Acid ◽  
Carbon Disulfide ◽  
Lead Acetate ◽  
Stannous Chloride ◽  
Acetate Solution ◽  
Colorimetric Measurement ◽  
Fungicide Residues ◽  
Mineral Acids ◽  
Lead Acetate Solution

Abstract A study was made of the analytical method for dithiocarbamate fungicide residues based on decomposition by hot mineral acids to the amine and carbon disulfide and colorimetric measurement of the carbon disulfide. Increased recoveries are obtained by the following modifications: adding a reducing agent (stannous chloride) to the sample before treatment with hot acid; svibstituting diluted sodium hydroxide for lead acetate solution to remove hydrogen sulfide and other interferences; and using boiling diluted hydrochloric acid. With these modifications, recoveries of N,N-dimethyldithiocarbamates from crops ranged from 85.3 to 103.8% (average 94.7%). Ethylenebisdithiocarbamates, with the exception of zineb (range 89.1–96.8%, average 92.0%), gave appreciably lower recoveries, indicating further study is necessary.

scholarly journals The composition of acid/oil interface in acid oil emulsions

2020 ◽  
Vol 17 (5) ◽  
pp. 1345-1355
Author(s):  
Yulia M. Ganeeva ◽  
Tatiana N. Yusupova ◽  
Ekaterina E. Barskaya ◽  
Alina Kh. Valiullova ◽  
Ekaterina S. Okhotnikova ◽  
...  
Keyword(s):  
Hydrochloric Acid ◽  
Oil Field ◽  
Field Equipment ◽  
Oil Emulsion ◽  
Acid Oil ◽  
Field Development ◽  
Intermediate Layers ◽  
Acid Sludge ◽  
Oil Emulsions ◽  
The Stability

Abstract In well stimulation treatments using hydrochloric acid, undesirable water-in-oil emulsion and acid sludge may produce and then cause operational problems in oil field development. The processes intensify in the presence of Fe(III), which are from the corroded surfaces of field equipment and/or iron-bearing minerals of the oil reservoir. In order to understand the reasons of the stability of acid emulsions, acid emulsions were prepared by mixing crude oil emulsion with 15% hydrochloric acid solutions with and without Fe(III) and then separated into free and upper (water free) and intermediate (with water) layers. It is assumed that the oil phase of the free and upper layers contains the compounds which do not participate in the formation of acid emulsions, and the oil phase of the intermediate layers contains components involved in the formation of oil/acid interface. The composition of the oil phase of each layer of the emulsions was studied. It is found that the asphaltenes with a high content of sulfur, oxygen and metals as well the flocculated material of protonated non-polar oil components are concentrated at the oil/acid interface. In addition to the above, in the presence of Fe(III) the Fe(III)-based complexes with polar groups of asphaltenes are formed at the acid/oil interface, contributing to the formation of armor films which enhance the emulsion stability.

Applying a most probable number method for enumerating planktonic, dissimilatory, ammonium-producing, nitrate-reducing bacteria in oil field waters

2005 ◽  
Vol 51 (8) ◽  
pp. 725-729 ◽  
Author(s):  
Ruth E Eckford ◽  
Phillip M Fedorak
Keyword(s):  
Hydrogen Sulfide ◽  
Water Samples ◽  
Oil Field ◽  
Most Probable Number ◽  
Minor Role ◽  
Probable Number ◽  
A Minor ◽  
Reducing Bacteria ◽  
Nitrate Reducing Bacteria ◽  
Oil Field Water

A most probable number (MPN) method was used to enumerate dissimilatory ammonium-producing, nitrate-reducing bacteria (DAP-NRB) in oil field waters and to determine whether they were stimulated by nitrate addition used to control hydrogen sulfide production. An ammonium production medium with 5 carbon and energy sources (acetate, glucose, glycerol, pyruvate, and succinate) and nitrate was used in a 3-tube MPN procedure to enumerate DAP-NRB. These bacteria were detected in 12 of 18 oil field water samples, but they were seldom detected in wellhead samples. Three oil field water samples were amended with nitrate in serum bottles and the numbers of different NRB were determined over a 38-day incubation time. This amendment stimulated increases in the numbers of heterotrophic NRB and autotrophic nitrate-reducing, sulfide-oxidizing bacteria, but DAP-NRB remained a minor portion of these communities. Overall, DAP-NRB were present in many of the oil field waters that were examined but their numbers were low. It appears that DAP-NRB would play a minor role in the consumption of nitrate injected into oil field waters for the control of hydrogen sulfide production.Key words: heterotroph, nitrate-reducing bacteria, dissimilatory nitrate reduction, ammonium, petroleum.

Review of Methods for Mercury in Pesticide Formulations

1969 ◽  
Vol 52 (4) ◽  
pp. 764-767
Author(s):  
James E Launer
Keyword(s):  
Acetic Acid ◽  
Hydrogen Sulfide ◽  
Hydrochloric Acid ◽  
Glacial Acetic Acid ◽  
Mercury Compounds ◽  
Pesticide Formulations ◽  
Sulfide Precipitation

Abstract Outlines are given for mercury methods that have been accepted by CIPAC. One method separates mercury from other pesticides by dissolving the pesticide in hot glacial acetic acid and amalgamating the mercury on zinc. Another method dissolves mercury in hydrochloric acid and separates it from other pesticides by hydrogen sulfide precipitation or by amalgamation on zinc. Other oxidation procedures are given for decomposition of mercury compounds. Further study is recommended for the method in which mercury is released with fuming sulfuric-nitric acids and determined with thiocyanate titration.

Integrated Approach to the Determination of the Origin of Hydrogen Sulfide in the Oil Field (Russia)

2021 ◽  
Author(s):  
D. Kalacheva ◽  
N. Morozov ◽  
D. Abramov ◽  
M. Kremenetskiy ◽  
E. Kazak ◽  
...  
Keyword(s):  
Hydrogen Sulfide ◽  
Integrated Approach ◽  
Oil Field
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