PROPERTIES OF WATER-SWELLABLE COMPOUNDS BASED ON NITRILE RUBBER WITH VARIED ACRYLONITRILE CONTENT

2021 ◽  
Author(s):  
M. A. Vaniev ◽  
S. S. Lopatina ◽  
N. V. Sychev ◽  
Y. Y. Savchenko ◽  
A. D. Bruk ◽  
...  
Keyword(s):  
Room Temperature ◽  
Mineral Content ◽  
Oil And Gas ◽  
Gas Production ◽  
Nitrile Rubber ◽  
Influential Factor ◽  
Cross Linking ◽  
Group Level ◽  
Oil And Gas Production ◽  
Swelling Rate

ABSTRACT This article examines the development of water-swellable rubbers for oil and gas production packer equipment. The object of the investigation is to document the effect of rubber's acrylonitrile content on the swelling of the elastomers modified with sodium-carboxymethyl cellulose and a copolymer of acrylamide and potassium acrylate. After testing the samples at room temperature, the most influential factor in a material's swelling was discovered to be the mineral content in the liquids imitating well fluids. NBR polarity stemming from the inherent CN-group level was not explicitly detected to affect the swelling rate and maximum ratio under the described conditions of the experiment. It was determined that in sodium chloride aqueous solutions with concentrations from 3 to 22%, swelling of nitrile rubber mostly depends on its cross-linking degree.

Nitrile Rubber—Past, Present and Future

1995 ◽  
Vol 68 (3) ◽  
pp. 540-546 ◽  
Author(s):  
D. L. Hertz ◽  
Hermann Bussem ◽  
T. W. Ray
Keyword(s):  
Oil And Gas ◽  
Gas Production ◽  
Nitrile Rubber ◽  
Aqueous Environment ◽  
Paper Briefly ◽  
Oil And Gas Production ◽  
The Past ◽  
Well Stimulation ◽  
Higher Temperature ◽  
Completion Fluids

Abstract Nitrile rubber (NBR) has been the work-horse elastomer in oil and gas production for the past fifty years. Random seal and packer failures have been encountered in the more agressive fields. The higher temperatures and increasing percentages of hydrogen sulfide (H2S), naturally occuring or through well stimulation directly or indirectly, initiate the failure mechanism(s). Future applications of nitrile rubber in higher temperature production should only be considered after reviewing the range of potential chemical attacks that are possible by of the aqueous environment (well fluids, completion fluids and stimulation fluids). This paper briefly outlines the scope of chemical attacks that can and will be encountered.

Colorado areas of oil and gas production

1994 ◽  
Author(s):  
Richard F. Mast ◽  
D.H. Root ◽  
L.P. Williams ◽  
W.R. Beeman
Keyword(s):  
Oil And Gas ◽  
Gas Production ◽  
Oil And Gas Production

SANICRO 41

Alloy Digest ◽  
1995 ◽  
Vol 44 (1) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Oil And Gas ◽  
High Strength ◽  
Heat Treating ◽  
Gas Production ◽  
Oil And Gas Production ◽  
Corrosion Resistant ◽  
Corrosion Resistant Alloy ◽  
Nickel Base

Abstract SANDVIK SANICRO 41 is a nickel-base corrosion resistant alloy with a composition balanced to resist both oxidizing and reducing environments. A high-strength version (110) is available for oil and gas production. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: Ni-475. Producer or source: Sandvik.

Sign in / Sign up

Export Citation Format

Share Document