Chemistry of Oil Recovery by Robert T. Johansen and Robert L. Berg (Eds.)

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By Robert T. Johansen and Robert L. Berg (Eds.)

content material: Cation alternate, surfactant precipitation, and adsorption in micellar flooding / Robert D. Walker, Jr., W.E. Ray, M.K. Tham, and M.C. Lee --
The effect of surfactant constitution on low interfacial tensions / Peter H. Doe, Mahmoud M. El-Emary, William H. Wade, and Robert S. Schechter --
part habit of a natural alkyl aryl sulfonate surfactant / E.I. Franses, H.T. Davis, W.G. Miller, and L.E. Scriven --
Colloidal houses of sodium carboxylates / W.H. Baldwin and G.W. Neal --
Experimental thermochemistry of oil restoration micellar structures / R.L. Berg, L.A. Noll, and W.D. sturdy --
Participation of selective local petroleum fractions in reducing interfacial tensions of aqueous alkaline structures / P.A. Farmanian, N. Davis, J.T. Kwan, R.M. Weinbrandt, and T.F. Yen --
Spontaneous emulsification and the impact of interfacial fluid homes on coalescence and emulsion balance in caustic flooding / D.T. Wasan, S.M. Shah, M. Chan, okay. Sampath, and R. Shah --
comparability of resolution homes of mobility keep an eye on polymers / Esref Unsal, John Larry Duda, and Elmer Klaus.

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Extra resources for Chemistry of Oil Recovery

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ACS Symposium Series; American Chemical Society: Washington, DC, 1979. ch002 2. DOE E T A L . 5. Very low tensions are produced only against alkanes i n the approximate-grange decane to t r i d e c a n e . ( i . e . tensions below 10 dyne cm" ). A long n - a l k y l group meta to the S0~ can a c t as an i n t e r f e r i n g group (16). b) I f the i n t e r f e r i n g group i s short r e l a t i v e to the longest group, the s u r f a c t a n t f a l l s i n t o preference group I, η =10. Low tensions are p o s s i b l e against alkanes from pentane to dodecane.

22y w e r e u s e d t o s e p a r a t e d i s p e r s e d particles. A l t e r n a t i v e l y o r i n a l t e r n a t i o n a Beckman L3-50 p r e p a r a t i v e u l t r a c e n t r i f u g e w i t h a n SW-1 s w i n g i n g b u c k e t r o t o r was u s e d . I n i t i a l s o l u t i o n s a n d d i s p e r s i o n s w e r e s t i r r e d magn e t i c a l l y f o r a t l e a s t 12 h o u r s . A L e i t z p o l a r i z i n g microscope equipped with a Nikon photom i c r o g r a p h i c a t t a c h m e n t was e m p l o y e d w i t h e i t h e r a s l i d e c o v e r s l i p arrangement o r a square c a p i l l a r y specimen c o n t a i n e r .

However, s y s t e m s o f t h e same c o m p o s i t i o n l o o k e d d i f f e r e n t n o t o n l y when m i x e d i n d i f f e r e n t o r d e r s , b u t a l s o a f t e r h e a t i n g and r e c o o l i n g , e v i d e n t l y because o f d i s s o l u t i o n , s u p e r s a t u r a t i o n , n u c l e a t i o n and phase growth which l e d to d i f f e r e n t p a r t i c l e s i z e d i s t r i b u t i o n s (15). A p a r t f r o m t h e s e t e s t s s y s t e m s were o r d i n a r i l y p r e p a r e d by d i s s o l v i n g t h e s a l t and t h e n a d d i n g t h e s u r f a c t a n t , a t c o n s t a n t temperature, i n order to avoid nonequilibrium effects a r i s i n g f r o m s u p e r s a t u r a t i o n , s l o w n u c l e a t i o n and s l u g g i s h p h a s e growth.

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