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Keywords: contact angle
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Journal Articles
J Can Pet Technol 54 (01): 49–62.
Paper Number: SPE-164087-PA
Published: 02 January 2015
... inhibition Hydrate Remediation flow assurance oilfield chemistry scale remediation hydrate inhibition scale inhibition HCl Asphaltene Precipitation ferric iron limestone hydraulic fracturing Upstream Oil & Gas precipitation contact angle surfactant molecule asphaltene remediation...
Journal Articles
J Can Pet Technol 52 (02): 144–154.
Paper Number: SPE-146322-PA
Published: 07 March 2013
... is one of the mechanisms suggested to be the primary mechanism of low-salinity water. Therefore, wettability alteration by low-salinity water in sandstone reservoirs is examined by using the contact-angle technique. The effect of changing ionic strength on the electrokinetic charges is investigated...
Journal Articles
J Can Pet Technol 50 (06): 61–67.
Paper Number: SPE-148631-PA
Published: 31 May 2011
... important roles in the recovery of bitumen from oil sands. However, measurements on hot-water/bitumen interfaces are scarce in the literature. A relevant measurement would be the contact angle and interfacial tension (IFT) of the water/bitumen interfaces at different temperatures. In this paper, it has been...
Journal Articles
J Can Pet Technol 50 (05): 59–74.
Paper Number: SPE-145308-PA
Published: 27 April 2011
.... The problem is addressed analytically even for the unequal-viscosity case by making use of the Galerkin method. The concept of contact angle is used in the determination of the fluid distribution inside a noncircular channel. The model results show that the viscosity ratio theoretically affects relative...
Journal Articles
J Can Pet Technol 41 (07).
Paper Number: PETSOC-02-07-02
Published: 01 July 2002
... decades. On the other hand, contact angles observed in crude oil-water-solid systems have been traditionally regarded as a true, or universal, measure of wettability. Hence, the obvious question becomes?is there a correlation between wettability derived from corefloods and contact angles? A definitive...
Journal Articles
J Can Pet Technol 40 (02).
Paper Number: PETSOC-01-02-DAS
Published: 01 February 2001
...- festation of the surface forces. Both the sign and magnitude of the of the capillary force depend on the interfacial tension between the reservoir crude oil and the displacing fluid, and the contact angle between the solid surface and the fluid-fluid interface. A force bal- ance along the solid surface...
Journal Articles
J Can Pet Technol 38 (13).
Paper Number: PETSOC-99-13-49
Published: 01 December 1999
... wettability Upstream Oil & Gas viscosity recovery saturation waterflooding pseudo work contact angle crude oil enhanced recovery imbibition rate wettability index imbibition characterization spontaneous imbibition porous media waterflood recovery Oil Recovery Special Edition 1999...
Journal Articles
J Can Pet Technol 38 (13).
Paper Number: PETSOC-99-13-20
Published: 01 December 1999
... into the laboratory prepared sandpacks. The acidity, interfacial tension and contact angle of Kareem crude oil were investigated. The present study is concerned with the effect of alkaline slug concentration, slug size, varying shale content and alkali type on oil recovery. Kareem crude oil is highly acidic (2.7 mg...
Journal Articles
J Can Pet Technol 38 (13).
Paper Number: PETSOC-99-13-21
Published: 01 December 1999
... media Fluid Dynamics concentration contact angle surfactant solution flow resistance gas injection method Engineering pressure drop oil saturation wettability waterflooding propane foam performance permeability solvent mixture foam surfactant Oil Recovery Special Edition 1999...
Journal Articles
J Can Pet Technol 38 (13).
Paper Number: PETSOC-99-13-42
Published: 01 December 1999
... at the Elk Point Cummings formation. This paper reports on the results of a laboratory investigation and on the discovery of a method as well as its field implementation to prevent wettability shifts at elevated temperatures. The contact angle experiments revealed that a wettability transition to an oilwet...
Journal Articles
J Can Pet Technol 37 (03).
Paper Number: PETSOC-98-03-04
Published: 01 March 1998
... of a user-defined global objective function with respect to various model parameters. Application of this procedure for many counter-current imbibition experiments reveals that a single dimensionless function can represent imbibition recovery history for most rock samples. Also, apparent contact angles...
Journal Articles
J Can Pet Technol 35 (01).
Paper Number: PETSOC-96-01-05
Published: 01 January 1996
...D.N. Rao; M.G. Girard Adhesion of crude oil to the reservoir rock surface influences oil recovery in primary, secondary and tertiary operations. The various wettability measurement methods reported in the literature either do not account for the effects of adhesion on measured contact angles...
Journal Articles
J Can Pet Technol 21 (03).
Paper Number: PETSOC-82-03-01
Published: 01 May 1982
... efficiency was least where the displacing phase was strongly wetting (contact angles <30 degrees) and greatest for conditions of intermediate wettability (contact angles – 90 degrees) in systems with large pore-to-throat size ratios. In extending these conclusions to multi-pore media with branching...
Journal Articles
J Can Pet Technol 19 (03).
Paper Number: PETSOC-80-03-06
Published: 01 July 1980
...C.E. Brown; E.L. Neustadter The wetting behaviour of oil/water/silica systems is examined, principally by measurement of contact angles. Both pure and crude oils are used, with aqueous phases covering a range oj PH and salt content. A description of the wetting behaviour in terms of the system...
Journal Articles
J Can Pet Technol 15 (04).
Paper Number: PETSOC-76-04-05
Published: 01 October 1976
...Norman R. Morrow The dependence of capillary pressure on wettability as defined by contact angle has been investigated. Drainage and imbibition capillary pressure measurements are presented for six different types of polytetratfluoroethylene (PTFE) porous media. Changes in capillary displacement...
Journal Articles
J Can Pet Technol 14 (04).
Paper Number: PETSOC-75-04-04
Published: 01 October 1975
...Norman R. Morrow The effect of surface roughness on contact-angle hysteresis was investigated though a study of capillary rise in PTFE (polytetrafluoroethylene) tubes. Systems were chosen to give intrinsic contact angles (contract angles measured at a smooth PTFE surface) covering the complete...
Journal Articles
J Can Pet Technol 13 (04).
Paper Number: PETSOC-74-04-04
Published: 01 October 1974
.... (4) have recently summarized some of the areas of conflict. enhanced recovery dodecane water saturation Upstream Oil & Gas fluid pair relative permeability test contact angle Fluid Dynamics core 1 relative permeability nitrogen reservoir imbibition displacing nitrogen flow...
Journal Articles
J Can Pet Technol 13 (04).
Paper Number: PETSOC-74-04-05
Published: 01 October 1974
... 1 if 6 > o. . . . . . . . . . . . . . . . . . . . . . . . . . . .. (53) and for imbibition conditions, Zimb (6) < 1 if 6> 0 (5b) Under the definitions adopted for Hdr and H;mb, it is clear that both Zdr (In and Zimb (e) approach unity as the contact angle, e, vanishes. FIGURE 2 - Stable and unstable...
Journal Articles
J Can Pet Technol 12 (02).
Paper Number: PETSOC-73-02-04
Published: 01 April 1973
...A.C. Lowe; M.C. Phillips; A.C. Riddiford The relaxation of initially advancing and receding contact angles has been studied for two basic systems, water/ saturated air/marble, and aqueous solution/oil/marble, and static advancing contact angles have been studied in the water/air/marble system. All...
Journal Articles
J Can Pet Technol 11 (03).
Paper Number: PETSOC-72-03-03
Published: 01 July 1972
...Frank G. McCaffery An apparatus has been developed for measuring interfacial tensions and contact angles at pressures from atmospheric to 10,000 psia (680 atmospheres) and temperatures from 77 °P (2SC) to 320 °F (l60 °C). This capability is required for determining oil/water interfacial tensions...

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