Zobrazeno 1 - 10
of 197
pro vyhledávání: '"G.P. Willhite"'
Publikováno v:
SPE Journal. 10:247-255
Summary Gelled polymer treatments applied in injection and production wells are used to alter fluid flow in oil reservoirs so that oil production is increased and water production is decreased. A common gel used in field treatments is made by crossli
Publikováno v:
SPE Journal. 5:371-376
Summary The application of KUSP1 biopolymer for use in permeability reduction treatments of oil reservoirs was investigated. KUSP1 is a nontoxic polysaccharide that is produced by a bacterium. Alkaline solutions of KUSP1 have low viscosities and can
Publikováno v:
SPE Reservoir Evaluation & Engineering. 3:386-393
Summary The effect of various parameters on the gelation of the resorcinol-formaldehyde (RF) system and a newly developed sulfomethylated resorcinol-formaldehyde (SMRF) system was investigated. The SMRF system was more tolerant of salinity, divalent
Publikováno v:
SPE Journal. 5:324-330
Summary Chromium(III)-polymer systems are often used in permeability modification treatments. The transport of chromium(III) in-depth in porous rocks is sometimes limited due to precipitation. Precipitation is caused by the increase in the solution p
Publikováno v:
SPE Production & Facilities. 15:159-167
Summary Gelation of chromium(III)/xanthan systems in dolomite core material for in-depth matrix rock treatments was investigated. The gels contained approximately 2,000 ppm xanthan and the dolomite core material was obtained from a San Andres dolomit
Publikováno v:
SPE Reservoir Evaluation & Engineering. 3:209-215
Abstract Injecting gelant to change the flow characteristics of a reservoir is a viable improved oil recovery technique. Many gel systems are affected by the solution pH in that gel time is pH dependent. The treatment of carbonate reservoir rock is o
Publikováno v:
SPE Journal. 3:337-343
Summary The gelation behavior of a polyacrylamide/aluminum citrate colloidal-dispersion gel (CDG) system was investigated in sandpacks at frontal advance rates of 2 ft/D. A gelatinous mass formed where the gelant encountered a change in flow medium.
Publikováno v:
SPE Production & Facilities. 13:97-103
Summary A study was undertaken to determine the effects of pH and shear rate on the gelation of a xanthan-Cr(III) solution of the type that has been used successfully for permeability modification of oil fields. The rate of gelation and gel strength
Publikováno v:
SPE Advanced Technology Series. 2:190-198
Swelling and syneresis behavior was measured by equilibrium swelling of xanthan gum-Cr(III) gels that had been aged for over 100 days. The dependence of swelling on pH, temperature and presence of calcium ion was determined. Degree of swelling varied
Publikováno v:
SPE Reservoir Engineering. 8:299-304
Summary This paper presents an experimental study on gelation of a xanthan/chromium(III) system in unconsolidated sandpacks at frontal velocities between 3 and 120 ft/D. High flow resistance developed at specific locations in the sandpacks in experim