... Publication Rights Reserved Abstract Directional movement of injected water has been found to exist in many oil reservoirs in which water floods are being conducted. This paper discusses many of the ramifications of natural fractures and directional permeability in oil reservoirs being water...

... been concluded that the major problem in flooding Fry Sand reservoirs is the restriction of the injected water to only the Fry Sand. Introduction There have been many successful waterfloods in Strawn Sand reservoirs of West Central Texas during the past few years, but most of the attempts to water...

... be liquid since it is the only sound reflector which can move to any extent. Upstream Oil & Gas bottom hole pressure information drillstem/well testing level instrument pressure reservoir Drillstem Testing gas column pressure back pressure fluid level operator pump capacity valve...

... Abstract The standard waterflood prediction method, based on the familiar multilayer reservoir model was modified so that provision was made for resaturating the free gas space in each layer. The method was then applied to an actual reservoir case for various assumed stages of primary...

... with Continental Oil Company. The oil reservoirs affected by this water flood program involve three members of the Hoxbar sand of Middle Pennsylvanian Age which is found at depths of 1100 to 1200 feet subsurface. The individual sand members are designated locally as the "A", "B" and "D" sands. Figure 2 contained...

... injection plus recovery after water injection. Often we can do little as engineers to affect total primary recovery other than to use the reservoir energy which is available as efficiently as possible. However we can, as engineers, decide when and in what manner water injection should be started to gain...

..., and accountants, are legion. Numerous examples of cooperative unit agreements in Texas and elsewhere not only show increasing reliance on these activities, but the continued development of engineering ingenuity necessary to meet the demands of modern reservoir performance and conservation practices. A report (39...

... and pressure profiles were calculated as functions of time. The results of these calculations indicate that for the porous medium studied, the time required to imbibe a fixed volume of water of a certain viscosity is approximately proportional to the square root of the viscosity of the reservoir oil whenever...

... depth is about 2800 feet, is the reservoir being flooded. Unitization was effected July 1, 1958, and Stage I, which covers 1800 acres, began operating on May 8, 1959. The fundamental design principle, whose objective was to effect the maximum oil recovery from the minimum combined capital and operating...

...-all flood. It is this type of curtailment which will be considered in this discussion. Upstream Oil & Gas consideration laboratory experiment reservoir waterflooding water flood curtailment water flood flood oil production imbibition injection enhanced recovery argument Oil...

... groups: Forward Thermal Drives wherein it is desired to increase the bulk of the reservoir temperature for the purpose of lowering crude oil viscosity in place and/or of liberating solution gas. Subclasses of this group are: reservoir heating throughout the bulk of the pay. reservoir heating...

... for profitable operation. A screening process should be used to select only those properties for flooding which have favorable reservoir conditions and the development of those selected should be based on a thorough engineering analysis to seek out any indications of future operating problems in advance...

... in Pennsylvania. According to one published paper and other available data, this reservoir is expected to yield a recovery from water flooding of 2,400 bbl/acre over a period of 10 or more years. The Maracaibo Oil Exploration Corp. has developed and operated an 80-acre tract within this reservoir. We...

... The performance of a water flood is a composite of many separate effects, which fall into a variety of categories. Nature gives many variables through the character of the reservoir rock and fluids and the manner in which they interact. Man imposes additional variables through the wells which...

... from 11 to 500 B/D natural. Production has been obtained from three other formations all underlying the Yates sand formation. In addition to the Yates wells, a total of 49 wells were drilled and completed in the Seven Rivers sand reservoir found at about 1,800ft, the San Andres Lime reservoir found...

... low. Oil gravity is 41°API and viscosity of the reservoir fluid is relatively low. Primary recovery to Aug. 1, 1949 was 643,631 bbl, at which time field production from 103 wells was 80 BOPD at very high GOR. Reservoir pressures were down to 350 psig from 1,300 psig original. The productive area...