1
Ki C Hong, Suzanne Griston, Joseph W Ault: Limited entry method for multiple zone, compressible fluid injection. Chevron Research Company, J A Rafter Jr, Edward J Keeling, February 3, 1987: US04640355 (34 worldwide citation)

The present invention is a method and apparatus for injecting compressible fluids into multiple zones of a hydrocarbon bearing formation, in particular injecting compressible fluid at a predetermined, constant rate into multiple zones through a single tubing string. Producing zones are packed off an ...


2
John R Deming, Suzanne Griston, Ki C Hong: Parallel string method for multiple string, thermal fluid injection. Chevron Research Company, John A Rafter Jr, Edward J Keeling, June 17, 1986: US04595057 (14 worldwide citation)

A method for thermal fluid injection into a plurality of strata wherein a well is packed off to establish a first and a second zone. A first tubing string is introduced and is terminated in the first zone. The first tubing string is paralleled by a second tubing string. The first and second tubing s ...


3
Ki C Hong: Well placement for steamflooding steeply dipping reservoirs. Chevron Research & Technology Company, E A Schaal, E J Keeling, April 7, 1992: US05101898 (8 worldwide citation)

Steam is injected in a multi-spot pattern in a dipping reservoir. The injection point of that steam is downdip and is offset from the pattern center by at least one-fifth the distance from the pattern center to the downdip producer row of that pattern. Preferably, the amount of offset is between two ...


4
Suzanne Griston, Ki C Hong: Metering of two-phase fluids using flow homogenizing devices and chemicals. Chevron Research and Technology Company, E A Schaal, W K Turner, March 2, 1993: US05190103 (8 worldwide citation)

A two-phase fluid is metered by injecting a surfactant into the two-phase fluid, homogenizing the fluid and surfactant with either a porous medium or an orifice plate to form a pseudo-single phase fluid, and metering the pseudo-single phase fluid. In one embodiment, both the injection of surfactant ...


5
Ki C Hong, Victor M Ziegler: Enhanced oil recovery method using an inverted nine-spot pattern. Chevron Research and Technology Company, E A Schaal, W K Turner, April 13, 1993: US05201815 (6 worldwide citation)

In an inverted nine-spot pattern in an areally homogeneous reservoir, oil recovery is enhanced when the completion of the sidewells is restricted to the lower 20% of the reservoir. An inverted nine-spot pattern has a steam injection well at the center of the pattern and production wells at each of t ...