Wettability Measuring Apparatus and method using Centrifuge in Liquid-Liquid/Liquid-Gas System

摘要

The present invention relates to a method of measuring reservoir wettability wetting by measuring the core of the centrifuge container and it hired reservoir cores relates to, and more particularly, various sizes and shapes of the reservoir by measuring the wettability to target the core sample, by providing the right information to make a difference in the water-wet reservoir oil, the means to improve the production of gas provided. Wettability measurements of the centrifuge container appointed reservoir cores according to the present invention, the storage reservoir and the drainage core mechanism for collecting the water drained from the reservoir is mounted on the core while rotating the centrifuge; A reservoir to drain water from the drain core storage mechanism and a suction mechanism for measuring the brine is drawn into the reservoir is mounted on the core while rotating the centrifuge, and the drain mechanism, the drainage mechanism 30 has one end open and the reservoir inside the core (1) is a multiple unit housed 31, is formed on the other side of the drain unit to the home in the form of smaller diameter than the inner diameter of the drain body to form a water collecting space, by the house so that the reservoir is separated from the core reservoir (31a), coupled to the opening of the drain body and the drainage pipe (32a) made of jidoe drain cap 32 is formed, wherein the drain body and the house and the drain reservoir cap is made of a transparent or translucent acrylic resin, the the suction mechanism is, one side of the glass film coating layer 43 is formed on the inside as an open structure, and the suction tube body accommodating the reservoir core, and discharge the water in the drain mechanism (41), is coupled to the suction opening of the suction body (42a) comprises a suction cap 42 is formed, the suction body and the suction cap is made of a transparent or translucent acrylic resin. wettability measured using a wettability of the centrifuge container appointed reservoir core according to the present invention measuring method, oil and water or a gas with the core having a porosity of reservoir water measurements, the first step and the porosity is measured in the oil reservoir injection core to supply by controlling the wettability of the reservoir core; The second step and by injecting brine to the reservoir for changing the core with brine saturation after the first step; Said core equipped with a reservoir of brine saturation through a second step after the drain mechanism to operate the centrifuge fill the inside of the drain mechanism to the oil or gas to raise the number of revolutions per minute while the amount of water discharged from the revolutions per minute and a third step of calculating the number of saturation of the core by measuring; A fourth step of measuring the number and degree of saturation of the reservoir core by measuring the amount of oil or gas in the brine to soak in the atmospheric pressure outside the reservoir core without the water discharged through the third stage; And a fifth step of measuring the amount of salt intake, but the operation to a centrifuge equipped with a suction device for soaking in the salt reservoir core subjected to the fourth step in accordance with the revolutions per minute; The second step drawn through capillary pressure through the fifth step - to be calculated using the saturation graphs Amott-Harvey expression comprises a sixth step of converting the wettability numerically ;