摘要:
A method is provided for monitoring a flow behavior of mixed components without requiring additional instrumentation or sampling. The method is carried out by determining ratios of the power required to rotate a mixing impeller at different rotational speeds and then comparing the ratios. Characteristics about the mixed components are determined based on differences between the ratios.
摘要:
Systems and methods of beverage dispensing include a dispensing unit, at least one diluent source, and at least one flavoring source. An amount of beverage product to dispense is calculated and a beverage product including at least one diluent and at least one flavoring is dispensed. An actual diluent-to-flavoring ratio is calculated based upon at least one value from the sensing unit during the dispense of the beverage product.
摘要:
A hydro-blender for mixing base fluids and particulates for use in pumping can include a transport device. The hydro-blender can also include a liquid tank connected with the transport device. An inlet manifold can be located within the liquid tank for receiving fluid from one or more fluid sources. The inlet manifold can be in fluid communication with one or more fluid sources. The hydro-blender can also include a mixing tub in communication with one or more hoppers via one or more augurs.
摘要:
A slurry mixing system calculates a density of a slurry using measured pressure differential and bulk velocity of the slurry. Slurry from mixing of dry blend and mix fluid enters a one or more tanks having agitators. A pump then pumps the slurry from the tank(s) to the well, and a portion of the slurry is recirculating back to a mixer. From the recirculated path, a direct slurry weight sensor measures a pressure differential of the slurry between two vertical measurement points of a known volume, and the sensor measures a velocity of the recirculated slurry. Based on these measures, the controller calculates a density of the slurry, monitors a ratio of the dry blend and the mix fluid, and adjusts the ratio based on the calculated density of the slurry if there is a discrepancy.
摘要:
Methods for controlling the in-feed and discharge rates of materials flowing into and out of a mixing process where one priority is to achieve a target mixture flow rate from the mixing process and another priority can be to achieve a target value for a mixture property. Actuators can be operated to control material in-feed rates, the mixture composition, and discharge rate, and can maintain a hold-up of the mixture in the mixing process. A total flow rate controller provides a control signal to a controller acting on the discharge rate and a controller acting on the in-feed rates. The mixture discharge flow rate can be automatically reduced from its desired target when the commanded rate of at least one of the materials exceeds its available supply rate as inferred from an inability to maintain the targeted value for the mixture property.
摘要:
An automatic cementing system and method are disclosed for precisely controlling the density of a slurry during a continuously mixed cement application. The system includes an input water line and a dry cement hopper for supplying water and cement, respectively, to a mixing chamber. The mixing chamber includes two chambers, Chamber A and Chamber B, for thoroughly mixing the water and cement together to form a cement slurry. Chamber B includes a level sensor for measuring the change in slurry level. The input line includes a pump for supplying the water to the mixing chamber, and a flow meter for measuring the rate at which the water is supplied. Similarly, the hopper includes a slide-gate valve for regulating the rate at which the dry cement is supplied to the mixing chamber. A discharge line with a discharge pump and a discharge flow meter receives and discharges cement slurry. A recirculation line is included for density control during initialization. A system controller receives operational parameters from the operator, including desired slurry density, mix water density, and dry cement density. As the slurry discharge rate increases to the desired value, the mix water flow rate increases to maintain the calculated volume percentage of mix water in the discharge slurry constant. The tub level drops, causing the slide-gate valve to open and add cement, raising the tub level to the setpoint level and maintaining an accurate discharge slurry density.
摘要:
Method and apparatus for mixing mud for use in well operations, including independently operable high and low capacity systems for supplying mud solids to a mixing tank. A radioactive, density measuring control system is employed which controls the rate of solids supply, with the same calibration setting being maintained for high and low rates of addition of solids material to the mud. A pneumatic conveying system is employed to convey the solids through the system. Vane-type feeders and mud shrouds are employed to minimize the dust level during the mud mixing operation.
摘要:
A fluid feeder includes a fluid storage unit and a pre-treatment unit. The fluid storage unit provides a fluid flow path through which a fluid mixture of a hydrophilic fluid and a hydrophobic fluid flows. The fluid storage unit is connected through a plurality of connectors to the fluid flow path having a portion, in which an ultrasound focusing unit for focusing ultrasound to disperse and mix the fluids contained in the fluid mixture by focused ultrasound is mounted, to flow the fluid mixture in the fluid flow path and to flow the fluid mixture dispersed by the ultrasound focusing unit through the fluid flow path. In the pre-treatment unit, the fluid mixture is dispersed at micrometer scale and supplied to the fluid storage unit before the fluid mixture is stored in the fluid storage unit.