Oil fracturing proppant In addition to a small amount of tungsten heating

In addition to a small amount of tungsten heating material for high temperature furnace, heater tubes and composite reinforcement endures, most of them are used for the Resin coated ceramic proppant production of whiteTungsten wireFilament incandescent lamps and halogen and gas discharge lamp electrodes. Cathode gas discharge lamp for use as tungsten or tungsten rods, in order to reduce its electron work function, shall be added
0.5-3% thorium, tungsten thorium called wire. Since Thorium is a radioactive element, pollute the environment, it made a useful cerium tungsten thorium instead of cerium cerium tungsten wire or rod. But ceriumEvaporation rate, so that a tungsten filament or tungsten, cerium Ce can be used for small power pole gas discharge lamp.Once the use of tungsten at high temperature recrystallization becomes very brittle in case of a shock or vibration can easily break. In some of the requirements of high reliability electric light Ultra lightweight proppant in order to prevent breakage of the filament, often in the tungsten doped with 3 to 5% of rhenium, tungsten, rhenium wire is called, it can make the tungsten brittle transition temperature down to the extension at room temperature

Ceramic proppant

In effect the success of resin coated sand proppant , the effective length depends primarily on the quality of the proppant. The role of fracturing proppant that produce hydraulic fracture filling, so that it becomes closed again, and the ability to form a crack diversion has the ability to get the stream. Fracture conductivity is the ability to transport crack spread reservoir fluids, and propped fracture permeability and fracture proppant closure wide representation of the product is generally believed that the type of proppant in the fracture and the physical properties of distribution and fracture closure pressure is the main factor controlling the fracture conductivity. Thus, the physical properties of palm Resin coated ceramic proppant and fracture conductivity affected by many factors, there is a reasonable choice in favor proppant fracturing fluid and conducive to fracturing proppant material made more precise requirements.