Application Status oil fracturing proppant

Understood fracturing technology is an important means of transformation of oil and gas fields, it is the use of artificial methods to fluid injection rock grassroots pressure to exceed the formation fracture strength, so that cracks around the wellbore rock formation A high-flow capacity of the channel has. In order to maintain the open crack formation after natural gas fracturing oil and gas product can be smoothly through the injection of particulate proppant is one of the important measures.
Fracturing technology for worldwide oil production plays a very important role, and oil is a key oil fracturing proppant fracturing technology can be successful. Quality proppant can play an important role for the extraction of crude oil. Oil fracturing proppant, is to keep the deep fissure formation rock split state support, particle size 0.4-0.9 mm, there is a certain roundness and sphericity. During use, the proppantfracturing sand fluid mixing, the use of coercion injected deep cracks in the rock strata support in order to improve the rate of oil derivative, increase oil production.
The commonly used quartz sand proppant, and a variety of resin coated ceramic composite particles. Which quartz sand cheapest price, relatively low density, to facilitate the construction of pumping, so it is widely used. However, the low intensity of quartz sand, the ball is poor, thereby reducing fracture conductivity, especially not apply to closed high pressure deep. Quartz sand coated with a resin composite particles, the sphericity improved corrosion resistance can be achieved a higher index, even if the internal quartz sand are crushed, the outside may be coated with a resin layer wrapped pieces, holding diversion cracks capacity, is a law of the development direction of fracturing support agent, but the current product shelf life is relatively short, the cost is also high. With a variety of different materials and manufacturing process of ceramic, quartz sand relative density is slightly higher than for the fracturing proppants fluid pumping conditions and are demanding higher performance, increased the difficulty of hydraulic fracturing time, but ceramic ball and roundness of quartz sand than good, can reach more than 0.9, especially corrosion resistance, temperature resistance and compressive strength are higher than the quartz sand, so the fracture conductivity decline rate is much lower. Now has more and more widely used oil and gas fields.