Oil fracturing proppant: Simple to understand oil fracturing ceramic proppant Research

Oil  Fracturing proppant   Development Background: oil fracturing proppant is the use of layers deep rock fractures remain split state supports, its role is to proppant fracture walls, so stop the pump column after the bottomhole pressure When the pressure drops below the closed eye leading to cracks in oil and gas wells remain open. Oil and gas wells inject  Proppant  is intended to improve the ability to penetrate the reservoir to increase oil production. Since 1947, hydraulic fracturing technology in the United States successfully tested so far has 60 years of development, the proppant material is also changed a lot. 1950s and 1960s, aluminum balls, plastic balls, walnut shells, glass beads are used to effect the proppant material to use, but because of their own shortcomings have been eliminated. Currently used mainly  Frac sand  proppant and ceramic.

Oil fracturing  ceramic proppant  development status: As oil  fracturing proppant ，  ceramic sand sand with relatively low density, ease of construction pumping, low price advantages. However, there are low strength, easily broken, low sphericity and surface finish, is not conducive to permeation of oil guide shortcomings. Therefore,  Frac sand  only for shallow, low closure pressure hydraulic fracturing of oil and gas layers. For deep low permeability reservoirs, as deeply buried reservoirs, formation closure pressure is high, the temperature is higher, the main use of artificial ceramic proppant, ceramic proppant is prepared spherical particles of ceramic raw materials. According to the production process can be divided into two categories: melt blowing method and the sintering method. Ceramic prepared by melt blowing is bauxite, auxiliary materials mixture, melted at high temperatures, high pressure gas injection into beads obtained.