Guangdong oilfield cementing silica powder prices where good

I. Overview oilfield cementing Silica: Silica oilfield cementing is a hard, stable wear and chemical properties of minerals, the main mineral component is SiO2, hardness 7-7.5, no cleavage of brittle, conchoidal fracture, oil sheen, a density of 2.65 and a bulk density (20-200 mesh 1.5), its chemical, thermal and mechanical properties have obvious anisotropy, do not dissolve in acid, at more than 160 ℃ dissolved NaOH, KOH solution, melting point 1650 ℃. Silica is made of natural quartz (SiO2) or fused silica (quartz natural high temperature melting, after cooling the amorphous SiO2) by crushing, jet mill, flotation, acid purification, high-purity water treatment process with a multi-channel powder, is a non-toxic, tasteless, non-polluting inorganic non-metallic materials. Because it has good heat resistance, acid corrosion, poor thermal conductivity, high insulation, low inflation, stable chemical properties, hardness and other excellent performance, with the high-tech field of fast Meng development, Silica will also enter a new historical period of development. Second, our product list: oilfield cementing silica powder 400 mesh size 600 mesh 800 mesh mesh 1250 1000 1500 4000 2000 mesh mesh mesh mesh 8000 6000 10,000 head three head, oilfield cementing the role of Silica: oil well cementing with silica powder is a highly reactive, spherical particles of powder, the main ingredient is silica, fineness and specific surface area of ??80 to 100 times more cement, using the right amount of silica powder in cementing, can play the following roles: 1 significantly improve well compressive and flexural, impermeability, corrosion, impact and abrasion resistance. 2, with water retention, prevent segregation, bleeding, significantly reduced the role of pumping concrete pumping resistance. 3, significantly extend the life of the well, especially in salt corrosion, chloride contamination, high humidity and other harsh environments, can improve the durability of concrete more than doubled. 4, about 5-fold the efficacy of the cement used in oil wells to reduce the cost of the ordinary. Fourth, the oil well cementing with silica powder characteristics: 1, high refractoriness; microsilica main chemical components of silicon oxide, silicon dioxide which is about 99%. Because the melting point of 1725 degrees Celsius silica, high refractory material. Therefore, silica powder has a very high refractoriness, generally up to 1600-2000 degrees Celsius, making it an excellent high performance refractories. 2, light weight, thermal insulation; Silica slow minimal thermal conductivity, it is not only light, but also excellent thermal insulation, thermal insulation materials in the field for which to show their talents in a lightweight foundation. 3, hardness, high strength; the silicon powder is hard substances silicon oxide mineral phases (quartz and mullite) formed 7-7.5 Ta Mok's hardness level, the true density of 2.10-2.65 g / cm3, and therefore silica powder with high intensity. 4, good insulation, low electrical conductivity; general resistance of the insulator are decreased with increasing temperature, silica powder by contrast, resistance increases with increasing temperature, this advantage is not available in other insulating material, so It is the production of high performance insulating material of choice. 5, fine grain size, surface area: the natural form of silica powder particle size 1-250 microns. The specific surface area 300-360g / cm2, and cement almost. Therefore, microsilica without grinding, can be used directly, fineness can meet the needs of various products.