Quartz sand has the following characteristics

Natural quartz sand is used in the first and widespread natural gas fracturing ( about 55% ) , the main chemical composition is silicon oxide (SiO2), while with a small amount of aluminum, iron, calcium, magnesium, potassium and sodium compounds, and a small amount of impurities . Quartz content is an important indicator of the quality of quartz sand , quartz content of quartz sand fracturing is generally about 80% ; quartz content of foreign high-quality quartz sand up to 98% .
Quartz sand has the following characteristics:
( 1 ) sphericity of the quartz sand is preferably broken, still maintain a certain conductivity .
( 2 ) a relatively low density of the quartz sand , to facilitate pumping .
(3) 0.154mm ( ie 100 mesh ) or fine sand can be used as a natural crack down fracturing fluid filtration agent , filling cracks in oil fracturing proppant with the master .
Lower ( 4 ) the intensity of quartz sand and began crushing pressure of approximately 20MPa, fragmentation will greatly reduce permeability, but also by embedding, fines migration , congestion, fracturing fluid and non- Darcy flow effects of injury , fracture conductivity can be reduced to below 10% of the initial value , and therefore suitable for low pressure reservoir is closed .
( 5 ) the price is cheap, you can make the best in many areas . Origin of fracturing with quartz sand wide , such as Lanzhou sand, sand , Fuzhou , Fujian , Hunan Yueyang sand.

Paint manufacturing and construction technology requirements

In order to adapt to the requirement of ultra lightweight proppant manufacturing and construction process, coating with synthetic resin should be has the following features:
(1) in the coating with the dispersion medium, good solubility and dispersion.
(2) has excellent film-forming and specific coating performance, such as gloss, fullness, hardness, flexibility, weather resistance, chemical corrosion, etc.
(3) with other coatings can miscibility proppant conductivity synthetic resin, modified so that each other, improve the coating performance.
(4) properly pigment wetting, pigment dispersion in the paint.
(5)Good storage stability.
(6) Appropriate molecular weight, such as solvent crosslinking curing coatings with synthetic resin molecular weight generally under 104, solvent of conversion coating with synthetic resin molecular weight in 104 ~ 105, and latex paint with molecular weight more than in 105.
All landowners electrodeposition coatings with resin will take charge, and can dissolve in water.

Oil and gas well sand production is one of the important problems facing the loose sandstone reservoir

Oil and gas well sand production is one of the important problems facing the loose sandstone reservoir. The harm of sand production is mainly manifested in the following four aspects:
Oil and gas well production or shut down
Oil and gas well sand production, easy to cause sand buried reservoir, sand plug tubing and manifold and storage tanks in the sand, which was forced to shut down operations. Rinse the sand buried reservoir, sand plug removal of tubing, both time-consuming and expensive, hydraulic fracturing benifits can't completely solve problem. To resume production soon and need to work, live, shorter production cycle and make the oil and gas production, homework cost huge increase, serious economic loss.
The ground and underground equipment and pipeline abrasion
Hydrocarbon flow carried in the formation of sand main composition is sio2, the hardness is very high, is a destructive ceramic proppant suppliers abrasive, can make the pump seat wear and no seal, valve ball pitting, rod and pump cylinder strain, ground valve failure, serious erosion, oil transfer pump impeller thus forced to shut-in homework, replace or repair the equipment, cause the loss of production, the cost is rising.
Casing damage to oil and gas Wells scrap
Serious sand production for a long time in outside casing a huge hole, inner and outer force imbalance lead to sudden formation collapse, cause casing deformation, light weight, casing was wrong fault collapsing, lead to oil and gas Wells of scrapped.
Destroy the formation of the original structure or cause the formation permeability near wellbore area of serious decline
Oil and gas well after the sand, sand migration, formation sand near wellbore area of sedimentation is more, far wellbore area becomes loose structure. Caused a significant reduction in the formation permeability near wellbore area, oil and gas well production decline.
Solve the problem of oil and gas Wells sand production, must be based on the early prevention and control, to reduce the damage to the reservoir cementing

High performance ceramsite is a suitable raw materials

High performance ceramsite is a suitable raw materials, ceramsite sand through special processing technology, produced by the different density level, high strength, low porosity, high performance ceramsite is refers to the ceramic proppants strength, bibulous bauxite proppant is low, density smaller roasting or unburned ceramsite. Light aggregate is rich in resources, wide variety. It has natural lightweight aggregate, solid waste light aggregate and artificial light aggregate. According to their formation conditions and performance point of view, can be used in the preparation of high performance concrete only through special processing of high performance ceramsite, foreign generally call it high performance light aggregate, also it can be said for the Gao Jiangtao grain in China, the round spherical ceramsite is USES the granulating disc production. Ceramsite sand grinding powder materials will be first, then add water granulation, made from a ball again for roasting or maintenance. At present our country most of the ceramsite is this species.

High temperature flue gas purification with pore gradient design

High temperature flue gas purification with pore gradient design, preparation and properties of high temperature ceramic fiber membrane filtration technology is an important part of industrial emissions and environmental engineering, and high temperature ceramic ultralight weight material is the core and key of high temperature liquid separation and purification. Therefore, this study based on the preparation of low filter resistance, high separation efficiency, and has good high temperature resistance, corrosion resistance, thermal shock features such as pore gradient ceramic fiber membrane, it will be on the high temperature gas such as high temperature flue gas purification treatment and environmental protection is of great significance. On the basis of the reading of resin coated frac sand amount of literature, and through the hole gradient ceramic fiber membrane using the environment requirements and preparation conditions of comprehensive analysis, design and determine the support material, ceramic fiber type and high temperature binder, the key points of the choice of pore-forming agent, and according to the high temperature dust gas particle test results and the size of the situation, determine the fiber membrane pore gradient ceramics ceramic fiber separation layer, transition layer and the pore diameter of porous ceramic membrane support matching elements. System to study the fiber membrane pore gradient ceramics with the method of preparation of porous ceramic membrane support, for the first time the heat shock casting molding process, and by adjusting the process parameters of preparation of the high temperature resistance, good thermal stability, high porosity and permeability of small resistance, high strength, large aperture cordierite porous ceramic membrane support, and study the micropore of porous ceramic membrane support performance especially aperture effect the performance of the film and film layer.

The performance of the ceramsite sand related knowledge

According to the light aggregate and the test method of GB/T 17431.1-1998 new standards, Gao Jiangtao sand refers to the structure strength of symbols is not less than 25 mpa with light coarse aggregate. Their level of technical requirements in addition to the density, label tube pressure strength, strength, bibulous rate is a specific index, other indicators (grain size distribution, softening coefficient, grain shape coefficient, harmful substance content, etc.) the same as the super light, general ceramsite. Large production Gao Jiangtao when yield, low energy consumption, high added value, sales price super light natural gas fracturing ceramsite, ordinary high 50%. Prepared with ceramic proppants Jiangtao grain of high grade and prestressed lightweight aggregate concrete must be homogeneous. High performance ceramsite sand is refers to the high strength, bibulous rate is low, density smaller roasting or unburned ceramsite. Light aggregate is rich in resources, wide variety. It has natural lightweight aggregate, solid waste light aggregate and artificial light aggregate. According to their formation conditions and performance point of view, can be used in the preparation of high performance concrete only through special processing of high-performance ceramsite.

When it comes to the difference between the ceramsite equipment and ceramsite sand equipment, we must talk about the equipment to produce frac sand companies and ceramsite sand: the difference between the particle size, particle than ceramsite ceramsite sand particles is much larger, ceramsite grain size is usually 5 ~ 20 mm, the biggest can reach 25 mm, ceramsite are commonly used to replace the gravel and pebbles in concrete; And ceramsite sand is a kind of ceramic particle products, fineness of grain size is much smaller, and has the very high fracturing strength, mainly used for oil well under oil fracturing proppant, in order to increase the output of oil and gas, belongs to the environmental protection product, specific can see: oil fracturing proppant production process. From the raw material, no difference with ceramsite ceramsite sand, frac sand is also same, does not use the technology and equipment of discharging size is slightly different. Remember the last time send the site to a consulting ceramsite equipment customers, customer should say your website is ceramsite sand equipment, no ceramsite equipment, actually the difference between both devices are small, so the customer can visit our kaiyuan machinery ceramsite sand equipment project network time to pay attention to, this site related words are: ceramsite, ceramsite production line equipment, ceramsite sand equipment, ceramsite sand production line, etc., about my company to the customer to do case, can see: ceramsite sand equipment successful cases. Process, for example, 80 ~ 80 cubic ceramsite sand equipment used are: jaw crusher, ceramsite sand mill, mixer (with chrome), (optional) adhesive mixing barrel, the double helix conveyer, strong pressure ball machine, when output is large, using ceramsite sand pelletizer is used when the FU chain conveyor.