The purpose of the ceramsite

Ceramsite has excellent performance, such as low density, high cylinder pressure strength, high porosity, high softening coefficient, good frost resistance, resistance to JianJiLiao excellent reactivity, and so on. Especially frac sand of the ceramsite density is small, internal porous, morphology, composition is uniform, and with a certain intensity and strong, thus has light weight, corrosion-resistant, antifreeze, and other multi-functional characteristics of seismic and well insulated. Using ceramsite these excellent performance, it can be widely used and building materials, gardening, food and beverage, fire-resistant insulation materials, chemical industry, petroleum and other departments, application field is more and more widely, and is still rising. At the beginning of the ceramsite invention and production, it is mainly used in building materials field, due to the continuous development of technology and people to know more deeply, the fracturing proppant of the ceramsite ceramsite already more than building materials this traditional scope of application of expanding its application in new areas. Applications of ceramsite in building materials, now has fallen to 80%, from 100% in other aspects of the application, has accounted for 20%. With the continuous development of new application of ceramsite, it will gradually increase the proportion of in other ways. Particles is all over the world to get fast development, because it has other materials do not have many excellent properties, the excellent performance, the excellent performance make it has the effect cannot be replaced by other materials. These excellent performance has the following several aspects. Density is small, light ceramsite its bulk density is less than 1100 kg/m3, generally is 300 ~ 300 kg/m3. Made with ceramsite as aggregate concrete density is 1100 ~ 1800 kg/m3, the corresponding concrete compressive strength is 30.5 ~ 40.0 Mpa. The biggest characteristic of ceramsite is appearance is hard, and there are many pores inside. These microporous give the haydite lightweight properties. 200 lytag concrete density is about 1600 kg/m3, and the same label of the density of ordinary concrete is up to 2600 kg/m3, both differ 1000 kg/m3. Heat preservation, heat insulation ceramsite due to internal porous, so has good insulation, the thermal conductivity of concrete prepared with it, as a general rule, be 0 ~ 0.8 W/(m, k), 1 ~ 2 times lower than the normal concrete. So, ceramsite architecture has good thermal environment.

The classification of the ceramsite

The classification of the ceramsite:

A. According to the raw material classification:

(1) the shale ceramsite ceramsite (3) and (2) clay gangue frac sand companies (4) (5) rubbish lytag ceramsite (6) the biological sludge ceramsite (7) river sediment ceramsite

2. According to the intensity of classification:

Gao Jiangtao (1) (2) super light ceramsite

3. According to the frac sand of classification:

(1) the average density of ceramsite (2) the density of lightweight ceramsite ceramsite (3), light density

4. According to the shape classification:

(1) the crushed stone form spherical ceramsite ceramsite (2) the circle (3) the cylindrical ceramsite

5. According to the performance of classification:

(1) high performance ceramsite (2) general performance ceramsite

Hydraulic fracturing is to use the ground high pressure pump

Hydraulic fracturing is to use the ground high pressure pump, through the wellbore to squeeze oil layer with high viscosity of frac sand fluid. When the injection rate of fracturing fluid exceeds the absorptive capacity of the reservoir, the reservoir is formed on a high pressure on bottom, when the pressure is more than near the bottom of a well fracture pressure of reservoir rocks, reservoir pressure will be open and cracks. Then, on and on to reservoir squeeze fracturing fluid, cracks will continue to expand inside the reservoir. To keep the pressure on cracks in the open state, then to the reservoir into with proppant carrying fluid (usually quartz sand), after carrying fluid into the cracks, cracks on the one hand, can make its way, on the other hand can have open cracks, so that it is not closed. Then into the displacement fluid, the carrying fluid of wellbore entirely replace into the cracks, prop up the cracks with quartz sand. Finally, the injection of high viscosity fluid will fracturing proppant degrade the discharge shaft, left one or more of the oil length, width and height of crack and reservoir and established a new fluid passage between the wellbore. After fracturing, the output of oil and gas Wells are generally increase substantially. It can be generated in various stages of organic origin on the subject of natural gas in free phase (about 50%), very little stored in dissolved state in kerogen, asphalt and oil. Natural gas are also present in the interlayer of siltstone, silty mudstone, argillaceous siltstone, sandstone formation even. After gas generated in the source rock in the nearby gathered themselves together, and show the typical shale gas on the patterns of in situ, with a greater difference between shale, tar sands, asphalt, etc. Different from conventional gas reservoir, shale is gas generation of source rocks, and gather and save gas reservoir and cap rock. As a result, high organic matter content of black shale, such as high carbon mudstone is often the best conditions for shale gas development

Fracturing proppant is a kind of ceramic particle product, has the very high fracturing strength

Fracturing proppant is a kind of ceramic particle product, has the very high fracturing frac sand, mainly used for oilfield downhole support, in order to increase the output of oil and gas, environmental protection products. This product use high quality bauxite and other raw materials, ceramic sintering and become, is a natural quartz sand, glass balls, metal balls substitute for middle and lower strength proppant, to produce more oil and gas has a good effect. Oil and natural gas deep well drilling, high closure pressure and low permeability ore deposit after fracturing treatment, split oil and gas layers, oil and gas from collecting in the crack formation of the channel. With ceramsite support material with high pressure solution into the strata filling in rock fractures, supporting crack because of the action of stress release and closed, so as to maintain a high diversion ability, make the oil and gas flow, increase production. Practice has proved that using ceramsite proppant fracturing of oil Wells can improve the production of 30-50%, still can prolong oil and gas well service life

Fracturing proppant can be widely used in deep well, high pressure oil and gas layer fracturing. By the high quality bauxite as main raw materials made of fine ground into powder, match with various additives, fracturing proppant practice, granulating, polishing, high temperature sintering, the product has high crushing strength, low density, good sphericity, high smoothness, diversion ability, etc. Supported by the oil exploration and development research institute of China langfang branch evaluation laboratory tests, each performance index of SY/T5108-2006 completely, / T6302-1997 standards, is at a leading level hydraulic fracturing (hydrofracturing method), also known as hydraulic fracturing method. An absolute stress measuring method. When measuring the first take a bedrock exposed drilling, sealed on both ends up and down with the packer, Pressure and injection liquid, until hole wall burst, and record the pressure changes over time, and using the mold or downhole television observation fracture azimuth. According to the record of pump pressure and the fracture azimuth, fracture pressure and close using the corresponding formula to calculate the stress size and direction of the landlord.

between the floors and bearing capacity

Ceramsite used frac sand floors, bedding, kitchen toilet cushion, moistureproof layer super light ceramsite cushion can be used to improve the heat preservation, heat insulation, sound insulation between the floors and bearing capacity; A flexible and convenient to take cover engineering of the pipeline layout and installation. Used for moistureproof layer also can prevent the floor ground return; Keep dry and floors, to protect all kinds of wooden floor, plastic board, ceramic floor deformation, not faded and moisture-proof, waterproof basement is quite good, and to reduce the building load, greatly reduce the cost of housing construction.frac sand companies cushion layer for square, stadium runway super light ceramsite used in overhead square, driveway, cushion, playground, runway, roof garden can reduce load, moisture, reduce the deformation coefficient, etc.

MaiDeTao cracked proppant grain has the very high fracturing strength

MaiDeTao cracked proppant, has the very high fracturing strength, mainly used for oilfield downhole support, in order to increase the output of oil and gas. Deep well drilling, oil and gas with proppant with high pressure solution into the formation rock fissure filling, the fracturing treatment of high closure, split oil and gas formation, supporting fissure is not closed due to the stress release, thus maintain high flow conductivity of oilfrac sand gas, increase the oil and gas production. Luoyang MaiDeTao grain co., LTD., use local advantageous high quality bauxite resources, after crushing, grinding, granulating and high temperature sintering and other manufacturing, high temperature, high fracturing proppant resistance, high strength, characteristics of diverting capacity, good service in oil and gas fracturing.

Shale gas, a state with a free or adsorption hiding in unconventional gas in shale and mudstone layer

Shale gas, a state with a free or adsorption hiding in unconventional gas in shale and mudstone layer, is becoming a stirring power in the world market. This is the international energy industry is called "game changer" gas, greatly changed the pattern of energy of the world. Especially occurs in unconventional gas in shale. Shale is dense rock, so it can also be classified as dense atmosphere. Industrial development success only for North America (mainly the United States). It began in the Appalachian basin of devonian system shale, as the dark brown or black, rich organic matter, but a lot of angry. Reservoir space is given priority to with cracks, and in the frac sand of adsorbed gas and water soluble gas occurrence, for low (negative) pressure, low saturation (30%), and thus provide sustainable. But in the fracture development zone, to obtain the higher yields underground explosions and fracturing renovation measures such as protection results. In the mid - 1990 - s has been expanded to Michigan and Illinois basin, the reservoir and expand to the carboniferous shale, output of 8.4 billion cubic meters. The resource of trillions of cubic meters. Sinopec in guizhou east, southern anhui, 7 5 appraisal well in northeast sichuan, including industrial air 2 Wells, optimizing the building fracturing proppant and huang ping blocks south. Cnooc in anhui and zhejiang and other regions to carry out the shale gas exploration in the early stage of the work. Extension of the oil in 3 Wells in yan 'an region of shaanxi province continental shale gas discovery. Zhonglian proposes ShouYang coal in shanxi qinshui basin, qinyuan and jincheng three areas favorable for shale gas. In November 2012, the national support for shale gas development and utilization of subsidy policy, regulations over the next three years the central fiscal subsidies for shale gas companies to give subsidies standard is 0.4 yuan/cubic meter. Subsidy standard come on stage will stimulate the shale gas frac sand companies demand, help industry development to speed up the progress.