In addition to a small amount of tungsten heating material for high temperature furnace, heater tubes and composite reinforcement endures, most of them are used for the Resin coated ceramic proppant production of whiteTungsten wireFilament incandescent lamps and halogen and gas discharge lamp electrodes. Cathode gas discharge lamp for use as tungsten or tungsten rods, in order to reduce its electron work function, shall be added
0.5-3% thorium, tungsten thorium called wire. Since Thorium is a radioactive element, pollute the environment, it made a useful cerium tungsten thorium instead of cerium cerium tungsten wire or rod. But ceriumEvaporation rate, so that a tungsten filament or tungsten, cerium Ce can be used for small power pole gas discharge lamp.Once the use of tungsten at high temperature recrystallization becomes very brittle in case of a shock or vibration can easily break. In some of the requirements of high reliability electric light Ultra lightweight proppant in order to prevent breakage of the filament, often in the tungsten doped with 3 to 5% of rhenium, tungsten, rhenium wire is called, it can make the tungsten brittle transition temperature down to the extension at room temperature
Frac proppant is a granular product with high fracturing intensity, mainly for oil well supported in order to increase oil and gas production, an environmentally friendly product.
2015年5月29日星期五
2015年5月25日星期一
Ceramic proppant
In effect the success of resin coated sand proppant , the effective length depends primarily on the quality of the proppant. The role of fracturing proppant that produce hydraulic fracture filling, so that it becomes closed again, and the ability to form a crack diversion has the ability to get the stream. Fracture conductivity is the ability to transport crack spread reservoir fluids, and propped fracture permeability and fracture proppant closure wide representation of the product is generally believed that the type of proppant in the fracture and the physical properties of distribution and fracture closure pressure is the main factor controlling the fracture conductivity. Thus, the physical properties of palm Resin coated ceramic proppant and fracture conductivity affected by many factors, there is a reasonable choice in favor proppant fracturing fluid and conducive to fracturing proppant material made more precise requirements.
2015年5月21日星期四
Hydraulic fracturing
When using ground hydraulic ceramic proppants technology is high-pressure pump , the viscous liquid absorption capacity greatly exceeds the underlying displacement injection wells, in the bottom suffocating pressure, when the pressure is greater than the near wellbore formation rock to stress and intensity of anti- inflation in the bottom near the bottom of cracks. To inject the liquid with sand carrying proppant fracture extends forwardly and filled with proppant in the fracture closure shut the proppant , thereby forming a certain geometry and conductivity in the vicinity of the bottom of the bottom sand filling cracks , resin coated sand proppant making wells to increase production , by injection purposes . Hydraulic fracture stimulation , by injection principle is near the bottom of the bottom of the formation and fluid penetration resistance of the fluid flow state , is the original radial flow throttling losses , greatly reducing the energy consumption, thus oil and gas wells production or injection wells will be greatly improved injection rate .
2015年5月17日星期日
Viscoelastic surfactant fracturing fluid
To reduce the fracturing process proppant sand manufacturers eservoir and propped fracture injury , developed a viscoelastic surfactant fracturing fluids and using a capillary rheometer test equipment, the performance of fracturing fluid were Research . Laboratory evaluation results show that the ceramic proppants under conditions of 100 ℃ and 170s-1 , and after 1h shear viscosity in 130mPa · s or more ; 120 ℃ under the conditions of 170s-1 and , after 1h shear viscosity of 50mPa · s or more ; with the extension of the shearing time , a small change in viscosity of the fracturing fluid ; with decreasing temperature , the viscosity of the fracturing fluid has good recovery . The test results show that the high viscosity fracturing fluid and low cost , formation damage fracturing fluid lower than about 50 %. Field test confirmed that friction viscoelastic surfactant fracturing fluid equivalent to 25 % to 30% water friction , and friction is lower than the fracturing fluid 1MPa/1000m, 2口fracture stimulation of oil wells 5600t. Use the fracturing liquid fracturing , can effectively reduce the fracturing fluid to the reservoir and propped fracture damage, while improving the well stimulation effect .
2015年5月13日星期三
Structure performance of the proppant
Structure performance of the natural gas fracking Proppant for a certain particle size and size distribution of natural sand probable high strength ceramic particles. Ceramsite branch
Support agent with aluminum bauxite as raw material, through the powder granulating, sintering, with high temperature resistant, resistant to high Pressure, corrosion resistance, high strength, high conductivity, low density, breakage etc, to use The most widely. In the sand and ceramsite surface coating resin, to further improve the proppant sand manufacturers Degree and diversion performance.
2015年5月9日星期六
The ends off the sand fracturing technology
With the exploitation of oil and gas fields crossover technology development and integrated use of a variety of process technology, the scope of application of fracturing proppant technology is no longer confined to low-permeability formations, high-permeability formations have begun to use this technology to improve development results. When oil well fracking technology used in high-permeability formations, hoping to form a short, wide cracks and crack control as much as possible within the scope of the oil and gas layers. In order to meet the requirements of this particular foreign mid-80s in the 20th century developed the ends off the sand natural gas fracking technology, and soon applied to the site, currently also carried out research in this area, and has made great progress .
2015年5月5日星期二
After the extraction of oil
proppant sand manufacturers and fracturing proppant wells over time, high-low permeability deposit after closing pressure fracturing treatment, the rock cracked petroleum, oil and gas from the cracks in the channel formed by the pooled out. Ceramic proppant material along with high-pressure solution is filled into the formation of cracks in the rock, the play not because of stress release propped fracture and closed, thereby maintaining high conductivity, so that the oil and gas flow, increase production. Ceramic proppant is widely used in the exploitation of oil and gas, to increase oil and gas production, and does not support the ground subsidence
2015年5月1日星期五
Petroleum proppant ( ceramic sand )
Grains of sand proppant has a Hydraulic Fracturing Proppants temperature , high pressure , corrosion resistance, high strength, high conductivity , low density, low breakage rate and other characteristics, mainly for deep low-permeability reservoirs , currently the most widely used at home and abroad . By species classification can be divided into: high sand proppant ---- no pressure consolidation strength , consolidation fast, good permeability, low density ; fracturing proppant ---- Anti spit back a high pressure consolidation strength , crushing low permeability, low density ; coated proppant ---- remarkable resilience and long-term use at proppant sand manufacturers temperatures below 232 ℃ formation ; quartz sand proppant ---- acid low solubility for fracturing and acidizing support , a higher sphericity and conductivity . Divided by the anti- crushing strength : 52Mpa (7500psi), 69Mpa (10000psi), 86Mpa (12500psi) three series. Divided by the volume density : low density, medium density, high density
Divided according to specifications :12- 20 mesh ,16- 20 mesh ,16- 30 mesh ,20- 40 mesh ,30- 50 mesh ,40- 60 mesh ,40- 70 mesh ,70- 100 mesh , etc. , in order to meet domestic to meet the needs of domestic and international oil and gas wells , ITC company is vigorously developed, developing other different intensity and different specifications for customers to choose.
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