Oil proppant performance requirements

Petroleum hydraulic fracturing proppant along with high-pressure solution is filled into the formation in rock fissures, cracks do not play a supporting closed due to stress release effect, thereby maintaining high conductivity, so that oil and gas flow, increase production.Oil proppant performance requirements:proppant conductivity sufficient compressive strength and wear resistance, can withstand strong pressure and friction during injection

Oil proppant performance requirements

Oil proppant performance requirements:proppant conductivity sufficient compressive strength and wear resistance, can withstand strong pressure and friction during injection, and effectively support the artificial cracks;the relative density of the proppant particles to be low, to facilitate pumped downhole;resin coated proppant particles under conditions of a temperature of 200 degrees, with the fracturing fluid and the reservoir fluid is not a chemical effect, acid solubility of the maximum permissible value should be less than 7%.
Petroleum hydraulic fracturing proppant along with high-pressure solution is filled into the formation in rock fissures, cracks do not play a supporting closed due to stress release effect, thereby maintaining high conductivity, so that oil and gas flow, increase production.

Economic benefit of fracturing proppant

Proppant economic benefit, as one of the fracturing proppant material, in the evaluation of fracturing economic benefit is always an expenditure. As specified in the fracturing payback time (for example, six months or a year) is fracturing design personnel must compare various proppant in the same closed pressure prices than [unit, um2.cm/ ($.T) or um2/ ($.M3)] and price than in the overall net gains (NPV value) and the effects of continuous time.

  If a certain type of a certain size of proppant conductivity in the provision of the repayment time can meet the requirements, the proppant can be used as one of the candidate's support agent.

By ceramic shape classification

Ceramic according to shape into gravel-type ceramic, spherical and cylindrical ceramic ceramic.
(1) gravel-shaped ceramic
Gravel-type ceramic Hydraulic Fracturing Proppants use natural mineral production, the first stone grinding, roasting, and then sifting; also available in natural and artificial light materials such as pumice, scoria, cinder, coal and other natural or calcined directly broken screen points derived.
(2) spherical ceramic
Spherical ceramic fracturing proppants is the use of the disc pelletizer. First raw flour, then add water pelletized into balls and then baking or curing together. At present, China's ceramic Most of this variety.
(3) a cylindrical ceramic
Cylindrical ceramic commonly used plastic extrusion. First made of mud, and then cut into a cylindrical shape. This ceramic is suitable for high plasticity clay like material, the yield is relatively low. If using a cylindrical blank brick back firing in the kiln cylinder roll into an oval shape.

Technical construction of oil proppant production safety and quality requirements

Petroleum proppant for clothes, skin corrosion strong, with liquid, must pay attention to safety during construction.
(1) pay attention to the preparation of oil proppant Wear PPE, bold but cautious, there is someone in charge of directing with liquid and well in advance of each lotion, once splashed acid in the body, the face you want to rinse with water, heavy timely sent to hospital for treatment.
(2) with a good oil proppant placed after the ferry to check the acid tanker valves, liquid inlet lid is on tight, can not have drip, drain phenomenon. Vehicle shall be marked with the danger mark at the wellsite shipped cracks pay attention to safety.
(3) the construction team on well after construction should be carefully checked before the wellhead valves are complete, whether the screws tightened to the construction until after passing the wellhead. Firstly wellhead natural gas fracking test the pipeline construction, leak-free mayonnaise, the only sour note to the well.
(4) When a large amount of acid, when a new well acidizing process to prepare the production command vehicle, ambulance wells.
(5) in strict accordance with the design and construction. The quality of acidizing is directly related to the post-acid effect. Therefore, we must ensure construction quality.
① conduct tests, before acidizing, a clear division of labor, unified command: Non-staff shall enter the high-fracking process zone.
② strict accordance with design requirements, acidizing.
③ guarantee the construction of the oil leak proppant not AIDS, given the amount of fluid play enough design.
④ for matrix acidizing pump pressure must not exceed the fracture pressure, ready to observe the construction of pump pressure, ranked the most changes.
⑤ take full, take prospective construction pressure, displacement, construction time, etc., well carefully recorded.
Late Management (four) Construction
After acidizing oil and gas wells, bad management, construction related to the effect of acidification. After acidizing wells shut as designed after timely open wells. If self-spray nozzle is installed drainage capacity requirements; generally when dropped O.1% residual acid concentrations, flowing well stop production of crude oil, non-flowing well from a string acidified turn pump pumping into production. Not since the spray is necessary and timely rehearsal is the key to prevent secondary precipitation acidification success. Oil and gas wells in the production process should be carefully recorded oil, casing fracturing fluid , daily production of oil and gas and other data, such as the timing of the measured fluid level wells. With drainage conditions on injection wells after acidizing according to design requirements to drain residual acid, restore water when the residual acid dropped when OI%; do not have drainage conditions, timely recovery water injection wells, the residual acid formation squeeze Deep. Carefully recorded during the injection pump fracturing proppant , casing pressure, oil fracturing sand , water injection daily, injected water quality data, timing measurements indicate absorption curve, the injection profile and so on.After acidification with a note for a smooth construction by water injection rate can not be too large, otherwise easily lead to the formation velocity sensitivity, acidification effect: To inject water quality water quality standard character sets, this plug formation injection wells, acidified to fail.

Proppant fracturing a direct impact on the quality of petroleum oil revenue

Maide fracking process oil well construction costs need to spend hundreds of thousands , even hundreds of million , the proportion of the cost of oil proppant production line in which the share is not large, however , the quality of the proppant fracturing effect plays a crucial post important role in the direct impact of net income of the production wells . Proppant production lines have sufficient compressive strength and resistance to abrasion , resistant to strong pressure and friction time of injection , and effectively support the artificial cracks. Oil fracturing proppant particles relative density is lower , easy pumped underground.

Now Maide petroleum proppant production lines are becoming increasingly popular at home and abroad , mainly due to superior product performance . New Chemical Materials weaker dependence on oil and gas resources of traditional petrochemical materials, cyclical obvious. Development of organic fluorine , silicone materials have certain advantages in resources ; technical barriers, industry concentration is high. High value-added products , industry profitability than traditional chemical . Petroleum proppant production compared to other devices , has strict performance requirements.

Oil fracturing proppant particle diameter wells to meet different design requirements , typically 0.4 ~ 0.8mm, roundness and sphericity of greater than 0.9 , and uniform particle surface is smooth , the haze value should be less than 100 degrees in order to obtain the highest possible high conductivity . The oil fracturing proppant particles at a temperature condition of 200 ° C , with the fracturing fluid and the reservoir fluid is not a chemical effect , the solubility of the acid should be less than the maximum allowable value of 7% .

Oil fracturing proppant ceramic sand production line bearing in terms of its role is mainly used to support but that the literal interpretation is used to bearing shaft is only part of its role in supporting its essence is able to bear radial load can be understood as it is requirements for fixed shaft axis is fixed to the shaft so that it can only achieve rotation and control its axial and radial movement of the motor is not working because the consequence is simply not possible movement of the shaft and the motor work in any direction bearing only rotation .

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.