sand with resin coating

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Product Description:

It is a kind of solid resin coated moulding sands or core sands by using the high quality natural silica sand as raw sand, thermoplastic phenolic resin, urotropin and enhancer as other materials. It is used in the oil and gas fracturing process to support, prevent flow back and increase the production.

How resin-coated sand comes?

As the proppant's flowing back appears in some oil and gas wells after the fracturing, it will negatively impact on fracturing result and the flowing back proppant will destroy the equipment in the well and above-ground. For this kind of well, we should take effectively control measures to prevent the flowing back and ensure the fracturing result

Feature of resin-coated sand

It has the feature of low density (lower than silica sand), easy-pumping, anti-corrosion and high temperature resistance. Besides, it provides good performance of oil penetrating and water blocking.

That's of great significance to continuous stable and high production of low permeability oilfield exploiting and development in the mid to late. But its crush rate will increase along with the rise of closure pressure.

That will narrow the crack width with the effect of resin elastic deformation, grain crushing and rearrangement. Then it will affect the porosity and permeability of the generated cracks

Raw materials of producing resin coated sand:

Silica sand, resin, assorted curing agent, urotropine, calcium, KH-550, epoxy resin curing agent and O-type toughening agent.

Performance of Resin-coated Sand:

1. Low density. Because of low density, the amount of proppant used in fracturing was decreased in the equal crack size. And it can also reduce the carrying fluid consumption to reduce fracturing cost.

2. Good roundness & sphericity.

3. High crush resistance.

4. Low turbidity.

5. Low acid solubility. After resin coated, the sand acid resistance, alkali resistance and salt resistance are enhanced.

6. Good long-term conductivity. The RCS wraps most of the broken sand crushed under high closure pressure, even if the sand is crushed, the debris and fine powder are wrapped in a resin shell to avoid their migration, providing a good conductivity.

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Q:What is the difference between API crude oil inventories and EIA crude oil inventories
EIA crude oil inventory data from the U.S. Energy Information Administration (EIA) issued regularly every Wednesday, the data were measured weekly American company's commercial crude oil inventories, while the number of stocks can influence the impact on inflation and other economic influence of refined oil price.
Q:What is the difference between foreign exchange and crude oil?
Foreign exchange transactions refer to the way in which a foreign currency is bought in one currency and sold in another currency. In the international market, the exchange rate of various currencies fluctuates frequently, and it is traded in the form of currency.
Q:Why international crude oil to use barrels as a unit?
Barrels and two tons of crude oil is our common unit of quantity. OPEC and the western countries. As the number of units of crude oil is usually expressed in barrels, and Chinese and Russia and other countries are commonly used metric units as the quantity of crude oil. The conversion between tons and barrels: 1 ton equivalent to about 7 barrels, if the oil is lighter (dilute) is equivalent to about 1 tons, or 7.2 barrels of 7.3 barrels. Despite the conversion relation between fixed tons and tons of barrels, but because the quality is, the barrel is a unit of volume, and the variation range of the density of crude oil in large transactions such as different units of calculation, the results are different.
Q:How much is a barrel of crude oil? Equivalent to the domestic RMB quotation
Us] 1 gallon =3.785 liters [British] 1 gallon =4.546 liters, Europe and other countries of the gas station, generally "gallons" to do, and China the gas station is "L" valuation. How much is a barrel of crude oil? As already known, a barrel of crude oil is about 159 liters. At present, the domestic market price of gasoline 6.20 yuan / liter, so a barrel of gasoline is $6.20 / L X159 liter =985.8 yuan /. 1, the exchange rate is equal to the weighted average of the exchange rate and the exchange rate.
Q:Asphalt and crude oil trend?
Is a derivative of spot crude oil, a residue left after oil refining, mostly used for paving or building. As the country is now increasing the intensity of crude oil control, so a lot of transactions to launch spot asphalt products to replace crude oil. Spot asphalt prices are two times the price of crude oil, trading rules and spot crude oil is the same.1, 20 hours trading. Trading opportunities and do not delay during the day to work, as usual in the evening to finance. Monday morning 8:00 to 4:00 on Saturday morning for trading time, crude oil 20 hours trading mechanism.
Q:How much is a barrel of crude oil?
Suppose a crude oil density of 0.99 kg / liter, then the weight of a barrel of crude oil is 158.98x0.99=157.3902 kgFrom the actual situation in 2005, the international crude oil market does not appear the imbalance between supply and demand. In March 2005, the crude oil market demand is the basic monthly decline, but the use of speculative capital OPEC surplus production capacity decline caused by the market for crude oil supply concerns, wantonly long international crude oil futures, high oil prices led to.2005 in December 28th, Xinhua News Agency reported in Iran oil minister suggested that the organization of Petroleum Exporting Countries (OPEC) into production, the comments lead to 28, the international market of crude oil futures prices rose sharply. The New York Mercantile Exchange in February this year, light sweet crude oil futures prices for delivery rose 1.66 dollars a barrel, closing price rose to $59.82; London's International Petroleum Exchange, Beihai Brent crude oil futures prices in February rose to $1.35 a barrel. To close at $57.64.
Q:International crude oil trading is generally how much
The New York Stock Exchange margin is generally about 1:20, the standard hand to take up the margin is about $5000, a small $2500, CFD trading margin is generally about 1:100
Q:The difference between crude oil and oil
Oil: natural gas and artificial petroleum and its products are collectively referred to as the oil
Q:Excuse me, what is the meaning of spot oil lock
Lock is in the original position of the case, the reverse operation of the same number of hands. For example, there are now more than 5 positions in the account of a single hand, then the lock is to do the corresponding single empty single hand, so that the profit and loss account will not increase or decrease with the price fluctuations of the 5.
Q:When is the crude oil trading time
Spot crude oil is the time and the international market, the spot crude oil time is 24 hours offer, a total of 22 hours, there are 2 hours settlement time.

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