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 are the uses of crude oil?
Crude oil products can be divided into 6 categories: petroleum fuel, petroleum solvent and chemical raw materials, lubricants, paraffin, petroleum asphalt, petroleum coke and so on. Among them, the output of all kinds of fuel is the largest, close to 90% of the total output, all kinds of lubricants are the most, and the output is about 5%.Crude oil products have a very broad role and function in the social and economic development.Crude oil is a major supplier of energyCrude oil products, mainly refers to the production of crude oil refining gasoline, kerosene, diesel oil, heavy oil and natural gas, is the main supplier of major energy. The energy provided by crude oil is mainly used as fuel for automobiles, tractors, aircraft, ships, boilers, and a small amount of fuel for civilian use.
Q:What are the benchmark prices of international crude oil prices?
London's International Petroleum Exchange, Brent crude oil futures prices in Beihai, Beihai crude oil is also a kind of light oil, but the quality is lower than the New York mercantile exchange light sweet crude oil. Africa, the Middle East and Europe in the production of crude oil in the supply of western countries usually use Brent crude oil futures prices as the benchmark price. Commonly referred to as the "London market oil price" refers to the next month of delivery of the London International Petroleum Exchange, Beihai Brent crude oil futures prices. 3, Dubai crude oil prices Dubai crude oil is a light acidic crude oil, produced in Dubai. Dubai oil prices in general news reports less involved.
Q:Spot crude oil in the country when it came out
This year, the domestic market is just to rise, crude oil market volatility is more intense, more profitable space
Q:What is the recent international crude oil price
OPEC and the United States and Britain and other western countries crude oil unit is usually expressed in barrels, China and Russia and other countries are commonly used as a unit of crude oil quantities of tons. The conversion relationship between tons and barrels is: 1 tons is equivalent to about 7 barrels, if the oil is lighter (dilute), then the equivalent of about 7.2 tons or 7.3 barrels per barrel. Europe and the United States and other countries of the gas station, usually do with gallon units, China's gas stations are used to raise the valuation. 1 barrels = 158.98 liters =42 gallon. L U. S. gallon =3.785 liters, 1 imperial gallons = 4.546 liters. If the volume is converted to weight, and the density of crude oil. Assuming a crude oil density of 0.99 kg / L, then the weight of a barrel of crude oil is 158.98x0.99=157.3902 kg.
Q:EIA how to make a single spot crude oil
Therefore, how to determine the increase or decrease in crude oil inventory is particularly important! In general, I will judge or analyze the increase or decrease in crude oil inventories from a financial website. Make a rough estimate based on the previous and predicted values. Then make an approximate prediction by the morning API data! According to incomplete statistics, API data and EIA data with the probability of more than 80%! If the stock forecast value than the previous increase in value, generally can be judged to be a bad trend, otherwise it is a bullish trend. This can only be used to make a rough judgment! Let your heart have a general direction, but can not be used as a basis for single!
Q:What is the difference between spot and spot silver? Is crude oil better than silver
At present, most of the domestic spot market is a market maker trading model, also known as decentralized counter transactions.The most typical example is the gold, gold Daily reported a selling price of gold, and offer a collection of gold prices, gold price in accordance with the instant transaction, but the transaction is full.
Q:What is the prospect of investing in spot crude oil?
Secondly, the trading mechanism of spot crude oil is OTC mode, it is also referred to as the market maker system, this system can be said to have been very mature, but in China because of various reasons, the precious metals market before the emergence of some does not adapt, and some bad effects, but after two times. After two years of the rectification and the central bank, the Commission, inter ministerial joint meeting together, combined with your spot trading of metal under regulation, has become mature and stable, so from the trading mechanism, investment is the mature crude oil spot, no problem, but also is a new area of investment, the development of the market is still very small we know that, more new areas, more full of opportunities. Whether it is from the policy, environment, market or trading mechanism, spot crude oil investment is completely OK, but also recognized and supported by the state,
Q:What is the impact of unemployment on the crude oil?
For example, unemployment is similar to China's "minimum", under normal circumstances, if the increase in the number of unemployed people, then the U.S. economic downturn in the dollar fell, then the rise in crude oil. On the contrary, the number of unemployed, the dollar rose, crude oil fell.
Q:What is the average teacher in spot crude oil? What role
Analysis of the characteristics of moving average1, stable tracking trends. From the calculation we can see that the average line to a certain extent, the impact of contingency factors, so that we can see the general trend of the market.2, help to help fall. The average reflects the willingness to buy and sell on the market for a period of time, reflected in the chart, the average will have the meaning of support and pressure. This role, so that the market is likely to continue to develop.3, hysteresis. MA reflects the market for a period of time, when the market appears new changes, MA is often late to send a signal, resulting in a reduction in the actual profit space.
Q:What is crude oil? How produced
There is a certain amount of oil that cannot be recovered after the blowout and discharge. But now it is not used in this way. In addition, there are always some equipment in the oil, such as oil from the pump rod tubing, downhole oil flow to the wellhead equipment of pump, the equipment removed from underground when there are some oil will be scattered on the ground. Oil pipelines and oil wells wellhead equipment if run, run, drip, leak, there are some oil spills to the ground. Some criminals to steal oil, will control the flow of oil from the wellhead valve open or gathering pipeline punctured in the oil, will form a large number of crude oil. It is estimated that China's annual oil due to various reasons, about 100 thousand tons of oil, direct economic losses amounting to tens of millions of dollars.

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