resin-coated sand

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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 impact of unemployment on the crude oil?
Us weekly jobless claimsDivided into two categories, the first application and continuous application. In addition to the weekly figures, it will also be published around the moving average to reduce the number of fluctuations. The change in the number of people applying for unemployment benefits is one of the most important economic indicators on the market.
Q:Spot oil warehouse explosion is what meaning?
Spot oil warehouse explosion in two cases, one case refers to the futures customers open end positions, the futures exchange also owed money, namely: to account more than the total floating profit and loss account funds, namely the interests of customers is less than or equal to 0 due to market changes too fast, when investors in before additional deposit, deposit account can not maintain the original contract, this due to insufficient margin was forced open to the margin "zero", commonly known as "critical", "wearing" means to "ruin". Investment risks, the market need to be cautious!
Q:Fried spot crude oil, is the loss of more or earn more?
In fact, any investment is risky, but income coexists with the risk, investors should do is how to minimize the risk of obtaining the maximum profit, the main problem now should think about how to effectively restore the loss of investor losses than the several pens listed, to facilitate an antidote against the disease
Q:The U.S. crude oil futures is not a lot of varieties?
Crude oil futures mainly in the United States of New York crude oil and Brent in Europe of two varieties of crude oil2, the news is that more of the NYSE crude oil.
Q:The euro zone's ZEW index has an impact on crude oil
ZEW economic sentiment index is located in Germany Mannheim, a German company -- the European Economic Research Center (ZEW) per month to 350 financial experts investigation concluded on medium-term economic situation in Germany is expected to. He asked experts to assess the current environment and predict the future direction of the economy. Respondents only need to answer "optimistic", "pessimistic" or "unchanged", which makes the report easy to be statistical and easy to understand.
Q:What is the financial management of crude oil?
Spot crude oil is a kind of electronic disk investment varieties, refers to the specific quality of crude oil as a trading spot contract, does not involve the transaction of crude oil. Crude oil spot trading in China started late, but due to the recovery of the market economy, in recent years has been regarded as one of the most potential industries.
Q:What is the meaning of crude oil inside the lock?
Is to keep the lock lock the current profits or losses, for example, when there is a single space on your hand, but the market rose sharply, and you are not sure whether we will go up, so you can buy more than a single temporary, to avoid greater losses, the single lock is long short
Q:How to calculate the risk rate of crude oil
How to calculate the risk of spot crude oil? How much will the crude account be forced out? When the risk ratio is less than 70%, the system will be forced to close the margin account because of insufficient margin to hold all the contract varieties, so the majority of investors should pay special attention to
Q:Which futures varieties susceptible to crude oil prices?
There are fuel oil, because it is a direct downstream varieties of crude oil; rubber, because the main car tires and spare parts; copper, as with crude oil as a financial attribute.
Q:When did the crude oil trading time begin?
Crude oil trading time is in line with the international market, is the use of 24 hours offer, the transaction is a trading time of 22 hours, there are 2 hours of settlement time.

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