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 meaning of crude oil inside the lock?
Suocang is holding more than one and the same number of empty single, such a role is to avoid excessive volatility in the market when the wrong risk, if the market is up more than a single profit
Q:Crude oil prices, refined oil prices have also been reduced, why the price of oil does not fall?
We also hope that the advantages of lubricating oil has been on the rise, but now the season is coming, we have to face what?
Q:What is the relationship between the price of gold and the price of crude oil
The ups and downs of international crude oil prices always go hand in hand with the rise and fall of gold prices, the two have a surprisingly similar.From the historical data, in the past 30 years, oil prices and gold prices showed a positive correlation of about 80%. The reason is that crude oil, as an important member of international commodities, has a significant impact on the development of the world economy. Fluctuations in oil prices directly reflect the current economic situation. And gold as a hedging tool, its price is closely related to people's expectations of economic conditions. In general, rising oil prices, inflation will follow the economic development, increased uncertainty, the economy is expected to decline, so have to buy gold to hedge against inflation, the price of gold rose. Conversely, the decline in oil prices, indicating that the economy is running well, people are better for the economy is expected to be higher, it will shift from gold to other investment items such as the U.S. dollar, the price of gold will gradually decline.
Q:Why is Brent crude more expensive than the United States?
Brent crude oil is more expensive than the United States is the main reason for the cost and the United States on the price of crude oil, a common role in the policy, in addition, due to the tense situation in the Middle East, crude oil supply is tight, is also one of the reasons.
Q:How to understand the change of U.S. EIA crude oil inventories, please enlighten prawns!
The crude oil inventory is down 4 million 960 thousand barrels, significantly higher than the expected 1 million 800 thousand barrels, making the U.S. crude oil prices have a larger increase
Q:Spot crude oil is generally the most prevailing in a day?
Spot trading times should wait time: 24 points to the morning for the U.S. disc afternoon, generally at this time has been out of the larger market, this time for technical adjustments to the front of the market, so in the day of the spot trading times, belong to should wait time.Spot crude oil trading market is large time periods: at noon 14-18 points for the European morning market, this period will be released along with some influence on European monetary data; at 20 --24 for the European market and American market in the morning afternoon, this time is for fluctuations in the largest, is the capital of the amount and the maximum number of participants in the session, the best time of the transaction is also spot crude oil trading in time, so investors can enjoy the fun of investment work by night.
Q:When did the crude oil start?
Internationally, as early as the 70s and 80s of last century, because of the instability in the Middle East situation, because of soaring crude oil prices, it has been a big reputation in the investment of crude oil. The current ISIS is also expected to lead a very good investment opportunities.
Q:The U.S. crude oil futures is not a lot of varieties?
Domestic refined oil prices are indeed suffered five consecutive decline5 U.S. crude oil is currently the most active contract in October, the United States crude oil 106 (U.S.) crude oil index is a software vendor in accordance with a certain formula prepared by the virtual contract, non tradable, the main purpose is to contain all the data in the month of 01-127) there is no domestic crude oil futures varieties, if you want to trade in U.S. crude oil, please consult the regular Futures Company to open an overseas trading account, trading U.S. crude oil
Q:What is the prospect of investing in spot crude oil?
Spot crude oil investment first of all it is the implementation of the T+0 trading system, can do more than once a day. The use of margin trading, leverage, improve the utilization of funds for investors; with the rise and fall of the two-way trading mechanism to buy or sell, regardless of the price rise or fall, there are investment opportunities. Set the dual advantages of stock and futures trading, but also overcome the shortcomings of the two. The biggest advantage is that the risk is smaller, easy to grasp the market, more opportunities for profit, the most suitable for the pursuit of prudent style investors.
Q:How many kilos per barrel
Because the density of oil produced varies from place to place, the weight of a barrel of oil is not the same. Between 128-142 kg.

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