resin-coated sand
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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.
- Q: I would like to ask how to look at the trend of spot crude oil?
- Spot crude oil market analysis chart first from the K line, Bollinger band, KDJ, MACD departure, and then combined with the 4 hour line line analysis, specific as follows:1, for the early entry into the investor, early learning is very important. Novice fry crude oil trading earnings every year to start 20 or no problem, the appropriate ability to practice judgment and decision-making. Grasp the skills of the market, and then pursue profit.
- Q: What is the recent international crude oil price? How much or how many kilograms of oil are there in a barrel?
- 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: Spot crude oil exchange legal formal several?
- It is safe to say that there are several legal spot crude oil. For example, north oil, Xiamen oil, in the bulk, Xinhua bulk, deep oil, these are government approvals, when the listing of state leaders have attended the ceremony. Are regular
- Q: From a year or so, nearly six months, nearly a month to analyze this
- In addition, the world's major oil consumption of individual economic cycle has an important impact on the price of crude oil. In the United States, for example, since 2003, along with the continued growth of the U.S. economy, the New York Mercantile Exchange WTI crude oil futures prices continued to shock higher. Crude oil prices have also risen sharply in several periods of rapid economic growth in the growth cycle. 2007 - 2008 U.S. economic growth cycle, into the downlink cycle. Although affected by short-term factors such as market expectations, the price of crude oil was ascribed to 145 dollars per barrel, but after the short-term shocks, the price of crude oil the final result of the economic cycle constraints, began to fall rapidly. 2008 WTI crude oil futures prices fell to $58.7 / barrel, down by 59.5%. 2009 global financial crisis stabilized, the U.S. economy gradually out of recession, crude oil prices will pick up. In 2009 the United States in the third quarter GDP quarter annualized rate of 2.8%, close to the pre crisis level of economic growth, the price of crude oil back to 70 to 80 dollars per barrel range, with basically the same as in 2007, the 3 quarter of second.
- Q: Crude oil seems to affect a lot of things, but it's not always clear what it means
- 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.Crude oil is one of the pillars of material industry
- Q: What is the meaning of short spot crude oil
- It is not empty, empty single crude oil but short, popular is simply to buy down the list. Short is the crude oil in the course of an operation mode of operation, that is, when the market is expected to decline in the future, will be sold in the hands of crude oil at current prices, such as the market after the fall to buy, get the profit margin.
- Q: What is the relationship between spot crude oil and spot silver?
- Crude oil prices are positively correlated with the price of silver, high oil prices will lead to rising inflation expectations, in a high inflation environment, investors will turn most of the money to the precious metals market
- Q: Spot crude oil several opening
- Every morning from 6 to second days in the morning at 4 am is a complete spot trading hours of crude oil for 22 hours. The time limit for the trading day of the trading day at 4:00--6:00 am.
- Q: How many liters of a barrel of crude oil
- U.S. 1 gallon =3.785 liters, 1 inch gallons = 4.546 liters. If the volume converted into weight, and the density of the crude oil. If a real estate of crude oil density of 0.99 kg / L, then a barrel weight is 158.98 * 0.99= 157.3902 kg
- Q: Spot crude oil has several investment?
- There are four main ways of International Investment: investment, investment, stock futures futures index of investment and investment in energy stocks; the main domestic spot and futures investment support investment in two ways, which, as the emerging domestic crude oil investment stock investment.
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resin-coated sand
- Ref Price:
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- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
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