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: What are the factors that affect the spot crude oil?
- Factors affecting the price of crude oil are the following:1, the relationship between supply and demand (do not explain too much),2, macroeconomic policies and regulations, inflation, currency exchange rate: mainly the U.S. dollar, interest rates, etc.
- Q: Crude oil investment fly it?
- As an investor, investment needs to be done in two ways:First, consider whether you have the ability to invest. Capital, technology and experience are the three essential elements of investment. After the funds are in place, technology and experience will take time and practice slowly accumulate. Do not want to novice detours, conditional, can be appropriate to consult a professional, ask them to help escort, to avoid accidentally early;
- Q: What is the difference between oil and oil
- 1 valuation methods, futures trading in commodity markets in London, Brent crude oil as a kind of Beihai crude oil, ICE Brent, in the world, except the part of the Middle East and the Far East oil accident, most areas of crude oil, such as Beihai, Africa, Latin America, Canada, and parts of the Middle East and the Far East to the valuation of European exports of crude oil when are DTD Brent valuation.
- Q: Crude oil trading on Saturday Sunday can not spend money
- Spot crude oil:1, a variety of market conditions and technical analysis, to determine the weight, decided to open positions, plus lighten up, do not arbitrarily and frequent transactions.2, do not blindly pursue the integer price, in order to prevent missed opportunities, and resistance or support in the integer price, the transaction is relatively difficult to achieve.3, can not rely on the mentality, and should develop a trading plan for each operation, do a good job in the market, technical analysis, to grasp the point of entry and exit, to avoid blindly follow the trend and credulity.4, with a stable mood, open-minded attitude, rational analysis, scientific control positions, as far as possible to reduce risk and improve returns. The control positions, to abstain from greed and gambling.5, if you stare at the disk time is limited, it is not suitable for short-term operation. Midline operation, in particular, should take advantage of the light positions, decisive stop, reverse the signal appears profitable. In order to avoid the long-term operation of margin trading, explosion-proof silo risk and missed profit and loss prevention, stop time.6, spot crude oil trading time: trading time is based on Beijing time, Monday morning 7:00 to 4:00 am on Saturday.
- Q: What is the meaning of crude stop loss
- If investors can do this, the probability of making money is still large, sadly because of greed, most people are difficult to do, so most people lose money, the fundamental reason lies in this. This is also a summary of the majority of investor losses followed me.
- 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: Spot crude oil prices and what factors?
- World economic developmentThe growth of the global economy will affect the price of oil demand by changing the oil market, a strong positive correlation between economic growth and oil demand growth, the change trend of oil price change trend with the United States GDPIn line with the global economic situation, oil prices also play a crucial role in the change in oil prices. The global economic crisis in 2008 led to a sharp drop in oil prices, and with the recovery of the global economy, oil pricesRising. The global economy is relatively bad, people will increase the investment in the industry, the oil resources will increase demand, at the same time, and constantly improve the quality of life of people, cars and household appliances will also increase the popularity ofThe consumption of oil, thus increasing the demand for oil, causing oil prices to rise. Similarly, when the economy is depressed, the demand for oil is reduced, so that the decline in oil prices.
- Q: What are the effects of non farm oil?
- The U.S. economy is positive bullish for the dollar is negative for crude oil; the non-agricultural economy is negative for the dollar is empty the favorable oil; basically non-agricultural data for crude oil in the stimulus amplitude above 100 points, the individual will be unilateral volatility 400. So if the investor's funds are not very large, it is recommended not to order the data out before, such as market stability and then re approach. Do not chase sell.
- Q: Spot crude oil is generally the most prevailing in a day?
- Although the spot crude oil can be traded for 24 hours, but the market is divided into light and intense time, below I would like to introduce:Light time: as early as 6-14 due to the Asian market force is small, so the volatility is smaller, and more for the adjustment and correction; 18-20 in the evening at noon for the rest of Europe and the Americas in the morning, so the market is also a day of trading time in the spot light crude oil.
- Q: Crude oil rose, gold and silver will rise? What's the relationship between them?
- Relationship between oil price and gold price:Gold is a hedge against inflation, and rising oil prices mean inflation will follow, and the uncertainty of economic growth will increase. This time the role of hedge gold hedge will be favored by people. There is a positive correlation between gold and crude oil, crude oil prices rise indicates that gold prices have to rise, the decline in crude oil prices indicates that gold prices will fall. From the medium and long term gold and crude oil volatility trend is basically the same, but the magnitude of the difference, in general, the price of gold and crude oil prices are positively related. The relationship between gold price and crude oil price.
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resin-coated sand
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