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:Crude oil inventory, there are two parameters.What do API and EIA refer to?What is the impact of the foreign exchange market on that parameter?Main reference API or EIA?
- API crude oil inventory is the American Petroleum Institute (API) crude oil inventory levels every Tuesday released the 1600 report of American crude oil, gasoline and distillate inventory, the data show that now how much oil inventory and products, so you can understand the supply will last long. And the data in accordance with the products and regions of the U.S. oil demand, monitoring U.S. crude oil production and imports of crude oil and refined oil
- Q:What is crude oil? How produced
- Crude oil extraction of oil from the bottom, usually at the wellhead through simple oil-water separation into oil and gas gathering and transportation pipelines, where oil production process did not enter the pipeline leak from oil or oil pipeline in oil and oil production area scattered on the ground (such as criminals from being oil pipeline punctured steal oil caused by the oil spill), usually called "falling oil"
- Q:What is the correlation between crude oil prices
- In the long run, when the dollar depreciates, crude oil prices rise; and when the dollar is strong, crude oil prices are down. Despite the recent economic downturn in the United States a few years ago, but the double deficit is still very serious, the dollar rebounded limited. If this situation continues for a long time, it is easy to shake the confidence of the world's confidence in the dollar, so the United States with another hard currency, crude oil to support the weak dollar, in order to ensure the sustainable development of the U.S. economy. In general, the dollar and crude oil prices are different from the change of the relationship, that is, the depreciation of the dollar will lead to rising oil prices, the appreciation of the dollar caused by falling oil prices.
- Q:Dollar index hit a ten month low on Friday after bottoming out to combat global commodity and stock markets fell. New York crude oil, copper and other commodities traded in the electronic disk today fell more than 1%, the Asia Pacific stock market is generally lower.This is a news on Sina today, but I have been unable to identify the specific relationship between the dollar and who can tell me, the best point in detail, thank you
- The falling dollar refers to the dollar for non US currencies fell, because more commodities denominated in dollars, so the commodity holders see dollars for other currencies fell, will require their asset losses increase transaction price has been up for $caused decline, so the dollar would lead to higher commodity prices, commodity the price rises, which means holding commodities will enhance the performance of listed companies, and jointly improve the value of the company's stock, share prices rose again, the dollar will lead to dollar holders eager to put his own dollars into shares, real estate and other assets, will aggravate the dollar denominated the stock and real estate prices,
- Q:What is the difference between foreign exchange and crude oil?
- The difference between foreign exchange and crude oil:1 different fundsForeign exchange margin trading funds are to be remitted to foreign funds by brokers, funds can be managed by the broker.Crude oil trading is funded by the domestic third party custodian bank, the funds are relatively safe.2 different pricesFluctuations in the price of foreign exchange every day, crude oil prices fluctuate.3 different varietiesForeign exchange is not conducive to the analysis of a variety of types of crude oil.4 different volumeThe daily volume of foreign exchange market is larger than that of crude oil.
- Q:Flush with crude oil futures and international gold trend
- No. If you want a software like this, I'll give you a good one
- Q:How to calculate the proportion of crude oil?
- This product has a margin of each specification, with 1 divided by the proportion of the proportion of the margin is the leverage. For example, I do Xinhua oil, margin ratio is 3% or 5%, leverage is 1/3%=33.3 times, 1/5%=20 times. Now that the national regulations are more than 50 times illegal, this should pay attention to.
- 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:What is the impact of unemployment on the crude oil?
- The United States is a complete consumer society, consumption is the biggest driving force of the economy, if a week because of unemployment and jobless increases, will seriously inhibit consumer confidence, the dollar is relatively bad, Dumbledore crude oil. The lower the data, indicating that the labor market improved, optimistic about the prospects for economic growth in favor of the dollar, bad crude oil
- Q:Spot crude oil in the country when it came out
- Spot crude oil investment in foreign countries in the last century, the first in the country began in February 14, 2014
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resin-coated sand
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