With the development of industrial modernization faster and faster, there are more and more different types of steel pipes, oil screen is one of them, the following and small make up together to understand the role of oil screen in the industry is what.

The oil screen is a special type of pipe which is installed at the bottom end of seamless or welded steel pipe in oil Wells, Wells and geothermal Wells to separate the mined liquid from the sand and gravel in the formation. Due to the basic structural characteristics of the strata involved, the size of the contact sand and gravel, and the viscosity of the mining liquid, the size and shape of the holes of the sieve tube are also different.

The screen pipe is a special steel pipe for oil and gas well cementing. It is used for sealing oil, gas and water layer. Protect the sidewall; Prevent blowout or wall collapse. According to the use, the screen is divided into surface screen, technical screen and oil layer screen. When drilling began, after drilling the upper surface soil layer, because these layers are soft and prone to collapse, in order to prevent blowout and ensure the smooth drilling, a layer of surface screen pipe is needed. The depth of the surface screen varies from instant noodles to several hundred, each more than 1,000 meters, but most Wells do not exceed 200 meters. When the bottom is solid and the pressure of oil, gas and water layer is sure, the drilling cycle is short, the surface screen can not be.

After surface screen down to continue drilling, also will meet all kinds of complicated situations, such as lost circulation, borehole collapse, high pressure oil, gas, water, etc., after the using condition of mud, and other various measures, if still invalid, before drilling complex strata, requires the sieve tube such as technology, to the isolation is difficult to control complex stratum, ensure the smooth progress of drilling work, drilling depth in formation is not too complicated to live is not big, general can fit technology screen; But for exploratory Wells, there should be a backup technical screen.

The oil screen is because the primary effect of this pipe fitting in an oil well is to pick out the pebbles in the oil, perhaps gravel, to ensure that the oil is as pure as possible. So what are the specific effects of the oil test tube?

1. oil field regeneration: old well as oil is right or wrong renewable resources so we should not only learn to conserve what is more important to research skills, make its can be used again, now the world's major oil fields have appropriate amount has now entered the oil production of later period, the quantity of oil has been cut, in order to explore the potential of old well no matter which country petroleum profession are trying to research the quantity of oil processing and fewer questions, some communication owners some sidetracking horizontal well, and to extend other fixation of oil scale, regardless of whether to exchange owner choose common way is: play "horizontal" side, the screen is inseparable from the oil well.

2. Land, two new oil Wells: due to the ground and is not the same as the structure and the distribution of oil layers can perhaps to cut down on the number of drilling eye, cut about the pollution of the ground, petroleum profession most now is to drill horizontal Wells, horizontal Wells can cut down a lot of shaft mouth, but in the drilling of cent is inevitable to use oil screen.

3. Offshore oil drilling: The rise of large-scale oil drilling in China and even in Shanghai, as well as the booming development of geothermal Wells, salt Wells and deep-water Wells, all require the support of increasingly high-quality oil screens.

4. Sand control of pumping pipe: Since the primary effect of the oil screen is to pick out the gravel from the oil, the combination of the demand and the oil screen may be used in the casing and pumping pipe to ensure the purity of the oil, otherwise the later purification process will become more complicated.