Cement umbrella is like an inverted handleless umbrella, which consists of canvas and a few pieces of spring pieces. Canvas is made of funnel-shaped fixed in the spring,and the cement umbrella is also made of steel sheet overlap.
Cement umbrella is an annex to cementing construction and is generally suitable for use in the backlash cement process and graded cementing to control the position of the cement section. It is used to support the cement in the ring, to prevent or reduce the loss of cement slurry. The type is suitable for use within the casing and the use of naked eye, encountered irregular sections and shrink diameter section, you can freely stretch and pass.
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