![]() Volume of slug required for required length of dry pipe can be calculated by this following equations: Oilfield Unit Generally, slug is pumped to push mud down approximate 200 ft and slug volume can be calculated by applying a concept of U-tube (See Figure below). Slug weight should be about 11.5 to 12 PPG. For example, current mud weight is 10 PPG. Normally, 1.5 to 2 PPG over current mud weight is a rule of thumb to decide how much weight of slug should be. This article will demonstrate you how to calculate how many barrel of volume slug required for desired light of dry pipe. Slug is used when pipe became wet while pulling out of hole. ![]() What is slug? Slug: It is heavy mud which is used to push lighter mud weight down before pulling drill pipe out of hole.
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