Base sediment and water.

Source: ISO 16530-1:2017, Petroleum and natural gas industries – Well integrity – Part 1: Life cycle governance, First Edition, March 2017. Global Standards


“BS&W” means basic sediment and water which is that portion of fluids and/or solids that settle in the bottom of storage tanks and/or treating vessels and is unsaleable to the first purchaser in its present form. BS&W usually consists of water, paraffin, sand, scale, rust, and other sediments.

Source: Corporation Commission, Oil and Gas Conservation, Oklahoma Administrative Code 165:10, February 2013. Regulations



“BS&W” means basic sediments and water.

Source: Oil and Gas, New Mexico Administrative Code Title 19, Chapter 15, January 2013. Regulations

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