초록 ▼

The present invention controls the addition of a demulsifier through a petroleum stream by causing the petroleum stream to have a density gradient relating to its water content. The petroleum stream is sampled at two different locations along the density gradient to provide two sample streams. The w

The present invention controls the addition of a demulsifier through a petroleum stream by causing the petroleum stream to have a density gradient relating to its water content. The petroleum stream is sampled at two different locations along the density gradient to provide two sample streams. The watercut of each sample stream is determined and at least one single correspondent to the determination has provided. The demulsifier from a source is controlled in accordance with the watercut determinations and provided to the petroleum stream prior to the creation of the density gradient.

대표청구항 ▼

A method for controlling the addition of a demulsifier to a petroleum stream comprising the steps of: affecting the petroleum stream to establish a density gradient, sampling the petroleum stream at different points along the density gradient to provide two sample streams, determining the watercut o

A method for controlling the addition of a demulsifier to a petroleum stream comprising the steps of: affecting the petroleum stream to establish a density gradient, sampling the petroleum stream at different points along the density gradient to provide two sample streams, determining the watercut of each sample stream, providing at least one output signal corresponding to the determined watercuts, and providing the demulsifier from a source to the petroleum stream 2-upstream of the affecting of the petroleum stream in response to the output signal.