Progressing Cavity Pumps In Light Oil

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The Problem

Progressing Cavity Pumps are engineered for large variations in gravity; however light oil does have its unique concerns. Light oil typically has high percentages of BTX (Benzen, Toluene, Xylene). The molecular structure of BTX enable it to attack or attach to the elastomer, causing aggressive swelling and softening. This reaction is mainly due to the high chemical reactive nature of the base double bonded cyclic ring of benzene. Light oil is also usually found at deeper, warmer reservoirs causing the elastomer to break down at a faster rate.

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