Ecolab USA Inc.

Championx USA Inc.

Thomas O Painter

Kousik Kundu

Carter Martin Silvernail

Kim R Solomon

David Fouchard

Jennifer Stokes

Susan Amy Garner

Disclosed are compositions including up to 20 wt % of a paraffin inhibiting polymer and one or more non-polymeric glycol ether compounds, wherein the compositions are stable and flow at a temperature between about 0&#xb0; C. and &#x2212;40&#xb0; C., in many cases between about &#x2212;20&#xb0; C. and &#x2212;40&#xb0; C. The glycol ether compounds are non-polymeric, are liquids at 20&#xb0; C. (1 atm) and have boiling points over 100&#xb0; C., in many cases over 200&#xb0; C. The compositions are useful paraffin inhibitor concentrates for use in the petroleum industry wherein the concentrates are stable, pumpable, and pourable at temperatures as low as &#x2212;40&#xb0; C. and as high as 60&#xb0; C.

Temperature-stable paraffin inhibitor compositions

Disclosed are compositions including up to 20 wt % of a paraffin inhibiting polymer and a non-polymeric ester compound, wherein the compositions flow at a temperature between about 0&#xb0; C. and &#x2212;40&#xb0; C., or between about &#x2212;20&#xb0; C. and &#x2212;40&#xb0; C. The non-polymeric ester compounds are liquids at 20&#xb0; C. and atmospheric pressure, and have boiling points over 100&#xb0; C., in many cases over 200&#xb0; C. The compositions are useful to inhibit paraffin deposition during petroleum recovery, refining, storing, and transporting under field conditions, wherein the concentrates are pumpable and pourable, do not precipitate, and do not exhibit high pressure buildup inside enclosed containers at temperatures as low as &#x2212;40&#xb0; C. and as high as 60&#xb0; C.

Disclosed are paraffin inhibitors, paraffin suppressant compositions, and methods of making and using them. The paraffin inhibitors comprise polymers of a maleic moiety polymerized with at least two olefins having hydrocarbon chains of a different length from each other. When added to hydrocarbon media such as crude oils to form crude oil compositions, the paraffin inhibitors inhibit the precipitation of paraffin waxes in the crude oil compositions and exhibit reduced precipitation, gelling, and/or crystallization from the hydrocarbon media when the media are subjected to sustained low temperatures.

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Rosenberg, TX, United States of America

Thomas O Painter