Frontal Drive Production Mechanisms - A New Method for Calculating the Displacing Fluid Saturation at Breakthrough
- L.F. Stutzman (Northwestern Technological Institute) | George Thodos (Northwestern Technological Institute)
- Document ID
- Society of Petroleum Engineers
- Journal of Petroleum Technology
- Publication Date
- April 1957
- Document Type
- Journal Paper
- 67 - 69
- 1957. Original copyright American Institute of Mining, Metallurgical, and Petroleum Engineers, Inc. Copyright has expired.
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A new graphical method, which is a modification of that proposed by Buckley and Leverett, is presented for the determination of the displacing fluid saturation at breakthrough for frontal drive mechanisms. This method is applicable to all types of fluids, which may be either soluble or insoluble in the oil at reservoir and injection conditions. This adaptation has unique advantages in handling problems in which either liquids or gases are the displacing fluids.
In the displacement of oil from a reservoir with water or gas injected into the formation or by the expansion of a gas cap, the determination of breakthrough or flood advance is important to define the initial and subordinate phases of the operation. Thus, the determination of the displacing fluid saturation at breakthrough is fundamental to the establishment of over-all reservoir production. Methods for analyzing this saturation and for calculating production rates have been previously reported. All of these methods utilize the rate equation for linear flow developed by Buckley and Leverett.
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