E3S Web Conf.
Volume 352, 20227th International Conference on Energy Science and Applied Technology (ESAT 2022)
|Number of page(s)||4|
|Section||Fossil Energy & Geological Engineering|
|Published online||27 June 2022|
Effect of pressure systems on the development effectiveness of 125m polymer blocks
Geological Research Institute of the Fourth Oil Production Plant of Daqing Oilfield Co., LTD., Daqing, China
Since the industrial polymer drive development in the oilfield, eight blocks have experienced polydrive development successively. With the extension of the development time, the extraction well spacing of polymer drive blocks has been reduced. After the reduction of well spacing, the influence of whether an effective pressure system can be established on the development effect gradually increases, and the minimum value of pressure space rises from about 0.5 MPa to 1.5 MPa, and the value of improved recovery rate is nearly 3 percentage points less with the same subsurface pore volume PV number injected. In this paper, we study the pressure system to find out the influence of pressure system on the development effect of 125m polymer block, and take adjustment measures to improve the development effect of poly-drive.
Key words: Polymer drive / 125m well spacing / pressure system
© The Authors, published by EDP Sciences, 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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