Open AccessUse of methods for water suppression in the Severo-Orekhovskoe field
Author(s) -
V. F. Dyagilev,
T. V. Dyagileva
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/952/1/012027
Subject(s) - reagent , polymer , permeability (electromagnetism) , materials science , chemical engineering , geology , composite material , chemistry , membrane , organic chemistry , engineering , biochemistry
The subject of the study is the use of methods for water suppression in the productive stratum of the Severo-Orekhovskoe field. Based on the results’ analysis of the use of water suppression methods in the Western Siberia fields, recommendations were developed for the application of these methods in the Severo-Orekhovskoe field. It is shown that only technologies based on gel-and sediment-forming compositions having selective operation in layer-by-layer inhomogeneous stratum meet the conditions of productive strata of the Severo-Orekhovskoe field for all boundary parameters of application. During the study of the specifics of the field-geologic conditions of the Severo-Orekhovskoe field, effective water-shutoff compounds and technologies based on them were proposed: for strata A2-1, A1-3 - gel-forming compounds ACC-1, TSS-1, and “Geopan”. The reagents proposed for use for water suppression operations have a selective effect in layer-by-layer inhomogeneous permeability stratum and have a good filtration in low-permeability reservoirs. The efficiency of using the water suppression technology based on the thermotropic reagent “RV-3P-1” for high-temperature strata BV, JV. It is established that relatively low temperature conditions expand, on the one hand, the range of water suppression technologies. For technologies based on acrylamide polymers (injection of cross-linked polymer compounds, visco-elastic compounds, concentrated polymer compounds, Temposkrin polymer-gel system, etc.), the only limitation is the low permeability of productive strata AB1-2, AB1-3.