The article considers the spectrum of issues of development of deposits. We give a brief description of the structure: their geological structure, information about the properties of productive rocks (reservoirs). Considerable attention is paid to the technical means and technologies for the construction of wells in the operational and geological exploration area. The article touches upon the issues of field development, aspects of safety and environment.
The article presents a technology for building a water-shut screen in an oil well. The technology is based on drilling of radial channels within the water-encroached formation and following injection of water insulation composition in these channels. The proposed technology provides a durable screen of increased diameter and width. It contributes to a longer period of low watercut production in an oil well.
The article describes the technology for creating a mobile viscoelastic waterproof screen in the well that uncovers an oilwater reservoir. There are three stages with the following ratio of components, mass. %, based on the completion at the boundary of the oilwater contact. The first portion of the composition is 1 % (wt.) uniflock solution + 5 % (wt.) CuSO4. Then the second portion of the composition is pumped in the following ratio of components, mass. %: 1 % (wt.) uniflock solution + 10 % (wt.) CuSO4 + ETS-32 (volume ratio ETS-32:CuSO4 = 0,33:0,17). At the final stage is the injection of the third portion of the composition in the following ratio of components, mass. %: 2 % (wt.) uniflock solution + 10 % (wt.) CuSO4 + ETS-32 (volume ratio ETS-32:CuSO4 = 0,33:0,17).
The paper describes the method of isolation of bottom water inflow in oil wells. The method of isolation of inflow of formation water in the well, watered by water cone flowing into the near-wellbore area, is drilling is carried out from the main borehole of the stopped well into the productive formation with water intrusion into radial offshoots along the radiusbelow of the well perforation interval. They pump the waterproofing composition into referred radial offshoots with the creation of the waterproofing screen along the radius of the main wellbore. They leave the well for a period of reaction of composition injected under pressure and perform a subsequent well completion through existing perforations of the perforated interval.
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