Quantitative parameter adjustment and streamline adjustment method for oil and water wells

Abstract

The invention provides an oil-water well quantitative parameter-adjustment distribution-adjustment flow-adjustment line method. The oil-water well quantitative parameter-adjustment distribution-adjustment flow-adjustment line method comprises the steps of 1, building a relation expression of an oil-water well bottom pressure after parameter adjustment and distribution adjustment; 2, drawing a graph represented by the formula drawn in the step 1 in a rectangular coordinate system; 3, selecting points meeting adjustment requirements on the graph drawn in the step 2; 4, converting the points selected in the step 3 into adjustment of a related oil-water well. The oil-water well quantitative parameter-adjustment distribution-adjustment flow-adjustment line method has the advantages of being wide in application range, easy and feasible, and precise in adjustment and can be widely used for parameter-adjustment distribution-adjustment flow-adjustment line work of a water-drive reservoir complex in lithology, large in permeability difference, protruding in water logging and water channeling and imbalanced in exploitation and improve the oil reservoir development and management level.

Description

technical field [0001] The invention relates to the technical field of oilfield development, in particular to a method for quantitatively adjusting parameters and adjusting streamlines of oil-water wells. Background technique [0002] In the development of water flooding reservoirs, the adjustment of oil and water well parameters can effectively adjust the flow line between wells, inhibit water flooding and water channeling in the reservoir, and improve the recovery factor of the reservoir. [0003] In the initial stage of oilfield development, the overall water cut is low, the degree of water flooding is low, and the problem of water channeling is not obvious. Water injection into wells is usually only used as a means to maintain formation energy. Therefore, in the early stage of large oilfield development in history, more attention was paid to the adaptability of the layered well pattern, and less attention was paid to the adjustment of parameters, adjustment and flowline ...

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Problems solved by technology

However, this series of technical models also has certain problems: first, this model is developed based on medium-high permeability fault-block reservoirs, and has a good application effect in fault-block reservoirs and large-scale monolithic reservoirs with medium-high permeability. However, there is a problem of poor technical adaptability to other types of reservoirs. Second, although this model provides reference and guidance for successful adjustment models, it does not clearly define how to choose many models, and at the same time lacks quantitative guidance for specific adjustment parameters.

However, the technical threshold of this method is relatively high, and at the same time, there are many requirements for geological modeling, and many development workers cannot complete this work alone; at the same time, in the face of different well areas and well groups, different modeling and numerical simulation studies are required. Therefore, it takes a long time in practical application, and the popularity is still not high

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