Prediction method for development index of sub-structure based on liquid volume in water flooding oilfield

Abstract

Since the entry into the ultra-high water cut period, the development status of the well pattern of the water injection system of each group has been different, and new development indicators have appeared. Waterflooding development faces difficulties in reserves transfer, residual oil dispersion, large reservoir yields, and low storage and mining rates, making development and adjustment increasingly difficult. How to ensure the sustainable development of waterflooding without new recoverable reserves is an urgent research topic. Therefore, according to the characteristics of geological deposits and the development of water injection, this paper has obtained the evaluation method of recoverable reserves of stratum, the method of studying the change of indicators at all levels, and the reasonable method of future prediction. Production scale. The factors affecting the development of water flooding are transformed into indicators of water flooding development [1]. Determine the change rules of development indicators after system analysis, reasonably determine the development indicators of water flooding, clarify the direction of future water flooding adjustment, improve scientific and accurate prediction of water level, and guide water flooding to provide a solid foundation for determining annual plans. Studying the characteristics, potentials and laws of oilfield development is of great significance for guiding the adjustment of oilfield development and improving the efficiency of oilfield development. In the process of guiding waterflooding planning, reasonable objectives should be determined to reduce inefficient cycle production, avoid inefficient and inefficient development, and improve oilfield development efficiency.Since the entry into the ultra-high water cut period, the development status of the well pattern of the water injection system of each group has been different, and new development indicators have appeared. Waterflooding development faces difficulties in reserves transfer, residual oil dispersion, large reservoir yields, and low storage and mining rates, making development and adjustment increasingly difficult. How to ensure the sustainable development of waterflooding without new recoverable reserves is an urgent research topic. Therefore, according to the characteristics of geological deposits and the development of water injection, this paper has obtained the evaluation method of recoverable reserves of stratum, the method of studying the change of indicators at all levels, and the reasonable method of future prediction. Production scale. The factors affecting the development of water flooding are transformed into indicators of water flooding development [1]. Determine the change rules of development i...