Quantitative comprehensive evaluation method for oil stabilizing and water controlling effects of horizontal well

The invention relates to an oil and gas field development technology, and discloses a quantitative comprehensive evaluation method for oil stabilizing and water controlling effects of a horizontal well. The method comprises the steps that whether a water control target well is a production old well or a new well is judged; according to old well or new well production, relevant working condition parameters of production allocation or adjacent wells with the same oil column height and the same position before and after the water control process is applied are collected; relevant parameters required by single well water control economic benefit evaluation are collected; the influence of water control process application on oil production and water production is evaluated and the water control effect is evaluated by comparing the oil production index per meter with the water content and adopting index parameters such as the water control validity period, the oil increment and the water production variation; singl