Water-controlling and oil-gathering exploitation method

Abstract

The invention discloses a water-controlling and oil-gathering exploitation method, and belongs to the field of oil exploitation. Comprising the following steps: 1) after a well is stopped for a period of time, producing low liquid quantity in a high liquid production speed production mode, and then stopping the well to start a next period; (2) recording the time of the well shut-in stage, the time of the well opening and liquid production stage, the working system of the liquid production stage, the water content of the tested produced liquid and the liquid amount of the produced liquid each time of the previous period; (3) carrying out the production test of the next period by changing the combination of the time of the well closing stage, the time of the well opening liquid production stage and the working system of the liquid production stage and recording the water content of the produced liquid and the liquid amount of the produced liquid each time; and 4) calculating economic benefits according to the tested and calculated oil production quantity, the total production cycle time, the stage liquid production quantity, the oil price and the liquid production gathering and transportation processing cost, comparing and testing the production effect of the production condition combination according to the economic benefits, continuously exploring and using a better production strategy, and providing a new production method for reducing invalid liquid production of old oil fields and improving the economic benefits of production.

Description

technical field [0001] The invention relates to the technical field of oil production, in particular to a water-controlled oil-gathering production method. Background technique [0002] The oil well produced fluid is usually a mixture of oil, water and natural gas, but people's purpose is only to produce oil and natural gas, and the water produced along with it will not only waste the injected water and formation energy, but also increase gathering and transportation and oil-water separation treatment. Workload, etc., increase various costs, consume resources, and increase energy consumption. [0003] As the development time of the oilfield increases, the development efficiency gradually decreases, the water content of the produced fluid gradually increases, the energy consumption gradually increases, and the economic benefit is greatly reduced. rate becomes a necessary task. To control the water content, it is also to improve the utilization efficiency of formation energy...

AI Technical Summary

Problems solved by technology

The problem that most affects the adaptability of this oil production method is that this method requires relatively high formation energy, but most of the near-economic limit development wells cannot achieve sufficient formation pressure to make it economically beneficial, so an optimized manual intervention method is required

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