Integrated Characterization Method of Energy Consumption-Production-Benefit in Water Drive Reservoir

Abstract

The present invention provides an integrated characterization method of energy consumption-production-benefit of a water drive oil reservoir. The integrated characterization method of energy consumption-production-benefit of a water drive oil reservoir includes: step 1, analyzing the flow of the oil and gas production system and dividing nodes; Step 2, calculate the energy efficiency of the water injection system; Step 3, calculate the energy efficiency of the oil production system; Step 4, calculate the energy efficiency of the treatment and circulation system; Step 5, calculate the water-oil conversion efficiency of the reservoir system; Step 6, calculate the production of the whole system; Step 7, calculate System-wide benefits. The energy consumption-production-benefit integrated characterization method of water flooding reservoirs can predict the production and benefits under the given energy and cost input conditions. By comparing the difference between the theoretical model production and actual production, the working status of the oil and gas production system can be accurately grasped. And be able to analyze the problem link, put forward improvement suggestions to guide oilfield production.

Description

technical field [0001] The invention relates to the technical field of oil and gas development, in particular to an integrated characterization method of energy consumption-yield-benefit of a water drive oil reservoir. Background technique [0002] At present, most of the old oilfields in eastern my country have entered the period of high water cut and ultra-high water cut, and the sustained and stable production of oilfields is more dependent on the method of high injection production and high energy consumption. On the one hand, the sharp increase in water content has brought challenges to EOR and seriously restricted the sustainable development of the company itself; on the other hand, the company's awareness of environmental protection and social responsibility has strengthened, and the original extensive sewage treatment and management methods must be changed. From the perspective of resources, the utilization of a large amount of excess sewage in oil fields requires sc...

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Problems solved by technology

[0003] Water drive reservoir development involves four major processes: injection, reservoir, production, and surface treatment. With the continuous material and energy exchange between injected water and formation fluid, it is also accompanied by changes in cost and energy consumption. Efficient water cycle management must Based on a clear mathematical relationship, there is currently no clear mathematical model to describe the relationship between output-energy consumption-cost

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