Latin hypercube sampling oil field liquid producing structure optimization method, storage medium and terminal
A Latin hypercube and optimization method technology, applied in data processing applications, forecasting, instruments, etc., can solve the problem of inability to achieve high and stable oil production and environmental protection production, inability to achieve global optimization of oil field liquid production structure, and inability to fully consider the liquid production structure Optimize the impact of the effect and other issues to achieve the effect of reducing sewage discharge
Active Publication Date: 2019-07-23
CHINA NAT OFFSHORE OIL CORP +1
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Problems solved by technology
Therefore, there are two problems in the prior art: one is that it cannot guarantee that a suitable water flooding curve can be found in the whole production process of all oil wells to characterize its water cut rising law; The effect of optimization
Therefore, the existing technology cannot achieve the global optimization of the oilfield liquid production structure, let alone achieve the dual goals of high and stable production and environmentally friendly production in the oilfield
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[0036] refer to figure 1 , the Latin hypercube sampling oilfield liquid production structure optimization method of this embodiment includes:
[0037] S1. Use the Latin hypercube sampling algorithm to process the timing and range of liquid extraction of the oil well to determine multiple simulation schemes. The timing of liquid extraction is the specific water cut at which the oil well increases the liquid production rate, and the liquid extraction range is before and after the oil well increases the liquid production rate. Each simulation scheme includes a set of liquid extraction timing and liquid extraction range.
[0038] S2. Input multiple simulation schemes into the reservoir numerical simulation software for simulation to obtain oil well response variables;
[0039] S3. Compare the response variable of the oil well with the historical liquid production structure of the oilfield to which it belongs or the historical liquid production structure of similar oilfields, and ...
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The invention relates to a Latin hypercube sampling oil field liquid producing structure optimization method, a storage medium and a terminal. The method comprises the following steps: processing theliquid extraction time and the liquid extraction amplitude of an oil well by using a Latin hypercube sampling algorithm to determine a plurality of simulation schemes; respectively inputting the plurality of simulation schemes into oil reservoir numerical simulation software for simulation to obtain oil well response variables; comparing the oil well response variable with a historical liquid producing structure of an oil field to which the oil well response variable belongs or a historical liquid producing structure of a similar oil field, and screening out a simulation scheme set meeting conditions; and processing the simulation scheme set by using a genetic algorithm to obtain an optimal liquid extraction scheme. According to the method, the mutual influence among the oil well, the liquid extraction time, the liquid extraction amplitude and all the factors is considered, multi-factor simultaneous optimization is achieved by integrally applying a Latin hypercube sampling method, andan optimal liquid extraction scheme is screened and determined by using a multi-factor genetic algorithm. High and stable yield of the oil field is achieved, meanwhile, oil field sewage discharge isreduced, and finally technical recovery efficiency and environment-friendly development of the oil field within the economic life are achieved.
Description
technical field [0001] The invention relates to the field of optimization of oilfield liquid production structure, and more specifically relates to a Latin hypercube sampling oilfield liquid production structure optimization method, a storage medium and a terminal. Background technique [0002] The optimization of oilfield liquid production structure is an economical and effective main production increase measure in the whole life cycle of water flooding development oilfield. The distribution of oilfield liquid production is not only related to whether the oilfield can achieve high and stable production and technical recovery within the economic life, but also related to whether it can Reduce sewage discharge to achieve environmentally friendly production. The existing technology is generally optimized based on the water drive theory of oil wells. The mathematical model and calculation module for timely optimization of the multi-well liquid production structure are establish...
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IPC IPC(8): G06Q10/04G06Q10/06G06Q50/02
CPCG06Q10/04G06Q10/0637G06Q50/02
Inventor 戴宗闫正和谢明英李海龙王亚会缪云涂志勇孙晓娜李林蒋鏖谷悦
Owner CHINA NAT OFFSHORE OIL CORP