Oil-gas resource economy evaluation method

Abstract

The invention discloses an oil and gas resource economy evaluation method. The method comprises the following steps: I, determining basic research parameters; II, objectively weighting the parameters;III, performing parameter standardization processing to eliminate dimension influence; IV, constructing a quantitative mathematical model; V, establishing and forming an economy evaluation key parameter prediction quantity plate, and realizing a visual economy quantity plate; VI, establishing a trend surface prediction graph of a known area; VII, solving economic benefit indexes of the evaluationarea. According to the method, the economic evaluation is carried out on the oil and gas resources by utilizing geological factors, a bridge between the geological resources and economic benefit indexes is built through an economic quantity edition, and a high-exploration-degree area with explored reserves is used as an analogy block. A relationship quantity plate is established according to theknown economic benefits and related geological parameters of the high-exploration-degree area, so as to carry out analogy evaluation on the low-exploration-degree area at the geological resource quantity level.

Description

technical field [0001] The invention relates to an evaluation method, in particular to a method for evaluating the economics of oil and gas resources. Background technique [0002] At present, in the field of energy, the objects of economic benefit evaluation are mainly exploration investment projects and proven reserves. Economic evaluation of exploration has been developed since the late 1960s, and has three characteristics: first, exploration projects are taken as the object of economic evaluation; second, integrated evaluation of exploration and development; third, the combination of conventional economic evaluation and risk evaluation method. Liu Qingzhi (2013), Cao Yuan (2017), and Zhong Min (2018) conducted economic evaluations on oil and gas exploration and development projects, coalbed methane projects, and tight oil resources development projects, respectively. In the evaluation of the economic benefits of oil and gas resources in the field of exploration, unlike...

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Problems solved by technology

[0003] The economic benefit evaluation methods of foreign companies mainly consider financial indicators, such as net cash flow before tax, sales revenue, investment, etc. This evaluation method is more effective for proven recoverable reserves and controlled recoverable reserves, but for undiscovered resources, Since the discounted cash flow cannot be given, the evaluation accuracy is low (Jin Zhijun, 2002)

At the same time, the economic benefit evaluation method based on financial indicators still has the following defects: 1. The evaluation indicators are expanded layer by layer, and the uncertainty is accumulated step by step; 2. Most of the indicators in the evaluation method are financial parameters. Insufficient consideration; 3. There are many financial indicators and parameters, and the model is complicated, which is difficult to use in decision-making

Therefore, at the resource level, there are no targeted economic evaluation methods and technical means at home and abroad.

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