Gas well investment evaluation method and device

An evaluation method and evaluation device technology, which is applied in the fields of instruments, finance, and data processing applications, can solve the problems of lack of gas well investment and the lack of guiding significance for gas well investment decision-making, shorten the decision-making cycle, advance the evaluation time of gas well benefits, and overcome The effect of benefit evaluation lag

Inactive Publication Date: 2017-03-15
PETROCHINA CO LTD
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Problems solved by technology

[0003] Although this method can evaluate the investment benefit of a single well, it has little guiding significance for the decision-making of gas well investment. Gas field decision makers always want to judge the investment benefit of the gas well as early as possible, rather than ...

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  • Gas well investment evaluation method and device
  • Gas well investment evaluation method and device
  • Gas well investment evaluation method and device

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Embodiment Construction

[0049] In order to make the technical solutions and advantages of the present invention clearer, the following further describes the embodiments of the present invention in detail with reference to the accompanying drawings.

[0050] The first embodiment of the present invention provides a gas well investment evaluation method, such as figure 1 Shown, including:

[0051] Step S1: Set the target internal rate of return and the expected probability of reaching the standard;

[0052] In this application, the internal rate of return refers to the discount rate when the total present value of capital inflows of gas wells is equal to the total present value of capital flows, and the net present value is equal to zero. Currently, it is generally believed that when the internal rate of return is greater than 12%, gas well investment can be profitable. Therefore, the target internal rate of return can be set to 12%. The expected probability of reaching the standard is the expected probabilit...

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Abstract

The invention discloses a gas well investment evaluation method and device. The method comprises the following steps: setting a target internal yield rate and an expected target-reaching probability; establishing a normal distribution probability function model of the target internal yield rate with respect to a unit open flow capacity investment based on the sample gas well investment of the sample gas wells, the original open flow capacity of the sample gas wells, and the sample internal yield rate; finding out the critical unit open flow capacity investment corresponding to the expected target-reaching probability according to the normal distribution probability function model; obtaining the unit open flow capacity investment of the gas well to be evaluated according to the gas well investment to be evaluated of the gas well to be evaluated and the original open flow capacity of the gas well to be evaluated; comparing the unit open flow capacity investment of the gas well to be evaluated with the critical unit open flow capacity investment. The method and device may perform investment evaluation after acquiring gas well original open flow capacity and budgeting the investment after oil testing, greatly advances the gas well benefit evaluation time, overcomes the hysteresis of the traditional gas well benefit evaluation, and shortens a gas field development and construction investment decision cycle.

Description

Technical field [0001] The invention relates to the technical field of oil and gas development, in particular to a gas well investment evaluation method and device. Background technique [0002] At present, the domestic oil industry gas well investment project benefit evaluation method is to use the cash flow method to determine whether the gas well is profitable by calculating the internal rate of return within a certain period of time after the gas well is put into production. The industry believes that when the internal rate of return is greater than 12%, gas well investment can be profitable. [0003] Although this method can evaluate the investment benefit of a single well, it is of little significance for gas well investment decision-making. Gas field decision makers always want to judge the investment benefit of gas wells as early as possible, rather than after a certain period of production. Whether the drilling investment and well site construction investment of this well...

Claims

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Application Information

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IPC IPC(8): G06Q40/06G06Q50/02
CPCG06Q40/06G06Q50/02
Inventor 赵益李玥洋陈艳秋彭先杨洪志徐昌海梅青燕王会强任利明谈健康
Owner PETROCHINA CO LTD
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