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Comprehensive optimization and evaluation method for oil and gas drilling targets

An evaluation method, oil and gas technology, applied in geophysical measurement, instruments, etc., to reduce exploration risks and improve credibility

Active Publication Date: 2018-06-12
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0002] At present, the comprehensive evaluation and optimization of oil and gas drilling targets is to try to balance the risks and benefits of exploration targets while maximizing reserves. The return is the largest under a certain return or the risk is the smallest under a certain return, but the evaluation of exploration target selection needs to consider the balance of risk and return, so it is necessary to study the comprehensive selection evaluation method of oil and gas drilling targets

Method used

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  • Comprehensive optimization and evaluation method for oil and gas drilling targets
  • Comprehensive optimization and evaluation method for oil and gas drilling targets
  • Comprehensive optimization and evaluation method for oil and gas drilling targets

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Embodiment

[0026] Using the oil and gas drilling target optimization evaluation method, the 61 exploration wells deployed in Shengli Oilfield were optimized and evaluated.

[0027] Select 61 targets to be drilled in Shengli Oilfield, first analyze the basic geological data of the 61 targets, and calculate the geological risk and minimum economic-scale reserves respectively to obtain parameters such as geological risk coefficient and minimum economic-scale reserves of each target. figure 2 is the minimum economic scale reserve chart of different types of reservoirs, image 3 It is the evaluation board for comprehensive optimization of oil and gas drilling targets, and the optimization evaluation results are shown in Table 1.

[0028] Table 1 Optimal evaluation result table

[0029]

[0030]

[0031] The method for comprehensive optimization and evaluation of oil and gas drilling targets in the present invention can provide geological researchers with a set of simple and effective ...

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Abstract

The invention relates to a comprehensive optimization evaluation method of an oil and gas drilling target. The method comprises the steps that 1 basic geological condition analysis is carried out to calculate the oil and gas area and resource amount; 2 geologic risk quantitative evaluation is carried out to calculate the geological risk factor; 3 the minimum economic reserve scale plate is established through classification; 4 a risk-economic evaluation plate is established and a grading standard is established; and 5 the comprehensive optimization evaluation of the oil and gas drilling target is carried out. According to the comprehensive optimization evaluation method of the oil and gas drilling target, limited resources can be reasonably allocated; the exploration risk is reduced; and the credibility of exploration investment decision-making is greatly enhanced.

Description

technical field [0001] The invention relates to the technical field of oilfield development, in particular to a comprehensive optimization evaluation method for oil and gas drilling targets. Background technique [0002] At present, the comprehensive evaluation and optimization of oil and gas drilling targets is to try to balance the risks and benefits of exploration targets while maximizing reserves. The profit is the largest under a certain profit or the risk is the smallest under a certain profit, but the evaluation of exploration target selection needs to consider the balance of risk and return, so it is necessary to study the comprehensive selection evaluation method of oil and gas drilling targets. [0003] The biggest risk in oil and gas exploration is geological risk. An important factor that needs to be considered in the selection of drilling targets is geological risk. Therefore, the probability of geological success should be considered in the process of target se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V9/00
Inventor 王永诗赵铭海崔营滨杨永红高磊徐桂华张富民韩丽安天下石红霞张燕刘华夏
Owner CHINA PETROLEUM & CHEM CORP
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