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Oil and gas trap combination exploration optimization method

An optimization method, a technology of the oil and gas circle, applied in the field of oil and gas geological exploration, can solve problems such as the combination evaluation of exploration targets that cannot be trapped

Inactive Publication Date: 2014-04-09
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] In order to solve the defect that the existing trap evaluation method cannot quantitatively evaluate the trap exploration target combination, the present invention provides an oil and gas trap combination exploration optimization method

Method used

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  • Oil and gas trap combination exploration optimization method
  • Oil and gas trap combination exploration optimization method
  • Oil and gas trap combination exploration optimization method

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Experimental program
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Effect test

Embodiment

[0054] A type I oil reserve trap combination, the number is 21, and the total trap area is 106.5Km 2 , the total oil geological reserves are 12260×10 4 t, the basic parameters of this type I reserve trap combination are shown in Table 1:

[0055] Table 1

[0056]

[0057] Due to the limitation of the total planned investment, it is impossible to drill all of these 21 traps, and their combination must be optimized. The total investment in the plan is required to be less than 5×10 8 Yuan RMB, the geological reserves that may be controlled are required to be greater than 3000×10 4 Under the condition of t, combined optimization was carried out by experts according to the usual practice, and a total of 8 traps with trap numbers 9, 10, 13, 14, 15, 19, 20, and 21 were selected, and the total geological reserves that may be controlled are 3028×10 4 t, the cumulative risk variance of the trap combination is 1720×10 4 t.

[0058] In order to detect whether the combined explora...

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Abstract

The invention relates to an oil and gas trap combination exploration optimization method. According to the optimization method, an optimization theory in operational research is used; on the basis that reasonable geological reserve calculation and strict risk analysis are carried out on a trap combination, an oil and gas trap linear programming model is established; under the conditions of capital constraint and a determined risk scope, the maximum geological reserve of the oil and gas trap combination is acquired; or under the conditions of capital constraint and a determined geological reserve condition, the minimum risk variance of the oil and gas trap combination is acquired; and balance between risk and return of the whole oil and gas trap combination exploration is realized. Practical application shows that the method has the advantages of reliable effect and strong operability, can provide a scientific basis for the decision of oil and gas trap exploration, and has strong practicality.

Description

technical field [0001] The invention belongs to the field of oil and gas geological exploration, in particular to an oil and gas trap combination exploration optimization method. Background technique [0002] Trap evaluation is the basic evaluation content in resource evaluation, and the accuracy of trap evaluation directly affects the reliability of oil and gas resources or oil and gas reserves. The main content of trap evaluation is to comprehensively evaluate the reliability, oil and gas content and exploration benefits of traps. When making exploration decisions for any combination of oil and gas traps, it is always necessary to consider how to reduce and avoid trap area and reserve calculation. The exploration risks brought about by the uncertainties can obtain the maximum economic benefits. [0003] Thousands of reserve traps are discovered every year in my country, with oil and gas resources amounting to tens of billions of tons. Usually, when making combination opt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04
Inventor 张建宁李子锋黎娜吕公河
Owner CHINA PETROLEUM & CHEM CORP
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