Method for calculating the height of an oil-gas column under a source

A calculation method and oil and gas technology, applied in the calculation of the height of the oil and gas column under the source, the calculation of the height of the oil and gas column, can solve the problems of accumulation and accumulation, and achieve the effect of great significance, reasonable design and huge economic benefits

Pending Publication Date: 2020-03-27
DAGANG OIL FIELD OF CNPC
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Problems solved by technology

Since the density of oil and gas is lighter than that of water, oil and gas usually migrate to the upper part of the source rock under the action of buoyancy after they are generated and discharged from the source rock. However, in some cases, oil and gas can also accumulate in the lower part of the source rock. , become a blind spot in oil and gas exploration

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  • Method for calculating the height of an oil-gas column under a source
  • Method for calculating the height of an oil-gas column under a source
  • Method for calculating the height of an oil-gas column under a source

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Embodiment Construction

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0039] see Figure 1~4 , taking the analysis of oil and gas reservoirs in the lower part of a source rock in the Chezhen Sag of the Jiyang Depression as an example, a calculation method for the height of the oil and gas column under the source includes the following steps:

[0040] Step 1. Extract the source rock acoustic time difference data. Based on the logging data in the study area, extract the acoustic wave time difference data of the normal pressure sec...

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Abstract

The invention discloses a method for calculating the height of an oil-gas column under a source. The method comprises the steps of extracting hydrocarbon source rock interval transit time data, calculating the stress of an oil-gas reservoir under the source and calculating the height of the oil-gas column under the source. The method has the beneficial effects that the possibility of accumulationand accumulation of oil and gas at the lower part of the hydrocarbon source rock can be quickly and effectively judged, a calculation method for quantitatively characterizing the height of the oil andgas column under the source is provided, the method is of great significance to exploration of oil and gas resources under the source, important data support can be provided for oil and gas exploration work in a research area, and huge economic benefits are achieved.

Description

technical field [0001] The invention relates to a calculation method for the height of an oil-gas column, in particular to a calculation method for the height of an oil-gas column under a source, and belongs to the technical field of exploration and development of petroleum and natural gas geological resources. Background technique [0002] Oil and natural gas are the most important fossil fuels discovered so far by human beings, and they are of great significance to ensuring national energy security and social development. Since the density of oil and gas is lighter than that of water, oil and gas usually migrate to the upper part of the source rock under the action of buoyancy after they are generated and discharged from the source rock. However, in some cases, oil and gas can also accumulate in the lower part of the source rock. , become a blind spot in oil and gas exploration. When the overpressure in the middle of the source rock is high, it is difficult for the oil an...

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Application Information

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IPC IPC(8): G06F30/20G06F119/14
Inventor 王鑫周立宏金凤鸣付立新楼达李宏军赵勇刚崔宇李会慎张津宁杨子玉段润梅王辉
Owner DAGANG OIL FIELD OF CNPC
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