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Oil-gas migration route tracing method through geology, geophysics and geochemistry methods

A geochemical, oil and gas migration technology, applied in construction and other directions, can solve problems such as difficult to achieve factors, simplified models, complicated oil and gas migration paths, etc.

Inactive Publication Date: 2015-03-04
CHINA UNIV OF PETROLEUM (BEIJING) +1
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Problems solved by technology

[0006] For the above PATHWAYS TM The model is too simplified, the factors considered by the OILTRACK model are difficult to realize, and in the exploration of oil and gas resources in my country, the oil and gas migration paths are intricate and require more detailed research on oil and gas migration paths. The present invention comprehensively applies geological, geophysical and geochemical methods The research of oil and gas migration path is carried out in order to effectively determine the oil source relationship, establish the transport grid and trace the oil and gas migration path, so as to serve oil and gas exploration

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  • Oil-gas migration route tracing method through geology, geophysics and geochemistry methods
  • Oil-gas migration route tracing method through geology, geophysics and geochemistry methods
  • Oil-gas migration route tracing method through geology, geophysics and geochemistry methods

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Embodiment 1

[0040] The invention has been successfully applied in the JX1-1 oilfield of the Bohai Bay Basin.

[0041] The oil and gas in the JX1-1 oilfield comes from the Es3 and Es1 source rocks, of which the Es3 source rock is in finger-like contact with the fan delta at the same period, and the Es1 source rock is in contact with the braided river delta overlying the E3E Stacked vertically.

[0042] According to the method of the present invention, the geological research of the transport layer is firstly carried out (1) establishment of a regional isochronous stratigraphic framework through seismic stratigraphy and sequence stratigraphy; (2) restoration of ancient landforms; (3) analysis of ancient provenances (4) Use high-resolution 3D seismic, drilling and core data to clarify the sedimentary facies in the study area; (5) Determine the development horizons of the main transport layers and the configuration of the transport layers and source rocks relation.

[0043] According to the...

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Abstract

The invention provides an oil-gas migration route tracing method through geology, geophysics and geochemistry methods. The oil-gas migration route tracing method through the geology, geophysics and geochemistry methods comprises the following steps of (1) performing geologic study of a carrier bed to determine the configuration relation between the carrier bed and source rock; (2) determining geophysics characterization of the carrier bed to determine spatial distribution and petrophysical distribution of the carrier bed to predict an oil-gas migration route; (3) tracing and checking the predicted oil-gas migration route in step (2) through a geochemistry method. According to the oil-gas migration route tracing method through the geology, geophysics and geochemistry methods, the geology, geophysics and geochemistry methods are comprehensively used for studying the oil-gas migration route. The oil-gas migration route tracing method through the geology, geophysics and geochemistry methods aims at effectively determining oil source relationship, establishing a transportation frame and tracking the oil-gas migration route and serving oil-gas exploration.

Description

technical field [0001] The invention belongs to the field of secondary migration of oil and gas, in particular to the lateral migration of oil and gas in a sandstone transport layer, in particular to a method for tracing the migration path of oil and gas by comprehensively applying geological, geophysical and geochemical methods. Background technique [0002] "Oil and gas migration is one of the most difficult problems to study in petroleum geology and the most difficult to predict in oil and gas exploration" (Deng Yunhua, 2004). Static source layers, reservoirs, caprocks, traps and preservation conditions can be directly analyzed and more accurately predicted using high-quality seismic and drilling data. However, oil and gas migration is a dynamic process that occurred in the geological historical period (Chen Heli, 1995; Li Mingcheng, 1995; Deng Yunhua, 2004), which is difficult to identify under geological conditions. [0003] At present, there are two different views on...

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Application Information

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IPC IPC(8): E21B47/11
CPCE21B47/11
Inventor 邹华耀郝芳徐尚田金强鲍晓欢王奇
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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