Sea area favorable oil-gas exploration area determining method

A favorable area, oil and gas technology, applied in the field of determining favorable areas for offshore oil and gas exploration, can solve the problems of inaccurate judgment results and high costs, and achieve the effects of reducing exploration risks and expenses, improving accuracy, and reducing exploration target areas.

Active Publication Date: 2015-05-06
PETROCHINA CO LTD
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  • Claims
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Problems solved by technology

[0005] The invention provides a method for determining favorable areas for oil and gas exploration in sea areas to at least solve the problems in the prior art that the cost of judging favorable areas for oil and gas exploration in sea areas is high and the judgment results are not accurate enough

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  • Sea area favorable oil-gas exploration area determining method
  • Sea area favorable oil-gas exploration area determining method

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Embodiment Construction

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. 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.

[0017] The embodiment of the present invention provides a method for determining favorable areas for oil and gas exploration in sea areas, which is applicable to the general survey stage of oil and gas information in sea areas. figure 1 It is a flowchart of a method for determining a favorable area for oil and gas exploration in a sea area according to an embodiment of the present invention, such as figure 1 As shown, the method includes the follow...

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Abstract

The invention discloses a sea area favorable oil-gas exploration area determining method. The sea area favorable oil-gas exploration area determining method comprises obtaining remote sensing data of a sea area to be explored and identifying leaked oil slick; performing inverse simulation on sea surface winds through the remote sensing data to determine the source and the trend of the leaked oil slick, and taking the area inside the set range around the initial distributing position of the leaked oil slick as a sea surface oil-gas leakage zone; extracting sea floor gravity and magnetic abnormality information from the stratum gravity and magnetic data corresponding to the sea area to be explored; according to the sea surface oil-gas leakage zone and the sea floor gravity and magnetic abnormality information, establishing a position relationship between the sea surface oil-gas leakage zone and a sea floor oil-gas reservoir; according to the position relationship, determining a sea area favorable oil-gas exploration area. By means of a non-contact mode, sea surface oil slick information can be extracted rapidly and effectively to determine most favorable target exploration areas, so that multiplicity of solution of remote sensing oil-gas information extraction can be reduced, and the accuracy can be enhanced; meanwhile, exploration risks and cost can be reduced, the target exploration areas can be narrowed, the exploration schedule can be accelerated, and effective technical guarantee can be provided for sea area oil-gas exploration.

Description

technical field [0001] The invention relates to the technical field of oil and gas information detection, in particular to a method for determining favorable areas for oil and gas exploration in sea areas. Background technique [0002] With the gradual depletion of onshore oil and gas resources and the serious shortage of oil and gas supply in the world, the exploration and development of oil and gas in sea areas has become a new field and research focus of oil and gas exploration. There are very rich oil and gas resources in my country's territorial waters. The third oil resource evaluation shows that the amount of offshore oil resources is 24.6 billion tons, accounting for 22.9% of the country's total oil resources, while the proven rate of offshore oil is only 12.3%, far from Far lower than the world's average proven rate of 73% and the United States' proven rate of 75%. Hydrocarbon seepage is common in marine oil and gas reservoirs, which causes a series of anomalies in ...

Claims

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Application Information

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IPC IPC(8): G01V11/00
Inventor 申晋利于世勇邢学文张友焱曾齐红谢兴胡艳叶勇张强
Owner PETROCHINA CO LTD
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