Tight oil exploration method and device
A technology of tight oil and geographical location, applied in the field of petroleum exploration, can solve the problems of long exploration period and large exploration risk, and achieve the effect of short exploration period, small exploration risk and small workload.
Inactive Publication Date: 2018-11-09
CHINA UNIV OF PETROLEUM (BEIJING)
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Problems solved by technology
[0005] The present invention provides a tight oil exploration method and device to overcome the technical problems of long exploration period and high follow-up exploration risk in the tight oil exploration method in the prior art
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[0029] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0030] Tight oil is the oil in tight reservoirs and is an important unconventional oil and gas resource. Since the abundance of tight oil is much lower than that of conventional oil, in order to obtain exploration benefits, it is necessary to find tight oil accumulation areas with relatively high abundance under the background of low ...
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The invention provides a tight oil exploration method and device. The tight oil exploration method comprises the steps that a first tight oil distribution area is determined according to the properties of hydrocarbon source rock corresponding to tight oil reservoirs, and at least one second tight oil distribution area is determined according to the porosity and the thickness of the first tight oil reservoirs in the first tight oil distribution area; at least one third tight oil distribution area is determined according to the development degrees of cracks of the second tight oil reservoirs in the second tight oil distribution areas; dessert target areas are determined in the third tight oil distribution area according to preset resource storage combination types, and tight oil exploration is conducted according to the dessert target areas. According to the tight oil exploration method, data is easy to collect, the workload is low, the period of predicting the dessert target areas of tight oil is short, and therefore the exploration period is short; in addition, the dessert target areas of the tight oil can be predicted for multiple tight oil reservoirs, and the subsequent exploration risk is low.
Description
Technical field [0001] The invention relates to petroleum exploration technology, in particular to a tight oil exploration method and device. Background technique [0002] Tight oil is the oil that occurs in tight reservoirs. It is an important unconventional oil and gas resource with huge exploration potential. Because the tight oil reservoir is very tight, the abundance of tight oil is much lower than that of conventional oil. To obtain exploration benefits, it is necessary to find tight oil accumulation areas with relatively high abundance under the background of low abundance, that is, tight oil accumulation. Dessert target area. [0003] In the prior art, methods for finding target areas of tight oil sweet spots include scoring method, multi-information comprehensive evaluation method, expert evaluation method, small bin method, etc., but the evaluation ideas of the above methods are all conventional oil and gas evaluation ideas , The target area for finding the sweet spot o...
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IPC IPC(8): G06Q50/02
CPCG06Q50/02
Inventor 罗群王葡萄朱蓄
Owner CHINA UNIV OF PETROLEUM (BEIJING)