Method and device for determining reservoir type

Abstract

The invention provides a method and device for determining the reservoir type.The method comprises the steps that the content concentration of hexa-hydrogen dibenzothiophene series homolog in a crude oil sample in a reference work position and physical property parameters of the crude oil sample are utilized, and a relational expression between the content concentration and the physical property parameters is obtained in through fitting; physical property parameters of a crude oil sample in a target work position are obtained according to the fitting relational expression and the content concentration of hexa-hydrogen dibenzothiophene series homolog in the crude oil sample in the target work position; finally, the reservoir type of the crude oil sample in the target work position is determined according to the physical property parameters of the crude oil sample in the target work position.According to the method and device, a novel matched well drilling, well testing and oil testing method is formed by fast determining the reservoir type, exploration cost is reduced, scale merit development is achieved, oil and gas reservoirs in an undrilled region are predicated fast and conveniently, a novel method and technique are provided for fast and efficient prediction of the oil and gas character and discovering of a new oil field, and therefore exploration and development are guided.

Description

technical field [0001] The invention relates to the technical field of petroleum exploration, in particular to a method and device for determining an oil reservoir type. Background technique [0002] At present, with the improvement of oil exploration, oil and gas resources are getting worse and worse, heavy oil, oil sands, and even deep heavy oil are getting more and more attention, and gradually become one of the main objects of exploration. [0003] However, oil and gas resources such as heavy oil, oil sands, and even deep heavy oil often coexist with conventional oil and gas resources. For example, in heavy oil distribution areas, normal oil reservoirs may be preserved; in deep exploration areas, a large number of heavy oil reservoirs may be preserved. Therefore, how to predict oil and gas quality and reservoir type is a difficult problem in oil and gas exploration. [0004] In general, a series of crude oil samples can be collected through drilling, and the physical a...

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Problems solved by technology

[0006] The embodiment of the present invention provides a method and device for determining the reservoir type to solve the prediction problem of the reservoir type in the prior art

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