A method for calculating the oil content of oil shale

An oil shale and oil content technology, applied in special data processing applications, complex mathematical operations, instruments, etc., can solve the problems of inability to achieve oil content data, too many logging data, time-consuming, etc., and achieve rapid evaluation of oil shale. High quality, cheap and convenient, short time-consuming effect

Active Publication Date: 2019-04-02
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

However, the traditional method of measuring oil content in the laboratory or using logging data to calculate the oil content of oil shale is expensive, the process is time-consuming, discontinuous, or requires more logging data, which cannot be achieved in the field or at the drilling site. Quickly obtain oil content data to judge the quality of oil shale

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  • A method for calculating the oil content of oil shale

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Embodiment

[0048] In order to facilitate the understanding of the solutions provided by the present invention and their effects, a specific example is given below. It should be understood by those skilled in the art that this embodiment is only for the convenience of understanding the present invention, and any specific details thereof are not intended to limit the present invention in any way.

[0049] Take the oil shale core of an exploratory well in a domestic oil shale mining area as an example.

[0050]Step 1, firstly, use a portable ore element analyzer to measure the element percentage content of a certain oil shale sample at the drilling site, and obtain the percentage content of each element in the oil shale, mainly including (Si, Al, Fe, Ca, K, S and other elements); Then, separate and sort out the percentages of S elements and Al elements that have a better correlation with the oil content, which are respectively 0.994% and 4.511%;

[0051] Step 2, based on the oil shale oil ...

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Abstract

The invention discloses a method for calculating the oil content of oil shale, which comprises the following steps of obtaining the percentage contents of an S element and an Al element in an oil shale sample based on the oil shale sample; based on oil shale oil content data measured in a laboratory of an oil shale mining area where the oil shale sample is located, obtaining a calculation coefficient through multivariate regression analysis, and establishing an oil shale oil content regression equation M = a + bCS + cCAL, wherein M is the oil content of the oil shale, Cs and CAL are the percentage contents of an S element and an Al element respectively, and a, b and c are calculation coefficients; and obtaining the oil content of the oil shale based on the percentage contents of the S element and the Al element and the oil content regression equation of the oil shale. According to the method provided by the invention, the oil content of the oil shale can be quickly calculated through the obtained percentage contents of the S element and the Al element and the oil content regression equation of the oil shale.

Description

technical field [0001] The invention relates to the technical field of formation oil content detection, and more specifically, to a method for calculating oil content of oil shale. Background technique [0002] Existing oil shale oil content determination methods mainly include low-temperature dry distillation, logging interpretation and rock pyrolysis. The low-temperature dry distillation method is mainly used to measure the oil content of oil shale pyrolysis in the laboratory through low-temperature dry distillation of aluminum screens. This method is time-consuming, expensive, and the data is not continuous. The logging interpretation method uses oil shale logging data to analyze and calculate the oil content, mainly including the following two methods. One method is to analyze the logging response characteristics of oil shale and combine the analysis results of oil shale cores. The oil shale oil content is calculated by using the regression analysis method; the other me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06F17/18
CPCG06F17/18G06F30/20
Inventor 陈新军武晓玲胡宗全张英李朋威冯建贇
Owner CHINA PETROLEUM & CHEM CORP
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