A Calibration Method for Parameters of Finite Parallel First-Order Reaction Hydrocarbon Kinetic Model

A technology of model parameters and hydrocarbon dynamics, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve the problems that cannot be used to approximately describe the hydrocarbon formation process of organic matter, and cannot approximately reflect the kerogen bond type composition.

Inactive Publication Date: 2011-12-21
NORTHEAST GASOLINEEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

From a kinetic point of view, since the chemical reaction rate is extremely sensitive to changes in the value of the activation energy, the large interval of 10×4.187kJ/mol obviously cannot approximately reflect the bond compositio

Method used

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  • A Calibration Method for Parameters of Finite Parallel First-Order Reaction Hydrocarbon Kinetic Model
  • A Calibration Method for Parameters of Finite Parallel First-Order Reaction Hydrocarbon Kinetic Model
  • A Calibration Method for Parameters of Finite Parallel First-Order Reaction Hydrocarbon Kinetic Model

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0111] Example 1: Taking the calibration of the thermal simulation experiment parameters of the mudstone of Well Du 13 in the Songliao Basin as an example, the calibration method of the parameters of the finite parallel first-order reaction hydrocarbon generation kinetic model is described in more detail.

[0112] Table 1 Information of mudstone samples in Well Du13

[0113]

[0114] For specific steps, see figure 1 :

[0115] Step 1: Construct the chemical kinetic model of kerogen to oil

[0116] XO = Σ i = 1 NO XO i = Σ i = 1 NO ( XO i 0 ( 1 - exp ...

Embodiment 2

[0158] Example 2: Taking the calibration of the thermal simulation experiment parameters of crude oil in Lunnan 57 Well as an example, the calibration method of the parameters of the finite parallel first-order reaction hydrocarbon formation kinetic model is described in more detail.

[0159] Table 2 Sample information

[0160] area

the depth

layers

lithology

C(％)

H(％)

N(％)

S(％)

O(％)

Tarim Basin

Ordovician

Marine crude oil

85.16

14.37

0.67

-

＜0.3

[0161] The difference between embodiment 2 and embodiment 1 is that the gold tube thermal simulation experiment under the closed system is used to obtain the experimental parameters, and the main calibration is the cracking of crude oil into an aerodynamic model, namely:

[0162] XG = Σ i = 1 NG XG ...

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Abstract

The invention discloses a method for calibrating hydrocarbon generation dynamical model parameters by finite first-order parallel reaction and is applied to the technical field of evaluation of hydrocarbon resources. On the basis of a hydrocarbon generation dynamical theory, the method is used for describing a hydrocarbon generation process of an organic matter. By the method, kerogen oiling, kerogen gassing and oil gassing which are greatly different from one another and dynamical processes of different types of organic matters can be separately discussed effectively. Furthermore, by a modelcalibration math method, an optimization approximate solution is performed; therefore, defects of limited calibration precision improvement and relatively redundant calculation quantity which are caused by infinite first-order parallel reaction can be overcome; and calculation without a precise solution under an experimental condition is realized through approximate solution of dynamical parameters. By the method, the description of a complicated process of organic matter hydrocarbon generation and a quantitative and dynamic description for organic matter hydrocarbon generation characteristics are realized effectively.

Description

technical field [0001] The invention belongs to the technical field of oil and gas resource evaluation, relates to the description of kinetic parameters of organic hydrocarbon formation, and is a technique for describing the chemical reaction process of organic hydrocarbon formation based on the principle of hydrocarbon formation kinetics. Background technique [0002] Before the 1990s, the establishment of kinetic models of organic matter hydrocarbon generation and the optimization of parameters began to be explored both at home and abroad. When studying a hydrocarbon formation kinetics feature, the first thing to face is the choice of chemical kinetics principle. The reaction kinetic models that have also been proposed so far include: (1) the total package reaction model, including two subtypes of the total package first-order reaction and the total package non-first-order reaction; (3) parallel first-order reactions, including infinite parallel first-order reactions Fir...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 王民卢双舫薛海涛刘敏
Owner NORTHEAST GASOLINEEUM UNIV
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