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Method for calculating CO2 salty water layer mineral sequestration potential

A technology for storing potential and saline water layers, which is applied in calculations, special data processing applications, instruments, etc., and can solve problems such as errors in calculation results, uncorrectable geochemical models, and errors

Inactive Publication Date: 2015-08-19
HEBEI UNIV OF ENG
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Problems solved by technology

For mineral CO 2 storage potential, some scholars use the CO2 based on the actual geological model 2 However, the numerical model itself has many uncertainties, and the inaccurate assignment of parameters will also lead to errors or even errors in the calculation results. In most cases, the geochemical model cannot be corrected, and the given The credibility of the results is questionable

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  • Method for calculating CO2 salty water layer mineral sequestration potential
  • Method for calculating CO2 salty water layer mineral sequestration potential
  • Method for calculating CO2 salty water layer mineral sequestration potential

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no. 1 example

[0030] Using the above CO 2 The method for calculating the mineral storage potential of saline water layers is to calculate the mineral storage potential of the saline water layer reservoirs developed in the Changling Sag, the central depression area of ​​Jilin Oilfield, in the Upper Cretaceous Qingshankou Formation to Nenjiang Formation. Reservoir lithology characteristics show that it is suitable for CO 2 The sealed saline layers are the 1st, 2nd and 3rd members of the Qingshankou Formation and the 1st member of the Yaojia Formation, and the corresponding cap rocks are the thick-bedded mudstones of the Nenjiang Formation and the 2nd and 3rd members of the Yaojia Formation. The total sandstone volume V of the first, second and third members of the Qingshankou Formation and the first member of the Yaojia Formation is 430km 3 ,980km 3 , 1500km 3 Lee 80kmn 3 ; The average porosity φ is 14.1%, 18.7%, 18.7% and 9.2%, respectively, namely CO 2 The total effective volume of sea...

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Abstract

The invention belongs to the technical field of geochemistry, in particular to a method for quantitatively calculating a CO2 salty water layer mineral sequestration potential by using a water-rock-CO2 geochemistry reaction. The CO2 sequestration potential is calculated according to the CO2 quantity consumed in the dissolving process of feldspar-like minerals in rock volume per unit and rock effective volume, contribution of calcite dissolving to the CO2 sequestration quantity is not contained in the calculating process, and only the quantity of CO2 consumed in the geochemistry reaction of the feldspar-like minerals is considered.

Description

technical field [0001] The invention belongs to the technical field of geochemistry, in particular to a water-rock-CO 2 Geochemical reactions to quantify CO 2 Approaches to the mineral storage potential of saline aquifers. Background technique [0002] Under the pattern and background of global climate and environmental pollution, energy conservation and emission reduction is an industry actively promoted by government agencies. CO 2 Saline aquifer storage considered to reduce CO 2 One of the most efficient methods for emissions, the existing commercial-scale and pilot-scale CO 2 The storage test also proved that it is technically feasible. A lot of CO 2 After injected into the saline layer, it will be stored in the form of structure and structure capture, residual gas capture, solution capture and mineral capture; from the capture form, it will be stored in the form of free state, dissolved state and mineral state. In other words, the total CO 2 The storage potentia...

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Application Information

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IPC IPC(8): G06F19/00
Inventor 金超李义曼曾荣树刘浪涛王冬利魏利娜
Owner HEBEI UNIV OF ENG
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