J4 ›› 2011, Vol. 41 ›› Issue (4): 1020-1027.

Previous Articles     Next Articles

Thermodynamic Equilibrium of Calcite in Strata Environment and Its Application of Burial Karst Forcasting in Tahe Oil Field, Tarim Basin

RUAN Zhuang1, YU Bing-song2, LI Zhao-hui3, ZHU Xiao-min1   

  1. 1.State Key Laboratory of |Petroleum Resource and Prospecting, China University of Petroleum, Beijing102249,China;
    2.State Key Laboratory of Geological Process and Mineral Resources, China University of Geosciences, Beijing100083, China;
    3.Exploration and Development Institute of Jilin Oilfield, Songyuan138000, Jilin, China
  • Received:2010-09-29 Online:2011-07-26 Published:2011-07-26

PDF (PC)

712

Abstract:

The solubility of calcite in the diagenesis is closely related to the chemistry of groundwater and the temperature. According to the reaction equilibrium of CaCO3 and activity of Ca2+ in groundwater, the solubility of calcite in different temperatures and pressures could be calculated. The pH value and the temperature of solution are the main factors to control the solubility of calcite. The dissolving tendency of calcite could be judged by the Gibbs free energy. The condition with ΔG<0 in the solution is favorite to dissolution of calcite and that with   ΔG>0 is favorite to deposit of calcite. The ΔG of groundwater in thirty-four wells are calculated, Tahe oilfield. The results show that: present groundwater conditions favor the dissolution of calcite, the calcite tends to dissolute more in west and south area. This water-rock reaction theory can be used to quantitative understand the burial karst tendency and support the reservoir evaluaterating.

Key words: Gibbs free energy, equilibrium constants, dissolving tendency, calcite, karst

CLC Number: 

  • P618.13
[1] Shu Longcang, Li Shulei, Wang Song, Keremu Abudumijiti, Lu Chengpeng, Li Yange, Li Wei. Selection of Risk Evaluation Index for Safe Water Supply in Karst Water Source: An Example of the Well Field of Niangziguan Spring [J]. Journal of Jilin University(Earth Science Edition), 2018, 48(3): 805-814.
[2] Tian Ya, Du Zhili, Liu Baoxian, Du Xiaodi, Chen Yi. Characteristics of Ordovician Weathering Crust Reservoir in Yichuan-Huanglong Area, Southeastern Ordos Basin [J]. Journal of Jilin University(Earth Science Edition), 2017, 47(6): 1620-1630.
[3] Zhao Xiaoer, Chang Yong, Peng Fu, Wu Jichun. Experimental Study of Solute Transport in Pool-Pipe System and Its Significance on Karst Hydrogeology [J]. Journal of Jilin University(Earth Science Edition), 2017, 47(4): 1219-1228.
[4] Chen Peng, Shan Xuanlong, Hao Guoli, Zhao Rongsheng, Zhou Jian. Faults and Karsts Controlled Geothermal Genesis Model of Xianrenqiao Hot Spring in Changbai Mountain [J]. Journal of Jilin University(Earth Science Edition), 2017, 47(4): 1236-1246.
[5] Li Zhenling, Shen Jinsong, Li Xining, Wang Lei, Dan Weining, Guo Sen, Zhu Zhongmin, Yu Renjiang. Estimating Porosity Spectrum of Fracture and Karst Cave from Conductivity Image by Morphological Filtering [J]. Journal of Jilin University(Earth Science Edition), 2017, 47(4): 1295-1307.
[6] Han Kai, Zheng Zhijie, Gan Fuping, Chen Yixiang, Chen Yuling. Determination of Complex Karst Water Channel Using Multi-Source High Power Mise-A-La-Masse Method [J]. Journal of Jilin University(Earth Science Edition), 2016, 46(5): 1501-1510.
[7] Zhou Changsong, Zou Shengzhang, Li Lujuan, Zhu Danni, Lu Haiping, Xia Riyuan. Implications of Cadmium Forms and Risk Assessment of Calcareous Soil in Karst Area: A Case Study of Maocun in Guilin, China [J]. Journal of Jilin University(Earth Science Edition), 2016, 46(2): 552-562.
[8] Wang Jiasheng, Wen Hanjie. Sm-Nd Dating of Hydrothermal Calcites from Jiaoli-Lae Mercury Deposit, Guizhou Province [J]. Journal of Jilin University(Earth Science Edition), 2015, 45(5): 1384-1393.
[9] Jiang Guanghui, Guo Fang, Yu Shi. Chemographs of Karst Water System and Its New Application in Hydrogeological Survey [J]. Journal of Jilin University(Earth Science Edition), 2015, 45(3): 899-907.
[10] Kang Zhiqiang, He Shiyi, Luo Yunyi. Cause and Change Trend of Water Chemistry of Epikarst System Under the Vegetation Restoration:A Case of Landiantang Epikarst Spring, Nongla, Mashan, Guangxi [J]. Journal of Jilin University(Earth Science Edition), 2015, 45(1): 232-239.
[11] Huang Qibo, Qin Xiaoqun, Liu Pengyu, Kang Zhiqiang, Tang Pingping. Applicability of Karst Carbon Sinks Calculation Methods in Semi-Arid Climate Environment [J]. Journal of Jilin University(Earth Science Edition), 2015, 45(1): 240-246.
[12] Zhao Yonggang, Chen Jingshan, Li Ling, Gu Yonghong, Zhang Chunyu, Zhang Dongliang, Zhang Wenqiang, Zhou Tong. Evaluation of Carbonate Reservoir Based on Residual Karst Intensity Characterization and Structural Fracture Prediction:A Case from the Upper Ordovician Lianglitage Formation in the West of Center Tarim Basin [J]. Journal of Jilin University(Earth Science Edition), 2015, 45(1): 25-36.
[13] Wang Jianmin,Wang Jiayuan,Sha Jianhuai,Guo Deyun,Gao Hairen,Nie Wujun,Qin Rui. Karst Paleogeomorphology and Comprehensive Geological Model of the Ordovician Weathering Crust in the Eastern Ordos Basin [J]. Journal of Jilin University(Earth Science Edition), 2014, 44(2): 409-418.
[14] Du Shanghai，Su Xiaosi, Zheng Liange. Self-Repair Capacity Assessment of Shallow Aquifer Under Natural Condition After the Carbon Dioxide Leakage Stopped [J]. Journal of Jilin University(Earth Science Edition), 2013, 43(6): 1980-1986.
[15] FENG Cai-xia, BI Xian-wu, WU Li-yan, ZOU Zhi-chao, TANG Yong-yong. Significance and Characteristics |of |REE Geochemistry in Calcite in the Eastern Ore Belt of the Baiyangping Poly-Metallic Metallogenic Province, Northwestern Yunnan Province, China [J]. J4, 2011, 41(5): 1397-1406.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright © Journal of Jilin University(Earth Science Edition), All Rights Reserved.
Tel: +86-431-88502374；13756165364　E-mail: xuebao1956@jlu.edu.cn
Powered by Beijing Magtech Co. Ltd