GB/T 43125-2023 English PDF

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GB/T 43125-2023: Specification for productivity evaluation of shale oil
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Basic data

Standard ID: GB/T 43125-2023 (GB/T43125-2023)
Description (Translated English): Specification for productivity evaluation of shale oil
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: E11;D28
Classification of International Standard: 75.010; 75.020
Word Count Estimation: 18,193
Date of Issue: 2023-09-07
Date of Implementation: 2024-01-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 43125-2023: Specification for productivity evaluation of shale oil

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 75.010;75.020 CCSE11;D28 National Standards of People's Republic of China Technical specifications for shale oil productivity evaluation Published on 2023-09-07 2024-01-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration Committee

Table of contents

PrefaceⅠ 1 Scope 1 2 Normative reference documents 1 3 Terms and Definitions 1 4.Fracturing stimulation shale oil production capacity evaluation 1 4.1 Applicable conditions for evaluation methods 1 4.2 Analytical method 1 4.3 Decreasing method 2 4.4 Numerical simulation method 2 4.5 Analogy 3 5 Evaluation of in-situ conversion shale oil production capacity 3 5.1 Applicable conditions for evaluation methods 3 5.2 Dynamic reservoir numerical simulation method 3 5.3 Analogy 4 6 Main results submitted 4 6.1 Fracturing-stimulated shale oil 4 6.2 In-situ conversion shale oil 5 Appendix A (Normative) Fracturing Stimulated Shale Oil Production Capacity Evaluation Model 6 A.1 Data collection and processing6 A.2 Capacity Evaluation Model 6 A.3 Residual evaluation and model optimization principles 10 Appendix B (Normative) Productivity evaluation of in-situ conversion shale oil dynamic reservoir numerical simulation method 12 B.1 Dynamic reservoir numerical model and parameters12 B.2 Dynamic reservoir numerical simulation method productivity evaluation12

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents. This document is proposed and coordinated by the National Petroleum and Natural Gas Standardization Technical Committee (SAC/TC355). This document was drafted by. PetroChina Exploration and Development Research Institute, Sinochem Petroleum Exploration and Development Co., Ltd., Offshore Oil Research Institute Co., Ltd., China Petroleum & Chemical Corporation Petroleum Exploration and Development Research Institute, China National Petroleum Corporation Co., Ltd.’s oil, gas and new energy subsidiaries, China National Petroleum Corporation’s Changqing Oilfield Branch, China Petroleum & Chemical Corporation Si Shengli Oilfield Branch, China National Petroleum Corporation Jilin Oilfield Branch, China National Petroleum Corporation Qinghai Oilfield Branch, China University of Petroleum (East China), Southwest Petroleum University, China National Petroleum Corporation Xinjiang Oilfield Branch, China Petroleum and Natural Gas Co., Ltd. Dagang Oilfield Branch, Daqing Oilfield Co., Ltd., Sinopec Petroleum Engineering Technology Research Institute Co., Ltd. company. The main drafters of this document. Hou Lianhua, Chen Jinsong, Liao Guangzhi, Wu Songtao, Bai Yuhu, Liu Huimin, Zhang Yongshu, Wang Xiaojun, Lei Zhengdong, Du Yushan, Mao Xinjun, Zhou Zhiping, Pu Xiugang, Jiang Tao, Yu Zhichao, Tao Cheng, Qin Jianhua, Yang Weili, Guo Jianchun, Feng Qihong, Pang Wei, Zhao Jian, Jiang Xiaohua, Zhao Zhongying, Luo Xia, Tang Zhenxing, Han Xuehui, Diao Haiyan, Li Siyuan, Nie Hongfang, Pang Zhenglian, Lin Senhu, Mi Jingkui, Liao Fengrong, Yu Cong, Zhou Chuanmin, Huang Xiu, Zhang Lijun. Technical specifications for shale oil productivity evaluation

1 Scope

This document stipulates the shale oil production capacity evaluation parameters, evaluation methods, evaluation process and main results to be submitted. This document is applicable to the productivity evaluation of fracturing-stimulated shale oil and in-situ conversion shale oil.

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document. GB/T 18602 Rock Pyrolysis Analysis GB/T 19145 Determination of total organic carbon in sedimentary rocks SY/T 5124 Method for determination of vitrinite reflectance in sedimentary rocks

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 The process of evaluating the oil and gas production capabilities of production wells or development well groups at different stages. 3.2 The corresponding production time from when a normal production well or development well group starts to produce oil and gas to when the produced oil equivalent reaches the lower economic limit. 4.Fracturing stimulation shale oil production capacity evaluation 4.1 Applicable conditions for evaluation methods 4.1.1 Depending on the richness of the data, different methods are used to evaluate the productivity of production wells. 4.1.2 When well test data are available, the analytical method should be used. 4.1.3 When the production well has oil and gas production data for more than 12 months, the decline method should be used. 4.1.4 When a numerical model can be established for the evaluated area, numerical simulation method should be used. 4.1.5 When there are no wells drilled or put into production in the evaluated area and the following conditions are met, the analogy method should be adopted. ---The wells to be drilled or not put into production have the same or similar geological conditions, fracturing stimulation technology and intensity as typical wells that have been developed; ---Typical wells that have been developed have oil and gas production data for no less than 12 months. 4.2 Analytical method 4.2.1 Determination of key parameters 4.2.1.1 The key parameters for the analytical productivity evaluation include the effective permeability of the reservoir and fractures, the effective half-length of the fractures, the conductivity of the fractures, and the fracture conductivity. ......

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