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GB/T 41025-2021: Guidelines for disposal of abandoned coalbed methane well
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 41025-2021 | English | 269 |
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Guidelines for disposal of abandoned coalbed methane well
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GB/T 41025-2021
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PDF similar to GB/T 41025-2021
Standard similar to GB/T 41025-2021 GB/T 26127 GB/T 35064 GB 34170 GB/T 41031 Basic data | Standard ID | GB/T 41025-2021 (GB/T41025-2021) | | Description (Translated English) | Guidelines for disposal of abandoned coalbed methane well | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D20 | | Word Count Estimation | 13,156 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 41025-2021: Guidelines for disposal of abandoned coalbed methane well---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.
Guidelines for disposal of abandoned coalbed methane well
ICS 73:040
CCSD20
National Standards of People's Republic of China
Guidelines for Disposal of Abandoned CBM Wells
Published on 2021-12-31
2022-07-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
directory
Preface I
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 General principles 1
5 CBM Abandoned Well Plugging Operation 1
6 Construction and acceptance 5
7 Safety and environmental protection requirements5
8 Quality evaluation5
9 Record Archives 5
Appendix A (Informative) Design Report Form for Plugging and Disposal Engineering of CBM Abandoned Wells 6
Appendix B (Informative) Table Format of Basic Data for CBM Abandoned Well Plugging Operations
foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents"
drafted:
Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents:
This document is proposed by China Coal Industry Association:
This document is under the jurisdiction of the National Coal Standardization Technical Committee (SAC/TC42):
This document is drafted by: Shanxi Lanyan Coalbed Methane Group Co:, Ltd:, State Key Laboratory of Co-mining of Coal and CBM, Shanxi Lanyan
Coalbed Methane Engineering Research Co:, Ltd:
The main drafters of this document: Wang Yuhong, Chen Zhaoying, Guo Shengqiang, Bai Jianping, Mi Baichao, Zhang Diankun, Yang Changyong, Zhao Zhiyou, Wang Yupeng,
Zhou Wenlong, Yin Zhinan, Qin Hui:
Guidelines for Disposal of Abandoned CBM Wells
1 Scope
This document provides the general principles, plugging operations, construction and acceptance, safety and environmental protection requirements, quality evaluation and records for the disposal of abandoned coalbed methane wells:
Guidelines for recording archives, etc:
This document is applicable to the disposal operations of vertical and directional wells of coalbed methane:
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document:
GB/T 31537 Coalbed Methane (Coal Mine Gas) Terms
SY/T 5587:5 Conventional well workover procedures - Part 5: Wellbore preparation for downhole operations
SY/T 5587:14 Conventional well workover procedures - Part 14: Injection plugs and drill plugs
SY/T 6646 Guidelines for Disposal of Abandoned Wells and Long Stopped Wells
3 Terms and Definitions
GB/T 31537 and the following terms and definitions apply to this document:
3:1
Abandonedcoalbedmethanewel
CBM wells that cannot be reused due to geological, engineering, economic, coal mining and environmental factors in the process of surface exploration and development of CBM:
Note: It includes wells that have accidents and can no longer be dealt with, wells that are no longer producing after exploration, wells that fail to achieve expected benefits, and wells that have ended their gas production life, etc:
4 General principles
4:1 Reasonably dispose of coalbed methane abandoned wells to prevent potential safety hazards and environmental pollution caused by unreasonable disposal:
4:2 Isolate the hydraulic connection between the target layer of the CBM well, the aquifer and surface water, and prevent the water caused by the mutual channeling of formation fluids in different layers:
Resource pollution:
4:3 Disposal of abandoned coalbed methane wells within the scope of coal mine rights should ensure safe mining of coal mines and prevent formation fluids from entering the coal seam through the wellbore
lead to coal mine safety accidents:
4:4 Landform restoration shall be carried out on well sites that are no longer planned and constructed after the disposal of abandoned coalbed methane wells to meet the requirements of reclamation and greening:
5: CBM Abandoned Well Plugging Operation
5:1 Design
Before plugging and disposing of abandoned coalbed methane wells, an engineering design report should be prepared, and the required data and design styles are shown in Appendix A:
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