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Chinese Standard: 'DZT0216-2002'
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Standard ID DZ/T 0216-2002 (DZ/T0216-2002)
Description (Translated English) Specifications for coalbed methane resources/reserves
Sector / Industry Geological Industry Standard (Recommended)
Classification of Chinese Standard D04
Classification of International Standard 73.020; 75.160.01
Word Count Estimation 18,172
Date of Issue 2002/12/17
Date of Implementation 2003/3/1
Regulation (derived from) Guo Tu Zi Fa [2002] 410; Ministry of Land & Resources Notice (2011. 01. 13)

DZ/T 0216-2002 (Tracked version)
[Tracked version. Text in RED indicates the main differences with DZ/T0216-2010]
ICS 73.020; 75·160·01
D 04
for coalbed methane resources / reserves
Issued by. Ministry of Land and Resources
of the People's Republic of China
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 General provisions ... 5 
4 Definitions ... 5 
4.1 Coalbed methane ... 5 
4.2 Coalbed methane resources ... 5 
4.3 Coalbed methane exploration ... 6 
4.4 Coalbed methane development ... 7 
5 Classification and grading of coalbed methane resources / reserves ... 7 
5.1 Classification and grading principles ... 7 
5.2 Classification ... 7 
5.3 Grading... 8 
5.4 Classification and grading system of coalbed methane resources / reserves ... 9 
6 Calculation of coalbed methane resources / reserves ... 11 
6.1 Reserves initial-calculation conditions and calculation units ... 11 
6.2 Reserves calculation method ... 13 
7 Selection and value of coalbed methane resources / reserves calculation
parameters ... 17 
7.1 The determination of volumetric method parameters ... 17 
7.2 Determination of parameters of numerical simulation method and production decline
method ... 20 
7.3 Parameters values of reserves calculation ... 20 
8 Coalbed methane reserves evaluation ... 21 
8.1 Geological comprehensive evaluation ... 21 
8.2 Economic evaluation ... 22 
8.3 Reserves report ... 23 
Appendix A ... 24 
Appendix B ... 26 
Appendix C ... 27 
C.1 Text of the report ... 27 
C.2 Attaching figures and tables of report ... 27 
C.3 Report attachments ... 28 
for coalbed methane resources / reserves
1 Scope
This Standard specifies the classification and grading standard, definitions,
reserves calculation methods, reserves evaluation standard, and preparation
requirements for reserves report of China's coalbed methane resources /
This Standard is applicable to the ground-drill-development’s mine’s coalbed
methane resources / reserves calculation; it is applicable to coalbed methane
resources exploration, reserves calculation, development and design, and
report preparation. It may be used as basis for the coalbed methane resources
/ reserves ownership transfer, securities trading, reserves assessment in other
public service and commercial mining activities.
2 Normative references
The following standards contain the provisions which, through reference in this
Standard, constitute the provisions of this Standard. For dated references,
subsequent amendments (excluding corrections) or revisions do not apply to
this Standard. However, the parties who enter into agreement based on this
Standard are encouraged to investigate whether the latest versions of these
documents are applicable. For undated reference documents, the latest
versions apply to this Standard.
GB 212-91 Proximate analysis of coal
GBn/T 270-88 Natural gas reserves specification
GB/T 13610-92 Analysis of natural gas by gas chromatography
Reserves-Release [1986] No. 147 Specification of geological exploration of
coal resources
MT/T 77-94 Determination method of coalbed methane (desorption)
3 General provisions
3.1 The coalbed methane field (reserves) reservoir is heterogeneous. There
exists the differences in gas content and capacity etc. It shall be appropriate to
carry out rolling exploration-development. It shall conduct dynamic reserves
assessment. From discovery to abandoned stages of exploration and
development, its operator shall - according to geological changes, changes in
engineering data, technical and economic conditions or policies - conduct
reserves evaluation, calculation, double-calculation, and business accounting
in phrases.
3.2 Coalbed is the reservoir for coalbed methane. Coal field exploration and
awareness degree is not only an important foundation for coalbed methane
exploration deployment, but also an important basis for coalbed methane
resources / reserves evaluation.
4 Definitions
4.1 Coalbed methane
The hydrocarbon gas of which the main component is methane; it is mainly
absorbed to the particle surface of the coal matrix, and is partially dissociated
in pores or dissolved in coalbed water.
4.2 Coalbed methane resources
4.2.1 Definition
Coalbed methane concentration that takes underground coal as reservoir and
has economic significance. The amount is represented as resources amount or
reserves amount.
4.2.2 Coalbed methane resources
The total amount of coalbed methane which is occurred in coalbed, according
to the estimation by certain geological and exploration engineering basis; is
recoverable in current time or future; and has the realistic economic significance
and potential economic significance.
4.2.3 Original coalbed methane in place of coalbed methane Definition
4.3.3 Exploration
It refers to the actual implementation phase of coalbed methane exploration
when implementing the project of coalbed methane exploration in the
evaluation selection to obtain the awareness on the nature of coal and gas
content by parameter-well or geophysical engineering, so as to obtain coalbed
methane’s capacity and well optimization parameters under technical
conditions by single-well and/or small well-network development tests. Coalbed
methane reserves can be calculated according to exploration results.
4.4 Coalbed methane development
It refers to formal mining activities of coalbed methane resources according to
certain developing plans and deployment of development well-network with
certain well spacing in the exploration area. Coalbed methane is generally
suitable for rolling exploration and development.
5 Classification and grading of coalbed methane
resources / reserves
5.1 Classification and grading principles
The classification of coalbed methane resources / reserves is determined by
economic benefits yielded by production and sales in certain policies, laws, time
and environmental conditions. Based on the economic feasibility, it is divided
into 3 categories - commercial, sub-commercial, and intrinsic commercial.
economic evaluation of the project. The classification shall be based on the
principle of geological understanding level of coalbed methane resources.
Based on exploration and development proj......
Related standard:   DZ/T 0216-2020  DZ/T 0275.1-2015
Related PDF sample:   GB/T 2007.2-1987  GB/T 2007.6-1987
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