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DZ/T 0216-2010

Chinese Standard: 'DZ/T 0216-2010'
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Detail Information of DZ/T 0216-2010; DZ/T0216-2010
Description (Translated English): Specifications for coalbed methane resources/reserves
Sector / Industry: Geological Industry Standard (Recommended)
Classification of Chinese Standard: D03
Classification of International Standard: 73.020; 75.160.01
Word Count Estimation: 21,238
Date of Issue: 2011-01-13
Date of Implementation: 2011-03-01
Older Standard (superseded by this standard): DZ/T 0216-2002
Quoted Standard: GB/T 212-2008; GB/T 217-2008; GB/T 6949-1998; GB/T 13610-2003; GB/T 19492-2004; GB/T 19559-2008; GB/T 19560-2008; DZ/T 0215-2002; DZ/T 0217-2005
Drafting Organization: Land and Natural Resources Research Center of Consultation
Administrative Organization: National Standardization Technical Committee of Geology of Mineral
Regulation (derived from): ?Ministry of Land and Resources Announcement (2011.01.13)
Summary: This standard specifies the country of coalbed methane resources/reserves grading standards and definitions, preparation of required reserves evaluation criteria and reserves reporting, reserves estimation methods. This standard applies to ground exploration and exploitation of coalbed methane resource/reserve estimate and report writing, as coalbed methane resources/reserves management, mining economic activities in resource/reserve estimation assessment, development programs and long-term planning basis. CBM resources in the regional surveys, resource assessment, or other means of exploration and exploitation of coalbed methane resource/reserve estimation and reporting to write implementation.

DZ/T 0216-2010
DZ
ICS T3-020; T5.160.01
D 03
Record number. (NIL)
Geological Mineral Industry Standard
of the People’s Republic of China
Replacing DZ/T 0216-2002
Specifications
for coalbed methane resources / reserves
煤层气资源/储量规范
ISSUED ON. JANUARY 13, 2011
IMPLEMENTED ON. MARCH 1, 2011
Issued by. Ministry of Land and Resources of the People's Republic of
China
Table of Contents
Foreword ... 3 
Introduction ... 4 
1  Scope ... 5 
2  Normative references ... 5 
3  Terms and definitions ... 5 
4  General provisions ... 8 
5  Classification and grading of coalbed methane resources / reserves ... 8 
5.1  Classification ... 9 
5.2  Grading ... 9 
6.  Estimates of coalbed methane resources / reserves ... 10 
6.1  Reserves initial-calculation conditions and estimate units ... 11 
6.2  Reserves estimation method ... 14 
7  Selection and value of coalbed methane resources / reserves estimation
parameters ... 18 
7.1  The determination of volumetric method parameters ... 18 
7.2 Determination of parameters of numerical simulation method and production decline
method ... 21 
7.3  Parameters values of reserves estimation ... 21 
8  Coalbed methane reserves evaluation ... 22 
8.1  Geological comprehensive evaluation ... 22 
8.2  Economic evaluation ... 23 
8.3  Proved reserves report ... 25 
Appendix A ... 26 
Appendix B ... 28 
Appendix C ... 30 
Introduction 
The coalbed methane is an important clean energy. The development of specifications of
coalbed methane resources / reserves, that is suitable for our national conditions and
compatible with international standards, can promote the reasonable utilization; prevent
the disaster of gas of coal mine; and prevent atmospheric environment of coalbed
methane resource, under the situation of the reform and opening-up policy. In order to
adapt the needs of exploration, development and resources / reserves management of
coalbed, Ministry of Land and Resources issued Specifications for Coalbed Methane
Resources / Reserves (DZ/T 0216-2002) in the form of geological mineral industry
standard of the People’s Republic of China on December 17, 2002. It will be put into effect
on March 1, 2003. After more than 7 years of implementation, this specifications has
played a role in promoting the development of coalbed methane; in the meanwhile, it also
exposes some shortcomings.
On January 29, 2008, the Consulting and Research Center of the Ministry of Land and
Resources Entrust Department conducted a study, and revised the specifications to be
this Standard.
From the implementation date of this Standard, the previous standard shall be abolished
simultaneously.
SN/T 2034-2007
Specifications
for coalbed methane resources / reserves
1  Scope 
This Standard specifies the classification and grading standard, definitions, reserves
estimation methods, reserves evaluation standard, and preparation requirements for reserves
report of China's coalbed methane resources / reserves.
This Standard is applicable to the ground-exploited-mine’s coalbed methane resources /
reserves assessment and report preparation. It may be used as basis for the coalbed
methane resources / reserves estimation review, the preparation of development program
and medium-term and long-term planning in the coalbed methane resources / reserves
management and mining economic activities. Regional survey and resources evaluation for
coalbed methane resources, or resources / reserves estimation and report preparation of for
exploitation and exploitation of coalbed methane by other means can be executed by
reference.
2  Normative references 
The articles contained in the following documents have formed this Standard when they are
quoted herein. For the dated documents are quoted, all the modifications or revisions made
thereafter shall be applicable to this Standard.
GB/T 212-2008 Proximate analysis of coal
GB/T 217-2008 Determination of true relative density of coal
GB/T 6949-1998 Determination of apparent relative density of coal
GB/T 13610-2003 Analysis of natural gas by gas chromatography
GB/T 19492-2004 Classifications for petroleum resources / reserves
GB/T 19559-2008 Method of determining coalbed’s gas content
GB/T 19560-2008 Experimental method of high-pressure isothermal adsorption to coal
DZ/T 0215-2002 Specifications for coal, peat exploration
DZ/T 0217-2005 Regulation of petroleum reserves estimation
3  Terms and definitions 
The following terms and definitions apply to this Standard.
3.1
SN/T 2034-2007
Coalbed methane (referred as CBM)
The hydrocarbon gas of which the main component is methane; it is absorbed in the coalbed;
the original state is mainly absorbed to the particle surface of the coal matrix, and is
supplemented and dissociated in cleats, cracks and pores or dissolved in coalbed water. This
Standard specifies that the required estimating resources / reserves mainly refers to adsorbed
gas.
3.2
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.
According to with- and without- prospecting-well engineering control, it is divided into the
known reserves and potential reserves to be discovered.
3.3
Coalbed methane reserves
3.3.1
Original coalbed methane in place
Under the original state, the total coalbed methane which is occurred in the known coalbed
with a clear estimation boundary; has realistic economic significance. According to
exploration degree, it is divided into 3 levels - forecasted, controlled, and proved.
3.3.2
Recoverable reserves
The recoverable part of the original coalbed methane in place. It refers to using the existing
technologies and theoretical estimation or analogy to calculate the recoverable total coalbed
methane, under the current laws and policies and market conditions. It is divided into
“controlled” and “proved” levels, according to exploration degree.
For recovery-rate parameter, it may be obtained by adopting the methods such as analogy
and numerical simulation of the same domestic or foreign geological conditions.
3.3.3
Commercial recoverable reserve
It is part of the recoverable reserves. It refers to using methods such as theoretical estimation
or analogy to calculate the recoverable total coalbed methane, under the current economic
and technical conditions. It can be divided into the “controlled” and the “proved” levels,
SN/T 2034-2007
according to exploration degree.
3.3.4
Developed initial reserves
The proved commercial recoverable reserves that is consumed by the corresponding
cumulative production. Generally it may be obtained by using the cumulative production to be
divided by recovery-rate.
3.3.5
Remainder proved initial reserves (referred as remainder reserves)
The difference BETWEEN proved commercial recoverable reserves AND developed initial
reserves is the remainder proved initial reserves. Remainder proved initial reserves are
divided into “built capacity remainder commercial recoverable ......
   
 
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