GB 5751-1986
Replaced
GB/T 24504-2025
Active
National standards
GB/T 24504-2025 Method of injection/falloff well test for coalbed methane well
GB/T 24504-2025 Method of injection/falloff well test for coalbed methane well
Basic Information
Standard Code:
GB/T 24504-2025
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Solid fuel mine
ICS Name:
\nCoal
Publish Date:
2025-08-01
Implement Date:
2026-02-01
Pages:
20 pages
Scope
This document specifies the technical content including the method outline for injection/pressure decline testing of coalbed methane wells, instrumentation and equipment, test design, implementation procedures, data recording and collection, interpretation of test data, and test report preparation.
This document is applicable to test wells conducted during the drilling process or after completion of coalbed methane wells.
Development Information
Replace the following standards
Referenced Standards
GB/T 17745-1999 Petroleum and natural gas industries—Care and use of casing and tubing
GB/T 17745-2011 Petroleum and natural gas industries—Care and use of casing and tubing
GB/T 31537-2015 Terms relating to coalbed methane(coal mine gas)
DZ/T 0250-2010 Specifications for coalbed methane drilling engineering
Related Standards
GB 481-1993
abolished_transferred
GB 481-1993 Sampling method of coal sample for production
GB/T 15223-1994
Replaced
GB/T 15223-1994 Plastics—Liquid resins—Determination of density by the pyknometer method
GB/T 15224.1-1994
Replaced
GB/T 15224.1-1994 Classification for quality of coal—Classification for ash yield of coal
GB/T 15224.2-1994
Replaced
GB/T 15224.2-1994 Classification for quality of coal—Classification for sulphur content of coal
GB/T 15224.3-1994
Replaced