NB/T 10427-2020Methods for dynamic liquid level modification and bottom-hole pressure calculation in coalbed methane wells (English PDF)
煤层气井动液面测试修正及井底流压计算方法
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Issued by
NEA
Level / Type
Industry · Recommended
Issue date
October 23, 2020
Implementation date
February 1, 2021
Scope
NB/T 10427-2020 is the English-translated version of 煤层气井动液面测试修正及井底流压计算方法.
NB/T 10427-2020 is a recommended Chinese energy industry standard covering the correction of the dynamic liquid level and the calculation of bottom-hole pressure in coalbed methane wells.
It describes how the bottom-hole flowing pressure is measured and calculated with a dynamic liquid level tester, and it states the requirements that the tester itself has to meet.
It applies to wells under single-layer drainage and production, while wells draining and producing from combined layers may follow it as a reference. SY/T 5166 is the cited standard. Issued on 23 October 2020, it has applied since 1 February 2021.
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Document preview — NB/T 10427-2020
National Standard of the People's Republic of China
- ICS
- 75.020
Issued by: National Energy Administration of the People's Republic of China
Contents
- 2 Normative references
2 Normative references
NB/T 10427-2020 cites the following standards, which apply in full or in part through the references made to them in its clauses.
SY/T 5166
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
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