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| Chinese National Standard Category: Petroleum drilling |
| English Title: | Encapsulating agent PAC141 and fluid loss reducers PAC142/PAC143 for drilling fluids |
| Chinese Title: | 钻井液用包被剂PAC141、降滤失剂PAC142、降滤失剂PAC143 |
| Standard No.: | SY/T 5660-1995 |
| Category No.: | E13 |
| Issued by: | China National Petroleum Corporation |
| Issued on: | 1995-7-13 |
| Implemented on: | 1995-12-20 |
| Status: | superseded |
| Superseded by: | SY/T 5660-2020 Macromolecular flocculants used in drilling fluid-Polyacrylamide |
| Superseded on: | 2021-2-1 |
| Abolished on: | |
| Superseding: | SY 5667-1993 钻井液用乙烯基单体多共聚物PAC143 |
| Word Count: | 6000 words |
| Similar Standards: | SY/T 5731-2025 GB/T 33294-2025 GB/T 16783.1-2025 GB/T 31033-2014 NB/T 10843-2021 NB/T 11332-2023 NB/T 11282-2023 DZ/T 0365-2021 NB/T 10841-2021 GB/T 41029-2021 SY 5665-1993 SY 5667-1993 SY 5666-1993 SY 5661-1993 SY 5623-1993 GB/T 8423.2-2018 SY/T 5479-1992 SY/T 5347-1997 SY/T 5660-1995 SY/T 5412-1996 |
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