This standard specifies the evaluation requirements for produced-water reinjection well and reinjection layer in natural gas field, recommended water quality indexes, detection analysis method for up-to-standard reinjection water quality and recommended water quality treatment process & method.
This standard is applicable to sewage discharge and reinjection of produced-water in sandstone and carbonate natural gas field.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this standard. However parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 6920 Water Quality - Determination of pH Value - Glass Electrode Method
GB/T 11901 Water Quality - Determination of Suspended Substance - Gravimetric Method
GB/T 16488 Water Quality - Determination of Petroleum Oil, Animal and Vegetable Oils - Infrared Photometric Method
SY/T 5329 Water Quality Standard and Practice for Analysis of Oilfield Injecting Waters in Clastic Reservoirs
