What does the water content of crude oil mean?

The water content of crude oil is the key data in oil exploitation, transportation and trade. On-line measurement of water cut in oil wells is of great significance to the construction of digital oil fields such as water production, oil production level, crude oil production estimation, oil well development life prediction, oil well production quality control, oil well condition detection and water injection operation. ?

The water content measurement of wellhead crude oil in domestic oil fields mostly adopts manual sampling measurement method. This method relies heavily on the representativeness of sampling points and the reliability of manual operation, and the measurement results are affected by many factors, so it is not suitable for well conditions with frequent water cut changes, which is time-consuming and laborious. Manual sampling measurement method can not be used for real-time measurement of online measurement system and can not meet the requirements of automatic management of oilfield production. There are great limitations in determining water injection scheme, calculating crude oil production and predicting oil well development life.