I have been checking my writing in Grammarly and correcting my grammar using the Free Plan. But there are some warnings that can only be fixed using the Premium Plan. One thing that is bugging me a lot is the warning of "Passive Voice Misuse" in this sentence. What would be the proper usage of passive voice in this sentence? And why is Grammarly considering it as an error?
The sentence is as follows:
The well is divided into three sections as surface (0 to 4,000 ft), intermediate (4,000 to 13,290 ft), and production (13,290 to 20,000 ft) sections considering casing design, which
was mentionedin the first chapter.