TANGERANG, Indonesia, July 25 (Reuters) - Italy's Eni will sign a deal with Chevron Corp later on Tuesday to take over the U.S. firm's stake in the Indonesia Deepwater Development project, the head of Indonesia's upstream oil and gas regulator said.

The deal will be signed at 9:30 am UK time, SKK Migas chief Dwi Soetjipto told Reuters on the sidelines of the Indonesia Petroleum Association conference.

(Reporting by Fransiska Nangoy; Editing by Kim Coghill)