The Gunners currently sit fifth on the table, two points behind fourth-placed Chelsea, and Wenger believes his side are in good enough form to oust their London rivals.
"I'm very happy because it keeps our momentum going. The confidence looks to be there, and you could see when the confidence is there, we can play quality football," he told the club's official website.
"Let's keep that spirit, that attitude, that confidence, and we have a great chance. We want to do it and I'm confident we will.
"We had a good performance. We were technically sound and had a good balance between mastering the possession and being incisive."