Emery said: "We are very happy because today we achieved the first thing improving.
"We wanted to play Europa League last year and now we have a new challenge which is to play Champions League.
"Chelsea today showed the power.
"But, we are being consistent in 35 matches to draw at the end is a very good result.
"I want more, of course.
"Chelsea have very good players.
"The result was amazing in the first half. We were defending well and we didn't concede a lot but of course we needed to keep more possession and it is difficult against Chelsea."
On goalscorer Morgan Rogers, he said: "He has been very quick and after we needed him to play more minutes - of course he is helping us out."
On injured players effecting form, Emery also said: "We have to try to keep being consistent with the players we have and I believe in the players.
"After this draw we are now thinking on Thursday against Olympiacos and it will be a tough.
"In Premier League we are fighting with Tottenham for fourth position."