I don't believe you have grounds for annulment. A regular petition for dissolution of marriage will be appropriate here. Consult with your immigration attorney to determine what the ramifications will be on your status.
THESE COMMENTS ARE NOT LEGAL ADVICE. They are provided for informational purposes only. Actual legal advice can only be provided after consultation by an attorney licensed in your jurisdiction. Answering this question does not create an attorney-client relationship or otherwise require further consultation.
You may have grounds for an annulment if you did not consummate the marriage. You may want to consult an attorney about the different grounds for an annulment and see if you meet any of the criteria.