Paul, you have brought up this question concerning Satan's presence being with us in heaven or not after the "rapture"!
 
Sherry Vance gave you a good answer.  But I will offer to you and the rest here again an article that not only addresses the question of Satan's presence or not, but also that of the 2 witnesses!  And the change in appearance of Jesus Christ from before the rapture in Rev 1-3 to after in chapter 4. 
 
You can find the article titled " Conspicuously Missing!"
 in the charts and commentaries area of the website;
 
www.godstimeline.net
 
In looking for Christ's SOON coming and Kingdom;
 
Phil Rogers