Can I write the same text in method section in two different project?
Reusing the text from a previous paper in a new paper is a form of "self-plagiarism" that publishers are increasingly unwilling to accept.  It's true that this was a relatively common practice in the past, but the advent of plagiarism detection software has made this practice visible and publishers are starting to crack down on it.  

One reason for this is that publishers want to publish "original" content and not repeat previously published material.  Another reason for this is that publishers want to avoid violating copyrights owned by other publishers- the publisher of the first paper could easily sue the publisher of the second paper for copyright violation.  

The way things now, chances are that when you submit the later paper you'll have it sent back to you with instructions to remove the self-plagiarism before the journal will review the paper.