Exhibit 3.52

CERTIFICATE OF INCORPORATION OF A PRIVATE LIMITED COMPANY Company Number 8524375 The Registrar of Companies for England and Wales, hereby certifies that ENSCO DEEPWATER DRILLING LIMITED is this day incorporated under the Companies Act 2006 as a private company, that the company is limited by shares, and the situation of its registered office is in England and Wales. Given at Companies House, Cardiff, on 10th May 2013. The above information was communicated by electronic means and authenticated by the Registrar of Companies under section 1115 of the Companies Act 2006 1 c;J ··· ····· . . : : ! : . . ... ,,... . Companies House - for the record - ~ROFco ," ~,, & ti)" '4 ... ... "' ~ : : r./l . . .., • • "1 0 ••••• • •• •• ::} 1' ••••••• '<" <.<'>1,: "' Oz-'IND p..~~ THE OFFICIAL SEAL OF THE REGISTRAR OF COMPANIES