Page 270 - Drilling Technology in Nontechnical Language
P. 270

Chapter 11 – WELL CONTROL                                        261






































                 Fig. 11–3. Pair of  xed pipe rams






























                 Fig. 11–4. A variable pipe ram






        _Devereux_Book.indb   261                                                 1/16/12   2:12 PM
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