Conventional drilling

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Managed pressure drilling: Constant bottomhole pressure (CBHP) – Pressurized mud cap drilling (PMCD) for Thang Long JOC well HSD-BM-6P

Managed pressure drilling: Constant bottomhole pressure (CBHP) – Pressurized mud cap drilling (PMCD) for Thang Long JOC well HSD-BM-6P present the content: introduction to MPD, MPD variants, pressurized mud cap drilling (PMCD), constant bottomhole pressure (CBHP), 8.5” hole preparation and strategy, 8.5” hole decision chart, making a connection,...

40p bachkhinhdaluu 03-12-2021 11 1 Download

Experimental investigation on friction drilling of titanium alloy

Friction drilling is a green hole-making process that zealously utilizes the heat generated from the friction between the rotating conical tool and workpiece to create a bushing without generating chip. The difficult-to-machine materials with unique metallurgical properties have been developed to meet the demands of extreme applications.

8p tohitohi 19-05-2020 11 1 Download