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                            井底式三條黑影強制箭形止回閥
                            發布時間:2014-8-27 8:52:22 閱讀:2101次 【字體:

                            箭形止回閥是一種連接╳於鉆頭與鉆鋌問題就出在之間的防噴裝置,主要針對在高壓鉆井過程中溢流、井噴▂現象而設計。其作用是有效節制高壓油氣從々鉆具內噴出,保證人員和井下安全,為後期井下復雜情況的處理提供保障。

                             

                            基本參數:

                            型號

                            連接扣型

                            連接工具種類

                            JZ-B229/70或35

                            730×730 630×730

                            9"鉆鋌

                            JZ-B203/70或35

                            630×630

                            8"鉆鋌

                            JZ-B165/70或35

                            430×410 430×4A10

                            61/2"鉆鋌

                            JZ-B121/70或35

                            330×310

                            43/4"鉆鋌

                            JZ-B178/70或35

                            520×521

                            51/2"鉆桿

                            JZ-B165/70或35

                            410×411

                            5"鉆桿

                            JZ-B121/70或35

                            310×311

                            31/2"鉆桿

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