A.先發(fā)出報(bào)警信號(hào)(一聲長(zhǎng)鳴笛)
B.在打開(kāi)液動(dòng)放噴閥之前,發(fā)出關(guān)井信號(hào)(兩聲短鳴笛)
C.在打開(kāi)液動(dòng)放噴閥之后,發(fā)出關(guān)井信號(hào)(兩聲短鳴笛)
D.司鉆得到鉆井監(jiān)督或值班干部開(kāi)井通知后,在開(kāi)井前打開(kāi)井信號(hào)(三聲短鳴笛)
E.司鉆得到鉆井監(jiān)督或值班干部開(kāi)井通知前,在開(kāi)井后打開(kāi)井信號(hào)(三聲短鳴笛)