A.下防砂管柱→充填礫石→起防砂管柱→下生產(chǎn)管柱投產(chǎn)
B.下防砂管柱→充填礫石→反洗井→起防砂管柱→下生產(chǎn)管柱投產(chǎn)
C.起出橋塞→下防砂管柱→充填礫石→反洗井→丟開防砂管→起出防砂工作管柱→下生產(chǎn)管柱投產(chǎn)
D.下防砂管柱→充填礫石→反洗→丟開防砂管→起出防砂工作管柱→下生產(chǎn)管柱投產(chǎn)

A.洗井→探砂面沖砂→通井→刮削→洗井→放橋塞→光油管擠壓填砂→探砂面沖砂
B.通井→刮削→洗井→填砂→探砂面沖砂
C.洗井→探砂面沖砂→通井→刮削→洗井→填砂→探砂面沖砂
D.洗井→探砂面沖砂→刮削→放橋塞→填砂→探砂面沖砂