gravel pack

基本解釋

The problems of gravel pack, cementing and perforation are dwelled upon in special.
特別對礫石充填、固井和射孔等方麪的問題作了較詳細的討論。
Step one is to grout with low grouting pressure to fill the gravel pack interval and blocked the channels which relieves the grouting pressure in the shallow surrounding rock.
“一步”低壓注漿充填壁後散躰狀碎石充填層，堵塞淺部圍巖泄壓通道；
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The effect of gravel packing in screen casing annular and perforations on the well productivity can be shown by gravel pack productivity ratio, which can be calculated by the additional skin factor.
計算射孔孔眼礫石層及環(huán)空礫石層的附加表皮因數(shù)，用礫石充填後産能比考慮砲眼和篩套環(huán)空礫石充填對産能的影響；