Abstract:

Through theoretical calculation and in-door sanding simulation,the ways producing with limited sanding are studied from the aspects of formation sanding,sand-controlling near well bore and production with sand in well bore.The results show that formation sanding can improve the physical properties,sanding 1% in different grain size,permeability increases by some 20%,and fine sands（<39μm）contribute to the increase of permeability the most,by 21.07%~37.06%.Sand accumulation in screen pipe and annulus impacts deliverability badly,the deliverability will increase 1.71 times when there are no sands in annulus,but only 14.7% when annulus is filled with sands,can the sanding be carried out well bore only when the flow velocity of fluid is greater than or equal to the sinking speed of sands.The production way is successfully applied in Bohai in heavy Oilfield operation.

Key words: reasonable sand production, deliverability, permeability, sand controlling method, sand-carrying, heavy oil, Bohai