In Mahu depression of Baikouquan formation with low porosity and low permeability reservoir thickness,oil and gas shows at the top.There are lithology and stress shielding layer in the underpart of the reservoir,and the fracture tends to extend downward in the fracturing,the proppant is easy deposits in the lower part of the reservoir.In recent years,for the effective use of thick reservoirs,the technology of secondary sand fracturing and soluble fiber suspension and combination of bottom laying sand control is carried out.Through the continuous improvement of reservoir reconstruction technology,the effective use of high quality reservoirs has been realized.It shows that the bottom sand laying technology of combined process and soluble fiber suspension sand technology is better than that of the secondary sand fracturing.D13 well adopts combination technology to control bottom sand laying technology,the highest daily production oil is 40.55 cubic meters per day,Nissan gas is 3070m3,that productivity test is 165 days,accumulated oil production 2083.11m3.It has realized the effective transformation of reservoir.%针对玛湖凹陷百口泉组低孔低渗储层厚度大,且油气显示主要在顶部,下部砂层无高应力遮挡层,压裂改造中裂缝易向下延伸,支撑剂沉降于储层下部等特点.近几年,对于较厚储层的有效动用开展了从二次加砂,到可溶纤维悬砂,以及组合工艺控底铺砂技术.通过不断的完善储层改造工艺技术,实现了优质储层的有效动用.现场研究结果表明,采用组合工艺控底铺砂技术和可溶纤维悬砂技术比二次加砂技术对储层改造的效果更加明显,其中D13井采用组合工艺控底铺砂技术最高日产油40.55m3·d-1,日产气3.07×10-3 m3,试油165d,累计产油2083.11m3,实现了储层的有效改造.
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