提高浅层稠油油藏开发效果

Enhancing development efficiency in shallow heavy oil reservoir.

胜坨油田胜二区、胜三区东一段、东二段稠油油藏埋藏浅、岩性疏松、水敏严重。 1996年应用PS地层防砂技术 ,螺杆泵、螺杆泵加电加热杆采油工艺 ,依靠油藏天然能量开采了该油藏 ,原油产量迅速上升。 1996年产油 876 3t,1997年产油 5 .7× 10 4 t,1998年产油 12 .8× 10 4 t。 1999年控水稳油取得阶段成果 ,自然递减控制在 17.6 % ,综合含水降至 48.4%。根据测井划分的沉积相确定防砂工艺 ,也取得了初步成果。

Heavy oil reservoir in Ed 1 and Ed 2 of Sheng 2, Sheng 3 area of Shengtuo oil field has shallow burial, loose lithology and serious water sensitivity. The reservoir natural energy made the oil production increase rapidly by using recovery technologies of PS sand control, screw pump and screw pump?electric heating rod. Oil production was 8763t, 5.7×10 4t, 12.8×10 4t in 1996,1997 and 1998 respectively. The effect of stabilizing oil production by water control was achieved in 1999 with 17.6% natural decline rate and 48.4% composite water cut. Sand control technology may be determined according to the classified log sedimentary facies and has got initial results.