鄂尔多斯盆地西峰区块三叠系长8致密砂岩储层渗透率较低,开发过程中采用水力压裂、注水改造,产油时间短即见水。针对一口高含水水平井,提出采用井孔声波反射成像与生产测井相结合的解决方案,查明产水阶段,找出产水原因,制定堵水方案。
介绍
鄂尔多斯盆地位于华北地区,面积约2.5×105km2 。
鄂尔多斯盆地西峰区块三叠系长8致密砂岩储层渗透率较低,开发过程中采用水力压裂、注水改造,产油时间短即见水。针对一口高含水水平井,提出采用井孔声波反射成像与生产测井相结合的解决方案,查明产水阶段,找出产水原因,制定堵水方案。
鄂尔多斯盆地位于华北地区,面积约2.5×105km2 。
The Triassic Chang 8 tight sand reservoir in the Xifeng block of the Ordos Basin features low permeability, which means that hydraulic fracturing and subsequent waterflooding were performed during its development phase. Water breakthrough was encountered after a short period of oil production. A solution of borehole acoustic reflection imaging combined with production logging was proposed in a horizontal well suffering from high water cut. The objective was to determine which stages contributed most to water production, understand the cause, and, ultimately, create a water shutoff plan.
The Ordos Basin, with an area of approximately 2.5×105 km2, is in North China.