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胡尖山油田AP区块长7致密油自2010年投入开发以来,定向井表现为单产低,注水见效即见水;水平井虽初期单产高,但存在自然能量开发递减大,注水后多向见水,严重制约着致密油的高效开发。2014年以来该区开展了吞吐采油试验,地层能量得到了有效补充、油井递减得到了减缓,取得了初步成效。论文通过吞吐效果评价及认识,为该区后期扩大开展吞吐采油范围、确保油田持续稳产提供了科学依据。
In the APJ block of the Jushan Oilfield, Block 7, tight oil has been in development since 2010 and directional wells are characterized by low yields and effective water injection. However, although the initial production of horizontal wells is high, the development of natural energy decreases more and more, Water, a serious constraint on the efficient development of tight oil. Since 2014, the area has carried out a throughput recovery test, the formation energy has been effectively replenished, and the decline of the well has been slowed down and initial success has been achieved. Through the huff and puff effect evaluation and understanding, the paper provides a scientific basis for expanding the range of oil production and throughput in the late stage of the area and ensuring the steady and stable production of the oilfield.