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准噶尔盆地西部隆克~乌断裂带克拉玛依断裂东段上盘一中、三三区注(采井)、控制井。上部低压,下部高压,易漏易喷。一中区、三3区为新疆油田较早开发区块,老区块高含水,油藏于1956年投入开发,目前已进入高含水开发期。部分井油层薄、物性差、水淹严重,部分井处于水流通道上,两套压力系统在同一裸眼井段,钻井风险较大。提高上部易漏井段承压能力后打开下部高压层位,结合已完成井情况,统计单井泥浆密度及复杂情况,绘制单井压力分布图,后期邻井参考该数据,依据实钻情况选择合适泥浆密度。
The eastern part of the Karamay fault of the Longke-Wu fault zone in the west part of the Junggar Basin is marked with a well (well) and a control well in the upper section of the middle section of the third and third zones. Upper low pressure, lower high pressure, easy to leak easy to spray. The first and third districts are the earlier developed blocks in Xinjiang Oilfield and the old blocks are high in water. The reservoir was put into development in 1956 and has now entered the period of high water cut. Some wells are thin, poor physical properties, serious flooding, some wells in the water channel, the two pressure systems in the same open hole, drilling a greater risk. Open up the lower high-pressure horizon after increasing the pressure-bearing capacity of the upper drainable section, plot the single-well pressure distribution according to the completed well conditions, calculate the single-well pressure distribution map, and select the data according to the actual drilling situation Proper mud density.