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水平井主要应用于薄油层、裂缝性油藏、块状底水油藏等油藏类型,由于水平井的供油井段比直井长,所以产量较高。我厂现有水平井28口,水平井垂深最深的井是2928.15m,最大水平段斜度93.21°。水平井井身结构复杂,上部套管为95/8″或7″,悬挂器以下套管为4″、41/2″或51/2″,完井方式采用割缝衬管式完井工艺或裸眼完井工艺。
Horizontal wells are mainly used in reservoir types such as thin oil reservoirs, fractured reservoirs and massive bottom water reservoirs. Since the horizontal wells have longer oil supply sections than straight ones, the yield is higher. The existing horizontal wells in our factory are 28, the deepest wells in horizontal wells are 2928.15m, and the maximum horizontal section is inclined at 93.21 °. The horizontal well bore has a complex structure with a 95/8 “or 7” upper casing and a 4 “, 41/2” or 51/2 "casing below the hanger. The completion method uses a slotted liner completion process Or open hole completion process.