| 摘要 |
FIELD: oil extractive industry. ^ SUBSTANCE: method includes drilling a vertical shaft of large diameter well, which is then cased and cement bridge is mounted in lower portion. Through cement bridge drilling of several wells is performed to projected depth, and then product columns are mounted in each drilled well. After cementing and lowering lift columns into large diameter well shaft, in vertical shaft above cement bridge on lifting columns well chambers are mounted for placement of valves and plugs, which are placed lower than predicted dynamic level of bed fluid during operation of well and above allowed depth of lowering of pumping equipment placed in large diameter lifting column. Above each well chamber a cutting valve is placed, while all mounted product columns are connected with forming of hydraulically linked system mounted with possible combined or separate operation of all product columns, valve devices with locking armature, by means of which all product columns are connected, are placed below cement bridge. One of lifting columns is mounted with flow cross-section greater than any cross-section of other lifting columns, and is provided with blowout control equipment, and valve device is placed below predicted dynamic level of bed fluid during well operation and above allowed depth of lowering of pump equipment placed in lifting column of largest diameter. ^ EFFECT: increased effectiveness. ^ 4 cl, 1 dwg |
