Plumb shaft coiled tubing infinite precise-controlling fracturing technology

The invention relates to a plumb shaft coiled tubing infinite precise-controlling fracturing technology, and mainly aims at solving the problems that an existing fracturing method cannot precisely control a single layer and the number of fractured layers is limited. The plumb shaft coiled tubing infinite precise-controlling fracturing technology is characterized by comprising the steps of using acoiled tubing to put a tubular column down to a shaft bottom, adopting a casing pipe collar locator for deep correction, and making the locating depth precise; setting a packer, examining seal, and conducting abrasive perforating on fractured layer sections; closing a casing pipe, and conducting fracturing through annulus; lifting the tubular column to the next layer after one layer of fracturingis completed, and repeating the steps to fracture the subsequent layers. By means of the plumb shaft coiled tubing infinite precise-controlling fracturing technology, a multi-thin reservoir new plumbshaft can be subjected to r