1results about How to "Improve working time" patented technology

This invention discloses an integrated fracturing and production tubing string for open-hole horizontal wells and its application method, solving problems such as poor segmentation and sand control effects, and complex operation processes. The device includes a central tubing string and a tool string. The central tubing string includes a top packer, a first sealing cylinder, a quick connector, multiple filling production assemblies, a locking sealing assembly, and a float shoe assembly. Adjacent filling production assemblies are connected via an open-hole packer. Each filling production assembly includes a circulating sleeve, a first double-layer screen, a production sleeve, a second double-layer screen, a second sealing cylinder, a filling sleeve, and a positioning clamp. The tool string includes a top setting tool, a test sealing rod, a reconnection rod, a reconnection tool, a filling control tool, a filling sleeve closing tool, a positioning tool, a filling sleeve switching tool, a circulating sleeve single-closing tool, a circulating sleeve single-opening tool, a positioning sealing rod, and a shearing sleeve. This invention enables effective segmentation, sand control, and selective production in oil wells.