4results about How to "Guaranteed filling effect" patented technology

The invention discloses a machining workbench for high-quality alloy welding wires, and belongs to the technical field of welding wire machining devices. Comprising a rack, and a mounting frame and a welding rod shell are mounted on the rack; the mounting frame is provided with a medicine filling assembly, the medicine filling assembly comprises a rotating ring rotationally arranged on the mounting frame, the welding rod shell penetrates through the rotating ring, the rotating ring is provided with a plurality of forming cylinders distributed in the circumferential direction, and the forming cylinders have two position states. The machining workbench for the high-quality alloy welding wires has the beneficial effects that the forming cylinder and the compaction column are arranged, welding flux entering the forming cylinder is compacted through the compaction column, and pressure is applied to the welding flux through the compaction spring, so that the problems of nonuniformity, cracking and loosening during filling of the welding flux are avoided, and the machining precision is improved. And meanwhile, the rotating ring is arranged to drive the forming cylinder to rotate, so that the welding flux in the forming cylinder is fully mixed, and the uniformity of the welding flux is guaranteed.

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.

The invention relates to a bionic filling mining method for an underground metal mine. The method comprises the following steps: stoping in sections in a stope; a bionic honeycomb air bag support; carrying out gradient microorganism consolidation filling; multi-source data fusion monitoring regulation and control; and subsection filling is conducted on the secondary mining section. Firstly, a bionic hexagonal honeycomb air bag and nanometer tear-resistant coating supporting structure is adopted, a pressure-displacement dual-mode sensor is combined, supporting of the goaf is rapidly and accurately completed, and it is ensured that the supporting compressive strength meets the long-term stability requirement under the deep high-stress and strong blasting impact environment. Then the modified tailing cementing slurry, a Thermus sp gradient bacterial agent and a nano calcium carbonate crystal nucleus are synergistically mineralized, so that the mineralization time is greatly shortened, and the recovery efficiency is improved; the filling body forms a matched surrounding rock stress arch with a hard bottom and a soft top through a process of adding the microbial agent in a gradient decreasing manner from bottom to top and a layered pouring process, so that the phenomena of bottom crushing and top void are eliminated.