A balloon bag sealing device grouting slurry for injection

A balloon bag sealing device grouting slurry for injection, the dry feed and water, the weight ratio of dry feed and water as follows: 1.5: 1, said dry material from the raw material of the following composition in parts by weight : cement 45-55 parts 8-9 parts bulking agent, 7-8 parts of accelerator, 0.1-0.3 parts of fly ash, lime 0.05-0.15 parts. Note in the slurry of the present invention: 1, good density, light weight, the quality of the same volume of the present invention is 1/3 of ordinary cement mortar, reduce labor intensity downhole plugging material transport; 2, plugging slurry injection leak ring 5, with expansion, effective sealing around the borehole; fast solidification rate; 3, high compressive strength; 4, has a good permeability and plasticity, fine fractures may be under pressure.