The thesis summarises the theory basic on slope stability research of loess floor earth-disposal site which has been affected by well mine.

Based on the example in Min114 block at Xinmin oil field,the authors analyze the relation of the fracture and crustal stress,measure the direction and length of the hydraulic fracture by receiving the microseism signals when the terrene is broken,which provides a basis for deploying reasonable flood pattern for development of low permeability reservoir.

Aiming at the problem that eccentricity of casing in circular hole happened in thermal well,the finite element model is established and the effect of casing eccentricity on wellbore temperature field,casing stress and displacement were analyzed.

The report computes the producing gas equation of the gas well and pressure nodes,determines dynamic relationship curve between the inflow and outflow of the injection and production well.