After the analysis of sensitivity coefficients XR.

The paper gives some new opinions on the calculation of financial analysis’s new indicator-“ sensitivity coefficient” in the guideline of i nvestment project feasibility study.

The concept of temperature sensitive coefficient was put forward originally.

\ The sensitivity coefficients to the porosity are derived from the initial boundary value problems for the fluid equations in porous media by the Green's Reciprocity Principle.

The investigation includes such procedures as formulating a prior reservoir model, deriving sensitivity coefficients, sampling a posteriori probability density function, and predicting uncertainty of reservoir performance.

Theoretical equations for computing sensitivity coefficients of wellbore pressures to estimate the reservoir parameters in low_permeability reservoirs conditioning to non_Darcy flow data at low velocity were obtained.

The courses were arc measurement been instead of elliptic arc measurement,part\'s manufacturing errors,the non-corrected gauge probe radius and the sensitivity coefficient of the arc of small central angle.