In some fresh developing zones,the stable production period and decline rate variation are difficult to determine.

Calibrating horizontal well recoverable reserves of old field with graduation-decline method;

We take the controlling of the pressure decline rate in low pressure area,the controlling of the pressure build-up rate in high pressure area as a principle.

If wells produce at natural productivity,their flow rates decline with the same speed as the mid-and high-permeability reservoirs.

Using the steam huff and puff temperature field, saturation field result and the in-situ monitoring data of high temperature steam intake and liquid-producing profiles, well temperature profile, the primary factors that the super-heavy crude single well convention steam huff and puff high cycle decreases progressively are analyzed.

A new method on index forcast of production decline in oil reservoirs;

The application of production decline analysis for gas wells;

Influencing factors of production decline in fault block oil reservoirs in Shengli Oilfield;

Aim To esplore the decline rule and recovery efficiency of Yanchang Oilfield.

Using gas reservoir engineering theory,gas well production performance,dynamic analysis method of gas reservoir,this paper has studied the basic development characteristics of Baiyinnuole gas field,defining gas reservoir drive type,gas field dynamic reserves,rational gas production rate as well as gas well production decline rule.