Chengong well testing analysis system has large amount of well testing analysis models, with over 90,000 combination solutions; Well testing analysis method is abundant, which provides simulation methods such as conventional well testing, early well testing and DST well testing. At the same time, it provides powerful data processing, report output and other functions, which makes the user operation and output report convenience.

The software has been applied in oil companies like CNPC, Sinopec, CNOOC and etc. Only in Daqing Oilfield, it undertakes the task of testing interpretation and evaluation of tens of thousands of wells every year, making an important contribution to petroleum exploration and development. The research results won the first prize of Anhui Provincial Science and Technology Progress.

Conventional well testing analysis: According to the pressure data of the test and the assumption that the production is known, the step production superposition method is used to carry out the well testing analysis.

Early well testing analysis: Using small signal extraction and amplification technology, the well testing chart suitable for early well testing analysis is obtained, and the interpretation accuracy and interpretation rate of pressure data are improved.

DST well testing analysis: According to the energy conservation equation of wellbore, the coupling relationship between formation seepage and wellbore flow is used to calculate the slug flow pressure and the shut-in recovery pressure, and the joint analysis method of flow and recovery is used for well testing analysis.

Intermittent production and well testing analysis of lifting wells: According to the flow characteristics of oil wells, only intermittent and lifting oil exploitation can be applied, the corresponding mathematical model is established, and the method of simulation full pressure history is used to analyze the well testing.

Well testing analysis of fracture-hole reservoir: Based on the three conservation laws of mechanics, the well-fracture-hole-formation fluid flow model is established, and the typical curve of well testing analysis of fracture-hole reservoir is obtained by using the simplified method and equation solution method of complex model, and the theory and method system of well testing analysis of fracture-hole reservoir are finally formed by using well testing analysis method and full history calculation method.

Well testing design and productivity evaluation and prediction: Well testing design can calculate step flow rate and bottom hole pressure of DST flow. Productivity analysis includes stable productivity and unstable productivity analysis.

Condensate gas well testing analysis: The condensate gas well testing analysis software is used to simulate the phase state characteristics and fluid properties of oil and gas reservoirs, and to form complete pseudo-pressure and pressure conversion data when determining the characteristics of oil and gas reservoirs and the change of fluid components.

Shale gas, coalbed methane well testing analysis: For coal seam, shale reservoir, dense reservoir and etc, the software considers the influence of rock pressure sensitivity on seepage; for coalbed methane, shale gas and dense gas, adsorption is an important gas occurrence form, and the software provides gas adsorption function.

Multi-stage fracturing optimization of horizontal well: Well testing analysis for complex well type and complex boundary.

Analysis of thermal recovery well testing: Interpretation of production profile and steam absorption profile, interpretation of pressure drop test and productivity prediction of shutting in.