Stable Measures Shaguanping Gas Field Carboniferous Gas Reservoir

It is necessary for energy industry to speed up exploration and exploitation in low permeate gas reservoir with increasing demands of gas natural resource. But in this kind of gas reservoir, there are so many problems: The exploit technology is complicated, producing reserves is very difficulty. Production capability is poor. So in the middle and later exploit periods of gas reservoir exploitation, it is an important research topic how to adjust develop scale and how to develop exploit method extend in the gas reservoir. This paper take a typical low pore and low permeate gas reservoir-Sha Guan Ping gas field Carboniferous system for example. The main research methods are description, numerical simulation of gas reservoir, repeat the calculate on gas reservoir reserve; objective appraise exploit effect and potential, and analysis the problem existing in the present exploit .In order to insure stable production and provide scientific theories, According to research, we can gain the following results:(1) Make use of the result of new seismic interpretation and the drilling data, drew up the structural map repeatedly, then analyze and explain core again, log data and gain gas reservoir data; fanally, construct 3-D geologic model;(2) The gas reserve is 84.67×10~8m~3 among of which 71.76×10~8m~3 proved reserves; controlled reserve is 12.91×10~8m~3 and main exploit area reserve is 65.77×10~8m~3;(3) The analysis and appraise on exploit design indicated that the design is reasonable, it fit for gas reservoir's actual condition, and each of norm is accomplished very well .On the whole, it is successful.(4) The main factor influencing gas well productivity includes: the prorating of gas well is unfair, gas transfusion is high; bottom hole overstock liquid terrible, combined oil pipe and corruption influence gas well productivity;(5) At present, we can adopt well and gas stable measure include:Gas well classify management system, experiment and adopt water disposal gas productivity; periodic shut well buildup pressure and we can boost pressure to exploit and buildup shutdown well which has potentiality(6) Recommend the forth design (daily production is 45 × 10~4m~3/d pressure boost) as a chief design, the sixth design (daily production is 50×10~4m~3/d pressure boost) is reserve design...