On the domestic shale gas well fracturing technology recommendations

On the domestic shale gas well fracturing technology recommendations

Country due to differences in depositional environment and conditions, the basin and regional heterogeneity of  shale gas  is very strong, so the basin and regional shale gas fracturing technologies for adaptation, will be a long process of research and exploration .

1 complex mechanism of crack formation: ① lithology, physical properties, mechanical properties of natural fractures conditions; ② the maximum and minimum principal stress difference; ③ shear crack formation mechanism.

2 volume fracturing technology aspects: ① volume fracturing reservoir simulation studies; ②  Hydraulic fracturing  spacing and flow capacity optimization; ③ volume fracturing implementation and control technology research, including synchronous fracturing technology.

3 volume fracturing suitable materials research.

4 first test vertical wells, successfully tested in vertical wells to horizontal wells to obtain experience and then expand.

5 crack monitoring technologies to vigorously develop downhole microseismic monitoring techniques to evaluate shale gas fracturing complex crack propagation situation and advise on-site fracturing design and evaluation of results.