Speaker
Description
Successful exploitation of tight sandstone gas is one of the important means to ensure the “increasing reserves and production” of
the oil and gas initiative and also one of the important ways to ensure national energy security. To further improve the accuracy of
historical matching of field data such as gas production and bottom-hole pressure during the production process of this type of gas
reservoir, in this study, a new expression of wellbore pressure for the uniform flow of vertical fractured wells in Laplace space based
on the point sink function model of vertical fractures in tight sandstone gas reservoirs is constructed. This innovation is based on a
typical production data analysis plot of the Blasingame type that uses the numerical inversion decoupling mathematical equation.
After analyzing the pressure and pressure derivative characteristics of each flow stage in the typical curves, a new technique of type
curve matching was proposed. In order to verify the correctness of the model and the application value of the field, based on the
previous production data of Sulige Gas Field in China, a new set of production data diagnostic chart of tight sandstone gas
reservoir was formed. A case analysis showed that the application of the production data analysis method and data diagnosis
plot in the field accurately evaluated the development effect of the tight sandstone gas reservoirs, clarified the scale of effective
sand bodies, and provided technical support for optimizing and improving the well pattern and realizing the efficient
development of gas fields.
| Country | CHINA |
|---|---|
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