Now a day, the application of 4D surface
microgravity technology for identification density changes
of fluid reservoir is rapidly develop. But, it still has a
resolution limitation in vertical density variation.
Alternatively, borehole gravity meter technique can resolve
this problem.
In this research, to get effectiveness in measuring
borehole gravity response, a forward modeling code
program has been created for some complex synthetic
models. A complex model means that the reservoir has
some faults, anticline, syncline, and wedge out shape. And
then, a characteristic analysis of gravity anomaly response
has been done relates to amplitude, wavelength, boreholes
space and model geometry.
The result of synthetic modeling supported by
amplitude attribute analysis shows that the shape of
complex synthetic model and its depth can be identified
clearly. This paper shows a simulation of fluid movement
in reservoir with different models at different times. With
this simulation, we can see that 4D borehole microgravity
is useful to monitoring the fluid movement in reservoir.