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Baker Atlas offers the PipeSeis technique as an alternative
to acquiring borehole seismic data using Pipe Conveyed
Logging (PCL). 3-C well seismic data is recorded from within
the drill pipe as the geophone is pumped down using the mud
circulating system. This technique uses conventional
wireline and allows data to be recorded in wells that go
past horizontal at a minimal risk and minimizing rig time.
Deployment of the slim hole
receiver is made through a side-entry-sub and kelly hose
connected to the top of the drill string. When the tool is
at the required measured depth, it is clamped inside the
drill pipe and seismic energy is generated by means of a
conventional source at the surface. Depth is controlled by
a standard wireline encoder. A number of features are
built in to ensure that drill pipe does not become stuck
in the hole during surveying. The PipeSeis system can be
run in single or dual level mode using the SHR tool, or in
true multilevel mode with the MSR receiver. |
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