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Specialized Multi-Level Receivers |
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DSS' special suite of tools, which includes the 42-level
Geochain, 32-level GeoWaves, innovative SST-500, MLR, and
MSR monocable, are all suitable for complex or challenging
surveys such as 3D VSP and microseismic monitoring. All
are adaptable for use with any survey type.
Multi-Level Receivers (MLR)
The Baker Atlas DSS standard Single-Level Receiver (SLR)
can be configured from 1-to-13 levels (Multi-Level
Receiver – MLR). The downhole receivers can be run in
combination with other logging services, either wireline
or pipe-conveyed, reducing the number of trips into the
well – and saving rig time. The high-angle geophone
package replaces the standard geophone package in highly
deviated and horizontal wells.
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SST-500
The unique SST-500 hydraulic clamping system facilitates
easy retrieval in open- or cased hole, and provides a
high-locking force ratio of 10:1. The highlocking force
and innovative tool design result in a high-frequency
response of up to 500 Hz. The tool consists of 12
isolated 3D geophone shuttles, telemetry unit and
hydraulic pump. Safe deployment and retrieval,
high-frequency response and adaptability make it the
ideal system for complex surveys, such as walkaway and
3D VSPs and microseismic projects.
MSR
Baker Atlas DSS can deploy up to 8 MSR multi-level
receivers in slim production holes. An innovative
design, which decouples the receiver from the satellite
body, means that the MSR tool has a very high-frequency
response of over 600 Hz. This makes it ideal for
microseismic or hydrofrac studies and for those
occasions when a VSP needs to be run on monocable
wireline or in slim hole (<2 in.) conditions. |
Geochain Array
Tool
The 3-C Geochain™ system allows up to 42 satellites to
be deployed in a single well. The variable inter-tool
spacing allows for innovative and optimized survey
design. The array is capable of operating for long
periods in high-temperature (180°C/356°F) wells – and
being a modular system, is easily expandable. The system
is made up of standard tools that are adapted to run in
a multilevel configuration, making the system highly
adaptable for different survey objectives. Whether for
rig-time saving or for extra coverage and ease of
operations in complex VSPs, the Geochain system is ideal
when those extra levels are crucial to the objective.
Baker Atlas Downhole Seismic Services also has the very
latest 25,000 psi (1750 bar) high-pressure Geochain
system, the Geochain HP25™, which gives Baker Atlas a
unique capability to conduct operations in the deepest
and most challenging deepwater wells.
The Geochain system is a trademark of Avalon Sciences
Ltd.
GeoWaves Array Tool
The Baker Atlas GeoWaves tool is a digital multi-level
(up to 32) downhole seismic array to record VSPs. It can
be used for semi-permanent installation in a fixed
position in the well for passive monitoring (hydraulic
fracturing mapping or reservoir monitoring). It can be
also used to record large surveys such as 3D VSPs and 4D
VSPs around the well for detailed and time-lapse
reservoir imaging.
The GeoWaves tool has superior telemetry rates and is
resistant to extreme well environments. It is
lightweight, has simple connections for easy deployment
and is easily maintained
The GeoWaves system is a product of Sercel. |
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