Specifications

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a smooth and regulated 13.5 DC voltage that is used by the Bloodhound to maintain the backup battery and

operate the system.

The internal battery is a common household 12 volt 5 amp hour burglar alarm battery found at Radio Shack or

other battery supply store. This battery is kept charged by the Bloodhound system. When the incoming AC

power fails, this battery will keep the Bloodhound running for around two hours when in like new condition.

This time is reduced as the battery ages. It is recommended to change the battery every year for

maintenance. At a minimum, It should be changed at least every two years. If the battery has an internal short

or if there is a failure in the charge circuit, the 7.5 amp fuse on the Brain Board may open. This fuse is a

standard 7.5 amp ATO type automotive fuse found in any automotive store.

Found on the base plate of the Bloodhound is a DC protection circuit board. This board will monitor the DC

power coming in or going out of the Bloodhound to the Cavitator. The circuitry arrests sparks, surges, and

overloads as well as high frequency noise. This board has a type 3 ATO base automatic reset circuit breaker.

This breaker will open when the load becomes excessive and will remain open until the load is removed. After

cooling for a couple minutes, the breaker will close and apply power to the external load. This board also

holds a load resistor that allows the Bloodhound to monitor the incoming or outgoing amperage (such as to the

Cavitator). The amperage is displayed on the front panel of the Bloodhound and is sent out as part of the

normal data packet to the server system.

E. External Communication Subsystem

The Bloodhound advancements include the ability for independent operation in the field. There have been

many installations on the drilling platform that are unattended. This is where the unit is hooked up in the

service platform next to the drilling deck and monitored and logged off site.

This is done with the use of either a 3G modem or a direct connection to the rig’s Ethernet system using the

Ethernet connection. The 3G modem uses the same system as a cellular telephone to communicate to the

Internet. This system allows the Bloodhound to directly connect to the internet and communicate to the

Bloodhound Data Center Servers. Connection to these servers allow for persons having the user-selected

password to log in and monitor the well remotely or download information. In addition, it allows technicians to

remotely diagnose, adjust, reprogram, or maintain the instrument.

The Ethernet connection is identical except the connection is made through the rigs supplied satellite internet

service. The 3G modem has up to a 1 watt radio output, and with the optional 3 watt booster and 3 dB gain

antenna, can reach just about any site in the United States.

F. Pneumatic System

With the advances of the HRM03 infrared detector system, the Bloodhound pneumatic system has the

advantage of being greatly simplified. The HRM03 infrared detection of gas units will not significantly change

with flow rate changes, or sample temperature. Therefore, the Bloodhound does not need pressure regulators,

large pumps, or distribution manifolds.

The sample line should be conditioned before entering into the Bloodhound system. This conditioning should

always try to remove any condensate or other liquids from the sample line before it is drawn into the

Bloodhound system. Right before the 1/4” inlet, the user should use a pre-filter of around 10-15 microns.

The pre-filter part number we use is G1/4 from Luberfiner or similar type fuel filter. It is a general purpose fuel

filter with a 10 micron paper/mesh construction. This filter serves multiple purposes. It filters any particulate

matter that may accumulate and/or flake off in the sample line during the drilling process. It allows gases and

water vapor to pass through, but will stop any fluid mud that makes its way to the equipment.