Well logging apparatus having a cylindrical housing with antennas formed in recesses and covered with a waterproof rubber layer

Patent · Tue Aug 14 00:00:00 EDT 1990

OSTI ID:6353374

Clark, B; Jundt, J; Luling, M; Ross, M O

This paper discusses a well logging device for investigating formations surrounding a borehole. It comprises an elongated generally cylindrical housing moveable through the borehole; a transmitting antenna and first and second receiving antennas carried by the housing, the receiving antennas being successively spaced longitudinally from the transmitting antenna; first and second compartments in the housing; means for applying electromagnetic energy to the transmitting antenna; and means coupled to the signal conditioning means for receiving signals from the receiving antennas and for measuring the signals.

• Assignee: Schlumberger Technology Corp., Houston, TX (USA)
• Patent Number(s): US 4949045; A
• Application Number: PPN: US s 7-369584
• OSTI ID: 6353374
• Resource Relation: Patent File Date: 20 Jun 1989
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
EXPLORATORY WELLS
ELECTRIC LOGGING
WELL LOGGING EQUIPMENT
DESIGN
ANTENNAS
NATURAL GAS DEPOSITS
PETROLEUM DEPOSITS
SIGNAL CONDITIONERS
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
EQUIPMENT
GEOLOGIC DEPOSITS
MINERAL RESOURCES
PULSE CIRCUITS
RESOURCES
WELL LOGGING
WELLS
020200* - Petroleum- Reserves
Geology
& Exploration
030200 - Natural Gas- Reserves
Geology
& Exploration