Borehole survey apparatus utilizing accelerometers and probe joint measurements

Patent · Tue Aug 23 00:00:00 EDT 1983

OSTI ID:5738155

Hulsing, II, R H; Peters, R B

To provide for accurate determination of azimuth in a borehole survey apparatus, a downhole probe is disclosed provided with two or more sections connected by torsionally rigid, flexible joint assemblies with provisions for generating signals that represent the relative inclination and azimuth of one probe section from another. These signals are combined with inclination signals obtained from a set of accelerometers in one of the probe sections in a signal processing unit to generate signals that represent the direction and depth of the borehole.

• Assignee: Sundstrand Data Control Group
• Patent Number(s): US 4399692
• OSTI ID: 5738155
• Resource Relation: Patent File Date: Filed date 13 Jan 1981; Other Information: PAT-APPL-224789
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
47 OTHER INSTRUMENTATION
OIL WELLS
WELL LOGGING
WELL LOGGING EQUIPMENT
DESIGN
ACCELEROMETERS
AZIMUTH
BOREHOLES
GEOLOGICAL SURVEYS
MINING
PROBES
CAVITIES
EQUIPMENT
MEASURING INSTRUMENTS
SURVEYS
WELLS
020200* - Petroleum- Reserves
Geology
& Exploration
440400 - Well Logging Instrumentation