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GYROSCOPE

Gyroscope Orientation Survey

Despite best efforts to the contrary, wells can drift away from vertical during drilling and well construction. When a well is suspected to be less-than-plumb, Eaton Pumps can perform an orientation survey to ascertain how far from vertical, and in which direction, the well has strayed at a given depth.

Our Robertson gyroscopic verticality system measures simultaneous azimuthal and vertical deviation angles and correlates these with depth information so that the path of the well can be compiled and plotted in three spatial dimensions.

Orientation surveys are typically run to inform design of pumping systems in crooked wells (i.e. the depth and diameter of the system that the well can accommodate) and formulate well repair plans.

Orientation Survey Capabilities

Maximum depth: 2500 feet

Gyroscopic Sonde:

Gimbal-mounted directional gyroscope measures sonde orientation
Two accelerometers measure sonde inclination
Top and bottom centralization
Pressure rating: 20 MPa (2,900 psi)
Temperature rating: 70 °C (158° F)
Diameter: 44mm (1.73 inches)
Weight: 12 kg (26.5 lbs.)
 

Measurements:

Cased Hole Inclination (0 – 30° from vertical)
Cased Hole Deviation Azimuth (0 – 360° from N)
Doglegging (degrees / 100 feet)
DAQ Software: Winlogger (Roberson Geologging Ltd.)
Cable: 1/4” double steel-armored, single-conductor co-axial
2500+ feet
Van: 2015 Ram ProMaster 2500 High Roof Cargo Van, 3.0 Eco Diesel

Eaton Drilling Co LLC in Woodland, Contractor license (133783), A General Contractor, C-57 Well Drilling and C-61 Specialty services in California, also other trades Nevada and Oregon. Our equipment conforms to current air quality standards.