Inclination

0 - 180°, ±0.1°

Azimuth

0 - 360°, ±1.0°

High-side Toolface

0 - 360°, ±0.5°

Magnetic Toolface

0 - 360°, ±0.5°

Depth (Option)

0 - 9,999.99 m (32,800 ft), 1%

Gamma (Option)

Range& Accuracy: 0 - 1,000 API, ±10%

Vertical Resolution: 172 mm (6.75″)

Sensitivity: 1.5 CPS/API

Data Storage: 300h @ 10s interval

Environmental Specifications

Mud Viscosity

≤140s

Mud Density

≤2.5 g/cm³

Sand Content

<1% by volume recommended; <3% by volume maximum

Flow Range

6 - 76 L/s (95 - 1,200 gpm)

Signal Height

0.2 - 1.0 MPa (30- 140 psi)

Max. Downhole RPM

250 rpm

LCM Tolerance

143 kg/m³ (50 lb/bbl) medium nut plug

General Tool Specifications

Product Model

350

355

Tool OD

Φ48 mm (1.875')

Φ48 mm (1.875')

Max. Operating Pressure 

120 MPa (17,500 psi)

140 MPa (20,000 psi); 172 MPa (25,000 psi)

Max. Operating Temperature

150°C (302°F）

175°C (347°F)

Battery Life

180h (with Gamma); 200h (without Gamma)

220h (with Gamma); 250h (without Gamma)

Flow Sub OD

Φ79, 89, 121, 159-171, 203, 241 mm (3.125″, 3.5″, 4.75″, 6.25″-6.75″, 8″, 9.5″）

Data Storage

300h @ 10s interval