Rotary Pulser MWD

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Rotary Pulser MWD

The Rotary Pulser MWD employs a high-efficiency DC brushless meotor that can help chew through LCM content that would choke the pulser. The anti-jamming control effectively eliminates jamming and blockage, enabling the system to provide reliable and flexible performance over a wide range of mud weights and conditions.

The surface system supports both wired and wireless data transnnission modes for real-time communication features universal plug-and-play sensor interfaces, and includesautomated detection and report generation

capabilities.

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Product Specifications

Features

● Reliable operation with high LCM concentrations

● Robust design for high performance in harsh well conditions

● Wired & wireless dual-mode communication

Application

● Coal mining

● Oil & Gas drilling

● Trenchless tunneling

Specifications

Measurement Specifications
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