Oilfield MWD Servo Pulser Resolver

● The core precision components in the MWD signal generation system.
● Have extremely high requirements for reliability, wear resistance, and dimensional consistency.
● The requirements are extremely demanding and the overall requirements are high.
● Working conditions:
○ Oil/Gas Directional Drilling
○ Measurement While Drilling (MWD)
○ Deep Well, High Temperature and High Pressure (HTHP) Conditions
○ Long-term Continuous Operation, No Failure Allowed

Key Technical Challenges

• Heat-treated BeCu alloy
• It is a rotating functional component
• Narrow functional slots with tight unilateral tolerance
• Restricted corner radii where fillets must not intrude into flow grooves
• Multiple angles and transitions requiring accurate profile control
• Zero-tolerance for burrs on flow-critical and fatigue-sensitive edges
• Requirement for high dimensional consistency across batches

MH Manufacturing Solution

Precision turning on high-end CNC lathes for concentric diameters and stepped profiles.

5-axis / multi-axis machining for complex angular features and controlled radii.

Wire EDM for narrow slots to ensure dimensional stability and clean edges.

In-house vacuum heat treatment to control material properties and distortion.

Standardized deburring process to eliminate flow disturbance and stress concentration.

Full inspection using CMM, optical measurement, and surface roughness verification.

Typical Oilfield Applications MH Support

• MWD / LWD servo pulser components
• Downhole flow control parts
• Shaft-slot functional components
• Repair and remanufacturing of critical downhole tools

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