Controlled drawing or CAD
Send PDF, DWG or STEP with revision, critical fits, mating housing or shaft, fluid path, retention method and any non-magnetic requirement.
Downhole and oilfield route
Carbide Wear Parts for Downhole & Oilfield Equipment
Carbidea supplies tungsten carbide wear parts for downhole and oilfield equipment, not complete tools or systems. Send a drawing, CAD model, sample or worn part for mud-motor radial bearings/bushings, MWD/LWD parts, mud-pulser rotor/stator parts, choke bean/seats, frac-pump seats/trim, wear rings, and erosion inserts or nozzles. We review fit, retention, erosion and impact before quoting in 1–2 business days.
- Input
- Drawing, CAD, sample or worn part
- Review
- Fit, support, retention and wear path
- Material direction
- Erosion, impact and non-magnetic needs
- Reply
- Technical route and quotation
01 / Input record
Start with the assembly interface and the wear path.
The drawing defines the carbide part; the surrounding tool or equipment defines its support, retention, fluid path and consequence of wear. Both records are reviewed together before material direction or work scope is proposed.
Sample or worn part
Send scaled overview and close-up photos, key dimensions, the assembly context and the failure location. State what changed before removal.
Interface record
Mating bore or shaft, locating faces, retention, running clearance and assembly direction.
Duty record
Mud or process media, solids, pressure cycle, impact, temperature and previous service life.
Failure record
Erosion path, impact origin, heat checking, cracking, clearances and the condition of adjacent parts.
02 / Wear-part register
Part by part: the failure, the fit and what the review must recover.
This register is a review map, not a catalogue of complete tools. Geometry, material direction and manufacturability are assessed part by part.
| Carbide wear part | Typical failure | What the review checks | Material direction |
|---|---|---|---|
| Mud-motor radial bearing / bushing | Bore wear, shaft scoring, clearance growth and cracking | Radial load, running face, lubrication or mud path, retention and mating shaft condition | Wear / toughness balance by drilling duty |
| MWD/LWD wear component | Sensor-adjacent wear, erosion, impact damage or magnetic interference | Assembly interface, target magnetic behavior, test method and non-metallic wear path | WC-Co or nickel-binder direction after review |
| Mud-pulser rotor / stator part | Mud erosion, lost sealing clearance, impact chipping and heat checking | Flow path, mating profile, running fit, solids and the failed surface’s location | Fine-grain wear or tougher impact direction |
| Choke bean / seat | Wire drawing, bore washout, impact damage and lost sealing contact | Bore or taper, entry radius, pressure-drop path, seat pair and replacement access | Erosion-led or impact-led carbide route |
| Frac-pump seat / trim | Impact fatigue, edge spalling, sealing-face damage and erosion | Valve interface, impact cycle, sealing face, support and the mating component | High-toughness direction with wear balance |
| Wear ring | Diameter loss, clearance growth, galling and heat checking | ID, OD, finish direction, running gap, fluid path and mating material | Wear or nickel-binder direction by duty |
| Erosion insert / nozzle | Grooving, bore enlargement, impact loss and retention damage | Flow direction, solids, entry geometry, seating face and removal method | Abrasion-led carbide direction |
| Custom downhole wear part | Mixed wear, cracked or missing geometry and undefined mating condition | Drawing or sample, surrounding assembly, duty record and previous failure evidence | Selected after the governing failure is named |
No universal tolerance, minimum batch, service-life or material-grade value is implied by this register.
03 / Failure & control
Choose the control after naming how the part is lost.
Mud erosion, impact, heat checking and retention failure can damage the same surface in different ways. The material and geometry route follows the observed mechanism.
Mud and solids erosion
Review flow direction, entry geometry, solids, bore condition and the wear surface that governs replacement.
Impact fatigue
Review support, corner geometry, seating contact and repeated impact load before choosing the toughness direction.
Heat checking
Review the thermal cycle, mating material, surface finish and any evidence of cracking around the working face.
Wire drawing and leakage
Review the sealing pair, contact band, flow path and replacement access for seats, beans and trim.
Clearance growth
Review the running gap, shaft or housing condition and how adjacent wear changes the part’s function.
Retention and fit loss
Review locating faces, shoulders, pins, shrink fits or other retention methods with the surrounding assembly.
GENERIC ASSEMBLY CHECK
Mating structure / carbide wear part / retained flow path
Process illustration, not to scale. Final geometry and fit come from the approved drawing.04 / Non-magnetic route
Define the magnetic requirement before choosing a material.
Some MWD/LWD or sensor-adjacent assemblies require a stated magnetic behavior. A conventional cobalt-binder route may not fit that requirement, so the target and test method must be defined before a material direction is proposed.
“Non-magnetic” is not a complete part specification. The page does not assume a grade or result. We evaluate whether a nickel-binder direction fits the wear, impact and assembly duty.
For a non-magnetic review, send:
- Target magnetic behavior and the customer-specified test method
- Mating assembly, sensor proximity and operating media
- Impact, erosion, temperature and previous failure
- Critical fits, retention, finishing and inspection requirements
A nickel-binder direction can change the wear and impact balance. It is reviewed against the equipment duty, not treated as an automatic substitute.
05 / Review route
From part record to a checked wear-part scope.
- 01 / RECEIVECollect the part and assembly
Drawing, sample, mating interface, duty and failure evidence arrive together.
- 02 / MAPLocate the wear path
Mark flow, impact, sealing, locating and support surfaces against the surrounding tool.
- 03 / DIAGNOSEName the governing failure
Separate erosion, impact, heat checking, clearance growth and retention loss.
- 04 / SELECTSet material and finishing direction
Balance tungsten carbide, nickel-binder or assembly requirements with the approved drawing.
- 05 / CONFIRMClose assumptions before quotation
Return open geometry, inspection, material or work-scope questions with the technical route.
Wear-part evidence board
Show the wear-part forms without implying a complete tool.
These photographs show candidate carbide part formats. They do not present complete downhole assemblies or customer-specific equipment.
Seat, ball and sealing-ring formats
Part geometry and mating contact are reviewed from the drawing or sample; this photograph is not a complete valve assembly.
Machined wear-part formats
External and internal features are checked against the interface, retention method and finishing route.
06 / What to send
Send the strongest definition you have.
A complete package shortens technical review. If the controlled drawing is unavailable, send the worn part, scaled photos, key dimensions and enough of the surrounding assembly to explain support and retention.
- GeometryPDF, DWG or STEP with revision and marked critical fits or wear surfaces
- AssemblyMating bore or shaft, locating faces, retention and running clearance
- ServiceMedia, solids, pressure cycle, impact, temperature and previous life
- FailureErosion path, impact origin, cracking, heat checking or clearance change
- Magnetic needTarget magnetic behavior and the test method where non-magnetic function matters
- BatchPrototype, trial or production need; quantity is reviewed part by part
Engineering references
Inspect the operating failure before choosing the replacement.
These guides cover downhole wear, MWD/LWD parts, mud-pulser erosion and frac-pump seat failure.
Carbide wear parts in downhole toolsBearings, bushings and erosion-control context →
MWD/LWD carbide wear partsDirectional-drilling interfaces and non-magnetic needs →
Mud-pulser rotor and stator erosionFlow path, clearance and seal-surface review →
Frac-pump valve seatsImpact, spalling, erosion and mating-seat condition →
FAQ
Questions that change the wear-part scope.
Can Carbidea supply a complete downhole tool or MWD/LWD system?
No. This route covers tungsten carbide wear parts only. Supporting documentation may describe the surrounding assembly, but complete tools, MWD/LWD systems, mud motors and frac pumps remain outside the supply scope.
Can you quote from a worn part instead of a drawing?
Yes, as a starting record. Send scaled photos, key dimensions, the mating assembly and the failure location. The reply identifies which features still need definition before a route can be confirmed.
What must be specified for a non-magnetic wear part?
State the target magnetic behavior and the test method, plus the assembly, media, impact condition, fits, retention and finishing route. A nickel-binder direction is then evaluated against those requirements.
Can prototype and short-run quantities be reviewed?
Prototype and short-run work are part of the custom route. Minimum quantity and total scope are confirmed per drawing and manufacturing step; this page publishes no universal minimum.
Request a review
Send the part record while the wear path is still visible.
Include the drawing or sample, mating assembly, service condition and what failed. We will return the technical route, quotation status and any questions still open.