AI-generated category reference. It is not a photograph of a specific manufacturer or exact product model.
Drilling & Downhole Tools
MWD and LWD Tools
MWD/LWD component references for downhole power and communication, separating alternator output, rectifier interfaces and M30 board supply from complete tool performance.
- Documented model references
- 80W mud turbine alternator · M30
- Parameters, conditions and sources
Source-bound technical references
Reference fields for quotation comparison. Final values must be confirmed in the signed manufacturer datasheet.
| Model | Parameter | Reference value | Conditions and source |
|---|---|---|---|
| 80W mud turbine alternator | Alternator output choices | 80 / 160 W | Catalogue page headed 80W. Discrete choices without a mud-flow, speed and load curve; not guaranteed continuous output at all conditions. PDF page 2, printed 02; right-hand Output power rowRevision Public bilingual catalogue; controlled order revision not established · Checked 2026-10-23 |
| 80W mud turbine alternator | Adjustable three-phase AC voltage | 28 to 105 V AC | Alternator voltage, not the rectifier DC output or the supply rating of an MWD electronics board. PDF page 2, printed 02; right-hand Voltage rowRevision Public bilingual catalogue; controlled order revision not established · Checked 2026-10-23 |
| 80W mud turbine alternator | Alternator diameter | 70 mm | Alternator body entry only; not a complete assembled tool outside diameter or a cross-brand fit approval. PDF page 2, printed 02; Alternator diameterRevision Public bilingual catalogue; controlled order revision not established · Checked 2026-10-23 |
| 80W mud turbine alternator | Alternator total length | 787 mm | Catalogue body length, excluding any undefined tool assembly or connection extension. Obtain the controlled interface drawing. PDF page 2, printed 02; Total length of alternatorRevision Public bilingual catalogue; controlled order revision not established · Checked 2026-10-23 |
| M30 | Circuit-board operating supply | 5 V | Vwork single supply. Distinct from the power-line voltage; the 24-48 V line range must not be applied to the board supply pin. PDF page 12, printed 21; Basic Parameters / VworkRevision Public bilingual catalogue; controlled order revision not established · Checked 2026-10-23 |
| M30 | Power-line voltage | 24 to 48 V | Vpower power-line range, not the circuit-board supply. Pinout and protection details require the controlled interface document. PDF page 12, printed 21; Basic Parameters / VpowerRevision Public bilingual catalogue; controlled order revision not established · Checked 2026-10-23 |
| M30 | Communication-interface choice | RS232 or RS485 | One interface is selected per board, not both simultaneously. RS232 requires a controllable RS232 output on the main control board; no protocol compatibility is assumed. PDF page 12, printed 21; Communication interfaceRevision Public bilingual catalogue; controlled order revision not established · Checked 2026-10-23 |
Technical selection notes
The 300W catalogue entry is withheld because its output label was incomplete. No combination of maximum pressure, temperature and electrical output is inferred. M30 uses a selected interface and half-duplex communication; pinout and protocol compatibility remain unverified.
Published manufacturer data is a selection reference, not a quotation or evidence of supply availability.
Product overview
Specify which part of the measurement system is being purchased
MWD and LWD describe system functions, not a single interchangeable component. A power module, communication board, pulser and sensor package have different mechanical, electrical and data interfaces. A request for an MWD tool should identify whether it covers a complete system or a named subassembly.
The BWG catalogue references below concern an alternator page headed 80W and an M30 power-line communication board. They do not establish a complete directional or formation-measurement capability, a logging accuracy or compatibility with another vendor's tool string.
Alternator AC is not the board's DC supply
The alternator voltage entry is adjustable three-phase AC. It must not be copied into the supply field for a rectifier output or an electronics board. Power choices also need an operating basis: the catalogue does not supply the full mud-flow, speed, load and thermal map needed to guarantee continuous output.
The dimensions identify the referenced alternator body. A body that fits a nominal space can still have the wrong connectors, sealing arrangement or electrical interface. Request the assembly drawing and the part designation for the actual offer.
Two M30 voltage labels describe different boundaries
| Label | Meaning in the checked catalogue |
|---|---|
| Vwork | Circuit-board operating supply |
| Vpower | Power-line voltage range |
| Interface | One selected RS232 or RS485 arrangement per board |
Applying the power-line range to the board supply would erase a distinction the manufacturer explicitly makes. The interface names do not define the complete protocol, pinout, grounding, signal levels or firmware behaviour. A shared RS485 label alone is not a compatibility result.
Build the RFQ around interface control
Provide the existing system identity, component part number where available, connector and pinout documentation, electrical load profile, mechanical envelope and qualified service requirements. Ask the bidder to identify which interfaces are supplied, adapted or excluded.
Temperature, pressure and output entries must remain separate unless a controlled document binds them to the same configuration and duty. Request the operating curve, qualification scope and acceptance tests that apply to the selected part. The control-system specification guide is useful for writing interface and test responsibilities, but does not qualify a downhole assembly.
Technical reference trail
These public references support the equipment family and selection context. They do not imply dealership, authorization or a guaranteed order specification.
Frequently Asked Questions
Can the alternator's AC voltage be used as the electronics supply requirement?
No. Identify the alternator, rectifier and board supply boundaries separately, then obtain the controlled interface documents for each.
Does an M30 interface label establish compatibility with an existing MWD system?
No. Pinout, signal levels, protocol, timing, firmware and mechanical integration still need confirmation.
Submit RFQ for MWD and LWD Tools
Send product, quantity, specification and destination details so the requirements can be reviewed with potential suppliers.
Technical and RFQ References
Check common units, standards and purchasing terminology, then build a structured request for this equipment.
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