Well Flushing Truck oilfield equipment
Oil Production Equipment

Well Flushing Truck

This is the single-purpose water flushing truck, sized at 40 MPa maximum pressure and 30 m3/h maximum displacement, with a booster pump fed at 12 to 16 MPa inlet pressure. It circulates water only, with no heater and no wax-melting loop on board, which keeps the package simpler and cheaper than an integrated flushing-and-paraffin unit for wells that need jet cleaning rather than thermal melting. A built-in decompressor steps inlet pressure down to no more than 0.8 MPa outlet at up to 35 m3/h, so the same truck can both high-pressure flush and low-pressure circulate sand or cuttings. That 40 MPa cold-water head is what clears sediment, scale and residual plugging on standardized post-workover well finishing.

Core advantages

Designed around the operating requirement.

40 MPa water jet

The triplex pump delivers a 40 MPa water jet at up to 30 m3/h, sized to break sediment and scale without the cost and complexity of a heating loop. It is the cold-flushing half of the integrated truck, offered as a standalone unit.

30 m3/h flush rate

Maximum displacement of 30 m3/h sets how fast fill is lifted out; the decompressor then opens the circuit to up to 35 m3/h low-pressure circulation. The two flow regimes cover both cutting scale and carrying sand to surface.

12-16 MPa booster inlet

A booster pump feeds the circuit at 12 to 16 MPa inlet pressure, which stabilizes suction on draws from a nearby line or tank and avoids cavitation at the 40 MPa head. That inlet margin is what keeps the jet steady on long runs.

Decompressor 40 to 0.8 MPa

The on-board decompressor takes inlet pressure up to 40 MPa and steps it to no more than 0.8 MPa outlet at up to 35 m3/h, letting the truck switch from high-pressure jetting to gentle circulation. One chassis covers both regimes instead of needing a second unit.

Water-only circuit

The medium is water, so there is no burner, no crude-handling loop and no wax-melting function. For wells that need scale and cuttings removed but not thermal cleaning, that omission is the cost saving versus the integrated flushing-and-paraffin truck.

Standardized well finishing

With no thermal module to service, the truck is aimed at repeatable post-drilling and post-workover wellbore finishing: pressure, flow and decompressor settings are documented per job, which is what batch well-maintenance programs need.

Product Overview
ProductWell Flushing Truck
Product lineOil Production Equipment
Technical Specifications
Max.working pressure MPa40DecompressorInlet pressure MPa≤40
Max. displacement m3/h30Outlet pressure MPa≤0.8
Inlet pressure of booster pump MPa12~16Outlet displacement m3/h≤35
Working mediumWater
Application

Where this equipment is used.

  • Single-purpose jet cleaning with water at 40 MPa maximum pressure and 30 m³/h displacement.
  • High-pressure flushing where no thermal melting is needed, keeping the package simpler than a combined unit.
  • Low-pressure duty through the built-in decompressor: inlet up to 40 MPa stepped down to ≤0.8 MPa outlet at up to 35 m³/h.
  • Booster-fed circulation with 12–16 MPa inlet pressure for sustained flushing runs.
  • Rapid redeployment between wells on the truck-mounted chassis.
  • Site conditions in desert, Gobi and high-altitude regions are addressed by the Well Flushing Truck climate and coating configuration.
Next step

Send the operating requirement.

For a useful technical response, include the target well conditions, operating depth or pressure, expected quantity, destination and any required configuration.

Send an Inquiry
Configuration

Options for a matched equipment scope.

Available configurations can be matched to the equipment model, operating conditions and project requirements.

  • Pressure and rate: 40 MPa / 30 m³/h rating confirmed against the flushing programme.
  • Decompressor: outlet pressure (≤0.8 MPa) and rate (≤35 m³/h) matched to low-pressure duties.
  • Booster: 12–16 MPa inlet arrangement confirmed against the feed system.
  • Working medium: water circuit and tank materials matched to the water quality.
  • The Well Flushing Truck climate package covers low-temperature start, heat preservation and coating, matched to the operating site.
  • Paperwork and training for Well Flushing Truck: manuals, factory test report and first-period spares ship with the unit; commissioning and familiarization on request.
Buyer questions

Frequently asked about this equipment.

Questions about the well flushing truck cover flushing pressure, flow rate and tank capacity.

What is the difference between Well Flushing Truck and flushing & paraffin removal integrated truck?

The Well Flushing Truck is a professional single-function well service equipment, focusing purely on high-pressure well flushing, sand washing and scale dredging with more stable pressure output and higher cleaning efficiency. The integrated model adds wax melting and heating functions. This professional flushing truck is more suitable for standardized, large-batch daily well cleaning operations with lower failure rate and higher cost performance.

What well types and working conditions is this equipment suitable for?

It serves 0-6000 m conventional production wells, water injection wells, newly completed wells and recompleted old wells. Its 40 MPa / 30 m3/h water jet is aimed at post-workover well finishing, regular wellbore dredging and pressure testing, and the built-in decompressor adds low-pressure circulation (up to 35 m3/h at no more than 0.8 MPa outlet) for batch well-maintenance programmes.

Can the equipment achieve stable high-pressure flushing operation?

Yes. The triplex plunger pump holds the 40 MPa / 30 m3/h rating steadily: the booster feeds the circuit at 12 to 16 MPa inlet pressure to avoid cavitation, and the control loop trims pump output against back-pressure, keeping flushing pressure and rate near set point so the jet does not surge or hammer the wellbore while sediment and scale are lifted to surface.

Does the Well Flushing Truck support extreme climate all-year operation?

Yes. The truck is specified for continuous flushing service across climates, with the 40 MPa / 30 m³/h pump and 12–16 MPa booster package protected for cold and dusty sites; the decompressor also allows low-pressure circulation at up to 35 m³/h when flushing duty is not required. Confirm the winterising scope with the inquiry so it is included in the quotation.

Can the Well Flushing Truck be configured for a specific well programme?

Yes. The configuration is settled against the flushing programme before the order: working pressure grade (40 MPa rated), displacement range (30 m3/h), booster inlet arrangement (12 to 16 MPa), decompressor settings, explosion-proof specification and monitoring package are matched to well depth, blockage condition and the operator's water-supply standard, then written into the quotation and the factory hydrotest report.

Procurement information

Ordering this equipment.

Commercial terms are confirmed in the quotation for the exact configuration, quantity and destination.

Certification & standards

Built to API oilfield equipment safety standards at the Jingzhou plant under ISO 9001:2015 quality management; the triplex pump is hydro-tested to its 40 MPa head and 30 m3/h displacement, and the 12 to 16 MPa booster inlet and decompressor step (up to 40 MPa inlet to no more than 0.8 MPa outlet at up to 35 m3/h) are set and recorded before dispatch. Certificate scope and applicable standards are listed in the quotation.

Documentation

Operation and maintenance manuals, chassis documentation and factory test reports are supplied; the hydraulic and electrical schematics are included for the client's service department.

Lead time

Confirmed in the quotation according to configuration, quantity and destination.

Warranty & after-sales

Manuals, conventional spare parts and remote technical guidance are included; on-site commissioning and operator training can be arranged on request.

Payment & delivery

Payment schedule, Incoterms, port and packaging are agreed in the sales contract.

Spare parts

A recommended spare-parts list for the first operating period is provided with the quotation.