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Wellhead lubricator
Used for sealing off a wellhead while tripping in and out of a well
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Used for sealing off a wellhead while tripping in and out of a well during logging and/or dewaxing operations.
Can be designed for 60/73/89 mm tubing to operating pressure of up to 35 MPa.
Can be designed for 60/73/89 mm tubing to operating pressure of up to 35 MPa.
| Rated Diameter | Operating Pressure | |
| L65-35 | Ø 65 mm | 35 MPa |
| L65-21 | Ø 65 mm | 21 MPa |
| L65-14 | Ø 65 mm | 14 MPa |
Types of lubricators L65
Downhole wellhead lubricator designed for 14 MPa working pressure
L-65-14
Downhole wellhead lubricator designed for working pressure of 21 MPa
Downhole wellhead lubricator designed for working pressure of 35 MPa
L-65-35
L-65-21
Features of the lubricator
The lubricator is a complete device comprising an airlock and a docking flange. The flange has a special threaded hole for mounting a pressure gauge and a pressure tap. A bracket with a roller is attached to the airlock, and a roller and a sealing unit for wire or cable are located in the upper part of the chamber.
To install the lubricator, it is necessary to install it on the wellhead fitting, and then introduce the geophysical instrument using a wire or cable connected to the geophysical hoist. After insertion of the instrument, the inlet to the lubricator is sealed by assembling the sealing assembly and tightening the pressure nut.
Construction
Mounting
The combined use of the wellhead lubricator L-65 with the preventer allows to obtain high-quality sealing.
The geophysical instruments are lifted up to the lubricator housing, then the gate valve is closed and the pressure is depressurised by means of a tap. The instrument is then pulled out through the open gland device.
Sealing
Lifting of instruments
Technical Specifications
Configuration
Complete set of downhole wellhead lubricator.
- Lubricator pipe
- Stuffing box w/ line wiper
- Gauge valve
- Flange
- Top and bottom sheaves
- Specs sheet,(passport) pressure test certificate, Customs Union Technical Regulation (TR TS) Certificate
Video presentation
Photo Gallery
FAQs
L-65 lubricator is designed for working pressure up to 35 MPa depending on version
Wires up to 3.0 mm in diameter are suitable for L-65 lubricators
The diameter of the receiving chamber of the L-65 lubricator is 60, 73 or 89 mm depending on the version
Yes, we give a 1 year warranty on L-65 type wellhead lubricators.
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