AUTOMATIC LATCHING DEVICE FOR DOWNHOLE GAUGES AUTOMATIC LATCHING DEVICE FOR DOWNHOLE GAUGES

Automatic Latch “UAPGP”

AUTOMATIC LATCHING DEVICE FOR DOWNHOLE GAUGES

Designed for engaging on permanent dowhole gauges installed in the well at the selected depth followed by retrieval to surface.

APPLICATION

It is used in production, observation and injection oil and gas wells as part of a downhole lubricator equipped with a stuffing box on the tubing ø73 mm, in the process of performing well testing and wireline operations permanent downhole gauges and pressure gauges using a winch on a wire, and when scraping the inner walls of the tubing from asphaltene-resin-paraffin deposits.

Operating Principle

  • The anchor levers lock and hold the auto-release with the device in the coupling connection at the selected depth
  • The trigger holder, together with the wire, detaches from the auto-release and rises to the surface
  • The downhole catcher descends on a wire, provides capture and extraction from the tubing of the automatic hook with the device

DESIGN

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Features

  • Reliable sealing of the wellhead during complicated testing/logging operations
  • Sequential arrangement of gauges in the tubing at different depth points
  • Well survey during technological operations
  • Reducing the risk of devices dropping to the bottom of the well in the event of a wire break

Technical Specifications

Body material Stainless steel
Dimensions (diameter x length) Ø 87 х 466 mm
Operating pressure 35 MPa
Operating temperature not more than +100°С
Weight not more than 9.0 kg

STANDARD KIT

Anchor for fixing the downhole gauges in the well
Fork for holding the anchor until actuated
Weight stem
Wire/cable attachment (cable head)
Collet catcher for engaging on the anchor and retrieving it with the gauge to surface
Expander with nut for removing the anchor
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Video Presentation