Tailpipe / Horizontal Production System · ESP

Gadget ESP

The Gadget platform built for ESP completions — a single-trip system that keeps the ESP in a more optimal position, with a safety release if the tailpipe sticks.

Gas Fluid Solids
Render of the Gadget ESP system running from surface through the curve into the horizontal wellbore

Overview

The Gadget ESP System creates a more efficient means to produce horizontal wells. Through a series of tools run in a single trip below the ESP, it helps maintain a more optimal pump position, increasing production and prolonging mean time between failures — which helps bring down lease operating expense.

How it works

A velocity string built for ESP completions, with a safety release if the tailpipe sticks.

  • Single-trip tailpipe below the ESP

    The Gadget ESP System is a third-generation tailpipe where a series of tools runs in below the ESP as a single-trip production system.

  • Gaseous flow regime

    The multi-purpose velocity string creates a more gaseous flow regime through the tailpipe, lightening the hydrostatic column on the reservoir and allowing more drawdown while maintaining a higher pump position.

  • Desander for sandy wells

    A desander can be placed at the entry of the tailpipe to remove solids before they move uphole.

  • Safety release mechanism

    If the pump or tailpipe becomes stuck, the system's safety release mechanism frees the ESP for a safe trip out of hole.

  • Retention valves for sluggy wells

    Adjustable retention valves help prevent fluid falling backward when critical lift isn't always achieved, without risking killing the well. Downhole gas separators can also be added to increase gas handling capacity on shrouded ESPs.

Detail render of the Gadget ESP tool joint

System components

A lower completion for intake and lift, an upper completion for isolation and safe retrieval.

Lower completion

  • Slotted / perforated / desander intake
  • Cup packer to prevent slugging — no setting mechanism required
  • Sized tailpipe to create critical lifting velocity
  • Retention valve to prevent fluid fallback — optional

Upper completion

  • Isolation mechanism and debris barrier for safe installation and retrieval
  • Safety disconnect in case the lower completion becomes stuck
  • High-volume flow sub tied into the ESP sensor
  • Gas separators available for shrouded ESPs
  • Retention valve to prevent fluid fallback — optional

Features & benefits

Results

Increased production without moving the intake.

Sustained increase in production on a large fluid volume well.

Significantly more stable production.

Related system

Technical data sourced from Vannevar internal data sheets, current as of the most recent revision on file.