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Next Generation ESP Bypass System

ESP Bypass systems provide access below your Electrical Submersible Pump (ESP) with no workover requirement, allowing access to perforations and logging with wireline or coil tubing.

The new-technology design of the Zenith Next Generation ESP Bypass System (or Y-Tool) with patented Saddle Assembly™ has revolutionised the way ESP bypass systems are installed, halving regular bypass installation times and significantly reducing rig costs and time-to-production delays.

The completion has been designed in response to industry demand for high-quality, time-saving, reliable oilfield equipment and has been deployed by many operators with significant reduction in installation times.

	Regular install	Zenith install	Time saved
Operator A	12 hrs	5 hrs	7 hrs / 58%
Operator B	8 hrs	3.5 hrs	4.5 hrs / 56%
Operator C	17 hrs	9.5 hrs	7.5 hrs / 44%

Zenith completions unique system design also allows for thermal expansion of the ESP assembly preventing subsequent damage which may be detrimental to the continued operation of the ESP, maximising pump protection.

Overview
Features & Specs
FAQs
Case studies
Resources

Overview

Half regular installation times and reduce rig costs and delays

The innovative Zenith Bypass Saddle™ dramatically simplifies the way bypass tubing is assembled on the rig floor, cutting installation times by up to 50% compared with conventional systems. The Saddle, in conjunction with Zenith bypass clamps, enables the entire Bypass assembly and ESP to be assembled in one operation, removing the timely requirement of accurate space out of bypass tubing to match ESP lengths. Risk of dropped bypass tubing and danger of slippage are also eliminated using the patented Saddle assembly.

Watch the Zenith Saving Bypass Demo and calculate your potential savings

Prevents damage to ESP equipment

Temperature changes can result in different expansion rates of ESP and bypass tubing leading to damaged (bent) motors and broken clamps, hence a reduced ESP runlife.The Zenith Bypass Saddle allows for different expansion rates by allowing the bypass tubing to move unrestricted, preventing unnecessary pump damage.

Easy access below your ESP

The ESP Bypass system’s Y-tool offsets the ESP in the well bore to allow straight line access through the bypass tubing for logging or other operations below the ESP pumping system. The Y-tool and other critical bypass components are supplied as a fully torqued sub-assembly which is internally pressure tested with a system blanking plug set in the swivel nipple — the blanking plug prevents recirculation of fluid around the bypass when the ESP is pumping.

Components are hand-picked in order to configure a bypass assembly that meets your exact specifications.

As an alternative to the Y-tool with blanking plug, the Zenith Auto Isolation Valve automatically closes when the pump initiates using a piston activated by the ESP pump surge. Instantaneous closing of the valve ensures that the well return bypasses the ESP system therefore prolonging the lifespan of the system.

Customer testimonial

"user friendly, quick make up, saves rig time"

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Features and specifications

ESP bypass system applications

Allows access to perforations (below the ESP)
- Add perforations
- Formation treatments (solvents, scale inhibitor)
Allows logging with coil tubing or wireline
- Identify water and oil zones

ESP bypass system features

Patented bypass saddle assembly
Utilises standard nipples and profiles

ESP bypass system options

Top nipple: Allows tubing to be pressure tested and production packer testing
Standing valve: Allows tubing to be pressure tested and production packer testing
Blanking plug with lock: Prevents blanking plug from being unseated
Saddle assembly: Simplifies installation and allows for expansion
Smart plug: Acquires ESP operating pressures
Isolation sleeve: Allows chemical treatment of formation without pumping fluid through ESP (requires top nipple)

In order to assist you in finding the solution to best fit your requirements, please see the following links to related product and service information throughout our website. For documentation and downloads, please visit the Resources tab.

Total Protection Completion System

Specialist Completion Systems

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Frequently asked questions

Q. How can Zenith achieve such bypass system installation time savings?

A. There are two critical criteria for this unparalleled improvement in technology.

1. Creative design. The new technology incorporated into the design of the Zenith Bypass Saddle Assembly allows the ESP string and bypass to be built up in a single operation. No pulling back to install clamps and tubing, no need to fit cumbersome safety clamps every time you add a piece of tubing, no space out errors when attaching the Y-tool to the ESP and bypass string, and simple assembly procedures by design ensure the ESP and bypass remain aligned throughout the operation.

2. Dedicated and experienced personnel are on hand to install the systems. The Zenith team’s experience in bypass design goes back to 1989, while field personnel have significant experience in bypass systems.

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