HYDRAULIC TUBING ANCHORS

  • Simple to install, simple to extract
  • Sets and unsets automatically
  • Strong holding power, maximizes pump efficiency
  • No surface manipulation or pretension needed
  • Can only move downwards, keep tubing in constant tension
  • Large bypass for gas, solids, survey tools
Black Gold Pump & Supply is proud to be the leading innovator of the Hydraulic Tubing Anchor. Years of research, development and improvements resulted in this revolutionary product being deployed worldwide, replacing conventional mechanical anchors with its many benefits and advantages. 
The hydraulic tubing anchor is a completely automatic tool that utilizes the weight of the fluid column in the tubing string to power the piston in the anchor. Load reversal from the pump is the force that moves the hydraulic tubing anchor into tension. When the differential pressure in the tubing string is greater than the
pressure in the casing annulus, the anchor piston will be activated hydraulically and press the live slip against the casing.

Only 10 psi of differential pressure is needed to activate the piston. The anchor’s holding power is designed to resist upward movement against the normal forces encountered in the pumping operation, but will yield to forces beyond normal that would over stress the tubing string.

Fixed slips are designed to span recesses, and are built with a proprietary tooth angle, which allows the anchor to move down the hole into proper tension position, but restricts upward movement.

Because they are simple to install and extract, the ease of operation is a strong advantage of hydraulic tubing anchors. Unlike a mechanical anchor, there is no need for surface manipulation to set a hydraulic anchor. 

The hydraulic anchor is activated when the insert or tubing pump is set and the pressure in the tubing string is greater than the pressure in the casing annulus. To retrieve the anchor,simply unseat the pump. The pressure will equalize and the anchor will no longer be in tension.

HYDRAULIC ANCHOR VIDEO

SPECIFICATIONS

Casing Size Range (inch) 4.5”, 5”, 5-1/2”, 7”, 7-5/8”, 8-5/8”, 9-5/8”
Tubing Size Range (inch) 2.375, 2.785, 3.50
Minimum Pressure To Set 10 psi

HYDRAULIC ANCHOR SELECTOR

Our hydraulic anchors are available in API and custom Non-API sizes. Use the Hydraulic Anchor Calculator to decide which size anchor is right for you. (Click on picture to launch)

DOWNLOAD SPEC SHEET

FREQUENTLY ASKED QUESTIONS

  • How does the Hydraulic Anchor work? 

    The Hydraulic Tubing Anchor works on hydraulic pressure. When the differential pressure in the tubing string is greater than the pressure in the casing annulus, the piston will be actuated, pressing the live slip against the casing and holding the tubing string in tension.

  • How much pressure does it take to actuate the anchor piston?

    The piston will start to move at 10 PSI with the holding power increasing as the differential pressure in the tubing string increases.

  • What is the holding power of the anchor?

    The holding power varies with depth and differential pressure between the casing and tubing. The anchor is individually sized for each application. A Load/Thrust calculation is run to ensure proper holding power in each installation.

  • How many anchors had been deployed world wide and how many have you lost downhole? 

    Over 6000 Black Gold Hydraulic Anchors had been deployed worldwide, without any failing to work or lost in hole. 

  • What are the sealing components of the anchor?

    Black Gold Hydraulic Anchors have an o-ring and seal cup that work as the primary and secondary sealing components.

  • What are the anchor seal cups and o-rings made of?

    The seal cups and o-rings and made of 90 Shore, Military Grade Viton.

  • What is the maximum temperature that these Hydraulic Anchors will function in?

    The Viton elastomers are good to 400 degrees Farenheit.

  • Are there any flow restriction on the ID of the anchor?

    No, there are no restriction.  The Anchor ID is slightly larger than the ID of the tubing.

  • Where does the Hydraulic Anchor need to be placed on the tubing string?

    As these anchors actuate on the differential pressure in the tubing string, they need to be placed above the pump. Place the hydraulic anchor as close to the pump as well conditions permit.

  • Black Gold hydraulic anchors generally ship with carburized fixed slips, can I get them with carbide slips?

    Yes, Tungsten carbide button fixed slips are available in most sizes and designed for P-110 casing.

  • How do you size the anchor for my well?

    Hydraulic anchors are sized dimensionally to casing drift. The amount of holding power needed is determined by the pump size and well conditions. You can go to the Black Gold app apps.blackgoldpump.com, submit the parameters and find out if the anchor you’ve selected has the proper holding power for your application.

  • Do I need to pull tension into the hydraulic tubing anchor before?

    No, that is not necessary. Since the anchor works off differential pressure when you draw the fluid level down and the tubing load increases the hydraulic tubing anchor will move down your casing, stretch the tubing, and all pull the tubing into tension. This is ideally for all applications to pull the tubing into tension slowly.

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