News and Latest Innovations / Media Releases

If off bottom high speed string rotation during clean up cycle is a concern (vibrations, tool failures, etc.), a PBL tool can be used as an alternative for ...

2018 / 02 / 18

Design of PBL systems sizes 3-1/8", 4-3/4", 6-3/4" & 8-1/4" have been FEARNLEY INTERNATIONAL GROUP LTD NS-1TM Level 2 ...

2017 / 10 / 05

DSI FZE is pleased to introduce a new option for splitting the flow while drilling, completion and workover operations. With a single ball ...

2017 / 10 / 05

Illusion or reality? The following publications covers certain interesting and useful issues concerning hole-cleaning in combination with PBL ...

2011 / 09 / 23
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Using PBL for Vibration Mitigation

If off bottom high speed string rotation during clean up cycle is a concern (vibrations, tool failures, etc.), a PBL tool can be used as an alternative for achieving the hole cleaning objective.

 

Activating the tool to bypass flow above the BHA will allow for higher flowrate by eliminating the BHA will allow  for higher flowrateby eliminating the BHA and bit pressure losses.

 

Depending on the hydraulics and ECD limitations, if high flowrate can achieve a  turbulent regime across the drill pipe annulus, this can be effectively used to achieve the hole cleaning objective without subjecting the BHA to high speed off bottom rotation, thus preventing any further risk of damage/ failure to the BHA. 

 

Click here for more details.

NS-1 Level 2 Design Approved

Design of PBL systems sizes 3-1/8", 4-3/4", 6-3/4" & 8-1/4" have been FEARNLEY INTERNATIONAL GROUP LTD NS-1TM Level 2 approved. 

 

Click on the logo below for certification details.

 

Introducing, "The PBL Booster Tool"

DSI FZE is pleased to introduce a new option for splitting the flow while drilling, completion and workover operations. With a single ball activation/de-activation cycle a pre-calculated amount of drilling or completion fluid will pass through the Booster Tool and on to the BHA below while the remaining fluid is diverted out of the Booster Tool ports. The ability to split the flow gives the operator more options on available hydraulics and hole cleaning parameters.

 

This innovative, new tool uses the following features to make it unlike any other circulation tool on the market:

 

Single ball activation/de-activation cycles using proven ball-drop technology enables the operator to precisely determine when the tool is closed / open
Standard interchangeable jetting nozzles are directed up-hole allowing for increased fluid velocity minimizing well-bore erosion and maximizing hole cleaning and motor performance
Fluted main body has wear reduction coating applied in exterior contact areas to allow for increased well bore interaction reducing vibration
Completely Mechanical; No electronics or hydraulics means operator ease-of-use and constant reliability
Integrated float minimizes tool length while maintaining well control
A customized hydraulics program is utilized to size tool nozzles for optimal performance

 

Click here to know more. 

Circulating the Hole clean

Illusion or reality?

The following publications covers certain interesting and useful issues concerning hole-cleaning in combination with PBL tools:

  • Hole cleaning: Practice versus proof
  • Trubulent flow GPM
  • Bypassing BHA flow-rate limitations
  • A new routine
  • How to know when the well bore is clean

Download the .pdf-file containing the whole article by clicking.