Smart-Plug™

 

Head of the class in sealing fractures

 

Smart-Plug™ is a proprietary blend of key lost circulation material designed to help cure severe losses in large fractures or highly porous and depleted formations during drilling, completion or work over operations.  When pumped ahead of cement squeezes, Smart-Plug™ will assist in improving formation integrity and leak-off tests.

 

 Particle before and after hydration!

 

 

 

 

 

 

 

 

 

 

 

 

The performance of Smart-Plug lies in the wide PSD of the materials and the ability of certain components to expand during the curing process sealing the porous zone.

Advantages and Benefits

¨     Ability to bridge and seal fractures,

Seals zones of high porosity and permeability

¨     A single sack blend

¨     D50 – 339 microns

¨     Compatible for use in all fluids systems

¨     No spacer is required

¨     Thermally stable up to 410°F (210°C)

¨     Easily mixed through the mud hopper

¨     Smart-Plug™ is compatible with MWDs and mud motors

¨     Mix, pump, spot, and squeeze in as little as 6 hours

¨     Environmentally acceptable – complies with LC50

 

Packaging

¨     Smart-Plug™ is packaged in 50 pound (22.73 Kgs) triple lined bags

¨     2000 (909 Kgs) or 3000 pound (1364 Kgs) super sacks.

Mixing & Spotting Procedures

1.   Identify thief/loss zone.  Calculate volumes needed to cover all potential loss zones with 25% excess.  Mix the Smart-Plug™ to the volume needed. 

Note:  Extra slurry volume may be needed for squeeze procedures. 

2.   Mix Smart-Plug™ in a clean mixing tank and all associated lines with fresh water.  Be sure to remove all pump screens or filters. 

100 Barrels (15.9 m3)

Open Ended

Bit, MWD and Mud Motors

1.  Desired fresh water volume

1.  Desired fresh water volume

2.  4 ppb (11.4 kg/m3) XCD Polymer or 10 ppb (28.6 kg/m3) Bentonite

2.  4 ppb (11.4 kg/m3) XCD Polymer or 10 ppb (28.6 kg/m3) Bentonite

3.  Barite for desired density

3.  Barite for desired density

4.  160 bags (50# sack) (22.7 kg) Smart-Plug™

4.  160 bags (50# sack) (22.7 kg) Smart-Plug™

5.  One bucket (15#) (6.8 kg) Sun Sweep™

 

6.  3 bags (50# sack) (22.7 kg) Fibresol™

 

Note:  When the last sack of material is mixed the pill is ready to pump pill. 

3.   Place bit or open ended drill string 100’ above estimated top of Smart-Plug™. 

4.   Displace the Smart-Plug™ slurry out of the drill sting at comfortable pump rates.  Slow the pump rate to 1-2 bbls (0.16 – 0.32 m3/min) per minutes until the Smart-Plug™ pill has completely cleared drill string plus extra 5-10 bbls (0.8 – 1.6 m3)isplace the Smart-Plug™ slurry out of the drill sting at comfortable pump rates.  Slow the pump rate to 1-2 bbls per minutes until the Smart-Plug™ pill has completely cleared drill string plus extra 5-10 bbls.

5. Stop pumping, make sure the annulus side is full – fill-up if necessary.

6. Pull up 100 feet (30.5 m) above the top of the pill make sure the annulus side is full.

7. Close annular BOP and slowly pump at ± 1 bbl/minute 0.16 m3/min) applying a squeeze to the Smart-Plug™ slurry.

8. When squeeze pressure has reached 50 psi (3.5 kg/cm2), stop pumping and hold pressure for 10 minutes.  Begin slowly pumping again and if squeeze pressure continue to rise, again stop pumping and hold pressure for 20 minutes.

**Precise monitoring of the drill pipe and casing pressure is very important.  Continue this procedure until 300-400 psi (21.1 – 28.1 kg/cm2) squeeze is reached.  Hold pressure for 6 hours.  Open well up and circulate bottom up.

9. If circulation is not gained, follow-up pill should be spotted.

10. If circulation is established – TIH – slowly wash/ream out any bridges and continue normal drilling operations.

Product Sheet in PDF      MSDS Sheet