01 / APPLICATION

Description & application

FRACSEAL® is a finely sized, micronised organic cellulose fibre used for:

1. 01

   Minimising fluid invasion

2. 02

   Stabilising unconsolidated sand formations

3. 03

   Reducing torque and drag in highly deviated wells

4. 04

   Stabilising shale

5. 05

   Stabilising coal beds

6. 06

   Improving return permeability

02 / SUPPLY

Packaging

25 lb

11.34 kg

FRACSEAL® is packaged in multi-wall paper bags.

03 / TREATMENT

Recommended treatment

It is recommended to mix 8–10 ppb of FRACSEAL® in the active mud system for borehole stability and the prevention of problems such as sloughing of shale and coal, as well as when drilling through depleted or unconsolidated sand formations.

The concentration can be increased up to 20 ppb in the active mud when drilling through carbonates or highly reactive shale formations.

04 / SPECIFICATION

Physical & chemical properties

Colour

Light tan / brown

Form

Fine cellulose fibre

pH in water — 10 ppb

6.5 – 7.5

05 / STEWARDSHIP

Environmental safety, handling & shipping

Appropriate respirator, gloves, goggles and apron are recommended for employee comfort and protection.

The supplied product information describes FRACSEAL® as non-toxic and considers it harmless in the marine ecosystem.

It also states that FRACSEAL® does not have a restricted classification for transportation by international or domestic regulatory agencies.

06 / BOREHOLE PROTECTION

Preventing stuck pipe

FRACSEAL® can be added to the active mud system for borehole protection by reinforcing and strengthening the filter cake.

According to the supplied product description, the fibre matrix within the thin wall cake forms an impermeable filter cake that restricts fluid invasion into the formation.

FORMATIONS PRESENTED FOR USE

• Shale
• Coal
• Unconsolidated sand
• Limestone

The supplied information states that the product is designed so its fibre structure can be removed when the well is brought into production.