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Products > Oilfield Chemicals
Sulfonated lignite SMC
1. Property
Sulfonated lignite is a lignite humic acid derivatives，it is obtained of the lignite under the conditions of the sulfonating agent and proper temperature. Its brown-black powder appearance. It is a kind of fresh water drilling viscosity depressant and filtration loss control agent, can resistance to 200℃～220℃ high temperature. It is a kind of cheaply-priced and efficient mud conditioner
2. Quality indexes
Physical chemical properties
Items |
Requirements |
Appearance |
Color black brown powder |
Drybasis humic acid，% |
≧45.0 |
Full chromium of drybasis，% |
≧1.70 |
Moisture content，% |
≦15.0 |
Drilling fluid properties
Items |
Requirements |
||
Determinate under24℃±3℃ |
After processed 200℃，16H maintan,Determinate under(24±3℃） |
||
Basic mud |
Viscosity of ￠100，MPa.s |
45-65 |
85-140 |
AV，MPa.s |
14-20 |
22-40 |
|
Yield value,pa |
7-12 |
12-15 |
|
Lmin gel strength |
7-12 |
9-13 |
|
Basic Mud + SMC |
Filtration loss，ml |
15-18 |
15-19 |
Viscosity of ￠100 ，MPa.s |
≦10 |
≦15 |
|
AV.，MPa.s |
≦8 |
≦12 |
|
Yield value，pa |
≦1 |
≦3 |
|
Lmin gel strength,Pa |
≦1 |
≦1 |
|
Filtration los，ml |
≦10 |
≦11 |
|
3. Use
Sulfonated lignite mainly used in petuoleum, geological exploration drilling. In the drilling mud, it has a significant role in filtrate loss reduction and viscosity reduction control。It can use with many kinds of drilling fluid together directly. Frequently used with Humic acid kalium, SPNH, Sulfonated phenol formaldehyde resin, etc. Normal dosage is 2.0-3.0%。
4. Package & Storage
Store it in a dry, cool and vent place. Packaged in a polyethylene-lined Kraft paper sack with an inner plastic bag.Net weight 25kg/sack.Avoid contact with eyes, skin and clothes, if not, rinse immediately with plenty of clean water.；Keep away from fire。