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Release time：2024-07-25 09:39:49 Author：奥泽源
I. Properties and characteristics
This product can effectively inhibit the hydration and expansion of pelites and shales, as well as formation claying. Its ability against temperature is more than 230℃, and the ability against salt is up to saturated degree. The dosage of this product is 0.2%~1.0%. Through the test and evaluation of the main environmental supervision point under SNPS, this product is an environmentally friendly and non-poisonous product. It can be used in heat-resistant and salt-resistant systems from 2000m to 8000m depth. Its inhibition and water-reducing effect is high, and it has good salt resistance and clay resistance. Typical example: swakjin No. Manjia 4, Talimu, depth 7050m, bottomhole temperature 200℃, density 2.2 g/cm3 .1.Shunnan 6 well, Xibei Petroleum Administration (depth 7525m, bottom hole temperature 190℃, density 2.1 g/cm3)
II. Technical indicators
Technical requirements of the product "Coagulant-inhibitor for drilling mud - AHB
quaternary amine copolymer"
| Properties | Indicators | |
| Appearance | White or pale yellow powder | |
| Moisture, % | ≤10.0 | |
| Fineness（Residue after sieving a 0.90 mm mesh sieve.），% | ≤10.0 | |
| pH (1% aqueous solution) | 7.0-11.0 | |
| Apparent viscosity (1% aqueous solution)，mPa-s | ≥20.0 | |
| Fresh water base suspension + 0.3% of sample | Apparent viscosity，mPa-s | ≥25.0 |
| API water yield reduction rate，% | ≥50.0 | |
Saturated salt solution with 36% salt+1.0% of sample | API water-reduction rate (normal temperature) ，% | ≥80.0 |
| API Water Release Reduction Rate (180℃，16h) ，% | ≥70.0 | |