PARTIALLY Hydrolyzed Polyarylamide (PHPA) is a co-polymer with a high molecular weight and anionic character. It is comparable to SYNPOL 30/Polybond P20/CR650, among others.
Product Name:
PHPA(PARTIALLY HYDROLYSED POLYARYLAMIDE)
Polyacrylamide is its chemical name.
Other Name: Polymer, PAM, and Anionic Polyacrylamide;
Formula for a molecule: (C3H5NO)n
CAS NO.:9003-05-8
It is comparable to SYNPOL 30 / Polybond P20 as a bentonite extender, a clay stabiliser in drilling, and other applications.
PHPA(PARTIALLY HYDROLYSED POLYARYLAMIDE) | |||
Type of PHPA | Molecular Weight/ Million | Degree of Hydrolysis/mol % | Application |
SL-PHPA3 | 1-3 | 20-25 | viscosifier,coating for drilling fluid |
SL-PHPA5 | 3-5 | 20-30 | viscosifier,coating for drilling fluid |
SL-PHPA16 | 16-19 | 25-30 | EOR,fracturing fluid drag reduction,Drilling,HDD |
SL-PHPA20 | 20-25 | 20-25 | EOR,fracturing fluid drag reduction,Drilling,HDD |
SL-PHPA23 | 23-25 | 25-30 | EOR,fracturing fluid drag reduction,Drilling,HDD |
SL-PHPA25 | 25-30 | 40-45 | EOR,fracturing fluid drag reduction,Drilling,HDD,Piling;bored pile |
SL-PHPA30 | ＞25 | 15-20 | EOR,High temperature and salt resistance |
while drilling a group of water muds that either extend bentonite clay in low-solids muds or manage wellbore shales by adding partially hydrolyzed polyacrylamide (PHPA) as a functional addition. PHPA is thought to seal microfractures and cover shale surfaces with a layer that slows dispersion and disintegration as a shale-control mud. In the majority of PHPA mud designs, KCl is used as a shale inhibitor.
PHPA interacts with bentonite in low-solids muds to bind particles together and enhance rheology without adding more colloidal solids to the mix.
A variety of mud systems can be used in conjunction with PHPA's compatibility with a variety of mud additives. The typical fresh water slurry contains 0.1% to 0.5%.
The amount of salt slurry increases typically by 0.5% to 1.0%.
Although dosing is an option, about 2% of the glue is best pre-dubbed.
Packing & Storage
Stored in clean, dry, cool, ventilated areas. 24-month shelf life
Net Weight: 25 kg per bag; 900–1000 kg per pallet;
a typical load of one 20'fcl in 18–20MT;