US4561502A - Oil recovery process using a polyacrylamide
A polymer gel is formulated by adding a cross-linking agent containing a polyvalent metal cation to an aqueous solution of undried partially hydrolyzed polyacrylamide. The resulting gel is dissolved or suspended in an aqueous medium and injected via a well into a subterranean hydrocarbon-bearing formation to improve oil recovery from the formation.
PHPA, anionic polyacrylamide, APAM. polymer granule in drilling fluid . PHPA is Partially Hydrolyzed Polyacrylamide with high molecular weight used for oil drilling mud additives. Product Description 1. Product characteristics. The polymer is white or light yellow granular powder.
anionic polyacrylamide(PHPA polymer) used for EOR(Enhanced
Anionic polyacrylamide (PHPA polymer) used for EOR(Enhanced Oil Recovery). 1. Product characteristics. Anionic polyacrylamide is a type of ultra-high molecular polyacrylamide specifically produced for oilfield polymer flooding process(EOR)by adopting a new technology.highest molecular weight goes uo tp 25million,moderate hydrolysis,high viscosity and fine solubility.
Anionic Polyacrylamide Used For Eor(enhanced Oil Recovery),Oil Drilling Phpa Anionic And Cationic , Find Complete Details about Anionic Polyacrylamide Used For Eor(enhanced Oil Recovery),Oil Drilling Phpa Anionic And Cationic,Pam Emulsion,Anioinc Polyacrylamide,Cationic Polyacrylamide from Paper Chemicals Supplier or Manufacturer-.
Polyacrylamide degradation and its implications
The hydrolyzed form of polyacrylamide (HPAM), a co-polymer of acrylamide and acrylic acid, is the most widely used anionic PAM in oil and gas development as well as in soil conditioning. 1,9,12,21
Additional oil recovery is obtained from a reservoir with a composition comprising at least a coupling solvent typically employed in waterborne coating compositions. Provided herein are embodiments of methods of recovering hydrocarbons using at least one coupling solvent, such as an oxygenated coupling solvent. The coupling solvent increases the mutual solubility with water at the injection
Polyacrylamide
Polyacrylamide (IUPAC poly(2-propenamide) or poly(1-carbamoylethylene), abbreviated as PAM) is a polymer (-CH 2 CHCONH 2-) formed from acrylamide subunits. It can be synthesized as a simple linear-chain structure or cross-linked, typically using N,N '-methylenebisacrylamide.In the cross-linked form, the possibility of the monomer being present is reduced even further.
The hydrolyzed form of polyacrylamide (HPAM), a co-polymer of acrylamide and acrylic acid, is the most widely used anionic PAM in oil and gas development as well as in soil conditioning. 1,9,12,21
Production of a polyacrylamide solution used in an oil
Aqueous solutions of partially hydrolyzed polyacrylamide (PHPA) are commonly used in oil recovery processes. For example, U.S. Pat. Nos. 2,827,964 to Sandiford et al and 3,039,529 to McKennon teach the use of an aqueous PHPA solution as an oil-displacing drive fluid and U.S. Pat. No. 3,467,187 to Gogarty et al teaches its use as a mobility
Polyacrylamide Uses. Polyacrylamide for Edge-water Encroachment Use(PAM As Oil-displacing Agent) When the oil field is exploited in the petroleum tertiary recovery, if the single injection drive is applied, its fluidity is higher than the crude move, as a result, it
apam anionic polyacrylamide for drilling mud chemicals
Viscosifier Anionic polyacrylamide APAM PHPA drilling fluid . Viscosifier Anionic polyacrylamide,APAM,PHPA,drilling fluid Main Production: Oilfield Chemicals, Oilfield chemical is a general germ,The oilfield chemicals we can supply include anionic polyacrylamide used for oil drilling mud additives , drag reduction agent and EOR(enhanced oil recovery)agent .
Anionic Polyacrylamide/phpa - Buy Anionic Polyacrylamide . phpa anionic polyacrylamide polymer phpa apam anionic polyacrylamide phpa granular additive drilling oil well suppliers drilling and mud chemicals suppliers phpa polyacrylamide 9003-05-8 phpa hydrophilic polyacrylamide drill mud chemic suppliers drill polym fluid suppliers partial agent suppliers
- What is poly ferric sulfate (PFS)?
- Poly ferric sulfate (PFS) with the general formula of [Fe2 (OH) n (SO4)3-n/2] m (n < 2, m > 10) is a relatively new kind of inorganic coagulant. It has been reported by several researchers that it e...
- Does polyferric sulphate remove algae?
- Preparation and uses of polyferric sulphate, US Pat., 5,785,862, 1998. Search in Google Scholar Jiang, J. Q., N. J. D. Graham, and C. Harward. Comparison of polyferric sulphate with other coagulants for the removal of algae and algae-derived organic matter.
- Why are PFS coagulants better than ferric sulphate?
- Therefore, as the PFS coagulants consist mainly of polymeric species, they exhibit better coagulation behaviour. It is worth noting that for a 90% removal efficiency, only 20 mg/l of PFS are required, whereas the respective dosage of ferric sulphate in this case is much higher, i.e. 30 mg/l.
- Is PFS a polymeric salt?
- In polymeric form, PFS is one of the pre-hydrolysing metallic salts with the chemical formula [Fe2 (OH) n (SO4)3−n/2] m (where, n < 2, m > 10) and has a dark brownish red colour as well as is more viscous and less corrosive. PFS has an amorphous structure with small traces of crystallinity, containing both hydroxyl and sulphate functional groups.
