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. 2026 Oct 7;18(19):2443. doi: 10.3390/polym18192443
# Project Name Permeability (mD) Salinity (ppm) Temp (°C) Polymer Type Pilot/Full Field Incremental Recovery (%) Polymer Retention (µg/g)
1 Aishwariya Lower Fatehgarh 1000–5000 NR; relatively hard/divalent brine Up to 77 at OWC HPAM; ~25% initial hydrolysis Injectivity test → six-well extension → full field
2 Alaska North Slope (Milne Point) 500–5000 2600 (source water) Very low (Arctic conditions) HPAM Pilot (two injector–producer patterns, horizontal wells)
3 Baytex 14-50-25W3 1000 70,000 ppm TDS (3500 ppm hardness) 25 HPAM (Partially Hydrolyzed Polyacrylamide, MW > 20 MDa) Secondary/Tertiary-Full Field (after waterflood) ~4% incremental OOIP (EUR increase from ~13% waterflood to ~17%) —
4 Bhagyam Multi-Darcy; exact value NR NR in retrieved abstract Pilot → full field
5 Bohai Bay Block-X/SZ36-1 ~2000 average Field value not reported; Bohai laboratory injection water 9047 TDS Field value not reported; representative Bohai tests at 65 Hydrophobically associating polyacrylamide, AP-P4 Single-well pilot → well-group trial → large-scale application >7.1% OOIP as of June 2019 Not reported
6 Canto de Amarao 38–200 0.5 50 — Tertiary 26
7 Captain EOR 3000–11,000 31 Polymer; exact commercial grade NR in retrieved source Pilot → Stage 1 → full-field Stage 2 NR; >15 MMbbl enhanced oil produced reported, not %OOIP
8 Chengdao 22F Powder-form polymer, 3000 ppm Large-scale offshore, 43 injection wells 11.6 forecast, not observed
9 Chichimene Fm1 100–10,000 “High temperature”; numeric NR Five-pattern pilot 4–9% by pattern
10 Courtenay/Châteaurenard Fresh formation/injection water; numeric TDS not reported 30 Emulsion-form partially hydrolyzed polyacrylamide; 900–1000 ppm Pilot → commercial field expansion 6.6% of pore volume, published basis; not stated as %OOIP ~35
11 Daqing (CNPC) 400–1000 3–7 41 HPAM (150–300 cP solutions) Full Field 12–25
12 Diadema (CAPSA) 10–5000 15,000 50 Flopaam 3630S (HPAM), 1500–3000 ppm Tertiary 6–8% OIP —
13 Diadema Pilot High perm ~500 mD avg 15,000 ppm NaCl 50 °C Flopaam 3630S (HPAM), 1500–3000 ppm Pilot 6–8% OIP N/A
14 East Bodo NR in retrieved sources Water chemistry variable; exact TDS NR Associative polymer Three-injector/six-producer pilot 20% OOIP laboratory forecast after waterflood; field % NR
15 East-Messoyakhskoye 50–5000 16 HPAM polymer (≈1830 ppm; 30 cP at surface, 60–80 cP in reservoir) Pilot not clear
16 El Corcobo Norte 500–4000 40,000 38 HPAM Polymer injection pilot -
17 EPIC001 Offshore Heavy oil N/A Field-scale modeling values N/A HPAM (modeled), viscosity-optimized Simulation study (pilot-scale) Improved vs. waterflood (non-numerical) Strong dependency on adsorption level
18 Greater Burgan Wara East 300–1000 100,000–270,000 50–70 ATBS-HPAM Pilot 5–7% OOIP 10–30
19 Greater Burgan Wara PF North 300–800 120,000–240,000 50–70 ATBS-HPAM Pilot 4.5–6% OOIP 20–65
20 Greater Burgan Wara West 250–900 100,000–240,000 50–80 ATBS-HPAM Pilot 5–7% OOIP 15–40
21 HTHS Carbonate-Injectivity Test 1 Upper: 10–100+; Lower: 1–20 260,000 120 SAV10 (ATBS-rich sulfonated polymer) Pilot (single-well injectivity test) ~50 (used in calibrated model)
22 HTHS Carbonate-Injectivity Test 2 Upper: 10–100; Lower: 1–20 264,000 124 SAV10 (ATBS-based, thermally stable polymer) Pilot (single-well injectivity test) ~50 (model-selected mid-case)
23 JZ9-3 Polymer/SP Flood Polyacrylamide; 0.12–0.15% 3640C in SP sequence Three-year polymer flood followed by full-field SP 4% incremental oil from polymer phase
24 Kalamkas Full-Field >500 mD ~98,700–136,200 ppm TDS 40 HPAM (partially hydrolyzed polyacrylamide): Flopaam 5205 (5% ATBS) and Flopaam 1630S Full-field expansion ~7.5% (field-wide average over waterflood) retention ~20% lower vs. standard HPAM in lab/core tests
25 Mangala Field 200–4000 <8000 ppm 65–70 HPAM (+ ASP variant in later stages) Polymer pilot → full-field ~7% improvement in RF —
26 Marmul N/A High salinity (>150,000 ppm typical of Oman) >100 °C (HT) ATBS/HPAM (e.g., SAV10, 15 cP solutions) Full Field Improved recovery (exact % not given but significant incremental RF) N/A
27 Matzen Field 8TH 500–1000 21,000 49 HPAM, 500–1000 ppm (20 MDa, 30% hydrolysis) Pilot Good incremental observed, 5–8% not observed
28 Mauddud DRCC 50–300 150,000–270,000 70–90 Hybrid system (Zr/La crosslinker + Sulfonated HPAM) Pilot Not yet quantified 10–30
29 Medicine Hat Glauconitic C (MHGC) 580–1000+ mD 30,000 ppm 21 °C–35 °C HPAM (Polyacrylamide), specifically FLOPAAM 3330 Pilot (5 horizontal injectors) 6% realized initially; targeted 10% with expansion Inferred high due to low temperature and clay content (~10%)
30 Minagish Oolite ~50–300 150,000–240,000 70–83 ATBS-HPAM Pilot 4.5–7.3% OOIP 10–40
31 Minagish Wara 200–800 110,000–210,000 45–65 ATBS-HPAM Pilot (LTPIT) Not reported (injectivity focus) 20–50
32 Murphy Seal 500–2000 Generally low to moderate TDS (Seal water is relatively fresh) 18–25 HPAM (Partially Hydrolyzed Polyacrylamide) Initially a Pilot; expanded to wider field applications Target ~10–15% over primary production/waterflood Moderate; influenced by high clay content in some sand facies
33 NIM-R Polymer Injectivity Trial 200–2000 (avg. ≈ 800) ~6000 (reservoir brine) HPAM polymers of low and high MW (including high-MW Flopaam 3630S) Pilot (Long-term injectivity trial) Not reported (injectivity focus)
34 Nimr-E Multiwell Trial NR in accessible text Multiwell pilot: 3 horizontal injectors, 4 horizontal producers ~7% IOIP observed/assessed
35 Dalia & Camelia (Angola) 1000 30,000 46 High-MW HPAM (hydrolyzed polyacrylamide) Pilot 7
36 Offshore Abu Dhabi Carbonate 5 230,000 Not explicitly stated Thermally and calcium-tolerant polymers (two proprietary polymers, molecular weight optimized by controlled shearing) used with proprietary surfactant system Pilot (single-well SP CEOR with SWTT) Not reported as field RF; oil desaturation ΔSo ≈ 33–36% locally
37 Palogrande-Cebu 6–150 — 62 HPAM polymers (FP3230, FP3330, FP5115; low–medium MW, partly sulfonated) Pilot (two inverted patterns: PG-34, PG-37) 1.86% achieved (PG-34); projected up to ~8.8% (PG-34) and ~2.4% (PG-37) ~39
38 Patos-Marinza & Driza (Albania) 100–2500 high salinity 40–42 Flopaam 3630S (HPAM) Field case Polymer flooded areas reaching an ultimate recovery factor (URF) of 30% —
39 Pelican Lake 3000+ 1–30 g/L salinity 16 HPAM Massive field PF Recovery 7–10% OOIP (field), 26% (pilot), ultimate 20–38% OOIP —
40 RAUB UB2 LTPIT 100–500 110,000–200,000 50–70 ATBS-HPAM (lower MW) Pilot (LTPIT) Not reported (injectivity focus) ~15–40
41 Raudhatain Upper 100–600 120,000–230,000 55–70 ATBS-HPAM (reduced MW) Pilot (LTPIT) Not reported (injectivity focus) ~15–40
42 Rayoso-Grimbek 200–1800 35,000 42 Flopaam 3630S (HPAM), 1500–3000 ppm Pilots (modular/staged) 14% 17–35 µg/g
43 Sabriyah Upper B. ~30–400 120,000–200,000 ~60–75 ATBS-HPAM (≈20–40% ATBS) Pilot (LTPIT) Not reported (injectivity focus) ~10–30
44 Sabryah Mauddud ~100–1000 89,000–241,000 ~45–70 ATBS-HPAM (15–50% ATBS) Pilot (LTPIT) Not reported (injectivity focus) 10–65
45 Shuanghe Elevated-Temperature Pilot 420 average 75 Modified high-MW HPAM S525 and S625 Pilot 3.8 observed by December 1995; 9.8 forecast ultimate
46 Sirikit Oil Field 35 85–95 HPAM polymer Pilot -
47 South Turgay Pilot ~400 mD average (range 85–90, 2–2200 mD) ~79,000 ppm 85–90 HPAM terpolymer (acrylamide–acrylic acid–ATBS), SNF Flopaam Pilot Not reported (oil rate increased; water cut stabilized) Not reported
48 SZ36-1 Pilot NR field High-salinity/high-hardness brine; exact TDS NR NR Hydrophobically associating polymer; AP-P4 identified in later work Single-well pilot → broader application Field % NR; laboratory associative-polymer displacement improvement 9.28%
49 Tambaredjo-Sarah Maria 4000–12,000 field T1; laboratory packs 401–877 500 injection; ~4700 formation 38 Flopaam 3630S HPAM; 1000 → 1350 → 2300 ppm Three-injector pilot; later expansion Field typically 50–250; full calculated range 14–517; laboratory ~0 ± 20
50 Umm Niqqa Lower Fars-High-Salinity 1-Spot Pilot 1000–2000 166,000 ppm TDS < 40 °C (≈ 35 °C reservoir) ATBS-based HPAM Pilot (one-spot SWCT-based) ≈ 54% additional displacement efficiency vs. produced waterflood —
51 Uzen 1.3–120 mD Cretaceous brine (preferred), lower salinity 62 °C Flopaam 5205 VHM (5% ATBS), 1600 mg/L Pilot → Field Economic modeling: positive PI = 1.93 (incremental RF not numerically specified) Lowest dynamic retention screened polymers
52 XJ6 Avg. 649 mD (up to ~1016 mD in S72–S73) 4212 21 Particle-type polymer system: SMG (Soft Microgel) with SLG + crosslinked polymer gel (LPG) Pilot — —
53 Yariguí–Cantagallo TAP Injector–producer ranges from ~400 mD up to 3000 mD (3 D) Injection/formation water chloride ~17,500–18,800 ppm 35–65 Thermally Active Polymer (TAP): expandable sub-micron polymer particles (BWTR29404A, BWTR29398A) with surfactant dispersant Pilot (two campaigns) Not reported (%)-incremental oil reported as volumes (64,749 bbl total by December-2023) NR
54 Zuata-Petrocedeño Pilot 15,000 10,200 46 HPAM (Flopaam 3630S) Pilot —