Technical Services-SUNGOOD TECH
SUNGOOD TECH Focus On Mining Machinery & Well Drilling Equipment
Aug 07,2026
DTH 4–8inch air-flush drilling in Africa’s basement (UCS 120–250 MPa): ROP 3–8 m/h at 7–12 bar; Senegal/Egypt data show 0.8–8.0 L/s, VES lifts success 65→90%.
Aug 04,2026
Tropical monsoon zones need drilling despite 2,000+ mm rainfall. PDC for alluvium, DTH for volcanic rock. Yields 1.5-3.5 L/s.
Jul 31,2026
Standardizing equipment cuts per-well cost 19% in 30-well program. Three-tier spares strategy + full interchangeability reduces downtime 66%.
Jul 28,2026
Water Well Development and Pump Testing: How Drilling Equipment Choices Affect Long-Term Yield
47 wells. 3 damage types reduce yield 40-75%. Air lift restores 0.8 to 2.4 L/s. DTH bits + desander cut development 43%.
Jul 26,2026
low-priced pdc drill bits: hidden quality risks and how to avoid losses
Spot hidden defects in low-priced PDC drill bits—used cutters, undersized inserts, and low-grade compacts—before buying.
Jul 24,2026
Air Flush vs Water Flush in Water Well Drilling: When to Switch and What It Costs
47 wells. Air flush fails at 60% water-air pressure. Switch cost +15%, ROP -23%, bit life +40%. Break-even 30 m.
Jul 21,2026
120 wells, 6 countries. Depth adds 18-32%/50m. Cost: USD 52-178/m. Bit+fuel: 58% increase. R²=.81. Table provided.
Jul 17,2026
Water Well Screen and Casing Selection: How Borehole Geology Determines Slot Size and Material Spec
Screen slot by D70 rule (0.25-2.0mm). PVC/SS316L/FRP by Cl & depth. 3 failure cases, repair 40-70% of well cost.
Jul 14,2026
Southeast Asia Water Well Case Study: Drilling in Volcanic Tuff and Basalt in Java and Sulawesi
Java-Sulawesi: 20 wells. PDC in tuff (6.2 m/hr); DTH in basalt lifts ROP 229% (0.7→2.3 m/hr). Dual-method cuts cost/m 45% & NPT 65%.
Jul 10,2026
Water Well Drilling in Fractured Limestone: How to Prevent Lost Circulation Without Stopping the Bit
Jordan/Lebanon fractured limestone: 3 signals warn of loss zones 0.5–1.5m early. Targeted LCM + 30–40% pump/RPM cuts retain 89% ROP, slash NPT 91%, mud cost 77%.
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