محوّل الوحدات النفطية
Twenty-one families of upstream units, converted in one place — including the awkward ones like bbl/ft, psi/ft and millidarcy.
الوحدات والتحويل
الكثافة النوعية API وتصحيح الحرارة
°API, specific gravity and density at 15 °C from a density observed at any temperature, with the volume correction factor that gets you there.
يجري تحميل الحساب…
جرى هذا الحساب داخل متصفحك. لم يُرسل أي رقم أدخلته إلى أي جهة، ولم يُحفظ شيء.
كيف تُحسب
- Thermal expansion coefficient α₆₀ = K₀/ρ₁₅² + K₁/ρ₁₅ + K₂, with the K constants taken from the commodity band you select (54A crude, 54B products, 54D lubricating oils).
- VCF = exp[−α₆₀·ΔT·(1 + 0.8·α₆₀·ΔT)], with ΔT measured from the 15 °C basis.
- α depends on ρ₁₅, which is what is being solved for, so ρ₁₅ is found by fixed-point iteration rather than one pass.
- °API = 141.5/SG₆₀₆₀ − 131.5, with SG referenced to water at 60 °F (999.016 kg/m³).
المعايير التي تتحدثها
أين تتوقف عن الصحة
This is the D1250-80 closed-form VCF, not the full API MPMS 11.1 (2004) implementation procedure. The 2004 standard specifies rounding at defined points and an explicit hydrometer correction; a custody ticket computed here and one computed by a certified meter can differ in the fourth significant figure. Use it to check a number, not to issue one.
أدوات ذات صلة
وزن الطين والتدرج والضغط الهيدروستاتيكي
Mud weight in any unit to a gradient and a hydrostatic pressure at any TVD — and the same calculation run backwards to an equivalent mud weight.
محوّل التواريخ الهجرية والميلادية والشمسية
One date in three calendars, for the daily drilling report that is dated in one and the contractor report that is dated in another.
المعدلات ونسبة الماء ونسبة الغاز والجاهزية
Gross to net, cut to WOR, gas rate to GOR, and on-stream rates to calendar-day rates — the arithmetic every production report repeats and half of them get wrong.