Oilfield Annular Calculator
v1.0 · 1.3 MB · code 1
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File information
UpdatedJun 15, 2020
PublishedJun 15, 2020
Packagecom.oilfieldengineer.annularvolumecalculator
Versionv1.0 (1)
Size1.3 MB
MD5df16f5cb6b829b7bc7ac33593b51be35
Min SDK15
Malware scanTRUSTED
Signature SHA1D8:1D:40:B2:CF:D4:0C:25:9B:5F:22:38:F9:8D:A3:F8:9F:61:6E:9D
SignerCN=Anuar Sam
Total downloads1,000
This version1,000
DeveloperNational Oilfield Tool
Age ratingEveryone
Security scan
TRUSTED
- Developer signature verified 2020-06-15
- Scanned for malware 2021-01-26 11:24:22
- Signature SHA1 D8:1D:40:B2:CF:D4:0C:25:9B:5F:22:38:F9:8D:A3:F8:9F:61:6E:9D
- File MD5 df16f5cb6b829b7bc7ac33593b51be35
How to install Oilfield Annular Calculator v1.0 on Android API 15+
Takes about 2 minutes. You'll need roughly 1.3 MB of free storage.
- Grab com.oilfieldengineer.annularvolumecalculator_1.apk — hit the Download button above (1.3 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
- Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
- (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches df16f5cb6b829b7b…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.oilfieldengineer.annularvolumecalculator_1.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
- Check the signer — the install screen will name the publisher. For this build it should read CN=Anuar Sam. If it doesn't match, cancel — you have the wrong file.
- Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
- Done — open Oilfield Annular Calculator — tap Open on the install screen, or find the Oilfield Annular Calculator icon in your app drawer.
Common install errors for Oilfield Annular Calculator
- "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
- "Parse error" — the APK is for a newer Android than yours. This version needs Android API 15 or later. Pick an older build from the versions list below.
- "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.