# Art of Drilling — Drilling Field Reference Tool

> Drilling Field Reference Tool (iPhone/iPad app by Abdullah AlQattan.)

- Source: https://appshunter.io/ios/app/art-of-drilling/id6781392960 (this page in markdown: same URL + `.md`)
- Developer: [Abdullah AlQattan](https://appshunter.io/developer/6781392962)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 13.0 · 17 MB
- Languages: American English
- Released: 2026-06-26
- Data updated: 2026-08-10
- User reviews in markdown: https://appshunter.io/ios/app/art-of-drilling/id6781392960/reviews.md

## What is Art of Drilling?

Art of Drilling (AOD) is a professional field-reference and calculator app built for drilling crews, rig personnel, and well control students. Everything you need on the field, in one fast, offline-friendly app.

MODULES

Tally Book
Build BHA, drill pipe, casing, and tubing tallies joint by joint. Track length, run length, metal displacement, and fill volume automatically. Record serial numbers for bits, subs, and crossovers, then export a clean, professional PDF for your records.

Well Control Quiz
Test your knowledge with a 10-question well control practice exam. Review correct answers, track your score, and export a personalized Certificate of Achievement as a PDF when you pass.

Kill Sheet
Calculate kill mud weight, ICP, FCP, MASP, volumes, strokes, and a full pressure step-down schedule. Supports both PPG and PCF units. Export the completed kill sheet as a PDF.

Trip Sheet
Track hole fill and displacement during trips to stay ahead of swabbing and surging.

Make-Up Torque
Quick-reference make-up torque values for drill pipe, HWDP, and drill collars across common sizes and connections.

Tubulars
Pipe data and capacity reference at your fingertips.

Ring Gaskets
Find the correct R, RX, and BX ring gaskets by flange size and pressure rating.

Formula Book
A quick reference for the essential drilling and well control formulas.

WHY AOD

- Fast and simple, designed for use on the field
- Clean, professional PDF exports for tallies, kill sheets, and certificates
- Multiple themes, including dark mode, to suit your liking
- A practical learning tool for anyone getting into drilling operations

AOD Pro
Upgrade to AOD Pro to remove ads and support ongoing development.

DISCLAIMER
This app is intended for training and reference purposes only. Always verify all calculations against your company's procedures and well control program. The developer assumes no liability for operational decisions made using this app.

Stay sharp and work safe out there.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| AOD Pro | $4.99 | per month |



## Version history (last 2 releases)

### 1.1 — 2026-08-06

• Tally joints are now editable — tap any joint to fix a mistake or delete it, no need to redo the whole tally.
• PDF export now spans multiple pages so long tallies stay readable.

### 1.0 — 2026-06-26

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-10.*