the biggest collection of oil well drilling books such as Drilling bits, Drilling Fluids, and Casing, links updated from time to time, all you have to do is to click on the icon under the required book name:
Casing Dimensions, Materials and Strength
Drill Bit Technology
Drill Bit , a Review PowerPoint
Drilling Fluids
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Introduction to Directional Drilling
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Well head Components
BOPE – Description and Selection
Casing Design
Casing Heads – Basis of Casing Design
Coordinates Systems
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Drill Bits Hydraulics Calculations
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Drilling Fluids
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Principles of Rheology
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SLP Well Coordinates and Directions
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Bit Hydraulics Optimization
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BOPE – Testing Procedures
Survey Calculations
Surveying Tools 1
Surveying Tools 2
Read Also Oil Well Casing
Bottom hole Assemblies
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Down hole Motors
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Rotary Steerable Systems
Cementing Flashs
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MWD and LWD systems
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Operation of Downhole Motor
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Side Track Procedures
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MWD and LWD Measurement Tables
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Shocks and Vibrations
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Anti Collision
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Well Design Fundamentals
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Well Planning Overview
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Basic Maths for Well Planning
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Drilling Manual Planning
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Well Cementing Part.1
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Well Cementing Part.2
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Horizontal Directional Drilling Guidelines
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Well Control Methods
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Drilling Calculations RAR
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Quick Drilling Calculations
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Technical Data Book for Well Control
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Pressure Control During Oil Well Drilling
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Wellhead Safety
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Acidizing
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Read also Drilling Rotating Equipment
Well Control Equations
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Modern Well Test Analysis
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MWD
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LWD and MWD
Drilling preliminaries
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Subsurface Safety Equipment
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Drilling Data Handbook DDH
Weatherford Casing Hardware
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a Primer of Oil Well Drilling
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Fishing – Pipe Recovery Handbook
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Workover Well Control Manual
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Oil Well Drilling Technology 4 parts
Workbook 1 Download
Workbook 2 Download
Workbook 3 Download
Workbook 4 Download
Cementation Factor Relationships to Carbonate Rock Properties
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IADC WellSharp Exam 6 parts Compressed
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Coring Operations – Procedures for Sampling and Analysis of Bottomhole and Sidewell
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Drilling Rigs – from ENI company
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Well Completion
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the Brief in Oil Well Drilling
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IWCF Preparation Course by Hayder Lazim
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Underbalance Drill Manual
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Petroleum Drilling Technology 2017
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Materials Requirements in Oil and Gas Exploration, Drilling and Production
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Drilling Excel Sheets (Basic Drilling Engg. Equations + IWCF Kill Sheet+ Wellhead Schematic”
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Drilling Operation in High Pressure and High Temperature
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Derrickman Module Admin Manual
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Gas Condensate Well Test Analysis
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Formulas and Calculations for Drilling, Production, and Workover
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Stuck Pipe Prevention & First Actions
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drilling problems ,Bareq Al-shuwaili 2020
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Analysis and Control of Rotary Drilling Rigs
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Drilling Rig Emissions Inventory
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Drilling Engineering Problems and Solutions – a Field Guide for Engineers
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Wellhead Equipment
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Sentry Wellhead and Production Equipment Catalogue
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Fundamentals of Drilling Engineering 
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