Topic outline

  • Stuck Pipe Prevention and Fishing Operations

    This course provides an overview of all significant aspects and considerations of stuck pipe prevention and fishing operations for drilling operations section leaders, drilling engineering supervisors, well engineers, petroleum engineers, well servicing/workover/ completion staff and field production staff
    • Training Methodology & Objectives

      Training Methodology

      This Trainee-centered course includes the following training methodologies:-

      • Talking presentation Slides (PPT with audio)
      • Simulation & Animation
      • Exercises
      • Videos
      • Case Studies
      • Gamification (learning through games)
      • Quizzes, Pre-test & Post-test

      Course Objectives

      After completing the course, the employee will:-

      Apply and gain an in-depth knowledge on stuck pipe prevention and fishing operations Identify mechanisms and risk factors that lead to stuck pipe incidents (wellbore instability, hole cleaning, differential sticking, and wellbore geometry)
      Assess mechanics of wellbore stresses and the impact on wellbore stability Analyze trends to identify early warning signs of developing wellbore problems
      Implement effective drilling and tripping practices Make cost-effective choices in planning fishing operations
      Define fishing technology and discuss the stuck pipe mechanisms Determine the workover planning and recognize the problem
      Identify the water control problem and employ the various types of problems Explain the drilling fluids optimization
      Discuss the fishing for parted pipe and fishing cavities including milling operations and free point Enumerate the fishing options in horizontal wells and recognize the fishing for junk
      Illustrate the wash-over and jarring operations and identify the types of fishing jars Explain the jar placement program operating instructions
      Discuss the cased hole fishing and stuck tubing, the causes and solutions Explain the packer including its functions and components
      Distingush the casing repair, coiled tubing fishing operations and fishing Determine the wire line and employ the methods in string recovery
      Explain the job planning and its components including the economics of fishing
      • Course Description

        This E-Learning course is designed to provide participants with an up-to-date overview of stuck pipe prevention and fishing operations. It covers the mechanisms and risk factors that lead to stuck pipe incidents (wellbore instability, hole cleaning, differential sticking, and wellbore geometry); the assessment mechanics of wellbore stresses and the impact on wellbore stability; analyzing trends to identify early warning signs of developing wellbore problems; the effective drilling and tripping practices; and making cost-effective choices in planning fishing operations
        Further, the course will also discuss the fishing technology and the stuck pipe mechanisms; the workover planning and problem recognition; the water control problem and the various types of problems; drilling fluids optimization; the fishing for parted pipe and fishing cavities; the fishing options in horizontal wells and the fishing for junk;  the wash-over and jarring operations; and the types of fishing jars
        During this course, participants will learn the jar placement program operating instructions; the cased hole fishing and stuck tubing, causes and solutions; the functions and components of packer; the casing repair, coiled tubing fishing operations and fishing; the wire line and the methods in string recovery; as well as the job planning and its components and the economics of fishing
        • Module 1 - Stuck Pipe Mechanisms

          Contents:
            • Observations
            • Identify the Cause
            • Stuck Pipe Mechanisms
            • The common Causes of Stuck are:
            • Differential Sticking
            • Differentially Stuck Pipe
            • Differentially Sticking Spreadsheet
            • Preventative Action
            • Video - Drill String Sticking Prevention - Sample
            • Methods used in Freeing Differentially Stuck Pipe
            • Differential Sticking Force
            • Differential Sticking Spreadsheet below is used to Determine the Sticking Force
            • Using Lubricators
            • Jarring the Pipe Loose
            • “U” Tube Technique
            • Differential Sticking Operational Procedures
            • Unconsolidated Formations
            • Preventative Actions
            • Filtrate Reducers
            • Key Seat
            • Surface Jars
            • Preventive Action
            • Standard Single Clutch Key Seat Wiper
            • Module Quiz
          • Module 2 - Workover Planning & Problem Recognition

            Contents:
              • What is a Workover?
              • Reasons for Working Over a Well
              • Service Unit Functions
              • Workover Rigs Functions
              • What is the Tools used for Well Analysis?
              • Well Analysis Tools
              • Characteristic of Problem Wells
              • Water Control Problem Identification & Solutions Problem Types
              • Video - How do Water Wells Work?
              • Water Production Mechanisms
              • Well Analysis
              • The Well Maintenance Requirements for a Completion
              • Workover Types
              • 1. Stimulation
              • 2. Workover Involving Drilling
              • Workover Operations
              • Summary of Common Problems & Workover Operations
              • Module Quiz
            • Module 3 - Drilling Fluids Optimization

              Contents:
                • In this Section
                • Selection of Fluid Type
                • Rheology
                • Gels
                • Inhibition
                • Well Bore Stability/Inhibition
                • Inadequate Hole Cleaning
                • Mud Lubricity - Torque and Drag Reduction
                • Video - Mud Systems & Offshore Drilling - Mud Treatment System
                • Filtration Control/Differential Sticking
                • Solids Control Management
                • Torque and Drag
                • String Torque
                • Mechanical Torque Factors
                • Bit Torque
                • Module Quiz
              • Module 4 - Fishing for Parted Pipe

                Contents:
                  • Fishing for Parted Pipe
                  • Causes of Parted Pipe
                  • Good Questions to Determine Tool Selection
                  • Things to Consider
                  • Planning the Fishing Job
                  • Lead Blocks Parted Pipe
                  • Dress and Catch Fish in Trip
                  • Tapered Mill Guide
                  • Skirted Mill
                  • Bottom Hole Assembly Options
                  • Desirable Characteristics for an Attachment Tool
                  • Screw In
                  • Screw in Accessory
                  • Overshots
                  • Overshot Series Series 10 and 20 Sucker Rod Overshots
                  • Overshot Series Series 70
                  • Overshot Series
                  • Bowen Series 150 - Releasing and Circulating Overshots
                  • Overshot Types
                  • Bowen Series 150 Circulating and Releasing Overshot
                  • Overshots – Parts Required for Bowen Series 150
                  • Three Outer Components of an Overshot
                  • Overshot Bowl and Basket Grapple
                  • Grapple Detail
                  • Grapples
                  • Slim Hole Grapple Tolerances
                  • Close Enough Isn’t Good Enough
                  • What Size Overshot?
                  • Basket Grapples
                  • Plain Basket Grapples
                  • Basket Grapple – Built in Stop Long Catch
                  • Built in and Floating Stop Rings
                  • Shop Made Stop for Overshot
                  • Overshot Packoffs
                  • Spiral Grapple & Accessories
                  • Spiral or Basket Grapple?
                  • Overshot Packoffs
                  • Overshot Packoffs – Type “D” Packer
                  • Packoffs
                  • Spiral or Basket Grapple?
                  • Video: Overshot Fishing Tool: Basket Grapple Overshot
                  • Special Grapples
                  • Overshot Extensions
                  • Overshot Accessories
                  • Things to Consider
                  • Series 150 Overshot Strengths Maximum Recommended Tightening Torques
                  • Spears and Accessories
                  • “ITCO” Type Releasing Spear
                  • Bowen Releasing Spears
                  • Spear with Stop & Packoff
                  • Spear Operation
                  • Releasing Spears
                  • Segment Type Grapples
                  • Spear Accessories
                  • Bowen Releasing Spear
                  • Reversing Tool
                  • H.E. Reversing Tool
                  • H.E. Left Hand Overshot
                  • Capacity of the Work String
                  • Capacity of the Tool
                  • Torque Capacity Ratio at Various Tension Levels
                  • Rig Requirements
                  • Illustration
                  • Tool Requirements
                  • Attachment Tools
                  • Making a Backoff
                  • Disconnecting from Fish
                  • Taps
                  • Box Tap or Die Collar
                  • Taper Tap Engaging Fish
                  • Fish Retrieved by Taper Tap
                  • Drill Pipe Pin Tap
                  • Hollow Pin Tap
                  • Attachment Tools Comparison
                  • Module Quiz
                • Module 5 - Fishing in Cavities

                  Contents:
                    • Fishing in Cavities
                    • Too Much Weight
                    • Eliminates Other Options
                    • Getting Over Fish With Wash Pipe
                    • Don’t Side Track
                    • Fishing in Cavities
                    • Getting Over TOF
                    • Function of Trahan Bushing
                    • Trahan Bushing
                    • How to Apply
                    • Other Options
                    • Shorten Wash Pipe
                    • Cripple Shoe
                    • Re-Top Fish with Spear
                    • Kick Sub
                    • Re-Top Fish with Kick Sub
                    • Mule Shoe Bent Joint
                    • Video: Openhole Fishing
                    • Module Quiz
                  • Module 6 - Milling Operations

                    Contents:
                      • Milling Rotary Speeds
                      • Weight on Mills
                      • For Rotary Shoe the Formula is:
                      • Optimizing Cutting Returns
                      • Junk Milling Operations
                      • Mud Conditioning for Milling
                      • How to Read Cuttings
                      • Some Factors that Affect Milling Rates.
                      • What to do about rubber in the hole?
                      • Stabilizing the Mill
                      • What to do about rough operation?
                      • Mills
                      • Cone Buster/Flat Bottom Mills
                      • Bladed Mill
                      • Insert Dressed Bladed Junk Mill
                      • Bladed Mills/Stabilizer Pads
                      • Piranha Junk Mill
                      • Pilot Mill/Diamond Point
                      • Pilot Mill/Lower Connection Type
                      • Tapered Mills
                      • Watermelon/String Mills
                      • Factors Effecting Milling Rates
                      • Maintain Consistent Parameters
                      • Small Curled Chips: Easy Removal
                      • Milling Rates: Surface Feet/Minute
                      • Bowen Ditch Magnets
                      • Video - EZ-Clean System - ROMAR International
                      • Mills Review
                      • Module Quiz
                    • Module 7 - Free Point

                      Contents:
                        • Est. Stuck Pt. = Tapered String
                        • Formula for Tapered String
                        • Video: 7 DC Tapered Strings
                        • Example Estimated Stuck Point
                        • Observation
                        • Results of Formula
                        • Method # 2
                        • Example
                        • Results of Formula
                        • Video: Wireline Tool for Fishing Operation
                      • Module 8 - Fishing Options in Horizontal Wells

                        Contents:
                          • Economics - When to Quit Fishing?
                          • Free-point and Pipe Recovery
                          • Video:  Water Jet Cutter
                          • Catching a Fish in a Horizontal Well
                          • Jarring Options and Placement
                          • Jar Placement and Impact/Impulse Calculations
                          • Wash-over Operation in Horizontal Wells
                          • Module Quiz
                        • Module 9 - Fishing for Junk

                          Contents:
                            • Questions to Determine Best Fishing Procedures
                            • Exercise 1
                            • Ways to Fish for Junk
                            • Exercise 2
                            • Fishing Magnet
                            • Running Magnets
                            • Boot Basket
                            • Weatherford Type P Boot Basket
                            • Bowen Itco Type Junk Basket
                            • Finger Catchers
                            • Operation: Core Basket
                            • Core Type Basket
                            • Reverse Circulation/Jet Junk Basket
                            • Venturi Jet Junk Basket
                            • Venturi Jet System
                            • /4”3-4 Venturi Jet Assembly
                            • Video - Jet Pumps
                            • Petro China Job in Indonesia
                            • BP Job in England
                            • Junk Shot
                            • Poor Boy Basket
                            • Finger Type Shoe
                            • Dimple Type Shoe
                            • Spring Tine Type Shoe
                            • Spring Tine Basket
                            • Wire Catcher Shoe
                            • Exercise 3
                            • Module Quiz
                          • Module 10 - Wash Over Operations

                            Contents:
                              • Stuck Pipe Flowchart
                              • Jar or Wash Over?
                              • Wash Over Operations
                              • Running Washpipe
                              • Wash Over Pipe
                              • Hole Conditions
                              • Washpipe Comparison Chart
                              • Standard Washover Assembly
                              • Washover Safety Joints
                              • Video - Aker Solutions Safety Joint
                              • Equipment List for a Wash Over
                              • Stripping Fish From a Wash Pipe Using a Backoff Connector
                              • Stripping Stand with Bowl and Slips
                              • Wash Over Crooked Pipe
                              • Hydril 511 Connections
                              • True Circle Tong Bushing
                              • Closed: True Circle Tong Bushing
                              • Shoe Selection
                              • Tooth Type Washover Shoe
                              • Flat Bottom Washover Shoe
                              • Scalloped Bottom Washover Shoe
                              • Five Tooth Type L Rotary Shoe
                              • Carbide Dressed Drag Type A Shoe
                              • Type J Tooth Type Shoe
                              • Type K Tooth Type Shoe
                              • Type B Scallop Bottom Shoe
                              • Type F Scallop Bottom Shoe
                              • Flat Bottom Type M Shoe
                              • Type E Flat Bottom Shoe
                              • Type D Flat Bottom Friction Shoe
                              • Mule Shoe
                              • Only Tool Joints Stuck
                              • Kick Pad in Shoe
                              • Rotary Shoe
                              • Review
                              • Module Quiz
                            • Module 11 - Jarring Operations

                              Contents:
                                • Jarring Force
                                • Video - Drilling Jar
                                • Preferring Impact or Impulse?
                                • The Force of the Jarring Blow is Influenced by the Following Factors
                                • In Hydraulic Jar
                                • Mechanical Jars Tripping
                                • The Combined Effect of the Load and Duration is Called Impulse
                                • Changing impact and impulse
                                • Types of Fishing Jars
                                • Hydraulic Fishing Jars
                                • Fishing Bumper Jar
                                • Dailey HyPulse Jar Slinger
                                • Example of Dailey HyPulse Jar Slinger
                                • Mechanical Drilling Jars
                                • Dailey® L.I. Mechanical Drilling Jar
                                • Fishing String
                                • Jar Placement: Vertical Hole or Less Than 30°
                                • Directional Hole > 30°
                                • Pump Open Force
                                • Calculating Trip Load-Mechanical Jar
                                • Reasons for Jar Failure Answers
                                • Rules of Thumb for Drilling Jars
                                • Exercise 2: Jar Case Study
                                • Jarring While WO O
                                • Stuck B.H.A.
                                • Free Point, Backoff, and Jar
                                • Running Free Point and Jar
                                • Jarring on Fish
                                • Trip # 2 @ 5:00 a.m. 11-25-97
                                • Module Quiz
                              • Module 12 - Weatherford Jar Placement Program Operating Instructions

                                Contents:
                                  • Program Overview
                                  • Menus and Action Buttons
                                  • General Data Entry
                                  • Date
                                  • Customer
                                  • Well Name/No.
                                  • Analyst
                                  • Case Number
                                  • Measured Depth
                                  • Depth Remaining
                                  • Drill String Data Entry
                                  • Video - Weatherford Drilling Jars
                                  • Tool
                                  • Type
                                  • OD
                                  • ID & Weight
                                  • Angle
                                  • Length
                                  • Add a Component
                                  • Adding a Jar
                                  • Delete a Component
                                  • Edit a Component
                                  • General Jarring Analysis Data
                                  • General Jarring Analysis Tab
                                  • Weight on Bit
                                  • Mud Weight
                                  • Side Wall Coefficient
                                  • Jarring Direction
                                  • Select Stuck Locations
                                  • Jar Placement Optimization
                                  • Optimization Methods
                                  • Fixed Anvil Length
                                  • Initial Hammer Length
                                  • Hammer Length Increment
                                  • Number of Increments
                                  • Run Analysis
                                  • Progress Bar & Stop Button
                                  • Output
                                  • Output Page 1
                                  • Output Page 2
                                  • Result Graph and Table
                                  • Jarring Dynamics
                                  • Important Concepts
                                  • Example #2 Placement
                                  • Example #2 – Drill String Entry
                                  • Example #2 - Optimization
                                  • Example #2 – Recommended Assy.
                                  • Example #2 – Output Calculated Data
                                  • Example #2 - Check
                                  • Final Placement Notes
                                  • Jar Placement Basics
                                  • Module Quiz
                                • Module 13 - Cased Hole Fishing

                                  Contents:
                                    • Potential Problems in Cased Hole
                                    • Stuck Tubing: Causes and Solutions
                                    • Mud Stuck Tubing
                                    • Free Point Readings
                                    • Sand Stuck Tubing
                                    • Tubing is Plugged on the Inside
                                    • Inside-Outside Backoff Collar
                                    • Washover Operations in Cased Hole
                                    • H.E. Washover External Cutter
                                    • Cutter Capacity
                                    • Blind Backoff
                                    • Bowen External Cutter
                                    • Bowen Outside Cutter
                                    • Bowen External Cutter
                                    • Bowen Hydraulic External Cutter
                                    • What is a Packer?
                                    • Function of Packer
                                    • Packer Components
                                    • Mechanical Set Packer is Stuck
                                    • Setting Packers
                                    • Packer Types
                                    • Packer Retrieving Tools
                                    • Mill Out Extension, Seal Bore and No Extension
                                    • Packer Retrieving Tools
                                    • Bottom Catch Packer Retrieving Spear
                                    • Top Catch Packer Retrieval Spears
                                    • Pioneer Slick Bore Packer Retrieval Spear
                                    • Pioneer Hydraulic-Release Packer Retrieval Spear
                                    • Video - TechWest RSB-2H Hydraulic Set Retrievable Seal Bore Packer
                                    • Things to Consider
                                    • Rotary Shoes
                                    • Know Your Dimensions and Lengths
                                    • Well Schematic
                                    • Multiple Strings
                                    • Mule Shoe Joint with “No-Go”
                                    • 2 3/8” O.D. Special Washdown Mill
                                    • Clean out Between Packers
                                    • A-5 Packer
                                    • Module Quiz
                                  • Module 14 - Casing Repair

                                    Contents:
                                      • Causes of Casing Failures
                                      • Types of Casing Failures
                                      • Collapsed & Parted Casing
                                      • Decision Chart: Collapsed or Parted
                                      • Identify
                                      • Casing Inspection Logs
                                      • RTTS Packer
                                      • Lead Impression Block
                                      • Down Hole Video
                                      • Video:  Hawk Eye System
                                      • Bowen Casing Rollers
                                      • Eastman Whipstock Casing Rollers
                                      • Swage Construction
                                      • Swaging Tool
                                      • Casing Swage
                                      • External Casing Patches
                                      • Lead Seal Casing Patch in Engaging Position
                                      • Bowen Lead Seal Casing Patch Components
                                      • Bowen Packer Type Casing Patch – Exploded View
                                      • Dressing Mill
                                      • Calculated Strength Data Lead Seal Casing Patches std. Data
                                      • Mechanical Internal Cutter
                                      • Inside Mechanical Cutter
                                      • If Casing is Collapsed Severely
                                      • Lace/Kick Joint
                                      • Casing Parted at 3,450
                                      • Enter & Dress Parted Casing
                                      • Homco Internal Casing Patch
                                      • Standard Patch Features
                                      • Patch Selection
                                      • Prior to Running a Patch
                                      • Picking up the Patch
                                      • Exercise 2: Casing Repair Case Study
                                      • Operating Procedures
                                      • Module Quiz
                                    • Module 15 - Coiled Tubing Fishing Operations

                                      Contents:
                                        • What Is Coiled Tubing?
                                        • Coiled Tubing
                                        • CT Usage
                                        • Advantages of Coiled Tubing
                                        • Advantage of Fishing with CT
                                        • Fishing
                                        • 1. Overshot
                                        • Spear
                                        • Wire Line Catcher
                                        • Video - Wireline Tool for Fishing Operation
                                        • Recovering Tools with Downhole Vibration Technology
                                        • Well Cleaning
                                        • Debris Catching
                                        • Under-reaming
                                        • Mechanical Scale Removal
                                        • Fishing with Downhole Vibration Technology
                                        • Cutting Pipe
                                        • Module Quiz
                                      • Module 16 - Wireline

                                        Contents:
                                          • Wireline - Open Hole
                                          • Wireline - Cased Hole
                                          • Types of Wireline Fishing
                                          • Procedures in Wire Line Fishing
                                          • How to Get Started?
                                          • Perform Test Pull
                                          • Cable Guide Method – Attach Clamp and Derrick
                                          • Cable-guide Fishing Method
                                          • Cable-guide Fishing Assembly
                                          • Tool Caught In Overshot
                                          • Cable Guided Method - Dress Fishing Overshot
                                          • Cable Guided Method -Operating Procedure
                                          • Cable Guided Method - Potential Hazards
                                          • Cable Guided Method - Line Only Stuck
                                          • Pressure Required to Rupture Disks in Pump Out Sub
                                          • Cable Guided Method -Government Requirements
                                          • Side Door Overshot Method
                                          • Side Door Over shot Method - Inserting the Grapple
                                          • Side Door Over shot Method - Don’t have to cut Line
                                          • Side Door Over shot Method – Running Procedure
                                          • When not to use the Side Door Overshot Method
                                          • Fishing for Parted Wire Line
                                          • Fishing for Parted Wire Line -Engagement With Spear
                                          • Cable Specifications
                                          • Stretch Example
                                          • Determining the top of wire line
                                          • Fishing for Parted Wire Line - Stop Rings
                                          • Fishing for Parted Wire Line - Balled Up Wire
                                          • Fishing for Parted Wire Line - Precautions
                                          • Video :  Wireline Operations
                                          • Module Quiz
                                        • Module 17 - String Recovery Methods Stuck pipe represents one of the major problems facing drilling operation, especially in the exploration fields

                                          Contents:
                                            • Freeing Stuck Pipe
                                            • Video - Halliburton Free Point Tool
                                            • When to Give Up Attempts to Free Pipe
                                            • Determining the Estimated Stuck Point
                                            • Procedures to Measure Stretch
                                            • Using the Tapered String Formula
                                            • Procedures for Making a Blind Back-off
                                            • Determining More Precise Stuck Point
                                            • Making a Wash-over and Back-off
                                            • Choosing the Wash Over Pipe
                                            • Selection a Rotary Shoe
                                            • Typical Washover Bottom Hole Assembly
                                            • Where to Back-off?
                                            • Example Calculation
                                            • What is the Maximum Pull on 5” DP @ Surface?
                                            • Module Quiz
                                          • Module 18 - Job Planning

                                            Contents:
                                              • Job Planning & Record Keeping
                                              • Components of Job Planning
                                              • Fishing Cost Analysis
                                              • Ascertaining the Difficulty of the Job
                                              • Determining How Long to Fish
                                              • Cost of Fishing
                                              • Cardinal Rules of Fishing
                                              • Fish in Hole
                                              • Maximum OD of Tools That Can be Washed Over
                                              • In and Out Method
                                              • K.B. Measurements/Elevation
                                              • Video: Kelly and Rotary Table
                                              • Official Well Depth
                                              • Tally Book Rules
                                              • Tally Book Well Data
                                              • Tally Book: Window Milling
                                              • Example: Tally Book Trip# 1 @ 2:00 pm 2-4-98 Union Oil
                                              • Economics of Fishing
                                              • Options/Cased Hole/Open Hole
                                              • Example
                                              • Economics of Fishing
                                              • Matter of Economics
                                              • Module Quiz
                                            • Post-Test

                                              Kindly complete the post-test to assess your knowledge about the topic after the course.