. . .
Plan Well in Real-Time Node Tree with links to ICOMs

Click below for Node Tree Images:
Node TreeNode Tree Outline
Node Tree HybridNode Tree Sorted

0.0.0 ___ Document Well Planning & Workflow Best Practice
0.0 ______ Plan Well in Real-Time
1.0 _______ Determine Customer Requirements
1.1 ________ Determine Well Surface Location
1.1.1 _________ Define Options for Surface Location __________ Determine Locations with Access __________ Determine Feasibility of Placing the Rig ___________ Optimize Number and Location(s) of Platform(s) or Pad(s) ___________ Plan a Group of Wells From a Platform or Pad ___________ Optimize the Engineering and Economics of the Entire Platform __________ Determine Available Platform/Pad Slots __________ Evaluate if Targets can be Reached from Location
1.1.2 _________ Evaluate Surface Location __________ Evaluate Cost __________ Evaluate Environmental Impact __________ Evaluate Potential for Downhole Collisions __________ Evaluate Impact on Future Wells __________ Evaluate Other Impacts of Location
1.1.3 _________ Select Best Surface Location
1.2 ________ Define Stratigraphy
1.2.1 _________ Define Lithologies
1.2.2 _________ Define Dip
1.2.3 _________ Define Possibility of H2S
1.3 ________ Finalize Well Targets
1.3.1 _________ List Potential Targets
1.3.2 _________ Evaluate Geologic and Drilling Impacts
1.3.3 _________ Select Optimum Targets
1.4 ________ Determine Expected Pressures
1.4.1 _________ Determine Expected Pressures from Seismic
1.4.2 _________ Determine Expected Pressures from Offset Wells
1.4.3 _________ Determine Expected Pressures from Geologic Models
1.5 ________ Determine Expected Reservoir Volumes
1.5.1 _________ Determine Potential for Damage
1.5.2 _________ Determine Reservoir Lithology
1.5.3 _________ Determine Expected Hydrocarbon Properties
2.0 _______ Generate Well Plan Options
2.1 ________ Define Wellpath Trajectory and Well Options
2.1.1 _________ Move Proposed Wellbore to Hit Targets __________ Define Options for Surface Location __________ Evaluate Surface Location __________ Select Best Surface Location
2.1.2 _________ Design Casing Program __________ Determine Geometry of Casing String ___________ Determine Optimum Diameter for Production String ___________ Determine Sizes and Setting Depths of Intermediate Strings ___________ Determine Sizes and Setting Depths of Surface Casing __________ Determine Necessary Quality of Casing Material ___________ Determine Casing for Tensile Strength ___________ Design Casing for Burst Pressure ___________ Design Casing Against Collapse ___________ Design Casing for Corrosion and H2S Resistance __________ Select Weight and Grade of Casing ___________ Determine Availability of Casing Weights and Grades ___________ Determine Cost of Casing Weights and Grades ___________ Select Optimum Casing Weight and Grade
2.1.3 _________ Design Mud Program __________ Determine Mud System __________ Determine Mud Weights __________ Determine Mud Water Loss __________ Determine Mud Solids Composition and Content
2.1.4 _________ Design Bit Program __________ Choose Bit Type __________ Choose Bearing Type __________ Choose Seal Type __________ Choose Tooth Type __________ Choose Design of PDC or Diamond Bits
2.1.5 _________ Design Formation Evaluation Program __________ Evaulate Cost of Formation Evaluation __________ Evaluate Safety of Formation Evaluation Program __________ Evaluate Wireline or MWD __________ Evaluate Geologic and Drilling impact on Formation Evaluation Program __________ Select Optimum Formation Evaluation Option
2.2 ________ Select Operating Parameters
2.2.1 _________ Select Rotary Speed
2.2.2 _________ Select Weight on Bit
2.2.3 _________ Select Hydraulic Program __________ Determine Mud Pump Capacity and Pressure __________ Determine Internal Geometry of Drill String __________ Determine Weight and Flow Properties of Mud __________ Determine Circulation Rate __________ Optimize Bit Nozzle Size
2.3 ________ Define Select Drilling Rig
2.3.1 _________ Acquire List of Available Rigs
2.3.2 _________ Find Available Rigs with Approprist Depth Rating
2.3.3 _________ Find Available Rig with Appropriate Mud Pumps
2.3.4 _________ Find Available Rig with Appropriate Solids Control Equipment
2.3.5 _________ Find Available Rig with Appropriate Blow Out Control Equipment
2.4 ________ Define Set Lmits on Authorization for Expenditure (AFE)
3.0 _______ Evaluate Well Plan Options
3.1 ________ Evaluate Well Trajectory
3.2 ________ Evaluate Casing Program
3.2.1 _________ Evaluate Cost of Casing Program
3.2.2 _________ Evaluate Availability of Casing
3.2.3 _________ Evaluate Risk of Casing Quality
3.2.4 _________ Evaluate Other Casing Attributes
3.3 ________ Evaluate Mud Program
3.3.1 _________ Evaluate Cost of Mud Components
3.3.2 _________ Evaluate Availability of Mud Components
3.3.3 _________ Evaluate Quality of Mud Components
3.3.4 _________ Evaluate Environmental Impact of Mud Program
3.3.5 _________ Evaluate Other Attributes of Mud Program
3.4 ________ Evaluate Bit Program
3.4.1 _________ Evaluate Cost of Bits
3.4.2 _________ Evaluate Availability of Bits
3.4.3 _________ Evaluate the Quality of the Bits
3.4.4 _________ Evaluate Other Attributes of Bit Program
3.5 ________ Evaluate Formation Evaluation Program
3.5.1 _________ Evaluate Cost of Formation Evaluation
3.5.2 _________ Evaluate Availability of Formation Evaluation Tools
3.5.3 _________ Evaluate the Quality of the Formation Evaluation
3.5.4 _________ Evaluate Other Attributes of Formation Evaluation
3.6 ________ Evaluate Rig
3.6.1 _________ Evaluate Cost of Rig
3.6.2 _________ Evaluate Contractor __________ Evaluate Past Performance __________ Evaluate Safety Record __________ Evaluate Labor Relations __________ Evaluate Environmental Record
3.6.3 _________ Evaluate Condition of Equipment __________ Evaluate Condition of Drill String ___________ Examine History of Drill Pipe ___________ Examine Latest Inspection of Drill Pipe ___________ Examine History and Condition of Drill Collars ___________ Examine Cross Over Subs and Special Downhole Equipment __________ Evaluate Well Control Equipment ___________ Evaluate Condition of Elsatomer Elements ___________ Evaluate Condition and Availability of the Accumulators ___________ Evaluate Condition and Availability of Control Panels ___________ Evaluate Condition of Choke Manifold ___________ Evaluate Condition and Availability of Trip Tank __________ Evaluate Solids Control Equipment ___________ Evaluate Condition of Shale Shaker and Shale Shaker Screens ___________ Evaluate Condition and Availability of Desanders ___________ Evaluate Condition and Availability of Desilters ___________ Evaluate Centrifuges and Other Solids Control Equipment __________ Evaluate Hoisting System and Drill Line ___________ Evaluate Condition of Draw Works Brakes ___________ Evaluate Condition of Draw Works Power ___________ Evaluate Condition of Drill Line ___________ Check Drill Line Stripping and Cutting Schedule ___________ Evaluate Condition of Weight Indicator ___________ Evaluate Crown and Traveling Blocks __________ Evaluate Mud Pumps ___________ Evaluate Condition of Mud Pumps ___________ Determine if Triplex or Duplex ___________ Evaluate Power Plant for Mud Pumps ___________ Evaluate Safety Devices on Pumps ___________ Evaluate Condition of Surge Dampeners __________ Evaluate Condition of Derrick and Substructure ___________ Evaluate Condition and Load Rating of the Derrick ___________ Evaluate the Height and Stand-Back Capacity of the Substructure ___________ Determine Adequacy of the Height of the Derrick ___________ Evaluate the Condition of the Monkey Board and Pipe Stand-Back Equipment
4.0 _______ Select Best Well Plan
4.1 ________ Compare Evaluated Well Plans with Real-Time Monitor Data
4.2 ________ Optimize Drilling Plan
5.0 _______ Drill and Complete Well
5.1 ________ Contract Rig
5.1.1 _________ Negotiate the Drilling Rig Contract __________ Negotiate Division of Responsibility __________ Determine Insurance Needs __________ Negotiate Method and Rate of Payment __________ Determine Responsibility for Site Restoration
5.1.2 _________ Communicate Well Plan to Contractor
5.2 ________ Prepare Location
5.2.1 _________ Acquire Permits
5.2.2 _________ Survey Site
5.2.3 _________ Develope Site Access
5.2.4 _________ Prepare Site for Rig
5.2.5 _________ Set Conductor Pipe
5.3 ________ Monitor Drilling
5.3.1 _________ Sign Contract with Mud Logging Crew and Real-Time Data Crew
5.3.2 _________ Review Best Well Plan Requirements __________ Integrate Logging Plan with Best Well Plan __________ Determine Required Downhole Tools ___________ Determine if Need Resistivity Downhole Tool ___________ Determine if Need Gamma Ray Downhole Tool ___________ Determine if Need PWD (Annular Pressure While Drilling) Downhole Tool ___________ Determine if Need Sonic Downhole Tool
5.3.3 _________ Review Available Services of Contractors
5.3.4 _________ Install/Operate Mud, MWD, LWD, and PWD Logging Systems __________ Synchronize Surface and Downhole Data ___________ Install Logging Systems ____________ Install and Operate Mud System ____________ Install and Operate MWD System ____________ Install and Operate LWD System ____________ Install and Operate PWD System ___________ Measure and Monitor Surface Parameters ____________ Measure and Monitor Real-Time Data _____________ Make Pore Pressure Prediction _____________ Measure Cuttings Flow _____________ Perform Kick Detection _____________ Perform Vibration Evaluation _____________ Perform Real-Time Formation Evaluation ______________ Collect Gas Data _______________ Collect FID Data _______________ Collect Mass Spectrometer Data ______________ Use Gas Data to Guide Horizontal Drilling ____________ Measure and Monitor Lagged Data _____________ Capture Mud/Cuttings ______________ Bag 2.5 KG Mud and Cuttings for Government ______________ Bag 2.5 KG Mud and Cuttings for Raw Sample _____________ Optionally Capture Reference Samples ______________ Bag 150-250 gram Washed Sample Every Sample Interval ______________ Create Washed and Dryed Sample Card Every Sample Interval ______________ Create Washed and Dryed Polycarbonate Tupe Every Sample Interval ______________ Create Client Specific Washed and Dryed Sample Every Sample Interval _____________ Describe Cuttings Geology ______________ Collect and Dry 50 Gram Wet Sample ______________ Evaluate Sample Under Microscope and Describe Geology _____________ Capture and Manage Cuttings Digital Images ______________ Capture and Process Digital Images of Cuttings _______________ Capture Pure White Light Digital Images of Cuttings _______________ Capture UltraViolet Digital Images of Cuttings _______________ Capture InfaRed Digital Images of Cuttings ______________ View and Comment on Digital Images _______________ View Digital Cuttings Images _______________ View and Crossreference Legacy Digital Images ________________ View and Crossreference Cuttings from Other Wells in the Area ________________ View and Crossreference Historical Cores from Other Wells in the Area ________________ View and Crossreference Other Legacy Data from Other Wells in the Area _______________ View and Crossreference Associated Digital Images ________________ View and Crossreference SEM Digital Images ________________ View and Crossreference Thin Section Digital Images ________________ View and Crossreference Petrography Digital Images ________________ View and Crossreference Other Associated Digital Images _______________ Comment on Digital Images ______________ Capture and Manage Knowledge Tied To Digital Images _______________ Capture and Database All Comments From All Who Review Digital Images _______________ Consolidate Descriptions For Digital Images _______________ Manage and Distribute Knowledge Tied To Digital Images ____________ Interpret Reservoir and Compare with Best Well Plan ___________ Measure and Monitor Downhole Parameters ___________ Account for Lag Between Surface and Downhole Measurements __________ Interpret and Cross-Plot in Real-Time __________ Integrate All Data and Modify Well Plan if Necessary
5.4 ________ Setup and Drill Hole
5.4.1 _________ Move In and Rig Up __________ Unload Substructure and Derrick __________ Raise Derrick __________ Install Mud Handling System __________ Install Pipe Rack __________ Install Living Quarters, Dog House, and Other Misc. __________ Set Up Storage and Supply
5.4.2 _________ Drill Hole __________ Attend to Logistics ___________ Acquire Mud Materials Just in Time ___________ Acauire Tublars Just in Time ___________ Acquire Bits Just in Time ___________ Acquire Fuel Just in Time ___________ Acquire Water Just in Time ___________ Acquire Misc. Items __________ Manage Mud System ___________ Manage Mud Weight ___________ Manage Mud Water Loss ___________ Manage Mud Flow Properties ___________ Manage Mud Solid Content ___________ Manage Mud Gas Content __________ Drill ___________ Manage Drill String and Bit ____________ Pick Up & Run Drill Collars / HW Drill Pipe to Match Program Weight on Bit ____________ Run In Necessary Stabilizers for Directional Control ____________ Install Downhole MWD and/or Motor ____________ Install Necessary Cross-Over Subs ____________ Pick Up and Run Drill Pipe ___________ Manage Trip Timing and Speed ____________ Decide When To Trip _____________ Decide to Change Bit ______________ Evaluate Bit History ______________ Evaluate Penetration Rate ______________ Evaluate Bit Torque ______________ Evaluate Formation Change ______________ Estimate Benefit of Bit Change _____________ Decide to Change BHA ______________ Determine History of Stabilizers ______________ Determine if Well is Off Course ______________ Determine if BHA Allows Proper Weight on Bit ______________ Determine Benefit for Changing BHA _____________ Decide to Replace Downhole Equipment _____________ Decide to Repair Drill String _____________ Decide to Stick Pipe _____________ Decide When Program Depth is Reached ____________ Make Sure Mud Weight is Within Program Parameters ____________ Unstick Pipe ____________ Stand Back / Pick Up Kelly ____________ Pull/Run Pipe at Safe Trip Speed to Avoid Swabbing / Surging ____________ Pull Out / Run in BHA at Safe Trip Speed to Avoid Swabbing / Surging ___________ Manage Weight on Bit and Bit Rotation Speed ____________ Modify Speed to Avoid Resonance ____________ Modify Speed to Match Rig Capabilities ____________ Modify Weight to Avoid Balling Up ____________ Modify Weight to rease Penetration Rate ____________ Modify Best Well Plan ___________ Manage Directional Control ____________ Monitor Well Deviation and Azimuth ____________ Determine if Well is On Course ____________ Modify Well Plan to Correct Course _____________ Adjust Weight and Rotary Speed _____________ Change Bottom Hole Assembly _____________ Switch to Bottom Hole Motor and Bent Sub ___________ Manage Mud Circulation Rate and Pressure ____________ Modify Circulation Rate to Clean Hole ____________ Modify Circulation Rate to Correct for Jet Failure ____________ Modify Circulation Rate to Adjust to Rig Capabilities ____________ Modify Best Well Plan Circulation Rate and Pressure ___________ Rotate Bit On Formation __________ Monitor Equipment and Progress ___________ Monitor Engines and Generators ___________ Monitor Mud Pumps ___________ Monitor Solids Control Equipment ___________ Monitor Fuel and Water ___________ Modify Drilling Plan __________ Prepare and Execute Mud Logging
5.4.3 _________ Run Logs
5.44 _________ Set Pipe and Cement and Pressure Test __________ Run Pipe ___________ Inspect and Clean Threads and Measure Each Joint ___________ Verify and Run Shoe Joint ___________ Verify and Run Float Joint ___________ Run Remaining Casing __________ Cement Pipe ___________ Verify Cement Composition and Pumping Schedule ___________ Install Cementing Head and Verify Cement Wiper Plugs ___________ Displace Cement ___________ Maintain Pressure on Cement ___________ Wait on Cement __________ Set Pipe ___________ Pick Up Pipe to Program Tension ___________ Hang Pipe in Well Head __________ Pressure Test ___________ Apply Program Pressure to Casing ___________ Observe Pressure Behavior ___________ Modify Well Plan to Correct Well Failing Pressure Test
5.45 _________ Drill Out Cement and PIT __________ Run in Hole with BHA and Drill Stream __________ Tag Top of Cement and Drill Cement, Float Collar and Float Shoe __________ Clean Out Rat Hole and Drill New Hole __________ Run Pressure Integrity Test
5.5 ________ Complete Well
5.5.1 _________ Design Completion __________ Generate Completion Option ___________ Select Tubing ___________ Select Perforation Parameters ___________ Select Packers ___________ Selecte Completion Fluid ___________ Select Packer Fluid ___________ Select Non-Conventional Techniques __________ Evaluate Completion Option __________ Select Best Completion Option
5.5.2 _________ Implement Completion
5.5.3 _________ Bring Well In

This is based on the work of Charley Rego and George Bruce, 17-21 July 1995. The drilling model is a subset of an activity model of all upstream exploration activities to and not including facilities. This activity model is the intellectual property of Walden 3-D, . As demonstrated with this example, subsets of this activity model provide an ideal mechanism for documenting and indexing the process portion of Best Practices.

Copyright © 2002 Walden 3-D, .
All rights reserved. Published in The United States of America
This page, or parts thereof, may not be reproduced in any form
without permission of the publisher, except by members of the Real Time Drilling Community of Interest:
Contract Number 020701

For further information contact:

Walden 3-D, ., P.O. Box 382, Barker, TX 77413-0382
- 281.579.0172 - facsimile: 281.579.2141 - cell: 713.542.2207 -
- URL: http://www.walden3d.com * e-mail: rnelson@walden3d.com -