Anadrill -_2_days_stuck_pipe_2nd

Stuck Pipe Prevention Prentice & Hill, LLC Second Day

Differential Sticking Causes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Solids Induced Pack-off ,[object Object],[object Object],UNCONSOLIDATED FORMATIONS Causes

Pack-off Due to Unconsolidated Formations Prevention ,[object Object],[object Object],[object Object],Plan / Anticipate:

Solids Induced Pack-off ,[object Object],[object Object],[object Object],[object Object],Causes MOBILE / PLASTIC FORMATIONS Formation Extrudes Into Well Bore Due to Overburden Forces. Prevention Proper Well Planning:

Solids Induced Pack-off Causes ,[object Object],[object Object],FRACTURED / FAULTED FORMATIONS Prevention Loose Chunks of Rock Fall into Well Bore Plan / Anticipate

Solids Induced Pack-off Causes ,[object Object],[object Object],OVER-PRESSURED SHALE COLLAPSE Prevention Shale “Pops” Off Wall Due to Pressure Plan / Anticipate

Solids Induced Pack-off Causes ,[object Object],[object Object],[object Object],REACTIVE FORMATIONS Prevention Mud Filtrate Reacts Chemically with Formation Plan / Anticipate

Solids Induced Pack-off Causes ,[object Object],[object Object],[object Object],POOR HOLE CLEANING Prevention Not Removing Cuttings From Well Bore

Mechanical / Wellbore Geometry Sticking Causes KEYSEATING ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Prevention

Mechanical / Wellbore Geometry Sticking Causes UNDERGAUGE HOLE ,[object Object],[object Object],[object Object],[object Object],[object Object],Prevention

Mechanical / Wellbore Geometry Sticking Causes LEDGES & DOGLEGS ,[object Object],[object Object],[object Object],[object Object],Prevention

Mechanical / Wellbore Geometry Sticking Causes SHOE JOINT BACKS OFF ,[object Object],[object Object],[object Object],Prevention

Mechanical / Wellbore Geometry Sticking Causes JUNK ,[object Object],[object Object],[object Object],Prevention Something Manmade is Loose in the Hole

Mechanical / Wellbore Geometry Sticking Causes CEMENT BLOCKS ,[object Object],[object Object],Hard Cement Falls In From Casing Shoe or From Open Hole Cement Plug Prevention

Mechanical / Wellbore Geometry Sticking Causes GREEN CEMENT ,[object Object],[object Object],Prevention Run BHA Into Un-set Cement

Mechanical / Wellbore Geometry Sticking Causes LINER & SQUEEZE CEMENTING ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Cementing Yourself in the Hole

Trend Analysis ,[object Object],[object Object],[object Object],[object Object],[object Object]

Recovery Our Best Preventive Efforts Have FAILED WE’RE STUCK !! What Do We Do Now?

Identifying the Problem: “Why are we stuck?” ,[object Object]

Problem Diagnosis ,[object Object],[object Object]

Solving the Problem: “What do we do now?” ,[object Object]

Solids Induced Stuck Pipe ,[object Object],[object Object],[object Object],[object Object],Formation Movement / Poor Hole Cleaning First Actions

Solids Induced Stuck Pipe ,[object Object],[object Object],[object Object],[object Object],Continued First Actions

Differential Sticking ,[object Object],[object Object],[object Object],[object Object],Overbalanced, Filter Cake, Contact Area First Actions

Mechanical Sticking ,[object Object],[object Object],[object Object],[object Object],Dogleg, Keyseat, Junk, Undergauge First Actions

Locating the Problem: “Where are we stuck? ,[object Object]

Pipe Stretch Equation L = Length of Free Pipe (ft)  L = Length of Stretch (in)  F = Incremental Force (lbs) W = Weight of Drill Pipe (lb/ft)

Locating the Problem: “Where are we stuck? ,[object Object],[object Object],[object Object]

Stuck Here Pull On DP Measure Stretch Here Measure Stretch Here Free Point Tool

Solids Induced Stuck Pipe ,[object Object],[object Object],Secondary Procedures

Differential Sticking ,[object Object],[object Object],[object Object],[object Object],Secondary Procedures

Pipe Releasing Agents Spotting Fluids ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Differential Sticking ,[object Object],[object Object],[object Object],[object Object],[object Object],Secondary Procedures

Mechanical Sticking ,[object Object],[object Object],Secondary Procedures

Acid Pills ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Secondary Procedures

Fresh Water Pills ,[object Object],[object Object],[object Object],[object Object],[object Object],Secondary Procedures

Drilling Jars - Benefits ,[object Object],[object Object],[object Object],[object Object]

Mechanical Jars ,[object Object],[object Object],[object Object],[object Object],[object Object]

Mechanical Jars - Advantages ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Mechanical Jars - Disadvantages ,[object Object],[object Object],[object Object],[object Object],[object Object]

Hydraulic Jars ,[object Object],[object Object],[object Object]

Hydraulic Jars - Advantages ,[object Object],[object Object],[object Object],[object Object],[object Object]

Hydraulic Jars - Disadvantages ,[object Object],[object Object],[object Object],[object Object],[object Object]

Reasons Jars Fail to Fire ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Reasons Jars Fail to Fire (cont.) ,[object Object],[object Object],[object Object]

Accelerators - Functions ,[object Object],[object Object],[object Object],[object Object]

Jar / Accelerator Placement Considerations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Placement - Vertical Holes ,[object Object],[object Object],[object Object],[object Object]

Placement - Deviated Holes ,[object Object],[object Object],[object Object],[object Object]

Jar Placement Programs ,[object Object],[object Object],[object Object],[object Object]

Fishing - Overshots ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Fishing - Spears ,[object Object],[object Object],[object Object],[object Object]

Fishing - Taps ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Fishing - Junk ,[object Object],[object Object],[object Object],[object Object],[object Object]

Fishing - Milling ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Washover Operations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Washover Shoes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Solving the Problem: “What do we do now?” ,[object Object],[object Object],[object Object],[object Object]

What Do We Do Now? Sidetrack or Fish? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Anadrill -_2_days_stuck_pipe_2nd

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Anadrill -_2_days_stuck_pipe_2nd