IADC Drilling Manual Part 2 ppsx

A-84 International Association of Drilling Contractors IADC Drilling Manual - Eleventh Edition PN (Plugged Nozzle) - (Fig. A4-20) Figure A4-20 Plugged Nozzle, PN This dulling characteristic does not describe the cutting structure but can be useful in providing information about a bit run. A plugged nozzle can lead to reduced hydraulics or force a trip out of the hole due to excessive pump pressure. Plugged nozzles can be caused by: Jamming the bit into fill with the pump off. Solid material going up the drill string through the bit on a connection and becoming lodged in a nozzle when circulation is resumed. Solid material pumped down the drill string and becoming lodged in a nozzle. A-85 International Association of Drilling Contractors Chapter A: Bit Classification and Grading RG (Rounded Gage) - (Fig. A4-21) Figure A4-21 Rounded Gauge, RG This dulling characteristic describes a bit that has experienced gauge wear in a rounded manner, but will still drill a full size hole. The gauge inserts may be less than nominal bit diameter but the cone backfaces are still at nominal diameter. Rounded Gage can be caused by: Drilling an abrasive formation with excessive RPM. Reaming an under gauge hole. A-86 International Association of Drilling Contractors IADC Drilling Manual - Eleventh Edition SD (Shirttail Damage) - (Fig. A4-22) Figure A4-22 Shirttail Damage, SD Shirttail damage may be different than junk damage and is not a cutting structure dulling characteristic. Shirttail wear can lead to seal failures. Some causes of shirttail damage are: Junk in the hole. Reaming under gauge hole in faulted or broken formations. A pinched bit causing the shirttails to be the outer most part of the bit. Poor hydraulics. High angle well bore. A-87 International Association of Drilling Contractors Chapter A: Bit Classification and Grading SS (Self Sharpening Wear) - (Fig. A4-23) Figure A4-23 Self Sharpening Wear, SS This is a dulling characteristic which occurs when cutters wear in a manner such that they retain a sharp crest shape. TR (Tracking) - (Fig. A4-24) Figure A4-24 Tracking Wear, TR This dulling characteristic occurs when the teeth mesh like a gear into the bottomhole pattern. The cutter wear on a bit that has been tracking will be on the leading and trailing flanks. The cone shell wear will be between the cutters in a row. A-88 International Association of Drilling Contractors IADC Drilling Manual - Eleventh Edition Tracking can sometimes be alleviated by using a softer bit to drill the formation and/or by reducing the hydrostatic pressure if possible. Tracking can be caused by: Formation changes from brittle to plastic. Hydrostatic pressure that significantly exceeds the formation pressure. WO (Washed Out Bit) - (Fig. A4-25) Figure A4-25 Bit Washout, WO Bit washouts are not cutting structure dulling characteristics but can provide important information when used as an "Other" dulling characteristic. This can occur at anytime during the bit run. If the bit weld is porous or not closed, then the bit will start to washout as soon as circulation starts. Often the welds are closed but crack during the bit run due to impact with bottom or ledges on connections. When a crack occurs and circulation starts through the crack, the washout is established very quickly. A-89 International Association of Drilling Contractors Chapter A: Bit Classification and Grading WT (Worn Teeth) (Fig. A4-26) Figure A4-26 Worn Teeth, WT This is a normal dulling characteristic of the tungsten carbide insert bits as well as for the stoft tooth bits. When WT is noted for steel tooth bits, it is also often appropriate to note self sharpening (SS) or flat crested (FC) wear. NO (No Dull Characteristics) This code is used to indicate that the dull shows no sign of the other dulling characteristics described. This is often used when a bit is pulled after a short run for a reason not related to the bit, such as a drill string washout. B-1 International Association of Drilling Contractors Chapter B: Drill String Chapter B Drill String B-2 International Association of Drilling Contractors IADC Drilling Manual - Eleventh Edition Table of Contents - Chapter B Drill String Preface B-5 B1. Drill String B-6 Introduction B-6 I. Weld-on Tool Joints B-6 B2. Steel Drill Pipe B-45 B3. Tool Joints Care And Handling B-54 I. Cleaning and Inspection B-54 II. Picking Up the Drill String B-55 III. Thread Compounds B-58 IV. Breaking In New Tool Joints B-58 V. Tripping B-59 VI. Laying Down Drill String B-67 VII. Damage and Failures Cause Prevention B-69 VIII. Repair of Tool Joints B-87 IX. Emergency Procedures B-93 X. Transportation B-94 XI. Storage B-95 XII. Floor Handling Procedures B-96 B4. Drill String Operating Limits B-104 I. Fatigue and Lateral Forces caused by Dog Legs and Floating Vessels B-104 II. Fatigue Caused by Other Factors B-115 III. Critical Rotary Speed B-120 IV. Collapsed Pipe From Drill Stem Test and BOP Test B-120 V. Transition from Drill String to Drill Collars B-121 VI. Maximum Allowable Pull and Rotary Torque B-121 VII. Make up Torque versus Drilling Torque B-123 IX. Dynamic Loading of Drill Pipe during Tripping B-125 X. Biaxial Loading of Drill Pipe B-125 XI. Drill String Design B-126 XII. References B-126 B5. Drill String Corrosion B-127 I. Introduction B-127 Il. Corrosion B-127 III. Sulfide Stress Cracking B-132 IV. Drilling Fluids Containing Oil B-135 B6. Drill String Inspection And Classification B-136 I. Purpose B-136 II. Drill String Marking and Identification B-136 III. Drill Pipe And Tubing Work Strings B-136 B-3 International Association of Drilling Contractors Chapter B: Drill String IV. Tool Joints B-144 B7. Aluminum Drill String B-148 Introduction B-148 II. Installation and Removal of Tool Joints B-148 III. Aluminum Drill Pipe B-148 IV. Drill String Care and Handling B-150 V. Drill String Maintenance B-151 VI. Drill String Operating Limits B-151 B-8 Glossary Of Drill String Terms B-154 B-4 International Association of Drilling Contractors IADC Drilling Manual - Eleventh Edition This Page Left Intentionally Blank [...]... Drilling Contractors B -29 IADC Drilling Manual - Eleventh Edition Figure B1-15 Figure B1-16 Figure B1-17 B-30 International Association of Drilling Contractors Chapter B: Drill String Figure B1-18 Figure B1-19 Figure B1 -20 International Association of Drilling Contractors B-31 IADC Drilling Manual - Eleventh Edition Figure B1 -21 Figure B1 -22 Figure B1 -23 B- 32 International Association of Drilling Contractors... of Drilling Contractors B-19 International Association of Drilling Contractors For Full Size Image of this Table Click Here Table B1-7 Minimum OD and Make-up Torque of Weld-on Tool Joints IADC Drilling Manual - Eleventh Edition B -20 For Full Size Image of this Table Click Here International Association of Drilling Contractors Chapter B: Drill String B -21 IADC Drilling Manual - Eleventh Edition B -22 ... diameters B -26 International Association of Drilling Contractors Chapter B: Drill String Figure B1-6 Figure B1-7 Figure B1-8 International Association of Drilling Contractors B -27 IADC Drilling Manual - Eleventh Edition Figure B1-9 Figure B1-10 Figure B1-11 B -28 International Association of Drilling Contractors Chapter B: Drill String Figure B1- 12 Figure B1-13 Figure B1-14 International Association of Drilling. .. Figure B1 -23 B- 32 International Association of Drilling Contractors Chapter B: Drill String Figure B1 -24 Figure B1 -25 Figure B1 -26 International Association of Drilling Contractors B-33 IADC Drilling Manual - Eleventh Edition Figure B1 -27 Figure B1 -28 Figure B1 -29 B-34 International Association of Drilling Contractors ... Association of Drilling Contractors Table B1-4 Tool Joints on High Strength Drill Pipe International Association of Drilling Contractors Chapter B: Drill String B-13 IADC Drilling Manual - Eleventh Edition B-14 For Full Size Image of this Table Click Here International Association of Drilling Contractors Chapter B: Drill String Notes on Table B1-4 1 Tool Joint Plus 29 .4' of Drill Pipe 2 Tensile Yield... International Association of Drilling Contractors For Full Size Image of this Table Click Here International Association of Drilling Contractors Chapter B: Drill String B -23 IADC Drilling Manual - Eleventh Edition Notes on Table B1-7 1) The use of outside diameters (OD) smaller than those listed in the table may be acceptable on slim hole (SH) tool joints due to special service requirements 2) Tool joint with... Value Prevailing B-10 International Association of Drilling Contractors Table B1-3 Tool Joints on Heavy Weight Drill Pipe - Grade 75 For Full Size Image of this Table Click Here International Association of Drilling Contractors Chapter B: Drill String B-11 IADC Drilling Manual - Eleventh Edition Notes on Table B1-3 1 Tool Joint Plus 29 .4' of Drill Pipe 2 Tensile Yield Strength of Drill Pipe Based on 75,000... International Association of Drilling Contractors B-7 International Association of Drilling Contractors For Full Size Image of this Table Click Here Table B1-1 Tool Joints on Standard Weight Drill Pipe - Grade 75 IADC Drilling Manual - Eleventh Edition B-8 Table B1 -2 Tool Joints on Light Weight Drill Pipe - Grade 75 For Full Size Image of this Table Click Here International Association of Drilling Contractors... Table Click Here International Association of Drilling Contractors Chapter B: Drill String B-9 IADC Drilling Manual - Eleventh Edition Notes on Table B1 -2 1 Tool Joint Plus 29 .4' of Drill Pipe 2 Tensile Yield Strength of Drill Pipe Based on 75,000 psi 3 Tensile Yield Strength of the Tool Joint Pin is based on 120 ,000 psi Yield and the Cross Sectional Area at the Root of the Thread 5/8 inch from the Shoulder... drill pipe may be adequate for much drilling service Figure B1 -2 and Figure B1-5 depict the interchangeability of the older API rotary shouldered connection style and the current series referred to as the number style or numbered connection, NC Figure B1 -2 Tool Joint Interchangeability Chart B -24 International Association of Drilling Contractors Chapter B: Drill . A-84 International Association of Drilling Contractors IADC Drilling Manual - Eleventh Edition PN (Plugged Nozzle) - (Fig. A4 -20 ) Figure A4 -20 Plugged Nozzle, PN This dulling characteristic. string washout. B-1 International Association of Drilling Contractors Chapter B: Drill String Chapter B Drill String B -2 International Association of Drilling Contractors IADC Drilling Manual - Eleventh Edition Table. Torque versus Drilling Torque B- 123 IX. Dynamic Loading of Drill Pipe during Tripping B- 125 X. Biaxial Loading of Drill Pipe B- 125 XI. Drill String Design B- 126 XII. References B- 126 B5. Drill