IADC Drilling Manual Part 5 docx

E-10 International Association of Drilling Contractors IADC Drilling Manual - Eleventh Edition Figure E2-1a Dimensions and Nomenclature of Master and Pin Drive Bushings E-11 International Association of Drilling Contractors Chapter E: Pipe Handling Equipment Figure E2-1b Dimensions and Nomenclature of Master and Square Drive Bushings E-12 International Association of Drilling Contractors IADC Drilling Manual - Eleventh Edition Table E2-1 Master and Kelly Drive Bushing Dimensions B. Master Bushings Dimensions for square drive master bushings and for pin drive master bushing shall be shown in Figure E2-1 and Table E2-1 (based on Section 13 API Spec 7, August 1990). E-13 International Association of Drilling Contractors Chapter E: Pipe Handling Equipment C. Pipe Slips Pipe slips shall have a taper of 4"/ foot on diameter and other suitable dimensions to permit operation in standard master bushings. Figure E2-2 Drill Pipe Slips Taper II. Care And Maintenance A. Kelly Drive Bushing There are two basic designs of kelly drive bushings single and double plane rollers. E-14 International Association of Drilling Contractors IADC Drilling Manual - Eleventh Edition 1. In the first design, the drive rollers are in a single plane. Depending on the manufacturer, the kelly bushing may have a split or solid body casing. a. In the split body design, the roller pins are supported in the body journals and clamped by top nuts which bolt the body halves together. To replace the roller assemblies, the cover is removed and the rollers are accessible. b. In a solid cast body, the roller pins are supported by replaceable sleeves. To remove a roller assembly, retaining pins are removed, the roller pin taken out from the side, and the roller removed from the back. 2. The second basic design of kelly drive bushings used two rollers for each driving surface on the kelly. The rollers are stacked one above the other in "cages". All roller pins and bearings are part of this cage assembly. the cages are removable from the bushing body. The two plane roller bushing for hex kellys is adjustable for kelly and bushing wear. The two plane roller bushing for square kellys is not adjustable. 3. There are several aspects of maintenance of the kelly drive bushing which must concern the floor crew. a. Lubrication to reduce wear is the most important aspect of maintenance. As a rule, this is accomplished with a grease gun on fittings built into the bushing. This can be done on each tour or on a daily basis. b. On split body type bushings, it is very important to keep the top nuts tight. This keeps the roller pins from working in the body journal areas. c. Certain adjustments can be made on some two plane roller bushings to compensate for normal wear. In this type bushing, for a hex kelly, roller cages set on a stack of "shims" in the drive bushing body. The number of shims used determines the position of the roller cages on mating tapers between the cages and the bushing body. Each set of shims added or removed changes the working diameter of the kelly bushing by 1/32 of an inch. d. Regardless of the bushing type, it must be inspected periodically for wear. Check with the manufacturer for maintenance and inspection instruction. e. After inspection, certain parts may need to be replaced. These parts can be removed and replaced on the rig floor by the floor crew. See Figure E2-3 for Kelly Bushing Replacement Parts. E-15 International Association of Drilling Contractors Chapter E: Pipe Handling Equipment Figure E2-3 Kelly Bushing Replacement Parts B. Master Bushings Much can be done to prevent cutting, gouging and bottlenecking of drill pipe by proper maintenance of master bushings and rotary slips. This will prevent unnecessary downgrading and discarding of pipe as well as minimizing washouts and other types of downhole failures. The effects of worn rotary tables, master bushings and rotary slips can be seen in Figure E2-4. E-17 International Association of Drilling Contractors Chapter E: Pipe Handling Equipment Figure E2-5 Use of Rotary Slips on Wrong Size Pipe Slips that are smaller than the pipe will damage the pipe and the corners of slips as well as risk dropping a string of pipe. Slips that are too large will not contact the pipe all the way around. This risks dropping the pipe and destroys the center part of the slips gripping surface. E-18 International Association of Drilling Contractors IADC Drilling Manual - Eleventh Edition Figure E2-6 Effect of Stopping Pipe with Slips The downward motion of the drill pipe must be stopped with the drawworks brakes, not with the slips. The draw- ing shows the effects of stopping the motion of the pipe with slips. This can occur when the floor hands are not careful to set the slips at the proper time when the driller has stopped the pipe. Do not let the slips "ride" on the pipe while the pipe is being pulled out of the hole. This practice accelerates the wear on the gripping elements of the slip. It also risks having the slip ejected from the master bushing bowl when a tool joint comes through and causing possible injury to personnel. New or "like new" inserts carry a concentrated load and deeply penetrate the pipe. Resharpened inserts carry no load. Inserts which carry a concentrated load are forced into slip bodies resulting in permanent damage to slips. E-19 International Association of Drilling Contractors Chapter E: Pipe Handling Equipment Figure E2-7 Effect of Using Uneven Gripping Elements in Slip Bodies Be careful not to catch the tool joint box in the slips when the driller slacks off. This often happens when coming out of the hole and the driller does not pick up high enough for the slips to fall around the pipe properly. This can ruin the slips, damage the tool joint box and damage the body of the pipe. E-20 International Association of Drilling Contractors IADC Drilling Manual - Eleventh Edition Figure E2-8 Effect of Setting Slips on Tool Joints Routine care and Maintenance will extend the service life of the drill pipe slips, protect the drill pipe and reduce the danger of sticking slips. Figure E2-9 indicates points of maintenance and lubrication. [...]... Contractors F-11 IADC Drilling Manual - Eleventh Edition F-12 International Association of Drilling Contractors Chapter F: Drawworks Brakes International Association of Drilling Contractors F-13 IADC Drilling Manual - Eleventh Edition F-14 International Association of Drilling Contractors Chapter F: Drawworks Brakes International Association of Drilling Contractors F- 15 IADC Drilling Manual - Eleventh... of Drilling Contractors F-7 IADC Drilling Manual - Eleventh Edition Tables Related to Brake Rim Wear: Tables F-xx F-8 International Association of Drilling Contractors Chapter F: Drawworks Brakes International Association of Drilling Contractors F-9 IADC Drilling Manual - Eleventh Edition F-10 International Association of Drilling Contractors Chapter F: Drawworks Brakes International Association of Drilling. .. Association of Drilling Contractors IADC Drilling Manual - Eleventh Edition Also, there is considerable difference in design by various manufacturers Even though radii are recommended by API Spec SA, shown in Figure E5-1, the differences in design will vary the downgrading based on wear The change in rating due to wear by three manufacturers is shown in Figure E5-3, Figure E5-4, Figure E5 -5 Figure E5-3 Hook.. .IADC Drilling Manual - Eleventh Edition 4 Spare parts are readily available to repair all slips of recent manufacture Normally the inserts, dies or liners are the parts most frequently requiring replacement Never intermix new inserts with worn or resharpened inserts Section B4 of this manual provides additional information concerning resharpened inserts 5 To maintain fully functionable... Association of Drilling Contractors E-39 Chapter F: Drawworks Brakes Chapter F Drawworks Brakes International Association of Drilling Contractors F-1 IADC Drilling Manual - Eleventh Edition Table of Contents - Chapter F Drawworks Brakes Introduction F-3 I Maintenance Procedures F-4 II Brake Linings (Blocks) F -5 III Brake Bands F -5 IV Brake... Association of Drilling Contractors Chapter E: Pipe Handling Equipment E5 Elevator Links, Block, Hook And Swivel Specifications I Specifications Recommended radii for various blocks, bails, links, and link ears are specified in Table E5-1 and Figure E5-1 Table E5-1 Hoisting Tool Contact Surface Radii International Association of Drilling Contractors E-31 Chapter E: Pipe Handling Equipment Figure E5-1b Surface... International Association of Drilling Contractors E-33 IADC Drilling Manual - Eleventh Edition Figure E5-1c Surface Radii on Hook & Swivel Ball These recommendations cover hoisting tools used in drilling and tubing hooks All other workover tools are excluded II Rating Change Due To Wear-links Based on recommendations on links, it is possible to approximate downrating due to wear Figure E5-2 indicates the rating... Association of Drilling Contractors E- 25 IADC Drilling Manual - Eleventh Edition Figure E3-3 Drill Collar Elevator B Care and Maintenance 1 Effect of Wear When the elevator shoulder on a drill collar is new it is square and has sufficient area in contact with the elevator See Figures E3-1 and Table E3-2 for suggested dimensions on new drill collars and elevators E-26 International Association of Drilling. .. Table 4.2 2 Dimension DsE from API Spec 7, Appendix H International Association of Drilling Contractors E-23 IADC Drilling Manual - Eleventh Edition B Cause and Result of Wear 1 Square Shoulder Elevators Square shoulder elevators in heavy use will wear or work harden under the repeated loads of the tool joint or collar During drilling operations, the square shoulder of both the elevator and tool joint gradually... of elevator open and measure at largest part of top bore straight across between link arms This method will measure total wear in bore (of which there will be very little), and wear on hinge pin and latch surfaces Wear should not be allowed to go above 1/32 inch on elevators for 5- 5/8 inch and smaller drill collars and 1/16 inch for drill collars larger than 5- 5/8 inch 2 Side-Door Elevator: Latch elevator, . of Drilling Contractors IADC Drilling Manual - Eleventh Edition 4. Spare parts are readily available to repair all slips of recent manufacture. Normally the inserts, dies or liners are the parts. risks dropping the pipe and destroys the center part of the slips gripping surface. E-18 International Association of Drilling Contractors IADC Drilling Manual - Eleventh Edition Figure E2-6 Effect. Association of Drilling Contractors IADC Drilling Manual - Eleventh Edition Figure E2-1a Dimensions and Nomenclature of Master and Pin Drive Bushings E-11 International Association of Drilling Contractors Chapter