1、 GUIDE FOR THE CLASSIFICATION OF DRILLING SYSTEMS SEPTEMBER 2012 NOTICE NO. 2 December 2015 The following Changes become EFFECTIVE AS OF 1 DECEMBER 2015. (See http:/www.eagle.org for the consolidated version of the Guide for the Classification of Drilling Systems 2012, with all Notices and Corrigend
2、a incorporated.) Notes - The date in the parentheses means the date that the Rule becomes effective for new construction based on the contract date for construction, unless otherwise noted. (See 1/7.13.2.) SECTION 1 SCOPE AND CONDITIONS OF CLASSIFICATION 3 Suspension and Cancellation of Class (Revis
3、e Paragraph 1/3.7, as follows:) 3.7 Cancellation of Class (1 December 2015) If the circumstances leading to suspension of Class are not corrected within the time specified, Class will be cancelled. Class is cancelled immediately when drilling systems, subsystems, equipment, and/or components are ope
4、rated without having completed recommendations which were required to be dealt with before the drilling system was brought back into service. When Class has been suspended for a period of three (3) months due to overdue Annual, Special or other periodical surveys required for maintenance of Class; o
5、verdue Continuous Survey items; or overdue outstanding recommendations, the affected CDS Notation will be canceled. A longer suspension period may be granted for drilling systems, subsystems, equipment, and/or components which are either laid up, awaiting disposition of a casualty or under attendanc
6、e for reinstatement. 5 Class Notation (Revise Paragraph 1/5.1, as follows:) 5.1 ABS Class Notation (1 December 2015) Drilling systems, subsystems, equipment, and/or components that have been built, installed and commissioned to the satisfaction of the Surveyors to the full requirements of this Guide
7、, where approved by the Committee for service for the specified design environmental conditions, may be classed and distinguished in the ABS Record by the notation null CDS. ABSGUIDE FOR THE CLASSIFICATION OF DRILLING SYSTEMS .2012 1 Notice No. 2 December 2015 Upon request by the owner, null CDS can
8、 be reduced in scope. Following completion of the requirements to change the class scope, the existing null CDS may be exchanged for one or more of the following sub-class designations: null CDS(WCS) applies to the classification of well control system including well control equipment hardware and a
9、ssociated control systems. null CDS(DSD) applies to the classification of the derrick systems including drawworks, hoisting and drilling and motion compensating systems. null CDS(DSC) applies to the classification of the drilling fluid circulating system. null CDS(DSP) applies to the classification
10、of the specialized pipe and tubular handling systems. Note: null CDS(WCS+DSD) class designation would apply where the well control and derrick systems were classed and null CDS(DSC) and null CDS(DSP) were not selected. SECTION 2 DESIGN OF DRILLING SYSTEMS 7 Design Plans and Data (Revise Paragraph 2/
11、7.15, as follows:) 7.15 Burner/Flare Booms (Permanently Fitted) (1 December 2015) Submit the following documentation for the burner/flare boom fitted as part of the well control system: i) Design basis for the burner/flare boom, including: Descriptions of the burner flare boom and associated compone
12、nts Equipment list Equipment technical specifications and data sheets Load cases and limit states for all design and operating conditions Assumptions used in the design analysis of the burner flare boom structure and associated components Design conditions, including: - Environmental - Operating - S
13、urvival - Lifting, if applicable Combined load cases and limit states for all design and operating conditions Plans showing intended location of the boom on the installation Design references, codes, standards, or guidelines Design analysis methodology for the burner flare boom structure and associa
14、ted components, and component analyses including computer modeling and computer program used Design temperature (maximum, minimum) Material specifications and material properties for all load-bearing components and bolts (if bolted design), including CVN testing requirements, as applicable ii) Descr
15、iptions of all computer programs, analysis methodologies and limits, and other calculation procedures that will form the basis of the structural design and analysis 2 ABSGUIDE FOR THE CLASSIFICATION OF DRILLING SYSTEMS .2012 Notice No. 2 December 2015 iii) Structural analysis report: Design load dev
16、elopment and computer input for all design conditions Computer model geometry plots (group IDs, joint numbers, members and lengths, critical unity checks) Allowable stresses Computer stress analysis Computer output: support reactions, unity stress checks Justifications for any stress exceeding the s
17、tated allowable stress, as applicable iv) Structural drawings: General arrangement drawings Burner Flare Boom assembly drawings Geometry layout drawing; showing overall dimensions of burner flare boom and indicating the size of each member Detail drawings of the main structural elements of the burne
18、r flare boom, including: - Details and sizes for main structural elements - Material specifications and material properties for all load-bearing components and bolts (if bolted design), including CVN testing requirements, as applicable - Bolt connections and tightening procedures - Welding details a
19、nd other methods of connection Base plate and anchor bolt plan Bolts sheet SECTION 3 DRILLING SYSTEMS 11 Hoisting, Lifting, Rotating and Handling Systems 11.1 Derricks/Masts 11.1.2 Design Loads (Revise Item 3/11.1.2iii), as follows:) iii) (1 December 2015) Upon request, ABS may allow a 20% increase
20、in allowable stresses, as provided in API Spec 4F. If so requested, appropriate supporting calculations are to be submitted for review. (Revise Item 3/11.1.2iv), as follows:) iv) (1 December 2015) The Owner/Operator is required to specify the geographic region of operation, the static loads (dead we
21、ight, hook load, static rotary load, fluid load, setback loads, etc.) and dynamic loads (inertial, dynamic amplification, erection, transportation, wind, transit, motion, acceleration, seismic, etc.) on the derrick/mast, as required in API Spec 4F. Additionally, the following loads are also to be gi
22、ven consideration, where applicable: ABSGUIDE FOR THE CLASSIFICATION OF DRILLING SYSTEMS .2012 3 Notice No. 2 December 2015 a) The accumulation of ice and snow on a structure in increasing its dead load. b) The wind-induced load is to be included in the design analysis of the derrick/mast structure
23、and is to consider the following, as applicable: 1) The use of wind speeds higher than those provided in API Spec 4F, where required by the Owner/Operator, for regions not specified within API Spec 4F, ISO 19901-1, or API Bull 2INT-MET. 2) The minimum wind velocity for unrestricted offshore service
24、for all normal drilling and transit conditions is not to be less than 36 m/s (70 knots), as specified in 3-1-3/1.3 in the ABS MODU Rules. It should be noted that wind velocities in the ABS MODU Rules are 1 minute average velocities and therefore these are to be converted to 3 second gust velocities
25、for use in the structural analysis of the derrick. For host structures other than mobile offshore drilling units, such as production unit or fixed structure, the transit conditions are to be in compliance with ABS FPI Rules and ABS Facilities Rules. 3) For the ABS MODU Rules unrestricted service, th
26、e wind speed to be considered in the Survival Case (no hook load or setback loads) is not to be taken less than 51.4 m/sec (100 knots). It should be noted that wind velocities in the ABS MODU Rules are 1 minute average velocities and therefore these are to be converted to 3 second gust velocities fo
27、r use in the structural analysis of the derrick. 4) If only CDS notation is required, it is not mandatory to use wind velocity higher than 51.4 m/sec (100 knots) for regional requirements as specified in API Spec 4F, ISO 19901-1, or API Bull 2INT-MET, unless required by Owner/Operator. When requeste
28、d by Owner/Operator, higher wind velocity is to be used in accordance with regional requirements as specified in API Spec 4F, ISO 19901-1, or API Bull 2INT-MET. 5) When other static and/or dynamic loading conditions are proposed by the Owner/Operator, technical justification in accordance with 1/7.7
29、 of this Guide is to be applied, on a case-by-case basis. c) The use of a higher rated setback, where required by the operational demands of the Owner/Operator. d) Dynamic loading due to motion of the hull are to be provided, as specified below, by the Owner/Operator or designer as specified in API
30、Spec 4F for installation, transit, operation, survival condition of the floating units, as applicable. The above conditions are not to be less than those specified in the ABS MODU Rules, ABS Steel Vessel Rules, ABS Facilities Rules, ABS Barge Rules, and ABS FPI Rules. If information on the motion of
31、 the hull is unavailable, the following are to be used. Field Transit: 70 knots wind plus 6-degree single amplitude roll or pitch at the natural period of the unit. Ocean Tow: 70 knot wind plus 15-degree single amplitude roll or pitch at a 10-second period. It should be noted that wind velocities me
32、ntioned above are 1 minute average velocities and they are to be converted to 3 second gust velocities to be used in the structural analysis of the derrick. 1) For the calculation of dynamic loading induced by floating hull motion, the vertical distance and the horizontal distance, where applicable,
33、 between the center of flotation of the host drilling unit and the center of gravity of the derrick are to be provided by the Owner/Operator to the derrick designer and are to be used in the calculations. 4 ABSGUIDE FOR THE CLASSIFICATION OF DRILLING SYSTEMS .2012 Notice No. 2 December 2015 2) The h
34、orizontal distance is to be considered in addition to the vertical distance in the transit condition for self-elevating drilling units. 3) If motion analysis for floating structure is performed, the appropriate acceleration data from the analysis are to be provided for ABS review. (Renumber Paragrap
35、h 3/13.9 as Subsection 3/13 and revise, as follows:) 13 Classified Areas Classified areas are to be in accordance with the ABS MODU Rules, API RP 500 or API RP 505 and consideration given to the following: i) Hatches, companionways and ventilators within ten feet of classified areas are to be secure
36、d gas tight for the duration of the test program. ii) Electrical equipment within classified areas is to be suitable for the hazard or de-energized. iii) (1 September 2012) Areas around valves, socket hammer unions, and articulated piping are to be designated as Class 1 Division 2 (Zone 2) for a dis
37、tance of 1 m. (3 ft). iv) (1 December 2015) Fired heaters and diesel driven machinery are to have air intakes located at least ten (10) feet from any classified area. v) Exhausts are to be equipped with spark arresting devices and are to discharge outside classified areas. (Remainder of Subsection 3
38、/13 is deleted.) SECTION 4 SCOPE OF DRILLING SYSTEM AND EQUIPMENT APPROVAL (Revise Section 4, Table 1, as follows:) TABLE 1 Approval Codes for Drilling Systems and Equipment (1 December 2015) Well Control Subsea and Surface, as applicable (WCS) (Revise title and the following item:) Equipment Compon
39、ents Design Review & Approval Letter (7)IRC (4)MAC Survey at Vendor(10)CoC/ SR Testing at Vendor (1, 3, 10)Testing On-board Testing Remarks LMRP (WCS) (1 December 2015) Riser Connectors for BOP Stack X X X X SR & CoC a and b1 a and b2 See Note 2 ABSGUIDE FOR THE CLASSIFICATION OF DRILLING SYSTEMS .2
40、012 5 Notice No. 2 December 2015 (Relocate the following items from “Well Test” and revise, as follows:) Equipment Components Design Review & Approval Letter (7)IRC (4)MAC Survey at Vendor(10)CoC/ SR Testing at Vendor (1, 3, 10)Testing On-board Testing Remarks Burner/Flare (1 December 2015) Burner/F
41、lare Boom X X X SR a Burner/Flare (1 December 2015) Burner/Flare Piping System X SR a Burner/Flare (1 December 2015) Burner/Flare Control System/Console/Panel X X X SR a a If hydraulic or pneumatic controls, then “b1” and “b2” are required, as applicable “a” is the functional testing and failure mod
42、es validation, as required Marine Drilling Riser (WCS) (Revise title only. Contents of table remain unchanged.) Marine Riser Tensioning System (DSD) (Inset new title before the following item. Contents of table remain unchanged.) Equipment Components Design Review & Approval Letter (7)IRC (4)MAC Sur
43、vey at Vendor(10)CoC/ SR Testing at Vendor (1, 3, 10)Testing On-board Testing Remarks Riser Tensioning System Assembled Riser Tensioning System SR a and b2 Commissioning test to verify proper integrity and functionality of assembled Riser Tensioning System Conductor Tensioning System/Unit (CTS/CTU)
44、(DSD) (Revise title only. Contents of table remain unchanged.) Drilling String Compensators (DSD) (Revise title only. Contents of table remain unchanged.) Bulk Storage, Circulation and Transfer System (DSC) (Revise title only. Contents of table remain unchanged.) 6 ABSGUIDE FOR THE CLASSIFICATION OF
45、 DRILLING SYSTEMS .2012 Notice No. 2 December 2015 Cementing System (WCS) (Inset new title before the following item. Contents of table remain unchanged.) Equipment Components Design Review & Approval Letter (7)IRC (4)MAC Survey at Vendor(10)CoC/ SR Testing at Vendor (1, 3, 10)Testing On-board Testi
46、ng Remarks Cementing Assembled Cementing System SR a and b2 Commissioning test to verify proper integrity and functionality of assembled Cementing System Tubular Handling, and Rotating (DSP) (Inset new title before the following item. Contents of table remain unchanged.) Equipment Components Design
47、Review & Approval Letter (7)IRC (4)MAC Survey at Vendor(10)CoC/ SR Testing at Vendor (1, 3, 10)Testing On-board Testing Remarks Tubular Handling Assembled Tubular Handling System SR a and b2 Commissioning test to verify proper integrity and functionality of assembled Tubular Handling System (Delete
48、entire “Well Test” section.) Common Systems and Equipment (continued) (All Sub-notations as applicable) (Revise title and the following items:) Equipment Components Design Review & Approval Letter (7)IRC (4)MAC Survey at Vendor(10)CoC/ SR Testing at Vendor (1, 3, 10)Testing On-board Testing Remarks
49、Pressure Vessels Air Receivers, Accumulators, Heat Exchangers, etc. ID 150 mm (6 in.) Design review and testing to be in accordance with 6-1-5/Table 1 (except for “Material tests to be witness by Surveyor”) of the ABS MODU Rules Pumps (1 December 2015) Support Systems, Hydraulic Pumps(11)X SR a Rotating Electrical Machinery Rotating Electrical Machines with rated power of 100 kW and over X X X SR f a See 3/21.3i) ABSGUIDE FOR THE CLASSIFICATION OF DRILLING SYSTEMS .2012 7 Notice No. 2 December 2015 SECTION
