NORSOK STANDARD
SYSTEM REQUIREMENTS
WIRELINE EQUIPMENT
D-SR-008 Rev. 1, October 1996
Please note that whilst every effort has been made to ensure the accuracy of the NORSOK standards neither OLF nor TBL or any of their members will as sume liability for any use thereof.
Wireline equipment
D-SR-008 Rev. 1, October 1996
CONTENTS 1 FOREWORD
2
2 SCOPE
2
3 NORMATIVE REFERENCES
2
4 DEFINITIONS AND ABBREVIATIONS 4.1 Definitions 4.2 Abbreviations
2 2 3
5 FUNCTIONAL REQUIREMENTS 5.1 General 5.2 Equipment/Schematic/Borderline 5.3 Process/Ambient conditions 5.4 Performance and Operational requirements 5.5 Maintenance requirements 5.6 Layout requirements 5.7 Interface requirements
3 3 3 3 4 4 4 4
ANNEX A: WIRELINE UNIT REQUIREMENTS
5
ANNEX B: WELL CONTROL SYSTEM REQUIREMENTS
7
ANNEX C: PRIMARY WELL CONTROL SYSTEM
8
ANNEX D: SECONDARY WELL CONTROL EQUIPMENT
9
ANNEX E: TERTIARY WELL CONTROL SYSTEM
9
ANNEX F : SLICK, BRAIDED AND ELECTRIC LINE REQUIREMENTS
9
ANNEX G: DOWNHOLE TOOLS REQUIREMENTS
10
ANNEX H: MINIMUM DOCUMENTATION REQUIRED
11
ANNEX I : DATA ACQUISITION SYSTEM
12
NORSOK standard
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Wireline equipment
1
D-SR-008 Rev. 1, October 1996
FOREWORD
NORSOK (The competitive standing of the Norwegian offshore sector) is the industry initiative to add value, reduce cost and lead time and remove unnecessary activities in offshore field developments and operations. The NORSOK standards are developed by the Norwegian petroleum industry as a part of the NORSOK initiative and are jointly issued by OLF (The Norwegian Oil Industry Association) and TBL (Federation of Norwegian Engineering Industries). NORSOK standards are administered by NTS (Norwegian Technology Standards Institution). The purpose of this industry standard is to replace the individual oil company specifications for use in existing and future petroleum industry developments, subject to the i ndividual company's review and application. The NORSOK standards make extensive references to international standards. Where relevant, the contents of this standard will be used to provide input to the international standardization process. Subject to implementation into international standards, this NORSOK standard will be withdrawn. Annexes are normative.
2
SCOPE
This standard describes functional, performance and operational requirements for slickline, braided line, cased and open hole logging equipment.
3
NORMATIVE REFERENCES
ISO 10423 API Spec 9A NACE MR-0175
Valves, Wellhead and Christmas Tree Equipment Specification for Wire Rope Sulfide Stress Cracking Resistant Metallic Materials for Oil Field Equipment
4
DEFINITIONS AND ABBREVIATIONS
4.1
Definitions
The well control system is divided in the following three (3) distinct logic groups: Primary well control system for wireline operations. This is the stuffing box or grease injection • head. Secondary well control system. This system consists of minimum one (1) wireline ram for • slickline and two (2) wireline rams for braided line. Tertiary well control system (safety head). An independent operated shear/se al BOP located as • close as possible to the wellhead. Alternatively, a x-mas tree gate valve with documented wire cutting capabilities will be equal to an independent shear seal. Work program. This document contains the detailed work steps, requirements and guidelines for • a specific wireline job.
NORSOK standard
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Wireline equipment
Shall Should May Can
4.2
ESD BOP LL PM SF
D-SR-008 Rev. 1, October 1996
Shall is an absolute requirement which shall be followed strictly in order to conform with the standard. Should is a recommendation. Alternative solutions having the same functionality and quality are acceptable. May indicates a course of action that is permissible within the limits of the standard (a permission). Requirements are conditional and indicates a possibility open to the user of the standard.
Abbreviations
Emergency Shut Down Blowout Preventer Load Limit Preventive Maintenance Safety Factor
5
FUNCTIONAL REQUIREMENTS
5.1
General
The wireline unit, well control equipment and associated equipment shall be suitable for the job and its intended purpose as specified in the work program, and additional requirements defined by receiver of service with reference to section 5.3. For well control equipment ISO 10423 applies as far as relevant. For slickline API 9A applies as far as relevant. 5.2
Equipment/Schematic/Borderline
The system shall comprise of the following main items: Wireline unit including power pack. • Well control system. • Depth & Weight indicator system. • Slickline, braided line & electric line • Grease injection skid • Downhole tools. • Test pump • Wellhead pump • 5.3
Process/Ambient conditions
The well control system with associated valves, hoses and piping shall be designed as required for the following alternative conditions: Well pressure; bar ( psi) Wellhead temperature; °C (°F) Operating temperature; °C (°F) Formation fluids CO2 Oil & water based drilling muds Diesel Glycol NORSOK standard
345 (5,000) 120 (250) -10 (14) Yes Yes Yes Yes Yes
690 (10,000) 120 (250) -10 (14) Yes Yes Yes Yes Yes
1034 (15,000) 177 (350) -10 (14) Yes Yes Yes Yes Yes Page 3 of 12
Wireline equipment
Methanol Acid (inhibited) Cement slurry Nitrogen
D-SR-008 Rev. 1, October 1996 Yes Yes Yes Yes
Yes Yes Yes Yes
Yes Yes Yes Yes
For conditions where H 2S service is required, NACE MR-0175 applies (optional).
5.4
Performance and Operational requirements
Wireline Unit including Power Pack: Well Control System: Slickline, braided line & electric line: Downhole tools: 5.5
Ref. Annex A Ref. Annex B, C, D and E Ref. Annex F Ref. Annex G
Maintenance requirements
The supplier shall have established a : Maintenance program with defined frequencies and work scopes. • Re-certification program • 5.6
Layout requirements
The supplier shall ensure that the following provisions are taken care of on the work location: Securing the wireline area • Adequate escape ways • Sufficient illumination • Securing of the riser/lubricator sections for lateral support • Securing the high pressure lines • Verification of all wireline equipment to function as intendent • Location of the second control panel for the secondary well control system in a safe area • Location of the third and independent control panel for the tertiary well control system in a safe • area Location of the wireline ESD panel in safe area • 5.7
Interface requirements
Mechanic, electric, hydraulic and pneumatic interface connections shall be compatible with rig or platform connections
NORSOK standard
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Wireline equipment Annex A
D-SR-008 Rev. 1, October 1996
ANNEX A: WIRELINE UNIT REQUIREMENTS (NORMATIVE) Unit Minimum pull capacity : • - Slickline, 0.108”, 0.125” - 80% of breaking strentgh - Braided/electric cable, 3/16”, 7/32” - 80% of breaking strength - Braided/Electric cable, 5/16”, 15/32”, 1/2” - 5 tons Minimum wire length capacity 1.5 times expected operational depth or 5,000 m (16,400 ft) • Drop protection above the cabin • Splint safe windows • Double skinned insulated cabin • Minimum one (1) extra seat • All electrical equipment zone 1 certified • Spooling device or back-up drum • A brake system with minimum capacity equal to cable breaking strength • Hydraulic drive system capable holding the load in neutral posit ion • Minimum jarring requirements : • - Slickline drum with 200 kg (440 lbs) tension: Cable speed after 4m acceleration: 3 m/s - Braided line drum with 1000 kg (2200 lbs) tension: Cable speed after 4m acceleration: 1 m/s Logging speed range requirements - all size cables : • - Low speed: 90 m/hr (295 ft/hr) constant logging speed at outer diameter of drum - High speed: 3000 m/hr (9,840 ft/hr) constant logging speed at outer diameter of drum Instrumentation Be located such that operator at all times can read: Depth • Tension • Cable speed • Depth indicator system Calibration range of +/-1.5 m for a depth of 5,000 m (+/- 4.9 ft for a depth of 16,400 ft ) • Weight indicator system Calibration accuracy of 0.5% • Additional for logging unit Supplied with a slip ring collector certified for zone 1 • Automatic overpull shut-down system • Sheave & Hay pulley Minimum sheave diameter: • - Slickline, 0.108” - Slickline, 0.125” - Braided/electric cable, 3/16”, 7/32”, - Braided/electric cable, 5/16” - Electric cable, 15/32” - Electric cable, 1/2” NORSOK standard
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0.36 m (14”) 0.36 m (14”) 0.36 m (14”) 0.48 m (19”) 0.53 m (21”) 0.56 m (22”) Page 5 of 12
Wireline equipment Annex A • • •
D-SR-008 Rev. 1, October 1996
Load limit (LL) requirement for sheave & hay pulley: Maximum line pull x 2 x SF Minimum safety factor (SF): 2. All locking devices to have a double safety feature
Wireline and fishing clamps Two (2) for each line size • Load limit (LL) requirement: Line breaking strength x SF • Minimum safety factor (SF): 2 • All locking devices to have a double safety feature • Hydraulic power pack: Diesel engine certified for Zone 2 or electric motor certified for Zone 1 • A gas detector with an audible/visible alarm installed on air inlet of diesel engine • Drip pan • Manual ESD function. • ESD panel loacted in a safe area • Data Acquisition system: See Annex I Pressure test pump: Working pressure 345 bar (5,000 psi) / 690 bar (10,000 psi) / 1034 bar (15,000 psi) as required. • Pump rate: • - 50 l/min at 69 bar (1,000 psi) - 8 l/min at 345 bar (5,000 psi), 5 l/min at 690 bar (10,000 psi) and 1034 bar (15,000 psi) Fluid tank: 1000 liter • Pressure recorder included • Wellhead pump: Working pressure 345 bar (5,000 psi)/ 690 bar (10,000 psi) / 1034 bar (15,000 psi) as required • Minimum two (2) separate pumps included in skid • Check valve on return line to fluid reservoir •
NORSOK standard
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Wireline equipment Annex B
D-SR-008 Rev. 1, October 1996
ANNEX B: WELL CONTROL SYSTEM REQUIREMENTS (NORMATIVE) General: Minimum working press: 345 bar (5,000 psi) / 690 bar (10,000 psi) / 1034 bar (15,000 psi) as • required BOP response time 30 seconds • Minimum nominal bore for riser and BOPs equal to or greater than x-mas tree ID • Wireline rams sizes as per work program. • All rams to be interchangeable in all ram cavities except for the shear seal. • All types of rams to be capable of centring without damaging relevant line against side loads. • Ram locking system required, in order to be able to manually lock the rams. • Each ram shall have an external indicator showing ram position at all times • Equalising assembly to allow for equalising in any combination between rams. • Quick union type connection on all components • Compatible with well conditions • Hydraulic control panels: For control of BOP, line wiper, stuffing box, tool catcher, injection-sub. • The secondary and tertiary well control system shall be equipped with a panel with an alarm for • low accumulator pressure and loss of power. One panel to be located in a safe area. • Accumulators: All preventors in the secondary and tertiary well control systems shall be used as basis when • calculating accumulator capacity. Sufficient capacity for three operations (close, open, close) plus 25% of the volume of one • closing operation for each of the rams. Quick union connections: Qualified and certified to withstand the required forces and pressure integrity. • Riser: Arrangement to enable bleed off and verify no trapped pressure to be included • Lubricator: Lower lubricator section minimum nominal bore equal to or greater than x-mas tree ID • Arrangement to enable bleed off and verify no trapped pressure to be included • Tool catcher: Spring catch/hydraulic release design • Chemical injection sub Injection inlet manifold to include check valve • Liquid chamber made of soft material (brass or equivalent) •
NORSOK standard
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Wireline equipment Annex C
D-SR-008 Rev. 1, October 1996
ANNEX C: PRIMARY WELL CONTROL SYSTEM (NORMATIVE) Primary well control system for wireline operations is depended on type and size of line and is located above the secondary well control system. The following systems are used: • • •
Slickline operations 3/16", 7/32" and 5/16" cable Cable > 5/16"
- Stuffing box for solid wireline - Grease injection head with relevant sized flowtubes - Hydraulic line wiper and stuffing box
Stuffing box: Hydraulic actuated packing nut operated from hydraulic control panel • Blow-out plug to be included • Soft metal inserts (brass or equivalent) • Grease injection head: Line wiper & stuffing box to be included in the assembly. • Grease injection inlet manifold to include check valve • Integral ball check valve system to be included • Two (2) ports for grease injection • Grease injection skid: Minum two (2) pumps and grease tanks • Capacity: Minimum 0.75 l/min at maximum pump pressure • Include system for injecting grease between BOPs • Hydraulic line wiper and stuffing box: Hydraulic actuated rubber element operated from hydraulic control unit. •
NORSOK standard
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Wireline equipment Annex D, E and F
D-SR-008 Rev. 1, October 1996
ANNEX D: SECONDARY WELL CONTROL EQUIPMENT (NORMATIVE) Secondary well control system. This system shall as a minimum consist of one wireline ram for slickline and two (2) wireline rams for braided or electric line. • • • • • • •
Operated from the main hydraulic control panel Hydraulic control system independent from other systems Rams to be able to close and open against full working pressure The top ram for braided/electric line to hold pressure from below The bottom ram for braided/electric line to hold pressure from above For braided/electric line a grease injection/test port between the rams shall be included Equalising assembly on the BOP system shall be an integral feature, providing pressure equalising paths around the rams
ANNEX E: TERTIARY WELL CONTROL SYSTEM (NORMATIVE) The tertiary well control system consists of one (1) independent operated shear/seal BOP located as close as possible to the wellhead. A wire cutting gate valve may represent the safety head provided cutting and sealing capabilities are documented. •
• • •
The safety head shall have combined shear and seal function and be capable of shearing any wire or cable within the entire working pressure range (0-345 bar / 0-690 bar / 0-1034 bar) and hold pressure from below. The safety head control system shall be independent from other systems. The safety head shall be operated from a panel located in a safe area. There shall be documentary evidence that the pressure capacity of the accummulators are capable of operating the rams according to the design requirements
ANNEX F : SLICK, BRAIDED AND ELECTRIC LINE REQUIREMENTS (NORMATIVE) Slickline, braided line and electric line: Periodic wire inspection and PM program to be in place • Well conditions compatible • Wire loaded to yield strength to be replaced immediately • Wire log with relevant data •
NORSOK standard
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Wireline equipment Annex G
D-SR-008 Rev. 1, October 1996
ANNEX G: DOWNHOLE TOOLS REQUIREMENTS (NORMATIVE) Wireline tool string components: Fishing neck on all components • Well conditions compatible • Fishing tools on location • Rockwell HRC 30-36 on low alloyd steel • Running and pulling tools: Fishing neck on all components • Well conditions compatible • Rockwell HRC 30-36 on low alloyd steel • Fishing tools: Fishing neck on all components • Rated for the loads exposed to • Well conditions compatible • Rockwell HRC 30-36 on low alloyd steel • Explosive tools: Well conditions compatible • Pressure relief port for bleeding off trapped pressure • Firing system independent of radio silence • Fishing tools on location • Logging tools Well conditions compatible • Pressure relief port for bleeding off trapped pressure • Fishing tools on location •
NORSOK standard
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Wireline equipment Annex H and I
D-SR-008 Rev. 1, October 1996
ANNEX H: MINIMUM DOCUMENTATION REQUIRED (NORMATIVE) Wireline unit, well control system, riser and equipment recognized to be of great importance for safety of personnel and platform installation • • • • •
• • •
•
•
• • • •
Name of equipment. Production number. Name of manufacturer and supplier. Description of design and manufacture, indicating safe ty factor used. Verification of design/strength/assumptions carried out by an independent survey institution. Depending on organisational independence, this function may be taken care of by the manufacturer. Material certificates and confirmation as to where materials have been used. Welding procedure specifications. Statement of manufacture and inspection signed by manufacturer and surveyor/surveying firm/body. Report from testing including testing conditions, and information on how testing has been carried out Supplier's operation and maintenance specifications, with indication of operational criteria/limitations. Marking of equipment. Updating of items in the case of modification of equipment. Weight and dimensions Lift certificate
Wire/Cable • • • • • •
• • •
Name of equipment Production number. Name of manufacturer and supplier. Description of design and manufacture, indicating safe ty factor used. Material certificates including chemical analysis and mechanical strengths. Report from testing including testing conditions, and information on how testing has been carried out. Quality audit of the maker's manufacturing process. Inspection reports. Physical dimensions.
Downhole tools • • • • • •
Name of equipment Production number Name of manufacturer and supplier Description of design and manufacture, indicating safe ty factor used. Material certificates and confirmation as to where materials have been used. Statement of manufacture and inspection signed by manufacturer or surveyor/surveying firm/body.
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Wireline equipment Annex H and I •
•
• •
D-SR-008 Rev. 1, October 1996
Report from testing including testing conditions, and information on how testing has been carried out. Supplier's operation and maintenance specifications, with indication of operational criteria/limitations. Marking of equipment. Drawings showing internal parts/functions, overall le ngth, max. OD, min. ID and weight.
ANNEX I : DATA ACQUISITION SYSTEM (NORMATIVE) The following parameters shall be monitored and recorded during wireline operations: Depth • Line tension • Speed • Tubing pressure • Annulus pressure •
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