180530-00-ME-SPC-0005-A

PETROM SA EXPLORATION &

PRODUCTION DIVISION

PROJECT NO: 180530

DOC NO: 180530–00–ME–SPC-0005-A PAGE 1 OF 11

ENGINEERING SPECIFICATION

DOCUMENT TITLE: NOZZLE LOADS SPECIFICATION

PROJECT DESCRIPTION: FEED AND PRE-FEASIBILITY STUDY FOR SURFACE PRODUCTION SYSTEMS IN OIL AND GAS

ORIGINATOR: G. DONZELLI

DATE: 21 JAN. 08

REV. DATE DESCRIPTION BY CHK APP’D CLIENT

0 23/01/08 ISSUED FOR INTERNAL REVIEW GD PC PC 1 28/01/08 ISSUED FOR CLIENT REVIEW GD PC PC A 07/02/08 APPROVED FOR DESIGN GD PC PC


PRODUCTION DIVISION

PROJECT NO: 180530


REVISION DESCRIPTION SHEET

Rev. Para. Revision Description

0 Issued for Internal Review 1 Issued for Client Review A Approved for Design

Hold No. Para. Description of Hold


PRODUCTION DIVISION

PROJECT NO: 180530


TABLE OF CONTENTS

1 EXECUTIVE SUMMARY.........................................................................4

1.1 Project Outline ........................................................................................4

2 SCOPE ....................................................................................................5

2.1 Definitions ...............................................................................................5

3 REGULATIONS, STANDARDS , CODES AND SPECIFICATIONS.......5

3.1 Units........................................................................................................5

3.2 Statutory Regulations..............................................................................6

3.3 Referenced Codes and Standards..........................................................6

3.4 Precedence.............................................................................................6

4 ALLOWABLE LOADS ............................................................................7

4.1 Pressure Vessels ....................................................................................7

4.2 Compressors...........................................................................................7

4.3 Pumps.....................................................................................................7

4.4 Air Coolers ..............................................................................................8

4.5 Equipment Packages ..............................................................................8

4.6 Other Equipment.....................................................................................8

5 COMPLIANCE.......................................................................................11


PRODUCTION DIVISION

PROJECT NO: 180530


1 EXECUTIVE SUMMARY

PETROM have issued a reimbursable engineering contract to WorleyParsons to provide a Front End Engineering Design (FEED) and EPC ITT documentation for the Central and East Region OSPS Facilities consisting of 284 Parks contained within 23 Projects (22 in Central Region and 1 in the East). In addition, Pre-feasibility Studies leading to future FEED design work are to be carried out on 92 Parks (contained within 15 Projects) for the Western Region as well as for 45 Tank Farms in the three regions (2 in the Eastern Region; 38 in the Central Region; and 5 in the Western Region).

1.1 Project Outline

The Project Scope is comprised of the modernisation or abandonment of existing Park facilities. Modernisation consists of complete replacement of the existing Park facilities, sized to present production capacities. The Park facilities will be designed to be of modular construction, the modules to consist of PETROM design for manifold only (PMAN) or one of five metering point (MP) designs as put forward by PETROM. In addition, there are five Metering Point Production (MPP) designs covering 20 Park facilities in the Central and East Regions that are to be evaluated for abandonment, modernising, upsizing or downsizing in addition to others in the Eastern Region that are to be identified. Given the size and complexity of these facilities, only partial modularisation is expected. Work on the West Region Parks will culminate in a Pre-feasibility Study following a detailed data gathering exercise and verification of the same. There are 92 Parks contained in 15 Projects that will be assessed for upgrade or abandonment. The 45 Tank Farms are to be examined for upsizing, downsizing, modernisation or abandonment and will also culminate as a Pre-feasibility Study. The scope of work begins at the manifold inlet to the Park facilities and continues through to the delivery points of the Tank Farms or MPP’s; i.e. pipelines and wellheads upstream of the manifolds upstream are not considered. However, interconnecting and delivery pipelines will have to be considered in the overall assessment of the project.


PRODUCTION DIVISION

PROJECT NO: 180530


2 SCOPE

This specification defines the minimum requirements for loads (forces and moments) resulting from external pipework/piping system, to be allowed in the design of the equipment process nozzles.

Unless otherwise indicated during the execution of the contract, the Purchaser/ EPC Contractor will use these loads as the basis for the design and pipe routing.

The Supplier to note that the loads used in the design of his equipment shall be equal or greater than those referenced in this specification.

2.1 Definitions

• The Contractor is the party who carries out all or part of the design, engineering, procurement, construction (EPC), commission or management of the project, or operation or maintenance of a facility.

• The Manufacturer/Supplier/ Vendor is the party who manufactures or supplies

equipment and services specified by the Contractor / Purchaser/ Company

• The Company is the party who owns and operates the equipment.

• The Purchaser is the party which buys the equipment and its auxiliaries for its own use or as an agent for the owner.

• The Inspection Authority is the party appointed by the COMPANY to ensure that

the equipment supplied conforms to the requirements of the Specification.

• The word shall indicates a requirement.

• The word should indicates a recommendation.

3 REGULATIONS, STANDARDS , CODES AND SPECIFICATIONS

All work specified shall be in accordance with the applicable sections of the latest editions of the Regulations, Codes and Standards (and their current amendments), listed below or referenced in this specification, except where modified or supplemented by requirements noted in this specification.

3.1 Units

The S.I. (System International) system of units shall be used as the official units throughout all documentations with the exceptions as shown on data sheets and piping specifications.


PRODUCTION DIVISION

PROJECT NO: 180530


3.2 Statutory Regulations

EU Directive 97/23/EC Pressure Equipment Directive (PED)

3.3 Referenced Codes and Standards

The following codes and standards are referenced in this document.

API 618 Reciprocating Compressors for Petroleum, Chemical and Gas

Industry Services ISO 13707 Petroleum and Natural Gas Industries - Reciprocating Compressors

API 610/ SR EN ISO 13709

Centrifugal Pumps for Petroleum, Heavy Duty Chemical, and Gas Industry Service

API 661/ ISO 13706

Air-Cooled Heat Exchangers for General Refinery Service

API 676 Positive Displacement Pumps- Rotary

NEMA SM23 Steam Turbines for Mechanical Drive Service (applicable to compressor)

3.4 Precedence

In general, the order of precedence for all design work shall be: a. Romanian Laws, Decisions, Orders, Prescriptions, Normative, Rules, National

Standards, Codes and Regulations: b. EU Directives c. Contract d. Datasheets & Drawings e. Project Specifications and Philosophy f. Referenced Codes & Standards In the event of any conflict arising between the referenced documents, laws, codes and standards, the more stringent shall be applied. Any deviation from the referenced documents, laws, codes and standards shall obtain written approval from COMPANY.

http://www.nema.org/stds/sm23.cfm


PRODUCTION DIVISION

PROJECT NO: 180530


4 ALLOWABLE LOADS 4.1 Pressure Vessels

This section defines the allowable piping loads acting on nozzles of process vessels (i.e. columns, drums etc.), shell and tube heat exchangers.

The values in table 1 apply to the equipment of 150# and 300# pressure rating up to a metal design temperature of 100°C.

For the design temperatures (Td) between 100°C and 250°C, the tabulated values shall be multiplied by (Td-20)/80. When the equipment pressure rating is 600# and above, the values in Table 1 shall also be multiplied by a factor of 1.4.

When the equipment design pressure does not exceed 7.0 bar g the values in table 1 shall be multiplied by a factor of 0.8.

For design temperatures above 250°C, the allowable nozzle loads shall be subject to agreement between the Purchaser and the Supplier.

The loads defined in Table 1 shall be considered acting simultaneously with the design pressure. Use of loads greater than listed in Table 1 shall be subject to agreement between the Purchaser and the Supplier.

4.2 Compressors

Piping terminals and/or compressor nozzles at the edge of the compressor skid shall be capable of withstanding loadings of 3 x NEMA SM23 (Clause 8.4.6).

Within the compressor skid package, nozzle loads acting upon the compressor housing to be to suppliers’ standard and nozzle loads at compressor bottles attached directly to the compressor shall be twice those supplier standard loads.

4.3 Pumps

For horizontal centrifugal pumps (both API 610 and non-API pumps) the loads on nozzles of DN400 or less shall comply with the load criteria of 2xAPI 610 /SR EN ISO 13709 (Clause 5.5.3; Table 4). For nozzle size DN450 and larger, manufacture’s standard shall be applied.

Forces and moments for vertical in-line pumps shall comply with the load criteria of 3x API 610 /SR EN ISO 13709 (Clause 5.5.3; Table 4).

For positive displacement rotary pumps the loads on nozzles (of DN400 or less) shall comply with the load criteria of 2 x API 676 (Section 2.4; amended 1999).


PRODUCTION DIVISION

PROJECT NO: 180530


4.4 Air Coolers

Allowable loads acting on air-cooled heat exchanger header nozzles shall be 2 x those specified in API 661 / ISO 13706 (Clause 7.1.10; Table 4) as a minimum.

On air-cooled heat exchangers rated higher than 300#, the loads shall be subject to agreement between the Purchaser and the Supplier.

4.5 Equipment Packages

For Packaged Units, the Supplier shall ensure that the defined loads can be tolerated by those terminal nozzles to which the Purchaser’s pipework will connect.

For equipment nozzles within the package (i.e. those which are piped by the supplier to other nozzles in the same unit), responsibility lies with the supplier to ensure that no equipment inside the package is over-stressed due to pipework loadings.

For nozzles terminating at a skid edge, the allowable nozzle loads shall be as those for pressure vessels (see section 4.1 above).

For nozzles within a package, where termination is at an item of equipment (e.g. at a vessel or a pump), the maximum allowable nozzle loads shall be as defined in the appropriate Section 4.1 to 4.4 above.

4.6 Other Equipment

For items of equipment not mentioned herein, the allowable nozzle loads shall be subject to agreement between Purchaser and Supplier.


PRODUCTION DIVISION

PROJECT NO: 180530


NOMENCLATURE :- FORCES MOMENTS Fl = Longitudinal Ml = Longitudinal Fa = Axial Mt = Torsional Fc = Circumferential Mc = Circumferential Note: All forces and moments are acting at the intersection of the nozzle axis with the mid-thickness of the vessel shell or head plate.


PRODUCTION DIVISION

PROJECT NO: 180530


Examples 1) 34" NB-300# nozzle at the design temp of 170°C

Mc = 41.0 x (170-20)/80 = 76.875 kN.m. 2) 34" NB-300# nozzle at the design temp of 80°C Mc = 41.0 kN.m. 3) 34" NB-600# nozzle at the design temp of 170°C Mc = 41.0 x 1.4 x (170-20)/80 = 107.625 kN.m.

NOZZLE FORCES kN MOMENTS kNm

SIZE NB Fl Fa Fc Mc Mt Ml

2” 1.5 1.5 1.5 0.8 0.8 0.8

3" 2.2 2.2 1.7 0.9 1.4 1.2

4" 2.8 2.8 2.1 1.0 1.5 1.3

6" 4.1 4.1 3.1 2.1 3.1 2.7

8" 5.6 5.6 4.2 3.6 5.4 4.7

10" 7.0 7.0 5.3 5.4 8.2 7.1

12" 8.4 8.4 6.3 7.6 11.4 9.8

14" 9.9 9.9 7.4 10.0 15.0 13.0

16" 11.2 11.2 8.4 12.6 18.9 16.3

18" 12.8 12.8 9.6 15.6 23.5 20.3

20" 14.2 14.2 10.6 18.3 27.5 23.8

24" 17.0 17.0 12.8 24.7 37.0 32.1

26" 18.6 18.6 14.0 27.9 41.9 36.3

30" 22.0 22.0 16.5 34.3 51.4 44.6

32" 23.7 23.7 17.8 37.7 56.6 49.0

34" 25.2 25.2 18.9 41.0 61.6 53.4

36" 27.0 27.0 20.3 44.5 66.7 57.8

42" 31.9 31.9 23.9 55.5 83.2 72.1

48" 36.7 36.7 27.5 66.6 99.8 86.5

60" 46.3 46.3 34.7 90.6 135.9 117.8

Table 1


PRODUCTION DIVISION

PROJECT NO: 180530


5 COMPLIANCE

Suppliers shall confirm during quotation stage compliance with the forces and moments stated in this specification.

Agreed loads shall remain fixed and firm and shall not be subject to alteration.

The nozzle loads for which the equipment has been designed shall be shown in the supplier’s drawings.

Documents

180530-00-ME-SPC-0005-A