Api mpms 4 9 4 2010 (american petroleum institute)

Manual of Petroleum Measurement Standards Chapter 4—Proving Systems Section 9—Methods of Calibration for Displacement and Volumetric Tank Provers Part 4—Determination of the Volume of Displacement and Tank Provers by the Gravimetric Method of Calibration FIRST EDITION, OCTOBER 2010 Manual of Petroleum Measurement Standards Chapter 4—Proving Systems Section 9—Methods of Calibration for Displacement and Volumetric Tank Provers Part 4—Determination of the Volume of Displacement and Tank Provers by the Gravimetric Method of Calibration Measurement Coordination FIRST EDITION, OCTOBER 2010 Special Notes API publications necessarily address problems of a general nature With respect to particular circumstances, local, state, and federal laws and regulations should be reviewed Neither API nor any of API's employees, subcontractors, consultants, committees, or other assignees make any warranty or representation, either express or implied, with respect to the accuracy, completeness, or usefulness of the information contained herein, or assume any liability or responsibility for any use, or the results of such use, of any information or process disclosed in this publication Neither API nor any of API's employees, subcontractors, consultants, or other assignees represent that use of this publication would not infringe upon privately owned rights API publications may be used by anyone desiring to so Every effort has been made by the Institute to assure the accuracy and reliability of the data contained in them; however, the Institute makes no representation, warranty, or guarantee in connection with this publication and hereby expressly disclaims any liability or responsibility for loss or damage resulting from its use or for the violation of any authorities having jurisdiction with which this publication may conflict API publications are published to facilitate the broad availability of proven, sound engineering and operating practices These publications are not intended to obviate the need for applying sound engineering judgment regarding when and where these publications should be utilized The formulation and publication of API publications is not intended in any way to inhibit anyone from using any other practices Any manufacturer marking equipment or materials in conformance with the marking requirements of an API standard is solely responsible for complying with all the applicable requirements of that standard API does not represent, warrant, or guarantee that such products in fact conform to the applicable API standard All rights reserved No part of this work may be reproduced, translated, stored in a retrieval system, or transmitted by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission from the publisher Contact the Publisher, API Publishing Services, 1220 L Street, NW, Washington, DC 20005 Copyright © 2010 American Petroleum Institute Foreword This multi-part publication consolidates and standardizes calibration procedures for displacement and volumetric tank provers used in the metering of petroleum liquids It provides essential information on the operations involved in obtaining a valid, accurate and acceptable prover volume by different calibration methods Units of measure in this publication are in the International System (SI) and United States Customary (USC) units consistent with North American industry practices The parts consist of the following: — Part 1—Introduction to the Determination of the Volume of Displacement and Tank Provers; — Part 2—Determination of the Volume of Displacement and Tank Provers by the Waterdraw Method of Calibration; — Part 3—Determination of the Volume of Displacement Provers by the Master Meter Method of Calibration; — Part 4—Determination of the Volume of Displacement and Tank Provers by the Gravimetric Method of Calibration Nothing contained in any API publication is to be construed as granting any right, by implication or otherwise, for the manufacture, sale, or use of any method, apparatus, or product covered by letters patent Neither should anything contained in the publication be construed as insuring anyone against liability for infringement of letters patent This document was produced under API standardization procedures that ensure appropriate notification and participation in the developmental process and is designated as an API standard Questions concerning the interpretation of the content of this publication or comments and questions concerning the procedures under which this publication was developed should be directed in writing to the Director of Standards, American Petroleum Institute, 1220 L Street, NW, Washington, DC 20005 Requests for permission to reproduce or translate all or any part of the material published herein should also be addressed to the director Generally, API standards are reviewed and revised, reaffirmed, or withdrawn at least every five years A one-time extension of up to two years may be added to this review cycle Status of the publication can be ascertained from the API Standards Department, telephone (202) 682-8000 A catalog of API publications and materials is published annually by API, 1220 L Street, NW, Washington, DC 20005 Suggested revisions are invited and should be submitted to the Standards Department, API, 1220 L Street, NW, Washington, DC 20005, standards@api.org iii Contents Page 1.1 1.2 1.3 1.4 Scope General U.S Customary (USC) and International System (SI) Units National Metrology Institute Safety Considerations 1 1 Normative References Terms and Definitions Prover Preparation 5.1 5.2 5.3 Preliminary and General Calibration Procedures General Preliminary Calibration Procedures General Calibration Procedures 10 6.1 6.2 6.3 Calibration Procedures General Calibration Preparation Displacement Type Bidirectional Provers with Free Displacers 12 12 12 14 7.1 7.2 7.3 Troubleshooting Calibration Problems General Weighing System Water Quality 18 18 18 19 Annex A (normative) Calculation Procedures for the Determination of Base Prover Volume (BPV) of Displacement Provers by the Gravimetric Method (GM) 20 Annex B (informative) Dynamic Prover Volume Calculation, Gravimetric Method (GM)—SI Units 31 Annex C (informative) Dynamic Prover Volume Calculation, Gravimetric Method (GM)—USC Units 33 Annex D (informative) Weigh Scale Verification Gravimetric Method (GM) (Example) 35 Annex E (informative) Run Datasheet Gravimetric Method (GM) (Example) 36 Annex F (informative) Tank Prover Volume Calibration Gravimetric Method (GM)—USC Units (Distilled Water Example) 37 Annex G (informative) Figures 38 Bibliography 48 Figures Gravimetric Calibration of a Displacement Type Unidirectional Prover with a Free Displacer 2A Gravimetric Calibration Displacement Type Bi-Directional Prover with a Free Piston Displacer and Check Valves in the Manifold 2B Gravimetric Calibration of a Displacement Type Bi-directional Prover with a Free Sphere Displacer 3A Gravimetric Calibration of the Downstream Volume of a Displacement Prover with a Captive Displacer and External Directors 3B Gravimetric Calibration of the Upstream Volume of a Displacement Prover with a Captive Displacer and External Detectors v 39 40 41 42 43 Contents Page 3C 4A 4B 4C A Gravimetric Calibration of a Displacement Prover with Equal Size Diameter Shafts on Both Sides of a Captive Displacer, with External Detectors Waterdraw Calibration of a Volumetric Tank Prover with a Bottom-Weir Gravimetric Calibration of a Volumetric Tank Prover with a Dry Bottom using the Water-fill Method Gravimetric Calibration of a Volumetric Tank Prover with a Wet Bottom 44 45 46 47 Table A.1 Equation Reference Standards and Publications 30 vi Introduction This standard describes the gravimetric method of calibration (GM), which is used to determine the calibrated volume of both displacement and tank provers All prover volumes shall be determined by calibration and not by calculation The GM differs from the waterdraw (volumetric) method found in API MPMS Ch 4.9.2 The main difference between the methods is that a field standard test measure is replaced with a weighing system (weigh scale and container) A majority of the activities necessary to prepare the prover, conduct calibration runs, and record all the required data necessary to calculate the base volumes of displacement and tank provers are identical for the waterdraw and GMs This standard will describe activities that are different from the waterdraw method Therefore, it will be necessary for the user to reference API MPMS Ch 4.9.1 and API MPMS Ch 4.9.2 to perform all activities necessary for a calibration Detailed volume calculation procedures for this method are included in Annex A vi Annex G (informative) Figures 38 Centrifugal Pump Isolation from Metering System Pp* Tp* *Optional For monitoring temperature stabilization and pressure drop across the sphere, not to be used in calculations Prover Interchange Note: Alternatively a 3-way solenoid valve may be used 2-way Solenoid Valve Logic Circuit Note: A single wire connection through both detectors is an alternative method Detector Switches WATER RESERVOIR Scale UNIDIRECTIONAL PIPE PROVER Figure 1—Gravimetric Calibration of a Displacement Type Unidirectional Prover with a Free Displacer Waterdraw Unit Flow Reversing Valve Isolation from Metering System Pp Tp SECTION 9, PART 4—DETERMINATION OF THE VOLUME OF DISPLACEMENT AND TANK PROVERS BY THE GRAVIMETRIC METHOD OF CALIBRATION 39 Isolation from Metering System 3-way Solenoid Valve Note: Alternatively (2) 2-way solenoid valves may be used A method to verify that solenoid valves are not leaking must be included in both the 3-way and 2-way systems Weigh/Scale Indicator/Controller Weigh/Scale Indicator/Controller Figure 2A—Gravimetric Calibration Displacement Type Bi-Directional Prover with a Free Piston Displacer and Check Valves in the Manifold Isolation from Metering System Detector Switches Note: Alternately a two wire sytem connected each detector separately may be used 40 API MPMS CHAPTER 4—PROVING SYSTEMS Centrifugal Pump Isolation from Metering System 3-way Solenoid Valve Logic Circuit Note: 2-way solenoid valve configuration may also be used Pp Tp Scale BI-DIRECTIONAL PIPE PROVER WATER RESERVOIR Detector Switches Figure 2B—Gravimetric Calibration of a Displacement Type Bi-directional Prover with a Free Sphere Displacer Waterdraw Unit Flow Reversing Valve (Optional) Isolation from Metering System Pp Tp Note: Single wire connection through both detectors may also be used SECTION 9, PART 4—DETERMINATION OF THE VOLUME OF DISPLACEMENT AND TANK PROVERS BY THE GRAVIMETRIC METHOD OF CALIBRATION 41 42 API MPMS CHAPTER 4—PROVING SYSTEMS Piston Prover Isolation from Metering System Piston Rod Optical Detectors Td Tp Pp Isolation from Metering System Logic Circuit Tp* *Optional For monitoring temperature stabilization and pressure drop across piston, not to be used in calculations 3-way Solenoid Valve Pp* Scale Centrifugal Pump WATER RESERVOIR Figure 3A—Gravimetric Calibration of the Downstream Volume of a Displacement Prover with a Captive Displacer and External Directors SECTION 9, PART 4—DETERMINATION OF THE VOLUME OF DISPLACEMENT AND TANK PROVERS BY THE GRAVIMETRIC METHOD OF CALIBRATION 43 Piston Prover Isolation from Metering System Piston Rod Tp* Optical Detectors Td Pp* Isolation from Metering System *Optional For monitoring temperature stabilization and pressure drop across piston, not to be used in calculations Logic Circuit Tp 3-way Solenoid Valve Pp Scale Centrifugal Pump WATER RESERVOIR Figure 3B—Gravimetric Calibration of the Upstream Volume of a Displacement Prover with a Captive Displacer and External Detectors 44 API MPMS CHAPTER 4—PROVING SYSTEMS Piston Prover Piston Shaft Piston Shaft Optical Detectors Isolation from Metering System Td Isolation from Metering System Tp Pp Logic Circuit Tp* 3-way Solenoid Valve Scale Pp* *Optional For monitoring temperature stabilization and pressure drop across piston, not to be used in calculations Centrifugal Pump WATER RESERVOIR Figure 3C—A Gravimetric Calibration of a Displacement Prover with Equal Size Diameter Shafts on Both Sides of a Captive Displacer, with External Detectors SECTION 9, PART 4—DETERMINATION OF THE VOLUME OF DISPLACEMENT AND TANK PROVERS BY THE GRAVIMETRIC METHOD OF CALIBRATION 45 SRu Upper Scale WEIR Atmospheric Tank Prover Tp Tp SRl Lower Scale Tp* Transfer Pump *Alternate Location to Obtain Prover Temperature Scale Isolation from Metering System Fill Pump WATER RESERVOIR Figure 4A—Waterdraw Calibration of a Volumetric Tank Prover with a Bottom-Weir 46 API MPMS CHAPTER 4—PROVING SYSTEMS Scale SRu Upper Scale Tp Atmospheric Tank Prover Isolation from Metering System Fill Pump WATER RESERVOIR Figure 4B—Gravimetric Calibration of a Volumetric Tank Prover with a Dry Bottom using the Water-fill Method SECTION 9, PART 4—DETERMINATION OF THE VOLUME OF DISPLACEMENT AND TANK PROVERS BY THE GRAVIMETRIC METHOD OF CALIBRATION 47 SRu Upper Scale Tp Atmospheric Tank Prover SRl Lower Scale *Alternate Location to Obtain Prover Temperature Tp* Scale Isolation from Metering System Transfer Pump Mass Indication Test Weights Fill Pump WATER RESERVOIR Figure 4C—Gravimetric Calibration of a Volumetric Tank Prover with a Wet Bottom Bibliography [1] The Practical Salinity Scale 1978 and the International Equation of State of Seawater 1980, “UNESCO Technical Papers in Marine Science” No 36, UNESCO, Paris, 1981; Section No 37, No 38, No 39, and No 40 in this series give background papers and detailed tables [2] Kennish, M.J., CRC Practical Handbook of Marine Science, CRC Press, Boca Raton, Florida, 1989 [3] Poisson, A IEEE J Ocean Eng OE-5, 50, 1981 [4] Webster, F., AIP Physics Desk Reference, E.R Cohen, D.R Lide and G.L Trigg, Eds., Springer-Verlag, New York, 2002 [5] API MPMS Ch 11.4.1: 2003, Properties of Reference Materials, Part 1—Density of Water and Water Volume Correction Factors for Calibration of Volumetric Provers [6] API MPMS Ch 12.2.4: 1998, Calculation of Petroleum Quantities Using Dynamic Measurement Methods and Volumetric Correction Factors, Part 4—Calculation of Base Prover Volumes by Waterdraw Method [7] API MPMS Ch 14.6: 1991, Continous Density Measurement 48 2010 PUBLICATIONS ORDER FORM Effective January 1, 2010 API Members receive a 30% discount where applicable The member discount does not apply to purchases made for the purpose of resale or for incorporation into commercial products, training courses, workshops, or other commercial enterprises Ordering Information Online: www.api.org/pubs Phone: 1-800-854-7179 (Toll-free in the U.S and Canada) | (+1) 303-397-7956 (Local and International) (+1) 303-397-2740 Fax: Date: ❏ API Member (Check if Yes) Invoice To (❏ Check here if same as “Ship To”) Ship To (UPS will not deliver to a P.O Box) Name: Name: Title: Title: Company: Company: Department: Department: Address: Address: City: State/Province: City: State/Province: Zip/Postal Code: Country: Zip/Postal Code: Country: Telephone: Telephone: Fax: Fax: Email: Email: Quantity Title Unit Price Ch 4.1, Proving Systems - Part Introduction $79.00 Ch 4.2, Displacement Provers $119.00 Ch 4.4, Tank Provers $80.00 Ch 4.5, Master-meter Provers $63.00 Ch 4.8, Operation of Proving Systems $105.00 Ch 4.9.1, Introduction to the Determination of Volume of Displacement and Tank Provers $73.00 Ch 4.9.2, Determination of the Volume of Displacement and Tank Provers by the Waterdraw method of Calibration $176.00 Ch 4.9.3, Determination of the Volume of Displacement and Tank Provers by the Waterdraw Method of Calculation $71.00 ❏ Payment Enclosed ❏ P.O No (Enclose Copy) ❏ Charge My IHS Account No ❏ VISA ❏ MasterCard ❏ American Express ❏ Diners Club ❏ Discover Credit Card No.: Print Name (As It Appears on Card): Expiration Date: Signature: SO★ Total Subtotal Applicable Sales Tax (see below) Rush Shipping Fee (see below) Shipping and Handling (see below) Total (in U.S Dollars) ★ To be placed on Standing Order for future editions of this publication, place a check mark in the SO column and sign here: Pricing and availability subject to change without notice Mail Orders – Payment by check or money order in U.S dollars is required except for established accounts State and local taxes, $10 processing fee, and 5% shipping must be added Send mail orders to: API Publications, IHS, 15 Inverness Way East, c/o Retail Sales, Englewood, CO 80112-5776, USA Purchase Orders – Purchase orders are accepted from established accounts Invoice will include actual freight cost, a $10 processing fee, plus state and local taxes Telephone Orders – If ordering by telephone, a $10 processing fee and actual freight costs will be added to the order Sales Tax – All U.S purchases must include applicable state and local sales tax Customers claiming tax-exempt status must provide IHS with a copy of their exemption certificate Shipping (U.S Orders) – Orders shipped within the U.S are sent via traceable means Most orders are shipped the same day Subscription updates are sent by First-Class Mail Other options, including next-day service, air service, and fax transmission are available at additional cost Call 1-800-854-7179 for more information Shipping (International Orders) – Standard international shipping is by air express courier service Subscription updates are sent by World Mail Normal delivery is 3-4 days from shipping date Rush Shipping Fee – Next Day Delivery orders charge is $20 in addition to the carrier charges Next Day Delivery orders must be placed by 2:00 p.m MST to ensure overnight delivery Returns – All returns must be pre-approved by calling the IHS Customer Service Department at 1-800-624-3974 for information and assistance There may be a 15% restocking fee Special order items, electronic documents, and age-dated materials are non-returnable THERE’S MORE WHERE THIS CAME FROM API Monogram® Licensing Program Sales: (+1) 713-964-2662 Service: (+1) 202-962-4791 Fax: (+1) 202-682-8070 Email: certification@api.org Web: www.api.org/monogram API Quality Registrar (APIQRđ) ã ISO 9001 • ISO/TS 29001 • ISO 14001 • OHSAS 18001 ã API Spec Q1đ ã API QualityPlusđ ã Dual Registration Sales: (+1) 713-964-2662 Service: (+1) 202-962-4791 Fax: (+1) 202-682-8070 Email: certification@api.org Web: www.api.org/apiqr API Individual Certification Programs (ICP®) Sales: (+1) 713-964-2662 Service: (+1) 202-682-8064 Fax: (+1) 202-682-8348 Email: icp@api.org Web: www.api.org/icp API Engine Oil Licensing and Certification System (EOLCS) Sales: (+1) 713-964-2662 Service: (+1) 202-682-8516 Fax: (+1) 202-962-4739 Email: eolcs@api.org Web: www.api.org/eolcs API Training Provider Certification Program (API TPCP™) Sales: (+1) 713-964-2662 Service: (+1) 202-682-8075 Fax: (+1) 202-682-8070 Email: tpcp@api.org Web: www.api.org/tpcp API Perforator Design Registration Program Sales: (+1) 713-964-2662 Service: (+1) 202-682-8490 Fax: (+1) 202-682-8070 Email: perfdesign@api.org Web: www.api.org/perforators API Credit Exchange (ACE™) Service: (+1) 202-682-8192 Fax: (+1) 202-682-8070 Email: exchange@api.org Web: www.api.org/ace API Diesel Exhaust Fluid Certification Program Phone: (+1) 202-682-8516 Fax: (+1) 202-962-4739 Email: info@apidef.org Web: www.apidef.org API WorkSafe™ Sales: (+1) 713-964-2662 Service: (+1) 202-682-8469 Fax: (+1) 202-682-8348 Email: apiworksafe@api.org Web: www.api.org/worksafe API-U Phone: Fax: Email: Web: (+1) 202-682-8053 (+1) 202-682-8070 training@api.org www.api-u.org API Data™ Phone: (+1) 202-682-8499 Fax: (+1) 202-962-4730 Email: apidata@api.org Web: www.APIDataNow.org API Publications Online: www.api.org/pubs Phone: 1-800-854-7179 (Toll-free: U.S./Canada) (+1) 303-397-7956 (Local/International) Fax: (+1) 303-397-2740 API Standards Phone: (+1) 202-682-8148 Fax: (+1) 202-962-4797 Email: standards.org Web: www.api.org/standards Request a Quotation: www.api.org/quote Product No H4090401