_RP_11S7-1993_2013_scan.pdf

Recommended Practice on Application and Testing of Electric Submersible Pump Seal Chamber SectionsAPI RECOMMENDED PRACTICE 11S7FIRST EDITION,JULY 1993REAFFIRMED,OCTOBER 2013Recommended Practice on Application and Testing of Electric Submersible Pump Seal Chamber SectionsUpstream SegmentAPI RECOMMENDED PRACTICE 11S7FIRST EDITION,JULY 1993REAFFIRMED,OCTOBER 2013A P I RPlrLLS7 93 0732290 0514611 3TL RP 1157:Recommended Practice on Application and Testing of Electric Submersible Pump Seal Chamber Sections TABLE OF CONTENTS(Continued)3 Page 10.1 Shipping.28 10.2 Handling.28 10.3 Storage.28 SECTION 10-HANDLING,SHIPPING,AND STORAGE A P I RP*lLS7 93 W 0732290 05l4bl2 238 4 American Petroleum Institute POLICY API PUBLICATIONS NECESSARILY ADDRESS PROB-LEMS OF A GENERAL NATURE.WITH RESPECT TO PARTICULAR CIRCUMSTANCES,LOCAL,STATE AND FEDERAL LAWS AND REGULATIONS SHOULD BE REVIEWED.API IS NOT UNDERTAKING TO MEET DUTIES OF EMPLOYERS,MANUFACTURERS,OR SUPPLIERS TO WARN AND PROPERLY TRAIN AND EQUIP THEIR EMPLOYEES,AND OTHERS EXPOSED,CONCERN-ING HEALTH AND SAFETY RISKS AND PRECAU-TIONS,NOR UNDERTAKING THEIR OBLIGATIONS UNDER LOCAL,STATE,OR FEDERAL LAWS.NOTHING CONTAINED IN ANY API PUBLICATION IS TO BE CONSTRUED AS GRANTING ANY RIGHT,BY IMPLICATION OR OTHERWISE,FOR THE MANU-FACTURE,SALE,OR USE OF ANY METHOD,APPA-PATENT.NEITHER SHOULD ANYTHING CON-RATUS,OR PRODUCT COVERED BY LETTERS TAINED IN THE PUBLICATION BE CONSTRUED AS FRINGEMENT OF LETTERS PATENT.GENERALLY,API STANDARDS ARE REVIEWED AND REVISED,REAFFIRMED,OR WITHDRAWN AT LEAST TENSION OF Up TO TWO YEARS WILL BE ADDED TO THIS REVIEW CYCLE.THIS PUBLICATION WILL NO LONGER BE IN EFFECT FIVE YEARS AFTER ITS DARD OR,WHERE AN EXTENSION HAS BEEN GRANTED,UPON REPUBLICATION.STATUS OF THE PUBLICATION CAN BE ASCERTAINED FOR THE API AUTHORING DEPARTMENT(TEL.214-748-3841).A CATALOG OF API PUBLICATIONS AND MATERIALS TERLY BY API,1220 L ST.,N.W.,WASHINGTON DC 20005.INSURING ANY ONE AGAINST LIABILITY FOR IN-EVERY FIVE YEARS.SOMETIMES A ONE-TIME EX-PUBLICATION DATE AS AN OPERATIVE API STAN-IS PUBLISHED ANNUALLY AND UPDATED QUAR-A P I RPxLLS7 93 H 0732290 05L4b13 374 H RP llS7:Recommended Practice on Application and Testing of Electric Submersible Pump Seal Chamber Sections FOREWORD 5(a)This publication is under the jurisdiction of the API Committee on Standardization of Production Equipment.(b)American Petroleum Institute(API)Recommended Practices are published to facilitate the broad availabil-ity of proven,sound engineering and operating practices.These Recommended Practices are not intended to obvi-ate the need for applying sound judgement to when and where these Recommended Practices should be utilized.(c)The formulation and publication of API Recommended Practices is not intended to,in any way,inhibit anyone from using any other practice.(d)Any Recommended Practice may be used by anyone desiring to do so,and a diligent effort has been made by API to assure the accuracy and reliability of the data contained herein.However the Institute makes no rep-resentation,warranty or guarantee in connection with the publication of any Recommended Practice and hereby expressly disclaims any liability or responsibility for loss or damage resulting from its use,for any violation of any federal,state or municipal regulation with which an API recommendation may conflict,or for the infringement of any patent resulting from the use of this publication.API RP*11S7 93 m O732290 0514614 O00 m 6 American Petroleum Institute SECTION 1 GENERAL 1.1 Introduction This recommended practice applies to the seal chamber section used in support of an electric submersible motor.Seal chamber sections are assemblies connected in tan-dem with oil filled motors to provide several supporting functions to the ESP system.They are also referred to as protectors,equalizers,or seal sections.1.2 scope This RP contains tutorial,testing,and failure evaluation information.It provides a general understanding of con-struction and functioning of seal chamber sections and identification of well conditions,system requirements and characteristics that influence component selection and application.Also included is information needed to evaluate causes of seal chamber section failures.Testing sections establish acceptable test procedures and criteria to help verify seal chamber section functionality.General shipping and handling information is also included.A P I RPU11S7 93 0732290 0514615 T47 RP 1157:Recommended Practice on Application and Testing of Electric Submersible Pump Seal Chamber Sections 7 SECTION 2 DEFINITIONS Bag-The bladder.Barrier Fluid-Blocking Fluid.Bladder-An elastomeric membrane within the seal chamber section that separates the filling fluid from the well fluid.Blocking Fluid-A heavy fluid occasionally used to separate well fluid and filling fluid.Chamber-The enclosed compartment which houses the labyrinth or bladdeds).Check Valve-Mechanical devices that allow one-directional flow of fluid when a differential pressure e