1、Specification for Downhole Well Test Tools and Related EquipmentAPI SPECIFICATION 19TT FIRST EDITION,OCTOBER 2016Special NotesAPI publications necessarily address problems of a general nature.With respect to particular circumstances,local,state,and federal laws and regulations should be reviewed.Nei
2、ther API nor any of APIs employees,subcontractors,consultants,committees,or other assignees make anywarranty or representation,either express or implied,with respect to the accuracy,completeness,or usefulness of theinformation contained herein,or assume any liability or responsibility for any use,or
3、 the results of such use,of anyinformation or process disclosed in this publication.Neither API nor any of APIs 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 desirin
4、g to do so.Every effort has been made by the Institute to ensure theaccuracy and reliability of the data contained in them;however,the Institute makes no representation,warranty,orguarantee in connection with this publication and hereby expressly disclaims any liability or responsibility for loss or
5、damage resulting from its use or for the violation of any authorities having jurisdiction with which this publication mayconflict.API publications are published to facilitate the broad availability of proven,sound engineering and operatingpractices.These publications are not intended to obviate the
6、need for applying sound engineering judgmentregarding when and where these publications should be utilized.The formulation and publication of API publicationsis not intended in any way to inhibit anyone from using any other practices.Classified areas may vary depending on the location,conditions,equ
7、ipment,and substances involved in any givensituation.Users of this specification should consult with the appropriate authorities having jurisdiction.Users of this specification should not rely exclusively on the information contained in this document.Sound business,scientific,engineering,and safety
8、judgment should be used in employing the information contained herein.Any manufacturer marking equipment or materials in conformance with the marking requirements of an API standardis solely responsible for complying with all the applicable requirements of that standard.API does not represent,warran
9、t,or guarantee that such products do 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 permissio
10、n from the publisher.Contact the Publisher,API Publishing Services,1220 L Street,NW,Washington,DC 20005.Copyright 2016 American Petroleum InstituteForewordThis specification has been developed by users/purchasers and suppliers/manufacturers of downhole well test tools intended for use in the petrole
11、um and natural gas industry worldwide.This specification is intended to give requirements and information to both parties in the selection,manufacture,testing,and use of the tools named within the scope.Furthermore,this specification addresses the minimum requirements with which the supplier/manufac
12、turer is to comply so as to claim conformity with this specification.Users of this specification should be aware that requirements above those outlined in this specification may be needed for individual applications.This specification is not intended to inhibit a supplier/manufacturer from offering,
13、or the user/purchaser from accepting,alternative equipment or engineering solutions.This may be particularly applicable where there is innovative or developing technology.Where an alternative is offered,the supplier/manufacturer should identify any variations from this specification and provide deta
14、ils.This first edition of the specification has been authored in an effort to cover the prominent range of well test tools.Additionally included are requirements for service centers to ensure these products perform as designed when maintained as defined therein.It is recognized that these requiremen
15、ts may merit some refinement following their utilization.Included in this specification are nine annexes(Annexes A through I),all of which are normative except Annexes H and I.Where referenced,these annexes provide mandatory requirements for conformance to this specification.Nothing contained in any
16、 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.Shall:As used in a standard,“shall”denotes a minimum requirement in order to conform to the standard.Should:As used in a standard,“should”denotes a recommendation or that which is adv
