1、Onshore Well Construction Interface DocumentAPI RECOMMENDED PRACTICE 97L FIRST EDITION,DECEMBER 2020Special NotesAPI publications necessarily address problems of a general nature.With respect to particular circumstances,local,state,and federal laws and regulations should be reviewed.The use of API p
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10、he Publisher,API Publishing Services,200 Massachusetts Avenue,NW,Suite 1100,Washington,DC 20001-5571.Copyright 2020 American Petroleum InstituteiiForewordNothing contained in any API publication is to be construed as granting any right,by implication or otherwise,for the manufacture,sale,or use of a
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15、ssion 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herein should also be addressed to the director.Generally,API standards are reviewed and revised,reaffirmed,or withdrawn at least every five years.A one-time extension of up to two years may be added to this review cycle.Statu
16、s 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,200 Massachusetts Avenue,NW,Suite 1100,Washington,DC 20001.Suggested revisions are invited and should be submitted to the Standards Department,API,200 Massachusetts Avenue,NW,Suite 1100,Washington,DC 20001,standardsapi.org.iiiContentsPage1 Scope.12 Normative References.23 Terms,Definitions,Acronyms,and Abbreviations.23.1 Terms a