1、Specification for Lease Automatic Custody Transfer(LACT)Equipment API SPECIFICATION 11 N FOURTH EDITION,NOVEMBER 1,1994 American Petroleum Institute1220 L Street,NorthwestWashington,D.C.20005 ii?Specification for Lease Automatic Custody Transfer(LACT)Equipment Exploration and Production Department A
2、PI SPECIFICATION 11 N FOURTH EDITION,NOVEMBER 1,1994 American Petroleum Institute 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.API is not undertaking to meet th
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14、itute CONTENTS 1 SCOPE.1.1 Coverage.1.2-1.3-1.4 1.5.1.6 1.7-1.8 Page 1 1 1 1 1 1 1 2 REFERENCES AND ABBREVIATIONS.2 3 DEFINITIONS.3 3.1.3 3.2.3 4 SHOP ASSEMBLY,TESTING,AND WARRANTY.3 4.1.3 4.2.3 4.3 3 5 MECHANICAL AND HYDRAULIC SPECIFICATIONS.3 5.1 Skid Mounting.3 5.2-5.3 5.4 5.5 Hydraulic Assembly.
15、Piping.5.6 Weather Protection.3 3 3 3 3 6 CHARGING PUMP AND MOTOR.3 6.1 Pump.3 6.2.3 6.3.3 6.4-4 6.5.6.6 6.7 6.8 6.9 6.10 6.11 Motor.4 4 4 4 4 4 4 7 STRAINER AND/OR(OPTIONAL)AIR/GAS ELIMINATOR.4 7.1-4 7.2.4 7.3.7.4-7.5 4 4 4 8 SEDIMENT AND WATER PROBE,MONITOR,AND DIVERTER VALVE.4 8.1.4 8.2.4 8.3 Div
16、erter Valve(Optional).4 8.4 4 iii 8.5 4 9 DISPLACEMENT METER OR TURBINE METER.4 9.1.4 10 THERMOWELLANDTHREE-WAYPROVERLOOP.5 10.1 Thermowell.5 10.2.5 10.3 Prover Loop.5 10.4 10.5 5 5 11 BACK-PRESSURE VALVE.5 11.1 11.2 11.3 11.4 12 SAMPLING.12.1 General Considerations.12.2 Sample Connection.12.3 Sample Probe.12.4 Sample Stream Piping.12.5 Sampler.12.6 Sample Container.13 ELECTRICAL.13.1.13.2 13.3 13.4 13.5-13.6 Safety Features.13.7 13.8 13.9 .13.10.13.11.13.12 Power Enclosure.13.13.13.14.13.15 Ala