PEMEX Abkatun implementation ofmethodology to 11 meteringsystems to CNH compliance.

Session ID #8-1864

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PHOTOGRAPHY & VIDEO RECORDING POLICY

• Juan NajeraApplications EngineerEmerson Automation SolutionsPresenter

• Joao NizioSales Director, Flow Latin AmericaEmerson Automation SolutionsCo-presenter

PRESENTERS

AGENDA

• Company Information• Location• Subject• Problem – Compliance with the National Regulation• Scope• Solution• Business Results Achieved• Summary• Where to Get More Information

COMPANY INFORMATION

Abkatun Asset is located in Campeche basin, between thestates of Campeche and Tabasco and about 132km Northeastof the Dos Bocas Port and maritime terminal and the owner isPemex. The field started production in 1980 , and after peakingin February 1996 at 754,934 BPD, it is composed of 18 fields,10 of which are in production. Nowadays is a mature field, andthe production is 50,000 BPD of crude and 95 MMSCFD of gas.“PEMEX has been working at this asset for almost 40 years”.

LOCATION

AS-01 BLOCK

CRUDE OIL & GAS TRANSPORTATION NETWORK

Offshore

Onshore

Abkatun

SUBJECT

Due Mexico Energy Reform (2013), PEMEX, has to meet withTechnical Guidelines for Hydrocarbon Measurement (TGHM) byNational Hydrocarbons Commission (CNH) that regulates theUpstream sector at Mexico.

These Guidelines are mandatory for all Petroleum Operatorsregarding the Measurement Mechanisms used during HydrocarbonExtraction and Exploration in Mexico, in accordance with a Contractor an Assignment, from the well and, when applicable, the oilfieldup to the integration with the Hydrocarbon Storage andTransportation system, as well as at the Measurement Point.

PROBLEM – COMPLIANCE WITH LOCAL REGULATION

Abkatun Asset have eleven (11) Metering Systems for CustodyTransfer that has to meet the Measurement Technical Guidelines,that means to have:

- Metering systems standardization.- Ensure reliable metering systems.- Demonstrate traceability of all measurements.- The information generated of each metering system like control

charts, reports of maintenance, calibrations, etc., must be availablevia online (electronic logbook).

- Operation personnel must be properly trained in their dedicatedmeasurement systems.

CUSTODY TRANSFER SYSTEMS

# FACILITY APPLICATIONTAG ID

MEASUREMENT SYSTEM

# OF METER RUNS METER RUN ID TECNOLOGY OF MEASUREMENT

1 Abkatun-D CRUDE OIL SM-3110 3FE-3117 Coriolis FE-3118 Coriolis FE-3119 Coriolis

2 Abkatun-D GAS PA-3120 3FE-3120 GUSMFE-3121 GUSMFE-3122 GUSM

3 PB-Litoral-T CRUDE OIL PA-3101 3FE-3111 CoriolisFE-3112 CoriolisFE-3115 Coriolis

4 PB-Litoral-T GAS PA-3102 2 FE-3121 V-ConeFE-3122 V-Cone

5 PB-Litoral-A CRUDE OIL PA-3103 3FE-3801 CoriolisFE-3804 CoriolisFE-3811 Coriolis

6 E-Litoral-A GAS PA-5102 3FE-5103 GUSMFE-5104 GUSMFE-5105 GUSM

7 E-Litoral-A GAS PA-5101 3FE-5106 GUSMFE-5107 GUSMFE-5108 GUSM

8 TMDB CRUDE OIL SM-900A 2 FE-910 Positive DisplacementFE-920 Positive Displacement

9 TMDB CRUDE OIL SM-400 3FE-400 CoriolisFE-401 CoriolisFE-402 Coriolis

10 TMDB CRUDE OIL SM-900B 3FE-930 CoriolisFE-940 CoriolisFE-950 Coriolis

11 TMDB GAS PA-1200 3FE-1201A GUSMFE-1201B GUSMFE-1201C GUSM

SOLUTION

Part of the solution was to implement the model described bythe standard ISO 10012 “Measurement Managed Systems”, butalso including the CNH Guidelines:

SOLUTION - SCOPE

The Emerson Flow Lifecycle Service team provided a consultantservices for the Oil & Gas Measurement Systems following theLocal Regulation.The contract considered the following services:• Offshore walkdowns.• Metrological diagnosis for all existing oil & gas metering systems.• Delivery of technical documents to comply with CNH regulations.• Certification of meters and instrumentation.• Identification of areas of improvement to ensure the availability of

the measurement systems.

WALKDOWNS

Walkdowns at the facilities, toverify the actual conditions ofeach metering system, andidentify areas of improvement.

CHALLENGES

In order to implement the action plan, the following activities wererequired:

• Diagnosis of all 11 measurement systems and components toguarantee optimal operation and identify opportunities ofimprovement.

• Performing calibration for all instruments that applied on eachmeasurement system and get traceability to local entity ofaccreditation (CENAM).

• Determination of uncertainty level of each metering system.

SOLUTION – DELIVERABLES

Procedures Uncertainty calculations

Certificates Metrological Confirmation

Verification Lists

Metrological Requirements

Engineering Documents

BUSINESS RESULTS ACHIEVED

• Creation of an electronic log book to have an online access to allthe metering systems information.

• Certification of the metering systems according CNH Guidelines.• Compliance with the uncertainty level for all metering systems.• Operational improvements to reduce the error level for crude oil

from 4% to 0.3% and for gas from 9% to 1% that means measurewith better accuracy and significant reduction of unaccounted loss.

• Reduction of penalties for equipment out of compliance for up to20%.

• Increase in efficiency (effective reduction of 30% of costs).

SUMMARY

• Emerson worked with the client as one team to design acomplete solution as a trusted advisor for PEMEX.

• CNH approval of the 11 measurement systems.• Provide a significative reduction on the uncertainty level of

each metering system.• Areas of improvement on the metering systems were identified

and resolved.

WHERE TO GET MORE INFORMATION

• For more information, please visit:• https://www.pemex.com• https://www.emerson.com/catalog/en-us/emerson-liquid-

measurement-systems

• Please visit our Flow Systems and Solutions Booth.

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