2018 Exploration & Production Summer Standards Meeting Subcommittee 10 June 12-13, 2018 Denver, CO

2018 Summer Standards Meeting - Subcommittee on Well Cements (SC10) Agenda

SC-10 General Meeting Agenda: Subcommittee on Well Cements (SC10) Wednesday, June 13th , 2018: General Meeting SC-10 General Meeting Agenda: Feedback on Summer Session Agenda Approval of Minutes from Calgary Reports of the Task/Work Groups Old Business New Business Adjourn

Motion to Accept the Minutes as Written? Subcommittee on Well Cements (SC10) Wednesday, June 13th, 2018: General Meeting Minutes from San Antonio have been posted on the API SC-10 SharePoint Site Motion to Accept the Minutes as Written? http://mycommittees.api.org/standards/ecs/sc10/Meeting%20Materials/Forms/AllItems.aspx?RootFolder=%2fstandards%2fecs%2fsc10%2fMeeting%20Materials%2f2018%2fJanuary&FolderCTID=&View=%7bDA581A43%2d4225%2d4EC9%2dB54D%2dF5568F762EEA%7d

Reports of the Task/Work Groups Subcommittee on Well Cements (SC10) Wednesday, June 13th, 2017: General Meeting Reports of the Task/Work Groups

Subcommittee on Well Cements (SC10) Wednesday, June 13th, 2017: General Meeting Reports of the Task/Work Groups: TG on Cooperative Testing / TG on API Monogram Program / – B. Ulrich WG on Surfactant Testing – DJ Dighe WG on the Measurement of Static Gel Strength – E. Rosenbaum WG on Comparison of Conditioning Practices for Cements – L. Padilla WG on API Spec 10D Revision – J. Hebert WG on HTHP Rheology – R. Lukay WG on Triaxial Mechanical Properties of Cement – M. Benge WG on Stage Cementing Equipment – A. Sanchez Rewrite of 10TR1 – G. De Bruijn Motion to Accept Minutes as Reported

Subcommittee on Well Cements (SC10) Wednesday, June 13th, 2017: General Meeting Old Business

Subcommittee on Well Cements (SC10) Existing Documents and Status: API Specification 10A, 24th Edition, December 2010, “Specification for Cements and Materials for Well Cementing” Reaffirmed in December 2015 API RP 10B-2, Second Edition, April 2013, “Recommended Practice for Testing Well Cements” Reaffirmation will be required in H2 2018. API RP 10B-3, Second Edition, January 2016, “Recommended Practice on Testing of Well Cements used in Deepwater Well Construction” Published revised Second Edition in January 2016

Subcommittee on Well Cements (SC10) Existing Documents and Status: API RP 10B-4, Second Edition, October 2015 “Recommended Practice on Preparation and Testing of Foamed Cement Formulations at Atmospheric Pressure”, Published Second Edition revision in October 2015. API RP 10B-5, First Edition, April 2005, “Recommended Practice on Determination of Shrinkage and Expansion of Well Cement Formulations at Atmospheric Pressure”, Document reaffirmed in April 2015. API RP 10B-6, First Edition, August 2010, “Recommended Practice on Determining the Static Gel Strength of Cement Formulations”,

Subcommittee on Well Cements (SC10) Existing Documents and Status: API Specification 10D, Sixth Edition March 2002, “Specification for Bow Spring Casing Centralizers” Document reaffirmed April 2015. API RP 10D-2, 1st Edition, “Recommended Practice for Centralizer Placement and Stop Collar Testing”, August 2004 Document reaffirmed in April 2015. API RP 10F, 3rd Edition, April 2002 “Performance Testing of Cementing Float Equipment”

Subcommittee on Well Cements (SC10) Existing Documents and Status: API Technical Report 10TR1 Second Edition, September 2008, “Cement Sheath Evaluation” API Technical Report 10TR2 First Edition, July 1997, Shrinkage and Expansion in Oilwell Cements Reaffirmed September 2002 Technical Report 10TR6, “Evaluation and Testing of Mechanical Cement Wiper Plugs”, 1st Edition, July 2015 API 10TR7 on “Mechanical Behavior of Cement”, 1st Edition, December 2015

Subcommittee on Well Cements (SC10) Existing Documents and Status: API RP 65-1, 1st Edition, “Cementing Shallow Water Flow Zones in Deepwater Wells”, September 2002 Reaffirmed 2012. API Standard 65-2, 2nd Edition, December 2010, “Isolating Potential Flow Zones During Well Construction”, Reaffirmed November 26th 2016.

Subcommittee on Well Cements (SC10) New Document Status: Two key considerations in our document strategy Revision of existing documents to stay current with technology and industry change. Development of new documents to address existing gaps in existing documentation. Revision of existing documents: Revision of API Specification 10A, 24th Edition, December 2010, “Specification for Cements and Materials for Well Cementing” 25th Edition Ballot closed 12 January 2018. Document is currently in the API Publications queue. Revision of API RP 10B-2, Second Edition, April 2013, “Recommended Practice for Testing Well Cements” Document currently under revision using updates from API Spec 10A as foundation for changes.

Subcommittee on Well Cements (SC10) New Document Status: Revision of API RP 10B-6, First Edition, August 2010, “Recommended Practice on Determining the Static Gel Strength of Cement Formulations”, Document revision is underway by Work Group. Work Group includes research element to better understand the measurement techniques and how they relate to one another. Revision of API RP 10D, Sixth Edition March 2002, “Specification for Bow Spring Casing Centralizers” Document revision currently underway by Work Group to include performance testing requirements for centralizers that are to be used in applications where they are run through restrictions that are smaller than the hole size in which they are to be set. Revision of API RP 10F, 3rd Edition, April 2002 “Performance Testing of Cementing Float Equipment” WG will publish rewrite as API Specification 10F, 4th Edition This document will include required specifications and the associated performance testing protocols for the manufacturing of Cement Float Equipment. Document is now in the API publication the queue.

Subcommittee on Well Cements (SC10) New Document Status: Revision of API RP 65-1, 1st Edition, “Cementing Shallow Water Flow Zones in Deepwater Wells”, September 2002 Document is currently in page proof expected publishing date Summer 2018 as API Standard 65-1. Revision of API Technical Report 10TR1 Second Edition, September 2008, “Cement Sheath Evaluation” WG established and document is currently under revision to add key missing elements such as cement verification using surface indicators. Revision of API Bulletin E3, 1st Edition, Environmental Guidance Document, January 1993, “Well Abandonment and Inactive Well Practices for U.S. Exploration and Production Operations” Published 2nd Edition, April 1, 2018 New document indented to fill current gap in the industry until a new API RP can be developed.

Subcommittee on Well Cements (SC10) New Document Status: New documents under development: Creation of API Technical Report “Stage Cementing Equipment” Intended to fill current gap in SC 10 documents and lay foundation for a potential future specification. Creation of API RP 65-3, 1st Edition, “Well Abandonments.” Intended to fill current gap in SC 10 documents. Creation of API Technical Report “Foam Cement Behavior Under Well Conditions” Intended to summarize field work and testing conducted within the WG. Creation of API Technical Report “Triaxial Mechanical Properties of Cement and Testing Procedures ” Creation of API Technical Report “Testing Procedures for Measuring the HTHP Rheology of Cement Slurries”

Subcommittee on Well Cements (SC10) New Document Status: New documents under development: Creation of API Technical Report “Comparison of Conditioning Practices for Cement” Intended to improve procedures in existing SC 10 documents and lay foundation for a potential future modifications of existing documentation.

Subcommittee on Well Cements (SC10) Wednesday, June 13th , 2018: General Meeting New Business

Subcommittee on Well Cements (SC10) Wednesday, June 13th, 2018: General Meeting New Business: SC10 Standards Meeting Agenda – Feedback and further improvement opportunities. New Work Items

Alternative Mixing Procedure RP 10B-2

Preparation of Slurries

The Problem Cement slurries foam Non-foamer not effective in some cases Latex / thixotropic / high density slurries Results in testing - a lesser amount (mass) of cement slurry Excess foaming affects Thickening time tests Sedimentation Free water Rheology Compressive strength Expansion

Alternative Mixing Procedure cont’d Thickening Time Test Lesser amount of slurry is placed in the slurry cup 2 thoughts to correct / compensate Change diaphragm Hub baffled Flat rubber Flat metal / flat rubber on top Pull Vacuum on slurry 0.1 atm in SA Lab 15700-1-1 Thickening time start Bc 4, 3:00 Bc 4 normal, rubber flat diaphragm 15700-1-2 Thickening time start Bc 11, 3:00 Bc 9 1.5 mins vacuum, rubber flat diaphragm 15700-1-3 Thickening time start Bc 7, 3:00 Bc 2 normal, metal flat diaphragm 15700-1-4 Thickening time start Bc 10, 3:00 Bc 6 1.5 mins vacuum, metal flat diaphragm

Diaphragm Choices Hub baffled Flat rubber Flat metal flat rubber on top

Baffled Diaphragm

Applying Vacuum

Effects of Foaming Volume after mixing Volume after vacuum released Volume Theoretical 15700-1-2 15700-1-6 cc's cc's difference from original % diff Volume slurry 615 0.0 vol after mixing 811 196 31.9 676 61 9.0 vol after Vacuum 661 46 7.5 623 8 1.3 vol after release vac 737 122 19.8 651 36 5.5

Observations on Cements that Foam (consistometer test cell) vol with diaphragm flat 477 cc's baffled 472 cc's Cement design 1 2 Density PCF/PPG atm bal. 113/15.1 111/14.8 press bal. 118.5/15.8 125/16.7 % 4.87 12.61 mL missing 21.90 56.76

Lab Equipment Exist – Modified Foam Jar Connect fitting to jar cover to accommodate vacuum fittings

Way Forward?

Thickening Time Stirring RPMs Why Do we stir at 150 RPMs? Old procedure for salt cement - Calvert? Do we simulate batch mixing at same RPM’s as pumping cement through Coiled tubing???? Concerned with 50 sec initial mixing RPMs but 150 rpms is ok for long thickening times? 10 hours = 36,000 sec Velocity changes from different well geometries ie. slurry inside casing then in annulus Thickening time test performed at 200, 150, 100 and 50 rpms. longer thickening times are recorded as RPMs are reduced. 50 RPMs – 173 mins. 100 RPMs – 169 mins. 150 RPMs – 148 mins. 200 RPMs - 151 mins

Subcommittee on Well Cements (SC10) Wednesday, June 13th , 2018: General Meeting Upcoming Meetings: 2019 E&P Winter Standards Meeting: January 21-25, 2019, Hyatt Regency San Antonio, San Antonio, Texas 2019 E&P Summer Standards Meeting: June 24 - 28, 2019, Hyatt Regency New Orleans, LA E&P Winter Standards Meeting, No information within API Program 2020 E&P Summer Standards Meeting: June 29-July 3rd, Grand Hyatt, Washington DC

Subcommittee on Well Cements (SC10) Wednesday, June 13th , 2018: General Meeting Any Other New Business?

Subcommittee on Well Cements (SC10) Wednesday, June 13th , 2018: General Meeting Motion to Adjourn 35