API SC13 TG08 WG05 SPEC 13A Sec. 16 Drilling-grade Starch SC13 – Drilling Completion and Fracturing Fluids June 17, 2014

SPEC 13A Sec. 16 Drilling-grade Starch SC13 – Drilling Completion and Fracturing Fluids Call meeting to order Proposed Agenda: 1.Background 2.Discuss proposed addendum 3.Action items

Work Group 05 Formed: January 2012 Charge: The Work Group is expected to review the current API Specifications for Starch in 13 A and suggest revision and/or modification. SC13 – Drilling Completion and Fracturing Fluids SPEC 13A Sec. 16 Drilling-grade Starch

Roll Call How to determine Quorum? VOTE SC13 – Drilling Completion and Fracturing Fluids WG5 Members Revised xlsx

SPEC 13A Sec. 16 Drilling-grade Starch Current Specifications SC13 – Drilling Completion and Fracturing Fluids 16.1 Principle Drilling grade starch can be manufactured from several kinds of native starches. The starch should be made cold water hydratable (pregelatinized) and may be treated further in such a way that it is suitable for use as a filtrate reducing agent in water-base drilling fluids Drilling grade starch should be free-flowing and free from lumps. Drilling grade starch shall be deemed to meet this International Standard if a composite sample representing no more than one day's production conforms to the physical specifications of Table 15, represents the product produced, and is controlled by the manufacturer.

Table 15 – Starch physical specifications Test ParameterSpecification Suspension Properties: Viscometer dial reading at 600 r/min -- in 40 g/l salt waterMaximum in saturated salt waterMaximum 20 Filtrate volume -- in 40 g/l salt water, cm 3 Maximum in saturated salt water, cm 3 Maximum 10 Residue greater than 2,000 µmNo Residue SPEC 13A Sec. 16 Drilling-grade Starch SC13 – Drilling Completion and Fracturing Fluids

SPEC 13A Sec. 16 Drilling-grade Starch Previous meetings: 1.March 7, 2012 – Conference Call 2.May 1, 2012 – Cargill Office – The Woodlands 3.June 11, 2012 – Summer meeting, Denver 4.December 4, (Houston),video conference call 5.January 22, Winter meeting, New Orleans 6.March 7, 2013 – MI-Swaco, Houston 7.June 24, 2013 – Summer meeting, Washington DC 8.September 12, 2013 – Baroid, Houston, Had no quorum 9.January 21, 2014 – Dallas SC13 – Drilling Completion and Fracturing Fluids

SPEC 13A Sec. 16 Drilling-grade Starch SC13 – Drilling Completion and Fracturing Fluids Temperature Stability Particle size (PSD) Bacteria Content Suspension Properties Fluids Loss Control Discussed Topics:

SPEC 13A Sec. 16 Drilling-grade Starch SC13 – Drilling Completion and Fracturing Fluids

SPEC 13A Sec. 16 Drilling-grade Starch SC13 – Drilling Completion and Fracturing Fluids

Table 15 – Starch physical specifications Test ParameterSpecification Suspension Properties: Viscometer dial reading at 600 r/min -- in 40 g/l salt waterMaximum in saturated salt waterMaximum 20 Filtrate volume -- in 40 g/l salt water, cm 3 Maximum in saturated salt water, cm 3 Maximum 10 Residue greater than 2,000 µmNo Residue SPEC 13A Sec. 16 Drilling-grade Starch

SC13 – Drilling Completion and Fracturing Fluids Action Items: Develop and addendum to the current API specifications in 13 A to address the temperature stability Propose initiating a new work group under TG8 to develop new specifications for high temperature starches OR change the charge of existing WG

SC13 – Drilling Completion and Fracturing Fluids SPEC 13A Sec. 16 Drilling-grade Starch Proposed addendums Addendum 1 Addendum 2

SC13 – Drilling Completion and Fracturing Fluids SPEC 13A Sec. 16 Drilling-grade Starch Voted addendum Addendum 1 What is next?

Old Business New Business SPEC 13A Sec. 16 Drilling-grade Starch SC13 – Drilling Completion and Fracturing Fluids

SPEC 13A Sec. 16 Drilling-grade Starch Thanks to all workgroup members and the participant labs SC13 – Drilling Completion and Fracturing Fluids

SPEC 13A Sec. 16 Drilling-grade Starch Motion to Adjourn? SC13 – Drilling Completion and Fracturing Fluids