SPEC 13A Sec. 16 Drilling-grade Starch API SC13 TG08 WG05 SPEC 13A Sec. 16 Drilling-grade Starch January 26, 2015 SC13 – Drilling Completion and Fracturing Fluids

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

SPEC 13A Sec. 16 Drilling-grade Starch 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 WG5 Members Revised 01-20-2014.xlsx SC13 – Drilling Completion and Fracturing Fluids

SPEC 13A Sec. 16 Drilling-grade Starch Current Specifications 16.1 Principle 16.1.1. 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. 16.1.2. 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. SC13 – Drilling Completion and Fracturing Fluids

SPEC 13A Sec. 16 Drilling-grade Starch Table 15 – Starch physical specifications Test Parameter Specification Suspension Properties: Viscometer dial reading at 600 r/min -- in 40 g/l salt water Maximum 18 -- in saturated salt water Maximum 20 Filtrate volume -- in 40 g/l salt water, cm3 Maximum 10 -- in saturated salt water, cm3 Residue greater than 2,000 µm No Residue SC13 – Drilling Completion and Fracturing Fluids

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

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

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

SPEC 13A Sec. 16 Drilling-grade Starch Table 15 – Starch physical specifications Test Parameter Specification Suspension Properties: Viscometer dial reading at 600 r/min -- in 40 g/l salt water Maximum 18 -- in saturated salt water Maximum 20 Filtrate volume -- in 40 g/l salt water, cm3 Maximum 10 -- in saturated salt water, cm3 Residue greater than 2,000 µm No Residue

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

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

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

SPEC 13A Sec. 16 Drilling-grade Starch Option 1 – New paragraph only Option 2 – New paragraph with short testing procedure (addendum 1, voted) Option 3 – New paragraph with detailed testing procedures Option 4 – ?? SC13 – Drilling Completion and Fracturing Fluids

SPEC 13A Sec. 16 Drilling-grade Starch Old Business New Business 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