WG on HTHP Rheology Winter 2016, austin, tx Rick Lukay – Chairman

AGENDA Review Charge Review of Current members Read & approve minutes from Summer meeting Old Business Action Items from last meeting Current Status Review of data and observations . New Business

CHARGE Develop a technical report on recommended testing protocols for measuring HTHP rheology of cement at greater than atmospheric pressure.

Current Member List Andrew Holley Andrew.Holley@bakerhughes.com Bruce Mackay Bruce MacKay <BMackay@slb.com> Cory Heinricks cheinricks@trican.ca Cristiane de Miranda crisrichard@petrobras.com.br Dennis Gray dennis.gray@halliburton.com Deryck Williams drrw@Chevron.com Frank Bi frankbi@graceinstrument.com Gunnar De Bruijn gunnar1@houston.oilfield.slb.com Jamie Hayes jhayes@ofite.com Jeff Moon Jeff.moon@ametek.com Jim Davison Jim.Davison@ametek.com John Singh John.Singh@halliburton.com Li Li Li.Li2@bakerhughes.com Mark Meade Mark Meade <mmeade@slb.com> Paul Sonnier psonnier@csi-tech.net Rick Lukay, Chair rlukay@ofite.com Robert Darbe Robert.Darbe@Halliburton.com Roberto Masoni roberto.masoni@ENI.com Ronnie WILLIAMS RONNIEWILLIAMS@chevron.com Simon James james6@slb.com Steve Cicchese s_cicchese@brookfieldengineering.com Toby Mclain tmcclain@fann.com Walmy Cuello Jimenez Walmy.CuelloJimenez@halliburton.com

2015 SUMMER MEETING MINUTES PLEASE READ THE MINUTES, AS I WOULD LIKE TO HAVE THE MINUTES ADOPTED AS WRITTEN RATHER THAN BORING EVERY ONE WITH THE READING OF THE MINUTES. ALSO WE ONLY HAVE ½ HOUR AND I AM SURE THERE WILL BE MUCH DISCUSION ON THE DATA.

OLD BUSINESS

Action Items from Jun. 2015 Test the slurry in a HTHP rheometer to 250 F, then cooling down to 190 F and testing again, to compare more directly to the existing RP. a stepped test be run with both heating and cooling the sample while testing at various temperature to better simulate the changing conditions the slurry sees. Tests be done as follows; 250 F at 10,000 psi versus 250 F at 1,000 psi, in the same HTHP rheometer with all other parameters being the same.

Current Status TO EXTEND THE REMAINING SUPPLY OF CEMENT BLEND, IT WAS DECIDED TO CUT THE EXISTING SAMPLES IN HALF, SO MORE LABS COULD PARTICIPATE. TO MAXIMIZE THE TESTS, SLURRIES WERE MIXED AT 300 ML AND NOT 600 AS PER THE RP. ALL TESTING IS COMPLETED AND REPORTED HERE.

REVIEW OF DATA AND OBSERVATIONS .

Labs and equipment used Chevron BHI Schluberger NAM OFITE Grace Trican Chandler Rheometer Chan, 7600 with a 2X spring Chan, 7600 Grace, M7500 OFITE, HTHP OFITE, 1100 Grace. M7500 Chan, 7550

Test #1 Test #1 Step 1 Test #1 Step 2 TPBHC 250 oF 121 C 190 oF 88 C   Test #1 Step 2 TPBHC 250 oF 121 C 190 oF 88 C PBH 10,000 PSI 69 Mpa 6,670 PSI 46 Mpa Td 60 MIN. (20 MIN.) TCOND 30 MIN 0 MIN Total time to sweep (90 MIN) (110 MIN)

TEST #2 Test #2 Step 1 Step 2 Step 3 Step 4 Step 5 TPBHC 150 oF 180 oF   Step 1 Step 2 Step 3 Step 4 Step 5 TPBHC 150 oF 180 oF 250 oF PBH 4,500 PSI 6,000 PSI 10,000 PSI Td 27 MIN 9 MIN 24 MIN (9 MIN) (27 MIN) TCOND 30 MIN Total time to sweep (57 MIN) (96 MIN) (150 MIN) (189 MIN) (246 MIN)

Test #3 Test #3 TPBHC 250 oF 121 C PBH 1,000 PSI 6.89 Mpa Td 60 MIN.   TCOND 30 MIN Total time to sweep (90 MIN)

observations Existing RP is not very useful. Temperature is the single most important parameter for good rheological data. Temperature rate is important, but mostly we must not heat the slurry too quickly. Pressure is also important, but to a lesser degree.

WHERE TO FROM HERE? Believe we have shown the existing RP to not be very realistic and that we can get realistic results from Existing HTHP Rheometers. Develop a preliminary new RP and add it to the existing RP 10B-2 as an appendex. Have the industry try out and give feed back on the RP. Where possible, have the data from the new RP be run through simulators, to be compared with field results.

discussion

NEW BUSINESS

MOVE TO ADJOURN?