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

2. 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

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

4. Current Member List Andrew Holley Andrew.Holley@bakerhughes.com
Bruce Mackay
Bruce MacKay
Cory Heinricks
Cristiane de Miranda
Dennis Gray
Deryck Williams
Frank Bi
Gunnar De Bruijn
Jamie Hayes
Jeff Moon
Jim Davison
John Singh
Li Li
Mark Meade
Mark Meade
Paul Sonnier
Rick Lukay, Chair
Robert Darbe
Roberto Masoni
Ronnie WILLIAMS
Simon James
Steve Cicchese
Toby Mclain
Walmy Cuello Jimenez

5. 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.

6. OLD BUSINESS

7. 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.

8. 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.

9. REVIEW OF DATA AND OBSERVATIONS .

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

11. 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)

13. 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)

15. 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)

18. 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.

19. 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.

20. discussion

21. NEW BUSINESS

22. MOVE TO ADJOURN?