January 28

From Open Energy Information



EGS Collab Daily Shift Report

Date:  01/28/20

Written by:  Earl Mattson

SURF Personnel/Guide: Hari N., Julia C, Carlo P, and George V.

Location(s): 4850 West Access Drift Collab/SIGMA-V site

 

Summary: 

Goals for today was to:

·      Inject C-dot, NaCl cocktail as conservative tracers

·      Measure Break Through Curves (BTC) at production locations

·      Measure flow rate, pH, EC and dissolved oxygen at flow locations

·      Set up C-dot batch test

·      Set up DAS

 

Experiment inspection – System was flowing well.  No leaks.

 

Tracer Injection – Tracer injection started at 10:13 on 01/28.  A mixture of C-dots and NaCl was placed in the ISCO pump in the newest injection port after Panel 1.   Water was back flushed from the injection line tee through the ISCO pump to a graduated cylinder.  The volume of this backflushed water was recorded and the concentration was measured.  Results from this test suggests that approximately 14% of the C-dot mass was retained in the ISCO pump/tubing and the tee/valve connection to the injection line.  We will attempt to verify these numbers by Cl.

 

Tracer Detection – Tracer was detected in both PB and PI.  Tracer arrived first in PB.  The PB and PI curves are quite similar with potential multiple superimposed BTCs. No C-dots were detected in PDT and PST.  Fraction collectors were setup for overnight collection on PI and PB.

 

Flow rate – Carlo measured production zones.

Carlo did not have time to measure EC and DO.  pH was measured with an electrode. He will get the EC/DO measurements tomorrow.

 

 

Flow (ml/min)

EC

pH

DO

EI-=collar

4

 

7.61

 

OT

0.4

 

8.02

 

PB

145

 

6.95

 

PI

225

 

6.93

 

PST

2.7

 

6.63

 

PDT

10

 

7.97

 

PSB

0.5

 

7.8

 

PDB

2

 

10.37

 

Total flow rate = 390 ml/min measured (97%), 386 ml/min measured by Badgers.  Weep was pretty dry.  Injectate pH = 7.25. 

 

C-dot batch test – A batch sorption test was set up by 1:15 pm.  The purpose of this test was to measure if C-dots sorb to the poorman formation.  Hari had collected some rocks from the drift and crushed and mill them at INL to less than 100 mesh.  Four pairs of test tubes were used; PI H2O only, PI H2O and rock, 10 ppm C-dot solution, and 10 ppm C-dot and rock solution.  We used a 1to1 rock–water solution by weight. Samples were mixed using a Vari-Mix test tube rocking shaker. Results were inconclusive.  The PI water with and without crushed rocks as well as the C-dot standard showed no change.  The 10 ppm C-dot solution mixed with crushed rock exhibited a great decrease in the C-dot concentration.  Two possible reasons include C-dot sorption to the crushed rocks or C-dot filtering in the 0.45 um filters that were partially plugged with rock particles.  Hari and I will investigate this further tomorrow.

 

DAS set-up – Julia was successful in setting up the DAS by borrowing a monitor from the DTS system. She was able to connect to the fiberoptic cable, the GPS clock and allowing remote access to the DAS unit. Testing of the DAS was performed by tapping on the fiberoptic cables.

 

Lead Researcher:  Earl Mattson

 

Documents or Procedures: JHAs: EGS-009 and EGS-016.

 

Inspections: Checked that eye washes were in compliance.  Check grounding of test tube shaker.

 

Materials Receiving/Shipping: N/A

 

Comments:  N/A

 

Recommendations: N/A

 

Irregularities: N/A

 

Acts of Safety: General cleanup of the work area was performed.

 

Near Misses or Incidents:  N/A

 

EGS Collab Personnel Hours (Surface and Underground):

 

 

Name

Surface Hours

Underground Hours

Time In

Time Out

Time In

Time Out

1

Earl Mattson

6:30

17:30

7:30

17:00

2

Hari Neupane

6:30

17:30

7:30

17:00

3

Carlo Primo

6:30

17:30

7:30

17:00

4

Julia Correa

7:00

17:30

8:00

17:00

5

George Vandine

6:30

17:30

8:00

17:00

 

1 28 1.png

Tool Box

1 28 2.png

Photo of ISCO pump rinse water

1 28 3.jpg

 Julia with successful DAS connection

1 28 4.jpg

Break through curves (not time corrected)

1 28 5.jpg

C-dot batch sorption test

1 28 6.png

Earl’s field notes