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Data Publication

Supporting data set for manuscript "Remediation of annular gas migration along cemented wellbores using reactive mineral fluids: experimental assessment of sodium bicarbonate and sodium silicate-based solutions"

Wolterbeek, Timotheus K.T.

YoDa Data Repository, Utrecht University, Netherlands

(2021)

Brief description of the Data: This folder contains data for a study on reactive sealing of microannuli along wellbore casing-cement interfaces. The data set consists of four Microsoft Excel Worksheets, containing volume, flow rate, and pressure data with time for reference and reactive flow measurements on two samples, denoted BC-1 and SIL-1 in the aforementioned study. This document provides basic descriptions of the samples, experimental procedures and data processing. For more detailed information, the reader is referred to the methods section of the main manuscript. Summary of the Study: Achieving zonal isolation along wellbores is essential for upholding the containment integrity of subsurface reservoirs and preventing fluid seepage to the environment. The sealing integrity of the Portland cements conventionally used to create hydraulic barriers can be severely compromised by the presence of defects, such as fractures or micro-annuli along casing-cement and cement-rock interfaces. A possible remediation method would be to circulate reactive fluids through the compromised cement sections and induce defect clogging via mineral precipitation. Here, we assess the sealing potential of two prospective fluids, namely sodium bicarbonate and sodium silicate-based solutions. Reactive flow-through permeametry experiments were performed on 6 m-long cemented steel tubes, bearing debonding micro-annuli of ~20 μm wide. The experiments were conducted at 50 °C and fluid pressures of up to 6 MPa. For sodium bicarbonate solution (90 g/kg-H2O concentration), reactive flow yielded only a minor reduction in the equivalent permeability of the wellbore sample, with values remaining within one order. Injection of sodium silicate solution (37.1 wt.% concentration, SiO2:Na2O molar ratio M= 2.57) resulted in a large decrease in flow rate, effectively reaching the lower measurement limit of the experimental setup within hours. However, this strong sealing effect can almost certainly be attributed to gelation of the fluid through polymerisation, rather than defect clogging via mineral precipitation. For both fluids investigated, the extent of solids precipitation resulting from single-phase injection was less than anticipated. This shortfall is attributed to ineffective/insufficient liberation of Ca-ions from the alkaline phases in the cement.

Keywords


Originally assigned keywords
Rock and melt physical properties
sealing
transport properties
cement
wellbore
zonal isolation
microannulus
precipitation
dissolution
reactive transport
flow
mineral growth
steel
Portland cement
EPOS
multiscale laboratories
rock and melt physical properties
Concrete
Permeameter
Permeability

Corresponding MSL vocabulary keywords
permeameter
permeability

MSL enriched keywords
Apparatus
fluid transport testing
permeameter
Measured property
permeability
measured property
carbon (C)
bicarbonate
sodium

MSL original sub domains

rock and melt physics

MSL enriched sub domains i

rock and melt physics
geochemistry


Source publisher

YoDa Data Repository, Utrecht University, Netherlands


DOI

10.24416/UU01-K3B1IB


Authors

Wolterbeek, Timotheus K.T.

0000-0002-4299-6585

Utrecht University;


Contributers

Wolterbeek, Timotheus K.T.

Researcher

0000-0002-4299-6585

Utrecht University;

Hangx, Suzanne J.T.

ProjectLeader

0000-0003-2253-3273

Utrecht University;


References

References

References


Citiation

Wolterbeek, T. K. T. (2021). Supporting data set for manuscript "Remediation of annular gas migration along cemented wellbores using reactive mineral fluids: experimental assessment of sodium bicarbonate and sodium silicate-based solutions" (Version 1.0) [Data set]. Utrecht University. https://doi.org/10.24416/UU01-K3B1IB


Collection Period

2020-01-14 - 2020-03-17