Abstract:

Laboratory data were collected and saved in Excel spreadsheets. This includes grinding of the nanoparticles, fluid loss, consistometer, tensile testing, UCS, shear bond, and thickening time testing. The laboratory data Excel files were created after each test was run to ensure that all data was collected in a timely manner. FEA (Finite Element Analysis) data were saved as generated and as images after each simulation was run. These simulations are done in ANSYS. Any design of equipment has been created and saved as a Word document. The dataset is organized with a subdirectory dedicated to each Task identified by the project, defined in the files contained in the Reports subdirectory. (Task 1 = Finite Element Analysis using conventional parameters, Task 2 = Cement design methodology and storage/nanoparticle preparation, Task 3 = Cement fluid loss and rheology testing, Task 4 = Cement thickening time testing, Task 5 = Brazilian testing, Task 6 = UCS and shear bond testing, Task 9 = FEA model validity of study parameters). There are two model versions: PR1-FEA_Model and PR3-FEA_Model, which represent conventional information and parameters obtained by the current study, respectively. Test results may be named to indicate multiple analysis of multiple samples of the same formulation, run in order to minimize any error related to the presence of cracks and micro-fractures.

Suggested Citation:

Hareland, Geir, Runar Nygaard, Jarrett Wise, Amin Atashnezhad, Vigleik Nicolai Kjeldal, and Mark Ritchie. 2023. Properties of wellbore cement with nanoparticles. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/C72TAJJS

Purpose:

To investigate the addition of various additives to wellbore cement to determine how rheological and mechanical properties will be altered.

Data Parameters and Units:

Effective hoop stress (MPa), effective radial stress (MPa), thickening time (hours, minutes), consistency (Bc), compressive stress (psi), stress concentrations (psi), fluid loss (mL), shear stress (lbf/100ft^2), tensile strength (psi), load (lbf), average shear bond strength (psi), shear strength (psi), depth (meters), hole size (centimeters), casing size (centimeters), Young's modulus (GPa), Poisson's ratio (unitless), maximum horizontal stress (MPa), minimum horizontal stress (MPa), vertical stress (MPa), pore pressure (g/cc), mass (g), temperature (Fahrenheit), mass concentration (%), UCS (psi)

Methods:

High-speed grinding to create nanoparticles. ANSYS is used to perform FEA analyses on cement. Tensile/Brazilian testing to determine the tensile strength of the various cement sets. UCS testing to obtain unconfined compressive strength data for the various cement sets. Shear bond and shear bond friction testing to determine the shear bond strength and the friction of the cement. Tensile bond testing of the cement. Fluid loss and rheology tests of the cement slurries. Thickening time testing of the cement slurries.

Individual Files: