Advanced Cement Lab Testing

All testing conforms to the highest standards, ensuring that test results are reliable and repeatable. At CSI Technologies, cement slurry testing is conducted according to API RP 10-B2 specifications. Specialized, or non-API testing, can also be conducted. The table below provides an overview of our cement testing capabilities.

Test Description
Thickening time Determines length of time slurry will remain pumpable under simulated well conditions
Static fluid loss Determines fluid loss characteristics of cement slurries under static conditions
Stirred fluid loss Determines fluid loss characteristics under downhole circulating conditions after stirring period
Free fluid testing with heated static period Determines volume of free fluid on top of cement slurry after being static for a period of time; conducted at limited temperature conditions and atmospheric pressure
Settling test Determines the stability of a cement slurry; can be performed under HPHT or static conditions
Compressive strength testing (nondestructive) Determines strength of cement composition under temperature conditions simulating well conditions
Crush strength testing (destructive) Indicates strength of a cement slurry after being pumped into a well and allowed to set in a static condition
Rheological testing Determines apparent flow properties of well fluids
Splitting tensile strength testing Measure of the tensile mechanical strength
Bar expansion Measure of the linear crystalline expansion of set cements
Expansion/shrinkage test Measure of the linear crystalline expansion of set cements
Pressurized mud balance testing Measures density of slurries under pressure and helps to eliminate problems with air entrainment in slurry and produces results that closely simulate downhole conditions
Bulk density testing Determines the specific gravity of liquids or solids
Fluid migration testing Equipment and procedures to test the gas migration of a cement slurry under downhole conditions
Compatibility of wellbore fluids Determines degree of compatibility of wellbore fluids in cementing operations and includes examination of rheology, static gel strength, thickening time, compressive strength fluid loss, and solids suspension
Acid solubility testing Determines percent of acid solubility of a set cement system
Pycnometer analysis Determines the bulk density of any free flowing powder
Permeability Measures the flow of fluids through the matrix of set cement sample and allows calculation of permeability
Dump bailer testing Determines length of time cement slurry can flow out of a dump bailer under downhole temperature and pressure
Heat of hydration Determines heat of hydration of cement slurries
Young's modulus Gives interpretation to stiffness or elasticity potential of cement
Poisson’s ratio Negative ratio of transverse to axial strain
Confined compressive strength Determines the compressive strength of set cement samples under confining stress; Mohr’s failure envelope, coefficient of cohesion, and friction angle can also be determined
Hydration volume reduction Measurement of the volume change of a cement slurry during setting process under downhole temperature and pressure conditions
Static gel strength Measures the time for a cement slurry to transition from a liquid to solid state
Annular seal durability Measures the resistance of cement to gas flow during repeated applications of stress
Anelastic strain Measures the amount of deformations the cement will experience when exposed to cyclic stresses
Thermal expansion Determines the coefficient of thermal expansion of a cement