Patent ID: 8615370

Claim:
A method of estimating a mass of silicates in a fluid flowing in a member, comprising: inducing a magnetic field in the fluid to align nuclei of the fluid along a direction of the magnetic field; transmitting radio frequency signals into the fluid from a transmitter to excite nuclei present in the fluid; receiving signals from the nuclei responsive to the transmitted radio frequency signals at a receiver to obtain a Si 29 NMR spectrum, an H 1 NMR spectrum and a C 13 NMR spectrum; and determining a first mass from the Si 29 NMR spectrum obtained from the fluid; determining a second mass from the H 1 NMR spectrum obtained from the fluid; determining a third mass from the C 13 NMR spectrum obtained from the fluid; subtracting the third mass from the second mass to obtain a fourth mass; and subtracting the fourth mass from the first mass to estimate the mass of silicates in the fluid.