Sentence examples for the true formation from inspiring English sources

This paper presents a numerical method to determine connate water resistivity from the true formation resistivity.

Field application in the Bohai Gulf of China indicates that logging values deviate significantly from the true formation resistivity if the well is not logged repeatedly and quickly, so that the time effect ought to be taken into account.

Filtration causes dual-laterolog responses to deviate from the true-formation resistivity.

Resistivity logs have been consistently used to determine the saturation of water in the reservoirs by making use of the Archie's equation (Archie 1942) that shows a relationship between water saturation to the true permeable formation resistivity, the formation porosity and the formation water resistivity.

The log response for the long normal log only provides a true formation resistivity if the bed thickness is significantly greater than the electrode separation (Kearey et al. 2002).

Any mismatch between the projection formation process as reflected by the system matrix and the true projection formation process by the actual SPECT system will propagate to the reconstructed image and result in bias.

The water saturation was determined for the invaded zone using the Archie's equation given below: S_{text{W}} = frac{{a times R_{text{W}} }}{{phi^{m} }} (3)where S w = water saturation of the uninvaded zone, R t = true formation resistivity (from laterolog, LLD), ϕ = porosity values obtained from a porosity log, R w = resistivity of formation water.

The present study suggests a reasonable method to determine true formation resistivity and to evaluate a reservoir for dynamic mud filtrate invasion by history matching field data.

Generally, if a formation is invaded by saline filtrate for a week, the deep laterolog reading will be less by a factor of two or three than true formation resistivity.

After that, new correlation was developed by adapting previously presented methods to calibrate log recorded temperature by using true formation temperature from reservoir tests like DST and MDT in Persian Gulf basin.

True formation measured resistivity.