Method for correcting density measurements of formation by forming during drilling, affected by spacing from the tool, and a computer program product for a mu00ecdia warehousing legu00ecvel by computer to correct measurements of density of formation by forming during The perforation.

摘要

Method for correcting density measurements of formation by forming during drilling, affected by spacing from the tool, the product of computer program in a mu00ecdia warehousing legu00ecvel by computer to correct measurements of density of the formation by forming during Drilling.A method to conduct measurements of density environments corrects big well spacing, by the addition of a second expression of correction the method of spine and rib. The second term is a correction based on an apparent spacing is estimated using the photoelectric effect of mud.This correction in the expression depends on the properties of the mud, in terms of correction and the apparent spacing and thus requires calibration of property for each well. The calibration can be done using the information available azimutais Cora the tool when the tool LWD, The is rotating.At each depth in homogeneous formation may be a series of measures of density with different spacing from the tool when the tool is not centered in the well bore. This information is used to set up a correct spacing, adapts perfectly The properties of the mud.