Apparent DIp

Iain,

 

A quick look method: If the sinusoids are relatively well centered, you can have a very close estimate of the apparent dip, just centering it in the track of WellEye.

 

We used this method as a quick check for long time in Brazil, and never found significant errors.

 

You can use the RTGS App Dip conversion or DXI to check validity of this.

 

Regards,

 

Guillermo

 

 

Subject: Re: Apparent DIp

 

Iain,

This is the equation you're looking for :

Apparent dip relative to curtain section = Bed True Dip x Sin((90.0 - Bed Azimuth + Traj Azimuth) 

Note that trajectory's inclination plays no role here. 

Regards

Farid

At 09:41 AM 01/10/2007, Iain Donald wrote:

Hi there Geosteerers,
                          I am looking for the formula that allows me to calculate the apparent dip along the section of the azimuth of the wellbore.

I can input true dip and azimuth and wellbore dip and azimuth.

Note that the apparent dip generated in Welleye is relative to wellbore.

Thanks

Iain