Formation dip geo-steering method

Details Formation dip geo-steering method Formation dip geo-steering method

2007-03-20

2007-03-20

Nghiem, Michael (Department: 2863)

Boring or penetrating the earth

With signaling, indicating, testing or measuring

Tool position direction or inclination measuring or...

C702S011000, C324S339000

Reexamination Certificate

active

10975966

ABSTRACT:
A method of drilling a well includes calculating and estimating the dip angle, wherein said estimated dip angle being based on offset well data, seismic data, core data, pressure data. Next, the method includes drilling a well with a logging while drilling tool using the estimated formation dip angle so that real time logging data is generated along with the drilling data and calculating an instantaneous formation dip angle. Next, the real time logging data is obtained and a target formation window is projected ahead of the well path that includes a top of formation and a bottom formation. The method includes monitoring the real time logging and drilling data and drilling the well through the target formation window. The method further includes changing the estimated instantaneous formation dip based on the obtained data and adjusting the target formation top window and the bottom formation window.

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