Boring or penetrating the earth – Processes – Boring curved or redirected bores
Patent
1993-03-17
1994-07-12
Britts, Ramon S.
Boring or penetrating the earth
Processes
Boring curved or redirected bores
E21B 700
Patent
active
053279840
ABSTRACT:
A method is provided, based on assigned drilling variables, for predicting the area of open region above a bed of cuttings resulting from drilling a high-angle well. The area of the bit used in drilling is compared with the area of the open region and drill pipe to determine a Hole-Cleaning Ratio. Occurrences of sticking of drill pipe or other drilling problems in prior-drilled wells are correlated with Hole Cleaning Ratio in those wells to determine a relationship for predicting risk of drilling problems in wells of interest. Risk factors so determined are used to modify conditions or equipment during drilling or to plan future wells.
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Rasi Marco
Sikirica Eugene A.
Britts Ramon S.
Exxon Production Research Company
Tsay Frank S.
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