RU97107748A - METHOD FOR STABILIZING DIRECTION OF WELLS - Google Patents
METHOD FOR STABILIZING DIRECTION OF WELLSInfo
- Publication number
- RU97107748A RU97107748A RU97107748/03A RU97107748A RU97107748A RU 97107748 A RU97107748 A RU 97107748A RU 97107748/03 A RU97107748/03 A RU 97107748/03A RU 97107748 A RU97107748 A RU 97107748A RU 97107748 A RU97107748 A RU 97107748A
- Authority
- RU
- Russia
- Prior art keywords
- core
- point
- pipe
- contact
- core set
- Prior art date
Links
- 230000000087 stabilizing Effects 0.000 title claims 2
- 238000005553 drilling Methods 0.000 claims 2
- 230000000007 visual effect Effects 0.000 claims 2
- 238000005452 bending Methods 0.000 claims 1
Claims (1)
а корректировку параметров колонкового набора осуществляют деформацией изгиба колонковой трубы в точке ее прогиба в месте контакта со стенкой скважины в противоположную сторону от места контакта на величину
где Lб.в. - длина полуволны изгиба бурильных труб над колонковым набором, м;
fб.в. - полуразность диаметров бурильных труб и скважины, м,
fп - полуразность диаметров скважин и переходника колонкового набора, м;
E•Iк.н., E•Iб.в. - соответственно жесткость поперечного сечения колонкового набора и бурильных труб, даН•м2
Lк.н.- длина колонкового набора, м.A method of stabilizing the direction of the wellbore, including the descent into the well of a core set consisting of a core, core pipe and adapter, drilling with coring, extracting it to the surface in the core set, visual determination of the contact between the core pipe and the wall of the well during drilling and adjusting the parameters core set, characterized in that after visual determination of the contact point of the core pipe with the well wall, the deflection point of the core pipe at the point of contact with wellbore wall according to the formula
and the correction of the parameters of the core set is carried out by bending the core pipe at the point of its deflection at the point of contact with the wall of the well in the opposite direction from the point of contact by
where L b.v. - the half-wave length of the bend of the drill pipe over the core set, m;
f b.v. - half the diameters of the drill pipe and borehole, m,
f p - the half-difference of the diameters of the wells and the adapter core set, m;
E • I Ph.D. , E • I b.v. - respectively, the rigidity of the cross section of the core set and drill pipe, daN • m 2
L Ph.D. - the length of the column set, m
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU97107748A RU2124619C1 (en) | 1997-05-06 | 1997-05-06 | Method for stabilizing direction of bore-hole |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU97107748A RU2124619C1 (en) | 1997-05-06 | 1997-05-06 | Method for stabilizing direction of bore-hole |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2124619C1 RU2124619C1 (en) | 1999-01-10 |
RU97107748A true RU97107748A (en) | 1999-04-27 |
Family
ID=20192875
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU97107748A RU2124619C1 (en) | 1997-05-06 | 1997-05-06 | Method for stabilizing direction of bore-hole |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU2124619C1 (en) |
-
1997
- 1997-05-06 RU RU97107748A patent/RU2124619C1/en not_active IP Right Cessation
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