SU599045A1 - Device for correcting crumpled casing columns - Google Patents

Device for correcting crumpled casing columns

Info

Publication number
SU599045A1
SU599045A1 SU772443390A SU2443390A SU599045A1 SU 599045 A1 SU599045 A1 SU 599045A1 SU 772443390 A SU772443390 A SU 772443390A SU 2443390 A SU2443390 A SU 2443390A SU 599045 A1 SU599045 A1 SU 599045A1
Authority
SU
USSR - Soviet Union
Prior art keywords
device
tip
crumpled
correcting
casing
Prior art date
Application number
SU772443390A
Other languages
Russian (ru)
Inventor
Василий Павлович Панков
Валентин Васильевич Еременко
Марк Лазаревич Кисельман
Original Assignee
Всесоюзный научно-исследовательский институт по креплению скважин и буровым растворам
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Всесоюзный научно-исследовательский институт по креплению скважин и буровым растворам filed Critical Всесоюзный научно-исследовательский институт по креплению скважин и буровым растворам
Priority to SU772443390A priority Critical patent/SU599045A1/en
Application granted granted Critical
Publication of SU599045A1 publication Critical patent/SU599045A1/en

Links

Description

The device is connected by a nipple thread with a drill string and lowered into the well. When reaching that section of the casing string, the additional tip 3 rests on the inclined plane of the see column and, turning in the hinge, is deflected towards the opposite wall.

Since the turning in the hinge passes freely, the transverse bending moment in the body of the device does not occur. The risk of overloading and the occurrence of destructive voltages is sharply reduced, and consequently, the reliability of operation of the device is increased.

In addition, splitting of the tip 3 between the washed walls of the column occurs. The expansion forces arising in the plane A-A do not have a tendency to push through or break through the walls of the column, since the walls of the tip move almost parallel to the walls of the cm of the column. This eliminates the possibility of spontaneous release of the tip and the entire device beyond the column.

After the casing is straightened by the lower part, the tip freely enters the upper part having a diameter smaller than the diameter of the internal section of the straightened section of the column.

The device through the smuggled area is allowed repeatedly until the pulling and landing as the device moves up or down disappears. After that, the device is raised (worn on the surface.

Breaking straightening devices, jamming their destroyed parts

in the well, as well as forcing the pipe of the straightened column, is connected with the necessity of spending tens, and sometimes hundreds of thousands of rubles, on re-drilling a second well section of wells located below sm. Improving the reliability of devices and eliminating the forcing of the walls of the CLEARED column will make the straightening operation of casing strings more successful and will save money spent on performing operations to straighten casing strings and re-drilling boreholes. 15

Claims (2)

1. A device for straightening see-through casing strings comprising a body connected at one end to a drill pipe and the other to
with a tip, characterized in that, in order to increase the reliability of the device by preventing the casing string from collapsing, it is provided with an additional tip connected by means of a hinge with the main tip.
2. The device according to claim 1, about the t h and 0 that the hinge
made in the form of two spheres interconnected by means of a rod.
Sources of information taken
into account in the examination:
1. Materials of the All-Union confession of young specialists in the oil industry, Kuibyshev, December, 1968, VNIIENG, M., 1970,
with. 40
2. U.S. Patent 3,528,498, Cl. 166-55,
SU772443390A 1977-01-18 1977-01-18 Device for correcting crumpled casing columns SU599045A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU772443390A SU599045A1 (en) 1977-01-18 1977-01-18 Device for correcting crumpled casing columns

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU772443390A SU599045A1 (en) 1977-01-18 1977-01-18 Device for correcting crumpled casing columns

Publications (1)

Publication Number Publication Date
SU599045A1 true SU599045A1 (en) 1978-03-25

Family

ID=20691978

Family Applications (1)

Application Number Title Priority Date Filing Date
SU772443390A SU599045A1 (en) 1977-01-18 1977-01-18 Device for correcting crumpled casing columns

Country Status (1)

Country Link
SU (1) SU599045A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990005831A1 (en) * 1988-11-22 1990-05-31 Tatarsky Gosudarstvenny Nauchno-Issledovatelsky I Proektny Institut Neftyanoi Promyshlennosti Pipe roller-expanding device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990005831A1 (en) * 1988-11-22 1990-05-31 Tatarsky Gosudarstvenny Nauchno-Issledovatelsky I Proektny Institut Neftyanoi Promyshlennosti Pipe roller-expanding device
US5014779A (en) * 1988-11-22 1991-05-14 Meling Konstantin V Device for expanding pipes

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