RU1786241C - Device for shutting up wells - Google Patents
Device for shutting up wellsInfo
- Publication number
- RU1786241C RU1786241C SU914921469A SU4921469A RU1786241C RU 1786241 C RU1786241 C RU 1786241C SU 914921469 A SU914921469 A SU 914921469A SU 4921469 A SU4921469 A SU 4921469A RU 1786241 C RU1786241 C RU 1786241C
- Authority
- RU
- Russia
- Prior art keywords
- plugs
- holes
- wells
- pipe
- expansion
- Prior art date
Links
Abstract
Использование: при креплении горизонтальных скважин в продуктивных пластах . Обеспечивает повышение надежности креплени при его использовании в качестве обсадной колонны- фильтра. Увеличена деформационна способность перекрыва- тел при одновременном снижении усили расширени и обеспечении равномерного расширени . Сущность изобретени : пере- крыватель выполнен в виде патрубка с профильными гофрами. В выступах и впадинах профильных гофр патрубок выполнен с отверсти ми. Отверсти перекрыты пробками . Пробки выполнены из материала, растворимого кислотой или щелочью. 4 ил.Usage: when attaching horizontal wells in productive formations. Provides improved mounting reliability when used as a filter casing. The deformation ability of the overlappers is increased while reducing the expansion force and ensuring uniform expansion. SUMMARY OF THE INVENTION: The interrupter is made in the form of a pipe with profile corrugations. In the protrusions and depressions of the profile corrugations, the pipe is made with holes. The holes are blocked by plugs. The plugs are made of a material soluble in acid or alkali. 4 ill.
Description
Изобретение относитс к бурению скважин , а именно к креплению стенок скважин в продуктивных пластах,The invention relates to the drilling of wells, namely, the fastening of the walls of wells in productive formations,
Известно устройство дл креплени горизонтальных скважин в виде потайных колонн с фильтрами или просто потайных колонн, заранее рассверленных. Затрубное пространство при этом заполн етс гравием .A device for fastening horizontal wells in the form of countersunk columns with filters or simply countersunk columns pre-drilled is known. The annulus is then filled with gravel.
Недостатком этого устройства вл етс то, что оно не имеет непосредственного контакта со стенками скважины. Поэтому горна порода частично разрушаетс , происходит заиливание гравийного сло .A disadvantage of this device is that it does not have direct contact with the walls of the well. Therefore, the rock is partially destroyed; siltation of the gravel layer occurs.
Известен профильный перекрыватель, устанавливаемый против продуктивного пласта, затем его перфорируют. Его недостаточна деформационна способность, неполное расширение, несимметричное расположение в стволе скважины. Применение перфорации после расширени перекрывател приводит к растрескиванию металлической стенки трубы. Кроме того, при перфорации перфоратор располагаетс на нижней стенке обсаженного колонной ствола , поэтому прострел нижней и верхней стенок происходит неравномерно.Known profile cutter installed against the reservoir, then it is perforated. Its insufficient deformation ability, incomplete expansion, asymmetric location in the wellbore. The use of perforation after expansion of the overlap leads to cracking of the metal wall of the pipe. In addition, during perforation, the perforator is located on the lower wall of the cased shaft, so that the cross of the lower and upper walls is uneven.
Цель - повышение надежности работы перекрывател в виде патрубка с продольными гофрами в горизонтальных скважинах в качестве обсадной колонны-фильтра за счет возможности увеличени ее деформационной способности при одновременном снижении усилий расширени и обеспечении равномерного расширени .The goal is to increase the reliability of the overlap in the form of a nozzle with longitudinal corrugations in horizontal wells as a filter casing due to the possibility of increasing its deformation ability while reducing expansion efforts and ensuring uniform expansion.
Цель достигаетс тем, что патрубок в выступах и впадинах профильных гофр выполнен с отверсти ми, перекрытыми пробками , растворимыми кислотой или щелочью.The goal is achieved in that the pipe in the protrusions and depressions of the profile corrugations is made with holes covered by plugs, soluble acid or alkali.
Изобретение по сн етс фиг. 1-4.The invention is illustrated in FIG. 1-4.
VI 00 ON hO NVI 00 ON hO N
Перекрыватель спускают на бурильной колонне 1. Может спускатьс несколько патрубков 2, соединенных муфтами 3. Патрубки имеют отверсти 4, перекрытые заглушками 5.The overlap is lowered on the drill string 1. Several nozzles 2 connected by couplings 3 may be lowered. The nozzles have openings 4 covered by plugs 5.
На фиг. 2 показано сечение патрубка до его расширени под давлением.In FIG. Figure 2 shows a cross-section of a nozzle until it expands under pressure.
На фиг. 3 и 4 показаны патрубки после расширени и растворени пробок 5 кислотой.In FIG. Figures 3 and 4 show the nozzles after expansion and dissolution of the plugs 5 with acid.
Перекрыватель может использоватьс в горизонтальных и наклонных скважинах при креплении продуктивных пластов.The overburden can be used in horizontal and deviated wells when securing productive formations.
00
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU914921469A RU1786241C (en) | 1991-03-27 | 1991-03-27 | Device for shutting up wells |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU914921469A RU1786241C (en) | 1991-03-27 | 1991-03-27 | Device for shutting up wells |
Publications (1)
Publication Number | Publication Date |
---|---|
RU1786241C true RU1786241C (en) | 1993-01-07 |
Family
ID=21566335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU914921469A RU1786241C (en) | 1991-03-27 | 1991-03-27 | Device for shutting up wells |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU1786241C (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6631759B2 (en) | 1999-02-26 | 2003-10-14 | Shell Oil Company | Apparatus for radially expanding a tubular member |
US6631760B2 (en) | 1998-12-07 | 2003-10-14 | Shell Oil Company | Tie back liner for a well system |
US6634431B2 (en) | 1998-11-16 | 2003-10-21 | Robert Lance Cook | Isolation of subterranean zones |
US7665532B2 (en) | 1998-12-07 | 2010-02-23 | Shell Oil Company | Pipeline |
US7740076B2 (en) | 2002-04-12 | 2010-06-22 | Enventure Global Technology, L.L.C. | Protective sleeve for threaded connections for expandable liner hanger |
US7739917B2 (en) | 2002-09-20 | 2010-06-22 | Enventure Global Technology, Llc | Pipe formability evaluation for expandable tubulars |
US7757774B2 (en) | 2004-10-12 | 2010-07-20 | Weatherford/Lamb, Inc. | Method of completing a well |
US7775290B2 (en) | 2003-04-17 | 2010-08-17 | Enventure Global Technology, Llc | Apparatus for radially expanding and plastically deforming a tubular member |
US7886831B2 (en) | 2003-01-22 | 2011-02-15 | Enventure Global Technology, L.L.C. | Apparatus for radially expanding and plastically deforming a tubular member |
US7918284B2 (en) | 2002-04-15 | 2011-04-05 | Enventure Global Technology, L.L.C. | Protective sleeve for threaded connections for expandable liner hanger |
-
1991
- 1991-03-27 RU SU914921469A patent/RU1786241C/en active
Non-Patent Citations (1)
Title |
---|
Журнал Нефть, газ и нефтехими за рубежом, № 5, 1990, М.: Недра, с. 18-24. Авторское свидетельство СССР № 1639120, кл. Е 21 В 43/08, 1990. * |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6634431B2 (en) | 1998-11-16 | 2003-10-21 | Robert Lance Cook | Isolation of subterranean zones |
US6631760B2 (en) | 1998-12-07 | 2003-10-14 | Shell Oil Company | Tie back liner for a well system |
US7665532B2 (en) | 1998-12-07 | 2010-02-23 | Shell Oil Company | Pipeline |
US6631759B2 (en) | 1999-02-26 | 2003-10-14 | Shell Oil Company | Apparatus for radially expanding a tubular member |
US6684947B2 (en) | 1999-02-26 | 2004-02-03 | Shell Oil Company | Apparatus for radially expanding a tubular member |
US7740076B2 (en) | 2002-04-12 | 2010-06-22 | Enventure Global Technology, L.L.C. | Protective sleeve for threaded connections for expandable liner hanger |
US7918284B2 (en) | 2002-04-15 | 2011-04-05 | Enventure Global Technology, L.L.C. | Protective sleeve for threaded connections for expandable liner hanger |
US7739917B2 (en) | 2002-09-20 | 2010-06-22 | Enventure Global Technology, Llc | Pipe formability evaluation for expandable tubulars |
US7886831B2 (en) | 2003-01-22 | 2011-02-15 | Enventure Global Technology, L.L.C. | Apparatus for radially expanding and plastically deforming a tubular member |
US7775290B2 (en) | 2003-04-17 | 2010-08-17 | Enventure Global Technology, Llc | Apparatus for radially expanding and plastically deforming a tubular member |
US7757774B2 (en) | 2004-10-12 | 2010-07-20 | Weatherford/Lamb, Inc. | Method of completing a well |
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