RU1786241C - Device for shutting up wells - Google Patents

Device for shutting up wells

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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
Application number
SU914921469A
Other languages
Russian (ru)
Inventor
Борис Михайлович Курочкин
Андрей Владимирович Кругликов
Original Assignee
Всесоюзный Научно-Исследовательский Институт Буровой Техники
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 Буровой Техники filed Critical Всесоюзный Научно-Исследовательский Институт Буровой Техники
Priority to SU914921469A priority Critical patent/RU1786241C/en
Application granted granted Critical
Publication of RU1786241C publication Critical patent/RU1786241C/en

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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)

Формула изобретени  Перекрыватель дл  скважин, выполненный в виде патрубка с профильными гофрами , отличающийс  тем, что, с целью повышени  надежности его работы в горизонтальных скважинах в качестве обсадной колонны-фильтра, патрубок в выступах и впадинах профильных гофр выполнен с отверсти ми , при этом отверсти  перекрыты пробками, растворимыми кислотой или щелочью .SUMMARY OF THE INVENTION A well shutter made in the form of a nozzle with profile corrugations, characterized in that, in order to increase the reliability of its operation in horizontal wells as a filter casing, the nozzle in the protrusions and depressions of the profile corrugations is made with holes, and holes blocked by plugs, soluble acid or alkali. фи г. 2.fi g. 2. 4 ФигЗ4 FIGS А -А1A-A1 ШигАShiga
SU914921469A 1991-03-27 1991-03-27 Device for shutting up wells RU1786241C (en)

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

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU914921469A RU1786241C (en) 1991-03-27 1991-03-27 Device for shutting up wells

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RU (1) RU1786241C (en)

Cited By (10)

* Cited by examiner, † Cited by third party
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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