CA2767197A1 - Downhole device - Google Patents
Downhole device Download PDFInfo
- Publication number
- CA2767197A1 CA2767197A1 CA2767197A CA2767197A CA2767197A1 CA 2767197 A1 CA2767197 A1 CA 2767197A1 CA 2767197 A CA2767197 A CA 2767197A CA 2767197 A CA2767197 A CA 2767197A CA 2767197 A1 CA2767197 A1 CA 2767197A1
- Authority
- CA
- Canada
- Prior art keywords
- well
- seal
- housing
- segments
- cavity
- Prior art date
- Legal status (The legal status 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 status listed.)
- Abandoned
Links
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims abstract description 8
- 230000003993 interaction Effects 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 abstract description 7
- 238000005553 drilling Methods 0.000 abstract description 3
- 238000011112 process operation Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
Landscapes
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
- Sealing Devices (AREA)
Abstract
The invention relates to a device for use in technical operations relating to well completion. The device acts as a sealing device by virtue of a seal (5). The seal (5) divides the well into an upper cavity (16) and a lower cavity (17). The seal (5) includes a collet (7) that comprises segments (8), a liner (10), springs (11) and a casing (6). The segments (8) are capable of separating upon interaction with the well equipment (drilling column (19)) and are provided with additional seals (9). The casing (6) is situated in the lower portion of the collet (7) and enables the movement of the segments (8) upon the separation thereof. The seal (5) is situated in a housing (1) that comprises a thread (2, 3). The housing (1) is secured on a roller bearing (4). The device further includes an adjustment insert (12) that is capable of interacting with the well equipment upon the installation thereof and of moving the same so as to open the channel of a hydraulic connection (13) between the well opening, the upper cavity, the lower cavity and the producing formation. This technical solution makes it possible to carry out any well completion operation, prevent the inflow of formation fluids and increase the yield of the well, well completion being carried out without the generation of overbalance on the formation.
Description
DOWNHOLE DEVICE
TECHNICAL FIELD
The invention pertains to the oil and gas industry and can be used in technical operations relating to well completion.
PRIOR ART
Known are the safety valves intended for leak-free shutoff of to the well bore during the oil and gas wells operation RU No. 2312203 C2, E21B34/06, 10.12.2007; RU No. 2311526 C2, E21B34/06, 27.11.2007; RU No. 2293839 C1, E21B34/06, 20.02.2007; RU No.
2234595 C1, E21B34/10, 20.08.2004; RU No. 2224087 C2, E211334/06,20.02.2004; RU No. 2172815 Cl, E211334/06,27.08.2001;
RU No. 2169829 Cl, E21B34/06, 27.06.2001; RU No. 2160357 C2, E2 11334/06, 10.12.2000; RU No. 2145024 Cl, E21B34/08, 27.01.2000;
RU No. 2112863 Cl, E21B34/06, 10.06.1998; RU No. 2107152 C1, E21B34/06, 20.03.1998; RU No. 2094593 Cl, E21B34/06, 27.10.1997;
RU No. 2021490 Cl, E21B34/06, 15.10.1994; RU No. 2011797 Cl, E21B34/06, 30.04.1994; RU No. 32183 U1, E21B34/06, 10.09.2003;
RU No. 25527 Ul, E21B34/06, 10.10.2002; RU No. 22174 U1, E21B34/06, 10.03.2002.
The known downhole shutoff devices are characterized by the significant reduction of flow channel diameter compared to the producing well diameter.
TECHNICAL FIELD
The invention pertains to the oil and gas industry and can be used in technical operations relating to well completion.
PRIOR ART
Known are the safety valves intended for leak-free shutoff of to the well bore during the oil and gas wells operation RU No. 2312203 C2, E21B34/06, 10.12.2007; RU No. 2311526 C2, E21B34/06, 27.11.2007; RU No. 2293839 C1, E21B34/06, 20.02.2007; RU No.
2234595 C1, E21B34/10, 20.08.2004; RU No. 2224087 C2, E211334/06,20.02.2004; RU No. 2172815 Cl, E211334/06,27.08.2001;
RU No. 2169829 Cl, E21B34/06, 27.06.2001; RU No. 2160357 C2, E2 11334/06, 10.12.2000; RU No. 2145024 Cl, E21B34/08, 27.01.2000;
RU No. 2112863 Cl, E21B34/06, 10.06.1998; RU No. 2107152 C1, E21B34/06, 20.03.1998; RU No. 2094593 Cl, E21B34/06, 27.10.1997;
RU No. 2021490 Cl, E21B34/06, 15.10.1994; RU No. 2011797 Cl, E21B34/06, 30.04.1994; RU No. 32183 U1, E21B34/06, 10.09.2003;
RU No. 25527 Ul, E21B34/06, 10.10.2002; RU No. 22174 U1, E21B34/06, 10.03.2002.
The known downhole shutoff devices are characterized by the significant reduction of flow channel diameter compared to the producing well diameter.
Also known is a preventer containing the housing, sealing elements equipped with hydraulic drives RU No. 2304693 C2, E21B33/06, 20.08.2007; RU No. 2125643 C1, E21B33/06, 27.01.1999;
RU No. 37762 U1, E21B34/06, 10.05.2004.
Known is a rotating preventer containing the housing, rotating shaft with a sealing element, rotating assembly and a chevron seal RU
No. 2027847 Cl, E21B33/06, 27.01.1995; RU No. 76961 U1, E21B33/06, 10.10.2008.
Known is the rotating universal hydraulic preventer containing a to housing with a cavity and a central opening, a cover with an opening, bearings, a shell, a sealing element located in the shell RU No. 2208126 C2, E21B33/06, 10.07.2003; RU No. 2013519 Cl, E21B33/06, 30.05.1994; RU No. 45770 U1, E21B33/06, 27.05.2005.
The known rotating preventers, which are installed on the well opening, have overall dimensions significantly exceeding the well diameter; they do not completely overlap the cross-section.
Known is a rotating preventer containing a housing, a bearing assembly, a shaft rotating in the bearing assembly and a sealing device connected with the well equipment, RU No. 2341643 C1, E21B33/06, 20.12.2008.
This technical solution is accepted as the "closest analog" of the present invention.
The sealing device of the "closest analog" preventer is made in the form of a spacer ring with a groove on the inner surface and is located on the coupling connecting the drill string and the kelly stem.
The groove in the spacer ring is connected with the inner cavity of the coupling. The drill string together with the coupling is lowered into the well and the drill pump is switched on; at that, the sealing device, under action of drill fluid pressure, is expanded and retained against the shaft, thus creating a reliable sealing of the annulus.
However, the sealing device of the "closest analog" preventer seals the well opening during drilling operations and such sealing is possible only under action of drill fluid, which limits execution of other process operations.
The "closest analog" preventer belongs to devices that seal the to well opening during drilling.
Summary of the invention The invention solves the problem of expanding execution of process operations, provide conditions for any operations on well completion without loss of flow channel diameter by more than the normative value, prevent inflow of formation fluids and increase the well productivity.
According to the invention this problem is solved by using a borehole device containing a housing; a bearing assembly; and a sealing device connected with the borehole equipment.
The device acts as a sealing device by using a seal.
RU No. 37762 U1, E21B34/06, 10.05.2004.
Known is a rotating preventer containing the housing, rotating shaft with a sealing element, rotating assembly and a chevron seal RU
No. 2027847 Cl, E21B33/06, 27.01.1995; RU No. 76961 U1, E21B33/06, 10.10.2008.
Known is the rotating universal hydraulic preventer containing a to housing with a cavity and a central opening, a cover with an opening, bearings, a shell, a sealing element located in the shell RU No. 2208126 C2, E21B33/06, 10.07.2003; RU No. 2013519 Cl, E21B33/06, 30.05.1994; RU No. 45770 U1, E21B33/06, 27.05.2005.
The known rotating preventers, which are installed on the well opening, have overall dimensions significantly exceeding the well diameter; they do not completely overlap the cross-section.
Known is a rotating preventer containing a housing, a bearing assembly, a shaft rotating in the bearing assembly and a sealing device connected with the well equipment, RU No. 2341643 C1, E21B33/06, 20.12.2008.
This technical solution is accepted as the "closest analog" of the present invention.
The sealing device of the "closest analog" preventer is made in the form of a spacer ring with a groove on the inner surface and is located on the coupling connecting the drill string and the kelly stem.
The groove in the spacer ring is connected with the inner cavity of the coupling. The drill string together with the coupling is lowered into the well and the drill pump is switched on; at that, the sealing device, under action of drill fluid pressure, is expanded and retained against the shaft, thus creating a reliable sealing of the annulus.
However, the sealing device of the "closest analog" preventer seals the well opening during drilling operations and such sealing is possible only under action of drill fluid, which limits execution of other process operations.
The "closest analog" preventer belongs to devices that seal the to well opening during drilling.
Summary of the invention The invention solves the problem of expanding execution of process operations, provide conditions for any operations on well completion without loss of flow channel diameter by more than the normative value, prevent inflow of formation fluids and increase the well productivity.
According to the invention this problem is solved by using a borehole device containing a housing; a bearing assembly; and a sealing device connected with the borehole equipment.
The device acts as a sealing device by using a seal.
The seal separates the well into the upper and lower cavity with the presence of hydraulic connection between the well opening and the upper cavity and between the lower cavity and the producing formation respectively.
The seal has a collet with segments in the lower part and is made capable of separating at interaction with the well equipment, is equipped with additional seals on lateral surfaces, a liner on external surfaces, springs and casing located in the lower part and providing arrangement of segments during their separation.
The seal is located in the housing provided with the upper thread and fastened in the beating assembly.
The device further includes an adjustment insert that is capable of interacting with the well equipment upon the installation thereof and of moving same so as to open the channel of a hydraulic connection is between the well opening, the upper cavity, the lower cavity and the producing formation.
The invention is characterized by a number of optional features, namely:
- bearing assembly contains an oil-filled sealed bearing;
- liner is made of a strong flexible material;
- lower thread is additionally made on the housing.
The applicant has not identified any sources of information which contain data on technical solutions identical to the device described herein.
Thus, in the applicant's opinion, the invention meets the 5 "novelty" (N) criterion.
The immediate technical result is implementation of technical operations on well completion without creation of overbalance on the productive deposits by the washer fluid column, with the help of the suggested device made as a sealing device by means of the seal io separating the well into the upper and lower cavities, containing the collet with segments in the lower part capable of separating at interaction with the well equipment and located in the housing fastened in the bearing assembly.
This technical result does not come from the known properties, is which, in the applicant's opinion, means that the technical solution applied for meets the the "inventive step" (IS) criterion.
Implementation of the technical solution applied for is confirmed by the research, development and testing of experimental batches; in the downhole device the use is made of parts and assemblies which are 20 widely used in the oil and gas producing industry; therefore, in the applicant's opinion, it meets the "industrial applicability" (IA) criterion.
Brief description of the drawings Further on the technical solution applied for shall be explained by description of an example of its implementation with references to the attached drawings, where in Fig. 1 - Downhole device, general view;
in Fig. 2 - Downhole device, section;
in Fig. 3 - Collet segments, section;
in Fig. 4 - Downhole device in setting position, section;
in Fig. 5 - Well in operating position, schematically;
in Fig. 6 - Section A-A on fig. 5;
io in Fig. 7 - Well with downhole device, schematically.
Best enbodiment of the invention The downhole device contains:
Housing - 1, upper thread (on housing 1) - 2, lower thread (on housing 1) - 3, Oil-filled sealed bearing - 4.
Seal (in housing 1) - 5.
Encasing (of housing 1) - 6.
Collet (of seal 5) - 7, segments (of collet 7) - 8.
The seal has a collet with segments in the lower part and is made capable of separating at interaction with the well equipment, is equipped with additional seals on lateral surfaces, a liner on external surfaces, springs and casing located in the lower part and providing arrangement of segments during their separation.
The seal is located in the housing provided with the upper thread and fastened in the beating assembly.
The device further includes an adjustment insert that is capable of interacting with the well equipment upon the installation thereof and of moving same so as to open the channel of a hydraulic connection is between the well opening, the upper cavity, the lower cavity and the producing formation.
The invention is characterized by a number of optional features, namely:
- bearing assembly contains an oil-filled sealed bearing;
- liner is made of a strong flexible material;
- lower thread is additionally made on the housing.
The applicant has not identified any sources of information which contain data on technical solutions identical to the device described herein.
Thus, in the applicant's opinion, the invention meets the 5 "novelty" (N) criterion.
The immediate technical result is implementation of technical operations on well completion without creation of overbalance on the productive deposits by the washer fluid column, with the help of the suggested device made as a sealing device by means of the seal io separating the well into the upper and lower cavities, containing the collet with segments in the lower part capable of separating at interaction with the well equipment and located in the housing fastened in the bearing assembly.
This technical result does not come from the known properties, is which, in the applicant's opinion, means that the technical solution applied for meets the the "inventive step" (IS) criterion.
Implementation of the technical solution applied for is confirmed by the research, development and testing of experimental batches; in the downhole device the use is made of parts and assemblies which are 20 widely used in the oil and gas producing industry; therefore, in the applicant's opinion, it meets the "industrial applicability" (IA) criterion.
Brief description of the drawings Further on the technical solution applied for shall be explained by description of an example of its implementation with references to the attached drawings, where in Fig. 1 - Downhole device, general view;
in Fig. 2 - Downhole device, section;
in Fig. 3 - Collet segments, section;
in Fig. 4 - Downhole device in setting position, section;
in Fig. 5 - Well in operating position, schematically;
in Fig. 6 - Section A-A on fig. 5;
io in Fig. 7 - Well with downhole device, schematically.
Best enbodiment of the invention The downhole device contains:
Housing - 1, upper thread (on housing 1) - 2, lower thread (on housing 1) - 3, Oil-filled sealed bearing - 4.
Seal (in housing 1) - 5.
Encasing (of housing 1) - 6.
Collet (of seal 5) - 7, segments (of collet 7) - 8.
additional seals (on lateral surfaces of segments 8) - 9, liner (on external surface of collet 7) - 10, springs (of collet 7) - 11.
Locating insert - 12, channels of hydraulic connection - 13.
Drill-through cover - 14.
Installation and operation of the device is provided by:
Well - 15, upper cavity (well 15) - 16, lower cavity (well 15) - 17.
Casing string - 18.
Drill string - 19, drillbit - 20.
The borehole device contains a housing (1), bearing assembly (4) and seal (5).
The device acts as a sealing device by using a seal (5).
The seal (5) separates the well into the upper (16) and the lower (17) cavity with the presence of hydraulic connection between the well opening and the upper cavity and between the lower cavity and the producing formation respectively.
The seal (5) contains a funnel-shaped collet (7). The collet (7) in the encasing (6) in the lower part contains segments (8) closely fitting to each other, capable of separating and equipped with the additional seals (9) on the lateral surfaces. The collet (7) contains a liner (10) on its external surfaces. The liner (10) is made of a strong flexible material.
The collet (7) contains springs (11). The encasing (6) is located in the lower part of the collet (7) providing arrangement of segments (8) during their separation. The space between the seal (5) and the encasing (6) is filled with grease.
The seal (5) is located in the housing (1) provided with the upper thread (2) and fastened in the beating assembly. The bearing assembly contains the oil-filled sealed bearing (4). The lower thread (3) is made on the housing (1) for installation of the device between the pipes of the casing string (18), if necessary.
The device further includes an adjustment insert (12). The io adjustment insert (12) is capable of interacting with the well equipment during its installation, for example, with the drill string (19), and of moving the same so as to open the channel of a hydraulic connection (13) between the well opening, the upper cavity, the lower cavity and the producing formation.
The device is additionally equipped with the drill-through cover (14). The drill-through cover (14) is made of easily drillable material, for example, A16.
Process operations on well completion are executed using the device as follows.
The locating insert (12) in installed in the seal (5). The space between the seal (5) and the encasing (6) is filled with grease to prevent crushing of the encasing (6) under external pressure during lowering of the device into the well (15).
Locating insert - 12, channels of hydraulic connection - 13.
Drill-through cover - 14.
Installation and operation of the device is provided by:
Well - 15, upper cavity (well 15) - 16, lower cavity (well 15) - 17.
Casing string - 18.
Drill string - 19, drillbit - 20.
The borehole device contains a housing (1), bearing assembly (4) and seal (5).
The device acts as a sealing device by using a seal (5).
The seal (5) separates the well into the upper (16) and the lower (17) cavity with the presence of hydraulic connection between the well opening and the upper cavity and between the lower cavity and the producing formation respectively.
The seal (5) contains a funnel-shaped collet (7). The collet (7) in the encasing (6) in the lower part contains segments (8) closely fitting to each other, capable of separating and equipped with the additional seals (9) on the lateral surfaces. The collet (7) contains a liner (10) on its external surfaces. The liner (10) is made of a strong flexible material.
The collet (7) contains springs (11). The encasing (6) is located in the lower part of the collet (7) providing arrangement of segments (8) during their separation. The space between the seal (5) and the encasing (6) is filled with grease.
The seal (5) is located in the housing (1) provided with the upper thread (2) and fastened in the beating assembly. The bearing assembly contains the oil-filled sealed bearing (4). The lower thread (3) is made on the housing (1) for installation of the device between the pipes of the casing string (18), if necessary.
The device further includes an adjustment insert (12). The io adjustment insert (12) is capable of interacting with the well equipment during its installation, for example, with the drill string (19), and of moving the same so as to open the channel of a hydraulic connection (13) between the well opening, the upper cavity, the lower cavity and the producing formation.
The device is additionally equipped with the drill-through cover (14). The drill-through cover (14) is made of easily drillable material, for example, A16.
Process operations on well completion are executed using the device as follows.
The locating insert (12) in installed in the seal (5). The space between the seal (5) and the encasing (6) is filled with grease to prevent crushing of the encasing (6) under external pressure during lowering of the device into the well (15).
The housing (1) of the device is connected by means of the upper thread (2) and the lower thread (3) with the pipe of the string (18) located below. The casing string (18) together with the device is lowered into the well.
Process operations on the well (15) fastening are then performed.
The drill string (19) is lowered down to the device and the locating insert (12) is pushed out by subsequent pressing, thus breaking the drill-through cover (14).
Segments (8) of the collet (7) are separated and the channels of io the hydraulic connection (13) between the well opening, the upper cavity, the lower cavity and the producing formation open. The encasing (6) provides the guaranteed space for location of the separated segments (8).
The drill string (19) is lowered down to the productive deposits.
After execution of process operations on the well (15) deepening according to the project the drill string (19) is removed from the well (15).
After the drillbit (20) comes out of the seal (5) the collet (7) takes up the "closed" position under action of the own potential energy, as well as under action of springs (11) and liner (10), thus shutting off the channels of the hydraulic connection (13) and separating the upper (16) and the lower (17) cavities of the well (15).
If it is necessary to continue operations on the well (15) deepening, the drill string (19) is lowered in the similar way through the device.
If other process operations are executed, for example, lowering 5 of the tail pipe (not shown) or other equipment, the device supports their installation and operation in the required modes.
Completion of the device with the housing, the bearing assembly and the seal makes it possible to lower it together with the casing string, to locate it inside the well and to perform any process operations on the 1o well completion without any diameter loss.
Installation of the device in the well over the productive deposits, which operates on the "normally closed" principle and is opened by external actuation to let the well equipment pass through, is a necessary step to complete the well, if development of the productive deposits is carried out without creation of the overbalance.
Availability of the collet in the seal, which provides interaction with the well equipment and opening of the channel of the hydraulic connection between the well opening, the upper cavity, the lower cavity and the producing formation prevents inflow of formation fluids, when necessary.
Industrial applicability The suggested downhole device can be used during execution of the process operations on the well completion without loss of flow channel diameter by more than the normative value, during prevention of the formation fluids inflow and during application of the known parts and assemblies manufactured industrially and widely used in the oil and gas producing industry, and the research, development and testing of the experimental batches confirme, in the applicant's opinion, its compliance with the "industrial applicability" (IA) criterion.
Process operations on the well (15) fastening are then performed.
The drill string (19) is lowered down to the device and the locating insert (12) is pushed out by subsequent pressing, thus breaking the drill-through cover (14).
Segments (8) of the collet (7) are separated and the channels of io the hydraulic connection (13) between the well opening, the upper cavity, the lower cavity and the producing formation open. The encasing (6) provides the guaranteed space for location of the separated segments (8).
The drill string (19) is lowered down to the productive deposits.
After execution of process operations on the well (15) deepening according to the project the drill string (19) is removed from the well (15).
After the drillbit (20) comes out of the seal (5) the collet (7) takes up the "closed" position under action of the own potential energy, as well as under action of springs (11) and liner (10), thus shutting off the channels of the hydraulic connection (13) and separating the upper (16) and the lower (17) cavities of the well (15).
If it is necessary to continue operations on the well (15) deepening, the drill string (19) is lowered in the similar way through the device.
If other process operations are executed, for example, lowering 5 of the tail pipe (not shown) or other equipment, the device supports their installation and operation in the required modes.
Completion of the device with the housing, the bearing assembly and the seal makes it possible to lower it together with the casing string, to locate it inside the well and to perform any process operations on the 1o well completion without any diameter loss.
Installation of the device in the well over the productive deposits, which operates on the "normally closed" principle and is opened by external actuation to let the well equipment pass through, is a necessary step to complete the well, if development of the productive deposits is carried out without creation of the overbalance.
Availability of the collet in the seal, which provides interaction with the well equipment and opening of the channel of the hydraulic connection between the well opening, the upper cavity, the lower cavity and the producing formation prevents inflow of formation fluids, when necessary.
Industrial applicability The suggested downhole device can be used during execution of the process operations on the well completion without loss of flow channel diameter by more than the normative value, during prevention of the formation fluids inflow and during application of the known parts and assemblies manufactured industrially and widely used in the oil and gas producing industry, and the research, development and testing of the experimental batches confirme, in the applicant's opinion, its compliance with the "industrial applicability" (IA) criterion.
Claims (4)
1. Downhole device comprising: a housing; a bearing assembly;
and a seal connected with the well equipment, where the sealing feature of the device is provided by means of a seal separating the well into the upper and lower cavities, with the presence of hydraulic connection between the well opening and the upper cavity and between the lower cavity and the producing formation, correspondingly, containing the collet with segments in the lower part capable of separating at interaction with the well equipment and provided with the additional seals on the lateral surfaces, with the liner on the external surfaces, springs and encasing located in the lower part and providing arrangement of segments at their separation, and located in the housing having the upper thread and fastened in the bearing assembly; at that, the device is additionally equipped with the locating insert capable of interacting with the well equipment during its installation and of moving the same so as to open the channel of a hydraulic connection between the well opening, the upper cavity, the lower cavity and the producing formation.
and a seal connected with the well equipment, where the sealing feature of the device is provided by means of a seal separating the well into the upper and lower cavities, with the presence of hydraulic connection between the well opening and the upper cavity and between the lower cavity and the producing formation, correspondingly, containing the collet with segments in the lower part capable of separating at interaction with the well equipment and provided with the additional seals on the lateral surfaces, with the liner on the external surfaces, springs and encasing located in the lower part and providing arrangement of segments at their separation, and located in the housing having the upper thread and fastened in the bearing assembly; at that, the device is additionally equipped with the locating insert capable of interacting with the well equipment during its installation and of moving the same so as to open the channel of a hydraulic connection between the well opening, the upper cavity, the lower cavity and the producing formation.
2. The device as per Claim 1, where the bearing assembly comprises an oil-filled sealed bearing.
3. The device as per Claim 1, where the liner is made of a strong flexible material.
4. The device as per Claim, where a lower thread is additionally provided on the housing.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2009126485 | 2009-07-10 | ||
| RU2009126485 | 2009-07-10 | ||
| PCT/RU2010/000294 WO2011005144A1 (en) | 2009-07-10 | 2010-06-07 | Downhole device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2767197A1 true CA2767197A1 (en) | 2011-01-13 |
Family
ID=43429390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2767197A Abandoned CA2767197A1 (en) | 2009-07-10 | 2010-06-07 | Downhole device |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US20120132429A1 (en) |
| EP (1) | EP2453104A1 (en) |
| KR (1) | KR20120048622A (en) |
| CN (1) | CN102482929B (en) |
| BR (1) | BR112012000580A2 (en) |
| CA (1) | CA2767197A1 (en) |
| CL (1) | CL2012000067A1 (en) |
| EA (1) | EA020796B1 (en) |
| IN (1) | IN2012DN00916A (en) |
| MX (1) | MX2012000004A (en) |
| PE (1) | PE20121203A1 (en) |
| UA (1) | UA105797C2 (en) |
| WO (1) | WO2011005144A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9470055B2 (en) | 2012-12-20 | 2016-10-18 | Schlumberger Technology Corporation | System and method for providing oscillation downhole |
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| SU874993A1 (en) * | 1979-06-15 | 1981-10-23 | Особое Конструкторское Бюро По Проектированию Нефтегазодобывающих Машин И Оборудования Министерства Химического И Нефтяного Машиностроения | Deep-wellclosure valve |
| RU2027847C1 (en) | 1990-12-06 | 1995-01-27 | Северо-Кавказский научно-исследовательский институт природных газов | Rotating preventer |
| RU2013519C1 (en) | 1991-03-28 | 1994-05-30 | Павел Леонтьевич Пшеничный | Universal preventer |
| RU2021490C1 (en) | 1991-05-05 | 1994-10-15 | Особое конструкторское бюро по проектированию нефтегазодобывающих машин и оборудования | Subsurface safety valve |
| RU2011797C1 (en) | 1992-01-27 | 1994-04-30 | Владимир Федорович Францев | Well cut-off valve |
| RU2160357C2 (en) | 1994-06-02 | 2000-12-10 | Фирма "Саратовгазприборавтоматика" | Valve-shutoff device |
| RU2094593C1 (en) | 1995-03-07 | 1997-10-27 | Татарский научно-исследовательский и проектный институт нефти | Cut-off valve |
| RU2112863C1 (en) | 1996-01-09 | 1998-06-10 | Владимир Федорович Францев | Shutoff valve in well |
| RU2107152C1 (en) | 1996-01-09 | 1998-03-20 | Владимир Федорович Францев | Subsurface isolating valve |
| RU2125643C1 (en) | 1997-04-04 | 1999-01-27 | Военизированная противофонтанная часть "Лiкво" | Preventer |
| RU2145024C1 (en) | 1998-01-09 | 2000-01-27 | Кузаев Григорий Иванович | Cut-off valve |
| RU2169829C1 (en) | 1999-11-16 | 2001-06-27 | Открытое акционерное общество Научно-производственное объединение Роснефть-Термнефть | Multipurpose in-well valve-shut-off device |
| RU2172815C1 (en) | 2000-03-14 | 2001-08-27 | Закрытое акционерное общество завод "Измерон" | Cutoff valve |
| RU2208126C2 (en) | 2001-01-29 | 2003-07-10 | Федеральное государственное унитарное предприятие "Воронежский механический завод" | Rotating universal hydraulic blowout preventer |
| RU22174U1 (en) | 2001-03-11 | 2002-03-10 | Кузаев Григорий Иванович | VALVE-SHUT-OFF |
| RU2224087C2 (en) | 2002-04-22 | 2004-02-20 | Открытое акционерное общество "Акционерная нефтяная компания "Башнефть" | Gate-type well valve |
| RU25527U1 (en) | 2002-05-17 | 2002-10-10 | Закрытое акционерное общество завод "Измерон" | WELL VALVE DEVICE |
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| US7836946B2 (en) * | 2002-10-31 | 2010-11-23 | Weatherford/Lamb, Inc. | Rotating control head radial seal protection and leak detection systems |
| RU2234595C1 (en) | 2002-12-30 | 2004-08-20 | Общество с ограниченной ответственностью "Подземгазпром" | Borehole shutoff valve |
| RU32183U1 (en) | 2003-01-30 | 2003-09-10 | Закрытое акционерное общество завод "Измерон" | VALVE DEVICE FOR PIPE DRILLING RING |
| RU2250354C2 (en) * | 2003-05-05 | 2005-04-20 | Открытое акционерное общество "Научно-производственное объединение "Бурение" | Stationary through cutting valve |
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| RU45770U1 (en) | 2004-12-02 | 2005-05-27 | ОАО НПО "Буровая техника" | UNIVERSAL ROTATING CONVERTER |
| RU2311526C2 (en) | 2005-09-08 | 2007-11-27 | Открытое акционерное общество "Научно-производственное объединение "Бурение" | Shutoff valve |
| RU2293839C1 (en) | 2005-09-21 | 2007-02-20 | Владимир Васильевич Торопынин | Cutoff valve |
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| RU2312203C2 (en) | 2006-02-03 | 2007-12-10 | Илья Вадимович Неудачин | Shutoff valve |
| RU2341643C1 (en) | 2007-03-19 | 2008-12-20 | Федеральное государственное образовательное учреждение высшего профессионального образования "Сибирский Федеральный университет", (СФУ) | Rotating preventer |
| CN201165861Y (en) * | 2008-01-25 | 2008-12-17 | 毛万里 | Oil field downhole fluid control valve and opening-closing tools |
| RU76961U1 (en) | 2008-05-12 | 2008-10-10 | Федеральное государственное образовательное учреждение высшего профессионального образования Сибирский федеральный университет (СФУ) | ROTATING CONVECTOR |
-
2010
- 2010-06-07 PE PE2012000014A patent/PE20121203A1/en not_active Application Discontinuation
- 2010-06-07 WO PCT/RU2010/000294 patent/WO2011005144A1/en active Application Filing
- 2010-06-07 EA EA201200108A patent/EA020796B1/en not_active IP Right Cessation
- 2010-06-07 KR KR1020127003645A patent/KR20120048622A/en not_active Application Discontinuation
- 2010-06-07 CA CA2767197A patent/CA2767197A1/en not_active Abandoned
- 2010-06-07 EP EP10797365A patent/EP2453104A1/en not_active Withdrawn
- 2010-06-07 MX MX2012000004A patent/MX2012000004A/en unknown
- 2010-06-07 CN CN201080030926.5A patent/CN102482929B/en not_active Expired - Fee Related
- 2010-06-07 BR BR112012000580A patent/BR112012000580A2/en not_active IP Right Cessation
- 2010-06-07 UA UAA201201386A patent/UA105797C2/en unknown
- 2010-06-07 US US13/382,999 patent/US20120132429A1/en not_active Abandoned
-
2012
- 2012-01-10 CL CL2012000067A patent/CL2012000067A1/en unknown
- 2012-02-01 IN IN916DEN2012 patent/IN2012DN00916A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EA201200108A1 (en) | 2012-06-29 |
| MX2012000004A (en) | 2012-10-03 |
| IN2012DN00916A (en) | 2015-04-03 |
| PE20121203A1 (en) | 2012-09-28 |
| CN102482929B (en) | 2014-04-02 |
| EA020796B1 (en) | 2015-01-30 |
| CN102482929A (en) | 2012-05-30 |
| UA105797C2 (en) | 2014-06-25 |
| KR20120048622A (en) | 2012-05-15 |
| US20120132429A1 (en) | 2012-05-31 |
| CL2012000067A1 (en) | 2013-02-08 |
| WO2011005144A1 (en) | 2011-01-13 |
| EP2453104A1 (en) | 2012-05-16 |
| BR112012000580A2 (en) | 2019-09-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |
Effective date: 20160608 |