CN115324513A - Setting tool device of hydraulic packer and using method thereof - Google Patents
Setting tool device of hydraulic packer and using method thereof Download PDFInfo
- Publication number
- CN115324513A CN115324513A CN202211064026.3A CN202211064026A CN115324513A CN 115324513 A CN115324513 A CN 115324513A CN 202211064026 A CN202211064026 A CN 202211064026A CN 115324513 A CN115324513 A CN 115324513A
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- Prior art keywords
- mandrel
- packer
- pawl
- piston
- sealing
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 49
- 238000003825 pressing Methods 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 238000010008 shearing Methods 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000013011 mating Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
-
- 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
- E21B33/126—Packers; Plugs with fluid-pressure-operated elastic cup or skirt
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Pipe Accessories (AREA)
Abstract
The invention relates to a seat sealing tool device of a hydraulic packer and a using method thereof, wherein the seat sealing tool device comprises an upper joint, an upper mandrel, a pawl, a piston, a fixed piston, a sealing mandrel, an extension mandrel, a ball seat and a pressing plug, wherein the upper joint, the upper mandrel, the sealing mandrel, the extension mandrel and the pressing plug are sequentially in threaded connection, and the upper end of the upper joint is provided with an oil pipe or drill rod thread; the piston is connected with the upper mandrel through a pin; the pawl is connected with the key position meshed with the upper core shaft through the inside; the fixed piston is connected with the sealing mandrel through the upper mandrel and is fixed on the limiting step of the upper mandrel, and the upper mandrel, the pawl, the piston and the fixed piston are arranged inside the upper joint. The invention has the functions of feeding, setting the packer and releasing in two modes, can effectively reduce the probability that the setting ball enters the oil pipe to block the channel in the open-flow reverse drainage process, avoids the objects falling in the well, simultaneously improves the construction efficiency and increases the success rate of feeding, setting and releasing.
Description
Technical Field
The invention relates to the field of test oil well completion engineering, in particular to a setting tool device of a hydraulic packer and a using method thereof.
Background
In the process of oil testing and well completion, the packer is mostly adopted to seal and separate a target oil-gas layer, the produced liquid is controlled, the protective sleeve can be divided into a mechanical packer and a hydraulic packer according to the seat seal principle, the hydraulic packer is frequently adopted in the production of oil testing and well completion of an oil-gas well, most of the hydraulic packer needs to be matched with a ball seat, and the conditions of resistance under the condition, incapability of seat seal of the packer, incapability of releasing hands and the like can occur in the whole construction process.
Disclosure of Invention
The invention aims to solve the technical problem of providing a setting tool device of a hydraulic packer and a using method thereof, which can effectively reduce the probability that a setting ball enters an oil pipe to block a channel in the open-flow reverse drainage process, avoid underground falling objects, improve the construction efficiency and increase the success rate of feeding, setting and releasing.
The technical scheme adopted by the invention for solving the technical problems is as follows: constructing a seat sealing tool device of a hydraulic packer, which comprises an upper joint, an upper mandrel, a pawl, a piston, a fixed piston, a sealing mandrel, an extension mandrel, a ball seat and a pressing plug, wherein the upper joint, the upper mandrel, the sealing mandrel, the extension mandrel and the pressing plug are sequentially in threaded connection, and the upper end of the upper joint is provided with an oil pipe or drill rod thread; the piston is connected with the upper mandrel through a pin; the pawl is connected with the key position which is mutually meshed with the upper core shaft through the inner part; the fixed piston passes through the dabber and is connected between the sealed dabber, and fixed piston is fixed on the spacing step of dabber, inside upper clutch, pawl, piston, fixed piston were equipped with on the upper clutch diameter and pass the pressure hole, pass the pressure hole setting between two pistons, extend dabber connection sealed dabber and suppress the stopper, the ball seat sets up inside extending the dabber and suppressing the stopper position of being connected, and the ball seat passes through the pin and suppresses the stopper to be connected, suppress the stopper lower part and have the step of accepting the ball seat, extend and be equipped with the water conservancy diversion passageway in the middle of the dabber, the side of suppressing the stopper is equipped with the water conservancy diversion passageway.
According to the scheme, O-shaped sealing rings are arranged among the upper mandrel, the piston and the fixed piston to form sealing.
According to the scheme, the excircle of the lower end of the pawl is provided with a left-handed male thread matched with the internal thread at the upper end of the hydraulic packer, and the thread part is provided with a notch along the axial direction.
According to the scheme, the O-shaped sealing ring is arranged outside the sealing mandrel to form sealing with the hydraulic packer mandrel.
According to the scheme, an O-shaped sealing ring which forms a seal with the inner wall of the mandrel of the hydraulic packer is arranged outside the pressing plug, and an O-shaped sealing ring which forms a seal with the extension mandrel is arranged inside the pressing plug.
According to the scheme, an O-shaped sealing ring is arranged between the ball seat and the extension mandrel.
The invention also provides a use method of the setting tool device of the hydraulic packer, when the setting tool device is used for setting the packer, the method is that after the steel ball falls on the ball seat, high-pressure liquid pressure acts on the ball seat, the high-pressure liquid pressure enters a sealing space formed by the O-shaped sealing ring and the mandrel of the hydraulic packer through a flow guide channel on the extension mandrel, and then the sealing space is pressed by grading of the tool, wherein the liquid pressure needs to be smaller than the pressure released by the pawl, so that the packer is completely set;
the method for realizing releasing comprises the following steps:
the method comprises the following steps: after the packer is sealed, the pipe column is lifted up firstly, so that the setting tool bears a certain tensile load, then the pipe column is rotated rightwards, so that the setting tool is disconnected with the threaded connection part of the hydraulic packer through the pawl, and the releasing is realized; or
The second method comprises the following steps: after the packer is sealed, the packer is pressed from the inside of the packer tool, so that the piston cuts a shearing pin connected with the upper core shaft, the piston moves upwards, the thread part of the pawl loses support, the thread part of the pawl shrinks inwards due to an axial gap, the packer tool is lifted upwards, the thread connection part of the pawl and the hydraulic packer is disconnected, and the releasing is realized.
The principle of the invention is as follows:
when the hydraulic packer is used, the pawl and the corresponding thread of the hydraulic packer are rotated, and the O-shaped sealing ring and the mandrel of the hydraulic packer form sealing. After the pipe column enters the well, the weight of all tools below the setting tool is borne by the rotating and the threads of the pawl and the hydraulic packer, and the pawl cannot deform under stress because the threaded part of the pawl is internally supported by the piston, and the threads cannot fall off under stress. When the tool needs to be pressed down after being blocked in a well, the lower part of the upper joint is contacted with the tool body, so that the downward pressure is directly acted on the hydraulic packer body from the upper joint, and the excessive pressure cannot be generated on the pawl thread; when rotation is required, torque is supplied to the hydraulic packer body through key positions inside the pawls which are engaged with the upper mandrel.
The setting tool device of the hydraulic packer and the using method thereof have the following beneficial effects:
1. when the setting tool device is used, if the setting tool device is placed and is blocked, the setting tool can support larger lifting and pressing loads; if the ball seat fails and cannot be set, the setting tool can be continuously thrown into the setting tool to match the steel ball, and the packer is set in the setting tool; the self-contained releasing mode of the setting tool can also ensure that the internal parts of the tool cannot fall into a well after the tool is released.
2. The invention has the functions of feeding, setting the packer and releasing in two modes, can effectively reduce the probability that the setting ball enters the oil pipe to block the channel in the open-flow reverse drainage process, avoids the objects falling in the well, simultaneously improves the construction efficiency and increases the success rate of feeding, setting and releasing.
Drawings
The invention will be further described with reference to the following drawings and examples, in which:
FIG. 1 is a schematic diagram of the configuration of a setting tool assembly of the hydraulic packer of the present invention.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in FIG. 1, the setting tool of the hydraulic packer comprises an upper joint 1, an upper mandrel 3, a pawl 4, a piston 7, a fixed piston 9, a sealing mandrel 12, extension mandrels 15 and 16, a ball seat 22, a pressing plug 23, steel balls 17, O- shaped sealing rings 2, 6, 8, 10, 13, 14, 18, 19 and 20, a locking pin 11 and shear pins 5 and 21. Wherein, the upper joint 1, the upper mandrel 3, the sealing mandrel 12, the extension mandrels 15 and 16 and the pressing plug 23 are sequentially connected by screw threads, the screw threads are locked by a locking pin 11, and the sealing is respectively formed by O- shaped sealing rings 2, 13 and 20.
O- shaped sealing rings 6, 8 and 10 are arranged among the upper mandrel 3, the piston 7 and the fixed piston 9 to form a sealed space, a pressure transmission hole is formed in the position of the sealed space of the upper mandrel 3 to communicate the sealed space with the interior of the upper mandrel 3, and the piston 7 is connected with the upper mandrel 3 through a shearing pin 5; the fixed piston 9 is connected with the sealing mandrel 12 through the upper mandrel 3, so that the fixed piston 9 is fixed on the limiting step of the upper mandrel 3.
The pawl 4 is connected with the key position which is mutually meshed with the upper mandrel 3 through the inside, the excircle of the lower end of the pawl 4 is provided with a left-handed male thread which is matched with the internal thread at the upper end of the hydraulic packer, and the thread part is provided with a notch along the axial direction.
An O-ring 14 is arranged outside the sealing mandrel 12 to form a seal with the hydraulic packer mandrel.
The pressing plug 23 is externally provided with an O-shaped sealing ring 18 which forms a seal with the inner wall of the mandrel of the hydraulic packer, and internally provided with an O-shaped sealing ring 20 which forms a seal with the extension mandrel 16.
In the scheme, an O-shaped sealing ring 19 is arranged between the ball seat 22 and the extension mandrel 16, the ball seat 22 is connected with the pressing plug 23 through the shearing pin 21, and a flow guide channel is arranged in the middle of the extension mandrel 16.
In the above scheme, the lower part of the pressing plug 23 is provided with a step for receiving the ball seat 22, and the side surface of the pressing plug 23 is provided with a flow guide channel.
When the hydraulic packer is used, the pawl 4 and the corresponding thread of the hydraulic packer are rotated, and the O- shaped sealing rings 14 and 18 and the mandrel of the hydraulic packer form sealing. After the pipe column enters the well, the weight of all tools below the setting tool is borne by the pawl 4 and the threads of the hydraulic packer, and the pawl 4 cannot deform under stress because the threaded part of the pawl 4 is internally supported by the piston 7, and the threads cannot fall off under stress. When the tool needs to be pressed down after being blocked in a well, the lower part of the upper joint 1 is contacted with the tool body, so that the downward pressure is directly acted on the hydraulic packer body from the upper joint 1, and the too large pressure cannot be generated on the threads of the pawl 4; when rotation is required, torque is supplied to the hydraulic packer body through the key positions inside the pawls 4 which are engaged with the upper mandrel 3.
The invention relates to a setting method of a setting tool device of a hydraulic packer, which comprises the following steps:
when the packer is set, after the steel ball falls to the ball seat 22, high-pressure liquid pressure acts on the ball seat 22, enters a sealing space formed by the O-shaped sealing rings 14 and 18 and a mandrel of the hydraulic packer through a flow guide channel on the extension mandrel 16, and is pressed by a tool in a grading manner, wherein the liquid pressure needs to be smaller than the pressure released by the pawl 4, so that the packer is completely set.
The releasing method of the setting tool device of the hydraulic packer comprises the following steps:
the method comprises the following steps: after the packer seat is sealed, the pipe column is lifted up firstly, so that the seat sealing tool bears a certain tensile load, then the pipe column is rotated rightwards, so that the seat sealing tool is disconnected with the threaded connection part of the hydraulic packer through the pawl 4, and releasing is realized.
The second method comprises the following steps: after the packer is set, the packer is pressed from the inside of a setting tool (the inside of an oil pipe), so that the piston 7 cuts the shearing pin 5 connected with the upper mandrel 3, the piston 7 moves upwards, the thread part of the pawl 4 loses support, the thread part of the pawl 4 contracts inwards due to an axial gap, the setting tool is lifted upwards, and the thread connection part of the pawl 4 and the hydraulic packer is disconnected, so that the releasing is realized.
While the present invention has been described with reference to the particular illustrative embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalent arrangements, and equivalents thereof, which may be made by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A seat sealing tool device of a hydraulic packer is characterized by comprising an upper joint, an upper mandrel, a pawl, a piston, a fixed piston, a sealing mandrel, an extension mandrel, a ball seat and a pressing plug, wherein the upper joint, the upper mandrel, the sealing mandrel, the extension mandrel and the pressing plug are sequentially in threaded connection, and the upper end of the upper joint is provided with an oil pipe or drill rod thread; the piston is connected with the upper mandrel through a pin; the pawl is connected with the key position which is mutually meshed with the upper core shaft through the inner part; the fixed piston is connected between the upper mandrel and the sealing mandrel and fixed on a limiting step of the upper mandrel, the pawl, the piston and the fixed piston are arranged inside an upper connector in the radial direction of the upper mandrel, pressure transmission holes are formed in the positions between the two pistons, the upper mandrel is connected with the sealing mandrel and a pressing plug, the ball seat is arranged inside the connecting position of the extending mandrel and the pressing plug, the ball seat is connected with the pressing plug through a pin, the lower portion of the pressing plug is provided with a step for bearing the ball seat, a flow guide channel is arranged in the middle of the extending mandrel, and the side face of the pressing plug is provided with a flow guide channel.
2. The setting tool device of a hydraulic packer as claimed in claim 1, wherein O-rings are provided between the upper mandrel, the piston and the fixed piston to form a seal.
3. A setting tool device for a hydraulic packer as claimed in claim 1, wherein the pawl has left hand male threads on its lower end excircle for mating with the internal threads on the upper end of the hydraulic packer, and the threaded portion has an axial cut.
4. A setting tool for a hydraulic packer as claimed in claim 1, wherein the sealing mandrel has an O-ring external to the sealing mandrel to form a seal with the hydraulic packer mandrel.
5. A setting tool device for a hydraulic packer as claimed in claim 1, wherein the squeeze plug has an O-ring seal on the outside for sealing against the inner wall of the mandrel of the hydraulic packer and an O-ring seal on the inside for sealing against the extended mandrel.
6. A setting tool arrangement for a hydraulic packer as claimed in claim 1, wherein an O-ring seal is provided between the ball seat and the extension mandrel.
7. The use method of the setting tool device of the hydraulic packer as claimed in claim 1, wherein when the setting tool device is used for setting the packer, the method is that after the steel ball falls to the ball seat, high-pressure liquid pressure acts on the ball seat, enters the sealing space formed by the O-shaped sealing ring and the hydraulic packer mandrel through the flow guide channel on the extension mandrel, and then is pressed by grading of the tool, wherein the liquid pressure is smaller than the release pressure of the pawl, so that the packer is completely set;
the method for realizing releasing comprises the following steps:
the method comprises the following steps: after the packer is sealed, the tubular column is lifted upwards firstly to enable the setting tool to bear a certain tensile load, then the tubular column is rotated rightwards, the setting tool is disconnected with the threaded connection part of the hydraulic packer through the pawl, and releasing is achieved; or
The second method comprises the following steps: after the packer is sealed, the packer is pressed from the inside of the packer tool, so that the piston cuts a shearing pin connected with the upper core shaft, the piston moves upwards, the thread part of the pawl loses support, the thread part of the pawl shrinks inwards due to an axial gap, the packer tool is lifted upwards, the thread connection part of the pawl and the hydraulic packer is disconnected, and the releasing is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211064026.3A CN115324513A (en) | 2022-08-30 | 2022-08-30 | Setting tool device of hydraulic packer and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211064026.3A CN115324513A (en) | 2022-08-30 | 2022-08-30 | Setting tool device of hydraulic packer and using method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN115324513A true CN115324513A (en) | 2022-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211064026.3A Pending CN115324513A (en) | 2022-08-30 | 2022-08-30 | Setting tool device of hydraulic packer and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115324513A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291235A (en) * | 2013-06-08 | 2013-09-11 | 四机赛瓦石油钻采设备有限公司 | Tool for sending hydraulic packer into well |
| CN203347718U (en) * | 2013-06-08 | 2013-12-18 | 四机赛瓦石油钻采设备有限公司 | Running tool for hydraulic packer |
| CN205743795U (en) * | 2016-07-06 | 2016-11-30 | 荆州市赛瑞能源技术有限公司 | A kind of double acting is given up hydraulic setting tool |
| CN113374430A (en) * | 2021-07-07 | 2021-09-10 | 中石化石油工程技术服务有限公司 | Large-drift-diameter differential pressure type multifunctional releasing tool |
-
2022
- 2022-08-30 CN CN202211064026.3A patent/CN115324513A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291235A (en) * | 2013-06-08 | 2013-09-11 | 四机赛瓦石油钻采设备有限公司 | Tool for sending hydraulic packer into well |
| CN203347718U (en) * | 2013-06-08 | 2013-12-18 | 四机赛瓦石油钻采设备有限公司 | Running tool for hydraulic packer |
| CN205743795U (en) * | 2016-07-06 | 2016-11-30 | 荆州市赛瑞能源技术有限公司 | A kind of double acting is given up hydraulic setting tool |
| CN113374430A (en) * | 2021-07-07 | 2021-09-10 | 中石化石油工程技术服务有限公司 | Large-drift-diameter differential pressure type multifunctional releasing tool |
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