CN108005608A - Two-way mechanical hydraulic packer - Google Patents
Two-way mechanical hydraulic packer Download PDFInfo
- Publication number
- CN108005608A CN108005608A CN201610929676.8A CN201610929676A CN108005608A CN 108005608 A CN108005608 A CN 108005608A CN 201610929676 A CN201610929676 A CN 201610929676A CN 108005608 A CN108005608 A CN 108005608A
- Authority
- CN
- China
- Prior art keywords
- central tube
- anchor
- outer barrel
- slips
- cone
- 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.)
- Pending
Links
- 241000935974 Paralichthys dentatus Species 0.000 claims abstract description 22
- 241000239290 Araneae Species 0.000 claims abstract description 12
- 238000012856 packing Methods 0.000 claims abstract description 11
- 125000006850 spacer group Chemical group 0.000 claims abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000002457 bidirectional effect Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- XQCFHQBGMWUEMY-ZPUQHVIOSA-N Nitrovin Chemical compound C=1C=C([N+]([O-])=O)OC=1\C=C\C(=NNC(=N)N)\C=C\C1=CC=C([N+]([O-])=O)O1 XQCFHQBGMWUEMY-ZPUQHVIOSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000012360 testing method Methods 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
- E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
- E21B33/1295—Packers; Plugs with mechanical slips for hooking into the casing actuated by fluid pressure
Landscapes
- 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)
- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to oilfield drilling and production technology field, more particularly to a kind of two-way mechanical hydraulic packer, including top connection, central tube, anchor body, upper anchor fluke, lower anchor fluke, outer nut, packing element, spacer ring, outer barrel, nut, cone, slips, slip spider, piston and lower contact；The top connection is threadedly coupled with the top of the central tube, the anchor body is fixed on the top of the central tube, the upper anchor fluke and lower anchor fluke are separately mounted on the anchor body, the anchor body is threadedly coupled with the top of the outer barrel, the packing element and spacer ring are sequentially sleeved on the outer barrel, the cone lower part coordinates with the slips, the lower part of the slips coordinates with the slip spider, the top of the piston is connected with the lower thread of the outer barrel, and the lower contact is fixed on the lower part of the central tube.The design of slips and water conservancy anchor, makes the packer to bear bidirectional high-pressure poor.
Description
Technical field
The present invention relates to oilfield drilling and production technology field, more particularly to a kind of two-way mechanical hydraulic packer.
Background technology
There is leakage phenomena in oil well casing casing caused by the reasons such as cementing quality, connection screw thread, ground movement, corrosion,
Unfavorable factor is brought to oil well measure construction and influences crude output.Once leakage situation occurs in the non-payzone of oil well, implementing to repair
Leakage points are must determine before multiple, now verify that the method for casing leakage point generally uses packer, and oil is closed with upper bit in payzone
Annular space is covered, casing is verified by casing pressuring method.But existing a few money two-way mechanical hydraulic packers are being implemented to test
Cover in work progress, have unfavorable factor in varying degrees, cause construction to have some setbacks, it is impossible to accurately judge that leak position is asked
Topic.
Such as：Slip-type two-way mechanical hydraulic packer：Because slip-type two-way mechanical hydraulic packer by above putting puts pipe
Column, conversion slips track back seat card form fulcrum, and using discharging, tubing string suspending weight compression packing element is setting, but such a two-way mechanical hydraulic pressure
Packer is not suitable for verifying the position construction that leakage points are shallower and deeper away from well head, when shallow-layer is constructed, because tubing string suspending weight deficiency is made
Into setting bad, because slips contrail is difficult when deep layer is constructed, cause setting difficulty.Particularly in horizontal well and high angle hole
The middle above problem is especially prominent.In addition, if existing packer excessive be easy to cause of overpressure after setting comes off.
The content of the invention
It is an object of the invention to overcome the shortcomings of above-mentioned technology, and a kind of two-way mechanical hydraulic packer is provided, be applicable in
It is setting in shallow-layer, it is setting easy, prevent from coming off.
The present invention to achieve the above object, using following technical scheme：A kind of two-way mechanical hydraulic packer, its feature exist
In：Including top connection, central tube, anchor body, upper anchor fluke, lower anchor fluke, outer nut, packing element, spacer ring, outer barrel, nut, cone, card
Watt, slip spider, piston and lower contact；The top connection is threadedly coupled with the top of the central tube, and the anchor body is fixed
On the top of the central tube, the upper anchor fluke and lower anchor fluke are separately mounted on the anchor body, the upper anchor fluke and are casted anchor
Gap is left between pawl and the central tube, the outer nut is connected with the lower thread of the anchor body, the anchor body with
The top of the outer barrel is threadedly coupled, and the packing element and spacer ring are sequentially sleeved on the outer barrel, the nut and the cone
Top is threadedly coupled, and the cone is slidably matched with the outer barrel, and the cone lower part coordinates with the slips, the slips
Lower part coordinates with the slip spider, and the top of the piston is connected with the lower thread of the outer barrel, the piston and the card
Space is left between watt seat, which connects with the inside of central tube, and the lower contact is fixed on the lower part of the central tube.
The beneficial effects of the invention are as follows:The design of slips and water conservancy anchor, makes the packer to bear bidirectional high-pressure poor.Work as envelope
Precalculated position is lowered into every device, is suppressed.Liquid-driving slip spider moves up, and slips struts, while promotes cone to move up, cone compresses
Packing element, is realized setting.Pressure can be born at this time.When strata pressure raises, packer upper end is sealed.Pressure is from outer barrel crack
Into strutting anchor fluke can bear to push.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the working state schematic representation for holding upper pressure of the present invention；
Fig. 3 is the working state schematic representation for holding low pressure of the present invention.
Embodiment
Below in conjunction with the accompanying drawings and the preferred embodiment embodiment that the present invention will be described in detail.As shown in Figure 1-Figure 3, one
Kind two-way mechanical hydraulic packer, including top connection 1, central tube 2, anchor body 3, upper anchor fluke 4, lower anchor fluke 5, outer nut 6, packing element
7th, spacer ring 8, outer barrel 9, nut 10, cone 11, slips 12, slip spider 13, piston 14 and lower contact 15；The top connection and institute
The top for stating central tube is threadedly coupled, and the anchor body is fixed on the top of the central tube, the upper anchor fluke and lower anchor fluke point
Gap An Zhuan not be left between the upper anchor fluke and lower anchor fluke and the central tube on the anchor body, gap is used to bear
Low pressure uses, and the outer nut is connected with the lower thread of the anchor body, the top of the anchor body and the outer barrel
It is threadedly coupled, the packing element and spacer ring are sequentially sleeved on the outer barrel, and the nut is threadedly coupled with the top of the cone, institute
Cone is stated to be slidably matched with the outer barrel, the cone lower part and the slips coordinate, that is, are in contact, the lower part of the slips with
The slip spider coordinates, that is, is in contact, and the top of the piston is connected with the lower thread of the outer barrel, the piston with it is described
Space is left between slip spider, which connects with the inside of central tube, and the lower contact is fixed on the lower part of the central tube.
The design of slips and water conservancy anchor, makes the packer to bear bidirectional high-pressure poor.When packer is lowered into precalculated position,
Suppress.Liquid-driving slip spider moves up, and slips struts, while promotes cone to move up, and cone compresses packing element, is realized setting.At this time
It can bear pressure.When strata pressure raises, packer upper end is sealed.Pressure enters from outer barrel crack, and strutting anchor fluke can be with
Bear to push.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (1)
- A kind of 1. two-way mechanical hydraulic packer, it is characterised in that：Including top connection, central tube, anchor body, upper anchor fluke, cast anchor Pawl, outer nut, packing element, spacer ring, outer barrel, nut, cone, slips, slip spider, piston and lower contact；The top connection and institute The top for stating central tube is threadedly coupled, and the anchor body is fixed on the top of the central tube, the upper anchor fluke and lower anchor fluke point Gap An Zhuan not be left between the upper anchor fluke and lower anchor fluke and the central tube on the anchor body, the outer nut with The lower thread connection of the anchor body, the anchor body is threadedly coupled with the top of the outer barrel, the packing element and spacer ring according to Secondary to be sleeved on the outer barrel, the nut is threadedly coupled with the top of the cone, and the cone is slidably matched with the outer barrel, The cone lower part coordinates with the slips, and the lower part of the slips coordinates with the slip spider, the top of the piston and institute The lower thread connection of outer barrel is stated, space is left between the piston and the slip spider, the inside of the space and central tube connects Logical, the lower contact is fixed on the lower part of the central tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610929676.8A CN108005608A (en) | 2016-10-31 | 2016-10-31 | Two-way mechanical hydraulic packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610929676.8A CN108005608A (en) | 2016-10-31 | 2016-10-31 | Two-way mechanical hydraulic packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108005608A true CN108005608A (en) | 2018-05-08 |
Family
ID=62047791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610929676.8A Pending CN108005608A (en) | 2016-10-31 | 2016-10-31 | Two-way mechanical hydraulic packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108005608A (en) |
-
2016
- 2016-10-31 CN CN201610929676.8A patent/CN108005608A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180508 |