CN205225172U - Washable well water injection packer - Google Patents
Washable well water injection packer Download PDFInfo
- Publication number
- CN205225172U CN205225172U CN201520973191.XU CN201520973191U CN205225172U CN 205225172 U CN205225172 U CN 205225172U CN 201520973191 U CN201520973191 U CN 201520973191U CN 205225172 U CN205225172 U CN 205225172U
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- CN
- China
- Prior art keywords
- central tube
- packing element
- piston
- socketed
- flushing valve
- 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.)
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- 238000002347 injection Methods 0.000 title claims abstract description 30
- 239000007924 injection Substances 0.000 title claims abstract description 30
- 235000020681 well water Nutrition 0.000 title abstract 4
- 239000002349 well water Substances 0.000 title abstract 4
- 238000012856 packing Methods 0.000 claims abstract description 67
- 238000007789 sealing Methods 0.000 claims abstract description 31
- 238000011010 flushing procedure Methods 0.000 claims description 41
- 238000005406 washing Methods 0.000 claims description 26
- 239000012530 fluid Substances 0.000 claims description 18
- 210000000078 claw Anatomy 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses a washable well water injection packer, this washable well water injection packer include the packing element, and this packing element includes: the rubber cylinder main body is sleeved on the central pipe; the anti-drop ring is arranged at one end, close to the upper joint of the rubber cylinder, of the rubber cylinder main body, and the diameter of the inner ring of the anti-drop ring is smaller than that of the outer ring of the rubber cylinder main body. Because the embodiment of the utility model provides a packing element in washable well water injection packer includes anticreep ring and packing element main part, the inner ring diameter of anticreep ring is less than the outer ring diameter of packing element main part, like this, anticreep ring can be when the packing element main part receives axial or longitudinal pressure, sealing element is outstanding towards oil jacket annular space or flow when stopping and restricting the packer to sit to improve and keep contact stress, avoid the phenomenon that the packing element can appear the packing element and drop under the circumstances that the annular space clearance is big, pressure differential is big, make the packer obtain good leakproofness.
Description
Technical field
The utility model relates to oil collecting equipment field, particularly relates to a kind of injection packer capable of being used for washing well.
Background technology
At present, along with oil field enters mid-later development phase, the down-hole casing corrosion and damage in oil field is serious, and cover becomes, cover damages, the oil well of casing collapse is increasing.The large diameter instrument conventional for casing deformation well is difficult to pass through, and adopt pony packer in oil recovery or the injecting process, because the gap between tool external diameter with casing inner diameter is larger, the packing element easily slippage under the effect of the pressure of being honored as a queen of rising, causes packer to lose efficacy.
Therefore, there is the technical problem that the easy slippage under the effect of the pressure of packing element causes packer to lose efficacy in prior art.
Utility model content
The utility model embodiment by providing a kind of injection packer capable of being used for washing well, in order to solve the packing element that exists in the prior art easily slippage technical problem that causes packer to lose efficacy under the effect of the pressure.
The utility model embodiment provides a kind of injection packer capable of being used for washing well, comprising:
Top connection;
Central tube, is connected with described top connection;
Well-flushing valve bonnet, is arranged at outside described central tube;
Spring, described spring is arranged at the annular space between described well-flushing valve bonnet and described central tube;
Flushing valve, to be arranged in described annular space and with described spring contact, described flushing valve can moving axially along described central tube;
Hold-down ring, to be arranged in described annular space and to contact with described flushing valve;
Flushing valve sealing ring, is arranged between described hold-down ring and described flushing valve;
Packing element top connection, is arranged on described central tube;
Exterior central tube, described exterior central tube to be socketed on described central tube and to contact with described packing element top connection;
Packing element, to be socketed on described exterior central tube and to be connected with described packing element top connection; Described packing element comprises: packing element main body, is socketed on described central tube; Anti-decylization, be arranged at described packing element main body one end near described packing element top connection, the annular diameters of anti-decylization is less than the outer annular diameter of packing element main body;
Spacer ring, to be socketed on described exterior central tube and to contact with described packing element;
Pressure cap, is socketed on described exterior central tube;
Divide claw, described point of claw is arranged between described exterior central tube and described pressure cap;
Lock tube, be arranged at described point between claw and described pressure cap, the pawl of described lock tube connects grappling with the pawl of point claw;
Separate big envelope, be fixed on described exterior central tube by supporting positive cover;
Fixed piston, is connected with described central tube;
Lower contact, is connected with described fixed piston.
Alternatively, described injection packer capable of being used for washing well also comprises:
First piston, to be socketed on described central tube and to be connected with described lock tube;
First fluid cylinder cover, to be socketed on described fixed piston and to be connected with described first piston;
Second piston, is socketed on to overlap on described fixed piston and with described first fluid cylinder and is connected;
Second fluid cylinder cover, to be socketed on described fixed piston and to be connected with described second piston, described lower contact respectively.
Alternatively, the position that described top connection contacts with described central tube is provided with the first sealing ring; The position that described well-flushing valve bonnet contacts with described central tube is provided with the second sealing ring; The position that described flushing valve contacts with described well-flushing valve bonnet is provided with the 3rd sealing ring and the 4th sealing ring; The position that described pressure cap contacts with described exterior central tube is provided with the 5th sealing ring; The position that described first piston contacts with described central tube is provided with the 6th sealing ring; Described first fluid cylinder overlaps the position contacted with described first piston and is provided with the 7th sealing ring.
Alternatively, described anti-decylization is metal ring, and the thickness of described metal ring is 3 ~ 5mm.
Alternatively, described fixed piston is connected with described central tube by screw thread.
One or more technical scheme in the utility model embodiment, has following technique effect or advantage at least:
Because the packing element in the injection packer capable of being used for washing well that the utility model embodiment provides comprises anti-decylization and packing element main body, the annular diameters of anti-decylization is less than the outer annular diameter of packing element main body, like this, anti-decylization can when packing element main body be subject to axis or longitudinal pressure, potted component outstanding or flowing towards oil sets annular space when prevention and restriction packer setting, thus improve and keep in touch stress, avoid there will be packing element is large at annular clearance, pressure reduction is large the phenomenon that packing element comes off, make packer obtain good sealing.
Accompanying drawing explanation
The first paragraph schematic diagram of the injection packer capable of being used for washing well that Fig. 1 provides for the utility model embodiment;
The second segment schematic diagram of the injection packer capable of being used for washing well that Fig. 2 provides for the utility model embodiment;
3rd section of schematic diagram of the injection packer capable of being used for washing well that Fig. 3 provides for the utility model embodiment;
4th section of schematic diagram of the injection packer capable of being used for washing well that Fig. 4 provides for the utility model embodiment;
5th section of schematic diagram of the injection packer capable of being used for washing well that Fig. 5 provides for the utility model embodiment;
The first paragraph schematic diagram of the packing element that Fig. 6 provides for the utility model embodiment.
Detailed description of the invention
The utility model embodiment by providing a kind of injection packer capable of being used for washing well, in order to solve the packing element that exists in the prior art easily slippage technical problem that causes packer to lose efficacy under the effect of the pressure.
Please refer to Fig. 1-Fig. 6, wherein, the stepwise schematic views of the injection packer capable of being used for washing well that Fig. 1-Fig. 5 provides for the utility model embodiment, the structural representation of the packing element that Fig. 6 provides for the utility model embodiment, as shown in figs 1 to 6, the injection packer capable of being used for washing well that the utility model embodiment provides comprises:
Top connection 1;
Central tube 6, is connected with top connection 1;
Flushing valve 11 covers 5, is arranged at outside central tube 6;
Spring 7, spring 7 is arranged at flushing valve 11 and covers annular space between 5 and central tube 6;
Flushing valve 11, to be arranged in annular space and to contact with spring 7, and flushing valve 11 can moving axially along central tube 6;
Hold-down ring 14, to be arranged in annular space and to contact with flushing valve 11;
Flushing valve 11 sealing ring, is arranged between hold-down ring 14 and flushing valve 11;
Packing element top connection 151, is arranged on central tube 6;
Exterior central tube 18, exterior central tube 18 to be socketed on central tube 6 and to contact with packing element top connection 151;
Packing element 16, to be socketed on exterior central tube 18 and to be connected with packing element top connection 151; Please also refer to Fig. 6, packing element 16 comprises: packing element main body 36, is socketed on central tube 6; Anti-decylization 35, be arranged at packing element main body 36 one end near packing element top connection 151, anti-decylization 35 is arranged at one end of packing element main body 36 and the annular diameters of anti-decylization 35 is less than the outer annular diameter of packing element main body 36, in the present embodiment, anti-decylization 35 together with packing element main body 36 through mold pressing and sulfidization molding;
Spacer ring 17, to be socketed on exterior central tube 18 and to contact with packing element 16;
Pressure cap 20, is socketed on exterior central tube 18;
Divide claw 22, a point claw 22 is arranged between exterior central tube 18 and pressure cap 20;
Lock tube 23, is arranged between point claw 22 and pressure cap 20, and the pawl of lock tube 23 connects grappling with the pawl of point claw 22;
Separate big envelope 24, be fixed on exterior central tube 18 by supporting positive cover 25;
Fixed piston 30, is connected with central tube 6;
Lower contact 34, is connected with fixed piston 30.
In the present embodiment, flushing valve 11 can move axially under hydraulic action, when flushing valve sealing ring 13 and packing element top connection 15 compress contact time, well-flushing pathway closure, when annular space hydraulic pressure is greater than pressure in tubing string, well-flushing passage is opened.
Please continue to refer to Fig. 2, as shown in Figure 2, injection packer capable of being used for washing well also comprises:
First piston 26, to be socketed on central tube 6 and to be connected with lock tube 23;
First fluid cylinder cover 29, to be socketed on fixed piston 30 and to be connected with first piston 26;
Second piston 31, to be socketed on fixed piston 30 and to overlap 29 with the first fluid cylinder and be connected;
Second fluid cylinder cover 32, to be socketed on fixed piston 30 and to be connected with the second piston 31, lower contact 34 respectively.In the present embodiment, please continue to refer to Fig. 5, injection packer capable of being used for washing well also comprises startup pin 33, first piston 26, first fluid cylinder cover the 29, second piston 31 and the second fluid cylinder cover 32 can be cut short and start pin 33 thus axially move under hydraulic action, complete and set, just repeated no more at this.
In specific implementation process, please also refer to Fig. 1-Fig. 5, the position that top connection 1 contacts with central tube 6 is provided with the first sealing ring 2; Flushing valve 11 covers 5 positions contacted with central tube 6 and is provided with the second sealing ring 4; Flushing valve 11 and flushing valve 11 cover 5 positions contacted and are provided with the 3rd sealing ring 9 and the 4th sealing ring 10; The position that pressure cap 20 contacts with exterior central tube 18 is provided with the 5th sealing ring 19; The position that first piston 26 contacts with central tube 6 is provided with the 6th sealing ring 27; The position that first fluid cylinder cover 29 contacts with first piston 26 is provided with the 7th sealing ring 28, like this, ensure that the sealing of the injection packer capable of being used for washing well that the utility model embodiment provides, certainly, by the introduction of the present embodiment, the technician belonging to this area according to actual conditions, can arrange sealing ring in other positions of injection packer capable of being used for washing well, to meet the demand of actual conditions, just repeat no more at this.
In specific implementation process, anti-decylization 35 is metal ring, and the thickness of metal ring is 3 ~ 5mm.
In specific implementation process, fixed piston 30 is connected with central tube 6 by screw thread.
Can find out, the annular diameters of anti-decylization is less than the outer annular diameter of packing element main body, like this, anti-decylization can when packing element main body be subject to axis or longitudinal pressure, potted component outstanding or flowing towards oil sets annular space when prevention and restriction packer setting, thus improve and keep in touch stress, avoid there will be packing element is large at annular clearance, pressure reduction is large the phenomenon that packing element comes off, make packer obtain good sealing.
In specific implementation process, the injection packer capable of being used for washing well that the utility model embodiment provides can be used in the following way:
Under enter: connect by tubular column structure, by the requirement of underground work operational procedure order go into the well.
Set: pressurizeed by oil pipe, be generally 3-4Mpa when pressure rises to certain numerical value, the second piston 31 is cut off and is started pin 33, continues pressurization first fluid cylinder cover 29, second fluid cylinder cover 32 and slides, compression packing element 16.Make it seal oil sets annular space, pinned by a point claw 22, when removing tubing pressure, packer accessory is still in compressive state, can not return simultaneously, and continue to keep seal compression state, the process that sets like this terminates.
Well-flushing: when needs well-flushing, flushing fluid is carried out from oil sets annular space, now due to differential pressure action, open the flushing valve 11 on packer top, flushing fluid passes packer by the annular space between central tube 6 and exterior central tube 18, enter oil pipe by lower curtate ball seat again and return well head, form well-flushing and lead to the object reaching well-flushing.
Deblocking: upper lifting pipe post, due to packing element 16 and sleeve pipe be adjacent to have frictional force, now central tube 6 is up, the up contraction of solution big envelope 24 is driven to divide claw 22, divide claw 22 can not pin packing element 16, under the effect of packing element 16 screen resilience, packer accessory is regained and is no longer adjacent to sleeve pipe, thus makes removing seal for packer.
One or more technical scheme in the utility model embodiment, at least tool has the following advantages or beneficial effect:
Because the packing element in the injection packer capable of being used for washing well that the utility model embodiment provides comprises anti-decylization and packing element main body, the annular diameters of anti-decylization is less than the outer annular diameter of packing element main body, like this, anti-decylization can when packing element main body be subject to axis or longitudinal pressure, potted component outstanding or flowing towards oil sets annular space when prevention and restriction packer setting, thus improve and keep in touch stress, avoid there will be packing element is large at annular clearance, pressure reduction is large the phenomenon that packing element comes off, make packer obtain good sealing.
Obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (5)
1. an injection packer capable of being used for washing well, is characterized in that, comprising:
Top connection;
Central tube, is connected with described top connection;
Well-flushing valve bonnet, is arranged at outside described central tube;
Spring, described spring is arranged at the annular space between described well-flushing valve bonnet and described central tube;
Flushing valve, to be arranged in described annular space and with described spring contact, described flushing valve can moving axially along described central tube;
Hold-down ring, to be arranged in described annular space and to contact with described flushing valve;
Flushing valve sealing ring, is arranged between described hold-down ring and described flushing valve;
Packing element top connection, is arranged on described central tube;
Exterior central tube, described exterior central tube to be socketed on described central tube and to contact with described packing element top connection;
Packing element, to be socketed on described exterior central tube and to be connected with described packing element top connection; Described packing element comprises: packing element main body, is socketed on described central tube; Anti-decylization, be arranged at described packing element main body one end near described packing element top connection, the annular diameters of anti-decylization is less than the outer annular diameter of packing element main body;
Spacer ring, to be socketed on described exterior central tube and to contact with described packing element;
Pressure cap, is socketed on described exterior central tube;
Divide claw, described point of claw is arranged between described exterior central tube and described pressure cap;
Lock tube, be arranged at described point between claw and described pressure cap, the pawl of described lock tube connects grappling with the pawl of point claw;
Separate big envelope, be fixed on described exterior central tube by supporting positive cover;
Fixed piston, is connected with described central tube;
Lower contact, is connected with described fixed piston.
2. injection packer capable of being used for washing well as claimed in claim 1, it is characterized in that, described injection packer capable of being used for washing well also comprises:
First piston, to be socketed on described central tube and to be connected with described lock tube;
First fluid cylinder cover, to be socketed on described fixed piston and to be connected with described first piston;
Second piston, is socketed on to overlap on described fixed piston and with described first fluid cylinder and is connected;
Second fluid cylinder cover, to be socketed on described fixed piston and to be connected with described second piston, described lower contact respectively.
3. injection packer capable of being used for washing well as claimed in claim 2, it is characterized in that, the position that described top connection contacts with described central tube is provided with the first sealing ring; The position that described well-flushing valve bonnet contacts with described central tube is provided with the second sealing ring; The position that described flushing valve contacts with described well-flushing valve bonnet is provided with the 3rd sealing ring and the 4th sealing ring; The position that described pressure cap contacts with described exterior central tube is provided with the 5th sealing ring; The position that described first piston contacts with described central tube is provided with the 6th sealing ring; Described first fluid cylinder overlaps the position contacted with described first piston and is provided with the 7th sealing ring.
4. injection packer capable of being used for washing well as claimed in claim 1, it is characterized in that, described anti-decylization is metal ring, and the thickness of described metal ring is 3 ~ 5mm.
5. injection packer capable of being used for washing well as claimed in claim 1, it is characterized in that, described fixed piston is connected with described central tube by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520973191.XU CN205225172U (en) | 2015-11-30 | 2015-11-30 | Washable well water injection packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520973191.XU CN205225172U (en) | 2015-11-30 | 2015-11-30 | Washable well water injection packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205225172U true CN205225172U (en) | 2016-05-11 |
Family
ID=55900246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520973191.XU Active CN205225172U (en) | 2015-11-30 | 2015-11-30 | Washable well water injection packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205225172U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593344A (en) * | 2016-12-26 | 2017-04-26 | 中国石油天然气股份有限公司 | Chemical deblocking compression fracturing packer |
| CN112709556A (en) * | 2019-10-24 | 2021-04-27 | 中国石油化工股份有限公司 | Rapid well completion pipe string for offshore oilfield water injection well and construction method |
-
2015
- 2015-11-30 CN CN201520973191.XU patent/CN205225172U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593344A (en) * | 2016-12-26 | 2017-04-26 | 中国石油天然气股份有限公司 | Chemical deblocking compression fracturing packer |
| CN112709556A (en) * | 2019-10-24 | 2021-04-27 | 中国石油化工股份有限公司 | Rapid well completion pipe string for offshore oilfield water injection well and construction method |
| CN112709556B (en) * | 2019-10-24 | 2022-12-06 | 中国石油化工股份有限公司 | Rapid well completion pipe string for offshore oilfield water injection well and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |