CN205025417U - Hydraulic cylinder water injection packer - Google Patents
Hydraulic cylinder water injection packer Download PDFInfo
- Publication number
- CN205025417U CN205025417U CN201520668040.3U CN201520668040U CN205025417U CN 205025417 U CN205025417 U CN 205025417U CN 201520668040 U CN201520668040 U CN 201520668040U CN 205025417 U CN205025417 U CN 205025417U
- Authority
- CN
- China
- Prior art keywords
- piston
- fluid cylinder
- central tube
- fixed piston
- water injection
- 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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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 239000007924 injection Substances 0.000 title claims abstract description 40
- 238000002347 injection Methods 0.000 title claims abstract description 40
- 238000007789 sealing Methods 0.000 claims abstract description 43
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 239000012530 fluid Substances 0.000 claims description 62
- 238000012856 packing Methods 0.000 claims description 12
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 235000020681 well water Nutrition 0.000 description 2
- 239000002349 well water Substances 0.000 description 2
- UGQMRVRMYYASKQ-KQYNXXCUSA-N Inosine Chemical compound O[C@@H]1[C@H](O)[C@@H](CO)O[C@H]1N1C2=NC=NC(O)=C2N=C1 UGQMRVRMYYASKQ-KQYNXXCUSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model provides a hydraulic cylinder water injection packer, include: the upper end of the central pipe is connected with an upper joint; the outer sleeve is sleeved on the central pipe, and the upper end of the outer sleeve is in threaded connection with the upper joint; the sealing mechanism is provided with an outer central tube, the outer side of the outer central tube is sleeved with a sealing part, and the upper end of the sealing part is closely attached to the lower end face of the outer sleeve; the sealing pushing mechanism comprises a movable piston, a fixed piston and an upper liquid cylinder, wherein the movable piston and the fixed piston are sleeved on a central pipe, the upper liquid cylinder is sleeved on the outer sides of the movable piston and the fixed piston and is in threaded connection with the movable piston, the upper end of the movable piston is connected to the lower end of the outer central pipe, the upper end face of the movable piston is in contact with the lower end of a sealing part, the fixed piston is in threaded connection with the central pipe, the outer side face of the fixed piston is closely attached to the inner side face of the upper liquid cylinder, an annular space is formed between the upper end face of the fixed piston and the lower end face of the. The utility model is suitable for a water injection sleeve becomes the well and carries out the water injection, and the construction is simple and convenient reliable during the operation.
Description
Technical field
The utility model relates to a kind of oil field well water filling seating and sealing unit, particularly relates to a kind of fluid cylinder water injection packer being applicable to casing deformation well.
Background technology
In oil field operation, affect because casing deformation well becomes undergauge by cover, conventional waterflooding instrument cannot play cover to become below section, and therefore such well can only adopt system note mode or stop note mode.Prior art is not overlapped mainly for sleeve pipe the well damaged and be out of shape and is implemented water filling, what use is all conventional waterflooding instrument, conventional water filling cannot play below cover change section to carry out reasonable water filling, along with water injection time extends, such oil-water well interlayer contradiction becomes increasingly conspicuous, and injects water individual layer and advances by leaps and bounds seriously, affect flood effectiveness, the corresponding oil well of part even water logging closing well, therefore, solves such well subdivision of reservoir water filling difficult problem extremely urgent.
In view of this, the present inventor, by means of relevant design for many years and manufacturing experience, proposes a kind of fluid cylinder water injection packer, can realize casing deformation well water filling, and simple to operate.
Utility model content
The purpose of this utility model is to provide a kind of fluid cylinder water injection packer, and during operation, easy construction is reliable, is particularly useful for casing deformation well and carries out water filling.
For this reason, the utility model proposes a kind of fluid cylinder water injection packer, it comprises:
Central tube, upper end is connected with top connection by external screw thread;
Outer tube, is set on described central tube, and described outer sleeve upper is by internal thread and described top connection bolt;
Sealing mechanism, be provided with an exterior central tube that can be slidably located on described central tube, the outside of described exterior central tube is arranged with sealing, and the upper end of described sealing is mutually closely connected with the lower surface of described outer tube;
Sealing pushing mechanism, include mobile piston, fixed piston and upper fluid cylinder, described mobile piston and fixed piston from top to bottom spacer sleeve are located on described central tube, described upper fluid cylinder is then set in the outside of described mobile piston and fixed piston, itself and described mobile piston bolt, the upper end of described mobile piston is connected to the lower end of described exterior central tube by internal thread, its upper surface contacts with the lower end of described sealing, described fixed piston and described central tube are spirally connected fixing, its lateral surface is mutually closely connected with the medial surface of described upper fluid cylinder, annular space is formed between the upper surface of described fixed piston and the lower surface of described mobile piston, described central tube is provided with the liquid injection hole be connected with described annular space.
Fluid cylinder water injection packer as above, wherein, the upper end of described fixed piston is socketed on the lower end of described central tube, and described upper fluid cylinder is then set in outside the epimere of described fixed piston.
Fluid cylinder water injection packer as above, wherein, separately be provided with one second sealing pushing part, described second sealing pushing part includes one second mobile piston, one second fixed piston and once fluid cylinder, the upper end of described second mobile piston and described second fixed piston is set in outside the hypomere of described fixed piston successively, described second fixed piston and described fixed piston are spirally connected fixing, described lower fluid cylinder is the closely connected outside being set in described second mobile piston and the second fixed piston then, the lateral surface bolt of its upper end and described second mobile piston, the lateral surface of its lower end and described second fixed piston is connected and fixed by shear pin, wherein, the upper surface of described second mobile piston is resisted against the lower surface of described upper fluid cylinder, the second annular space is formed between the upper surface of its lower surface and described second fixed piston, the sidewall of described fixed piston is provided with the effluent hole be connected with described second annular space.
Fluid cylinder water injection packer as above, wherein, the lateral surface of described second fixed piston is convexly equipped with a ring ear, described ring ear contacts with the lower surface of described lower fluid cylinder.
Fluid cylinder water injection packer as above, wherein, described sealing comprises and is multiplely alternately set in baffle ring on described exterior central tube and packing element from top to bottom, the lower surface of described outer tube is mutually closely connected with the described baffle ring of top side, and the upper surface of described mobile piston contacts with the described packing element of lower side.
Fluid cylinder water injection packer as above, wherein, the upper end of described exterior central tube is socketed with a pressure ring, in the cavity that described pressure ring is formed between described outer tube and described central tube.
The fluid cylinder water injection packer that the utility model proposes, water filling or the undergauge oil well that can be applicable to cover change water injection well (casing deformation well) carry out operation, this packer without slip support, and sealing mechanism adopts compression type glue barrel, set with deblocking easy to operate, job execution can be made reliably easy.
The fluid cylinder water injection packer that the utility model proposes, its minimum diameter (central tube place) is 50mm, maximum outside diameter (baffle ring place) is 102mm, upper and lower pressure reduction 30MPa can be born, suppressed by ground, can restting, packer inflation coefficient is large, its structure is simple, setting, deblocking is reliable, by arranging two-stage fluid cylinder (upper fluid cylinder, lower fluid cylinder), ensure that packing element fully compresses, good sealing effect, the cover that can realize 5 ＂ water filling casing deformation wells becomes the water filling of below section.
Accompanying drawing explanation
Fig. 1 is the composition structural representation of fluid cylinder water injection packer of the present utility model.
Critical element label declaration:
1 central tube 11 top connection
12 liquid injection hole 2 outer tubes
3 sealing mechanism 31 exterior central tubes
32 sealing 321 baffle rings
322 packing element 33 pressure rings
4 sealing pushing mechanism 41 mobile pistons
Fluid cylinder on 42 fixed pistons 43
5 second sealing pushing part 51 second mobile pistons
52 second fixed piston 521 effluent holes
522 ring ear 53 times fluid cylinders
54 shear pin H annular spaces
H2 second annular space
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and detailed description of the invention of the present utility model be described:
Fig. 1 is the composition structural representation of fluid cylinder water injection packer of the present utility model.
See Fig. 1, the fluid cylinder water injection packer that the utility model proposes, it comprises central tube 1, outer tube 2, sealing mechanism 3 and sealing pushing mechanism 4, and wherein, the upper end of described central tube 1 is connected with top connection 11 by external screw thread;
Described outer tube 2 is set on described central tube 1, and its upper end is by internal thread and described top connection 11 bolt;
Described sealing mechanism 3 is provided with an exterior central tube 31 that can be slidably located on described central tube 1, and the outside of described exterior central tube 31 is arranged with sealing 32, and the upper end of described sealing 32 is mutually closely connected with the lower surface of described outer tube 2;
Described sealing pushing mechanism 4 includes mobile piston 41, fixed piston 42 and upper fluid cylinder 43, described mobile piston 41 and fixed piston 42 from top to bottom spacer sleeve are located on described central tube 1, described upper fluid cylinder 43 is set in the outside of described mobile piston 41 and fixed piston 42, itself and described mobile piston 41 bolt, the upper end of described mobile piston 41 is connected to the lower end of described exterior central tube 31 by internal thread, its upper surface contacts with the lower end of described sealing 32, described fixed piston 42 is spirally connected fixing with described central tube 1, its lateral surface is mutually closely connected with the medial surface of described upper fluid cylinder 43, annular space H is formed between the upper surface of described fixed piston 42 and the lower surface of described mobile piston 41, described central tube 1 is provided with the liquid injection hole 12 be connected with described annular space H.
In the utility model, when in central tube 1 during fluid injection, liquid flows through liquid injection hole 12 and enters in ring cavity H, and promote mobile piston 31 moves, thus it is up to make exterior central tube 31 slide on central tube 1 thereupon, the two ends of sealing 32 are then under outer tube 2 and mobile piston 31 promote relatively, and it can expanse, thus the sealing realized in down-hole and set function.
As shown in Figure 1, in a preferred embodiment, the upper end of described fixed piston 42 is socketed on the lower end of described central tube 1, and described upper fluid cylinder 43 is set in outside the epimere of described fixed piston 42.
Further, separately be provided with one second sealing pushing part 5, described second sealing pushing part 5 includes one second mobile piston 51, one second fixed piston 52 and once fluid cylinder 53, the upper end of described second mobile piston 51 and described second fixed piston 52 is set in outside the hypomere of described fixed piston 42 successively, described second fixed piston 52 is spirally connected fixing with described fixed piston 42, the closely connected outside being set in described second mobile piston 51 and the second fixed piston 52 of described lower fluid cylinder 53, the lateral surface bolt of its upper end and described second mobile piston 51, the lateral surface of its lower end and described second fixed piston 52 is connected and fixed by shear pin 54, wherein, the upper surface of described second mobile piston 51 is resisted against the lower surface of described upper fluid cylinder 43, the second annular space H2 is formed between the upper surface of its lower surface and described second fixed piston 52, the sidewall of described fixed piston 42 is provided with the effluent hole 521 be connected with described second annular space H2.
Wherein, the lateral surface of described second fixed piston 52 is convexly equipped with a ring ear 522, described ring ear 522 contacts with the lower surface of described lower fluid cylinder 53.After described shear pin 54 is cut off, by lower fluid cylinder 53 described in described ring ear 522 energy support.
Preferably, described sealing 32 comprises and is multiplely alternately set in baffle ring 321 on described exterior central tube 31 and packing element 322 from top to bottom, the lower surface of described outer tube 2 is mutually closely connected with the described baffle ring 321 of top side, and the upper surface of described mobile piston 41 contacts with the described packing element 322 of lower side.
In addition, the upper end of described exterior central tube 31 is socketed with a pressure ring 33, in the cavity that described pressure ring 33 is formed between described outer tube 2 and described central tube 1.By arranging pressure ring 33, can carry out spacing to baffle ring 321, avoiding baffle ring 321 to depart from from exterior central tube 31 further, improving functional reliability.
The fluid cylinder water injection packer that the utility model proposes, when practicing, first be lowered into the precalculated position (cover of such as casing deformation well becomes section place) of down-hole, subsequently, from well head to water filling described central tube 1, liquid flows through described liquid injection hole 12, effluent hole 521 correspondence enters in annular space H and the second annular space H2, on the one hand, it is up that liquid stream in annular space H promotes mobile piston 41, then described exterior central tube 31 upward sliding is promoted by mobile piston 41, and the two ends of sealing 32 are compressed under the effect of outer tube 2 and mobile piston 31, make packing element 322 by compression-expansion, thus realize and the setting of the borehole wall, on the other hand, by the fluid injection in the second annular space H2, described second mobile piston 51 can be promoted, and it is up to drive lower fluid cylinder 53 to cut off shear pin 54, thus upwards promote upper fluid cylinder 43 further, and be the thrust that mobile piston 41 increases upwards by upper fluid cylinder 43, packing element 322 is reached and better expands and sealing effectiveness, afterwards, can continue to carry out sustained water injection operation to down-hole from well head,
After underground water-injection operation completes, only need to stop to water filling in central tube 1, packing element 322 is under the effect of selfer elastic force, can promote mobile piston 41 to move down, self is replied by swelling state is original state, thus completes deblocking, subsequently, can by the utility model from proposition ground, down-hole.
The fluid cylinder water injection packer that the utility model proposes, its minimum diameter (central tube place) is 50mm, maximum outside diameter (baffle ring place) is 102mm, upper and lower pressure reduction 30MPa can be born, suppressed by ground, can restting, packer inflation coefficient is large, its structure is simple, setting, deblocking is reliable, by arranging two-stage fluid cylinder (upper fluid cylinder, lower fluid cylinder), ensure that packing element fully compresses, good sealing effect, the cover that can realize 5 ＂ water filling casing deformation wells becomes the water filling of below section.
The foregoing is only the schematic detailed description of the invention of the utility model, and be not used to limit scope of the present utility model.Any those skilled in the art, equivalent variations done under the prerequisite not departing from design of the present utility model and principle and amendment, all should belong to the scope of the utility model protection.
Claims (6)
1. a fluid cylinder water injection packer, is characterized in that, described fluid cylinder water injection packer comprises:
Central tube, upper end is connected with top connection by external screw thread;
Outer tube, is set on described central tube, and described outer sleeve upper is by internal thread and described top connection bolt;
Sealing mechanism, be provided with an exterior central tube that can be slidably located on described central tube, the outside of described exterior central tube is arranged with sealing, and the upper end of described sealing is mutually closely connected with the lower surface of described outer tube;
Sealing pushing mechanism, include mobile piston, fixed piston and upper fluid cylinder, described mobile piston and fixed piston from top to bottom spacer sleeve are located on described central tube, described upper fluid cylinder is then set in the outside of described mobile piston and fixed piston, itself and described mobile piston bolt, the upper end of described mobile piston is connected to the lower end of described exterior central tube by internal thread, its upper surface contacts with the lower end of described sealing, described fixed piston and described central tube are spirally connected fixing, its lateral surface is mutually closely connected with the medial surface of described upper fluid cylinder, annular space is formed between the upper surface of described fixed piston and the lower surface of described mobile piston, described central tube is provided with the liquid injection hole be connected with described annular space.
2. fluid cylinder water injection packer according to claim 1, is characterized in that, the upper end of described fixed piston is socketed on the lower end of described central tube, and described upper fluid cylinder is then set in outside the epimere of described fixed piston.
3. fluid cylinder water injection packer according to claim 2, it is characterized in that, separately be provided with one second sealing pushing part, described second sealing pushing part includes one second mobile piston, one second fixed piston and once fluid cylinder, the upper end of described second mobile piston and described second fixed piston is set in outside the hypomere of described fixed piston successively, described second fixed piston and described fixed piston are spirally connected fixing, described lower fluid cylinder is the closely connected outside being set in described second mobile piston and the second fixed piston then, the lateral surface bolt of its upper end and described second mobile piston, the lateral surface of its lower end and described second fixed piston is connected and fixed by shear pin, wherein, the upper surface of described second mobile piston is resisted against the lower surface of described upper fluid cylinder, the second annular space is formed between the upper surface of its lower surface and described second fixed piston, the sidewall of described fixed piston is provided with the effluent hole be connected with described second annular space.
4. fluid cylinder water injection packer according to claim 3, is characterized in that, the lateral surface of described second fixed piston is convexly equipped with a ring ear, and described ring ear contacts with the lower surface of described lower fluid cylinder.
5. the fluid cylinder water injection packer according to any one of Claims 1-4, it is characterized in that, described sealing comprises and is multiplely alternately set in baffle ring on described exterior central tube and packing element from top to bottom, the lower surface of described outer tube is mutually closely connected with the described baffle ring of top side, and the upper surface of described mobile piston contacts with the described packing element of lower side.
6. fluid cylinder water injection packer according to claim 5, is characterized in that, the upper end of described exterior central tube is socketed with a pressure ring, in the cavity that described pressure ring is formed between described outer tube and described central tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520668040.3U CN205025417U (en) | 2015-08-31 | 2015-08-31 | Hydraulic cylinder water injection packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520668040.3U CN205025417U (en) | 2015-08-31 | 2015-08-31 | Hydraulic cylinder water injection packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205025417U true CN205025417U (en) | 2016-02-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520668040.3U Active CN205025417U (en) | 2015-08-31 | 2015-08-31 | Hydraulic cylinder water injection packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205025417U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639972A (en) * | 2016-12-08 | 2017-05-10 | 中国石油天然气股份有限公司 | Water plugging device for horizontal well |
-
2015
- 2015-08-31 CN CN201520668040.3U patent/CN205025417U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639972A (en) * | 2016-12-08 | 2017-05-10 | 中国石油天然气股份有限公司 | Water plugging device for horizontal well |
| CN106639972B (en) * | 2016-12-08 | 2019-05-07 | 中国石油天然气股份有限公司 | Water plugging device for horizontal well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |