CN201344013Y - Small-diameter packer - Google Patents
Small-diameter packer Download PDFInfo
- Publication number
- CN201344013Y CN201344013Y CNU2009200013330U CN200920001333U CN201344013Y CN 201344013 Y CN201344013 Y CN 201344013Y CN U2009200013330 U CNU2009200013330 U CN U2009200013330U CN 200920001333 U CN200920001333 U CN 200920001333U CN 201344013 Y CN201344013 Y CN 201344013Y
- Authority
- CN
- China
- Prior art keywords
- hydraulic cylinder
- central pipe
- piston rod
- pipe
- portion central
- 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.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 241000309551 Arthraxon hispidus Species 0.000 abstract 5
- 238000012856 packing Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a packer inside an oil field sleeve, in particular to a small-diameter packer. The small-diameter packer comprises an upper joint head, an upper portion central pipe, a hydraulic cylinder, a lower portion central pipe and a lower joint head, which are connected with each other sequentially. Moreover, a sealed rubber cylinder is sleeved outside of the upper portion central pipe, the upper portion central pipe with outside threads at the upper end is connected with the upper joint head through the outside threads, the outside threads of the upper portion central pipe is further provided with a counter nut, the lower end of the upper central pipe is fixedly connected with an upper piston rod, the central belt of the upper piston rod is provided with a hollow cavity communicating with the upper portion central pipe, the upper piston rod is provided with a piston, an upper hydraulic cylinder is sleeved on the outer side of the upper piston rod in sealing way, the upper piston rod with outside threads at the lower end is connected with the lower portion central pipe through the outside threads, the upper end of the lower portion central pipe is provided with a piston, a lower hydraulic cylinder is sleeved on the outer side of the lower portion central pipe, the upper end of the lower hydraulic cylinder is fixedly connected with the lower end of the upper hydraulic cylinder, a locating lock outer barrel and the lower joint head are sequentially sleeved at the lower end of the lower hydraulic cylinder and the outer side of the lower portion central pipe , and the lower hydraulic cylinder is fixedly connected with the lower joint head through threads. The small-diameter packer has high bearing capacity, extensive application scale and high success rate.
Description
Technical field
The utility model relates to packer in a kind of sleeve in oil field, is a kind of pony packer specifically, is mainly used in the down-hole capping tools that oil field slim-hole oil well delamination recovered the oil, looked for water blockoff, machinery card water blockoff.
Background technology
The oil field development middle and later periods, realize improving recovery ratio in order to adjust underground residual oil distribution situation, window sidetracking or brill multi-lateral well are cost-effective process meanses.Along with the slim-hole oil well increases, blocker's technology that slim-hole is recovered the oil has become the technical task that must solve.Pony packer is exactly that pony packer mainly divides three part setting mechanisms, retaining mechanism, sealing mechanism with the downhole tool that solves the slim-hole oil production by layer.During use, pony packer is down to the downhole designs position, when 8MPa was suppressed on ground, pony packer set shear pin and cuts off, and fluid cylinder moves upward, packing element is compressed simultaneously, pressure is during to 15MPa, and pony packer just sets fully, and lock tube is locked with the lock ring engagement, lay down pressure, packer also is in sealing state all the time.At present, packer mainly contains two kinds in the narrow tube that use in the oil field, and a kind of is that the expanding packing element is sent out packer, rely on the interior expansion of liquids of oil pipe to make the glue tube base envelope, its packing element bearing capacity of the packer of this form is low, the easy explosion of packing element, be difficult to bear high pressure, can not satisfy the production needs; Another kind is the packer of compression packing element, bearing capacity height, but its complex structure, and the artificial bottom of a well seat that also needs that has seals, complicated operation, the fault rate height also is difficult to meet the needs of production.
Summary of the invention
The purpose of this utility model provides a kind of bearing capacity height, applied widely, pony packer that success rate is high.
For achieving the above object, the utility model is by the following technical solutions:
A kind of pony packer described in the utility model, comprise the top connection that links to each other successively, the central upper portion pipe, hydraulic cylinder, the lower central pipe, lower contact, the outside of central upper portion pipe is set with cartridge, it is characterized in that: the upper end of central upper portion pipe has external screw thread, and be connected with top connection by this external screw thread, cap fully also is installed on the external screw thread of central upper portion pipe, the lower end of central upper portion pipe is fixedly connected with upper piston rod, the center of upper piston rod has the cavity that communicates with the central upper portion pipe, have piston on the upper piston rod, last hydraulic cylinder sealing shroud is contained in the outside of upper piston rod, the lower end of upper piston rod has external screw thread, and by this external screw thread connection lower central pipe, the upper end of lower central pipe has piston, following hydraulic cylinder is sleeved on the outside of lower central pipe, and fixedly connected with the lower end of last hydraulic cylinder in the upper end of following hydraulic cylinder, in following hydraulic cylinder lower end, the outside of lower central pipe is set with location lock urceolus and lower contact successively, and following hydraulic cylinder is fixedlyed connected by screw thread with lower contact.
Adopt after the said structure, this pony packer bearing capacity height, applied widely, success rate is high.
Description of drawings
Accompanying drawing is the structural representation of a kind of embodiment of the utility model.
The specific embodiment
As shown in drawings, a kind of pony packer described in the utility model comprises top connection 1, central upper portion pipe 5, hydraulic cylinder, lower central pipe 10, the lower contact 13 that links to each other successively, and the outside of central upper portion pipe 5 is set with cartridge 4.The upper end of central upper portion pipe 5 has external screw thread, and is connected with top connection 1 by this external screw thread, and cap 3 fully also is installed on the external screw thread of central upper portion pipe 5, is used for fixing top connection 1.The lower end of central upper portion pipe 5 is fixedly connected with upper piston rod 51, the center of upper piston rod 51 has the cavity that communicates with central upper portion pipe 5, have piston on the upper piston rod 51, in the actual production, central upper portion pipe 5 and upper piston rod 51 are integral structure, be partly with the part that swells at upper piston rod 51, this part that swells just forms piston.Last hydraulic cylinder 8 sealing shrouds are contained in the outside of upper piston rod 51, form piston with piston rod 51 upper pistons and cooperate, and are tight in order to seal certainly, and sealing ring 6,7 can be set on the piston of central upper portion pipe 5 and piston rod 51.The lower end of upper piston rod 51 has external screw thread, and by this external screw thread connection lower central pipe 10, the upper end of lower central pipe 10 has piston, and following hydraulic cylinder 9 is sleeved on the outside of lower central pipe 10, and fixedly connected by screw thread with the lower end of last hydraulic cylinder 8 in the upper end of hydraulic cylinder 9 down.Be in order to seal, between the piston on following hydraulic cylinder 9 and the lower central pipe 10, to be provided with sealing ring equally.
Be set with location lock urceolus 11 and lower contact 13 successively in the following outside of hydraulic cylinder 9 lower ends, lower central pipe 10, following hydraulic cylinder 9 and lower contact 13 are fixedlyed connected by screw thread.
This pony packer is used for the later stage pressing crack construction that three cun little oil pipes hang well, main purpose protection downhole hanger and the above sleeve pipe of hanger.After during use this pony packer being finished to precalculated position, well-flushing down by pressure break design, to oil pipe input φ 35 steel balls, through about 30 minutes steel balls to the interior setting sleeve of lower contact 13; Cut off style pin 14 during oil pipe pressurization 25MPa, finish setting.In suppressing process, oil pressure passes in hydraulic cylinder 8, the following hydraulic cylinder 9, in the piston motion that promotes under the effect of hydraulic pressure on central upper portion pipe 5 and the lower central pipe 10 by the aperture on the central tube; Top connection 1 that central upper portion pipe 5 and 10 pullings of lower central pipe are top and back of the body cap 3 relative moving downward, and upward hydraulic cylinder 8, following hydraulic cylinder 9 move upward relatively; Cartridge 4 expands under the effect of two power up and down, with the ring-like space sealing around it.Thereby finish the activity of setting.
Claims (1)
1, a kind of pony packer, comprise the top connection (1) that links to each other successively, central upper portion pipe (5), hydraulic cylinder, lower central pipe (10), lower contact (13), the outside of central upper portion pipe (5) is set with cartridge (4), it is characterized in that: the upper end of central upper portion pipe (5) has external screw thread, and be connected with top connection (1) by this external screw thread, cap (3) fully also is installed on the external screw thread of central upper portion pipe (5), the lower end of central upper portion pipe (5) is fixedly connected with upper piston rod (51), the center of upper piston rod (51) has the cavity that communicates with central upper portion pipe (5), upper piston rod has piston on (51), last hydraulic cylinder (8) sealing shroud is contained in the outside of upper piston rod (51), the lower end of upper piston rod (51) has external screw thread, and by this external screw thread connection lower central pipe (10), the upper end of lower central pipe (10) has piston, following hydraulic cylinder (9) is sleeved on the outside of lower central pipe (10), and fixedly connected with the lower end of last hydraulic cylinder (8) in the upper end of following hydraulic cylinder (9), in following hydraulic cylinder (9) lower end, the outside of lower central pipe (10) is set with location lock urceolus (11) and lower contact (13) successively, and following hydraulic cylinder (9) is fixedlyed connected by screw thread with lower contact (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200013330U CN201344013Y (en) | 2009-01-07 | 2009-01-07 | Small-diameter packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200013330U CN201344013Y (en) | 2009-01-07 | 2009-01-07 | Small-diameter packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201344013Y true CN201344013Y (en) | 2009-11-11 |
Family
ID=41275596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200013330U Expired - Fee Related CN201344013Y (en) | 2009-01-07 | 2009-01-07 | Small-diameter packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201344013Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132944A (en) * | 2011-11-25 | 2013-06-05 | 中国石油天然气股份有限公司 | Hydraulic Small Diameter Packer for Sand Control |
-
2009
- 2009-01-07 CN CNU2009200013330U patent/CN201344013Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132944A (en) * | 2011-11-25 | 2013-06-05 | 中国石油天然气股份有限公司 | Hydraulic Small Diameter Packer for Sand Control |
| CN103132944B (en) * | 2011-11-25 | 2016-07-13 | 中国石油天然气股份有限公司 | Hydraulic Small Diameter Packer for Sand Control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091111 Termination date: 20110107 |