CN202706981U - Step-by-step setting packer - Google Patents
Step-by-step setting packer Download PDFInfo
- Publication number
- CN202706981U CN202706981U CN 201220402643 CN201220402643U CN202706981U CN 202706981 U CN202706981 U CN 202706981U CN 201220402643 CN201220402643 CN 201220402643 CN 201220402643 U CN201220402643 U CN 201220402643U CN 202706981 U CN202706981 U CN 202706981U
- Authority
- CN
- China
- Prior art keywords
- packer
- joint
- slide sleeve
- setting packer
- slider mechanism
- 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 - Lifetime
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Abstract
The utility model provides a step-by-step setting packer, which reduces the accidents that a pipe post is clamped and drilled. The step-by-step setting packer comprises an upper joint, a lower joint and an upper connecting component positioned between the upper joint and the lower joint, wherein a liquid guide hole device is arranged in the upper joint; a slide sleeve mechanism is arranged in the liquid guide hole device; an inner slide sleeve and a steel ball are arranged in the slide sleeve mechanism; a liquid guide component is arranged between the upper joint and the slide sleeve mechanism; an upper part connecting mechanism and an expanding rubber cylinder are arranged in the upper connecting component; and a liquid inlet passage is arranged between the upper connecting component and the upper part connecting mechanism. A plurality of layer sections are constructed layer by layer by the step-by-step setting packer, so that upper and lower packer setting of the corresponding layer section can be realized and a tool is prevented from jacking; the sealing length of the rubber cylinder is increased through the tool; the rubber cylinder is not easy to spring back, so that the friction resistance is increased, the pipe post is prevented from creeping, and the utilization of an anchoring tool is reduced; and the accidents that the pipe post is clamped and drilled are reduced.
Description
Technical field
The utility model relates to a kind of packer, especially a kind of stepped setting packer.
Background technology
Existing inflatable packer fracturing tool construction in layer, other intervals of not constructing, all packer tools all are in the bulging state, and the inside and outside pressure reduction of the uncontrollable pipe of interval of interest packer of constructing, both can't avoid that uniaxial pressure is too high to cause damage to other packing elements, thereby can not satisfy the demand of construction in layer.And conventional packer combination fracturing instrument, although construction stability, anchor watt is many, the construction later stage is caused bit freezing or overhaul accident easily.Above-mentioned tool combinations internal diameter is limited, can realize at most the construction of 4 interval dividing potential drops, can't realize 5-8 interval construction operation, and especially horizontal well divides the multilayer construction difficult realization.
The utility model content
The utility model provides a kind of stepped setting packer that reduces the tubing string lock of tool drilling.
Realize the stepped setting packer of the utility model purpose, comprise top connection, lower contact, the upper connector between top connection and lower contact; Be provided with the delivery hole device in the described top connection, be provided with slider mechanism in the described delivery hole device, be provided with inner sliding sleeve and steel ball in the described slider mechanism; Be provided with drain spare between described top connection and the slider mechanism, be provided with upper part connecting mechanism and expansion packing element in the described upper connector, be provided with the inlet opening passage between described upper connector and the upper part connecting mechanism.
Be provided with shear pin between described upper connector and the slider mechanism.
Be provided with lock pin and sealing ring between described slider mechanism and the inner sliding sleeve.
The beneficial effect of stepped setting packer of the present utility model is as follows:
Stepped setting packer of the present utility model; the construction in layer multi-section multi-layer; can realize up and down packer setting of corresponding interval of interest; and the upper level packer is in off working state; packing element does not set not blow-up, can add equilibrium pressure from sleeve pipe, to reduce the inside and outside construction of pipe pressure reduction; the effect of protection expanding packing element is played in the too high damage to packer of pressure reduction that prevents from constructing.During construction, the sleeve pipe equilibrium pressure can directly be got to construction layer top, prevents from pushing up on the instrument, and instrument has increased the packing element seal length, and packing element is not easy resilience, and purpose is to increase frictional resistance, prevents string creep, thereby has reduced the use of anchor tool; Reduce the generation of tubing string lock of tool drilling.
Description of drawings
Fig. 1 is the structural representation of stepped setting packer of the present utility model.
The specific embodiment
As shown in Figure 1, stepped setting packer of the present utility model comprises top connection 1, lower contact 13, the upper connector 10 between top connection 1 and lower contact 13; Be provided with delivery hole device 2 in the described top connection 1, be provided with slider mechanism 3 in the described delivery hole device 2, be provided with inner sliding sleeve 5 and steel ball 4 in the described slider mechanism 3; Be provided with drain spare 14 between described top connection 1 and the slider mechanism 3, be provided with upper part connecting mechanism 9 and expansion packing element 12 in the described upper connector 10, be provided with inlet opening passage 15 between described upper connector 10 and the upper part connecting mechanism 9.
Be provided with shear pin 6 between described upper connector 10 and the slider mechanism 3.Be provided with lock pin 7 and sealing ring 8 between described slider mechanism 3 and the inner sliding sleeve 5.
Embodiment recited above is described preferred embodiment of the present utility model; be not that scope of the present utility model is limited; design under the spiritual prerequisite not breaking away from the utility model; various distortion and improvement that the common engineers and technicians in this area make technical solutions of the utility model all should fall in the definite protection domain of claims of the present utility model.
Claims (3)
1. a stepped setting packer is characterized in that: comprise top connection, lower contact, the upper connector between top connection and lower contact; Be provided with the delivery hole device in the described top connection, be provided with slider mechanism in the described delivery hole device, be provided with inner sliding sleeve and steel ball in the described slider mechanism; Be provided with drain spare between described top connection and the slider mechanism, be provided with upper part connecting mechanism and expansion packing element in the described upper connector, be provided with the inlet opening passage between described upper connector and the upper part connecting mechanism.
2. stepped setting packer according to claim 1 is characterized in that: be provided with shear pin between described upper connector and the slider mechanism.
3. stepped setting packer according to claim 1 and 2 is characterized in that: be provided with lock pin and sealing ring between described slider mechanism and the inner sliding sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220402643 CN202706981U (en) | 2012-08-15 | 2012-08-15 | Step-by-step setting packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220402643 CN202706981U (en) | 2012-08-15 | 2012-08-15 | Step-by-step setting packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202706981U true CN202706981U (en) | 2013-01-30 |
Family
ID=47587290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220402643 Expired - Lifetime CN202706981U (en) | 2012-08-15 | 2012-08-15 | Step-by-step setting packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202706981U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916918A (en) * | 2017-11-16 | 2018-04-17 | 中国石油集团川庆钻探工程有限公司 | Reservoir stratum separate-layer transformation tool pipe column and fracturing and acidizing method |
-
2012
- 2012-08-15 CN CN 201220402643 patent/CN202706981U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916918A (en) * | 2017-11-16 | 2018-04-17 | 中国石油集团川庆钻探工程有限公司 | Reservoir stratum separate-layer transformation tool pipe column and fracturing and acidizing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |