CN203362081U - Hydraulic type hydraulic anchor - Google Patents
Hydraulic type hydraulic anchor Download PDFInfo
- Publication number
- CN203362081U CN203362081U CN 201320430264 CN201320430264U CN203362081U CN 203362081 U CN203362081 U CN 203362081U CN 201320430264 CN201320430264 CN 201320430264 CN 201320430264 U CN201320430264 U CN 201320430264U CN 203362081 U CN203362081 U CN 203362081U
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- Prior art keywords
- main body
- fluid pressure
- anchor
- pressure type
- central tube
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Abstract
The utility model discloses a hydraulic type hydraulic anchor which comprises an anchor body. A center pipe and at least one anchor fluke are arranged in the anchor body, one end of the center pipe is provided with a piston, and a closed space is formed by the anchor body, the piston, the anchor fluke and the center pipe and filled with hydraulic oil. Due to the fact that the closed space is formed by the anchor body, the piston, the anchor fluke and the center pipe and filled with the hydraulic oil, and the anchor fluke is separated from a working area of the center pipe and protected from being stuck by sand.
Description
Technical field
The utility model relates to field of petroleum exploitation, is specifically related to a kind of fluid pressure type hydraulic anchor.
Background technology
At present for the hydraulic anchor of tubing string grappling effect, be divided into two kinds of metal hydraulic anchor and nonmetal water power anchors, major part is used in the straight well section in oil extraction process.This type of hydraulic anchor often contacts with liquid in pipe because the anchor body is inner after long-term the use, may cause the fouling anchor fluke not regain smoothly; Secondly the anchor fluke position is single hermetically-sealed construction, and the tubing string internal pressure is too high, and long-term the use can be revealed in generation; If shake out in the 3rd well or tiny foreign material are arranged, the anchor fluke position is long-pending sand or stockpile tiny foreign material easily, can produce the sand card of anchor fluke.
The utility model content
Provide hereinafter about brief overview of the present utility model, in order to the basic comprehension about some aspect of the present utility model is provided.Should be appreciated that this general introduction is not about exhaustive general introduction of the present utility model.It is not that intention is determined key of the present utility model or pith, neither be intended to limit scope of the present utility model.Its purpose is only that the form of simplifying provides some concept, usings this as the preorder in greater detail of discussing after a while.
In order to solve the problem of prior art, the utility model provides a kind of fluid pressure type hydraulic anchor that effectively prevents anchor fluke sand card.
To achieve these goals, the technical scheme that the utility model is taked is:
A kind of fluid pressure type hydraulic anchor, comprise main body, is provided with central tube and at least one anchor fluke in described main body, and an end of described central tube is provided with piston, and described main body, piston, anchor fluke and central tube have formed an enclosure space, in described enclosure space, are provided with hydraulic oil.
Compared with prior art, the beneficial effects of the utility model are:
The utility model has formed an enclosure space by main body, piston, anchor fluke and central tube, has been full of hydraulic oil in enclosure space, makes anchor fluke and the isolation of central tube workspace, and the protection anchor fluke is not by the sand card.
The accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of a kind of fluid pressure type nonmetal water power anchor fluid pressure type hydraulic anchor that Fig. 1 provides for the utility model embodiment.
Reference numeral:
The 1-anchor fluke; The 2-top connection; The 3-main body; The 4-central tube; The 5-pressing plate; The 6-inlet opening; 7-the first spring; 8-the second spring; The 9-piston; 10-the 3rd sealing ring; 11-the second sealing ring; 12-the 4th sealing ring; 13-the first sealing ring; The 14-screw; The 15-screw plug; 16-is marked closely; 17-hydraulic oil.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.The element of describing in an accompanying drawing of the present utility model or a kind of embodiment and feature can combine with element and feature shown in one or more other accompanying drawing or embodiment.It should be noted that for purposes of clarity, omitted, expression and description known to persons of ordinary skill in the art parts and processing irrelevant with the utility model in accompanying drawing and explanation.Embodiment based in the utility model, those of ordinary skills are not paying under the creative work prerequisite the every other embodiment obtained, and all belong to the scope of the utility model protection.
Referring to Fig. 1, a kind of fluid pressure type hydraulic anchor, comprise main body 3, be provided with central tube 4 and at least one anchor fluke 1 in main body 3, one end of central tube 4 is provided with piston 9, and main body 3, piston 9, anchor fluke 1 have formed an enclosure space with central tube 4, are provided with hydraulic oil 17 in described enclosure space.
Be arranged in enclosure space and be provided with hydraulic oil, make anchor fluke and the isolation of central tube workspace, effectively prevent anchor fluke sand card.
Alternatively, the inwall of main body 3 is provided with a plurality of radial holes, and anchor fluke 1 is arranged in described radial hole.
Anchor fluke is arranged in radial hole, increases the grappling effect of anchor fluke;
Preferably, radial hole evenly arranges along the length direction dislocation of central tube 4, is provided with an anchor fluke in each radial hole.
Alternatively, an end of main body 3 connects top connection 2, and top connection 2 is fixedly connected with main body 3 by marking closely 16, and top connection 2 is provided with cannelure near piston 9 one ends.Preferably, the cannelure bottom is provided with the spaced aperture of at least one circle.Also can process as required two circle apertures.Each circle has a plurality of apertures, the certain distance of little span that each is adjacent.
One circle or the multi-turn Small Holes of processing in top connection, for piston provides power path.
Particularly, the end that on central tube 4, cover has the first spring 7, the first springs 7 is to stopping on piston 9, and on anchor fluke 1, cover has the second spring 8.
Preferably, in main body 2, be provided with step, central tube 4 is between described step and top connection 2.Step refers to and the central tube step that topmost face offsets herein, and near the external screw thread of main body 3, step is on the top of the first sealing ring 13.
It is fixing that central tube is carried out left and right by top connection and step.For piston and the first spring provide operating path.
Preferably, main body 3 is provided with inlet opening 6, and inlet opening 6 is provided with screw plug 15.The screw plug 15 enclosure space top that is threaded.Facilitate the annex solution force feed by inlet opening.
Preferably, the outside of anchor fluke 1 is provided with pressing plate 5, and pressing plate 5 is fixed on main body 3.Preferably by screw 14, be fixed on main body 3.Pressing plate 5 is used for fixing the second spring 8.
Preferably, central tube 4 is away between an end of piston and main body 3, being provided with the first sealing ring 13; Or/and, be provided with the second sealing ring 11 between piston 9 and central tube 4 and main body 2, the second sealing ring 11 is set between piston 9 and central tube 4, be provided with the second sealing ring 11 between piston 9 and main body 2, the ectonexine of piston 9 is equipped with the second sealing ring 11; Or/and, be provided with the 3rd sealing ring 10 between top connection 2 and main body 3; Or/and, be provided with the 4th sealing ring 12 between the inwall of anchor fluke 1 and radial hole.
The first sealing ring of the present utility model, the second sealing ring and the 3rd sealing ring all can arrange two-layer, and as shown in Figure 1, the sealing in main body adopts double sealing structure, effectively prevent from revealing.
Referring to Fig. 1, operating principle of the present utility model: when horizontal well carries out the horizontal segment pressure break, instrument is connected to position before or after packer, with tubing string, is lowered to horizontal segment.During operation, after in tubing string, hydraulic pressure reaches certain value, hydraulic pressure is delivered on piston 9 by the tiny aperture of top connection 2, order about piston 9 and overcome the first spring 7 resistances and move right, now hydraulic oil 17 transferring power of closed area flow to the space at anchor fluke 1 place, overcome the resistance of the second spring 8, force anchor fluke 1 outwards to open, when anchor fluke 1 top, after sleeve pipe, distortion in a small amount can occur, until the complete grappling of anchor fluke 1, so effectively prevented the left and right play of horizontal segment tubing string; After operation completes, pressure decreased, piston 9 overcomes resistance and moves left under the effect of the first spring 7, hydraulic oil 17 pressure drops of closed area simultaneously, under the effect of the second spring 8, anchor fluke 1 retraction that resets, complete whole operation process.Whole process fracturing fluid and anchor fluke 1 are isolated by space, hydraulic oil place, effectively sand control.
Fluid pressure type hydraulic anchor of the present utility model is a kind of fluid pressure type nonmetal water power anchor.
In the utility model the various embodiments described above, the sequence number of embodiment only is convenient to describe, and does not represent the quality of embodiment.Description to each embodiment all emphasizes particularly on different fields, and there is no the part described in detail in certain embodiment, can be referring to the associated description of other embodiment.
In the embodiment such as apparatus and method of the present utility model, obviously, each parts or each step reconfigure after can decomposing, combine and/or decomposing.These decomposition and/or reconfigure and should be considered as equivalents of the present utility model.Simultaneously, in the above in the description to the utility model specific embodiment, the feature of describing and/or illustrating for a kind of embodiment can be used in same or similar mode in one or more other embodiment, combined with the feature in other embodiment, or substitute the feature in other embodiment.
Should emphasize, term " comprises/comprises " existence that refers to feature, key element, step or assembly when this paper is used, but does not get rid of the existence of one or more further feature, key element, step or assembly or add.
Finally it should be noted that: described the utility model and advantage thereof in detail although above, be to be understood that in the situation that do not exceed the spirit and scope of the present utility model that limited by appended claim and can carry out various changes, alternative and conversion.And scope of the present utility model is not limited only to the specific embodiment of the described process of manual, equipment, means, method and step.The one of ordinary skilled in the art will readily appreciate that from disclosure of the present utility model, according to the utility model, can use and carries out with the essentially identical function of corresponding embodiment described herein or obtain process, equipment, means, method or step result essentially identical with it, that existing and will be developed future.Therefore, appended claim is intended to comprise such process, equipment, means, method or step in their scope.
Claims (10)
1. a fluid pressure type hydraulic anchor, comprise main body, it is characterized in that, be provided with central tube and at least one anchor fluke in described main body, one end of described central tube is provided with piston, and described main body, piston, anchor fluke and central tube have formed an enclosure space, in described enclosure space, is provided with hydraulic oil.
2. fluid pressure type hydraulic anchor according to claim 1, is characterized in that, the inwall of described main body is provided with a plurality of radial holes, and described anchor fluke is arranged in described radial hole.
3. fluid pressure type hydraulic anchor according to claim 2, is characterized in that, described radial hole evenly arranges along the length direction dislocation of described central tube.
4. according to the described fluid pressure type hydraulic anchor of claim 1-3 any one, it is characterized in that, an end of described main body connects top connection, and described top connection is provided with cannelure near described piston one end.
5. fluid pressure type hydraulic anchor according to claim 4, is characterized in that, described cannelure bottom is provided with the spaced aperture of at least one circle.
6. fluid pressure type hydraulic anchor according to claim 4, is characterized in that, on described central tube, cover has the first spring, and an end of described the first spring supports and stops on described piston, and on described anchor fluke, cover has the second spring.
7. fluid pressure type hydraulic anchor according to claim 1, is characterized in that, in described main body, is provided with step, and described central tube is between described step and described top connection.
8. fluid pressure type hydraulic anchor according to claim 1, is characterized in that, described main body is provided with inlet opening, and described inlet opening is provided with screw plug.
9. fluid pressure type hydraulic anchor according to claim 1, is characterized in that, the outside of described anchor fluke is provided with pressing plate, and described pressing plate is fixed on main body.
10. fluid pressure type hydraulic anchor according to claim 4, is characterized in that, described central tube is away between an end of piston and described main body, being provided with the first sealing ring; Or/and, be provided with the second sealing ring between described piston and described central tube and main body; Or/and, be provided with the 3rd sealing ring between described top connection and described main body; Or/and, be provided with the 4th sealing ring between the inwall of described anchor fluke and radial hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320430264 CN203362081U (en) | 2013-07-18 | 2013-07-18 | Hydraulic type hydraulic anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320430264 CN203362081U (en) | 2013-07-18 | 2013-07-18 | Hydraulic type hydraulic anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203362081U true CN203362081U (en) | 2013-12-25 |
Family
ID=49809867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320430264 Expired - Fee Related CN203362081U (en) | 2013-07-18 | 2013-07-18 | Hydraulic type hydraulic anchor |
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| Country | Link |
|---|---|
| CN (1) | CN203362081U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179468A (en) * | 2014-08-22 | 2014-12-03 | 中国石油化工股份有限公司江汉油田分公司采油工艺研究院 | Integrated drillable hydraulic anchor with safety release |
| CN104179468B (en) * | 2014-08-22 | 2017-01-04 | 中国石油化工股份有限公司江汉油田分公司采油工艺研究院 | Integral type of giving up safely can bore hydraulic anchor |
| CN115680530A (en) * | 2021-07-21 | 2023-02-03 | 中国石油天然气股份有限公司 | Prestressed well completion ground anchor |
-
2013
- 2013-07-18 CN CN 201320430264 patent/CN203362081U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179468A (en) * | 2014-08-22 | 2014-12-03 | 中国石油化工股份有限公司江汉油田分公司采油工艺研究院 | Integrated drillable hydraulic anchor with safety release |
| CN104179468B (en) * | 2014-08-22 | 2017-01-04 | 中国石油化工股份有限公司江汉油田分公司采油工艺研究院 | Integral type of giving up safely can bore hydraulic anchor |
| CN115680530A (en) * | 2021-07-21 | 2023-02-03 | 中国石油天然气股份有限公司 | Prestressed well completion ground anchor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20190718 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |