CN205936472U - A water conservancy anchor for oil development field - Google Patents

Abstract

The utility model discloses a water conservancy anchor for oil development field, including top connection, water conservancy anchor main part, spring plate and return spring, install the control ring in the water conservancy anchor main part, be connected with the control ring under the top connection, water conservancy anchor main part and sand prevention intertube are provided with sealing device A, sealing device A hugs closely the sand prevention pipe, spring plate passes through fixing bolt to be fixed in water conservancy anchor main part, the inboard fluke of connecting of return spring, be provided with sealing device B in the middle of fluke and the water conservancy anchor main part, water conservancy anchor main part lower extreme has the lower clutch through steady nail fixing, be provided with vertical groove and circular recess in the middle of the fluke. This a water conservancy anchor for oil development field, simple structure, low in manufacturing cost, long service life, the sand prevention pipe has been put at the inside cover of water conservancy anchor body to the workman operation be convenient for, can effectually prevent sand thing manhole in, reduce the jamming of fluke, the operation of pumping that can be better promotes the development of water conservancy anchor trade.

Description

A kind of hydraulic anchor for field of petroleum exploitation

Technical field

The utility model is related to oil well anchoring device technical field, specially a kind of waterpower for field of petroleum exploitation Anchor.

Background technology

At home and abroad in crude oil production, mechanical oil recovery occupies space of top prominence, and in mechanical oil recovery with oil well pump is Main, oil-well pump equipment plays vital effect to whole crude oil production, and due to oil rig particularly down-hole dress The economic loss caused by fault put is extremely huge, during hydraulic anchor Shi You area production development, for grappling construction It is ensured that one of important tool of construction technology performance, a kind of existing down-hole string hydraulic anchor, its structure is to install on anchor body to pipe string Anchor fluke, anchor fluke central axis upright, in anchor body central axis, the hydraulic anchor of this structure, is that tribute has been made in oil well grappling operation Offer, but work after anchor fluke reclaim when uniquely rely on spring in anchor fluke elastic force reclaim, due to work after usually occur anchor tooth because The factors such as sand card, fouling, spring failure affect, and cause normally to reclaim phenomenon, and during closure, a good water Power anchor usually decides production efficiency and the cost of winning in oil field.

Utility model content

The purpose of this utility model is to provide a kind of hydraulic anchor for field of petroleum exploitation, to solve above-mentioned background skill The appearance anchor tooth proposing in art affects because of factors such as sand card, fouling, spring failures, causes the problems such as normally can not reclaim phenomenon.

For achieving the above object, the utility model provides following technical scheme：A kind of waterpower for field of petroleum exploitation Anchor, including top connection, hydraulic anchor main body, spring bearer plate and return spring, described hydraulic anchor main body is provided with control ring, described It is connected with control ring under top connection, between described hydraulic anchor main body and sand-prevention pipe, is provided with sealing device A, described sealing device A is tight Patch sand-prevention pipe, described spring bearer plate is fixed in hydraulic anchor main body by fixing bolt, and described spring bearer plate and fixing bolt are even The place of connecing is provided with impression, connecting spring pressing plate outside described return spring, connects anchor fluke, described anchor fluke inside described return spring There is sealing device B with hydraulic anchor main body middle setting, described hydraulic anchor main body lower end is passed through steady nail and is fixed with lower contact, described anchor Pawl middle setting has vertical slot and circular groove.

Preferably, described hydraulic anchor body interior is equipped with sand-prevention pipe, and is sealed by sealing device A between the two.

Preferably, sealed by sealing device B between described hydraulic anchor main body and anchor fluke.

Preferably, described hydraulic anchor main body is provided with 12 holes obliquely, and is provided with return spring and anchor fluke in hole.

Preferably, described sealing device A and sealing device B is 0 shape sealing ring.

Preferably, the outer end thickness of described anchor fluke is less than the pipe thickness of hydraulic anchor main body.

Compared with prior art, the beneficial effects of the utility model are：This is used for the hydraulic anchor of field of petroleum exploitation, structure Simply, low cost of manufacture, long service life, it is easy to operative, using setting the elastic force of return spring it is ensured that certain In pressure limit, hydraulic anchor does not work, thus avoiding down the problem being hampered during instrument, is equipped with anti-in hydraulic anchor body interior Sand tube, can effectively prevent sand thing from entering in the hole, reduce the clamping stagnation of anchor fluke, can preferably carry out operation of pumping, promote waterpower The development of anchor industry.

Brief description

Fig. 1 is the utility model structural representation；

Fig. 2 is the utility model structure anchor fluke schematic diagram.

In figure：1st, top connection, 2, control ring, 3, hydraulic anchor main body, 4, sealing device A, 5, sand-prevention pipe, 6, fixing bolt, 7th, spring bearer plate, 8, return spring, 9, sealing device B, 10, lower contact, 11, steady follow closely, 12, anchor fluke, 13, impression, 14, circular recessed Groove, 15, vertical slot.

Specific embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely description is it is clear that described embodiment is only a part of embodiment of the utility model rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of making creative work The every other embodiment being obtained, broadly falls into the scope of the utility model protection.

Refer to Fig. 1-2, the utility model provides a kind of technical scheme：A kind of hydraulic anchor for field of petroleum exploitation, Including top connection 1, control ring 2, hydraulic anchor main body 3, sealing device A4, sand-prevention pipe 5, fixing bolt 6, spring bearer plate 7, return bullet Spring 8, sealing device B9, lower contact 10, surely nail 11, anchor fluke 12, impression 13, circular groove 14 and vertical slot 15, hydraulic anchor main body 3 On control ring 2 is installed, be connected with control ring 2 under top connection 1, between hydraulic anchor main body 3 and sand-prevention pipe 5, be provided with sealing device A4, is equipped with sand-prevention pipe 5 inside hydraulic anchor main body 3, and is sealed by sealing device A4 between the two, can effectively prevent sand thing Enter in the hole, reduce the clamping stagnation of anchor fluke 12, hydraulic anchor main body 3 is provided with 12 holes obliquely, and is provided with return bullet in hole Spring 8 and anchor fluke 12, sealing device A4 is close to sand-prevention pipe 5, and spring bearer plate 7 is fixed in hydraulic anchor main body 3 by fixing bolt 6, Spring bearer plate 7 and fixing bolt 6 junction are provided with impression 13, and return spring 8 outside connecting spring pressing plate 7, in return spring 8 Side connects anchor fluke 12, and anchor fluke 12 and hydraulic anchor main body 3 middle setting have sealing device B9, and the outer end thickness of anchor fluke 12 is less than waterpower There is gap between the pipe thickness of anchor main body 3, and ram's horn 12 and spring bearer plate 7, pass through close between hydraulic anchor main body 3 and anchor fluke 12 Seal apparatus B9 seals, and sealing device A4 and sealing device B9 is 0 shape sealing ring, and it is solid that steady nail 11 is passed through in hydraulic anchor main body 3 lower end Surely there is lower contact 10, anchor fluke 12 middle setting has vertical slot 15 and circular groove 14.

Operation principle：When being used for the hydraulic anchor of field of petroleum exploitation using this, during motion, hydraulic anchor internal pressure is higher than During external pressure, spring bearer plate 7 is released into footpath, realizes grappling, the increase anchorage force with water injection pressure also accordingly increases, Hydraulic anchor internal pressure is released rear return spring 8 meeting pushed home, meanwhile, fixing bolt 6 drives anchor fluke 12 to retract to outside footpath, Thus releasing grappling, retract difficulty if there is anchor fluke 12, that is, oily overpressure releases rear anchor fluke 12 and is still stuck in sand-prevention pipe 5 inwall On, at this moment above put forward hydraulic anchor main body 3, top connection 1 and control ring 2 all can be subject to pulling force upwards, control ring 2 and sand-prevention pipe 5 it Between the connection of steady nail 11, thus control ring 2 can pull up sand-prevention pipe 5 by steady nail 11, and sand-prevention pipe 5 is blocked by fixing bolt 6 again, makes Rubbing relatively is produced, sand-prevention pipe 5 drives fixing bolt 6 so that anchor fluke 12 is retracted by force, hydraulic anchor unfreezing between control ring 2 and 5, this Be exactly this be used for field of petroleum exploitation hydraulic anchor work whole process.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out with multiple changes in the case of without departing from principle of the present utility model and spirit, repair Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of hydraulic anchor for field of petroleum exploitation, including top connection（1）, hydraulic anchor main body（3）, spring bearer plate（7）With Return spring（8）It is characterised in that：Described hydraulic anchor main body（3）On control ring is installed（2）, described top connection（1）Lower connection There is control ring（2）, described hydraulic anchor main body（3）And sand-prevention pipe（5）Middle setting has sealing device A（4）, described sealing device A （4）It is close to sand-prevention pipe（5）, described spring bearer plate（7）By fixing bolt（6）It is fixed on hydraulic anchor main body（3）On, described spring Pressing plate（7）And fixing bolt（6）Junction is provided with impression（13）, described return spring（8）Outside connecting spring pressing plate（7）, Described return spring（8）Inner side connects anchor fluke（12）, described anchor fluke（12）With hydraulic anchor main body（3）Middle setting has sealing device B（9）, described hydraulic anchor main body（3）Steady nail is passed through in lower end（11）It is fixed with lower contact（10）, described anchor fluke（12）Middle setting has Vertical slot（15）And circular groove（14）.

2. a kind of hydraulic anchor for field of petroleum exploitation according to claim 1 it is characterised in that：Described hydraulic anchor master Body（3）Inside is equipped with sand-prevention pipe（5）, and pass through sealing device A between the two（4）Sealing.

3. a kind of hydraulic anchor for field of petroleum exploitation according to claim 1 it is characterised in that：Described hydraulic anchor master Body（3）And anchor fluke（12）Between pass through sealing device B（9）Sealing.

4. a kind of hydraulic anchor for field of petroleum exploitation according to claim 1 it is characterised in that：Described hydraulic anchor master Body（3）It is provided with 12 holes obliquely, and in hole, be provided with return spring（8）And anchor fluke（12）.

5. a kind of hydraulic anchor for field of petroleum exploitation according to claim 1 it is characterised in that：Described sealing device A（4）With sealing device B（9）It is 0 shape sealing ring.

6. a kind of hydraulic anchor for field of petroleum exploitation according to claim 1 it is characterised in that：Described anchor fluke（12） Outer end thickness be less than hydraulic anchor main body（3）Pipe thickness.