CN210977382U - Simple sucker rod blowout preventer - Google Patents

Abstract

The utility model discloses a simple and easy sucker rod blowout preventer, when the sucker rod in-process takes place the overflow under having played, can in time accomplish the effect of robbing the dress well head, solve the problem of the long bad knot of polished rod on the one hand, on the other hand solves the problem of losing the sucker rod and easily causing the emergence of accident and unable pressure well of washing in the well, it includes the body of rod, body of rod upper portion sets up the upper portion screwed joint who is used for connecting the promotion nipple joint, the body of rod lower part sets up the lower part screwed joint who is used for connecting the sucker rod, annular clamp body is established to fixed cover on the body of rod between upper portion screwed joint and the lower part screwed joint, the fixed flange that sets up of annular clamp body up of up end, the steel ring groove is seted up to terminal.

Description

Simple sucker rod blowout preventer

Technical Field

The utility model relates to a technical field that prevents spouting of well head specifically is to relate to a simple and easy sucker rod blowout preventer.

Background

Well control blowout prevention work is an important link of safety work at present, and in the sucker rod blowout prevention process, the conventional prevention method is to install a prevention and control gate at the wellhead, and when overflow occurs:

firstly, under the not big condition of overflow, the shut-in well method is in time to take the installation to prevent spouting the box or lose the operating method in the well with the sucker rod, but robbing the dress to prevent spouting the box and having polished rod overlength installation to detain untimely, the box is prevented spouting in the direct mount, and the well head causes the dead end at this moment, brings inconvenience for next step washing, killing the well work.

Secondly, when the overflow amount is large, the sucker rod should be directly thrown into the well, but the method is easy to cause the sucker rod to bend or other large engineering accidents, and great economic loss is caused.

Another currently known method is to install a sucker rod blowout preventer, but the blowout preventer is expensive and increases the production cost, and besides the cost is too high, the blowout preventer must be connected with an outlet, which brings more workload to the field construction.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a simple and easy sucker rod blowout preventer when the sucker rod in-process takes place the overflow down, can in time accomplish the effect of robbing the dress well head, solve the problem that the polished rod length is not good to be buckled on the one hand, on the other hand solves and loses the sucker rod the emergence that easily causes the accident in the well and can't wash the problem of killing the well.

The technical scheme is as follows: the utility model provides a simple and easy sucker rod blowout preventer, it includes the body of rod, its characterized in that, the upper portion setting of the body of rod is used for connecting the upper portion screwed joint that promotes the nipple joint, the lower part setting of the body of rod is used for connecting the lower part screwed joint of sucker rod, between upper portion screwed joint and the lower part screwed joint fixed cover is established on the body of rod and is equipped with annular clamp body, the fixed flange that sets up of up end of annular clamp body, the steel ring groove is seted up to the lower terminal surface of annular clamp body, the outer fringe cover of annular clamp body establishes the clamp head.

Further, the screw-type connector also comprises a variable buckle connector screwed with the lower threaded connector.

Further, the variable buckle joint is a phi 22mm phi 19mm variable buckle joint.

Further, the variable buckle joint is a phi 22mm phi 25mm variable buckle joint.

Has the advantages that: the utility model discloses a when the sucker rod in-process takes place the overflow under having played, easy operation, convenient to use, installation time is short, can in time effectively play the effect of accomplishing to rob the dress well head, has effectively solved the problem of the long bad knot of polished rod, has effectively solved simultaneously and has lost the sucker rod and led to the fact the emergence of accident and the problem that can't wash the kill-job in the well.

Drawings

FIG. 1 is a schematic elevation structure of the utility model;

figure 2 is a phi 22mm phi 25mm change buckle joint used with the utility model;

FIG. 3 is a phi 22mm phi 19mm buckle change joint used with the utility model;

FIG. 4 is a diagram showing a specific connection relationship of the embodiment;

fig. 5 is a schematic structural diagram of the utility model after the wellhead is plugged.

Description of reference numerals:

1. a clamp head; 2. blocking edges; 3. an annular clamp body; 4. an upper threaded joint; 5. a steel ring groove; 6. a rod body; 7. a lower threaded joint; 8. a buckle changing connector I; 9. a fastening joint II; 10. an elevator; 11. lifting the short section; 12. a sucker rod; 13. a wellhead valve; 14. a clamp skin; 15. and (4) bolts.

Detailed Description

It should be noted that the following description of the embodiments refers to the accompanying drawings, in which like numerals refer to the same or similar elements throughout the different views, unless otherwise specified.

The embodiments of the invention will be described in detail below with reference to fig. 1 to 5, but the invention can be implemented in many different ways as defined and covered by the claims.

It is also to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention, unless otherwise specified, and all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

Reference will now be made in detail to the embodiments of the present application, which are illustrated in the accompanying drawings 1 through 5, however, these embodiments may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, it being understood that these embodiments are provided for the purpose of making the present disclosure complete and fully convey the concept of the embodiments to those skilled in the art.

Referring to the attached drawings 1 to 5, the utility model provides a simple sucker rod blowout preventer, it includes the body of rod 6, the upper portion setting of the body of rod 6 is used for connecting the upper portion screwed joint 4 that promotes nipple joint 11, the lower part setting of the body of rod 6 is used for connecting the lower part screwed joint 7 of sucker rod 12, between upper portion screwed joint 4 and the lower part screwed joint 7 annular clamp body 3 is established to fixed cover on the body of rod 6, the fixed flange 2 that sets up of up end of annular clamp body 3, steel ring groove 5 is seted up to the lower terminal surface of annular clamp body 3, the outer fringe cover of annular clamp body 3 establishes clamp head 1.

According to the structure of this embodiment can discover, body of rod 6 actual action is equivalent to a short polished rod, it can with promote nipple joint 11 high-speed joint, and lift or transfer by elevator 10, the problem of the long not good knot of polished rod can effectively be solved to this embodiment, when the sucker rod in-process takes place the overflow, can save time robber the dress, avoid causing great loss, and the clamp head 1 at middle part is transferring the clamp junction to well head valve 13, use clamp skin 14 and bolt 15 can quick shutoff well head, eliminate the danger of losing the emergence that causes the accident in the well with sucker rod 12.

With reference to fig. 1 to 5, it further includes a buckle (buckle I8 and buckle II 9) screwed with the lower screw thread joint 7.

The variable buckle joint is a variable buckle joint II 9 with phi 22mm and phi 19 mm.

The variable buckle joint is a variable buckle joint I8 with the diameter of 22mm and the diameter of 25 mm.

In the above embodiment of the present invention, the lower threaded joint 7 is connected to the sucker rod 12 through the buckle-changing joint (buckle-changing joint I8 or buckle-changing joint II 9), because the model of the polished rod used at present is fixed, but the sucker rod has multiple buckles, therefore, to the buckle-changing joint (buckle-changing joint I8 and buckle-changing joint II 9) of two different models of phi 25mm and phi 19mm fit more commonly used, in the actual operation process, the worker can connect the proper buckle-changing joint (buckle-changing joint I8 or buckle-changing joint II 9) with the utility model, and then connect the sucker rod 12 by it.

The utility model discloses a have following step in concrete operation process:

firstly, refer to fig. 1 to 4, after washing, killing a well, play polished rod and prevent spouting the box in the well, remain former flow, at first play polished rod and well head valve 13 in the well upper portion include packing box, prevent spouting all subassemblies including the box, upper portion only remains can with this utility model complex valve connection clamp.

Secondly, referring to figure 1 to figure 4, this utility model of matched stack and sucker rod change joint make this utility model's lower part screwed joint 7 connect change joint I8 or change joint II 9 promptly, connect sucker rod 12 by becoming joint I8 or change joint II 9 for this utility model upper portion screwed joint 4 connects and promotes nipple joint 11, beats elevator 10 in the outer fringe that promotes nipple joint 11.

Thirdly, finally, refer to figure 1 to figure 5, when the overflow takes place for sucker rod 12 down, in time utilize this utility model to snatch the well head fast, shutoff well head upper portion realizes washing, killing the well operation on the basis of original procedure, transfers at sucker rod 12 promptly after for this utility model's clamp head 1 is connected with well head valve 13's clamp, and is fixed by clamp skin 14 and bolt 15.

It should also be noted that the utility model is suitable for a 250 type valve that the majority well head of victory oil field used, and this kind of valve is through clamp connection, but some oil fields still use threaded connection's valve at the well head that the pressure is less, and under this condition, this utility model middle part's clamp body 3 can be replaced by a plug.

The utility model discloses a have following economic benefits in practical application:

the utility model discloses a processing cost is about: 300 yuan/piece, the cost of processing 40 pieces is expected to be about: 40 300 yuan/one 12000 yuan, if purchase sucker rod preventer, every price is about 5 ten thousand yuan, 50000X40 is 2000000 yuan, it is visible, practice thrift the cost produce expense-input expense 200-1.2 be 198.8 (ten thousand yuan), it is visible, this utility model can also save manufacturing cost to a great extent.

The above only is the preferred embodiment of the utility model discloses, is not used for limiting the utility model discloses, to the technical personnel in this field, the utility model discloses can have multiple change and change, all according to the utility model discloses any modification, the equivalent transform etc. that technical scheme was done, the effect of its function and production does not surpass the utility model discloses a technical scheme's scope is all regarded as the utility model discloses a protection scope.

Claims (4)

1. The utility model provides a simple and easy sucker rod blowout preventer, it includes the body of rod, its characterized in that, the upper portion of the body of rod sets up the upper portion screwed joint who is used for connecting the promotion nipple joint, the lower part of the body of rod sets up the lower part screwed joint who is used for connecting the sucker rod, between upper portion screwed joint and the lower part screwed joint fixed cover is established on the body of rod and is equipped with annular clamp body, the fixed flange that sets up of up end of annular clamp body, the steel ring groove is seted up to the lower terminal surface of annular clamp body, the clamp head is established to the outer fringe cover of annular clamp body.

2. The simplified sucker rod blow out preventer of claim 1, further comprising a stab sub that threadably engages the lower threaded sub.

3. The simple sucker rod blowout preventer of claim 2, wherein the tapered joint is a 22mm x 19mm tapered joint.

4. The simple sucker rod blowout preventer of claim 3, wherein the tapered joint is a 22mm x 25mm tapered joint.

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