CN208473729U - For the attachment device between pumping rod made by steel and carbon fiber sucker rod - Google Patents

Abstract

The utility model discloses a kind of attachment devices between pumping rod made by steel and carbon fiber sucker rod, it is related to oil well Lifting Technique field in petroleum production engineering, it include: the ontology extended along axis, there is the first aperture and the second aperture in the axial direction in ontology, first aperture is connected with the second aperture, the internal diameter of first aperture is offered multiple sliding slots on the inner wall of the first aperture, is offered annular groove on the inner wall of the second aperture from increasing far from the second opening direction to close to the second opening direction；Clamping piece in the sliding slot of first aperture is set, and clamping piece can slide in sliding slot, and clamping piece is for clamping carbon fiber sucker rod；The locating part that can be moved in the second aperture, locating part can resist clamping piece；Snap in annular groove is set, and snap can resist locating part end.The application can be improved the application range of pumping rod made by steel and carbon fibre pumping rod, to improve lower-continuous mapping, and then improve the efficiency of oil well pump.

Description

For the attachment device between pumping rod made by steel and carbon fiber sucker rod

Technical field

The utility model relates to oil well Lifting Technique field in petroleum production engineering, in particular to it is a kind of for pumping rod made by steel with Attachment device between carbon fiber sucker rod.

Background technique

With being continuously increased for oil well depth, the load of pumping unit is also continuously increased, and which has limited the lower-continuous mappings of oil well. In general, the sucker rod of traditional pumping unit mainly uses pumping rod made by steel, the heavier-weight of pumping rod made by steel, due to pumping unit Model limit its load, in a disguised form limit the length of pumping rod made by steel, and then limit the lower-continuous mapping of oil well pump, This has negative interaction to the efficiency for improving oil well pump.

In order to reduce the load to pumping unit, hollow stem or glass reinforced plastic pumping rod can be used, but due to hollow stem and glass Steel pumping rod itself has unfavorable factor, therefore limits the application range and scale of the two.Its various aspects of carbon fibre pumping rod Can be more superior, but its density is smaller, keeps it larger by buoyancy effect during going into the well, and then also limits its application range And scale.

Utility model content

In order to overcome the drawbacks described above of the prior art, the technical problem to be solved is that provide for the utility model embodiment A kind of attachment device between pumping rod made by steel and carbon fiber sucker rod, can be improved pumping rod made by steel and carbon fiber The application range of sucker rod to improve lower-continuous mapping, and then improves the efficiency of oil well pump.

The specific technical solution of the utility model embodiment is:

A kind of attachment device between pumping rod made by steel and carbon fiber sucker rod, comprising:

The ontology extended along axis, has the first aperture and the second aperture along the ontology in the axial direction, and described first Aperture is connected with second aperture, the internal diameter of first aperture from far from second opening direction to close to described the Two opening directions increase, and offer multiple sliding slots on the inner wall of first aperture, offer on the inner wall of second aperture Annular groove；

Clamping piece in the sliding slot of first aperture is set, and the clamping piece can slide in the sliding slot so that not Change with the spacing between clamping piece, the clamping piece is for clamping carbon fiber sucker rod；

The locating part that can be moved in second aperture, the locating part can resist the clamping piece so that the folder Gripping member clamps the carbon fiber sucker rod；

Snap in the annular groove is set, and the snap can resist the end of the locating part.

In a preferred embodiment, internal screw thread is offered on the inner wall of second aperture, the locating part External screw thread is offered on side wall, the locating part is screwed into second aperture.

In a preferred embodiment, the clamping piece has the holding section matched with the sliding slot.

In a preferred embodiment, the sliding slot is three, and the circumferencial direction along first aperture is distributed.

In a preferred embodiment, the end face of the clamping piece towards the axis of the ontology is in arc-shaped.

In a preferred embodiment, the clamping piece is towards having pawl on the end face of the axis of the ontology.

In a preferred embodiment, one end that the ontology is located at second aperture is offered for connecting steel The external screw thread of sucker rod processed.

In a preferred embodiment, the snap has guide part far from one end of first aperture.

In a preferred embodiment, the locating part has far from one end of first aperture for being screwed into Embedded division.

In a preferred embodiment, the sliding slot extends along the axis direction of the ontology.

A kind of sucker rod, the sucker rod include: that any of the above-described described such as is taken out for pumping rod made by steel and carbon fiber system Attachment device between beam hanger；The carbon fiber sucker rod being inserted between the clamping piece；It is connected to described the of the ontology The pumping rod made by steel of two aperture one end.

In a preferred embodiment, the pumping rod made by steel includes solid sucker rod and/or hollow rod.

The technical solution of the utility model have it is following significant the utility model has the advantages that

It can be realized the connection between pumping rod made by steel and carbon fibre pumping rod by the attachment device in the application, thus Realize the optimum organization of the two.Sucker rod under the two combination can guarantee that carbon fibre pumping rod can smoothly go into the well, simultaneously The quality of sucker rod entirety is reduced again, that is, reduces the load of pumping unit, and then ensure that lower-continuous mapping, to improve pump Efficiency, also further improve the rate of withdrawal of crude oil.

Referring to following description and accompanying drawings, the particular implementation of the utility model is disclosed in detail, specifies practical Novel principle can be in a manner of adopted.It should be understood that the embodiments of the present invention in range not thus by Limitation.In the range of the spirit and terms of appended claims, the embodiments of the present invention includes many changes, modifications With it is equivalent.The feature for describing and/or showing for a kind of embodiment can be in a manner of same or similar one or more It uses in a other embodiment, is combined with the feature in other embodiment, or the feature in substitution other embodiment.

Detailed description of the invention

Attached drawing described here is only used for task of explanation, and is not intended to limit in any way disclosed by the utility model Range.In addition, shape and proportional sizes of each component in figure etc. are only schematically, to be used to help the reason to the utility model Solution is not the specific shape and proportional sizes for limiting each component of the utility model.Those skilled in the art is practical new at this Under the introduction of type, various possible shapes and proportional sizes can be selected to implement the utility model as the case may be.

Fig. 1 is in the utility model embodiment for the attachment device between pumping rod made by steel and carbon fiber sucker rod Structural schematic diagram；

Fig. 2 is the structural schematic diagram of the ontology in the utility model embodiment with snap；

Fig. 3 be Fig. 2 in A-A to sectional view；

Fig. 4 is the top view of clamping piece in the utility model embodiment；

Fig. 5 is the front view of clamping piece in the utility model embodiment；

Fig. 6 is the schematic diagram that clamping piece clamps carbon fiber sucker rod in the utility model embodiment.

The appended drawing reference of the figures above:

1, carbon fiber sucker rod；2, ontology；21, the first aperture；22, the second aperture；23, sliding slot；24, annular groove；3, Clamping piece；31, holding section；32, pawl；4, locating part；41, embedded division；5, snap；51, guide part.

Specific embodiment

In conjunction with the description of attached drawing and specific embodiment of the present invention, the utility model can be clearly understood Details.But specific embodiment of the present utility model described herein, it is only used for explaining the purpose of this utility model, without It can be understood as being limitations of the present invention in any way.Under the introduction of the utility model, technical staff is contemplated that Any possible deformation based on the utility model, these are regarded as belonging to the scope of the utility model.It needs to illustrate It is that when element is referred to as " being set to " another element, it can directly on the other element or there may also be placed in the middle Element.When an element is considered as " connection " another element, it can be directly to another element or can Centering elements can be existed simultaneously.Term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be mechanical connection or Electrical connection, the connection being also possible to inside two elements can be directly connected, can also indirectly connected through an intermediary, For the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.Made herein Term " vertical ", " horizontal ", "upper", "lower", "left", "right" and similar statement simply to illustrate that mesh , it is not meant to be the only embodiment.

Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein The purpose of the embodiment of body, it is not intended that in limitation the application.Term as used herein "and/or" includes one or more Any and all combinations of relevant listed item.

In order to improve the application range of pumping rod made by steel and carbon fibre pumping rod, to improve lower-continuous mapping, Jin Erti The efficiency of high oil well pump proposes a kind of connection dress between pumping rod made by steel and carbon fiber sucker rod in this application It sets, Fig. 1 is in the utility model snap embodiment for the attachment device between pumping rod made by steel and carbon fiber sucker rod Structural schematic diagram, as shown in Figure 1, the attachment device being used between pumping rod made by steel and carbon fiber sucker rod may include: The ontology 2 extended along axis, has the first aperture 21 and the second aperture 22 along ontology 2 in the axial direction, the first aperture 21 and the Two apertures 22 are connected, and the internal diameter of the first aperture 21 increases from separate second aperture, 22 direction to close to 22 direction of the second aperture, Multiple sliding slots 23 are offered on the inner wall of first aperture 21, offer annular groove 24 on the inner wall of the second aperture 22；Setting is the Clamping piece 3 in the sliding slot 23 of one aperture 21, clamping piece 3 can slide the spacing so that between different clamping pieces 3 in sliding slot 23 Change, clamping piece 3 is for clamping carbon fiber sucker rod 1；The locating part 4 that can be moved in the second aperture 22, locating part 4 can Clamping piece 3 is resisted so that clamping piece 3 clamps carbon fiber sucker rod 1；Snap 5 in annular groove 24 is set, and snap 5 can support Firmly 4 end of locating part.

When using the attachment device connection pumping rod made by steel in the application with carbon fiber sucker rod, first by clamping piece 3 It is inserted into the sliding slot 23 of 21 inner wall of the first aperture, it is made to drop down onto bottom in the first aperture 21.Then by carbon fibre pumping rod It is inserted into the first aperture 21 in ontology 2, such as Fig. 1.Further, locating part 4 is filled in the second aperture 22 of ontology 2, Keep locating part 4 mobile to 21 direction of the first aperture.When locating part 4 is moved to 24 position of annular groove, locating part 4 pushes snap 5 It enters inside annular groove 24, when locating part 4 is in contact with carbon fibre pumping rod, clamping piece 3, locating part 4 pushes carbon fiber Sucker rod, clamping piece 3 move upwards.Since the internal diameter of the first aperture 21 is from separate second aperture, 22 direction to close to the second aperture 22 directions increase, therefore smaller, the phase interaction between clamping piece 3 and carbon fibre pumping rod that the distance between more clamps up part 3 Firmly bigger, such clamping piece 3 can clamp carbon fiber sucker rod 1.When locating part 4 is moved across snap 5, reach at this time Design position reaches the state that ontology 2 is securely connect with carbon fibre pumping rod.At this point, snap 5 is not due to having locating part 4 Stop, it is protruding and be restored to initial position.At the same time, since snap 5 resists the end of locating part 4,4 nothing of locating part Method moves downward, and has achieved the purpose that locating part 4 is locking through the above way, locating part 4 can resist always carbon fibre pumping rod, Clamping piece 3, so that clamping piece 3 clamps carbon fiber sucker rod 1 always.And one end that ontology 2 is located at the second aperture 22 is then used for Connect pumping rod made by steel.

It can be realized the connection between pumping rod made by steel and carbon fiber sucker rod by the attachment device in the application, from And realize the optimum organization of the two.Sucker rod under the two combination can guarantee that carbon fiber sucker rod can smoothly go into the well, The quality for reducing sucker rod entirety again simultaneously, that is, reduce the load of pumping unit, and then ensure that lower-continuous mapping, to improve The efficiency of pump, also further improves the rate of withdrawal of crude oil.

In order to better understand the connection being used between pumping rod made by steel and carbon fiber sucker rod in the application Device will be further explained and illustrate to it below.Fig. 2 is the knot of the ontology 2 in the utility model embodiment with snap 5 Structure schematic diagram, as shown in Figure 1 and Figure 2, ontology 2 extend along axis, have the first aperture 21 and second in ontology 2 in the axial direction Aperture 22, the first aperture 21 are connected with the second aperture 22.The axis of first aperture 21 and the axis of the second aperture 22 can be with bases This is in same straight line.Step can be set in the connectivity part of first aperture 21 and the second aperture 22, which can be used for resisting Clamping piece 3.

Fig. 3 be Fig. 2 in A-A to sectional view, as shown in figure 3, the cross section of the first aperture 21 can be rounded, first is opened The internal diameter in hole 21 far from 22 direction of the second aperture to close to 22 direction of the second aperture from increasing.By the above-mentioned means, being opened first Multiple sliding slots 23 can be offered on the inner wall in hole 21, which extends along the axis direction along ontology 2, what sliding slot 23 was formed The axis direction of straight line line and ontology 2 has certain angle, in this way, when clamping piece 3 slides in sliding slot 23, clamping piece 3 The distance between can change, and then carbon fiber sucker rod 1 can be clamped.In present embodiment mode, sliding slot 23 It is three, the circumferencial direction along the first aperture 21 is distributed, and the angle between adjacent sliding slot 23 is 120 degree.

As depicted in figs. 1 and 2, the second aperture 22 can be the aperture of first-class internal diameter, open on the inner wall of the second aperture 22 Equipped with annular groove 24, which is positioned close to one end of the first aperture 21.The annular groove 24 is for being arranged snap 5.

As depicted in figs. 1 and 2, one end that ontology 2 is located at the second aperture 22 is offered for connecting the outer of pumping rod made by steel Screw thread.There is a protrusion on the side wall of ontology 2, when the external screw thread of 2 outer wall of ontology is screwed into pumping rod made by steel, which can be with The pumping rod made by steel being screwed into is resisted, pumping rod made by steel is prevented to be screwed into excessively.The pumping rod made by steel being screwed into may include solid pumping Beam hanger and/or hollow rod.

Fig. 4 is the top view of clamping piece in the utility model embodiment, and Fig. 5 is clamping piece in the utility model embodiment Front view, as shown in Figure 4 and Figure 5, clamping piece 3 are arranged in the sliding slot 23 of the first aperture 21, specifically, clamping piece 3 has The holding section 31 matched with sliding slot 23, which is embedded in the sliding slot 23 of the first aperture 21, so that 3 energy of clamping piece It is slided in sliding slot 23.Since the internal diameter of the first aperture 21 far from 22 direction of the second aperture to close to 22 direction of the second aperture from increasing Add, therefore, when sliding when clamping piece 3 to one end close to the second aperture 22, the spacing between different clamping pieces 3 increases；Work as folder When gripping member 3 is slided to one end far from the second aperture 22, the spacing between different clamping pieces 3 reduces.By the above-mentioned means, Fig. 6 The schematic diagram that carbon fiber sucker rod 1 is clamped for clamping piece 3 in the utility model embodiment, as shown in fig. 6, being leaned in clamping piece 3 When one end of nearly second aperture 22, carbon fiber sucker rod 1 be can be inserted to the clamping piece 3 of the first aperture 21, clamped Part 3 far from the second aperture 22 one end when, clamping piece 3 can be tightened to clamp carbon fiber sucker rod 1.

As shown in Figure 4 and Figure 5, it in order to increase the frictional force between clamping piece 3 and carbon fiber sucker rod, prevents from pressing from both sides Skidding between gripping member 3 and carbon fiber sucker rod 1 causes carbon fiber sucker rod 1 to be detached from clamping piece 3, and clamping piece 3 is towards ontology 2 Axis end face be in arc-shaped, in this way, preferably be bonded between clamping piece 3 and carbon fiber sucker rod 1.Separately Outside, clamping piece 3 is towards having pawl 32 on the end face of the axis of ontology 2, and the pawl 32 is towards one end of the second aperture 22.

As depicted in figs. 1 and 2, locating part 4 can extend into the second aperture 22, meanwhile, locating part 4 can be opened along second It is moved in hole 22.In a kind of feasible embodiment, internal screw thread is offered on the inner wall of the second aperture 22, locating part 4 External screw thread is offered on side wall, locating part 4 is screwed into the second aperture 22, by rotary spacing part 4 to realize that locating part 4 is opened second It is moved in hole 22.For the ease of twisting locating part 4, locating part 4 has far from one end of the first aperture 21 for being screwed into Embedded division 41.For example, embedded division 41 can be in a word or cross.

As depicted in figs. 1 and 2, snap 5 is arranged in annular groove 24, when locating part 4 slides at the first aperture 21, resists Clamping piece 3 so that clamping piece 3 to away from 22 direction of the second aperture is mobile clamp carbon fiber sucker rod to lock when, snap 5 For resisting the end of locating part 4, so that locating part 4 can not move downward.It is anti-locating part 4 has been reached through the above way The purpose of pine, locating part 4 can resist carbon fiber sucker rod, clamping piece 3 always, so that clamping piece 3 clamps carbon fiber system always Sucker rod 1.

As depicted in figs. 1 and 2, in order to make locating part 4 conveniently be moved across snap 5, snap 5 is far from One end of one aperture 21 has guide part 51.The guide part 51 can be of an inclined plane, and so be moved to snap 5 in locating part 4 When setting, snap 5 can easily collapse into annular groove 24 under the action of guide part 51, be moved through ring completely to locating part 4 After shape slot 24, snap 5 stretches out again, to resist the end of locating part 4.

The company that the application is suitable for pumping rod made by steel and is not suitable between the rod piece of the connection types such as screw thread, welding connection It connects, joint connection in site is easy to operate, is conducive to promote and apply.

Also proposed a kind of sucker rod in this application, sucker rod include: as it is any of the above-described for pumping rod made by steel with Attachment device between carbon fiber sucker rod；The carbon fiber sucker rod 1 being inserted between clamping piece 3；It is connected to the of ontology 2 The pumping rod made by steel of two apertures, 22 one end.Pumping rod made by steel may include solid sucker rod and/or hollow rod etc..

Above-mentioned each embodiment in this specification is described in a progressive manner, identical between each embodiment Similar portion is cross-referenced, and what each embodiment stressed is and other embodiments difference.It discloses All articles and reference, including patent application and publication are hereby incorporated by by quoting for various purposes.Description combination Term " substantially by ... constitute " should include identified element, ingredient, component or step and essentially without influence should Other elements, ingredient, component or the step of combined basic novel feature.It is described here using term "comprising" or " comprising " Element, ingredient, component or step combination it is also contemplated that the implementation being made of substantially these elements, ingredient, component or step Mode.Here by using term " can with ", it is intended to which the described any attribute for illustrating that " can with " includes all is optional.It is more A element, ingredient, component or step can be provided by single integrated component, ingredient, component or step.Alternatively, single collection Multiple element, ingredient, component or the step of separation can be divided at element, ingredient, component or step.For describe element, The open "a" or "an" of ingredient, component or step is not said to exclude other elements, ingredient, component or step.

The foregoing is merely several embodiments of the utility model, although embodiment disclosed by the utility model is such as On, but the content is only to facilitate the embodiment for understanding the utility model and using, it is practical new to be not intended to limit this Type.Any those skilled in the art of the present invention are not departing from spirit and scope disclosed by the utility model Under the premise of, any modification and variation, but the patent of the utility model can be made in the formal and details of embodiment Protection scope must be still subject to the scope defined in the appended claims.

Claims (12)

1. a kind of attachment device between pumping rod made by steel and carbon fiber sucker rod characterized by comprising

There is the first aperture and the second aperture, first aperture in the axial direction along the ontology of axis extension, the ontology It is connected with second aperture, the internal diameter of first aperture far from second opening direction to close to described second from opening Hole direction increases, and offers multiple sliding slots on the inner wall of first aperture, offers annular on the inner wall of second aperture Slot；

Clamping piece in the sliding slot of first aperture is set, and the clamping piece can slide in the sliding slot so that different press from both sides Spacing between gripping member changes, and the clamping piece is for clamping carbon fiber sucker rod；

The locating part that can be moved in second aperture, the locating part can resist the clamping piece so that the clamping piece Clamp the carbon fiber sucker rod；

Snap in the annular groove is set, and the snap can resist the end of the locating part.

2. the attachment device according to claim 1 between pumping rod made by steel and carbon fiber sucker rod, feature It is, internal screw thread is offered on the inner wall of second aperture, external screw thread, the limit is offered on the side wall of the locating part Part is screwed into second aperture.

3. the attachment device according to claim 1 between pumping rod made by steel and carbon fiber sucker rod, feature It is, the clamping piece has the holding section matched with the sliding slot.

4. the attachment device according to claim 1 between pumping rod made by steel and carbon fiber sucker rod, feature It is, the sliding slot is three, and the circumferencial direction along first aperture is distributed.

5. the attachment device according to claim 1 between pumping rod made by steel and carbon fiber sucker rod, feature It is, the end face of the clamping piece towards the axis of the ontology is in arc-shaped.

6. the attachment device according to claim 1 between pumping rod made by steel and carbon fiber sucker rod, feature It is, the clamping piece is towards having pawl on the end face of the axis of the ontology.

7. the attachment device according to claim 1 between pumping rod made by steel and carbon fiber sucker rod, feature It is, one end that the ontology is located at second aperture offers the external screw thread for connecting pumping rod made by steel.

8. the attachment device according to claim 1 between pumping rod made by steel and carbon fiber sucker rod, feature It is, the snap has guide part far from one end of first aperture.

9. the attachment device according to claim 1 between pumping rod made by steel and carbon fiber sucker rod, feature It is, the locating part has the embedded division for being screwed into far from one end of first aperture.

10. the attachment device according to claim 1 between pumping rod made by steel and carbon fiber sucker rod, feature It is, the sliding slot extends along the axis direction of the ontology.

11. a kind of sucker rod, which is characterized in that the sucker rod includes: as described in any in claims 1 to 10 for steel Attachment device between sucker rod and carbon fiber sucker rod processed；The carbon fiber sucker rod being inserted between the clamping piece；Even Connect the pumping rod made by steel in second aperture one end of the ontology.

12. sucker rod according to claim 11, which is characterized in that the pumping rod made by steel include solid sucker rod and/ Or hollow rod.