Connecting device

Abstract

The connecting device provided by the embodiment of the utility model comprises a first connecting piece, a flexible connecting piece and a second connecting piece, the first connecting piece and the second connecting piece are connected through a flexible connecting piece. According to the utility model, the two connecting pieces are connected through the flexible connecting piece, so that the flexibility and the corner amplitude between the two connecting pieces are increased.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model relates to the technical field of oil exploration, especially relates to a connecting device. BACKGROUND

[0002] With the production regulation years of oil fields being continuously extended, more and more oil fields in the middle and late stages of production have appeared in China. More and more oil fields have greatly reduced oil production rates, which cannot meet the demand for oil production. In addition, oil and gas resources in old oil fields are mostly in marginal oil and gas reservoirs, ultra-thin oil and gas reservoirs, and complex fault block oil and gas reservoirs, which are extremely difficult to exploit, prompting the development of complex well types such as displacement directional wells, cluster wells, horizontal wells, and three-dimensional structure wells. However, the maximum build-up rate that can be achieved by conventional rotary steerable drilling technology is generally not more than 15° / 30 meters, which cannot meet the application requirements of complex well types, resulting in poor development effect of oil and gas resources.

[0003] T-type drilling technology is a new type of drilling technology that uses specially designed flexible drilling tools to achieve a very high build-up rate, completes windowing, build-up, and horizontal drilling entirely within the oil layer, and drills along the strike of the oil layer. Because the trajectory profile resembles a "T", it is called T-type drilling technology. Compared with conventional sidetracking technology, T-type multi-lateral drilling technology has a small build-up radius, reduces the invalid footage, and reduces drilling costs. In addition, it can also increase the number of branches in the same oil layer, increase the drainage area, and effectively achieve efficient development of old oil fields. Therefore, specially designed flexible drilling tools are necessary equipment. CONTENT OF THE UTILITY MODEL

[0004] In order to be able to prepare specially designed flexible drilling tools, the utility model prepares specially designed flexible connecting pieces, uses the flexible connecting pieces to connect the components of the drilling tool, and realizes the flexibility of the drilling tool. The specific technical scheme is as follows:

[0005] The utility model embodiment provides a connecting device, which comprises: a first connecting piece 1, a flexible connecting piece 0 and a second connecting piece 2, the first connecting piece 1 and the second connecting piece 2 are connected through the flexible connecting piece 0.

[0006] Further, the first connecting piece 1 or the second connecting piece 2 is electrically connected with the flexible connecting piece 0 through an electrical connector.

[0007] Further, the electrical connector adopts a male and female connector in a plug-in form.

[0008] Further, the flexible connecting piece 0 comprises a skin bag 00 and a first electrical connector 01 and a second electrical connector 02 arranged at both ends of the skin bag respectively, and the first electrical connector 01 or the second electrical connector 02 is fixedly connected with the skin bag 00 through a connecting sleeve 03.

[0009] Further, the corresponding pins of the first electric connector 01 and the second electric connector 02 are electrically connected through wires, and the wires pass through the inside of the skin bag 00.

[0010] Further, an outer thread 04 is arranged on the connecting sleeve 03, and the outer thread 04 is mechanically connected with the corresponding inner thread arranged on the first connecting piece 1 or the second connecting piece 2.

[0011] Further, the connecting ring 3 is further included; the connecting ring 3 is fixedly installed on the connecting sleeve 03.

[0012] Further, the connecting ring 3 includes symmetrically arranged first half rings and second half rings; the first half rings and the second half rings are fixedly connected through screw nut assemblies.

[0013] Further, the rubber ring is further included; a special groove is arranged on the connecting sleeve 03 and used for placing the rubber ring with a corresponding size.

[0014] Further, the fastening hole 05 is further arranged on the connecting ring 3.

[0015] The utility model discloses a connecting device, including first connecting piece, flexible connecting piece and second connecting piece, first connecting piece and second connecting piece are connected through flexible connecting piece, the utility model discloses through the flexible connecting piece of setting and connect two connecting pieces, and the flexibility and corner amplitude between two connecting pieces are increased.

[0016] Further, the first connecting piece or the second connecting piece of the utility model is electrically connected with the flexible connecting piece through an electric connector, so that the first connecting piece and the second connecting piece are directly connected through wires, the problem that the flying wire is loose, difficult to manage and easy to fall off is effectively avoided.

[0017] Further, the flexible connecting piece of the utility model includes a skin bag, first connectors and second connectors arranged at two ends of the skin bag respectively and a connecting sleeve; one end of the connecting sleeve is connected with the first connector or the second connector, and the other end is embedded into the skin bag to fixedly realize the flexibility of the connecting piece.

[0018] Further, the corresponding pins of the first connector or the second connector at two ends of the flexible connecting piece of the utility model are electrically connected through wires passing through the inside of the skin bag, so that the flexible connection between the connectors is ensured, and the wires are prevented from being directly exposed outside to cause damage to electrical properties.

[0019] Further, an outer thread is arranged on the connecting sleeve of the utility model, the electric connector of the flexible connecting piece is inserted into the first connecting piece or the second connecting piece, and the electric connector is preliminarily electrically connected with a matched electric connector, and then the outer thread on the connecting sleeve is mechanically connected with the first connecting piece or the second connecting piece; it is ensured that the flexible connecting piece can be firmly connected with the first connecting piece or the second connecting piece.

[0020] Further, the utility model still sets up the connecting ring, this connecting ring is fixedly installed on the connecting sleeve through screw, can drive the external thread on the connecting sleeve rotation through the fastening hole set up on the connecting ring, further fasten the connection between flexible connecting piece and first connecting piece or second connecting piece.

[0021] Further, the utility model still sets up the connecting ring, this connecting ring is fixedly installed on the connecting sleeve through screw, can drive the external thread on the connecting sleeve rotation through the fastening hole set up on the connecting ring, further fasten the connection between flexible connecting piece and first connecting piece or second connecting piece. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the structure schematic view of connecting device provided by the utility model embodiment,

[0023] Figure 2 It is the structure schematic view of flexible connecting piece provided by the utility model embodiment,

[0024] Figure 3 It is the cross section view of flexible connecting piece provided by the utility model embodiment.

[0025] In the drawing: 0-flexible connecting piece;1-first connecting piece;2-second connecting piece;00-bag;01-first connector;02-second connector;03-connecting sleeve;04-external thread;3-connecting ring;05-fastening hole. DETAILED DESCRIPTION

[0026] The technical scheme in the utility model embodiment will be described clearly and completely below, obviously, the described embodiment only is a part of the utility model embodiment, is not all the embodiment. Based on the embodiment in the utility model, all other embodiments that the person skilled in the art obtains without doing the creative labor belong to the range of the utility model protection.

[0027] See Figures 1-3 , Figure 1 It is the structure schematic view of connecting device provided by the utility model embodiment, Figure 2 It is the structure schematic view of flexible connecting piece provided by the utility model embodiment, Figure 3 It is the cross section view of flexible connecting piece provided by the utility model embodiment. Figure 1The utility model discloses a connecting device, including: first connecting piece 1, flexible connecting piece 0 and second connecting piece 2, first connecting piece 1 with second connecting piece 2 are connected through flexible connecting piece 0, the utility model discloses a connecting device, including first connecting piece, flexible connecting piece and second connecting piece, and first connecting piece and second connecting piece are connected through flexible connecting piece, the utility model connects two connecting components through the flexible connecting piece that sets up, and the flexibility and corner amplitude between two connecting components are increased.

[0028] Preferably, the first connecting piece and the second connecting piece of the utility model are respectively connected with the flexible connecting piece 0 through the male and female connectors in the form of plug-in. The male and female connectors in the form of plug-in are used to avoid the connection between the flexible connecting piece and the first connecting piece or the second connecting piece through wires, reduce the problem of overall volume increase caused by flying wires and the influence of electrical property damage.

[0029] See Figures 2-3 The flexible connecting piece 0 includes a skin bag 00, a first electric connector 01 and a second electric connector 02 arranged at two ends of the skin bag respectively, and the first electric connector 01 or the second electric connector 02 is fixedly connected with the skin bag 00 through a connecting sleeve 03. The flexible connecting piece includes a skin bag, a first electric connector and a second electric connector arranged at two ends of the skin bag respectively, and a connecting sleeve. One end of the connecting sleeve is connected with the first electric connector or the second electric connector, and the other end is embedded into the skin bag to realize the flexibility of the connecting piece.

[0030] The corresponding pins of the first electric connector 01 and the second electric connector 02 are electrically connected through wires, and the wires pass through the inside of the skin bag 00. The corresponding pins of the first electric connector or the second electric connector at two ends of the flexible connecting piece are electrically connected through wires passing through the inside of the skin bag, which ensures the flexible connection between the connectors and avoids the direct exposure of the wires to cause the damage of electrical properties.

[0031] The first connecting piece 1 or the second connecting piece 2 is provided with an inner thread at both ends, and the port diameter of the first connecting piece 1 or the second connecting piece 2 is larger than the diameter of the electric connector at both ends of the flexible connecting piece. The connecting sleeve 03 is provided with an outer thread 04, which is mechanically connected with the corresponding inner thread of the first connecting piece 1 or the second connecting piece 2. In actual operation, the electric connector end of the flexible connecting piece is inserted into the first connecting piece 1 or the second connecting piece 2 and is electrically connected with the inner electric connector, and then the inner thread in the first connecting piece 1 or the second connecting piece 2 is rotated and mechanically connected with the outer thread on the flexible connecting piece. The connecting sleeve provided in the utility model is provided with an outer thread, and after the electric connector of the flexible connecting piece is inserted into the first connecting piece or the second connecting piece and is preliminarily electrically connected with the matched electric connector, the outer thread on the connecting sleeve is mechanically connected with the first connecting piece or the second connecting piece; and the flexible connecting piece can be firmly connected with the first connecting piece or the second connecting piece.

[0032] In order to further reinforce the connection between the flexible connecting piece and the first connecting piece 1 or the second connecting piece 2, the utility model also includes a connecting ring 3, which is fixedly installed on the connecting sleeve 03. The electric connector is connected, and then the mechanical connection is reinforced through threaded connection; and then the further reinforcement of the connecting ring is combined, so that the connection between the flexible connecting piece and the first connecting piece 1 or the second connecting piece 2 is further reinforced.

[0033] Preferably, the connecting ring 3 includes a first half ring and a second half ring which are symmetrically arranged; the first half ring and the second half ring are fixedly connected through a screw nut assembly; and the installation is facilitated.

[0034] Preferably, the connecting ring 3 is also provided with a fastening hole 05. The utility model also includes a connecting ring which is fixedly installed on the connecting sleeve through a screw, and the outer thread on the connecting sleeve can be rotated through the fastening hole arranged on the connecting ring, so that the connection between the flexible connecting piece and the first connecting piece 1 or the second connecting piece 2 is further fastened.

[0035] In the optional implementation manner of the utility model embodiment, a rubber ring is also included; and a special groove is arranged on the connecting sleeve 03 and used for placing a rubber ring with a corresponding size. The connecting sleeve of the utility model is also provided with a special groove for placing an O-shaped rubber ring, and the O-shaped rubber ring is arranged to increase the sliding friction force between the flexible connecting piece and the first connecting piece or the second connecting piece, so that the connection between them is further fastened.

[0036] Although the utility model has been described in detail above with general description and specific embodiments, some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the utility model all belong to the range of protection required by the utility model.

Claims

1. A connection device, characterized in that The utility model relates to a kind of flexible connection device, including: First connecting piece (1), flexible connecting piece (0) and second connecting piece (2); The first connecting piece (1) and the second connecting piece (2) are connected by the flexible connecting piece (0);The flexible connecting piece (0) includes: skin bag (00), first electric connector (01) and second electric connector (02) respectively arranged at both ends of the skin bag, connecting sleeve (03);The first electric connector (01) or the second electric connector (02) is fixedly connected with the skin bag (00) by connecting sleeve (03) respectively.

2. The connection device according to claim 1, characterized in that The first connecting piece (1) or the second connecting piece (2) is electrically connected with the flexible connecting piece (0) by electric connector.

3. The connection device according to claim 2, characterized in that The electric connector adopts male and female connector in plug-in form.

4. The connection device of claim 1, wherein The first electric connector (01) and the second electric connector (02) are electrically connected by wire, and the wire passes through the inside of the skin bag (00).

5. The connection device of claim 1, wherein External thread (04) is arranged on the connecting sleeve (03), and the external thread (04) is mechanically connected with the internal thread corresponding to the first connecting piece (1) or the second connecting piece (2).

6. The connection device of claim 1, wherein It further includes connecting ring (3);The connecting ring (3) is fixedly installed on the connecting sleeve (03).

7. The connection device according to claim 6, characterized in that The connecting ring (3) includes symmetrically arranged first half ring and second half ring;The first half ring and second half ring are fixedly connected by screw nut assembly.

8. The connection device of claim 1, wherein It further includes rubber O-ring;Groove is arranged on the connecting sleeve (03) for placing rubber O-ring of corresponding size.

9. The connection device of claim 6, wherein, Fastening hole (05) is further arranged on the connecting ring (3).

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