CN208347738U - Tube apparatus of trapping is bored convenient for being sent into the sea batch of surface pipe - Google Patents

Abstract

The utility model discloses the sea batch brill tube apparatus of trapping convenient for being sent into surface pipe, including concentric reducer, drilling rod female thread is set in the small head end of concentric reducer, the casing pin thread outwardly protruded is arranged in the bottom of stub end, sleeve covers outside concentric reducer, the internal diameter of sleeve is equal to the outer diameter of concentric reducer stub end, is connected through a screw thread between sleeve and the stub end of concentric reducer, and casing pin thread protrudes outside sleeve；Circumferentially hinged several support rods, every support rod all have the first groove to match, the second groove for concentric reducer outer surface；First groove is arranged in size head surface, and support rod can be accommodated into the first groove；Second groove is arranged in sleeve lining, and the separate one end with the hinge joint of concentric reducer of support rod can be placed in the second groove.The utility model takes time and effort to solve the problems, such as to connect concentric reducer in the prior art, inefficiency, realizes the purpose that completion concentric reducer rapidly and efficiently is connect between casing, drilling rod.

Description

Tube apparatus of trapping is bored convenient for being sent into the sea batch of surface pipe

Technical field

The utility model relates to offshore platform drilling applications, and in particular to bore under use convenient for being sent into the sea batch of surface pipe Bushing installation.

Background technique

Well cementation is directed to tripping in casing in well, and makees to the construction of the annular space injection cement between wellbore and casing Industry.It is an indispensable important link during being drilled well operations, it includes setting of casing and cementing.Cementing technology is more The comprehensive application technology of subject has the characteristics that systematicness, disposable and time are short.The main purpose of well cementation is protection and support Casing in oil/gas well, the stratum such as packing oil, gas and water.For offshore drilling engineering, since engineering department leads in erection Riser pipe will be hammered when pipe support and enters mud, therefore unlike Terrestrial casing, surface pipe in offshore drilling engineering It is tripping in riser pipe.Meanwhile domestic each offshore oilfield advocates " excellent fast " work pattern energetically at present, for surface layer For one opens operation, after work pattern is tripping in surface pipe, ring flat-plate is set on riser pipe in well head chain-wales seat, is being covered Pipe top connects concentric reducer, carries out variable buckle by concentric reducer, connect with drilling rod, thoroughly sent surface pipe later by drilling rod To well head chain-wales, the casing coupling of the top is placed on ring flat-plate and is carried, dismantled from the box cupling on ring flat-plate later Surface pipe, cantilever beam and derrick location that drilling platforms can be adjusted carry out the operation of next well, while small flat in well head Platform carries out surface casing cementing operation using Simple cement head, to realize a large amount of savings of duration.In the process, concentric reducer be must An indispensable tool, function are the connections realized between casing and drilling rod.Existing concentric reducer is all that lower end is big, upper end Small, being convenient for lower end connecting sleeve, upper end jointed rod, therefore existing concentric reducer all is in the structure of approximately conical shape, this just leads Caused all to be inconvenient clamping concentric reducer no matter using drilling well tong or casing tong, so as to cause concentric reducer both ends respectively with Casing and drilling rod be all inconvenient when button connection, it is often necessary to and it takes considerable time and is adjusted at the scene, it can It realizes and is detained in the stabilization between concentric reducer and casing, drilling rod, seriously affect the operating efficiency that surface layer batch is bored.

Utility model content

The purpose of this utility model is to provide the sea batch brill tube apparatus of trapping convenient for being sent into surface pipe, to solve In the prior art connection concentric reducer take time and effort, inefficiency the problem of, realize completion concentric reducer rapidly and efficiently and casing, bore The purpose of connection between bar.

The utility model is achieved through the following technical solutions:

Tube apparatus of trapping is bored convenient for being sent into the sea batch of surface pipe, including concentric reducer, the lower end of the concentric reducer are Stub end, upper end are small head end, and drilling rod female thread is arranged in the small head end, and the set outwardly protruded is arranged in the bottom of the stub end Pipe pin thread further includes the sleeve of annular, and the sleeve is detachably connected by two semicircular rings, and the sleeve is covered in concentric reducer Outside, the internal diameter of sleeve is equal to the outer diameter of concentric reducer stub end, is connected through a screw thread between sleeve and the stub end of concentric reducer, described Casing pin thread protrudes outside sleeve；Circumferentially hinged several support rods, every support rod all have phase for the concentric reducer outer surface Matched first groove, the second groove；First groove is arranged in size head surface, and support rod can be accommodated into the first groove In；Second groove is arranged in sleeve lining, and the separate one end with the hinge joint of concentric reducer of the support rod can be placed at In second groove.

Taken time and effort connection concentric reducer in the prior art, inefficiency aiming at the problem that, the utility model proposes convenient for sending Tube apparatus of trapping is bored at the sea batch for entering surface pipe, this tool includes existing size header structure, wherein concentric reducer it is upper, Lower both ends are respectively small head end, stub end, wherein small head end with drilling rod bottom for connecting, therefore in small head end, setting drilling rod is female Button, stub end with cannula tip for connecting, therefore the casing pin thread that setting outwardly protrudes, for threading directly into casing coupling In.Sleeve is arranged outside concentric reducer, since the internal diameter of sleeve is equal to the outer diameter of concentric reducer stub end, sleeve and concentric reducer Can be directly attached by screw thread between stub end, it is ensured that stable connection between sleeve and concentric reducer so that sleeve and Concentric reducer connects into stable overall structure, and the casing pin thread on concentric reducer protrudes outside sleeve, to avoid sleeve to casing Pin thread normal use brings interference.Sleeve is detachably connected by two semicircular rings, convenient for being inserted in outside concentric reducer, is convenient for simultaneously Disassembly is removed.Due to the presence of sleeve in the utility model, casing tong or drilling well tong are either used, can be evaded big Inconvenience caused by microcephaly's pyramidal structure clamps the problem of detaining, and worker directly uses casing tong or drilling well tong closing sleeve, by In sleeve outer shape be no longer irregular pyramidal structure, but complete barrel-like structure, therefore can be real easily and fast Connection between existing concentric reducer and casing, drilling rod.In addition, concentric reducer outer surface hinged support bar, Ruo Gangen in the utility model Support rod is circumferentially distributed, and every support rod has corresponding first groove and the second groove, support rod can be around hinged Point, which is rotated into the first groove, stores storage, enables and is hidden in the first groove when without using support rod.Branch When strut is rotated around hinge joint, additionally it is possible to the outer end of support rod is gone in the second groove, it at this time can will be big by support rod Microcephaly and sleeve connection get up, and due to the effect of the second recess sidewall, want then when relatively rotating between concentric reducer and sleeve Blocking is limited by the side wall of the second groove, so that the synchronous rotation between concentric reducer and sleeve is realized by support rod, thus When so that being rotated from external gripper sleeve, it will be able to internal concentric reducer be driven to be rotated, realized the function of shackle.

Preferably, the sleeve is formed by connecting by two semicircular rings by hasp.In the present solution, can be incited somebody to action before concentric reducer connection Sleeve is connected integral by hasp, is threadedly coupled later with the stub end of concentric reducer.After the completion of use, open mutual The hasp of connection, then two semicircular rings are loosened from concentric reducer simultaneously, it can realize and simply and easily dismantle, greatly improve The ease of use of the utility model.

Preferably, the sleeve is made by stainless steel material.Ensure the intensity of sleeve, avoid humid air at sea In easily corrosion it is impaired.

Preferably, the support rod is diameter >=1cm solid steel tube.Diameter is limited less than the steel strength of 1cm, needs It often replaces, is cumbersome, and this programme can ensure that support rod has enough load and tension anti-twisting property, improves this reality With novel stability in use.

Preferably, shaft is arranged in the side wall of first groove, and the support rod is set in shaft.It is to pass through shaft Realize the hinged of support rod, the hinge joint of support rod also is located in the first groove in this programme, so that it is guaranteed that support rod can be whole Body, which enters in the first groove, to be stored.

Preferably, several support rods are uniformly distributed circumferentially in concentric reducer outer surface.Equally distributed support rod can mention Uniform force between high concentric reducer and sleeve, the stabilization so that the utility model integrated stress is evenly distributed, does not have Weak load-bearing point occurs.

The utility model compared with prior art, has the following advantages and benefits:

The utility model bores tube apparatus of trapping convenient for being sent into the sea batch of surface pipe, due to the presence of sleeve, no matter It is that can evade inconvenience caused by concentric reducer pyramidal structure using casing tong or drilling well tong and clamp the problem of detaining, work People directly uses casing tong or drilling well tong to clamp concentric reducer, can realize easily and fast concentric reducer and casing, drilling rod it Between connection.

Detailed description of the invention

Attached drawing described herein is used to provide to further understand the utility model embodiment, constitutes the one of the application Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings:

Fig. 1 is the axial sectional view of the utility model specific embodiment；

Fig. 2 is the external structure schematic diagram of the utility model specific embodiment；

Fig. 3 is the partial enlargement diagram in Fig. 1 at A.

Label and corresponding parts title in attached drawing:

1- concentric reducer, 2- casing pin thread, 3- sleeve, 4- support rod, the first groove of 5-, the second groove of 6-, 7- shaft, 8- take Button.

Specific embodiment

For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached drawing, The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this Utility model is not intended to limit the scope of the present invention.

Embodiment 1:

Bore tube apparatus of trapping, including concentric reducer 1, institute in sea batch convenient for being sent into surface pipe as shown in Figure 1 to Figure 3 The lower end for stating concentric reducer 1 is stub end, upper end is small head end, and drilling rod female thread, the bottom of the stub end are arranged in the small head end The casing pin thread 2 that outwardly protrudes is arranged in portion, further includes the sleeve 3 of annular, the sleeve 3 be detachably connected by two semicircular rings and At for 3 sets of the sleeve outside concentric reducer 1, the internal diameter of sleeve 3 is equal to the outer diameter of 1 stub end of concentric reducer, sleeve 3 and concentric reducer 1 Stub end between be connected through a screw thread, described sleeve pipe pin thread 2 protrude outside sleeve 3；It circumferentially cuts with scissors 1 outer surface of concentric reducer Several support rods 4 are connect, every support rod 4 is all with the first groove 5, the second groove 6 to match；First groove 5 is arranged On 1 surface of concentric reducer, support rod 4 can be accommodated into the first groove 5；Second groove 6 setting is described in 3 inner wall of sleeve The separate one end with the hinge joint of concentric reducer 1 of support rod 4 can be placed in second groove 6.The sleeve 3 is by two and half Annulus is formed by connecting by hasp 8.The sleeve 3 is made by stainless steel material.The support rod 4 is diameter >=1cm Solid steel tube.Shaft 7 is arranged in the side wall of first groove 5, and the support rod 4 is set in shaft 7.Several 4 edges of support rod Circumferentially it is evenly distributed on 1 outer surface of concentric reducer.

Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model Determine the protection scope of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced It changes, improve, should be included within the scope of protection of this utility model.

Claims (6)

1. being convenient for the sea for being sent into surface pipe to criticize bores tube apparatus of trapping, including concentric reducer (1), under the concentric reducer (1) End is stub end, upper end is small head end, and drilling rod female thread is arranged in the small head end, and the bottom setting of the stub end outwardly protrudes Casing pin thread (2), which is characterized in that further include the sleeve (3) of annular, the sleeve (3) detachably connects by two semicircular rings Connect, the sleeve (3) cover concentric reducer (1) outside, the internal diameter of sleeve (3) is equal to the outer diameter of concentric reducer (1) stub end, sleeve (3) be connected through a screw thread between the stub end of concentric reducer (1), described sleeve pipe pin thread (2) protrusion sleeve (3) outside；It is described big Microcephaly (1) outer surface circumferentially hinged several support rods (4), every support rod (4) all with the first groove (5) to match, Second groove (6)；First groove (5) is arranged on concentric reducer (1) surface, and support rod (4) can be accommodated into the first groove (5) In；Second groove (6) is arranged in sleeve (3) inner wall, separate one with the hinge joint of concentric reducer (1) of support rod (4) End can be placed in second groove (6).

2. tube apparatus of trapping is bored at the sea batch according to claim 1 convenient for being sent into surface pipe, which is characterized in that institute It states sleeve (3) and is formed by connecting by two semicircular rings by hasp (8).

3. tube apparatus of trapping is bored at the sea batch according to claim 1 convenient for being sent into surface pipe, which is characterized in that institute Sleeve (3) is stated to be made by stainless steel material.

4. tube apparatus of trapping is bored at the sea batch according to claim 1 convenient for being sent into surface pipe, which is characterized in that institute Stating support rod (4) is diameter >=1cm solid steel tube.

5. tube apparatus of trapping is bored at the sea batch according to claim 1 convenient for being sent into surface pipe, which is characterized in that institute Side wall setting shaft (7) of the first groove (5) is stated, the support rod (4) is set on shaft (7).

6. tube apparatus of trapping is bored at the sea batch according to claim 1 convenient for being sent into surface pipe, which is characterized in that if Heavenly Stems and Earthly Branches strut (4) is uniformly distributed circumferentially in concentric reducer (1) outer surface.