CN207905746U - A kind of novel fast joint type landing joint - Google Patents

Abstract

The utility model discloses a kind of novel fast joint type landing joints, including concentric reducer, the lower end of concentric reducer is stub end, upper end is small head end, and drilling rod female thread is arranged in small head end, and the casing pin thread outwardly protruded is arranged in the bottom of stub end, it further include the sleeve of annular, sleeve is detachably connected by two semicircular rings, and sleeve is sleeved on outside concentric reducer, and the internal diameter of sleeve is equal to the outer diameter of concentric reducer stub end, it is connected through a screw thread between sleeve and the stub end of concentric reducer, casing pin thread protrudes outside sleeve；The buffer layer being distributed from inside to outside, supporting layer are additionally provided between concentric reducer and sleeve, the inside of buffer layer is contacted with concentric reducer, the outside of buffer layer is contacted with supporting layer；The inside of supporting layer contacts with buffer layer, the outside of supporting layer and barrel contacts.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

A kind of novel fast joint type landing joint

Technical field

The utility model is related to offshore platform drilling applications, and in particular to a kind of novel fast joint type landing joint.

Background technology

Well cementation is directed to tripping in casing in well, and the construction work of cement is injected to the annular space 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, you can adjust the operation of the cantilever beam and derrick location progress next well of drilling platforms, 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, it is in the structure of approximately conical shape to be convenient for lower end connecting sleeve, upper end jointed rod, therefore existing concentric reducer all, this just leads Caused no matter use drilling well tong or casing tong, be all inconvenient clamping concentric reducer, 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 a kind of novel fast joint type landing joints, to solve to connect in the prior art The problem of concentric reducer takes time and effort, inefficiency, what the completion concentric reducer for realizing rapidly and efficiently was connect between casing, drilling rod Purpose.

The utility model is achieved through the following technical solutions：

A kind of novel fast joint type landing joint, including concentric reducer, the lower end of the concentric reducer is stub end, upper end is small Head end, the small head end is interior to be arranged drilling rod female thread, and the casing pin thread outwardly protruded is arranged in the bottom of the stub end, further includes ring The sleeve of shape, the sleeve are detachably connected by two semicircular rings, and the sleeve is sleeved on outside concentric reducer, the internal diameter etc. of sleeve It in the outer diameter of concentric reducer stub end, is connected through a screw thread between sleeve and the stub end of concentric reducer, described sleeve pipe pin thread protrusion exists Outside sleeve；Be additionally provided with the buffer layer being distributed from inside to outside, supporting layer between the concentric reducer and sleeve, the buffer layer it is interior Side is contacted with concentric reducer, the outside of buffer layer is contacted with supporting layer；The inside of the supporting layer contacts with buffer layer, supporting layer Outside and barrel contacts.

Taken time and effort for connection concentric reducer in the prior art, inefficiency the problem of, the utility model proposes a kind of new Type fast joint type landing joint, this tool include existing size header structure, and the upper/lower terminal of wherein concentric reducer is respectively small Wherein small head end is used to connect with drilling rod bottom, therefore drilling rod female thread is arranged in head end, stub end in small head end, stub end is used for It is connect with cannula tip, therefore the casing pin thread that setting outwardly protrudes, for threading directly into casing coupling.Sleeve setting exists Outside concentric reducer, since the internal diameter of sleeve is equal to the outer diameter of concentric reducer stub end, energy between sleeve and the stub end of concentric reducer It is enough to be directly attached by screw thread, it is ensured that stable connection between sleeve and concentric reducer so that sleeve and concentric reducer connect into Stable overall structure, the casing pin thread on concentric reducer protrudes outside sleeve, to avoid sleeve to casing pin thread normal use Bring interference.Sleeve is detachably connected by two semicircular rings, convenient for being inserted in outside concentric reducer, while easy to disassemble being removed.This Due to the presence of sleeve in utility model, casing tong or drilling well tong are either used, concentric reducer taper knot can be evaded Inconvenient caused by structure to clamp the problem of detaining, worker directly uses casing tong or drilling well tong closing sleeve, due on the outside of sleeve Shape is no longer irregular pyramidal structure, but complete barrel-like structure, thus can realize easily and fast concentric reducer with Connection between casing, drilling rod.In addition, subtracting of being distributed from inside to outside is additionally provided in the utility model between concentric reducer and sleeve Layer, supporting layer are shaken, is in the utility model, although the stub end of sleeve and concentric reducer is connected through a screw thread, stub end The concentric reducer outer diameter of area above has been respectively less than sleeve diameter, therefore buffer layer, supporting layer are arranged in this gap so that this reality It is followed successively by concentric reducer, buffer layer, supporting layer, sleeve from inside to outside with novel.Wherein supporting layer is using existing hard material Can, for improving intensity and bearing capacity between sleeve and concentric reducer, applied when drilling well tong gripper sleeve with coping with Great snap-in force, it is ensured that the service life that the utility model integrally has enough intensity, improves the utility model.And damping Layer is made using damping material, and the impact failure in reduction in shackle process to concentric reducer ontology further increases this reality With the structural stability during novel long-time service.Utility model people is by it is experimentally confirmed that cover 5 " drilling rods × 13-3/8 " For pipe concentric reducer used, in the utility model, if being not provided with buffer layer and supporting layer, being criticized for the surface layer of 6 mouthfuls of wells Brill needs just to can ensure that completion using the tool in two the utility model, and after being provided with buffer layer and supporting layer, only with one Operation is bored on the surface layer batch that a tool can also complete 8 mouthfuls of wells, and is dismantled sleeve, buffer layer, supporting layer after the completion and checked, greatly Small header structure is excellent.

Preferably, the sleeve is formed by two semicircular rings by hasp connection.In the present solution, can be incited somebody to action before concentric reducer connection Sleeve is integral by hasp connection, 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 buffer layer is the rubber pad of annular.Using the excellent elasticity of rubber pad and reset capability, to above unloading Vibrations during button are efficiently absorbed, it is ensured that damping performance.

Preferably, the supporting layer is steel loop.Ensure that supporting layer has enough support strengths, further ensures that support The physical protection of buffer layer and concentric reducer in layer.

Preferably, the steel loop is made of two parts of tenon connection.Steel loop has been divided into two by the mode of tenon connection Part convenient for steel loop being inserted on concentric reducer or removes, further increases the ease of use of the utility model.

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

1, a kind of novel fast joint type landing joint of the utility model either uses casing tong due to the presence of sleeve Or drilling well tong can evade the problem of being detained in inconvenient clamping caused by concentric reducer pyramidal structure, and worker is directly using set Pipe wrench or drilling well tong clamp concentric reducer, can realize the connection between concentric reducer and casing, drilling rod easily and fast.

2, a kind of novel fast joint type landing joint of the utility model, is additionally provided with from inside to outside between concentric reducer and sleeve Buffer layer, the supporting layer of distribution, wherein supporting layer are used to improve the intensity and bearing capacity between sleeve and concentric reducer, with reply The great snap-in force applied when drilling well tong gripper sleeve, it is ensured that the utility model integrally has enough intensity, improves The service life of the utility model；Buffer layer is for reducing the impact failure to concentric reducer ontology in upper shackle process, further Improve the structural stability during the utility model is used for a long time.

Description of the drawings

Attached drawing described herein is used for providing further understanding 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 structural schematic diagram of supporting layer in the utility model specific embodiment.

Label and corresponding parts title in attached drawing：

1- concentric reducers, 2- casing pin threads, 3- sleeves, 4- buffer layers, 5- supporting layers, 6- hasps.

Specific implementation mode

To make the purpose of this utility model, technical solution and advantage be more clearly understood, 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：

A kind of novel fast joint type landing joint as shown in Figure 1 to Figure 3, 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, further include the sleeve 3 of annular, the sleeve 3 is detachably connected by two semicircular rings, 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, passes through between sleeve 3 and the stub end of concentric reducer 1 It is threadedly coupled, described sleeve pipe pin thread 2 protrudes outside sleeve 3；It is additionally provided between the concentric reducer 1 and sleeve 3 and divides from inside to outside Buffer layer 4, the supporting layer 5 of cloth, the inside of the buffer layer 4 is contacted with concentric reducer 1, the outside of buffer layer 4 and supporting layer 5 connect It touches；The inside of the supporting layer 5 is contacted with buffer layer 4, the outside of supporting layer 5 is contacted with sleeve 3.The sleeve 3 is by two and half Annulus is formed by connecting by hasp 6.The sleeve 3 is made by stainless steel material.The buffer layer 4 is the rubber of annular Pad.The supporting layer 5 is steel loop.The steel loop is made of two parts of tenon connection.

Above-described specific implementation mode, to the purpose of this utility model, technical solution and advantageous effect carried out into One step is described in detail, it should be understood that the foregoing is merely specific embodiment of the present utility model, is not used to limit Determine the scope of protection 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. the lower end of a kind of novel fast joint type landing joint, including concentric reducer (1), the concentric reducer (1) is stub end, upper end For small head end, the small head end is interior to be arranged drilling rod female thread, and the casing pin thread (2) outwardly protruded is arranged in the bottom of the stub end, It is characterized in that, further including the sleeve (3) of annular, the sleeve (3) is detachably connected by two semicircular rings, the sleeve (3) it is sleeved on concentric reducer (1) outside, the internal diameter of sleeve (3) is equal to the outer diameter of concentric reducer (1) stub end, sleeve (3) and concentric reducer (1) Stub end between be connected through a screw thread, described sleeve pipe pin thread (2) protrusion sleeve (3) outside；The concentric reducer (1) and sleeve (3) buffer layer (4) being distributed from inside to outside, supporting layer (5), the inside of the buffer layer (4) and concentric reducer are additionally provided between (1) it contacts, the outside of buffer layer (4) is contacted with supporting layer (5)；The inside of the supporting layer (5) contacts with buffer layer (4), props up The outside of support layer (5) is contacted with sleeve (3).

2. a kind of novel fast joint type landing joint according to claim 1, which is characterized in that the sleeve (3) is by two A semicircular ring is formed by connecting by hasp (6).

3. a kind of novel fast joint type landing joint according to claim 1, which is characterized in that the sleeve (3) is not by Rust Steel material is made.

4. a kind of novel fast joint type landing joint according to claim 1, which is characterized in that the buffer layer (4) is The rubber pad of annular.

5. a kind of novel fast joint type landing joint according to claim 1, which is characterized in that the supporting layer (5) is Steel loop.

6. a kind of novel fast joint type landing joint according to claim 5, which is characterized in that the steel loop is connected by mortise and tenon Two parts composition connect.