CN208347739U - Self-elevating drilling platform surface pipe running tool - Google Patents

Abstract

The utility model discloses self-elevating drilling platform surface pipe running tools, including concentric reducer, the lower end of concentric reducer is stub end, upper end is small head end, drilling rod female thread is set in small head end, 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, sleeve covers outside concentric reducer, 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；N number of arc block is filled between concentric reducer and sleeve, gap shape matches between the shape and concentric reducer and sleeve of arc block, and N number of arc block is connected with each other around circlewise；Mortise-tenon joint between two neighboring arc block, arc block are made by rigid material.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

Self-elevating drilling platform surface pipe running tool

Technical field

The utility model relates to offshore platform drilling applications, and in particular to self-elevating drilling platform surface pipe is sent into work Tool.

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 (connection Epimerite) it is an essential tool, function is the connection realized between casing and drilling rod.Under existing concentric reducer is all End is big, upper end is small, and being convenient for lower end connecting sleeve, upper end jointed rod, therefore existing concentric reducer all is the knot for being in approximately conical shape Structure is inconvenient clamping concentric reducer, all which results in no matter drilling well tong or casing tong is used so as to cause concentric reducer two End carries out all being inconvenient when the connection of upper button respectively with casing and drilling rod, it is often necessary to take considerable time and be adjusted at the scene It is whole, it can realize and be 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 self-elevating drilling platform surface pipe running tools, to solve the prior art The problem of middle connection concentric reducer takes time and effort, inefficiency, realizes between completion concentric reducer and casing, drilling rod rapidly and efficiently The purpose of connection.

The utility model is achieved through the following technical solutions:

Self-elevating drilling platform surface pipe running tool, including concentric reducer, the lower end of the concentric reducer be stub end, on End is small head end, and drilling rod female thread is arranged in the small head end, and the casing pin thread outwardly protruded is arranged in the bottom of the stub end, also Sleeve including annular, the sleeve are detachably connected by two semicircular rings, and the sleeve covers outside concentric reducer, sleeve Internal diameter 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 sleeve pipe pin thread Protrusion is outside sleeve；N number of arc block, the shape and concentric reducer and sleeve of the arc block are filled between the concentric reducer and sleeve Between gap shape match, N number of arc block is connected with each other around circlewise, wherein N >=3；Between two neighboring arc block Mortise-tenon joint, the arc block are made by rigid material.

In the prior art connection concentric reducer take time and effort, inefficiency aiming at the problem that, the utility model proposes jack ups Drilling platforms surface pipe running tool, this tool include existing size header structure, wherein the upper/lower terminal of concentric reducer point Not Wei small head end, stub end, wherein small head end is with drilling rod bottom for connect, therefore setting drilling rod female thread in small head end, major part End with cannula tip for connecting, therefore the casing pin thread that setting outwardly protrudes, for threading directly into casing coupling.Sleeve It is arranged outside concentric reducer, since the internal diameter of sleeve is equal to the outer diameter of concentric reducer stub end, the stub end of sleeve and concentric reducer Between can 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, casing pin thread on concentric reducer protrudes outside sleeve, thus avoid sleeve to casing pin thread just It is often used and brings interference.Sleeve is detachably connected by two semicircular rings, convenient for being inserted in outside concentric reducer, while easy to disassemble being taken Under.Due to the presence of sleeve in the utility model, casing tong or drilling well tong are either used, size nose cone can be evaded Inconvenience caused by shape structure clamps the problem of detaining, and worker directly uses casing tong or drilling well tong closing sleeve, due to sleeve Outer shape is no longer irregular pyramidal structure, but complete barrel-like structure, therefore can realize size easily and fast Head and the connection between casing, drilling rod.In addition, filling N number of arc block between concentric reducer and sleeve, the shape of arc block is not according to Concentric reducer with model is arranged, consistent to meet the gap shape between the shape of arc block and concentric reducer and sleeve, so that arc Shape block abundant and stable can be filled between sleeve and concentric reducer, it is ensured that arc block connects with concentric reducer and sleeve simultaneously Touching.N number of arc block, which is connected with each other, to be surrounded circlewise, to be fully populated between full concentric reducer and sleeve by N number of arc block Gap, since arc block is made by rigid material, rigid material herein uses various rigid materials in the prior art , it is only necessary to meet enough rigid support abilities.N number of arc block be used to improve intensity between sleeve and concentric reducer with Bearing capacity, to cope with the great bite force applied when drilling well tong gripper sleeve, it is ensured that the utility model integrally has Abundant and stable intensity, no matter from gripper sleeve on which direction, due to the sufficient packing action of arc block, sleeve is all It is able to bear corresponding bite force, the final service life for improving the utility model.Utility model people by it is experimentally confirmed that for For concentric reducer used in 5 " drilling rods × 13-3/8 " casing, it is used in the utility model, if being not provided with arc block, for 6 mouthfuls of wells Surface layer batch bore and need just to can ensure that completion using the tool in two the utility model, be that will necessarily damage one, and set After having set arc block, only bore operation with the surface layer batch that a tool can also complete 6 mouthfuls of wells, and removed after the completion of use sleeve, Arc block is checked that the intact nothing of size head surface is collided with and worn.

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 arc block is made by steel plate.

Preferably, through slot, protrusion is respectively set in the opposite sides of the arc block, and the through slot and protrusion are mutually matched, Between two neighboring arc block, connection is realized by the way that the protrusion of an arc block to be inserted into the through slot of another arc block. Specific restriction is made to the mortise-tenon joint structure between two neighboring arc block in this programme, by the through slot that is mutually matched and convex It rises, the protrusion of an arc block is inserted into the through slot of another arc block, to greatly improve the entirety of N number of arc block Property, the uniformity of internal stress distribution in the utility model use process is improved, improves intensity and carrying on the whole.This programme In through slot be preferably I-shaped slot structure so that protrusion can only be inserted into from the end of through slot, can more improve connection surely Qualitative and globality.

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

1, the utility model self-elevating drilling platform surface pipe running tool is either used due to the presence of sleeve Casing tong or drilling well tong can evade inconvenience caused by concentric reducer pyramidal structure and clamp the problem of detaining, and worker is direct Concentric reducer is clamped using casing tong or drilling well tong, can realize the company between concentric reducer and casing, drilling rod easily and fast It connects.

2, the utility model self-elevating drilling platform surface pipe running tool, N number of arc block is for improving sleeve and big Intensity and bearing capacity between microcephaly, to cope with the great bite force applied when drilling well tong gripper sleeve, it is ensured that this Utility model integrally has abundant and stable intensity, no matter from gripper sleeve on which direction, since arc block is adequately filled The effect of filling out, therefore sleeve can bear corresponding bite force, the final service life for improving the utility model.

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 structural schematic diagram of arc block in the utility model specific embodiment.

Label and corresponding parts title in attached drawing:

1- concentric reducer, 2- casing pin thread, 3- sleeve, 4- arc block, 5- through slot, 6- protrusion, 7- hasp.

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:

Self-elevating drilling platform surface pipe running tool as shown in Figure 1 to Figure 3, including concentric reducer 1, the concentric reducer 1 lower end is stub end, upper end is small head end, is arranged drilling rod female thread in the small head end, the bottom of the stub end be arranged to The casing pin thread 2 of outer protrusion further includes the sleeve 3 of annular, and the sleeve 3 is detachably connected by two semicircular rings, described 3 sets of sleeve outside concentric reducer 1, the internal diameter of sleeve 3 is equal to the outer diameter of 1 stub end of concentric reducer, the stub end of sleeve 3 and concentric reducer 1 Between be connected through a screw thread, described sleeve pipe pin thread 2 protrude outside sleeve 3；N number of arc is filled between the concentric reducer 1 and sleeve 3 Block 4, the gap shape between the shape and concentric reducer 1 and sleeve 3 of the arc block 4 match, and N number of arc block 4 is connected with each other Around circlewise, wherein N >=3；Mortise-tenon joint between two neighboring arc block 4, the arc block 4 by rigid material make and At.The sleeve 3 is formed by connecting by two semicircular rings by hasp 7.The arc block 4 is made by steel plate.The arc Through slot 5, protrusion 6 is respectively set in the opposite sides of block 4, and the through slot 5 and protrusion 6 are mutually matched, two neighboring arc block 4 it Between, connection is realized by the way that the protrusion 6 of an arc block to be inserted into the through slot 5 of another arc block 4.

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 (3)

1. self-elevating drilling platform surface pipe running tool, including concentric reducer (1), the lower end of the concentric reducer (1) is major part End, upper end are small head end, and drilling rod female thread is arranged in the small head end, and the casing that the bottom setting of the stub end outwardly protrudes is public It detains (2), which is characterized in that further include the sleeve (3) of annular, the sleeve (3) is detachably connected by two semicircular rings, institute State 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) and size Head (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 It is filled between sleeve (3) N number of arc block (4), the gap between the shape and concentric reducer (1) and sleeve (3) of the arc block (4) Shape matches, and N number of arc block (4), which is connected with each other, to be surrounded circlewise, wherein N >=3；Tenon between two neighboring arc block (4) Connection, the arc block (4) are made by rigid material.

2. self-elevating drilling platform surface pipe running tool according to claim 1, which is characterized in that the arc block (4) it is made by steel plate.

3. self-elevating drilling platform surface pipe running tool according to claim 1, which is characterized in that the arc block (4) through slot (5), raised (6) is respectively set in opposite sides, and the through slot (5) and raised (6) are mutually matched, two neighboring arc Between shape block (4), by the way that the protrusion (6) of an arc block to be inserted into the company of realization in the through slot (5) of another arc block (4) It connects.