CN108518186A - A kind of offshore oilfield drilling well auxiliary device of high intensity - Google Patents
A kind of offshore oilfield drilling well auxiliary device of high intensity Download PDFInfo
- Publication number
- CN108518186A CN108518186A CN201810123646.7A CN201810123646A CN108518186A CN 108518186 A CN108518186 A CN 108518186A CN 201810123646 A CN201810123646 A CN 201810123646A CN 108518186 A CN108518186 A CN 108518186A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- concentric reducer
- arc block
- high intensity
- drilling well
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000005553 drilling Methods 0.000 title claims abstract description 41
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 64
- 239000000463 material Substances 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 208000004141 microcephaly Diseases 0.000 claims 1
- 239000002344 surface layer Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/08—Casing joints
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of offshore oilfield drilling well auxiliary devices of high intensity, 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 is sleeved on 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 present invention 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
Technical field
The present invention relates to offshore platform drilling applications, and in particular to a kind of offshore oilfield drilling well auxiliary device of high intensity.
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 (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 it is the knot for being in approximately conical shape to be convenient for lower end connecting sleeve, upper end jointed rod, therefore existing concentric reducer all
Structure is all inconvenient clamping concentric reducer, so as to cause concentric reducer two which results in no matter drilling well tong or casing tong is used
End carries out all being inconvenient when upper button connection 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.
Invention content
The purpose of the present invention is to provide a kind of offshore oilfield drilling well auxiliary devices of high intensity, to solve in the prior art
The problem of connection concentric reducer takes time and effort, inefficiency, realizes the company completed between concentric reducer and casing, drilling rod rapidly and efficiently
The purpose connect.
The present invention is achieved through the following technical solutions：
A kind of offshore oilfield drilling well auxiliary device of high intensity, including concentric reducer, the lower end of the concentric reducer be stub end,
Upper 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,
Further include the sleeve of annular, the sleeve is detachably connected by two semicircular rings, and the sleeve is sleeved on outside concentric reducer, sleeve
Internal diameter be equal to the outer diameter of concentric reducer stub end, be connected through a screw thread between sleeve and the stub end of concentric reducer, described sleeve pipe is public
Button protrusion is outside sleeve；N number of arc block, shape and concentric reducer and the set of the arc block are filled between the concentric reducer and sleeve
Gap shape between cylinder matches, and N number of arc block, which is connected with each other, to be surrounded circlewise, wherein N >=3；Two neighboring arc block it
Between mortise-tenon joint, the arc block is made by rigid material.
Taken time and effort for connection concentric reducer in the prior art, inefficiency the problem of, the present invention proposes a kind of high intensity
Offshore oilfield drilling well auxiliary device, this tool includes existing size header structure, wherein concentric reducer upper/lower terminal difference
For small head end, stub end, wherein small head end is used to connect with drilling rod bottom, therefore drilling rod female thread, stub end are set in small head end
For being connect with cannula tip, therefore the casing pin thread that setting outwardly protrudes, for threading directly into casing coupling.Sleeve is set
Set 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 it
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
It is connected into stable overall structure, the casing pin thread on concentric reducer protrudes outside sleeve, to avoid sleeve normal to casing pin thread
It is interfered using bringing.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 present invention, 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, filling N number of arc block between concentric reducer and sleeve, the shape of arc block is according to different shaped
Number concentric reducer setting, it is consistent to meet the gap shape between the shape of arc block and concentric reducer and sleeve so that arc block
It abundant and stable can be filled between sleeve and concentric reducer, it is ensured that arc block is in contact with concentric reducer and sleeve simultaneously.It is N number of
Arc block, which is connected with each other, to be surrounded circlewise, to be fully populated with the gap between full concentric reducer and sleeve by N number of arc block, by
It is made by rigid material in arc block, rigid material herein uses various rigid materials in the prior art, only
Enough rigid support abilities need to be met.N number of arc block is used to improve intensity and carrying energy between sleeve and concentric reducer
Power, to cope with the great snap-in force applied when drilling well tong gripper sleeve, it is ensured that the present invention integrally has fully and stablizes
Intensity, no matter from gripper sleeve on which direction, due to the sufficient packing action of arc block, sleeve can bear phase
The snap-in force answered, the final service life for improving the present invention.Inventor is by it is experimentally confirmed that cover 5 " drilling rods × 13-3/8 "
For pipe concentric reducer used, in the present invention, if being not provided with arc block, being bored for the surface layer batch of 6 mouthfuls of wells and needing to use two
Tool in a present invention just can ensure that completion, be that will necessarily damage one, and after being provided with arc block, only with a tool
Also operation is bored on the surface layer batch that 6 mouthfuls of wells can be completed, and use removes sleeve after the completion, arc block is checked, size head surface
Intact nothing is collided with and is worn.
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 present invention.
Preferably, the arc block is made by steel plate.
Preferably, straight slot, protrusion is respectively set in the opposite sides of the arc block, and the straight 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 straight slot of another arc block.
Mortise-tenon joint structure in this programme between two neighboring arc block makes specific restriction, the straight slot by being mutually matched and convex
It rises, the protrusion of an arc block is inserted into the straight slot of another arc block, to greatly improve the entirety of N number of arc block
Property, the uniformity of internal stress distribution during use of the present invention is improved, improves intensity and carrying on the whole.In this programme
Straight slot is preferably I-shaped slot structure, so that protrusion can only be inserted into from the end of straight slot, can more improve connective stability
And globality.
Compared with prior art, the present invention having the following advantages and advantages：
1, a kind of offshore oilfield drilling well auxiliary device of high intensity of the present invention, due to the presence of sleeve, either using set
Pipe wrench or drilling well tong can evade the problem of being detained in inconvenient clamping caused by concentric reducer pyramidal structure, and worker directly makes
Concentric reducer is clamped with casing tong or drilling well tong, can realize the connection between concentric reducer and casing, drilling rod easily and fast.
2, a kind of offshore oilfield drilling well auxiliary device of high intensity of the present invention, N number of arc block is for improving sleeve and size
Intensity and bearing capacity between head, to cope with the great snap-in force applied when drilling well tong gripper sleeve, it is ensured that this hair
Bright entirety has intensity that is abundant and stablizing, no matter from gripper sleeve on which direction, due to the sufficient packing action of arc block,
Therefore sleeve can bear corresponding snap-in force, the final service life for improving the present invention.
Description of the drawings
Attached drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is the axial sectional view of the specific embodiment of the invention；
Fig. 2 is the external structure schematic diagram of the specific embodiment of the invention；
Fig. 3 is the structural schematic diagram of arc block in the specific embodiment of the invention.
Label and corresponding parts title in attached drawing：
1- concentric reducers, 2- casing pin threads, 3- sleeves, 4- arc blocks, 5- straight slots, 6- protrusions, 7- hasps.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1：
A kind of offshore oilfield drilling well auxiliary device of high intensity as shown in Figure 1 to Figure 3, including concentric reducer 1, the size
First 1 lower end is stub end, upper end is small head end, and drilling rod female thread, the bottom setting of the stub end are arranged in the small head end
The casing pin thread 2 outwardly protruded further includes the sleeve 3 of annular, and the sleeve 3 is detachably connected by two semicircular rings, institute
It states sleeve 3 to be sleeved on outside concentric reducer 1, the internal diameter of sleeve 3 is equal to the outer diameter of 1 stub end of concentric reducer, the major part of sleeve 3 and concentric reducer 1
It is connected through a screw thread between end, described sleeve pipe pin thread 2 protrudes outside sleeve 3；N number of arc is filled between the concentric reducer 1 and sleeve 3
Shape block 4, the gap shape between the shape and concentric reducer 1 and sleeve 3 of the arc block 4 match, the phase each other of N number of arc block 4
It even surrounds 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
Straight slot 5, protrusion 6 is respectively set in the opposite sides of block 4, and the straight slot 5 and protrusion 6 are mutually matched, two neighboring arc block 4 it
Between, realize connection by the way that the protrusion 6 of an arc block to be inserted into the straight slot 5 of another arc block 4.
Above-described specific implementation mode has carried out further the purpose of the present invention, technical solution and advantageous effect
It is described in detail, it should be understood that the foregoing is merely the specific implementation mode of the present invention, is not intended to limit the present invention
Protection domain, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (4)
1. the lower end of a kind of offshore oilfield drilling well auxiliary device of high intensity, including concentric reducer (1), the concentric reducer (1) is big
Head end, upper end are small head end, and drilling rod female thread is arranged in the small head end, and the casing outwardly protruded is arranged in the bottom of the stub end
Pin thread (2), which is characterized in that further include the sleeve (3) of annular, the sleeve (3) is detachably connected by two semicircular rings,
The sleeve (3) is sleeved on concentric reducer (1) outside, and the internal diameter of sleeve (3) is equal to the outer diameter of concentric reducer (1) stub end, sleeve (3) with it is big
Be connected through a screw thread between the stub end of microcephaly (1), described sleeve pipe pin thread (2) protrusion sleeve (3) outside；The concentric reducer (1)
N number of arc block (4) is filled between sleeve (3), between the shape and concentric reducer (1) and sleeve (3) of the arc block (4) between
Gap 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)
The fourth of the twelve Earthly Branches connects, and the arc block (4) is made by rigid material.
2. a kind of offshore oilfield drilling well auxiliary device of high intensity according to claim 1, which is characterized in that the sleeve
(3) it is formed by connecting by hasp (7) by two semicircular rings.
3. a kind of offshore oilfield drilling well auxiliary device of high intensity according to claim 1, which is characterized in that the arc
Block (4) is made by steel plate.
4. a kind of offshore oilfield drilling well auxiliary device of high intensity according to claim 1, which is characterized in that the arc
Straight slot (5), raised (6) are respectively set in the opposite sides of block (4), and the straight slot (5) and raised (6) are mutually matched, two neighboring
Between arc block (4), by the way that the protrusion (6) of an arc block to be inserted into the company of realization in the straight slot (5) of another arc block (4)
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810123646.7A CN108518186A (en) | 2018-02-07 | 2018-02-07 | A kind of offshore oilfield drilling well auxiliary device of high intensity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810123646.7A CN108518186A (en) | 2018-02-07 | 2018-02-07 | A kind of offshore oilfield drilling well auxiliary device of high intensity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108518186A true CN108518186A (en) | 2018-09-11 |
Family
ID=63433051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810123646.7A Withdrawn CN108518186A (en) | 2018-02-07 | 2018-02-07 | A kind of offshore oilfield drilling well auxiliary device of high intensity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108518186A (en) |
-
2018
- 2018-02-07 CN CN201810123646.7A patent/CN108518186A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180911 |
|
| WW01 | Invention patent application withdrawn after publication |