CN104389542A - Drill pipe drift assembly - Google Patents
Drill pipe drift assembly Download PDFInfo
- Publication number
- CN104389542A CN104389542A CN201410661709.6A CN201410661709A CN104389542A CN 104389542 A CN104389542 A CN 104389542A CN 201410661709 A CN201410661709 A CN 201410661709A CN 104389542 A CN104389542 A CN 104389542A
- Authority
- CN
- China
- Prior art keywords
- jack rabbit
- drilling rod
- hole
- drift
- cradle
- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 claims abstract description 62
- 241000283986 Lepus Species 0.000 claims description 81
- 210000000664 rectum Anatomy 0.000 claims description 19
- 230000035515 penetration Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 6
- 230000005484 gravity Effects 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004576 sand Substances 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
- E21B31/00—Fishing for or freeing objects in boreholes or wells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Marine Sciences & Fisheries (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a drill pipe drift assembly. The drill pipe drift assembly comprises a circular tube-shaped drift body, a lifting lug fixedly connected to the top end of the drift body, a supporting base with an axial penetrating through hole, and a supporting step arranged at the middle section of the through hole of the supporting base and capable of supporting the drift body, wherein the inner cavity of the part above the supporting step is larger than the drift body; a top joint which can be connected with the bottom end of a drill pipe needing to be drifted is arranged at the top of the supporting base. When the circular tube-shaped drift is used for drifting, the drift body can be arranged in the through hole preformed in the supporting base; the through hole is formed in the drift and convenient for a fluid to pass through; the through hole projects towards the axis, namely the inner side, to form the supporting step capable of stopping the drift from passing through and functioning in supporting the drift; the supporting base is provided with the connection part connected with the bottom end of the drill pipe so that the drift is finally supported by the supporting base during drilling from top to bottom under the action of gravity, and therefore, the drift is protected and recovered.
Description
Technical field
The present invention relates to a kind of latus rectum instrument, particularly relate to a kind of drilling rod jack rabbit assembly.
Background technology
Know in the industry, in drillng operation, some job requirements must be sent into drilling rod to each post and carry out latus rectum, ensures that all drilling rod inner flow passage in down-hole are without blocking.As drilling and coring delivery, lower tail pipe operation etc., after position delivered to by drilling rod, tail pipe, need pitching to reach certain object, just can carry out subsequent job.
These operations have a feature, namely be that before using, the drilling rod plowed in drilling tool carries out operation, therefore, be necessary to study in the trip-out process of a kind of new jack rabbit before these operations, disposable and logical full drill string safely and fast, the external diameter of jack rabbit only need be more bigger than input ball.After reaching coring bed as bored at drilling tool, changing in the trip-out operation before core drill and using; After drilling tool brill reaches the lower tail pipe degree of depth, use etc. in the trip-out operation before lower tail pipe.
In current Offshore Operation, the method that drill string latus rectum generally adopts is still single-column latus rectum, under enter in drilling rod process, from quadruple board platform, jack rabbit is put in drilling rod by rig floor rigger, time top is driven and mentioned drilling rod, drop out bottom drilling rod, after jack rabbit cleaning checks, be suspended on after on elevator with cord by rig floor driller, again pass to rigger.Drawback is well imagined, labour intensity is large, security risk is large and operating efficiency is lower, injures rig floor staff by a crashing object, fall in well generation causing serious down-hole accident etc. as jack rabbit drops from quadruple board platform.
And " once full well drilling tool jack rabbit " that No. 202850915Uth, Chinese patent notification number proposes, comprise the structures such as circulation port, delivery hole, intake chute, its structure is comparatively complicated; The intake chute that two end faces of jack rabbit body are offered and the delivery hole arranged on the taper seat of High angle chamfering can reduce jack rabbit bulk strength, easily damage in operation process; On the other hand, in trip-out process, there is recovery problem." one is full well drill string jack rabbit and using method thereof once " that No. 103556968Ath, Chinese patent notification number proposes, comprise the jack rabbit main body of the perforation having its upper and lower end face through, there are the structures such as tether connector and wire rope, it is applicable to before the perforating job and sand control treatment of completion phase, after sleeve pipe pipe cleaning, clean-out service terminate.Due in drillng operation; down-hole is with the instrument such as directional well, well logging during; the use of this jack rabbit will tool for destroying; cannot meet drifting terminate rear pull out of hole time latus rectum requirement; therefore the support joint that increase by is supporting in drilling tool is needed; protection lower tool, is also convenient to the recovery of jack rabbit simultaneously.
Summary of the invention
For the deficiencies in the prior art, the technical problem to be solved in the present invention is to provide a kind of quick latus rectum and the drilling rod jack rabbit assembly be convenient to protection and reclaimed.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of drilling rod jack rabbit assembly, it comprise tubular type jack rabbit body, be fixedly connected on described jack rabbit body top hanger, have axial penetration type through hole cradle, be located at the through hole of cradle stage casing and the support step of jack rabbit body can be held, the above partial lumen of described support step is greater than jack rabbit body, and described cradle top is provided with can with the top contact needing the drilling rod bottom of latus rectum to be connected.
One as the technical scheme of drilling rod jack rabbit assembly of the present invention is improved, and described support step is convex ring-type.
One as the technical scheme of drilling rod jack rabbit assembly of the present invention is improved, and be set to straight body circular hole on the upside of described support step, be provided with importing taper hole on the upside of this straight body circular hole, the top of described importing taper hole is greater than the endoporus of described drilling rod.
One as the technical scheme of drilling rod jack rabbit assembly of the present invention is improved, and the through hole on the upside of described support step is set to inverted cone surface circular hole, and the top of described inverted cone surface circular hole is greater than the endoporus of described drilling rod.
One as the technical scheme of drilling rod jack rabbit assembly of the present invention is improved, described top contact and described drilling rod bottom button-type suitable, be provided with the bottom fitting consistent with drilling rod bottom button-type bottom described cradle.
One as the technical scheme of drilling rod jack rabbit assembly of the present invention is improved, and the external diameter of described jack rabbit body is 37 ~ 76.2mm, and the internal diameter of jack rabbit body is 0.8 ~ 0.85 with the ratio of external diameter.
Beneficial effect of the present invention is: during the jack rabbit latus rectum of tubular type, and in drilling rod, already present fluid is through making jack rabbit can be unobstructed through in drilling rod fast in the middle part of jack rabbit, thus realizes quick latus rectum.Simultaneously; assembly is provided with cradle; jack rabbit body can be placed in the through hole preset in cradle; it is perforation in jack rabbit; be convenient to fluid pass, through hole is that inner side protrusion formation can stop the support step playing the effect of support jack rabbit that jack rabbit passes through to axle center, and cradle is provided with connecting portion and is connected with drilling rod bottom; make jack rabbit under gravity from upper end down latus rectum time finally caught by cradle, realize the protection to jack rabbit and recovery.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of drilling rod jack rabbit of the present invention assembly.
Detailed description of the invention
The specific embodiment of the present invention is further illustrated below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of drilling rod jack rabbit of the present invention assembly, it comprise tubular type jack rabbit body 10, be fixedly connected on described jack rabbit body top hanger 12, have axial penetration type through hole cradle 20, be located at the through hole 21 of cradle 20 stage casing and the support step 22 of jack rabbit body can be held, described support step more than 22 partial lumen is greater than jack rabbit body 20, and described cradle 20 top is provided with can with the top contact 25 needing the drilling rod bottom of latus rectum to be connected.During the jack rabbit latus rectum of tubular type, in drilling rod, already present fluid is through making jack rabbit can be unobstructed through in drilling rod fast in the middle part of jack rabbit, thus realizes quick latus rectum.Simultaneously; assembly is provided with cradle 20; jack rabbit body 10 can be placed in the through hole 21 preset in cradle 20; it is perforation in jack rabbit; be convenient to fluid pass, through hole 21 is that inner side protrusion formation can stop the support step 22 playing the effect of support jack rabbit that jack rabbit passes through to axle center, and cradle 20 is provided with connecting portion and is connected with drilling rod bottom; make jack rabbit under gravity from upper end down latus rectum time finally caught by cradle 20, realize the protection to jack rabbit and recovery.Hanger 12 can arrange lifting hole(eyelet) 13 and be convenient to use hook to catch on when latus rectum has some setbacks lifting hole(eyelet) is reverse mention and reclaim jack rabbit.Because jack rabbit body 10 is the tubular of hollow, even if so jack rabbit blocks the use also not affecting drilling rod in a certain position of drilling rod, avoid conventional jack rabbit to block then this will being saved in a certain position the situation that drilling rod is scrapped.
More preferably, described support step 22, in convex ring-type, is convenient to the peripheral position of the jack rabbit catching circular tube shaped, catches jack rabbit reposefully and realizes reclaiming, and provides by holding the protection of jack rabbit realization to jack rabbit.
More preferably, the through hole on the upside of described support step 22 is set to straight body circular hole, and be provided with on the upside of this straight body circular hole and import taper hole 23, the top of described importing taper hole 23 is greater than the endoporus of described drilling rod, is convenient to smooth and easy the falling in through hole of jack rabbit and can protects jack rabbit again.
More preferably, the through hole on the upside of described support step 22 is set to inverted cone surface circular hole, and the top of described inverted cone surface circular hole is greater than the endoporus of described drilling rod, is convenient to smooth and easy the falling in through hole of jack rabbit and can protects jack rabbit again.
More preferably; described top contact 25 is suitable with described drilling rod bottom button-type; the bottom fitting 26 consistent with drilling rod bottom button-type is provided with bottom described cradle 20; thus this cradle 20 not only can be connected with the drilling rod of upside but also can be connected with the drilling rod of downside; and then play the connector effect of connection two drilling rods; make cradle double as connector, existing support reclaims and the function of protection jack rabbit has again jointed rod to make the stable effect connected between drilling rod.
More preferably, the external diameter of described jack rabbit body 10 is 37 ~ 76.2mm, and the internal diameter of jack rabbit body 10 is 0.8 ~ 0.85 with the ratio of external diameter, is applicable to conventional drilling rod and carries out latus rectum use, also ensure that jack rabbit inside can be passed through with smooth fluid, ensures the latus rectum speed of jack rabbit.Drilling rod for different internal orifice dimension can select the jack rabbit of different size to carry out latus rectum use.
Above disclosedly be only the preferred embodiments of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the present patent application the scope of the claims is done, still belong to the scope that the present invention is contained.
Claims (6)
1. a drilling rod jack rabbit assembly, it is characterized in that: the support step of jack rabbit body also can be held in the stage casing of the through hole of cradle that comprises the jack rabbit body of tubular type, is fixedly connected on the hanger on described jack rabbit body top, has the cradle of axial penetration type through hole, is located at, the above partial lumen of described support step is greater than jack rabbit body, and described cradle top is provided with can with the top contact needing the drilling rod bottom of latus rectum to be connected.
2. drilling rod jack rabbit assembly according to claim 1, is characterized in that: described support step is convex ring-type.
3. drilling rod jack rabbit assembly according to claim 1 and 2, is characterized in that: be set to straight body circular hole on the upside of described support step, is provided with importing taper hole on the upside of this straight body circular hole, and the top of described importing taper hole is greater than the endoporus of described drilling rod.
4. drilling rod jack rabbit assembly according to claim 1 and 2, is characterized in that: the through hole on the upside of described support step is set to inverted cone surface circular hole, the top of described inverted cone surface circular hole is greater than the endoporus of described drilling rod.
5. drilling rod jack rabbit assembly according to claim 1, is characterized in that: described top contact and described drilling rod bottom button-type suitable, be provided with the bottom fitting consistent with drilling rod bottom button-type bottom described cradle.
6. drilling rod jack rabbit assembly according to claim 1, is characterized in that: the external diameter of described jack rabbit body is 37 ~ 76.2mm, and the internal diameter of jack rabbit body is 0.8 ~ 0.85 with the ratio of external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410661709.6A CN104389542A (en) | 2014-11-19 | 2014-11-19 | Drill pipe drift assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410661709.6A CN104389542A (en) | 2014-11-19 | 2014-11-19 | Drill pipe drift assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104389542A true CN104389542A (en) | 2015-03-04 |
Family
ID=52607491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410661709.6A Pending CN104389542A (en) | 2014-11-19 | 2014-11-19 | Drill pipe drift assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104389542A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117127970A (en) * | 2023-10-26 | 2023-11-28 | 四川圣诺油气工程技术服务有限公司 | Liquid detection sampling open well integrated operation tool and use method |
-
2014
- 2014-11-19 CN CN201410661709.6A patent/CN104389542A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117127970A (en) * | 2023-10-26 | 2023-11-28 | 四川圣诺油气工程技术服务有限公司 | Liquid detection sampling open well integrated operation tool and use method |
| CN117127970B (en) * | 2023-10-26 | 2024-01-12 | 四川圣诺油气工程技术服务有限公司 | Liquid detection sampling open well integrated operation tool and use method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150304 |