CN203175449U - Double-acting coring reverse circulation salvage basket - Google Patents
Double-acting coring reverse circulation salvage basket Download PDFInfo
- Publication number
- CN203175449U CN203175449U CN 201320162318 CN201320162318U CN203175449U CN 203175449 U CN203175449 U CN 203175449U CN 201320162318 CN201320162318 CN 201320162318 CN 201320162318 U CN201320162318 U CN 201320162318U CN 203175449 U CN203175449 U CN 203175449U
- Authority
- CN
- China
- Prior art keywords
- salvage
- rock core
- core
- basket
- reverse circulation
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a salvage tool after a well is drilled in an oil field, in particular to a double-acting coring reverse circulation salvage basket. An upper joint of the basket is in threaded connection with an outer barrel; an inner barrel is arranged in the outer barrel; the outer barrel and the inner barrel are both welded with a water feeding hole; the outer side of a ball seat is connected with the inner barrel; the lower end of the ball seat is connected with a connecting sleeve; the connecting sleeve, a bearing block, a shaft, a coring barrel, a snap spring seat, a plate spring rock core claw are connected in sequence from top to bottom; a single-row tapered roller bearing is fastened between the bearing block and the shaft through a locking back-up nut and a back-up nut; a snap spring rock core claw is arranged in the snap spring seat; and the outer side of the lower end of the outer barrel is connected with a hard alloy six-blade drill bit. By using the salvage basket, the salvage success rate is high, the tool damage is reduced, the capability of pulling a rock core broken is increased, rock core falling objects are prevented from falling off, the rock core is prevented from clamping, the falling objects are guaranteed to be salvaged successfully, and the salvage basket overcomes the defects that the existing reverse circulation salvage basket is easily damaged, the salvage success rate is low, the rock core is easily clamped, and the rock core and the falling objects fall off after pulling out.
Description
Technical field:
The utility model relates to a kind of oil field and bores the completion fishing tool, and particularly core formula junk basket with reverse circulation is got in a kind of double acting.
Background technology:
Junk basket with reverse circulation mainly is the fishing tool of fishing for the less junk in shaft bottom, as salvaging bit cone, tooth, hand tool and bushel iron etc.It can cause local anti-circulation in the shaft bottom when fishing, junk is flushed in the junk basket.Especially adopt the drilling well of PDC drill bit, before drilling well, must use this instrument to open a hole at the end, to guarantee the normal use of drill bit.Fishing tool of drilling team's indispensability when so junk basket with reverse circulation is oil, geological prospecting drilling well.
In boring completion, it is helpless that junk basket with reverse circulation usually seems, is mainly reflected in the following aspects:
1, junk is after anti-circulation enters inner core, and leaf spring core pawl is often stuck by landwaste in getting the core process, causes the leaf spring well that fractures, and causes and salvages failure.
When 2, running into the hard core, the core pawl often takes place and damages distortion in the ability that leaf spring core pawl does not cut off core, loses the salvaging function.
3, because inner/outer tube is one, in the rotary coring process, normal appearance is stuck in inner core with core.After junk basket with reverse circulation must being carried out destructive gas cutting after the trip-out, could take out junk.
The utility model content:
The technical problems to be solved in the utility model provides a kind of double acting and gets core formula junk basket with reverse circulation, this device has been realized the fishing success ratio height, reduces tool damage, strengthens the ability of cutting-off core, prevent that the core junk from coming off and core is stuck, the assurance junk is salvaged smoothly.It is fragile to have overcome existing junk basket with reverse circulation, and fishing success ratio is low, the deficiency of the situation that take place easily that core is stuck, core and junk comes off after trip-out.
Technical solution adopted in the utility model is: core formula junk basket with reverse circulation is got in a kind of double acting, comprises top connection, urceolus, ball seat and steel ball; Top connection and urceolus are threaded, be provided with inner core in the urceolus, urceolus and inner core all weld with last hydrophthalmia, the ball seat outside is connected with inner core, the ball seat lower end is connected with adapter sleeve, and adapter sleeve, bearing support, axle, coring tube, clip spring seat, leaf spring core pawl connect from top to bottom in turn, and single-row tapered roller bearing is equipped with cap by locking, cap is fastened between bearing support and the axle fully, jump ring core pawl is installed in the clip spring seat, and the outside, urceolus lower end connects carbide alloy six drag bits.
In the seal groove of axle the O RunddichtringO is installed, the O RunddichtringO makes sealing between bearing support and the axle.
The beneficial effects of the utility model are: the utility model is because the mode that adopted bearing to be rotatably connected, thereby has the function that prevents that rock core is stuck; Owing to adopted the mode that jump ring core pawl and leaf spring core pawl are installed, thereby have the ability of strengthening the cutting-off core and prevent from the function that the core junk comes off from improving one time fishing success ratio, reduce tool damage, the assurance junk is salvaged smoothly.
Description of drawings:
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is structural representation of the present utility model.
The specific embodiment:
As shown in Figure 1, core formula junk basket with reverse circulation is got in a kind of double acting, comprises top connection 1, urceolus 2, ball seat 3 and steel ball 7; Top connection 1 and urceolus 2 are threaded, be provided with inner core 4 in the urceolus 2, urceolus 2 and inner core 4 all weld with last hydrophthalmia 6, ball seat 3 outsides are connected with inner core 4, ball seat 3 lower ends are connected with adapter sleeve 5, adapter sleeve 5, bearing support 8, axle 9, coring tube 14, clip spring seat 15, leaf spring core pawl 17 connect from top to bottom in turn, single-row tapered roller bearing 12 is equipped with cap 10 by locking, cap 11 is fastened between bearing support 8 and the axle 9 fully, jump ring core pawl 16 is installed in the clip spring seat 15, and the outside, urceolus 2 lower ends connects carbide alloy six drag bits 18.In the seal groove of axle 9 O RunddichtringO 13 is installed, O RunddichtringO 13 makes sealing between bearing support 8 and the axle 9.
Be understandable that, more than about specific descriptions of the present utility model, only for the utility model being described and being not to be subject to the described technical scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can make amendment or be equal to replacement the utility model, to reach identical technique effect; Use needs as long as satisfy, all within protection domain of the present utility model.
Claims (2)
1. core formula junk basket with reverse circulation is got in a double acting, comprises top connection (1), urceolus (2), ball seat (3) and steel ball (7); It is characterized in that: top connection (1) and urceolus (2) are threaded, be provided with inner core (4) in the urceolus (2), urceolus (2) and inner core (4) all weld with last hydrophthalmia (6), ball seat (3) outside is connected with inner core (4), ball seat (3) lower end is connected with adapter sleeve (5), adapter sleeve (5), bearing support (8), axle (9), coring tube (14), clip spring seat (15), leaf spring core pawl (17) connects from top to bottom in turn, single-row tapered roller bearing (12) is equipped with cap (10) by locking, being equipped with cap (11) is fastened between bearing support (8) and the axle (9), jump ring core pawl (16) is installed in the clip spring seat (15), and the outside, urceolus (2) lower end connects carbide alloy six drag bits (18).
2. get core formula junk basket with reverse circulation according to the described double acting of claim 1, it is characterized in that: in the seal groove of described axle (9) O RunddichtringO (13) is installed, O RunddichtringO (13) makes sealing between bearing support (8) and the axle (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320162318 CN203175449U (en) | 2013-04-02 | 2013-04-02 | Double-acting coring reverse circulation salvage basket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320162318 CN203175449U (en) | 2013-04-02 | 2013-04-02 | Double-acting coring reverse circulation salvage basket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203175449U true CN203175449U (en) | 2013-09-04 |
Family
ID=49072164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320162318 Expired - Fee Related CN203175449U (en) | 2013-04-02 | 2013-04-02 | Double-acting coring reverse circulation salvage basket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203175449U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643913A (en) * | 2013-12-05 | 2014-03-19 | 吉林大学 | Ice layer air turbine reverse circulation continuous coring downhole power drilling tool |
| CN106703734A (en) * | 2017-01-24 | 2017-05-24 | 中国石油天然气集团公司 | Coiled tubing slaving device |
| CN109469458A (en) * | 2018-09-27 | 2019-03-15 | 核工业北京地质研究院 | A kind of circlip type fisher and its Refloatation method |
| CN111005696A (en) * | 2020-01-03 | 2020-04-14 | 西南石油大学 | Umbrella type rock debris fishing tool for horizontal well |
| CN111305783A (en) * | 2019-11-18 | 2020-06-19 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Fishing device and fishing method for underground junk |
-
2013
- 2013-04-02 CN CN 201320162318 patent/CN203175449U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643913A (en) * | 2013-12-05 | 2014-03-19 | 吉林大学 | Ice layer air turbine reverse circulation continuous coring downhole power drilling tool |
| CN106703734A (en) * | 2017-01-24 | 2017-05-24 | 中国石油天然气集团公司 | Coiled tubing slaving device |
| CN109469458A (en) * | 2018-09-27 | 2019-03-15 | 核工业北京地质研究院 | A kind of circlip type fisher and its Refloatation method |
| CN111305783A (en) * | 2019-11-18 | 2020-06-19 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Fishing device and fishing method for underground junk |
| CN111305783B (en) * | 2019-11-18 | 2023-09-26 | 中国石油天然气集团有限公司 | Underground junk salvaging device and salvaging method |
| CN111005696A (en) * | 2020-01-03 | 2020-04-14 | 西南石油大学 | Umbrella type rock debris fishing tool for horizontal well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20140402 |