CN202596598U - Drilling fluid filter circulation short section and drilling fluid filter circulation pipe string - Google Patents
Drilling fluid filter circulation short section and drilling fluid filter circulation pipe string Download PDFInfo
- Publication number
- CN202596598U CN202596598U CN 201220237003 CN201220237003U CN202596598U CN 202596598 U CN202596598 U CN 202596598U CN 201220237003 CN201220237003 CN 201220237003 CN 201220237003 U CN201220237003 U CN 201220237003U CN 202596598 U CN202596598 U CN 202596598U
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- China
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- drilling fluid
- connector
- fluid filter
- fluid cleaner
- circulating sub
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- Expired - Fee Related
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Abstract
The utility model relates to the technical field of drilling fluid filters and discloses a drilling fluid filter circulation short section and a drilling fluid filter circulation pipe string. The drilling fluid filter circulation short section comprises a body and a connector, wherein the lower end of the body is fixed with the upper end of the connector, a step hole which is wide on the top and narrow at the bottom is arranged on the body along the axial direction, a filter is arranged on the upper portion inside the step hole, internal threads are arranged on the inner wall of the upper end of the step hole, and external threads are arranged on the outer side of the connector. The drilling fluid filter circulation short section is reasonable and compact in structure and convenient to use. Due to the fact that the filter is arranged on the upper portion of the step hole, increasing of screw rod damage rates is prevented, and the damage rates are caused by thorn leakage and reduction of strength of a drilling tool due to the fact that the filter is used to scour the inner wall of the drilling tool, and therefore cost of drill rods is greatly reduced.
Description
Technical field
The utility model relates to drilling fluid cleaner technical field, is a kind of drilling fluid cleaner circulating sub and drilling fluid cleaner circulation pipe string.
Background technology
Along with deepening continuously of oil field prospecting exploitation, in order effectively to control wellbore quality, the use of MWD wireless instruments in drilling process is more frequent, therefore, has increased the drill pipe filter frequency of usage.Because drill pipe filter is to be directly installed on hydrophthalmia place in the drilling rod, in the process of circulation, has caused the spoilage of drilling rod significantly to increase.
Summary of the invention
The utility model provides a kind of drilling fluid cleaner circulating sub and pipe string devices, has overcome the deficiency of above-mentioned prior art, and it can effectively solve the many and problem that causes the spoilage of drilling rod significantly to increase of cleaner frequency of usage.
One of technical scheme of the utility model realizes through following measure: a kind of drilling fluid cleaner circulating sub comprises body and connector; The lower end of body and the upper end of connector are fixed together, and shoulder hole wide at the top and narrow at the bottom is arranged on body vertically, in the shoulder hole of top, cleaner are installed, and on the inwall of the upper end of shoulder hole, internal thread are arranged, and in the outside of connector external screw thread are arranged.
Be to the further optimization of above-mentioned utility model technical scheme below or/and improve:
The top of above-mentioned shoulder hole is taper type wide at the top and narrow at the bottom.
The lateral surface of above-mentioned connector can be frustum face wide at the top and narrow at the bottom.
Above-mentioned connector and body are that one is fixed.
Two of the technical scheme of the utility model realizes through following measure: a kind of drilling fluid cleaner circulation pipe string that uses drilling fluid cleaner circulating sub comprises kelly bar, drilling fluid cleaner circulating sub, protection joint and drilling rod; The inboard, upper end of the lower outside of kelly bar and drilling fluid cleaner circulating sub is fixedly installed togather through screw thread; The lower outside of drilling fluid cleaner circulating sub is fixedly installed togather through screw thread with the upper inner of protection joint, and the lower inside of protection joint and the inboard, upper end of drilling rod are fixedly installed togather.
The utility model reasonable and compact in structure; Easy to use; Through in the shoulder hole of top, cleaner being installed, having prevented to wash away drilling tool thorn that the drilling tool inwall causes and leak to reduce and increased the drilling rod spoilage, so greatly practiced thrift the drilling rod cost with intensity because of cleaning cleaner.
Description of drawings
Accompanying drawing 1 is looked the sectional structure sketch map for the master of embodiment one.
Accompanying drawing 2 is the broken section configuration diagram of embodiment two.
Coding in the accompanying drawing is respectively: 1 is body, and 2 is connector, and 3 is shoulder hole, and 4 is cleaner, and 5 is kelly bar, and 6 are the protection joint, and 7 is drilling rod.
The specific embodiment
The utility model does not receive the restriction of following embodiment, can confirm concrete embodiment according to the technical scheme and the actual conditions of the utility model.
In the utility model; For the ease of describing; The description of the relative position relation of each parts all is to describe according to the Butut mode of Figure of description, as: the position relation of forward and backward, upper and lower, left and right etc. is what to confirm according to the Butut direction of Figure of description.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
Embodiment one: shown in accompanying drawing 1, a kind of drilling fluid cleaner circulating sub comprises body 1 and connector 2; The upper end of the lower end of body 1 and connector 2 is fixed together, and shoulder hole wide at the top and narrow at the bottom 3 is arranged on body 1 vertically, and cleaner 4 is installed in top shoulder hole 3, on the inwall of the upper end of shoulder hole 3, internal thread is arranged, and in the outside of connector 2 external screw thread is arranged.During use, body 1 is fixedly mounted in kelly bar 5 bottoms through screw thread, cleaner 4 is positioned at body 1, and utilizing makes a trip intermittently clears up, and avoids washing away drilling rod, effectively reduces the erosion of drilling rod.
Can according to actual needs above-mentioned drilling fluid cleaner circulating sub be done further to optimize or/and improve:
Shown in accompanying drawing 1, the top of shoulder hole 3 is taper type wide at the top and narrow at the bottom.Like this, cleaner 4 is convenient to be installed in the top of shoulder hole 3.
Shown in accompanying drawing 1, the lateral surface of connector 2 is a frustum face wide at the top and narrow at the bottom.
As required, connector 2 is fixed for one with body 1.
Embodiment two: shown in accompanying drawing 2, a kind of drilling fluid cleaner circulation pipe string that uses drilling fluid cleaner circulating sub comprises kelly bar 5, drilling fluid cleaner circulating sub, protection joint 6 and drilling rod 7; The inboard, upper end of the lower outside of kelly bar 5 and drilling fluid cleaner circulating sub is fixedly installed togather through screw thread; The lower outside of drilling fluid cleaner circulating sub is fixedly installed togather through screw thread with the upper inner of protection joint 6, and the lower inside of protection joint 6 and the inboard, upper end of drilling rod 7 are fixedly installed togather.
Above technical characterictic has constituted the embodiment of the utility model, and it has stronger compliance and implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
Claims (6)
1. a drilling fluid cleaner circulating sub is characterized in that comprising body and connector; The lower end of body and the upper end of connector are fixed together, and shoulder hole wide at the top and narrow at the bottom is arranged on body vertically, in the shoulder hole of top, cleaner are installed, and on the inwall of the upper end of shoulder hole, internal thread are arranged, and in the outside of connector external screw thread are arranged.
2. drilling fluid cleaner circulating sub according to claim 1 is characterized in that the top of shoulder hole is taper type wide at the top and narrow at the bottom.
3. drilling fluid cleaner circulating sub according to claim 1 and 2, the lateral surface that it is characterized in that connector are frustum face wide at the top and narrow at the bottom.
4. drilling fluid cleaner circulating sub according to claim 1 and 2 is characterized in that connector and body are that one is fixed.
5. drilling fluid cleaner circulating sub according to claim 3 is characterized in that connector and body are that one is fixed.
6. a drilling fluid cleaner circulation pipe string that uses claim 1 or 2 or 3 or 4 or 5 described drilling fluid cleaner circulating subs is characterized in that comprising kelly bar, drilling fluid cleaner circulating sub, protection joint and drilling rod; The inboard, upper end of the lower outside of kelly bar and drilling fluid cleaner circulating sub is fixedly installed togather through screw thread; The lower outside of drilling fluid cleaner circulating sub is fixedly installed togather through screw thread with the upper inner of protection joint, and the lower inside of protection joint and the inboard, upper end of drilling rod are fixedly installed togather.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220237003 CN202596598U (en) | 2012-05-24 | 2012-05-24 | Drilling fluid filter circulation short section and drilling fluid filter circulation pipe string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220237003 CN202596598U (en) | 2012-05-24 | 2012-05-24 | Drilling fluid filter circulation short section and drilling fluid filter circulation pipe string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202596598U true CN202596598U (en) | 2012-12-12 |
Family
ID=47314145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220237003 Expired - Fee Related CN202596598U (en) | 2012-05-24 | 2012-05-24 | Drilling fluid filter circulation short section and drilling fluid filter circulation pipe string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202596598U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104120983A (en) * | 2014-08-08 | 2014-10-29 | 中国海洋石油总公司 | Top driving system filter screen device with internal thread type kelly saver sub |
| EP3140502A4 (en) * | 2014-05-08 | 2018-01-24 | Baker Hughes Incorporated | Filter and related methods for use during wellbore operations |
-
2012
- 2012-05-24 CN CN 201220237003 patent/CN202596598U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3140502A4 (en) * | 2014-05-08 | 2018-01-24 | Baker Hughes Incorporated | Filter and related methods for use during wellbore operations |
| CN104120983A (en) * | 2014-08-08 | 2014-10-29 | 中国海洋石油总公司 | Top driving system filter screen device with internal thread type kelly saver sub |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20160524 |