CN202338238U - Rock cutting cleaning tool for window opening of multilateral wells - Google Patents
Rock cutting cleaning tool for window opening of multilateral wells Download PDFInfo
- Publication number
- CN202338238U CN202338238U CN 201120473336 CN201120473336U CN202338238U CN 202338238 U CN202338238 U CN 202338238U CN 201120473336 CN201120473336 CN 201120473336 CN 201120473336 U CN201120473336 U CN 201120473336U CN 202338238 U CN202338238 U CN 202338238U
- Authority
- CN
- China
- Prior art keywords
- processed
- tool body
- multilateral wells
- window opening
- cleaning tool
- 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
Links
- 238000005520 cutting process Methods 0.000 title abstract description 8
- 239000011435 rock Substances 0.000 title abstract 5
- 238000004140 cleaning Methods 0.000 title abstract 4
- 238000005553 drilling Methods 0.000 claims abstract description 24
- 239000012530 fluid Substances 0.000 abstract description 17
- 238000009825 accumulation Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000004233 talus Anatomy 0.000 description 1
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Abstract
The utility model relates to the technical field of multilateral wells, in particular to a rock cutting cleaning tool for window opening of multilateral wells. The cleaning tool comprises a tool body; a through hole is arranged in the center of the tool body; drill pipe buttons are processed on the upper end and the lower end of the tool body; a semi-chord helical groove is processed in the middle of the outside surface of the tool body, a single groove is processed on the upper end of the semi-chord helical groove on the tool body, and a double groove is processed on the lower end of the semi-chord helical groove on the tool body. According to the rock cutting cleaning tool for the window opening of the multilateral well, the carrying rate of drilling fluid with the rock cuttings is improved, the defect of the existing whipstocks that accumulation of the rock cuttings nearby a window and in an annular space between a whipstock and the inner wall of a casing during the window opening on the casing and sidetrack drilling is overcome, and the construction risk of the multilateral wells and the production cost are reduced.
Description
Technical field:
The utility model relates to a kind of Multilateral Wells technical field, particularly a kind of Multilateral Wells landwaste cleanout tool of windowing.
Background technology:
The Multilateral Wells technology had obtained very big development in recent years, and was further perfect but its kit also needs.Multilateral Wells utilizes whipstock to go out branch well hole at sleeve pipe uplifting window sidetracking; Often pile up landwaste at the window place; If probably causing, untimely removing mills the awl bit freezing; Simultaneously also have a large amount of landwaste often at the annular space place of whipstock and internal surface of sleeve pipe, the accumulation of landwaste makes the salvaging whipstock will overcome very big frictional resistance and brings very big difficulty to construction.
The utility model content:
The technical problem that the utility model will solve provides a kind of Multilateral Wells landwaste cleanout tool of windowing; This tool implementation improve the carrying rate of drilling fluid to landwaste; Avoid near the window and the accumulation of whipstock and internal surface of sleeve pipe annular space place landwaste, reduce Multilateral Wells construction risk and cost of production.Overcome existing whipstock deficiency at the easy accumulation in the annular space place of window place and whipstock and internal surface of sleeve pipe landwaste when sleeve pipe uplifting window sidetracking.
The technical scheme that the utility model is taked is: a kind of Multilateral Wells landwaste cleanout tool of windowing comprises body; The body center has through hole, and two ends are processed with the drilling rod button up and down, and this external surface middle part is processed with the semifocal chord spiral grooves, is processed with single groove on the body of semifocal chord spiral grooves upper end, is processed with dual-cavity on the body of lower end.
The beneficial effect of the utility model is: the utility model is owing to adopted the structure in this external surface middle part processing semifocal chord spiral grooves; Thereby can make near the drilling fluid the instrument produce screw, and produce turbulent flow, make the landwaste in the drilling fluid do random motion; Thereby improve the carrying rate of drilling fluid to landwaste; Reduce landwaste near window with the accumulation at whipstock and internal surface of sleeve pipe annular space place, reduced Multilateral Wells construction risk and cost of production, improved branch well drilling completion success rate.
Description of drawings:
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further detailed explanation.
Fig. 1 is the structural representation of the utility model.
Fig. 2 is that the A-A of Fig. 1 is to sectional drawing.
The specific embodiment:
Like Fig. 1, shown in Figure 2, a kind of Multilateral Wells landwaste cleanout tool of windowing comprises body 1; Body 1 center has through hole; Two ends are processed with the drilling rod button up and down; Body 1 external surface middle part is processed with semifocal chord spiral grooves 3; Semifocal chord spiral grooves 3 makes drilling fluid generation helical flow up and down along with drilling rod rotates, be processed with single groove 2 on the body 1 of semifocal chord spiral grooves 3 upper ends, is processed with dual-cavity 4 on the body 1 of lower end.Because the rotation of semifocal chord spiral grooves 3 makes that drilling fluid produces screw up and down; Drilling fluid is in turbulent condition; The change of flow state of drilling fluid changes the characteristics of motion that is mixed in landwaste in the drilling fluid simultaneously; The design of single groove 2, dual-cavity 4 provides cushion space for the unexpected variation of this solid-liquid fluidised form, the drilling fluid cutting carring is changed with even velocity move upward.
Normally window when creeping into, drilling fluid utilizes viscosity and the normal circulation flow velocity of the drilling fluid cutting carring that circulates between the annular space of drill string and sleeve pipe.When using the utility model construction, the utility model is installed in to window mills between awl and the drill collar, the down well placement of utilizing short drill pipe to regulate the utility model is fixed near the window.Drilling fluid is in the annular space circulation gets into semifocal chord spiral grooves 3 runners; Semifocal chord spiral grooves 3 makes the drilling fluid that gets into groove produce screw along with drill string rotates; Become turbulent flow, make the landwaste in the drilling fluid do random motion, thereby improved the ability of drilling fluid cutting carring; Reduce the accumulation of window place landwaste, prevent to mill the drilling failure of awl bit freezing at window because of talus deposit.
It is understandable that; More than about the specific descriptions of the utility model; Only be used to the utility model is described and be not to be subject to the described technical scheme of the utility model embodiment; Those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model, to reach identical technique effect; As long as satisfy the use needs, all within the protection domain of the utility model.
Claims (1)
1. Multilateral Wells landwaste cleanout tool of windowing comprises body (1); It is characterized in that: body (1) center has through hole; Two ends are processed with the drilling rod button up and down; Body (1) external surface middle part is processed with semifocal chord spiral grooves (3), is processed with single groove (2) on the body (1) of semifocal chord spiral grooves (3) upper end, is processed with dual-cavity (4) on the body of lower end (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120473336 CN202338238U (en) | 2011-11-24 | 2011-11-24 | Rock cutting cleaning tool for window opening of multilateral wells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120473336 CN202338238U (en) | 2011-11-24 | 2011-11-24 | Rock cutting cleaning tool for window opening of multilateral wells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202338238U true CN202338238U (en) | 2012-07-18 |
Family
ID=46486931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120473336 Expired - Fee Related CN202338238U (en) | 2011-11-24 | 2011-11-24 | Rock cutting cleaning tool for window opening of multilateral wells |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202338238U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374528A (en) * | 2019-07-29 | 2019-10-25 | 中海石油(中国)有限公司湛江分公司 | ECD drilling well liquid jetting device is reduced in a kind of deepwater drilling |
-
2011
- 2011-11-24 CN CN 201120473336 patent/CN202338238U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374528A (en) * | 2019-07-29 | 2019-10-25 | 中海石油(中国)有限公司湛江分公司 | ECD drilling well liquid jetting device is reduced in a kind of deepwater drilling |
| CN110374528B (en) * | 2019-07-29 | 2023-09-29 | 中海石油(中国)有限公司湛江分公司 | Drilling fluid injection device for reducing ECD in deep water drilling |
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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: 20120718 Termination date: 20131124 |