CN104594816A - Stiffness reducing anti-drag device applied to horizontal well completion pipe column - Google Patents
Stiffness reducing anti-drag device applied to horizontal well completion pipe column Download PDFInfo
- Publication number
- CN104594816A CN104594816A CN201310531219.XA CN201310531219A CN104594816A CN 104594816 A CN104594816 A CN 104594816A CN 201310531219 A CN201310531219 A CN 201310531219A CN 104594816 A CN104594816 A CN 104594816A
- Authority
- CN
- China
- Prior art keywords
- work
- processed
- horizontal well
- special material
- inner core
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- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000005452 bending Methods 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims abstract description 4
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 3
- 239000006096 absorbing agent Substances 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 150000002843 nonmetals Chemical class 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 8
- 239000007769 metal material Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000003129 oil well Substances 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
- 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
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a stiffness reducing anti-drag device applied to a horizontal well completion pipe column. The stiffness reducing anti-drag device applied to the horizontal well completion pipe column comprises a working outer barrel, a special material barrel and a working inner barrel. The special material barrel is connected to the upper end of the working inner barrel and put into the working outer barrel with the working inner barrel from the bottom of the working outer barrel; a bottom hanging ring used for limiting positions is arranged at the lower end of the working outer barrel and the upper end of the working inner cylinder. The special material barrel is made from metal with smaller bending stiffness or non-metal materials. By means of the stiffness reducing anti-drag device applied to the horizontal well completion pipe column, the problem exists in a prior completion pipe column that the local stiffness is too large caused by overstocked connection of large size tools is solved, and the safety of a completion project is furthest improved. The stiffness reducing anti-drag device applied to the horizontal well completion pipe column has the advantages that the structure is simple, the working is reliable, the function is perfect, the applicability is wide, the cost is low, the requirements for working conditions are low, the field application is convenient, the technical requirements for a construction team are low, and the construction program is the same as a conventional completion process.
Description
Technical field
To the present invention relates in horizontal well completion tubular pile auxiliary under enter instrument, specifically a kind of being applied in falls firm resistance absorber in horizontal well completion tubular pile.
Background technology
Because horizontal well technology is in the large-scale promotion in oil field, the problem that some initial stages are not considered is also following, as Short Radius Horizontal Wells, the problem of difficulty is entered under the hole conditions such as long horizontal sections horizontal well or the larger horizontal well of the degree of depth all exist completion tubular column in Completion Operations, in the irregular well example of well track particularly caused because of misoperation in some complex geologic conditions and drilling process, enter under completion tubular column and be very easily hampered.Not in place under causing tubing string.This kind of situation is once occur, the instrument on tubing string will be caused to misplace, casing cementing mode is not bad in this way, just loss point oil layer section, but if special well, picture needs pressure break completion or screen casing crest water flooding bricklayer's skill completion all can cause packer card seal point to misplace, light then cause Party A to lose several sections of exploitation oil reservoirs, heavy then cause whole process failure, lower step construction cannot be carried out, even whole oil well is scrapped, and loses extremely serious.And in existing completion technique, still there is no the instrument that effectively can reduce tubing string local stiffness, local stiffness particularly between large scale work, therefore develop a kind of special tool that then can reduce tubing string excessive dog-leg degree in well track by reducing tubing string local stiffness and just seem particularly important.
Summary of the invention
The object of this invention is to provide a kind of being applied in and fall firm resistance absorber in horizontal well completion tubular pile, solving horizontal well completion tubular pile and enter difficult problem under causing because dog-leg in wellbore trajectory is spent large, reducing the overall frictional resistance of tubing string by reducing tubing string local stiffness.
In order to reach above-mentioned purpose, present invention employs following technical scheme, a kind of being applied in falls firm resistance absorber in horizontal well completion tubular pile, comprise work urceolus, special material cylinder, work inner core, described special material cylinder is connected to work inner core upper end, then loads work outer barrel by the bottom of work urceolus together; The lower end of described work urceolus is provided with spacing bottom hung ring with work inner core upper end position.
The standard of the described special material cylinder linked together and work inner core loading work outer barrel is at least will enter work outer barrel special material wound packages completely; Described special material cylinder is that metal that bending stiffness is less or nonmetals are made.
Described work inner core upper end outer wall processes the sphere that two convex-concaves are connected respectively, two spheres respectively with the sphere Corresponding matching that arranges on work urceolus and bottom hung ring.
Described work inner core internal diameter is identical with special material cylinder internal diameter, and upper end is processed with the screw thread matched with special material cylinder lower end screw thread; Work inner core bottom outer wall is processed with casing threads.
The inwall upper end of described work urceolus is processed with the limited step of casing threads and special material cylinder, and lower end inner wall is processed with the connecting thread that mates with bottom hung ring and its top is processed with the concave ball surfaces mated with the inner core spirogyrate sphere that works.
Described special material cylinder is the isometrical tubular of upper coarse and lower fine inwall, and external wall of upper portion is processed with at least 1 seal groove, lower end is processed with the coupling screw thread be connected with the inner core upper end that works.
Described bottom hung ring inwall upper end is processed with the convex spherical inside surface matched with the inner core top exterior walls concave outer surface that works, and inwall is processed as the upper coarse and lower fine conical surface of certain angle, and seal groove is processed with below inwall, outer wall upper end is processed with the connecting thread matched with the urceolus that works.
Compared to prior art, the present invention has following beneficial effect:
Solve the completion tubular column problem that local stiffness that is that cause is excessive because the connection of large scale instrument is overstocked in the past, improve the safety of Well Completion Engineering of Oil Reservoirs to greatest extent, and this tool construction is simple, reliable operation, perfect in shape and function, applicability is wide, and cost is low, requires low to service condition.On-the-spot application is convenient, and lower to the technical requirements of construction team, construction sequence is identical with conventional completed well process, this instrument can be placed any desired position of horizontal well completion tubular pile, without the need to any additional step.Therefore, there is significant economic benefit and larger popularization and application space.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation falling firm resistance absorber be applied in horizontal well completion tubular pile of the present invention.
In figure: work urceolus 1, special material cylinder 2, work inner core 3, bottom hung ring 4.
Detailed description of the invention
Detailed description for the present invention and technology contents, coordinate accompanying drawing to be described as follows, but accompanying drawing only provides with reference to the use with explanation, is not used for being limited the present invention.
Shown in figure 1, a kind of being applied in falls firm resistance absorber in horizontal well completion tubular pile, special material cylinder 2 and work inner core 3 are by after screwed connection, loaded by the bottom of work urceolus 1, bottom hung ring 4 is inserted in from work inner core 3 bottom and is connected, by spacing for work inner core 3 by screw thread and working bottom urceolus 1.Wherein special material cylinder 2 is that metal that bending stiffness is less or nonmetals form (as abrasion resistance engineering plastics etc.), work inner core 3 outer wall top process respectively two convex-concaves be connected and respectively with the sphere of work urceolus 1 and bottom hung ring 4 Corresponding matching.
Work inner core internal diameter is identical with special material cylinder internal diameter, and upper end is processed with the screw thread matched with special material cylinder lower end screw thread; Work inner core bottom outer wall is processed with casing threads.The inwall upper end of described work urceolus is processed with the limited step of casing threads and special material cylinder, and lower end inner wall is processed with the connecting thread that mates with bottom hung ring and its top is processed with the concave ball surfaces mated with the inner core spirogyrate sphere that works.Described special material cylinder is the isometrical tubular of upper coarse and lower fine inwall, and external wall of upper portion is processed with at least two seal grooves, lower end is processed with the coupling screw thread be connected with the inner core upper end that works.Described bottom hung ring inwall upper end is processed with the convex spherical inside surface matched with the inner core top exterior walls concave outer surface that works, and inwall is processed as the upper coarse and lower fine conical surface of certain angle, and seal groove is processed with below inwall, outer wall upper end is processed with the connecting thread matched with the urceolus that works.
This tool construction is simple, reliable operation, perfect in shape and function, and applicability is wide, and cost is low, requires low to service condition.On-the-spot application is convenient, lower to the technical requirements of construction team, construction sequence is identical with conventional completed well process, without any and outside step, frictional resistance is entered under effectively reducing the local stiffness of horizontal segment completion tubular column and whole tubing string, improve the tripablity of completion tubular column, farthest ensure the safety of Well Completion Engineering of Oil Reservoirs.
The foregoing is only preferred embodiment of the present invention, be not used to limit the scope of the claims of the present invention, other use the equivalence of patent spirit of the present invention to change, and all should all belong to the scope of the claims of the present invention.
Claims (7)
1. one kind is applied in and falls firm resistance absorber in horizontal well completion tubular pile, it is characterized in that, comprise work urceolus, special material cylinder, work inner core, described special material cylinder is connected to work inner core upper end, then loads work outer barrel by the bottom of work urceolus together; The lower end of described work urceolus is provided with spacing bottom hung ring with work inner core upper end position.
2. a kind of being applied according to claim 1 falls firm resistance absorber in horizontal well completion tubular pile, it is characterized in that, described in the standard of the special material cylinder that links together and work inner core loading work outer barrel at least completely special material wound packages will be entered work outer barrel; Described special material cylinder is that metal that bending stiffness is less or nonmetals are made.
3. a kind of being applied according to claim 1 falls firm resistance absorber in horizontal well completion tubular pile, it is characterized in that, described work inner core upper end outer wall processes the sphere that two convex-concaves are connected respectively, two spheres respectively with the sphere Corresponding matching that arranges on work urceolus and bottom hung ring.
4. a kind of being applied according to claim 3 falls firm resistance absorber in horizontal well completion tubular pile, and it is characterized in that, described work inner core internal diameter is identical with special material cylinder internal diameter, and upper end is processed with the screw thread matched with special material cylinder lower end screw thread; Work inner core bottom outer wall is processed with casing threads.
5. a kind of being applied according to claim 1 falls firm resistance absorber in horizontal well completion tubular pile, it is characterized in that, the inwall upper end of described work urceolus is processed with the limited step of casing threads and special material cylinder, and lower end inner wall is processed with the connecting thread that mates with bottom hung ring and its top is processed with the concave ball surfaces mated with the inner core spirogyrate sphere that works.
6. a kind of being applied according to claim 1 falls firm resistance absorber in horizontal well completion tubular pile, it is characterized in that, described special material cylinder is the isometrical tubular of upper coarse and lower fine inwall, external wall of upper portion is processed with at least 1 seal groove, lower end is processed with the coupling screw thread be connected with the inner core upper end that works.
7. a kind of being applied according to claim 1 falls firm resistance absorber in horizontal well completion tubular pile, it is characterized in that, described bottom hung ring inwall upper end is processed with the convex spherical inside surface matched with the inner core top exterior walls concave outer surface that works, and inwall is processed as the upper coarse and lower fine conical surface of certain angle, and seal groove is processed with below inwall, outer wall upper end is processed with the connecting thread matched with the urceolus that works.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310531219.XA CN104594816B (en) | 2013-11-01 | 2013-11-01 | A kind of firm resistance absorber of the fall applied in horizontal well completion tubular pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310531219.XA CN104594816B (en) | 2013-11-01 | 2013-11-01 | A kind of firm resistance absorber of the fall applied in horizontal well completion tubular pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104594816A true CN104594816A (en) | 2015-05-06 |
| CN104594816B CN104594816B (en) | 2016-09-14 |
Family
ID=53120826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310531219.XA Expired - Fee Related CN104594816B (en) | 2013-11-01 | 2013-11-01 | A kind of firm resistance absorber of the fall applied in horizontal well completion tubular pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104594816B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973023A (en) * | 2017-12-28 | 2019-07-05 | 中石化石油工程技术服务有限公司 | A kind of telescopic setting of casing segmentation tool |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1484895A1 (en) * | 1987-05-26 | 1989-06-07 | Ukhtinskij Ind I | Directional drilling device |
| CN2286494Y (en) * | 1997-04-04 | 1998-07-22 | 新疆石油管理局钻井工艺研究院 | Joint |
| CN2608672Y (en) * | 2003-03-07 | 2004-03-31 | 中国石化胜利油田有限公司采油工艺研究院 | Oil pumping rod flexible connecting device |
| CN2641267Y (en) * | 2003-07-24 | 2004-09-15 | 辽河石油勘探局曙光工程技术处 | Ball head shaped, hanging type jointing hoop |
| CN2674069Y (en) * | 2004-01-08 | 2005-01-26 | 新疆石油管理局钻井工艺研究院 | Actived joint for large curvature sleeve |
| CN2916099Y (en) * | 2006-06-08 | 2007-06-27 | 辽河石油勘探局 | Torsion type universal joint for horizontal well |
| CN200985748Y (en) * | 2006-12-21 | 2007-12-05 | 新疆石油管理局钻井工艺研究院 | Rotetable type casing tube flexible joint |
| CN201292782Y (en) * | 2008-10-22 | 2009-08-19 | 中国石油集团长城钻探工程有限公司 | Canula mobile type cardan joint |
| CN201581819U (en) * | 2009-11-27 | 2010-09-15 | 中国石油集团长城钻探工程有限公司 | Rotary joint for well completion |
| CN102635311A (en) * | 2012-05-03 | 2012-08-15 | 西南石油大学 | Orienting device for drilling of radial horizontal well |
| CN203531762U (en) * | 2013-11-01 | 2014-04-09 | 中国石油集团渤海钻探工程有限公司油气合作开发分公司 | Rigidity-reducing resistance reduction device applied to horizontal well completion tubular pile |
-
2013
- 2013-11-01 CN CN201310531219.XA patent/CN104594816B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1484895A1 (en) * | 1987-05-26 | 1989-06-07 | Ukhtinskij Ind I | Directional drilling device |
| CN2286494Y (en) * | 1997-04-04 | 1998-07-22 | 新疆石油管理局钻井工艺研究院 | Joint |
| CN2608672Y (en) * | 2003-03-07 | 2004-03-31 | 中国石化胜利油田有限公司采油工艺研究院 | Oil pumping rod flexible connecting device |
| CN2641267Y (en) * | 2003-07-24 | 2004-09-15 | 辽河石油勘探局曙光工程技术处 | Ball head shaped, hanging type jointing hoop |
| CN2674069Y (en) * | 2004-01-08 | 2005-01-26 | 新疆石油管理局钻井工艺研究院 | Actived joint for large curvature sleeve |
| CN2916099Y (en) * | 2006-06-08 | 2007-06-27 | 辽河石油勘探局 | Torsion type universal joint for horizontal well |
| CN200985748Y (en) * | 2006-12-21 | 2007-12-05 | 新疆石油管理局钻井工艺研究院 | Rotetable type casing tube flexible joint |
| CN201292782Y (en) * | 2008-10-22 | 2009-08-19 | 中国石油集团长城钻探工程有限公司 | Canula mobile type cardan joint |
| CN201581819U (en) * | 2009-11-27 | 2010-09-15 | 中国石油集团长城钻探工程有限公司 | Rotary joint for well completion |
| CN102635311A (en) * | 2012-05-03 | 2012-08-15 | 西南石油大学 | Orienting device for drilling of radial horizontal well |
| CN203531762U (en) * | 2013-11-01 | 2014-04-09 | 中国石油集团渤海钻探工程有限公司油气合作开发分公司 | Rigidity-reducing resistance reduction device applied to horizontal well completion tubular pile |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973023A (en) * | 2017-12-28 | 2019-07-05 | 中石化石油工程技术服务有限公司 | A kind of telescopic setting of casing segmentation tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104594816B (en) | 2016-09-14 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20160914 Termination date: 20171101 |