CN103670317A - Simulation pipe string rigidity pigging method - Google Patents
Simulation pipe string rigidity pigging method Download PDFInfo
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- CN103670317A CN103670317A CN201310662837.8A CN201310662837A CN103670317A CN 103670317 A CN103670317 A CN 103670317A CN 201310662837 A CN201310662837 A CN 201310662837A CN 103670317 A CN103670317 A CN 103670317A
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Abstract
The invention relates to a well completion pigging method of a directional well, a horizontal well and a large-displacement well, in particular to a simulation pipe string rigidity pigging method. The method includes the following steps that the size and the specification of a pigging centering device needing to be used are adjusted according to the condition of a well in the construction process, a drilling assembly is reasonably combined, a secondary pigging mode is adopted, testability pigging is conducted first, the construction drilling assembly and parameters are the same as those of a conventional pigging mode, and the drilling assembly comprises a lead, a short drill pipe, an anti-jamming centering device, a drill collar, a heavy weight drill pipe and a drill pipe; afterwards, simulation pigging is carried out, and the drilling assembly comprises a lead with a well wall reaming and trimming function, a short drill pipe, an anti-jamming centering device, a drill collar, a twist-reducing anti-jamming centering device, a heavy weight drill pipe and a drill pipe. By the adoption of the method, well cleaning is achieved, well tracks are more expedite and smooth, the tripping-in state of a completion pipe string is fully simulated, the purpose that a casing string can be tripped in smoothly is achieved, the construction method is simple, convenient and visual, and the pigging effect is good.
Description
Technical field:
The present invention relates to a kind of directional well, horizontal well, extended reach well completion drifting method, particularly a kind of simulation tubing string rigidity drifting method.
Background technology:
In horizontal well, the on-the-spot drilling process of directional well, often because not enough to the prediction of the deflecting ability of instrument, cause in directed drilling process, change frequently screw rod and (adjust screw rod angle, to reach the build angle rate of expection), meet hole trajectory control requirement, this has just caused the well track of real brill and design well track to have larger difference, drilled wellbore trajectories is rough, the completion setting of casing difficult problem such as be frequently hampered.
Summary of the invention:
The technical problem to be solved in the present invention is to provide a kind of simulation tubing string rigidity drifting method, and the method has realized clean well, makes well track more unobstructed smooth, fully simulation completion tubular column is lowered to state, reach the object that casing string is lowered to smoothly, construction method is easy, directly perceived, and drifting is effective.Overcome existing level well, directional well drilled wellbore trajectories is rough, the deficiency that completion setting of casing is frequently hampered.
The technical solution used in the present invention is: a kind of simulation tubing string rigidity drifting method, the method step is as follows: in work progress, according to the situation of well, adjust size and the specification of the drifting centralizer that needs use, reasonable combination drilling assembly, the mode of employing secondary drifting, first carries out tentative drifting, its construction drilling assembly and parameter are identical with conventional drifting mode, and its drilling assembly is: introduction+short drill pipe+anti-sticking centralizer+drill collar+heavy weight drill pipe+drilling rod; Carry out afterwards simulation drifting, its drilling assembly is: have introduction+short drill pipe+anti-sticking centralizer+drill collar of reaming hole finishing borehole wall function+subtract and turn round anti-sticking centralizer+heavy weight drill pipe+drilling rod; Experimental drifting first adopts high discharge capacity to circulate, to reach best effect of hole cleaning, simulation drifting subsequently, process in three stages, first the mode that 40 ° of well section employings before of hole deviation are directly lowered to, to being lowered to difficulty or the position of the card that is hampered, repeatedly operate, reach smoothly unobstructed till; Well section for hole deviation between 40 °-90 ° adopts every and carries out reaming, and has recorded frictional resistance and the moment of torsion of reaming, for setting of casing process, carries out reference; For net horizontal section or high angle hole section, can adopt the mode being directly lowered to, to being lowered to difficulty or the position of the card that is hampered, carry out reaming, until well is unobstructed.
The invention has the beneficial effects as follows: the present invention is owing to having adopted the mode of simulation drifting, thereby there is clean well, make the more unobstructed smooth effect of well track, fully simulation completion tubular column is lowered to state, reach the object that casing string is lowered to smoothly, construction method is easy, directly perceived, and drifting is effective.
Accompanying drawing explanation:
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
Fig. 1 is the structural representation of the drilling assembly of simulation drifting of the present invention.
The specific embodiment:
As shown in Figure 1, a kind of simulation tubing string rigidity drifting method, the method step is as follows: in work progress, according to the situation of well, adjust size and the specification of the drifting centralizer that needs use, reasonable combination drilling assembly, adopt the mode of secondary drifting, first carry out tentative drifting, its construction drilling assembly and parameter are identical with conventional drifting mode, and its drilling assembly is: introduction+short drill pipe+anti-sticking centralizer+drill collar+heavy weight drill pipe+drilling rod; Carry out afterwards simulation drifting, its drilling assembly is: introduction 1+ short drill pipe+anti-sticking centralizer 2+ drill collar 3+ with reaming hole finishing borehole wall function subtracts and turns round anti-sticking centralizer 4+ heavy weight drill pipe+drilling rod 5; Experimental drifting first adopts high discharge capacity to circulate, to reach best effect of hole cleaning, simulation drifting subsequently, process in three stages, first the mode that 40 ° of well section employings before of hole deviation are directly lowered to, to being lowered to difficulty or the position of the card that is hampered, repeatedly operate, reach smoothly unobstructed till; Well section for hole deviation between 40 °-90 ° adopts every and carries out reaming, and has recorded frictional resistance and the moment of torsion of reaming, for setting of casing process, carries out reference; For net horizontal section or high angle hole section, can adopt the mode being directly lowered to, to being lowered to difficulty or the position of the card that is hampered, carry out reaming, until well is unobstructed.Adopt reaming mode to be lowered to, can be well by directional well section drilling process, the tortuous rough problem of well causing that changes of hole curvature causing due to frequent replacing screw rod overcomes, simultaneously because slip is crept into and hocketing that rotating disk creeps into, make well occur numerous shoulders, by reaming, can overcome well borehole wall shoulder, thereby make with drilling well eye more unobstructed, simultaneously can the scraping borehole wall by simulation drifting, clean well, well section for moment of torsion and frictional resistance increasing can be dredged well, and then be lowered to smoothly for completion tubular column the reference that provides strong, guaranteed being lowered to smoothly of completion tubular column simultaneously.
Be understandable that, above about specific descriptions of the present invention, only for being described, the present invention is not limited to the described technical scheme of the embodiment of the present invention, those of ordinary skill in the art is to be understood that, still can modify or be equal to replacement the present invention, to reach identical technique effect; As long as meet, use needs, all within protection scope of the present invention.
Claims (1)
1. simulate tubing string rigidity drifting method for one kind, it is characterized in that: the method step is as follows: in work progress, according to the situation of well, adjust size and the specification of the drifting centralizer that needs use, reasonable combination drilling assembly, the mode of employing secondary drifting, first carries out tentative drifting, its construction drilling assembly and parameter are identical with conventional drifting mode, and its drilling assembly is: introduction+short drill pipe+anti-sticking centralizer+drill collar+heavy weight drill pipe+drilling rod; Carry out afterwards simulation drifting, its drilling assembly is: have introduction (1)+short drill pipe+anti-sticking centralizer (the 2)+drill collar (3) of reaming hole finishing borehole wall function+subtract and turn round anti-sticking centralizer (4)+heavy weight drill pipe+drilling rod (5); Experimental drifting first adopts high discharge capacity to circulate, to reach best effect of hole cleaning, simulation drifting subsequently, process in three stages, first the mode that 40 ° of well section employings before of hole deviation are directly lowered to, to being lowered to difficulty or the position of the card that is hampered, repeatedly operate, reach smoothly unobstructed till; Well section for hole deviation between 40 °-90 ° adopts every and carries out reaming, and has recorded frictional resistance and the moment of torsion of reaming, for setting of casing process, carries out reference; For net horizontal section or high angle hole section, can adopt the mode being directly lowered to, to being lowered to difficulty or the position of the card that is hampered, carry out reaming, until well is unobstructed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310662837.8A CN103670317A (en) | 2013-12-06 | 2013-12-06 | Simulation pipe string rigidity pigging method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310662837.8A CN103670317A (en) | 2013-12-06 | 2013-12-06 | Simulation pipe string rigidity pigging method |
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| CN103670317A true CN103670317A (en) | 2014-03-26 |
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| CN201310662837.8A Pending CN103670317A (en) | 2013-12-06 | 2013-12-06 | Simulation pipe string rigidity pigging method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131782A (en) * | 2014-07-10 | 2014-11-05 | 上海大学 | Drifting bottom hole assembly determining method |
| CN107304657A (en) * | 2016-04-19 | 2017-10-31 | 中国石油天然气股份有限公司 | Centralizer and simulation drifting tubing string |
| CN107676042A (en) * | 2017-10-26 | 2018-02-09 | 中国石油集团西部钻探工程有限公司 | Oil drilling three-dimensional horizontal well rigidity drifting BHA |
| CN109322618A (en) * | 2018-10-19 | 2019-02-12 | 成都科盛石油科技有限公司 | Heterogeneous shale gas well Reservoir Section finishing drilling method |
| CN110984924A (en) * | 2019-12-20 | 2020-04-10 | 新疆恒智伟业石油工程技术开发有限公司 | Easy-drilling-and-grinding open hole well completion pipe string construction method |
| CN111287662A (en) * | 2020-04-05 | 2020-06-16 | 新疆正通石油天然气股份有限公司 | Shale stratum drilling open hole drifting method |
Citations (5)
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| CN85100990A (en) * | 1985-04-01 | 1986-08-13 | 大港石油管理局科技处 | Straight well cable drifting process and drifting device |
| CN1032056A (en) * | 1987-09-13 | 1989-03-29 | 华北石油管理局第三采油厂 | Fixed style multipurpose well clearer |
| US20060278405A1 (en) * | 2005-06-14 | 2006-12-14 | Turley Rocky A | Method and apparatus for friction reduction in a downhole tool |
| CN201074483Y (en) * | 2007-09-13 | 2008-06-18 | 刘伟 | Centralizer for prevent horizontal well oil tube from blocking and reducing friction |
| EP2402548A1 (en) * | 2006-11-21 | 2012-01-04 | Swelltec Limited | Downhole apparatus and method |
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2013
- 2013-12-06 CN CN201310662837.8A patent/CN103670317A/en active Pending
Patent Citations (5)
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| CN85100990A (en) * | 1985-04-01 | 1986-08-13 | 大港石油管理局科技处 | Straight well cable drifting process and drifting device |
| CN1032056A (en) * | 1987-09-13 | 1989-03-29 | 华北石油管理局第三采油厂 | Fixed style multipurpose well clearer |
| US20060278405A1 (en) * | 2005-06-14 | 2006-12-14 | Turley Rocky A | Method and apparatus for friction reduction in a downhole tool |
| EP2402548A1 (en) * | 2006-11-21 | 2012-01-04 | Swelltec Limited | Downhole apparatus and method |
| CN201074483Y (en) * | 2007-09-13 | 2008-06-18 | 刘伟 | Centralizer for prevent horizontal well oil tube from blocking and reducing friction |
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| 冀东石油勘探开发公司井下作业公司: "《井下作业与试油技术实用手册》", 30 June 2003, article "通井", pages: 36 * |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131782A (en) * | 2014-07-10 | 2014-11-05 | 上海大学 | Drifting bottom hole assembly determining method |
| CN107304657A (en) * | 2016-04-19 | 2017-10-31 | 中国石油天然气股份有限公司 | Centralizer and simulation drifting tubing string |
| CN107304657B (en) * | 2016-04-19 | 2020-08-07 | 中国石油天然气股份有限公司 | Centralizer and simulation drifting tubular column |
| CN107676042A (en) * | 2017-10-26 | 2018-02-09 | 中国石油集团西部钻探工程有限公司 | Oil drilling three-dimensional horizontal well rigidity drifting BHA |
| CN109322618A (en) * | 2018-10-19 | 2019-02-12 | 成都科盛石油科技有限公司 | Heterogeneous shale gas well Reservoir Section finishing drilling method |
| CN110984924A (en) * | 2019-12-20 | 2020-04-10 | 新疆恒智伟业石油工程技术开发有限公司 | Easy-drilling-and-grinding open hole well completion pipe string construction method |
| CN111287662A (en) * | 2020-04-05 | 2020-06-16 | 新疆正通石油天然气股份有限公司 | Shale stratum drilling open hole drifting method |
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Application publication date: 20140326 |