CN202280425U - Upper and lower suspension type automatic anti-sloping drilling tool - Google Patents
Upper and lower suspension type automatic anti-sloping drilling tool Download PDFInfo
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- CN202280425U CN202280425U CN2011204326469U CN201120432646U CN202280425U CN 202280425 U CN202280425 U CN 202280425U CN 2011204326469 U CN2011204326469 U CN 2011204326469U CN 201120432646 U CN201120432646 U CN 201120432646U CN 202280425 U CN202280425 U CN 202280425U
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Abstract
The utility model relates to an upper and lower suspension type automatic anti-sloping drilling tool which mainly solves the problem that in the passive anti-sloping technology of the prior art, packed hole assemblies and pendulum drilling tools are adopted on an anti-sloping and quick-drilling site in a high steep structure to sacrifice the mechanical drilling speed for the well body quality. The drilling tool provided is characterized in that an upper suspension and a lower suspension are respectively arranged at the variable diameter parts at the upper end and the lower end of the body, the upper suspension and the lower suspension suspend an eccentric cylinder in the body, the fan-shaped opening of an upper rotary valve is symmetrical with the gravity center of the eccentric cylinder, the large diameters of piston cylinders and pistons are arranged in the big holes of the body, a lower rotary valve is axially positioned by the three piston cylinders, and the diversion ports in the piston cylinders are communicated with the over-current tunnel inside the lower rotary valve and the pressure release holes in the pistons. The upper and lower suspension type automatic anti-sloping drilling tool can realize active and proper sloping prevention and can free drilling pressure at the same time, and the drilling tool can improve borehole quality and mechanical rotation speed.
Description
Technical field
The utility model relates to the corollary apparatus of oil, gas drilling, particularly a kind of suspended automatic anti-deviated borehole instrument up and down.
Background technology
The work of exploration and development amount on high steep structure, high inclination-angle stratum is increasing in the exploration and development field at present, and the hole deviation problem has become to restrict quality, benefit and even the key of success of these regional exploration developments to a certain extent.The automatic vertical drilling technology is a kind of novel drilling technology, can realize initiatively, anti-oblique in good time in, effectively liberate the pressure of the drill, greatly improve drilling efficiency and safety.Deviation prevention and fast for the steep structure of height; What on-the-spot use was more is packed hole assembly and pendulum assembly; With fast the boring of packed hole assembly pressurization is conventional anti-tiltedly technology; But effect is often unsatisfactory, and then hangs up and beats well straightening with pendulum assembly, and this is a kind of passive anti-tiltedly technology that exchanges wellbore quality with the sacrifice rate of penetration for.
Summary of the invention
The utility model technical problem to be solved is the on-the-spot passive anti-tiltedly problem of technology of using packed hole assembly and pendulum assembly to exchange wellbore quality for the sacrifice rate of penetration of deviation prevention and fast that overcomes the steep structure of height that exists in the background technology; And a kind of up and down suspended automatic anti-deviated borehole instrument is provided; Be somebody's turn to do suspended automatic anti-deviated borehole instrument up and down; Can realize initiatively, can also liberate the pressure of the drill anti-oblique in good time the time, improve hole quality, improve mechanical separator speed.
The utility model solves its problem and can reach through following technical scheme: suspended automatic anti-deviated borehole instrument comprises top connection, body up and down, and the body center is a through hole, the top connection that is threaded of body top; Described body upper end and lower end inwall have undergauge section from top to bottom; There are the suspension of going up and suspension down in the reducing place of body upper end and lower end seat respectively, and the upper ends of last suspension has the adjusting locating ring, and the adjusting locating ring other end is near in the top connection bottom; Last suspension lower central is installed with upper spindle in the hole; Bearing is housed on the upper spindle, and following suspension central upper portion is installed with lower spindle in the hole, and bearing is housed on the lower spindle; Upper spindle is fixedly connected on eccentric tube upper end, and lower spindle is fixedly connected on eccentric tube lower end; The lower spindle lower end is fixed in the centre bore of rotary valve, is equipped with spring between lower spindle lower end and last rotary valve; The fan-shaped opening of last rotary valve and eccentric tube center of gravity symmetry, following rotary valve upper face is processed with pod apertures to inside, and following rotary valve external surface has three through holes; Three through holes circumferentially are uniformly distributed with, and the footpath of through hole upwards has a large opening, and the body bottom is processed with three macropores; In three macropores piston rod is installed, the piston rod center is drilled with the piston rod flow-guiding mouth, and the big footpath and the piston of piston rod is installed on the body macropore; The path of piston rod is installed in down in the large opening of rotary valve; Following rotary valve is by three piston rod axial location, and the respectively corresponding piston rod of each through hole of following rotary valve has relief hole on the piston; Flow-guiding mouth on the piston rod and the overcurrent duct of following rotary valve inside, the relief hole UNICOM on the piston; Three macropores of body bottom are corresponding with three perforates on the following rotary valve, and the piston outside is equipped with the thrust palm, and the axial side of thrust palm is connected on the body through hinge.
The utility model and above-mentioned background compared with techniques can have following beneficial effect: suspended automatic anti-deviated borehole instrument is owing to adopt said structure up and down; The inner hang up and down that adopts; In the suspension bearing is being housed up and down; Eccentric tube two ends connect goes up lower spindle, and eccentric tube is rotated through last lower spindle; Between lower spindle and last rotary valve, spring is installed, gives pretightning force of last rotary valve through spring, making up and down, moushroom valve is close to; Realize initiatively, anti-oblique in good time in, can also liberate the pressure of the drill, improve hole quality, reduce construction risk, improve rate of penetration, better guarantee well track.
Description of drawings:
Accompanying drawing 1 is the structural representation (being illustrated as the two parts up and down that block) of the utility model;
Accompanying drawing 2 is structural representations of rotary valve on the utility model;
Accompanying drawing 3 is the structural representations on the top of accompanying drawing 1;
Accompanying drawing 4 is structural representations of the lower part of accompanying drawing 1.
Among the figure: 1-top connection, 2-body, the last suspension of 3-, 4-upper spindle, the eccentric tube of 5-; The 6-lower spindle, the 7-bearing, 8-is suspension down, the last rotary valve of 9-, rotary valve under the 10-; The 11-pod apertures, 12-piston rod, 13-piston, 14-thrust palm; 15-regulates locating ring, the fan-shaped opening of 16-, 17-relief hole, 18-limiting plate.
The specific embodiment:
To be described further the utility model below in conjunction with accompanying drawing:
Accompanying drawing 1 combines Fig. 3, shown in Figure 4, and suspended automatic anti-deviated borehole instrument comprises top connection 1, body 2 up and down, and body 2 centers are through hole; The top connection 1 that is threaded of body 2 tops, described body 2 upper ends and lower end inwall have undergauge section from top to bottom, and there are suspension of going up 3 and suspension 8 down in the reducing place of body 2 upper ends and lower end seat respectively; The upper ends of last suspension 3 has the locating ring 15 of adjusting; Regulate locating ring 15 other ends near in top connection 1 bottom, on hang in the 3 lower central holes and be installed with upper spindle 4, on the upper spindle 4 bearing is housed; Under hang in the 8 central upper portion holes and be installed with lower spindle 6; Bearing 7 is housed on the lower spindle 6, and upper spindle 4 is fixedly connected on eccentric tube 5 upper ends, and lower spindle 6 is fixedly connected on eccentric tube 5 lower ends; Lower spindle 6 lower ends are fixed in the centre bore of rotary valve 9, and 9 of lower spindle 6 lower ends and last rotary valves are equipped with spring; As shown in Figure 2, fan-shaped opening 16 is arranged, fan-shaped opening 16 and eccentric tube 5 centers of gravity symmetry on the last rotary valve 9; Following rotary valve 10 machined have pod apertures, and following rotary valve 10 external surfaces have three through holes, and three through holes circumferentially are uniformly distributed with; Upwards have a large opening in the footpath of through hole, body 2 bottoms are processed with three macropores, and piston rod 12 is installed in three macropores; Piston rod 12 centers are drilled with piston rod flow-guiding mouth 11; The big footpath and the piston 13 of piston rod 12 are installed on body 2 macropores, and the path of piston rod 12 is installed in down in the large opening of rotary valve 10, and following rotary valve 10 is by three piston rod 12 axial location; The respectively corresponding piston rod 12 of each through hole of following rotary valve 10 has relief hole 17 on the piston 13; Flow-guiding mouth on the piston rod 12 and the overcurrent duct of following rotary valve 10 inside, relief hole 17 UNICOMs on the piston 13; Three macropores of body 2 bottoms are corresponding with three perforates on the following rotary valve 10, and piston 13 outsides are equipped with thrust palm 14, and thrust palm 14 axial sides are connected on the body 2 through hinge.Described thrust palm 14 upper and lower sides are equipped with limiting plate 18, and limiting plate 18 is fixed on the body 2.
Be somebody's turn to do the principle of suspended automatic anti-deviated borehole instrument up and down, its principle is if well tilts, and eccentric tube is under the self gravitation effect; Its steadily of centre of gravity is at the low edge direction of well, and the fan-shaped mouth of rotary valve is at the high edge direction of well in the control, and last rotary valve is because of lower spindle bar place spring pretension; Make that rotary valve is close to up and down, following rotary valve rotates with drill string, when the rotary valve runner is communicated with last rotary valve runner instantly; Utilize pressure reduction to make piston promote the thrust palm backup well flash borehole wall, the reaction force of the borehole wall is pushed drill bit to well low limit, when runner is closed between rotary valve and the last rotary valve instantly; There is not liquid to flow to piston rod, so the thrust palm backup borehole wall no longer, the thrust palm receives borehole wall thrust to allow piston to regain; That is to say the direction except that the low limit of well, not backup of the thrust palm borehole wall, said process moves in circles; This instrument deviational survey just constantly in the process of drilling well like this, constantly well straightening, hole deviation control is within the specific limits the most at last.
Adopt when suspended automatic anti-deviated borehole instrument carries out wellbore construction up and down, utilize top connection 1 to be connected to upper drilling string, utilizations in suspension 3 with hang 8 down off-centre tins 5 be suspended in the body 2; Because bearing is equipped with at upper spindle 4, lower spindle 6 two ends, during body 2 rotations, eccentric tube 5 does not rotate with body 2; When the angle of inclination of instrument surpasses when allowing the hole deviation angle, the bearing effect down rotation of eccentric tube 5 in the gravity of self and suspension up and down, owing to off-centre 5 center of gravity in a side; So after run-off the straight; The center of gravity direction is bound on the low limit of tool tilt, because self gravitation overcomes external friction factor, makes that off-centre tube 5 is stable on low limit; Body 2 normally rotates; Last rotary valve 9 is because the effect of eccentric tube 5 is stabilized in low limit, and the fan-shaped opening of the above rotary valve 9 of institute points to the flash at angle of slope all the time, and the hole deviation flash is definite at this moment; Following rotary valve 10 is fixing by piston rod 12, and in the time of body 2 rotations, following rotary valve 10 also is rotated synchronously; Can produce a friction pair between the rotary valve this moment up and down; During the fan-shaped opening of three last rotary valves 9 of the every process in hole of following rotary valve 10 upper surfaces up and down perforate overlap, the drilling fluid in the drilling tool of top flows to the bottom drill bit through suspension up and down, eccentric tube 5 with the gap of 2 of bodies always, therefore up and down during the coincidence of rotary valve opening; Having the part drilling fluid flows to; Relief hole by piston 13 places is discharged to outside the annular space, and stretching out through the drill string inside and outside differential pressure of this process piston 13 drives, and piston 13 stretches out and raises the end hole wall; The reaction force of the borehole wall is then given and is bored first opposition, constantly reaches the effect of well straightening through the active force that continues.Drill string continues rotation, and when the rotary valve perforate did not overlap up and down, passage was closed, and does not have liquid to get in the piston rod 12, so piston 13 does not just have backup power being included except that the hole deviation flash with exterior domain except that flash.
Claims (2)
1. suspended automatic anti-deviated borehole instrument up and down; Comprise top connection (1), body (2), body (2) center is a through hole, the top connection (1) that is threaded of body (2) top; It is characterized in that: described body (2) upper end and lower end inwall have undergauge section from top to bottom; There are suspension of going up (3) and suspension (8) down in the reducing place of body (2) upper end and lower end seat respectively, and the upper ends of last suspension (3) has adjusting locating ring (15), regulates locating ring (15) other end and leans against top connection (1) bottom; Last suspension (3) is installed with upper spindle (4) in the lower central hole; Upper spindle is equipped with bearing on (4), and following suspension (8) is installed with lower spindle (6) in the central upper portion hole, and bearing (7) is housed on the lower spindle (6); Upper spindle (4) is fixedly connected on eccentric tube (5) upper end, and lower spindle (6) is fixedly connected on eccentric tube (5) lower end; Lower spindle (6) lower end is fixed in the centre bore of rotary valve (9), is equipped with spring between lower spindle (6) lower end and last rotary valve (9); The fan-shaped opening (16) of last rotary valve (9) and eccentric tube (5) center of gravity symmetry, following rotary valve (10) upper face is processed with pod apertures to inside, and following rotary valve (10) external surface has three through holes; Three through holes circumferentially are uniformly distributed with; Upwards have a large opening in the footpath of through hole, body (2) bottom is processed with three macropores, and piston rod (12) is installed in three macropores; Piston rod (12) center is drilled with piston rod flow-guiding mouth (11); The big footpath and the piston (13) of piston rod (12) are installed in body (2) macropore, and the path of piston rod (12) is installed in down in the large opening of rotary valve (10), and following rotary valve (10) is by three piston rods (12) axial location; The respectively corresponding piston rod (12) of each through hole of following rotary valve (10) has relief hole (17) on the piston (13); Flow-guiding mouth on the piston rod (12) and the overcurrent duct of following rotary valve (10) inside, relief hole (17) UNICOM on the piston (13); Three macropores of body (2) bottom are corresponding with three perforates on the following rotary valve (10), and piston (13) outside is equipped with thrust palm (14), and the axial side of thrust palm (14) is connected on the body (2) through hinge.
2. suspended automatic anti-deviated borehole instrument up and down according to claim 1, it is characterized in that: described thrust palm (14) upper and lower side is equipped with limiting plate (18), and limiting plate (18) is fixed on the body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204326469U CN202280425U (en) | 2011-11-04 | 2011-11-04 | Upper and lower suspension type automatic anti-sloping drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204326469U CN202280425U (en) | 2011-11-04 | 2011-11-04 | Upper and lower suspension type automatic anti-sloping drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202280425U true CN202280425U (en) | 2012-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204326469U Expired - Fee Related CN202280425U (en) | 2011-11-04 | 2011-11-04 | Upper and lower suspension type automatic anti-sloping drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202280425U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452480A (en) * | 2013-08-13 | 2013-12-18 | 燕山大学 | Gravity pushing type vertical-drilling deviation control device |
| CN104563867A (en) * | 2013-10-27 | 2015-04-29 | 中国石油化工集团公司 | Gravity control type rotary steering tool |
| CN106368624A (en) * | 2016-10-10 | 2017-02-01 | 东北石油大学 | Angle fine-adjustment device for balancing drilling pressure |
| CN108005580A (en) * | 2017-12-29 | 2018-05-08 | 中国地质大学（北京） | A kind of static mechanical formula automatic vertical drilling tool of zero deflecting under perpendicular attitude |
| CN111426496A (en) * | 2020-04-05 | 2020-07-17 | 新疆正通石油天然气股份有限公司 | Buckling pipe column drilling simulation device in reducing well |
| CN112610158A (en) * | 2020-12-14 | 2021-04-06 | 中国石油大学(华东) | Intelligent vertical drilling system and drilling method |
-
2011
- 2011-11-04 CN CN2011204326469U patent/CN202280425U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452480A (en) * | 2013-08-13 | 2013-12-18 | 燕山大学 | Gravity pushing type vertical-drilling deviation control device |
| CN103452480B (en) * | 2013-08-13 | 2015-11-18 | 燕山大学 | Gravity pushing type vertical drilling slope-preventing device |
| CN104563867A (en) * | 2013-10-27 | 2015-04-29 | 中国石油化工集团公司 | Gravity control type rotary steering tool |
| CN106368624A (en) * | 2016-10-10 | 2017-02-01 | 东北石油大学 | Angle fine-adjustment device for balancing drilling pressure |
| CN106368624B (en) * | 2016-10-10 | 2018-12-07 | 东北石油大学 | A kind of balance bit pressure vernier angle device |
| CN108005580A (en) * | 2017-12-29 | 2018-05-08 | 中国地质大学（北京） | A kind of static mechanical formula automatic vertical drilling tool of zero deflecting under perpendicular attitude |
| CN108005580B (en) * | 2017-12-29 | 2023-10-20 | 中国地质大学（北京） | Static mechanical automatic vertical drilling tool with zero deflection under vertical attitude |
| CN111426496A (en) * | 2020-04-05 | 2020-07-17 | 新疆正通石油天然气股份有限公司 | Buckling pipe column drilling simulation device in reducing well |
| CN112610158A (en) * | 2020-12-14 | 2021-04-06 | 中国石油大学(华东) | Intelligent vertical drilling system and drilling method |
| CN112610158B (en) * | 2020-12-14 | 2022-09-13 | 中国石油大学(华东) | Intelligent vertical drilling system and drilling method |
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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: 20120620 Termination date: 20171104 |