CN103924920B - Drilling tool is with brill safety device - Google Patents
Drilling tool is with brill safety device Download PDFInfo
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- CN103924920B CN103924920B CN201410168343.9A CN201410168343A CN103924920B CN 103924920 B CN103924920 B CN 103924920B CN 201410168343 A CN201410168343 A CN 201410168343A CN 103924920 B CN103924920 B CN 103924920B
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Abstract
The invention provides a kind of drilling tool with brill safety device, comprise the elements such as housing body components, mandrel component, seal.Housing body components comprises upper shell, lower contact; Mandrel component comprises mandrel, pressure cap, spline body, piston body.Black box comprises stem seal part, piston body seal, lower contact outside seal, lower contact outside seal, lower contact inner seal liner; When drilling tool normally creeps into operation, rely on drilling tool with the locking structure boring safety device inside, Absorbable organic halogens creeps into, and can not automatically thread off.When there is lock of tool drilling in well, screw thread back-off (namely threading off) can be connected easily from its body, trip out female joint and above drilling tool or instrument, the situation avoided advanced instrument, instrument damage to the full extent or bury shaft bottom occurs, and reduces economic loss.
Description
Technical field
The invention belongs to subterranean resource drilling engineering equipment technical field, particularly relate to a kind of drilling tool with brill safety device.
Background technology
Along with country is to the increase day by day of energy demand, deep-well, ultradeep well, directional well, horizontal well etc., all kinds of Holes of Complicated Wells body structure is used more and more, also just face down hole problem simultaneously, accident is many, drilling period is long, costly, advanced drilling well, logging tool all depend on import, expensive.Wherein in the operation process of wellbore construction, down-hole equipment frequent accident is distinct issues, and bit freezing be almost creep into bad ground must accidents happened.And in wellbore construction operation process, bit freezing is that occurrence frequency is the highest, process spended time is the longest and one of the drilling failure that causes economic loss maximum.
Particularly in oil drilling directional well, horizontal well, because of bit freezing cause domestic and international advanced tools damage or bury shaft bottom situation carry out have generation, bring serious potential safety hazard and huge property loss to drilling well.
Summary of the invention
The invention provides a kind of drilling tool with brill safety device, object is in case of need can successfully back-off, and its upper and lower drilling tool is thrown off.Drilling tool provided by the invention as a kind of with drill tools, can be arranged on nearly bit location with brill safety device, when bit freezing occurring in well and needing to thread off, can connect screw thread easily open from its body, trips out female joint and above drilling tool or instrument; In addition, in normal drilling process, there is a locking system, can not automatically thread off.
The invention provides a kind of drilling tool with brill safety device, comprise housing body components, mandrel component, black box, wherein:
Described housing body components comprises the upper shell of tubular, pin and columniform lower contact, and described upper shell axially connects with the threaded one end of described lower contact; The end face of one end of described lower contact is also provided with dental inlay; The sidewall of described upper shell is provided with dowel hole; The inwall of described upper shell is also provided with internal spline;
Described mandrel component comprises mandrel body, spring, spring base cap, spline body, piston body, and described mandrel body external surface is socketed assembling successively and is provided with described spring, spring base cap, spline body and piston body to bottom from top; The top of described mandrel body is also provided with step, and described step is for blocking one end of described spring, and the other end of described spring is fixedly connected with spring base; The external surface of spline body is provided with external splines; External splines on described spline body and the internal spline splined of described upper shell; Described pin stretches into described dowel hole on described upper shell sidewall and described spring base inner position coordinates; Described and cap and described piston body and described mandrel body thread connection, and described and there is gap between cap and described spring base;
Described black box comprises stem seal part, piston body seal, lower contact outside seal, lower contact outside seal, lower contact inner seal liner;
The outer surface of cupular part of described mandrel body is provided with seal groove; The cavity that described stem seal part is formed for the seal groove and described housing body components inwall sealing the top of described mandrel body; The external surface of described piston body is provided with seal groove, the cavity that described piston body seal is formed for the inwall sealing seal groove on described piston body and described lower contact; The inwall of described lower contact is provided with seal groove, the cavity that described lower contact outside seal is formed for sealing seal groove in described lower contact and mandrel body external surface; Described lower contact inner seal liner is arranged between the externally threaded end of described lower contact and the female ends place of upper shell; Between described stem seal part to piston body seal, sealing forms oil pocket; Described lower contact outside seal and described lower contact inner seal liner seal and form counter balance pocket; The sidewall of described upper shell is also provided with the first balance pipe, and one end of described lower contact is provided with the second balance pipe; Upper shell and described mandrel component be driven into described lower contact be in predetermined relative location time, described first balance pipe is connected with described second balance pipe.
Preferably, the inwall of the bottom of described upper shell is provided with internal thread, and the outer wall on the top of described lower contact is provided with external screw thread.
Preferably, described drilling tool is arranged on nearly bit location with brill safety device;
The top of described upper shell is fixedly connected with instrument or drilling tool, and described lower contact is connected with helicoid hydraulic motor or drill bit.
Preferably, the externally threaded tooth number scope on the internal thread of the bottom of described upper shell and the top of described lower contact is 4-5.
Preferably, the middle position of the external surface of described spring base is provided with annular groove;
Described pin stretches into the described dowel hole on described upper shell sidewall and the annular groove inner position in described spring base coordinates.
Preferably, described spring is compression spring.
Compared with prior art, the advantage of the embodiment of the present invention is:
Drilling tool provided by the invention, with brill safety device, analyzes its structure known: it is primarily of housing body components (primarily of upper shell, pin and lower contact composition), mandrel component and black box three part-structure composition; Wherein, mandrel component is mandrel body, spring, spring base cap, spline body, piston body assembly can produce the assembly of relative displacement, i.e. mandrel assembly by opposite shell body assembly in housing body components; Mandrel body external surface is socketed assembling successively and is provided with spring, spring base cap, spline body and piston body to bottom from top; The top of mandrel body is also provided with step, and step is for blocking one end of spring, and the other end of spring is fixedly connected with spring base; The external surface of spline body is provided with external splines; The internal spline splined of the external splines on spline body and upper shell; Pin stretches into dowel hole on upper shell sidewall and spring base inner position coordinates; And cap and piston body and mandrel body thread connection, and and there is gap between cap and spring base; The top of upper shell is fixedly connected with drilling tool, and described lower contact is fixedly connected with the described pump housing; Structure like this see Fig. 1 signal is known, and the top of the upper shell be fixedly connected with drilling tool is when stressed, and spring will the effect of being under pressure be in compressive state, and such mandrel body will produce relative sliding in upper shell;
Black box comprises stem seal part, piston body seal, lower contact outside seal, lower contact outside seal, lower contact inner seal liner, and defines the structure such as oil pocket, counter balance pocket; Upper shell and mandrel component be driven into lower contact be in predetermined relative location time, the first balance pipe is connected with the second balance pipe.
Namely when carrying out normal drilling operability, mud enters helicoid hydraulic motor by drilling tool with the latus rectum boring safety device, bit port, ground is returned to again by annular space, mud fluid column is at helicoid hydraulic motor, bit port place produces Pressure Drop, cause drilling tool with brill safety device latus rectum pressure higher than annular pressure, and annular pressure is identical with counter balance pocket pressure, thus mandrel component (i.e. mandrel assembly) top pressure is large, bottom pressure is little, (now spring will the effect of being under pressure be in compressive state) forces mandrel component to move down, until the external splines of A place spline body 8 engages completely with the dental inlay of lower contact 2.Because the external splines of spline body 8 engages with the internal spline of upper shell 1 simultaneously, so upper shell 1 and the circumferential locking of lower contact 2, can not relatively rotate, namely no matter drilling tool is now in pressurized, tension state with brill safety device, all can not back-off success, they, now just as an entirety, can bear the positive reaction torque of normally creeping into.
When running into lock of tool drilling; at this moment the pump housing is in termination of pumping state (i.e. stopped status); at this moment it is very little that lower contact is subject to the moment of torsion that the pump housing gives; this drilling tool (recovers deformation with the mandrel component (i.e. mandrel assembly) boring safety device in the elastic force effect of spring 4; break away from compressive state); be in upper dead center position, now spring base 5 lower surface with and the upper surface of cap 7 fit, the external splines of drive A place spline body 8 and the dental inlay of lower contact 2 are thrown off.At this moment drilling tool just can complete automatic unlocking (disengagement dental inlay) operation with brill safety device, at this moment upper shell 1 and lower contact 2 is in without lockup state, in addition because the external screw thread on the internal thread of the bottom of upper shell and the top of lower contact adopts wide sawtooth tooth form and concave-convex to strain end face design, after therefore only needing the after-applied 10-20KN pressure of termination of pumping, be easy to back-off; And then complete bit freezing trip operation, therefore, drilling tool provided by the invention can help drill bit to complete dropout smoothly with brill safety device, farthest ensures that the safety of the above instrument of stuck point, instrument (comprising drilling tool etc.) is taken out, reduces causality loss.
Accompanying drawing explanation
The drilling tool that Fig. 1 provides for the embodiment of the present invention is with the front view boring safety device;
The drilling tool that Fig. 2 provides for the embodiment of the present invention strains face schematic diagram with the screw thread boring safety device;
The drilling tool that Fig. 3 provides for the embodiment of the present invention is with the main TV structure schematic diagram of lower contact end face dental inlay boring safety device;
The drilling tool that Fig. 3 a provides for the embodiment of the present invention in Fig. 3 is with the lower contact end face dental inlay side-looking structural representation boring safety device;
The drilling tool that Fig. 4 provides for the embodiment of the present invention is with the front view boring safety device mandrel component;
The drilling tool that Fig. 5 provides for the embodiment of the present invention is with the spline body front view boring safety device;
The drilling tool that Fig. 5 a provides for the embodiment of the present invention in Fig. 5 is with the spline body-side view boring safety device;
The drilling tool that Fig. 6 provides for the embodiment of the present invention in Fig. 5 is with the three-dimensional view of spline body boring safety device;
The drilling tool that Fig. 6 a provides for the embodiment of the present invention is with the partial structurtes schematic diagram with female spline portion of upper shell boring safety device;
Wherein, housing body components: 1-upper shell, 2-lower contact, 6-pin;
Mandrel component: 3-mandrel body, 4-spring, 5-spring base, 7-cap, 8-spline body, 9-piston body;
Black box: 12-stem seal part, 13-piston body seal, 11-lower contact outside seal, 14-lower contact inner seal liner.
Detailed description of the invention
Also by reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.
First, before describing detailed description of the invention, in embodiment provided by the invention, regulation instrument box end is upper end, and pin end is lower end.
As shown in Figure 1, the drilling tool provided in the present embodiment, with brill safety device, mainly comprises housing body components, mandrel component and black box three part-structures;
Its concrete structure comprises upper shell 1, lower contact 2, mandrel body 3, spring 4, spring base 5, pin 6; And cap 7, spline body 8, piston body 9; Lower contact outside seal 11, stem seal part 12, piston body seal 13, lower contact inner seal liner 14.
About housing body components: housing body components comprises upper shell, pin, lower contact, lower house is axially connected by wide buttless thread with lower house; Pin is fixed on upper shell sidewall.Upper shell medium design has internal spline; The wide buttless thread end face of lower contact, is designed with dental inlay (as shown in Fig. 3 and Fig. 3 a).
It should be noted that, buttless thread (such as wide buttless thread) can realize being fastenedly connected, single load bearing and gearing.
On upper shell 1 sidewall, circumference is provided with 3 pinholes, for fixator pins 6, endoporus is provided with internal spline, and the internal spline on upper shell 1 can engage (i.e. splined) with the external splines of the spline body 8 on mandrel component, the bottom of upper shell 1 is wide sawtooth internal thread, can screw with the wide sawtooth external screw thread of lower contact 2, and strain screw thread by distinctive concavo-convex end face, as Fig. 2 (from left to right for tension double wedge coincidence status is to the changes in contrast schematic diagram straining double wedge and be tightened up state), the design of screw thread herein, make it after applying 10-20KN pressure, be easy to back-off, this Design of Screw Thread five button can bear the combined stresses of various operation in well, in deep-well and bending well during back-off, only need 2 ~ 3 circles, and 2 enclose in straight well and shallow well, in the speed of down-hole back-off or make-up again than drilling rod or fast 4 ~ 8 times of oil connection, and looking for of screw thread is neutral good.
See Fig. 5 and Fig. 5 a, it should be noted that, splined is made up of (such as rectangular spline or involute spline) internal spline and external splines.Spline on inner periphery is internal spline, and the spline on outer cylinder surface is external splines.Compare with Flat dey joint, splined has features in intensity, technique and use: the number of teeth is more, and total contact area is comparatively large, thus can bear larger load; The centering of parts on shaft and axle is good, this at a high speed and precision machinery very important; Guidance quality is good, and this is very important to dynamic connection; Applicable situation: centering precision requirement is high, transmitting torque is large or the connection of frequent slippage.Therefore splined is stressed comparatively even, more adapt to drilling tool with bores the such stress load of safety device comparatively greatly, by the larger constructional device of moment of torsion;
About mandrel component: (mandrel component is arranged in housing body components, is fixed on housing body components inwall by pin.) as shown in Figure 4, outside mandrel body 3, be equipped with described spring 4, spring base 5 cap 7, spline body 8, piston body 9 from top to bottom successively.Spline body 8 is designed with external splines (see also Fig. 5), can engage with the internal spline of upper shell 1, also can engage with the dental inlay of lower contact 2, as shown in Figure 1 simultaneously.
About black box: mandrel body 3 top (the large end of the mandrel body namely in Fig. 1) cylindrical is provided with seal groove, mounting core shaft seal 12, with upper shell 1 inner hole; Piston body 9 cylindrical is provided with seal groove, installs piston body seal 13, with lower contact 2 dental inlay end inner hole; The minimum endoporus of lower contact 2 is provided with seal groove, installs lower contact inner seal liner 14, coordinates with mandrel body 3 small end cylindrical.Front two groups of sealings form oil pocket, and rear two groups of sealings form counter balance pocket, are balanced by balance pipe B and annular pressure.
By spring action, mandrel body cap, spline body, piston physical efficiency move axially in housing unit outside.When mandrel body is in upper end position, the external splines of spline body engages with the internal spline of upper shell; When mandrel body is descending, the external splines of spline body engages with the internal spline of upper shell, the dental inlay of lower contact (namely realizing locking effect) simultaneously.Drillng operation can be carried out after dental inlay engagement, the external splines engaging structure of the external splines engaging structure of such dental inlay and spline body and the internal spline of upper shell and spline body can play the effect of certain bearing load, and its guidance quality, centering (namely looking for neutrality) are better, stress is concentrated less.
Introduce above-mentioned drilling tool below with the operating principle of boring safety device:
In normal drilling process, mud enters helicoid hydraulic motor, bit port by drilling tool with the latus rectum boring safety device, ground is returned to again by annular space, mud fluid column produces Pressure Drop at helicoid hydraulic motor, bit port place, cause drilling tool with brill safety device latus rectum pressure higher than annular pressure, and annular pressure is identical with counter balance pocket pressure, thus on mandrel component, large, the lower end pressure of end pressure is little, mandrel is forced to move down, until the external splines of A place spline body 8 engages completely with the dental inlay of lower contact 2.Because the external splines of spline body 8 engages with the internal spline of upper shell 1 simultaneously, so upper shell 1 and the circumferential locking of lower contact 2, can not relatively rotate, namely no matter drilling tool is now in pressurized, tension state with brill safety device, all can not back-off success, they, now just as an entirety, can bear the positive reaction torque of normally creeping into.
The termination of pumping state such as to make a trip, this drilling tool, with boring the mandrel component of safety device in the elastic force effect of spring 4, is in upper dead center position, now spring base 5 lower surface with and the upper surface of cap 7 fit, the external splines of A place spline body 8 and the dental inlay of lower contact 2 are thrown off.Therefore upper shell 1 and lower contact 2 without locking, be easy to back-off after applying 10-20KN pressure.
Further, this drilling tool is arranged between logger and helicoid hydraulic motor, drill bit with brill safety device, when after drill bit bit freezing, the after-applied 10-20KN pressure of termination of pumping is only needed just to be easy to back-off, namely this drilling tool can be tripped out with the instrument and the drill string that bore more than safety device, farthest ensure the safety of the above instrument of stuck point, instrument, reduce causality loss.
It should be noted that, the drilling tool that the embodiment of the present invention provides can be used in the operation of Treating Jammed Bit Accident and wellbore construction with brill safety device, such as: when drilling tool performs drillng operation in drilling well, bit freezing is there is during a certain degree of depth in well, at this time except the needs understanding stuck point degree of depth (utilizing special sticking point instrument) with by Treating Jammed Bit Accident such as bit freezing tool length, of paramount importance is exactly timely back-off, drilling tool with brill safety device its when normally creeping into, working stability, can not the phenomenons such as back-off be there is, can thread off smoothly after running into lock of tool drilling.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. drilling tool is with a brill safety device, it is characterized in that, comprises housing body components, mandrel component, black box, wherein:
Described housing body components comprises the upper shell of tubular, pin and columniform lower contact, and described upper shell axially connects with the threaded one end of described lower contact; The end face of one end of described lower contact is also provided with dental inlay; The sidewall of described upper shell is provided with dowel hole; The inwall of described upper shell is also provided with internal spline;
Described mandrel component comprises mandrel body, spring, spring base cap, spline body, piston body, and described mandrel body external surface is socketed assembling successively and is provided with described spring, spring base cap, spline body and piston body to bottom from top; The top of described mandrel body is also provided with step, and described step is for blocking one end of described spring, and the other end of described spring is fixedly connected with spring base; The external surface of spline body is provided with external splines; External splines on described spline body and the internal spline splined of described upper shell; Described pin stretches into described dowel hole on the sidewall of described upper shell and described spring base inner position coordinates; Described and cap and described piston body and described mandrel body thread connection, and described and there is gap between cap and described spring base;
Described black box comprises stem seal part, piston body seal, lower contact outside seal, lower contact inner seal liner;
The outer surface of cupular part of described mandrel body is provided with seal groove; The cavity that described stem seal part is formed for the seal groove and described housing body components inwall sealing the top of described mandrel body; The external surface of described piston body is provided with seal groove, the cavity that described piston body seal is formed for the inwall sealing seal groove on described piston body and described lower contact; The inwall of described lower contact is provided with seal groove, the cavity that described lower contact outside seal is formed for sealing seal groove in described lower contact and mandrel body external surface; Described lower contact inner seal liner is arranged between the externally threaded end of described lower contact and the female ends place of upper shell; Between described stem seal part to piston body seal, sealing forms oil pocket; Described lower contact outside seal and described lower contact inner seal liner seal and form counter balance pocket; The sidewall of described upper shell is also provided with the first balance pipe, and one end of described lower contact is provided with the second balance pipe; Upper shell and described mandrel component be driven into described lower contact be in predetermined relative location time, described first balance pipe is connected with described second balance pipe.
2. drilling tool as claimed in claim 1 is with brill safety device, it is characterized in that,
The inwall of the bottom of described upper shell is provided with internal thread, and the outer wall on the top of described lower contact is provided with external screw thread.
3. drilling tool as claimed in claim 2 is with brill safety device, it is characterized in that,
Described drilling tool is arranged on nearly bit location with brill safety device;
The top of described upper shell is fixedly connected with drilling tool, and described lower contact is fixedly connected with helicoid hydraulic motor or drill bit.
4. drilling tool as claimed in claim 2 is with brill safety device, it is characterized in that,
The externally threaded tooth number scope on the internal thread of the bottom of described upper shell and the top of described lower contact is 4-5.
5. drilling tool as claimed in claim 1 is with brill safety device, it is characterized in that,
The middle position of the external surface of described spring base is provided with annular groove;
Described pin stretches into the described dowel hole on described upper shell sidewall and the annular groove inner position in described spring base coordinates.
6. drilling tool as claimed in claim 1 is with brill safety device, it is characterized in that,
Described spring is compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410168343.9A CN103924920B (en) | 2014-04-24 | 2014-04-24 | Drilling tool is with brill safety device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410168343.9A CN103924920B (en) | 2014-04-24 | 2014-04-24 | Drilling tool is with brill safety device |
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| CN103924920A CN103924920A (en) | 2014-07-16 |
| CN103924920B true CN103924920B (en) | 2016-03-16 |
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| CN201410168343.9A Active CN103924920B (en) | 2014-04-24 | 2014-04-24 | Drilling tool is with brill safety device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014282B (en) * | 2016-06-21 | 2018-06-12 | 王永志 | A kind of horizontal well female connector limit body |
| CN106703683A (en) * | 2016-12-10 | 2017-05-24 | 北京春仑石油技术开发有限公司 | Turbine drilling tool motor with emergency stop mechanisms |
| CN108868743A (en) * | 2018-06-19 | 2018-11-23 | 中国海洋石油集团有限公司 | A kind of resistivity tool |
| CN108868605B (en) * | 2018-07-05 | 2019-12-31 | 中煤科工集团西安研究院有限公司 | Power propulsion system and method for underground coal mine near-horizontal ultra-deep hole directional drilling drill column |
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| DE528255C (en) * | 1928-12-27 | 1931-06-26 | Doheny Stone Drill Co | Safety connection for pipe rods in deep boreholes with detachable locking device |
| US5018581A (en) * | 1990-06-11 | 1991-05-28 | Hall L D | Sand release apparatus and method |
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| CN203822151U (en) * | 2014-04-24 | 2014-09-10 | 王岳 | Safety device for drilling of drilling tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7650946B2 (en) * | 2006-10-31 | 2010-01-26 | Venturi Oil Tools, Inc. | Disconnect apparatus and method |
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|---|---|---|---|---|
| DE528255C (en) * | 1928-12-27 | 1931-06-26 | Doheny Stone Drill Co | Safety connection for pipe rods in deep boreholes with detachable locking device |
| US5018581A (en) * | 1990-06-11 | 1991-05-28 | Hall L D | Sand release apparatus and method |
| WO1998032946A1 (en) * | 1997-01-27 | 1998-07-30 | Bjoernstad Thor | A release equipment for a drill string |
| WO2009152042A2 (en) * | 2008-06-09 | 2009-12-17 | National Oilwell Varco, L.P. | Mechanically engaged and releasable connection system |
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Effective date of registration: 20181212 Address after: 618300 No. 13, West Zhuhai Road, Guanghan City, Deyang City, Sichuan Province Patentee after: Sichuan Weichuang Petroleum Equipment Manufacturing Co.,Ltd. Address before: 257097 Room 401, Unit 2, Building No. 20, 703 North Second Road, Dongying District, Dongying City, Shandong Province Patentee before: Wang Yue |
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Effective date of registration: 20230725 Address after: 618000 No. 13, Section 1, Zhuhai Road West, Guanghan City, Deyang City, Sichuan Province Patentee after: Sichuan Weichuang Petroleum Equipment Manufacturing Co.,Ltd. Patentee after: SHANDONG WEICHUANG PETROLEUM TECHNOLOGY Co.,Ltd. Address before: 618300 No. 13, West Zhuhai Road, Guanghan City, Deyang City, Sichuan Province Patentee before: Sichuan Weichuang Petroleum Equipment Manufacturing Co.,Ltd. |
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