CN104533331B - Method and device for achieving shock through circulating drilling fluid - Google Patents
Method and device for achieving shock through circulating drilling fluid Download PDFInfo
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- CN104533331B CN104533331B CN201410832899.3A CN201410832899A CN104533331B CN 104533331 B CN104533331 B CN 104533331B CN 201410832899 A CN201410832899 A CN 201410832899A CN 104533331 B CN104533331 B CN 104533331B
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- piston
- jarring
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- spring
- shock
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- 239000012530 fluid Substances 0.000 title claims abstract description 34
- 238000005553 drilling Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000035939 shock Effects 0.000 title claims abstract description 13
- 238000005381 potential energy Methods 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 9
- 238000004146 energy storage Methods 0.000 claims abstract description 7
- 238000007906 compression Methods 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000002776 aggregation Effects 0.000 claims description 6
- 238000004220 aggregation Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 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
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/107—Fishing for or freeing objects in boreholes or wells using impact means for releasing stuck parts, e.g. jars
- E21B31/113—Fishing for or freeing objects in boreholes or wells using impact means for releasing stuck parts, e.g. jars hydraulically-operated
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Marine Sciences & Fisheries (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a method and device for achieving shock through circulating drilling fluid. According to the method, a shock rod is pushed to overcome energy storage spring counter-acting force to descend through pressure, generated in a piston upper cavity, of the drilling liquid, and the potential energy is accumulated by an energy storage spring in the compression process; then in the descending process of the shock rod, the pressure of a piston lower cavity gradually rises; then a pressure relief channel in the piston lower cavity is opened through a valve rod at the bottom of a piston, the potential energy accumulated by the energy storage spring is released instantly and converted into upward shock kinetic energy of the shock rod, one-time upward shock process is finished, and the process is repeated to achieve continuous one-way shock. According to the method and device for achieving shock, shock is generated through the circulating drilling fluid, and quick and continuous shock can be provided for a clamping point. The load of a drilling pillar can be effectively lowered, and the service life of pipe pillars, such as a drill rod and a drill collar can be prolonged; meanwhile, ground bearing equipment can be protected.
Description
Technical field
The present invention relates to a kind of dependence circulating fluid realizes the method and device of jarring, belong to downhole tool technology neck
Domain.
Background technology
Drilling well lock of tool drilling is most common, most incident down-hole engineering accident in wellbore construction.The drilling tool of a few km length
When working in the well, often because of showing that well wall dropping block, the reason such as collapse occur that drilling tool can not above carry, can not transfer or can not rotate
As the referred to as lock of tool drilling of drilling well.Lock of tool drilling handling implement is bumper jar, be force stuck point drill string to move up and down repeatedly with
Reach unfreezing purpose.The bumper jar of prior art has two big class of mechanical type and fluid pressure type, is the different classifications according to relieving mechanism,
It is inherently to be discharged after above carrying or pushing drill string to force stuck point and make with upper drill elastic elongation or compression suddenly, utilizes
The elastic potential energy impact stuck point of drilling stem elongation or compression savings.A jarring operation is completed once per put-on and delegated.Unfreezing operation
All it is constantly to repeat put-on and delegated drill string, until stuck point is released from.But drill string is in dependence well in high angle hole or horizontal well
Wall-like state, the most of friction by drill string with the borehole wall of elastic potential energy of jarring operation release drill string savings are consumed, and reach stuck point
Impulsive force deep fades, unfreezing success rate substantially reduces.If increasing jarring force and increasing jarring number of times to drilling tool and drilling well
Equipment has infringement, increases the risk of second accident.
The content of the invention
It is an object of the present invention to provide a kind of dependence circulating fluid realizes the method and device of jarring, to solve
High angle hole or the technical problem of the existing bumper jar failure of net horizontal section, so that overcome the deficiencies in the prior art.
The technical scheme is that what is be achieved in that：
A kind of dependence circulating fluid of the present invention realizes that the method for unidirectional jarring is, the method is being lived by drilling fluid
The pressure that chamber produces beyond the Great Wall promotes jar stem to overcome energy-stored spring counteracting force descending, and energy-stored spring assembles gesture in compression process
Energy；During jar stem is descending, under piston, cavity pressure is gradually increasing；Then piston cavity of resorption is opened by the valve rod of piston base
Pressure release passage, make energy-stored spring aggregation potential energy abrupt release be converted into jar stem jarring kinetic energy upwards, complete once to go up
Shake process, repeats said process and realizes continuously unidirectional jarring.
In preceding method, the drilling fluid promotes piston to overcome the anti-work of hairspring first in the pressure that piston upper chamber is produced
It is firmly descending, the valve opening on valve seat is closed by the valve rod of piston base piston cavity of resorption is formed in piston；Piston after
It is continuous it is descending during, overcome bulky spring counteracting force and promote jar stem descending, during jar stem is descending, overcome energy-stored spring
Counteracting force compressed energy-storage spring complete the aggregation of potential energy.
In preceding method, after the valve opening on valve seat is closed by the valve rod, drilling fluid is entered by the metering hole on piston
Piston cavity of resorption, makes the pressure of piston cavity of resorption move closer to the pressure of piston upper chamber, and piston is in bulky spring and the active force of hairspring
It is up relative to jar stem, make valve rod depart from the valve opening on valve seat, open piston cavity of resorption pressure release passage.
In preceding method, the jar stem is cylindrical to be provided with jarring boss, by jarring boss and jarring pad on trocar sheath
Clash into, the potential energy that energy-stored spring discharges is transferred to into trocar sheath.
A kind of dependence circulating fluid of the present invention constituted according to said method realizes that the device of unidirectional jarring is, the dress
Put including trocar sheath；Piston is provided with trocar sheath, is provided with jar stem below piston；Piston base is provided with valve rod, jar stem upper end
It is provided with valve seat；Piston jacket has bulky spring and hairspring；Energy-stored spring is cased with outside jar stem.
In aforementioned means, the piston is shaped as tubular structure, the cylindrical ring being provided with for support spring in the top of pipe
Shape boss, the smaller diameter end of the bottom cylindrical of pipe is valve rod, and the endoporus bottom of pipe is provided with and the cylindrical metering hole for communicating, outside pipe
Circle stage casing is provided with the spring fairlead for isolating bulky spring and hairspring.
In aforementioned means, the jar stem lower end is connected with heart axle is extended, and the energy-stored spring is cylindrical positioned at heart axle is extended,
Energy-stored spring two ends are provided with spring base；Spring base bottom below energy-stored spring is provided with adjusting set.
In aforementioned means, top connection that the trocar sheath includes from top to bottom being sequentially connected, drive sleeve, power transmission shaft, centre
Sleeve and lower contact；Piston is located in power transmission shaft endoporus, and jar stem and prolongation heart axle position are set in intermediate sleeve in intermediate sleeve
There is jarring pad, the jar stem below jarring pad is provided with jarring boss.
In aforementioned means, the drive sleeve in the trocar sheath is connected with splined driveshaft, and the remainder in trocar sheath is equal
For threaded connection.
In aforementioned means, spline body and throttling body in the top connection, is provided with.
As a result of above-mentioned technical proposal, compared with prior art, the present invention completes jarring operation and does not lean on the present invention
Overload lifting transfers to realize, can be effectively reduced the load of drill string, such as drilling rod, drill collar and other drilling tools in increase tubing string
Service life；Meanwhile, protective effect is also functioned to the load bearing equipment on ground.The present invention does not need special equipment to operate,
Jarring is produced by circulating fluid, the shortcoming of conventional bumper jar single jarring is overcome, can it is quick to stuck point one,
Continuous jarring.The discharge capacity for adjusting drilling fluid can change the frequency of jarring.Because employing high temperature resistant, anti abrasive sealing member
Instrument can be working within 220 DEG C of bottom hole temperature (BHT).
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the partial enlarged drawing of piston portion in Fig. 1.
Labelling in accompanying drawing for：1- top connections, 2- spline bodies, 3- throttling bodies, 4- drive sleeve, 5- bulky springs, 6- springs are led
Extend to set, 7- hairsprings, 8- power transmission shafts, 9- pistons, 10- valve seats, 11- jarring pads, 12- intermediate sleeves, 13- jar stems, 14-
Heart axle, 15- spring bases, 16- energy-stored springs, 17- adjusting sets, 18- lower contacts, 19- metering holes, 20- piston upper chambers, 21- pistons
Cavity of resorption, 22- valve rods.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples, but not as to any of the present invention
Limit.
The method that a kind of dependence circulating fluid of the present invention realizes unidirectional jarring, as illustrated in fig. 1 and 2, the method is logical
Crossing drilling fluid promotes jar stem 13 to overcome 16 counteracting force of energy-stored spring descending in the pressure that piston upper chamber 20 is produced, energy-stored spring
16 assemble potential energy in compression process；During jar stem 13 is descending, 21 pressure of piston cavity of resorption is gradually increasing；Then by living
The valve rod 22 of plug bottom opens the pressure release passage of piston cavity of resorption 21, makes the potential energy abrupt release of the aggregation of energy-stored spring 16 be converted into shake
The jarring kinetic energy upwards of bar 13 is hit, completes once to go up shake process, repeated said process and realize continuously unidirectional jarring.Drilling fluid is being lived
The pressure that chamber 20 produces beyond the Great Wall promotes piston 9 to overcome the counteracting force of hairspring 7 descending first, by the valve rod of 9 bottom of piston
Valve opening closing on valve seat 20 is formed piston cavity of resorption 21 in 9 lower end of piston by 22；During piston 9 is continued traveling downwardly, overcome thick
5 counteracting force of spring simultaneously promotes jar stem 13 descending, overcomes the retroaction of energy-stored spring 16 to force during jar stem 13 is descending
Contracting energy-stored spring 16 completes the aggregation of potential energy.After valve opening on valve seat 20 is closed by valve rod 22, drilling fluid is by the limit on piston 9
Discharge orifice 19 enters piston cavity of resorption 21, makes the pressure of piston cavity of resorption 21 move closer to the pressure of piston upper chamber 20, and piston 9 is in bulky spring
5 and hairspring 7 active force it is up relative to jar stem 13, make valve rod 22 depart from valve seat 10 on valve opening, open piston cavity of resorption
21 pressure release passages.Jar stem 13 is cylindrical to be provided with jarring boss, by the shock of jarring pad on jarring boss and trocar sheath, by energy storage
The potential energy of the release of spring 16 is transferred to trocar sheath.
A kind of dependence circulating fluid of the present invention constituted according to said method realizes the device of unidirectional jarring, such as Fig. 1
With shown in 2, the device includes trocar sheath；Piston 9 is provided with trocar sheath, is provided with jar stem 13 below piston 9；9 bottom of piston sets
There is valve rod 22,13 upper end of jar stem is provided with valve seat 10；Bulky spring 5 and hairspring 7 are cased with outside piston 9；Storage is cased with outside jar stem 13
Can spring 16.Piston 9 is shaped as tubular structure, the cylindrical annular boss being provided with for support spring in the top of pipe, the bottom of pipe
The cylindrical smaller diameter end in portion is valve rod 22, and the endoporus bottom of pipe is provided with and the cylindrical metering hole 19 for communicating, and the cylindrical stage casing of pipe sets
There is the spring fairlead 6 for isolating bulky spring 5 and hairspring 7.13 lower end of jar stem is connected with heart axle 14 is extended, the energy storage
Heart axle 14 is cylindrical positioned at extending for spring 16, and 16 two ends of energy-stored spring are provided with spring base 15；Spring base 15 below energy-stored spring 16
Bottom is provided with adjusting set 17.Top connection 1 that trocar sheath includes from top to bottom being sequentially connected, drive sleeve 4, power transmission shaft 8, intermediate sleeve
12 and lower contact 18；Piston 9 is located in 8 endoporus of power transmission shaft, and jar stem 13 and prolongation heart axle 14 are located in intermediate sleeve 12, middle
Jarring pad 11 is provided with sleeve 12, the jar stem 13 below jarring pad 11 is provided with jarring boss.Drive sleeve 4 in trocar sheath with
8 spline connection of power transmission shaft, the remainder in trocar sheath are threaded connection.Spline body 2 and throttling body 3 is provided with top connection 1.
Embodiment
When being embodied as, 1 one end of top connection is machined with rectangular flower keyway, and spline body 2 loads top connection 1 by spline pair,
The throttling body 3 of lower end directly withstands the step of 2 endoporus of spline body, and drive sleeve 4 is threadedly coupled with throttling body top connection, drive sleeve 4
Coordinated by spline pair between power transmission shaft 8, and power transmission shaft 8 is threadedly coupled with spline body 2, filled in the upper end hole of power transmission shaft 8
There are bulky spring 5, hairspring 7 and spring fairlead 6 and piston 9.Valve seat 10 is installed in the upper end of power transmission shaft 8, lower end is provided with
Spring base 15, energy-stored spring 16 and adjusting set 17, power transmission shaft 8, middle cylinder 12, lower contact 18 are connected by screw thread.
It is as follows to the course of work and principle further instruction of the present invention below：
The use very simple of the present invention, if after there is drilling tool chance card accident, being connected to the front end of drilling tool by instrument, to the greatest extent may be used
The position of stuck point can be close to, continuous jarring operation can be implemented by circulating fluid（Jarring upwards）Until drill pipe release.
Operation principle：Drilling fluid is after top connection 1 is flowed into, through 9 second throttle of body 3 and piston that throttles from the top of instrument
Hairspring 7, bulky spring 5 is successively overcome to promote the descending valve rod 22 for forcing piston of piston 9 to enter the bore closure of valve seat 10 afterwards
Passage.Meanwhile, jar stem 13 overcomes energy-stored spring 16 descending.Pressure in piston cavity of resorption 21 gradually rises.Now, with piston
When the pressure of 9 upper and lower two chambers tends to equal, hairspring 7,5 length of bulky spring affranchise length condition, i.e., slow to return
Bullet, when the valve rod 22 of 9 front end of piston is disengaged with valve seat 10, the pressure instantaneous reduction of piston cavity of resorption 21, energy-stored spring 16 are promoted
Jar stem 13 accelerates strike jarring pad 11.At this moment, the pressure of the upper and lower chamber of piston 9 becomes uneven, continues to press on piston 9
Descending, 13 upper valve base 10 of jar stem of resilience is sealed with 9 upper valve rod 22 of piston again, thus, completing a jarring cycle operation.
Claims (10)
1. a kind of method that dependence circulating fluid realizes jarring, it is characterised in that the method be by drilling fluid on piston
Chamber（20）The pressure of generation promotes jar stem（13）Overcome energy-stored spring（16）Counteracting force is descending, energy-stored spring（16）In compression
During assemble potential energy；In jar stem（13）During descending, piston cavity of resorption（21）Pressure is gradually increasing；Then pass through piston bottom
The valve rod in portion（22）Open piston cavity of resorption（21）Pressure release passage, make energy-stored spring（16）The potential energy abrupt release of aggregation is converted into
Jar stem（13）Jarring kinetic energy upwards, completes once to go up shake process, repeats said process and realizes continuously unidirectional jarring.
2. the method for realizing jarring by circulating fluid according to claim 1, it is characterised in that：The drilling fluid is being lived
Chamber beyond the Great Wall（20）The pressure of generation promotes piston（9）Hairspring is overcome first（7）Counteracting force it is descending, by piston（9）Bottom
The valve rod in portion（22）By valve seat（10）On valve opening close in piston（9）Lower end forms piston cavity of resorption（21）；In piston（9）Continue
During descending, bulky spring is overcome（5）Counteracting force simultaneously promotes jar stem（13）It is descending, jar stem（13）Overcome during descending
Energy-stored spring（16）Counteracting force compressed energy-storage spring（16）Complete the aggregation of potential energy.
3. the method for realizing jarring by circulating fluid according to claim 2, it is characterised in that：The valve rod（22）Will
Valve seat（10）On valve opening close after, drilling fluid pass through piston（9）On metering hole（19）Into piston cavity of resorption（21）, make piston
Cavity of resorption（21）Pressure move closer to piston upper chamber（20）Pressure, piston（9）In bulky spring（5）And hairspring（7）Effect
Power is relative to jar stem（13）It is up, make valve rod（22）Depart from valve seat（10）On valve opening, open piston cavity of resorption（21）Pressure release is led to
Road.
4. the method for realizing jarring by circulating fluid according to claim 2, it is characterised in that：The jar stem（13）
It is cylindrical to be provided with jarring boss, by the shock of jarring pad on jarring boss and trocar sheath, by energy-stored spring（16）The potential energy of release
It is transferred to trocar sheath.
5. a kind of dependence circulating fluid realizes the device of unidirectional jarring, including trocar sheath；It is characterized in that：Set in trocar sheath
There is piston（9）, in piston（9）Lower section is provided with jar stem（13）；Piston（9）Bottom is provided with valve rod（22）, jar stem（13）Upper end
It is provided with valve seat（10）；Piston（9）It is cased with outward bulky spring（5）And hairspring（7）；Jar stem（13）It is cased with outward energy-stored spring（16）.
6. the device of unidirectional jarring is realized by circulating fluid according to claim 5, it is characterised in that：The piston
（9）Be shaped as tubular structure, the cylindrical annular boss being provided with for support spring in the top of pipe, the bottom cylindrical of pipe it is little straight
Footpath end is valve rod（22）, the endoporus bottom of pipe is provided with and the cylindrical metering hole for communicating（19）, the cylindrical stage casing of pipe be provided with for every
From bulky spring（5）And hairspring（7）Spring fairlead（6）.
7. according to the device for realizing unidirectional jarring described in claim 6 by circulating fluid, it is characterised in that：The jar stem
（13）Lower end and prolongation heart axle（14）Connection, the energy-stored spring（16）Positioned at prolongation heart axle（14）It is cylindrical, energy-stored spring（16）
Two ends are provided with spring base（15）；Energy-stored spring（16）The spring base of lower section（15）Bottom is provided with adjusting set（17）.
8. the device of unidirectional jarring is realized by circulating fluid according to claim 7, it is characterised in that：The trocar sheath
Including the top connection being from top to bottom sequentially connected（1）, drive sleeve（4）, power transmission shaft（8）, intermediate sleeve（12）And lower contact（18）；
Piston（9）Positioned at power transmission shaft（8）In endoporus, jar stem（13）With prolongation heart axle（14）Positioned at intermediate sleeve（12）It is interior, intermediate sleeve
Cylinder（12）Jarring pad is provided with inside（11）, jarring pad（11）The jar stem of lower section（13）It is provided with jarring boss.
9. the device of unidirectional jarring is realized by circulating fluid according to claim 8, it is characterised in that：The trocar sheath
In drive sleeve（4）With power transmission shaft（8）Spline connection, the remainder in trocar sheath are threaded connection.
10. the device of unidirectional jarring is realized by circulating fluid according to claim 8, it is characterised in that：Connect on described
Head（1）Spline body is provided with inside（2）With throttling body（3）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410832899.3A CN104533331B (en) | 2014-12-29 | 2014-12-29 | Method and device for achieving shock through circulating drilling fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410832899.3A CN104533331B (en) | 2014-12-29 | 2014-12-29 | Method and device for achieving shock through circulating drilling fluid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104533331A CN104533331A (en) | 2015-04-22 |
| CN104533331B true CN104533331B (en) | 2017-03-22 |
Family
ID=52848932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410832899.3A Active CN104533331B (en) | 2014-12-29 | 2014-12-29 | Method and device for achieving shock through circulating drilling fluid |
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| Country | Link |
|---|---|
| CN (1) | CN104533331B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989310B (en) * | 2015-07-06 | 2023-09-01 | 中国石油化工股份有限公司 | Horizontal well jarring stuck releasing device and construction method thereof |
| CN105134067B (en) * | 2015-09-10 | 2017-03-01 | 西南石油大学 | A kind of drilling well continuous hydraulic is hammered into shape |
| CN105756597B (en) * | 2016-04-07 | 2018-08-10 | 中国地质大学（武汉） | A kind of bumper jar |
| CN107687328A (en) * | 2017-10-10 | 2018-02-13 | 贵州高峰石油机械股份有限公司 | A kind of releasing method and device using the continuous vibration of spring period stretch |
| CN108868680B (en) * | 2018-04-11 | 2020-11-06 | 中国石油天然气集团有限公司 | Continuous jar |
| CN112593884B (en) * | 2020-12-29 | 2024-04-30 | 贵州高峰石油机械股份有限公司 | Underground continuous downward jarring unclamping device and method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2302977C (en) * | 2000-03-28 | 2008-07-22 | Canadian Downhole Drill Systems Inc. | Hydraulic drilling jar |
| CN201535143U (en) * | 2009-08-31 | 2010-07-28 | 泸州川油钻采工具有限公司 | Full mechanical type drilling jar |
| CN201474642U (en) * | 2009-09-02 | 2010-05-19 | 贵州高峰石油机械股份有限公司 | Stable feeding drilling jar |
| CN201786303U (en) * | 2010-05-27 | 2011-04-06 | 贵州高峰石油机械股份有限公司 | Full hydraulic jar knocker during drilling |
| CN201943625U (en) * | 2011-01-30 | 2011-08-24 | 贵州高峰石油机械股份有限公司 | Two-way shock accelerator |
| CN204371181U (en) * | 2014-12-29 | 2015-06-03 | 贵州高峰石油机械股份有限公司 | Circulating fluid is relied on to realize the device of unidirectional jarring |
-
2014
- 2014-12-29 CN CN201410832899.3A patent/CN104533331B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104533331A (en) | 2015-04-22 |
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