CN107044265A - Mechanical drilling jar - Google Patents
Mechanical drilling jar Download PDFInfo
- Publication number
- CN107044265A CN107044265A CN201710129491.3A CN201710129491A CN107044265A CN 107044265 A CN107044265 A CN 107044265A CN 201710129491 A CN201710129491 A CN 201710129491A CN 107044265 A CN107044265 A CN 107044265A
- Authority
- CN
- China
- Prior art keywords
- outer barrel
- mandrel
- piston
- ring
- sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 25
- 239000012530 fluid Substances 0.000 claims abstract description 26
- 238000004146 energy storage Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims abstract description 6
- 230000008602 contraction Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004709 eyebrow Anatomy 0.000 description 1
- 210000000720 eyelash Anatomy 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000007787 solid Substances 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 kind of mechanical drilling jar, including mandrel and the outer barrel that is telescopically set on the outside of mandrel；It is provided with piston between mandrel and outer barrel, the piston isolates to be provided with first flow in a fluid chamber, and piston and be respectively used to fluid with second flow channel in the space between mandrel and outer barrel enters and flow out the fluid chamber；Slips and triggering sleeve are additionally provided with the housing, the triggering sleeve can be slided with the outer barrel relative to the mandrel；The slips can be radially expanded or shrink and the attachment of one of both mandrel, outer barrel；Outer barrel is additionally provided with the elastic energy storage part that mechanical energy is absorbed or discharged in mandrel sliding process relative with outer barrel.The mechanical drilling jar of the present invention has the reliability of mechanical drilling jar and the large-tonnage advantage of fluid pressure type bumper jar concurrently, and reliable, service life is long, can meet most of with the jarring demand for boring unfreezing.
Description
Technical field
The present invention relates to a kind of bumper jar, and in particular to a kind of Hydromechanical drilling jar.
Background technology
In drilling process, because BHA is longer, the geological condition of underground is complicated, and drilling tool occurs in drilling process
Bit freezing is inevitable, and the purpose of jarring releasing can be reached using bumper jar.The bumper jar more commonly used now is all single
One mechanical or fluid pressure type, the two is all in place of Shortcomings, for example：Mechanical drilling jar jarring tonnage is limited and can not be simultaneously
A variety of tonnage jarrings are realized, fluid pressure type bumper jar can reach large-tonnage jarring, and can be fitted using different jarring tonnages
Different stressing conditions are answered, but due to not having any locking device during upper carry, jarring by mistake are easily produced, so as to not reach
The purpose of jarring releasing.Therefore, current bumper jar can't fully meet use demand, develop new bumper jar, compel
The eyebrows and eyelashes.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention provides a kind of mechanical and hydraulic double-acting, can
Realize the Hydromechanical drilling jar of different jarring tonnage jarrings.
Technical scheme：To achieve the above object, Hydromechanical drilling jar of the invention includes mandrel and can stretched
Contracting it is set in the outer barrel on the outside of mandrel；Piston is provided between mandrel and outer barrel, the piston is between mandrel and outer barrel
Space in isolate to be provided with first flow and second flow channel in a fluid chamber, and piston and be respectively used to fluid and enter and stream
Go out the fluid chamber, the first flow is provided with check-valves, second flow channel and is provided with orifice choker；In the housing also
Slips and triggering sleeve are provided with, the triggering sleeve can be slided with the outer barrel relative to the mandrel；The slips can footpath
To expansion or shrinkage, when slips is in radial contraction state, its inwall is attached on the mandrel, when slips is in radially swollen
During swollen state, its outer wall is attached on the triggering sleeve；Outer barrel is additionally provided with sliding process relative with outer barrel in mandrel
The elastic energy storage part of middle absorption or release mechanical energy.
Further, the elastic energy storage part includes being provided with the shaft shoulder of evagination on back-moving spring, the mandrel, described
Outer barrel is provided with the back-up ring inside contracted, and the back-moving spring is arranged between the shaft shoulder of mandrel and the back-up ring of outer barrel.
Further, it is provided with disc spring group between the side of the piston and the second back-up ring of outer barrel；The piston
Opposite side the slips is propped up by bearing ring.
Further, the outer barrel includes pressure house and lower sleeve, and regulation is provided between pressure house and lower sleeve
Joint, and pressure house and lower sleeve and adjust joint and be spirally connected；The triggering sleeve, bearing ring, piston and disc spring group are equal
It is arranged in pressure house, second back-up ring is the end face of the regulating sleeve.
Further, the part that the mandrel is provided with splined shaft section, the outer barrel corresponding to splined shaft section is provided with
Matched spline outer barrel.
Further, the outer barrel also includes balancing sleeve, is controlled between the balancing sleeve and pressure house by balancing
Joint connection processed, and it is provided with dummy piston between mandrel and the balancing sleeve.
Further, the first support ring, the first hold-down ring and the first O-ring are provided between the piston and outer barrel；
The second support ring, the second hold-down ring and the second O-ring are provided between piston and mandrel.
Further, covered with filter element in the second flow channel of the piston.
Beneficial effect：The Hydromechanical drilling jar of the present invention has the reliability and hydraulic pressure of mechanical drilling jar concurrently
The large-tonnage advantage of formula bumper jar, reliable, service life is long, can meet most of with the jarring demand for boring unfreezing.
Brief description of the drawings
Accompanying drawing 1 (a)-accompanying drawing 1 (d) is the segmental structure figure of Hydromechanical drilling jar；
Accompanying drawing 2 is the structure chart of slips；
Accompanying drawing 3 is the structure chart of piston portion；
Accompanying drawing 4 (a)-accompanying drawing 4 (f) is the operation logic figure of Hydromechanical drilling jar.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
Hydromechanical drilling jar as shown in accompanying drawing 1 (a)-accompanying drawing 1 (d), including mandrel 1 and telescopically cover
It is located at the outer barrel 2 in the outside of mandrel 1；Be provided with piston 3 between mandrel 1 and outer barrel 2, the piston 3 mandrel 1 and outer barrel 2 it
Between space in isolate and first flow and second flow channel are provided with sealed a fluid chamber, and piston 3 are respectively used to stream
Body enters with flowing out the fluid chamber, and the first flow is provided with check-valves 31, second flow channel and is provided with orifice choker
32 so that when outside the relative extension outer barrel 2 of mandrel 1, fluid chamber is compressed, the fluid in it is in compressive state and passes through aperture
When flow controller 32 makes the pressure of its interior fluid reach in certain value, the retraction outer barrel 2 of mandrel 1, the fluid in fluid chamber is in normal
Pressure state；Be additionally provided with the housing slips 4 with triggering sleeve 5, it is described triggering sleeve 5 can with the outer barrel 2 relative to
The mandrel 1 is slided；The slips 4 can be radially expanded or shrink, when slips 4 is in radial contraction state, the attachment of its inwall
Keep axially being relatively fixed on the mandrel 1 and with mandrel 1, when slips 4 is in radial expanded state, its outer wall is attached to
Keep axially being relatively fixed on the triggering sleeve 5 and with triggering sleeve 5；It is additionally provided with inside outer barrel 2 in mandrel 1 and outer barrel 2
With respect to the elastic energy storage part 9 that mechanical energy is absorbed or discharged in sliding process.Fluid in fluid chamber is hydraulic oil or other are light
Matter oil.
Specifically, slips 4 is generally cylindric, as shown in Figure 2, and its inwall and outer wall are equipped with the axial straight line of multi-turn
It is provided with the keystone ring of array arrangement, and each end face of slips 4 and multiple extends vertically to other end from the end face
Notch on notch, two end faces is staggered in the circumference of slips 4, using this structure, and slips 4 has preferably radially swollen
The swollen performance with shrinking.Corresponding to the keystone ring on slips 4, the outer wall of the mandrel 1 on the inwall of outer barrel 2 with being provided with axial direction
The dovetail groove of linear array arrangement.
The outer barrel 2 includes top connection 21, upper bush 22, balancing sleeve 23, pressure house 24, trapped successively from top to bottom
Cylinder 25 and seal sleeve 29, the top connection 21 and upper bush 22 are spirally connected fixation, and upper bush 22 is spirally connected solid with balancing sleeve 23
It is fixed；Connected between balancing sleeve 23 and pressure house 24 by balancing control joint 28,24 points of balancing sleeve 23 and pressure house
It is not screwed together with balance control joint 28；Connected, and adjusted by adjusting joint 26 between pressure house 24 and lower sleeve 25
The outer sheath of joint 26 is saved provided with adjustment sleeve 27, the adjustment sleeve 27 is clipped between pressure house 24 and lower sleeve 25, and is adjusted
Key 28 is provided between a whole set of cylinder 27 and regulation joint 26 to be used to prevent both from relatively rotating.Seal sleeve 29 is fixed on down
The lower end of sleeve 25.Being equipped with the potted components such as sealing ring at above-mentioned each sleeve connection prevents fluid leakage.
The mandrel 1 includes balance shaft 11, main mandrel 12 and the hammer axle 13 that series connection is fixed together successively from top to bottom,
The lower end connection lower contact 14 of the hammer axle 13, the balance shaft 11, main mandrel 12 and hammer axle 13 are hollow structure so that
Cable can be connected to lower contact 14 from top connection 21 along hollow one kind of the centre of mandrel 1, and cable is in top connection 21 and lower contact
All the time relaxed state is between 14.
Dummy piston 6 is provided between the balance shaft 11 and balancing sleeve 23；The slips 4 is arranged on the pressure sleeve
In cylinder 24, and the lower section of slips 4 sets gradually bearing ring 7, piston 3 and disc spring group 8, and the disc spring group 8 includes multiple disc springs, institute
There is the positive and negative staggeredly aligned transfer in axial direction of the disc spring along pressure house 24.The side of piston 3 and the second gear inside pressure house 24
Disc spring group is provided between circle (end face of regulation joint 26), the opposite side of piston 3 props up the slips 4 by bearing ring 7.It is living
The fluid chamber that isolate of plug 3 are i.e. positioned at the lower end of piston 3, when mandrel 1 is stretched outward relative to outer barrel 2, the pressure in fluid chamber
Rise prevents both relative motions and energy accumulation, and when pressure reaches to a certain degree, fluid is flowed into by orifice choker 32
Space between piston 3 and dummy piston 6.
By adjusting pressure house 24 and the initial precompressed value of the disc spring of the position-adjustable to axial group 8 of regulation joint 26
Power is started with the jarring for setting bumper jar.
In order that piston 3 has preferable sealing property, as shown in Figure 3, it is provided between the piston 3 and outer barrel 2
First support ring 33, the first hold-down ring 34 and the first O-ring 35, the first support ring 33 have a thin-walled portion, the first pressure
The space that tight ring 34 is embedded between the thin-walled portion of the first support ring 33 and piston outer wall is compressed；Between piston 3 and mandrel 1
The second support ring 36, the second hold-down ring 37 and the second O-ring 38 are provided with, the second hold-down ring 37 has a thin-walled portion,
The space that second hold-down ring 37 is embedded between the thin-walled portion of the second support ring 36 and piston inner wall is compressed.It can so ensure
The sealing of circulation in pressure house 24, it is ensured that pressure house 24 be able to will not be revealed with energy storage.Covered in the second flow channel of piston 3
There is filter element 39, filter element is specially one layer of silk screen and the screen pack for being arranged on silk screen two ends.
The elastic energy storage part 9 includes being provided with the shaft shoulder of evagination, the pressure on back-moving spring 91, the main mandrel 12
The inside of power sleeve 24 is provided with the back-up ring inside contracted, and the back-moving spring 91 is arranged on the shaft shoulder of main mandrel 12 and the gear of pressure house 24
Between circle.
In order to realize good guidance quality and anti-heavily loaded performance, main mandrel 12 is provided with right in splined shaft section, the outer barrel
Matched spline outer barrel should be provided with the part of splined shaft section.
Shown in the operation principle of bumper jar such as accompanying drawing 4 (a)-accompanying drawing 4 (f), accompanying drawing 4 (a)-accompanying drawing 4 (f) starts for drawing cable
During jarring in bumper jar each part motion flow chart, after the state for reaching accompanying drawing 4 (f), in elastic energy storage part 9 and
In fluid chamber under the collective effect of hydraulic coupling, bumper jar backward recove is so iteratively produced jarring work into the state of accompanying drawing 4 (a)
With.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (8)
1. mechanical drilling jar, it is characterised in that：Including mandrel and telescopically it is set in the outer barrel on the outside of mandrel；In mandrel
Piston is provided between outer barrel, the piston isolates a fluid chamber, and piston in the space between mandrel and outer barrel
On be provided with first flow and second flow channel and be respectively used to fluid and enter with flowing out the fluid chamber, the first flow is provided with
Orifice choker is provided with check-valves, second flow channel；Slips and triggering sleeve, the triggering set are additionally provided with the housing
Cylinder can be slided with the outer barrel relative to the mandrel；The slips can be radially expanded or shrink, when slips is in radial contraction
During state, its inwall is attached on the mandrel, when slips is in radial expanded state, and its outer wall is attached to the triggering set
On cylinder；Outer barrel is additionally provided with the elastic energy storage portion that mechanical energy is absorbed or discharged in mandrel sliding process relative with outer barrel
Point.
2. mechanical drilling jar according to claim 1, it is characterised in that：The elastic energy storage part includes resetting bullet
The shaft shoulder of evagination is provided with spring, the mandrel, the outer barrel is provided with the back-up ring inside contracted, and the back-moving spring is arranged on core
Between the shaft shoulder of axle and the back-up ring of outer barrel.
3. mechanical drilling jar according to claim 1, it is characterised in that：The side of the piston and the of outer barrel
Disc spring group is provided between two back-up rings；The opposite side of the piston props up the slips by bearing ring.
4. mechanical drilling jar according to claim 3, it is characterised in that：The outer barrel includes pressure house with trapping
Cylinder, is provided with regulation joint between pressure house and lower sleeve, and pressure house is spirally connected with lower sleeve with regulation joint；It is described
Triggering sleeve, bearing ring, piston and disc spring group are arranged in pressure house, and second back-up ring is the regulating sleeve
End face.
5. mechanical drilling jar according to claim 1, it is characterised in that：The mandrel is provided with splined shaft section, described
Part in outer barrel corresponding to splined shaft section is provided with matched spline outer barrel.
6. mechanical drilling jar according to claim 1, it is characterised in that：The outer barrel also includes balancing sleeve, described
Connected between balancing sleeve and pressure house by balancing control joint, and balance is provided between mandrel and the balancing sleeve
Piston.
7. the mechanical drilling jar according to claim any one of 1-6, it is characterised in that：Set between the piston and outer barrel
It is equipped with the first support ring, the first hold-down ring and the first O-ring；The second support ring, the second pressure are provided between piston and mandrel
Tight ring and the second O-ring.
8. mechanical drilling jar according to claim 7, it is characterised in that：Covered with mistake in the second flow channel of the piston
Filtering element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710129491.3A CN107044265A (en) | 2017-03-06 | 2017-03-06 | Mechanical drilling jar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710129491.3A CN107044265A (en) | 2017-03-06 | 2017-03-06 | Mechanical drilling jar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107044265A true CN107044265A (en) | 2017-08-15 |
Family
ID=59544178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710129491.3A Withdrawn CN107044265A (en) | 2017-03-06 | 2017-03-06 | Mechanical drilling jar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107044265A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882526A (en) * | 2017-12-05 | 2018-04-06 | 西安石竹能源科技有限公司 | A kind of cable type mechanic jar |
| CN109611048A (en) * | 2019-01-24 | 2019-04-12 | 西安石竹能源科技有限公司 | A kind of cable type hydraulic shock device of the through track with stretching structure |
| CN109630056A (en) * | 2019-01-24 | 2019-04-16 | 西安石竹能源科技有限公司 | A kind of movable sealing structure of the mandrel of bumper jar and bumper jar based on the structure |
| CN111119777A (en) * | 2019-12-24 | 2020-05-08 | 中石化石油工程技术服务有限公司 | Perforation jar |
| CN112112571A (en) * | 2020-09-07 | 2020-12-22 | 中石化石油机械股份有限公司 | Jet flow range-extending hydraulic oscillator |
-
2017
- 2017-03-06 CN CN201710129491.3A patent/CN107044265A/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882526A (en) * | 2017-12-05 | 2018-04-06 | 西安石竹能源科技有限公司 | A kind of cable type mechanic jar |
| CN107882526B (en) * | 2017-12-05 | 2024-02-27 | 西安石竹能源科技有限公司 | Cable type mechanical jar |
| CN109611048A (en) * | 2019-01-24 | 2019-04-12 | 西安石竹能源科技有限公司 | A kind of cable type hydraulic shock device of the through track with stretching structure |
| CN109630056A (en) * | 2019-01-24 | 2019-04-16 | 西安石竹能源科技有限公司 | A kind of movable sealing structure of the mandrel of bumper jar and bumper jar based on the structure |
| CN109630056B (en) * | 2019-01-24 | 2023-09-01 | 西安石竹能源科技有限公司 | Dynamic seal structure of mandrel of jar and jar based on dynamic seal structure |
| CN109611048B (en) * | 2019-01-24 | 2024-03-12 | 西安石竹能源科技有限公司 | Cable type hydraulic jar with telescopic structure through line |
| CN111119777A (en) * | 2019-12-24 | 2020-05-08 | 中石化石油工程技术服务有限公司 | Perforation jar |
| CN111119777B (en) * | 2019-12-24 | 2022-04-08 | 中石化石油工程技术服务有限公司 | Perforation jar |
| CN112112571A (en) * | 2020-09-07 | 2020-12-22 | 中石化石油机械股份有限公司 | Jet flow range-extending hydraulic oscillator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170815 |
|
| WW01 | Invention patent application withdrawn after publication |