CN105840098A - Hydraulic impactor - Google Patents
Hydraulic impactor Download PDFInfo
- Publication number
- CN105840098A CN105840098A CN201610233873.6A CN201610233873A CN105840098A CN 105840098 A CN105840098 A CN 105840098A CN 201610233873 A CN201610233873 A CN 201610233873A CN 105840098 A CN105840098 A CN 105840098A
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- CN
- China
- Prior art keywords
- impact body
- hammering block
- pressure cylinder
- impact
- drag device
- 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.)
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Links
- 241000124033 Salix Species 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 230000033001 locomotion Effects 0.000 abstract description 6
- 239000011435 rock Substances 0.000 abstract description 5
- 238000002955 isolation Methods 0.000 abstract 5
- 238000005553 drilling Methods 0.000 description 23
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000013589 supplement 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (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 relates to a hydraulic impactor. The hydraulic impactor comprises a body, a drag device, a pressure isolation barrel, an impact body and an anvil, wherein the body is a hollow cylinder, the drag device is fixed at the upper part of the body, the anvil is fixed at the lower part of the body and extends into the body, the pressure isolation barrel is arranged between the anvil and the drag device, and the lower end of the pressure isolation barrel is meshed with the upper end of the anvil; the impact body is communicated with an inner cavity of the anvil, a nozzle is fixed in the anvil, the impact body is arranged in the pressure isolation barrel, the outer wall of the impact body is matched with the inner wall of the pressure isolation barrel, the lower end surface of the impact body is matched with the upper end surface of the anvil, and the impact body is restrained to perform reciprocating motion; a downward bulge is arranged in the center of the drag device and adopts a cylinder and cone combined body, the impact body is a barrel-shaped body provided with a step outside, and the bulge of the drag device corresponds to an upper end port of the impact body. Hydraulic energy is used sufficiently, a drill bit is enabled to generate axial vibration during rotation work, and the rock breaking efficiency is increased.
Description
Technical field
The present invention relates to the drilling well instrument of a kind of petroleum industry, in a kind of adaptation, hard a kind of efficient rock-breaking speed-raising instrument to hard formation, is specifically related to hydraulic impacter.
Background technology
Development along with Petroleum Industry, China is more and more higher to demand and the requirement of petroleum resources, exploration and development to oil constantly expands, and the degree of depth of producing well is constantly deepened, and the drilling environment faced becomes increasingly complex, traditional drilling equipment power loss is bigger, bit speed is slow, and instrument is fragile because of self-condition factor, thus causes the drilling well used time many, drilling cost uprises, and seriously constrains the process of oil-gas field development.Therefore, research and development new tool becomes a kind of new trend.For adapting to the needs of oil-gas exploration job development, oil drilling work is mainly expanded to deep and Complex Blocks, and during deep drilling, the difficult problem that hard formation creeps into is the most prominent.From detritus theoretically, percussion-rotary drilling technique is one of effective ways solving a hard-rock boring difficult problem, can improve drilling efficiency, reduces well deflection.Impact rotary drilling is exactly connection impactor on the drill bit of common rotary drilling drilling tool, relies on the high pressure drilling liquid medium of percussion drilling, promotes impactor to move up and down, clashes into drill bit, and drill bit is fractured rock under the synergy that impact dynamic load and static pressure turn round.
Summary of the invention
The problems such as it is an object of the invention to provide hydraulic impacter, it is not enough that this hydraulic impacter is used for solving existing impactor impulsive force, and efficiency is low and impact process is loaded down with trivial details.
The technical solution adopted for the present invention to solve the technical problems is: this hydraulic impacter include body, drag device, every pressure cylinder, impact body, hammering block, body is a hollow circular cylinder, drag device is fixed on body upper part, hammering block is fixed on body lower part, hammering block extend in body, it is every pressure cylinder between hammering block and drag device, is interlocked with hammering block upper end every pressure cylinder lower end；Impact body communicates with hammering block inner chamber, fixed nozzle in hammering block, and impact body is arranged in pressure cylinder, and impact body outer wall matches with every pressure cylinder inwall, matches with hammering block upper surface in impact body lower surface, and constraint impact body moves reciprocatingly；Drag device center has one downwardly convex, and projection is cylinder and circular cone combination, and impact body is the outside cylindrical body with step, and the projection of drag device is corresponding with impact body upper port.
In such scheme every pressure cylinder be the reducing cylinder that inwall has limited step, upper and lower every pressure cylinder limited step is each provided with hole, rectangular upper strata and rectangular lower floor hole, hole, upper strata and lower floor hole are the most circumferentially evenly arranged on pressure cylinder barrel, being evenly distributed fluted inside pressure cylinder, groove center has a rhombus protruding；Impact body outer steps is in the underface every pressure cylinder limited step, and impact body external wall of upper portion has been evenly distributed willow leaf shape boss, and willow leaf shape boss, corresponding between groove and rhombus projection on pressure cylinder, has rectangular recess under impact body step.
In such scheme, impact body lower surface is circumferentially uniformly arranged the bevelled trapezoid boss of band, hammering block is the cylindrical body that outside has step, hammering block upper surface is the most also uniformly arranged the bevelled trapezoid boss of band, the trapezoid boss of hammering block upper end and impact body lower end trapezoid boss contact；Have dentalation every pressure cylinder lower surface, hammering block upper end outer wall has step, the dentalation having at this step with being engaged mutually every pressure cylinder lower surface.
Being provided with sleeve in such scheme between body and hammering block, in the middle part of hammering block, outer wall is eight-sided formation, and sleeve lining is octagon groove structure, and hammering block is engaged mutually with sleeve；Inner body wall bottom arranges projection, and hammering block upper end outer wall has fixing groove, and hammering block is fixed together by projection with body.
In such scheme, impact body lower surface is circumferentially uniformly arranged six and carries bevelled trapezoid boss, hammering block upper surface is the most also uniformly arranged six and carries bevelled trapezoid boss, the bevelled trapezoid boss of impact body band and hammering block band bevelled trapezoid boss one_to_one corresponding.
Such scheme is evenly distributed inside pressure cylinder six fluted, impact body external wall of upper portion has been evenly distributed six willow leaf shape boss.
The method have the advantages that
1, the present invention is sufficiently used the energy that surges, and makes drill bit produce axial vibration while rotary work, improves efficiency of breaking rock.Axial vibration reduces the impact of disturbing factor in drilling process, reduces the drill bit sensitiveness to inhomogeneous formation, improves hole quality.Impactor does not has the intermediate buffering energy storage device such as block stamp, spring, therefore there is not weak part, and therefore the life-span is long, and impact effect is good.
2, inner chamber of the present invention forms loop, does not has the loss of drilling fluid, and the residual pressure by drilling fluid works, it is not necessary to supplement energy by external force.
3, present configuration is fairly simple, it is easy to make finished product and cost is relatively low, it is simple in the popularization and application of Oil Field.
4, working stability of the present invention, adapts to deep-well.
5, when the present invention works short with the rock contact time, can effectively reduce bit wear and extend bit life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the front elevational schematic of impact body of the present invention；
Fig. 3 is the schematic top plan view of impact body of the present invention；
Fig. 4 is the front elevational schematic of hammering block of the present invention；
Fig. 5 is the schematic top plan view of hammering block of the present invention；
Fig. 6 is the present invention structural representation every pressure cylinder.
In figure: 1. body；2. drag device；3. every pressure cylinder；4. impact body；5. nozzle；6. sleeve；7. hammering block；8. willow lobed projection；9. rhombus is protruding；10. groove；11. lower floor holes；12. hole, upper stratas；13. bracers；14. fix groove.
Detailed description of the invention
The present invention is further illustrated below in conjunction with the accompanying drawings:
As shown in Figure 1, this hydraulic impacter include body 1, drag device 2, every pressure cylinder 3, impact body 4, hammering block 7, body 1 is a hollow circular cylinder, drag device 2 is fixed on body 1 top, hammering block 7 is fixed on body 1 bottom, hammering block 7 extend in body 1, is every pressure cylinder 3, is interlocked with hammering block 7 upper end every pressure cylinder 3 lower end between hammering block 7 and drag device 2；Fixed nozzle 5 in hammering block 7, impact body 4 is arranged in pressure cylinder 3, and impact body 4 outer wall matches with every pressure cylinder 3 inwall, matches with hammering block 7 upper surface in impact body 4 lower surface, makes impact body 4 do circumference reciprocating motion according to inverted " u "-shaped path；It is downwardly convex that drag device 2 center has one, projection is cylinder and circular cone combination, impact body 4 is the outside cylindrical body with step, the projection of drag device 2 is corresponding with impact body 4 upper port, drag device 2 effect is when impact body 4 is when moving upward, inserting impact body 4 inner chamber, reduce flow area, formation builds the pressure.Increase the resistance that impact body 4 is up, make impact body 4 quick deceleration, prevent impact body 4 from going out body 1 when moving upward and producing fault.The most also increase 4 times action edges of impact body, make the quick speedup of impact body 4, improve final impulsive force.
Refering to Fig. 6, for inwall, there is the reducing cylinder of limited step every pressure cylinder 3, upper and lower every pressure cylinder 3 limited step is each provided with hole, rectangular upper strata 12 and rectangular lower floor hole 11, hole, upper strata 12 and lower floor hole 11 are the most circumferentially evenly arranged on pressure cylinder 3 barrel, hole, upper strata 12 meeting quick pressure releasing when impact body 4 stress moves upward, reduces the up resistance of impact body 4；Can be corresponding with impact body 4 lateral grooves 10 during impact body 4 is descending every pressure cylinder 3 lower floor hole 11, form pressure release passage, reduce friction in down stroke.It is evenly distributed fluted every pressure cylinder 3 inside, groove center has a rhombus projection 9, shown in Fig. 2, Fig. 3, impact body 4 entirety is made up of the hollow cylinder of upper and lower two different-diameters, upper and lower two different-diameter cylinders form step on the outer wall, first half cylinder diameter is less, and lower half cylinder radius is bigger.Impact body 4 outer steps is in the underface every pressure cylinder 3 limited step, impact body 4 external wall of upper portion has been evenly distributed willow lobed projection 8, willow lobed projection 8 is corresponding between groove and rhombus projection 9 on pressure cylinder 3, when impact body 4 moves, groove and rhombus protruding 9 on pressure cylinder 3 all contact with the willow lobed projection 8 outside impact body 4, and guide it to do cycle movement generation circumference reciprocating motion according to inverted " u "-shaped path.Rectangular recess 10 is had under impact body 4 step, in impact body 4 circumference reciprocatory movement, this rectangular recess 10 is with the process constantly repeating " closing UNICOM to close " every pressure cylinder 3 lower floor hole 11: impact body 4 is during up, impact body 4 lateral grooves 10 and closing of staggering every pressure cylinder 3 lower floor hole 11, drilling fluid builds the pressure, and on impact body 4, action edge constantly increases；During descending, impact body 4 lateral grooves 10 is with every the relative UNICOM in pressure cylinder 3 lower floor hole 11, drilling fluid pressure release, and impact body 4 friction in down stroke reduces, and hammering block 7 impulsive force is increased by impact body 4.
Impact body 4 lower surface is circumferentially uniformly arranged six and carries bevelled trapezoid boss, in conjunction with Fig. 4, shown in Fig. 5, hammering block 7 is the outside cylindrical body with step, hammering block 7 upper surface is the most also uniformly arranged six and carries bevelled trapezoid boss, the trapezoid boss of hammering block 7 upper end and impact body 4 lower end trapezoid boss contact, impact body 4 lower end has 6 to carry bevelled trapezoid boss, during impact body 4 is descending, the boss with hammering block 7 upper end contacts, impact body 4 is forced to produce certain rotation at the end of descending process, return the most stuck by downlink path when preventing impact body 4 up, ensure smoothly completing of inverted " u "-shaped path.Have dentalation every pressure cylinder 3 lower surface, hammering block 7 upper end outer wall has step, the dentalation having at this step with being engaged mutually every pressure cylinder 3 lower surface, every pressure cylinder 3 lower end dentalation so that it is be engaged with hammering block 7 phase, produces the reaction force making impact body 4 rotate.
Being provided with sleeve 6 between body 1 and hammering block 7, in the middle part of hammering block 7, outer wall is eight-sided formation, and sleeve 6 inwall is octagon groove structure, and hammering block 7 is engaged with sleeve 6 phase；Body 1 inner wall lower arranges a bracer 13, and hammering block 7 upper end outer wall has fixing groove 14, hammering block 7 to be fixed together by a bracer 13 with body 1, make hammering block 7 intentions, and body 1 is threadeded with sleeve 6, can be handed on by upper drilling string moment of torsion.Hammering block 7 outer octagonal structure, be used for being connected with sleeve 6 transmission moment of torsion.Hammering block 7 constantly vibrates under the impact of impact body 4, and passes to drill bit by lower end mother's spiral shell screw thread.Nozzle 5 is placed on hammering block 7 inner chamber top, can regulate the size of impact body 4 impulsive force very easily.
As initial state, operation principle of the present invention is described at bottom dead centre with impact body 4.Owing to nozzle 5 diameter is less, drilling fluid builds the pressure herein, and impact body 4 is up under upper and lower differential pressure action.Impact body 4 willow lobed projection 8 is under the effect of rhombus projection 9 in pressure cylinder 3 groove, generation (counterclockwise) clockwise circumferentially rotates, now outside impact body 4, lower end groove 10 closes space with formation of staggering every pressure cylinder 3 lower floor hole 11, and pressure is improper to be increased, and impact body 4 is the most up.Up along with impact body 4, drag device 2 is protruding inserts impactor inner chamber, forces impact body 4 upper end drilling liquid pressure to increase, and impact body 4 is decelerated to top dead-centre.Along with the continuous increase of upper lateral pressure, impact body 4 starts to accelerate descending.Impact body 4 willow lobed projection 8 is under the effect of rhombus projection 9 in pressure cylinder 3 groove, generation (clockwise) counterclockwise circumferentially rotates, now outside impact body 4 lower end groove 10 with every pressure cylinder 3 lower floor hole 11 just relative to UNICOM, impact body 4 lower end drilling liquid pressure constantly reduces, and impact body 4 accelerates descending.The impact body 4 of fast downlink motion impacts hammering block 7, and realizes the once vibration of drill bit under the effect of the pressure of the drill.Now impact body 4 is in bottom dead centre, repeats said process, just achieves the periodic longitudinal vibration of drill bit.
Claims (6)
1. a hydraulic impacter, it is characterized in that: this hydraulic impacter include body (1), drag device (2), every pressure cylinder (3), impact body (4), hammering block (7), body (1) is a hollow circular cylinder, drag device (2) is fixed on body (1) top, hammering block (7) is fixed on body (1) bottom, hammering block (7) extend in body (1), is every pressure cylinder (3), is interlocked with hammering block (7) upper end every pressure cylinder (3) lower end between hammering block (7) and drag device (2)；Impact body (4) communicates with hammering block (7) inner chamber, hammering block (7) interior fixed nozzle (5), impact body (4) is arranged in pressure cylinder (3), impact body (4) outer wall matches with every pressure cylinder (3) inwall, matching with hammering block (7) upper surface in impact body (4) lower surface, constraint impact body (4) moves reciprocatingly；Drag device (2) center has one downwardly convex, and projection is cylinder and circular cone combination, and impact body (4) be the outside cylindrical body with step, and the projection of drag device (2) is corresponding with impact body (4) upper port.
Hydraulic impacter the most according to claim 1, it is characterized in that: described every pressure cylinder (3) be the reducing cylinder that inwall has limited step, upper and lower every pressure cylinder (3) limited step is each provided with hole, rectangular upper strata (12) and rectangular lower floor hole (11), hole, upper strata (12) and lower floor hole (11) are the most circumferentially evenly arranged on pressure cylinder (3) barrel, being evenly distributed fluted every pressure cylinder (3) inside, groove center has a rhombus protruding (9)；Impact body (4) outer steps is in the underface every pressure cylinder (3) limited step, impact body (4) external wall of upper portion has been evenly distributed willow lobed projection (8), willow lobed projection (8) is positioned between the upper corresponding groove of pressure cylinder (3) and rhombus protruding (9), has rectangular recess (10) under impact body (4) step.
Hydraulic impacter the most according to claim 2, it is characterized in that: described impact body (4) lower surface is circumferentially uniformly arranged the bevelled trapezoid boss of band, hammering block (7) is the outside cylindrical body with step, hammering block (7) upper surface is the most also uniformly arranged the bevelled trapezoid boss of band, the trapezoid boss of hammering block (7) upper end and impact body (4) lower end trapezoid boss contact；Have dentalation every pressure cylinder (3) lower surface, hammering block (7) upper end outer wall has step, the dentalation having at this step with being engaged mutually every pressure cylinder (3) lower surface.
4. according to the hydraulic impacter described in claim 1 or 3, it is characterized in that: between described body (1) and hammering block (7), be provided with sleeve (6), hammering block (7) middle part outer wall is eight-sided formation, sleeve (6) inwall is octagon groove structure, and hammering block (7) is engaged mutually with sleeve (6)；Body (1) inner wall lower arranges projection, and hammering block (7) upper end outer wall has fixing groove (14), hammering block (7) to be fixed together by projection with body (1).
Hydraulic impacter the most according to claim 4, it is characterized in that: described impact body (4) lower surface is circumferentially uniformly arranged six and carries bevelled trapezoid boss, hammering block (7) upper surface is the most also uniformly arranged six and carries bevelled trapezoid boss, and impact body (4) carries bevelled trapezoid boss and hammering block (7) to carry bevelled trapezoid boss one_to_one corresponding.
Hydraulic impacter the most according to claim 5, it is characterised in that: described every pressure cylinder (3) internal be evenly distributed six fluted, impact body (4) external wall of upper portion has been evenly distributed six willow lobed projections (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610233873.6A CN105840098B (en) | 2016-04-16 | 2016-04-16 | Hydraulic impacter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610233873.6A CN105840098B (en) | 2016-04-16 | 2016-04-16 | Hydraulic impacter |
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| Publication Number | Publication Date |
|---|---|
| CN105840098A true CN105840098A (en) | 2016-08-10 |
| CN105840098B CN105840098B (en) | 2018-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610233873.6A Active CN105840098B (en) | 2016-04-16 | 2016-04-16 | Hydraulic impacter |
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| Country | Link |
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| CN (1) | CN105840098B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735597A (en) * | 2019-11-03 | 2020-01-31 | 东北石油大学 | hydraulic drive drill bit impactor |
| CN112681994A (en) * | 2021-03-22 | 2021-04-20 | 成都迪普金刚石钻头有限责任公司 | Low-pressure-consumption high-amplitude hydraulic pulse device and method |
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| US20060054322A1 (en) * | 2004-09-16 | 2006-03-16 | Rose Lawrence C | Multiple impact jar assembly and method |
| CN203701951U (en) * | 2014-01-22 | 2014-07-09 | 中国石油大学(华东) | Torsion impact generator |
| CN104343385A (en) * | 2013-07-23 | 2015-02-11 | 中国石油化工股份有限公司 | Hydraulic impactor |
| CN104533283A (en) * | 2014-12-26 | 2015-04-22 | 长江大学 | Hydraulic circumferential torque impact generator |
| CN204663384U (en) * | 2015-04-23 | 2015-09-23 | 浙江睿智钢业有限公司 | Drilling well percussion mechanism |
| CN104989307A (en) * | 2015-07-17 | 2015-10-21 | 东北石油大学 | Hydraulic oscillation circumferential impactor |
| CN105239921A (en) * | 2015-11-18 | 2016-01-13 | 东北石油大学 | Hydraulic-drive impactor |
-
2016
- 2016-04-16 CN CN201610233873.6A patent/CN105840098B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060054322A1 (en) * | 2004-09-16 | 2006-03-16 | Rose Lawrence C | Multiple impact jar assembly and method |
| CN104343385A (en) * | 2013-07-23 | 2015-02-11 | 中国石油化工股份有限公司 | Hydraulic impactor |
| CN203701951U (en) * | 2014-01-22 | 2014-07-09 | 中国石油大学(华东) | Torsion impact generator |
| CN104533283A (en) * | 2014-12-26 | 2015-04-22 | 长江大学 | Hydraulic circumferential torque impact generator |
| CN204663384U (en) * | 2015-04-23 | 2015-09-23 | 浙江睿智钢业有限公司 | Drilling well percussion mechanism |
| CN104989307A (en) * | 2015-07-17 | 2015-10-21 | 东北石油大学 | Hydraulic oscillation circumferential impactor |
| CN105239921A (en) * | 2015-11-18 | 2016-01-13 | 东北石油大学 | Hydraulic-drive impactor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735597A (en) * | 2019-11-03 | 2020-01-31 | 东北石油大学 | hydraulic drive drill bit impactor |
| CN112681994A (en) * | 2021-03-22 | 2021-04-20 | 成都迪普金刚石钻头有限责任公司 | Low-pressure-consumption high-amplitude hydraulic pulse device and method |
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| Publication number | Publication date |
|---|---|
| CN105840098B (en) | 2018-02-23 |
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