CN104295228B - The reciprocating drilling well impacter of pressure reduction and method - Google Patents
The reciprocating drilling well impacter of pressure reduction and method Download PDFInfo
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- CN104295228B CN104295228B CN201310298385.XA CN201310298385A CN104295228B CN 104295228 B CN104295228 B CN 104295228B CN 201310298385 A CN201310298385 A CN 201310298385A CN 104295228 B CN104295228 B CN 104295228B
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- pendulum
- hole
- cavity
- drilling well
- impacter
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B1/00—Percussion drilling
- E21B1/02—Surface drives for drop hammers or percussion drilling, e.g. with a cable
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B1/00—Percussion drilling
Abstract
The present invention proposes a kind of reciprocating drilling well impacter of pressure reduction, including: cylindrical body；It is located within the body and coupled tubular isolated location；It is fixed on the pressure regulating device for producing chock pressure difference on described isolated location；Pendulum；Wherein, when pendulum is in primary importance, pendulum blocks the first through hole and has cut off the fluidic intercommunication between the first cavity and the second cavity, when pendulum moves to the second position in the downstream being in primary importance, first through hole exposes, make a part of fluid from the first cavity can enter into lower area through the first through hole, the second cavity and the second through hole, the invention allows for a kind of boring method, belong to field of oil drilling.Drilling well impacter low power consuming according to the present invention, the simple fluid power being utilized fluid by the principle of Machine Design；Assemble simple, cheap for manufacturing cost simultaneously；Mechanical realization design is succinct.
Description
Technical field
The present invention relates to a kind of impacter for drillng operation and method, particularly to a kind of reciprocating drilling well impacter of pressure reduction and method, belong to field of oil drilling.
Background technology
In geological exploration engineering and oil drilling industry, increase along with the development of oil-gas exploration and development and drilling depth, the hard formation run in drilling process gets more and more, the formation hardness such as mud stone, sandstone, igneous rock are high, abrasiveness is strong and drillability is poor, cause the problems such as bit wear is serious, frequent trips, drilling well timeliness are low.
Impacter can effectively solve the problems referred to above as the key tool of rotating drilling, improves drilling efficiency.At present, impacter has been carried out substantial amounts of research by related personnel, and hydraulic impacter advantage is especially prominent, but its structure is complicated, element is various, is unfavorable for installing, and its key components and parts wears no resistance simultaneously, thus the life-span is shorter.
Summary of the invention
It is an object of the invention to propose a kind of easy reciprocating drilling well impacter of pressure reduction, its simple in construction, parts are few, therefore easy for installation and stable performance；It starts easily simultaneously, working barrel forces down, property regulation is more convenient, this greatly reduces experimentation cost；Whole impacter is easy, safe and reliable, substantially increases drilling well timeliness.
The present invention proposes a kind of reciprocating drilling well impacter of pressure reduction, including: cylindrical body, its two ends are connected with drilling tool with drill bit respectively；It is located within the body and coupled tubular isolated location, intrinsic space is divided into the first cavity being in radially inner side and the second cavity being in radial outside by described isolated location, and isolated location is provided with the first through hole and is in second through hole in downstream relative to the first through hole；Being fixed on the pressure regulating device for producing chock pressure difference on described isolated location, wherein the second cavity is communicated to the lower area being in below pressure regulating device of the first cavity by the second through hole；Pendulum, this pendulum is connected with isolated location by elastic component so that the impulsive force of pendulum can be transferred to drill bit by isolated location and body；Wherein, when pendulum is in primary importance, pendulum blocks the first through hole and has cut off the fluidic intercommunication between the first cavity and the second cavity, when pendulum moves to the second position in the downstream being in primary importance, first through hole exposes so that a part of fluid from the first cavity can enter into lower area through the first through hole, the second cavity and the second through hole.
In one embodiment, isolated location includes isolating cylinder and tubular pressure regulating seat, and pressure regulating seat fluid-sealing type is connected to below isolating cylinder, and pressure regulating device is the tubular pressure regulator valve that fluid-sealing type is connected within this pressure regulating seat.
In one embodiment, the upper end of pressure regulator valve leans the part radially-inwardly protruded of pressure regulating seat.
In one embodiment, the second through hole is positioned on the pressure regulating seat of isolated location.
In one embodiment, when pendulum is in the second position, pendulum and pressure regulating seat contact with each other to transmit impulsive force.
In one embodiment, elastic component is longitudinally disposed spring, and spring bottom is connected to the part radially-inwardly protruded of isolated location, and top is connected to the part projected radially outward of pendulum.
In one embodiment, isolated location top is provided with the pressure ring of ring-type, and this pressure ring is adjacent to be connected to the axially inner side of body, and pressure ring can limit the upward stroke of pendulum.
In one embodiment, pendulum is radial section is the hollow piston of T-shaped.
In one embodiment, body has the helicitic texture for being connected to drill bit and drilling tool at upper and lower end place.
The invention allows for a kind of method carrying out drilling well impact by the reciprocating drilling well impacter of this pressure reduction, at least include:
Step 1: produce chock pressure difference by pressure regulating device；
Step 2: make pendulum move from primary importance to the second position by described pressure reduction, when pendulum is in primary importance, pendulum blocks the first through hole and has cut off the fluidic intercommunication between the first cavity and the second cavity, when pendulum moves to the second position in the downstream being in primary importance, first through hole exposes, making a part of fluid from the first cavity can enter into lower area through the first through hole, the second cavity and the second through hole, chock pressure difference is eased；
Step 3: pendulum rises under the effect of the counteracting force of impulsive force and the elastic force of elastic component, recovers afterwards to primary importance, again blocks the first through hole.
The reciprocating drilling well impacter of pressure reduction according to the present invention, the function of break-make fluid is achieved by elastomeric element, pendulum and cooperating of the first through hole, in conjunction with the second through hole, the break-make effectively utilizing fluid constantly causes pressure reduction gentle solution pressure reduction, pressure reduction is utilized to affect the motion of pendulum and elastic component in turn so that it is constantly drill bit to be impacted.Only need according to the difference of required pressure reduction to change pressure regulating device so that execute-in-place motility is big simultaneously.
Impacter low power consuming according to the present invention, the simple fluid power being utilized fluid by the principle of Machine Design；Assemble simple, cheap for manufacturing cost simultaneously；Mechanical realization design is succinct.
Above-mentioned technical characteristic various technically feasible modes can be combined to produce new embodiment, if the purpose of the present invention of being capable of.
Accompanying drawing explanation
Hereinafter by based on being only the embodiment of indefiniteness and with reference to accompanying drawing, the present invention being described in more detail.Wherein:
Fig. 1 schematically illustrates the reciprocating drilling well impacter 10 of the pressure reduction according to the present invention.
In the drawings, identical component is indicated by identical accompanying drawing labelling.Accompanying drawing is not drawn according to actual ratio.
Detailed description of the invention
Come below with reference to accompanying drawings to introduce the present invention in detail.
Fig. 1 shows the reciprocating drilling well impacter 10 of the pressure reduction according to the present invention, and it can be placed between drill bit and drilling tool and drill bit is impacted.
Drilling well impacter 10 includes the cylindrical body 1 being positioned at outside, and body 1 is for being fixed in drill string by drilling well impacter 10 and the remaining part of drilling well impacter 10 being played support and protective effect.In one embodiment, body 1 two ends are connected with drilling tool with drill bit respectively, for this purpose it is proposed, it has the helicitic texture for being connected to drill bit and drilling tool at upper and lower end place.So not only contribute to connect, the axial location of drilling well impacter 10 can be realized simultaneously.
Drilling well impacter 10 also includes being positioned at body 1 coupled tubular isolated location, and the effect of this isolated location is the first cavity 11 being divided in the space in body 1 and being in radially inner side and the second cavity 12 being in radial outside.Isolated location is provided with the first through hole 4 and is in second through hole 9 in downstream relative to the first through hole 4.Here, term " connection " refers mainly to fluid and can pass through.
In the embodiment shown in fig. 1, isolated location includes isolating cylinder 6 and tubular pressure regulating seat 7, and the longitudinal cross-section of pressure regulating seat 7 is the lower section that Z-type and fluid-sealing type are connected to isolating cylinder 6.
Drilling well impacter 10 also includes the pressure regulating device 8 for producing chock pressure difference being fixed on described isolated location.Wherein the second cavity 12 is in the lower area below pressure regulating device 8 by what the second through hole 9 was communicated to the first cavity 11.
Pressure regulating device 8 is connected to the tubular pressure regulator valve within pressure regulating seat 7 for fluid-sealing type, and the minimum diameter of pressure regulating seat 7 is more than the internal diameter of pressure regulator valve 8, in order to cause chock pressure difference.The upper end of pressure regulator valve 8 leans the part radially-inwardly protruded of pressure regulating seat 7.
Drilling well impacter 10 also includes pendulum 3, for drill bit is applied impulsive force.In the embodiment shown in fig. 1, pendulum 3 is the hollow piston of T-shaped for radial section.And pressure regulating seat 7 can limit the downward stroke of pendulum 3.When pendulum 3 is in the second position, pendulum 3 and pressure regulating seat 7 contact with each other to transmit impulsive force.
Pendulum 3 is connected with isolated location by elastic component 5.Elastic component 5 can be longitudinally disposed spring, and spring bottom is connected to the part radially-inwardly protruded of isolated location, and top is connected to the part projected radially outward of pendulum 3.The impulsive force of pendulum 3 can be transferred to drill bit by the pressure regulating seat 7 of isolated location and body 1.
When pendulum 3 is in primary importance (initial position), pendulum 3 blocks the first through hole 4 and has cut off the fluidic intercommunication between the first cavity 11 and the second cavity 12；When pendulum 3 moves to the second position in the downstream being in primary importance, described first through hole 4 exposes so that a part of fluid from described first cavity 11 can enter into, through the first through hole 4 and the second cavity 12 and the second through hole 9, the lower area being in below pressure regulating device 8.
Impacter 10 also includes the third through-hole 13 between the first through hole 4 and the second through hole 9 on isolating cylinder 6.When pendulum 3 moves downward but also blocks the first through hole 4, third through-hole 13 is used for the pressure reduction between counter balance pocket 12 and elastic component 5, pendulum 3 can be continued descending, until the first through hole 4 connects with chamber 11, now whole tubing string realizes upper and lower pressure balance, pendulum 3 rises under the effect of the counteracting force of impulsive force and the elastic force of elastic component 5, recovers afterwards to primary importance, again blocks the first through hole 4.
In one embodiment, the second through hole 9 may be located on the pressure regulating seat 7 of isolated location, and it is positioned at below pressure regulating device 8 in a longitudinal direction.To ensure the fluid communication between the lower area of the second cavity and pressure regulating device 8, thus the chock pressure difference that pressure regulating device 8 produces is balanced.
In one embodiment, isolated location top is provided with the pressure ring 2 of ring-type, and pressure ring 2 is adjacent to be connected to the axially inner side of body 1, and the internal diameter of pressure ring 2 is less than the internal diameter of isolated location, thus pressure ring 2 can limit the upward stroke of pendulum 3.
The invention allows for a kind of method carrying out drilling well impact by the reciprocating drilling well impacter 10 of pressure reduction:
Step 1: produce chock pressure difference by pressure regulating device 8；
Step 2: make pendulum 3 move from primary importance to the second position by described pressure reduction, when pendulum 3 is in primary importance, pendulum 3 blocks the first through hole 4 and has cut off the fluidic intercommunication between the first cavity 11 and the second cavity 12, when pendulum 3 moves to the second position 12 in the downstream being in primary importance 11, first through hole 4 exposes, making a part of fluid from the first cavity 11 can enter into lower area through first through hole the 4, second cavity 12 and the second through hole 9, described pressure reduction is eased；
Step 3: pendulum 3 rises under the effect of the counteracting force of impulsive force and the elastic force of elastic component 5, recovers afterwards to primary importance, again blocks the first through hole.
Impacter 10 and corresponding method according to the present invention have several advantages that
1) coordinating by pendulum 3 and spring 5, the design of pressure transmission hole 4 (the first through hole) and balance pipe 9 (the second through hole) is added, it is achieved that the reciprocating motion of pendulum 3；
2) design of pressure regulating device 8 allows to regulate chock pressure difference according to field demand so that property regulation is more convenient；
3) whole impacter is easy, safe and reliable, significantly reduces operating cost, improves drilling well timeliness；
4) simple in construction, compact, parts are few, easy to process, stable performance, start easily, and working barrel forces down.
Although by reference to preferred embodiment, invention has been described, but without departing from the scope of the invention, it is possible to it is carried out various improvement and parts therein can be replaced with equivalent.The invention is not limited in the specific embodiment disclosed in literary composition, but include all technical schemes falling in scope of the claims.
Claims (10)
1. the reciprocating drilling well impacter of pressure reduction, including:
Cylindrical body, its two ends are connected with drilling tool with drill bit respectively；
It is positioned at described internal and coupled tubular isolated location, described intrinsic space is divided into the first cavity being in radially inner side and the second cavity being in radial outside by described isolated location, and described isolated location is provided with the first through hole and is in second through hole in downstream relative to described first through hole；
Being fixed on the pressure regulating device for producing chock pressure difference on described isolated location, wherein said second cavity is in the lower area below described pressure regulating device by what described second through hole was communicated to described first cavity；
Pendulum, described pendulum is connected with described isolated location by elastic component so that the impulsive force of described pendulum can be transferred to drill bit by described isolated location and described body；
Wherein, when described pendulum is in primary importance, described pendulum blocks described first through hole and has cut off the fluidic intercommunication between described first cavity and described second cavity, when described pendulum moves to the second position in the downstream being in primary importance, described first through hole exposes so that a part of fluid from described first cavity can enter into described lower area through described first through hole, described second cavity and described second through hole.
2. drilling well impacter according to claim 1, it is characterized in that, described isolated location includes isolating cylinder and tubular pressure regulating seat, and described pressure regulating seat fluid-sealing type is connected to below described isolating cylinder, and described pressure regulating device is the tubular pressure regulator valve that fluid-sealing type is connected within described pressure regulating seat.
3. drilling well impacter according to claim 2, it is characterised in that the upper end of described pressure regulator valve leans the part radially-inwardly protruded of described pressure regulating seat.
4. the drilling well impacter according to Claims 2 or 3, it is characterised in that described second through hole is positioned on the described pressure regulating seat of described isolated location.
5. the drilling well impacter according to Claims 2 or 3, it is characterised in that when described pendulum is in the second position, described pendulum and described pressure regulating seat contact with each other to transmit impulsive force.
6. the drilling well impacter according to any one of Claim 1-3, it is characterized in that, described elastic component is longitudinally disposed spring, and described spring bottom is connected to the part radially-inwardly protruded of described isolated location, and top is connected to the part projected radially outward of described pendulum.
7. the drilling well impacter according to any one of Claim 1-3, it is characterized in that, described isolated location top is provided with the pressure ring of ring-type, and described pressure ring is adjacent to be connected to the axially inner side of described body, and described pressure ring can limit the upward stroke of described pendulum.
8. the drilling well impacter according to any one of Claim 1-3, it is characterised in that described pendulum is radial section is the hollow piston of T-shaped.
9. the drilling well impacter according to any one of Claim 1-3, it is characterised in that described body has the helicitic texture for being connected to drill bit and drilling tool at upper and lower end place.
10. the method carrying out drilling well impact by the drilling well impacter according to any one of claim 1 to 9, at least includes:
Step 1: produce chock pressure difference by pressure regulating device；
Step 2: make pendulum move from primary importance to the second position by described pressure reduction, when described pendulum is in primary importance, described pendulum blocks described first through hole and has cut off the fluidic intercommunication between described first cavity and described second cavity, when described pendulum moves to the second position in the downstream being in primary importance, described first through hole exposes so that a part of fluid from described first cavity can enter into lower area to alleviate described pressure reduction through described first through hole, described second cavity and described second through hole；
Step 3: described pendulum rises under the effect of the counteracting force of impulsive force and the elastic force of elastic component, recovers afterwards to primary importance, again blocks the first through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310298385.XA CN104295228B (en) | 2013-07-16 | 2013-07-16 | The reciprocating drilling well impacter of pressure reduction and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310298385.XA CN104295228B (en) | 2013-07-16 | 2013-07-16 | The reciprocating drilling well impacter of pressure reduction and method |
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| CN104295228A CN104295228A (en) | 2015-01-21 |
| CN104295228B true CN104295228B (en) | 2016-07-06 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105696970B (en) * | 2016-04-14 | 2018-05-08 | 东营万邦石油科技有限责任公司 | Interval liquid flow impact formula well cementation vibrator |
| CN105696969B (en) * | 2016-04-14 | 2018-04-03 | 东营万邦石油科技有限责任公司 | Pulse machine impacting type well cementation vibrator |
| CN108301787A (en) * | 2018-02-07 | 2018-07-20 | 中国石油集团西部钻探工程有限公司 | The reciprocating absorbing tool of external spring |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85203221U (en) * | 1985-08-06 | 1986-10-29 | 地质矿产部勘探技术研究所 | Self-exited all-hydrolic impactor |
| WO1988006673A1 (en) * | 1987-02-25 | 1988-09-07 | Salzgitter Maschinenbau Gmbh | System with a hydraulic lifting generator for earth drilling |
| GB9708294D0 (en) * | 1997-04-24 | 1997-06-18 | Anderson Charles A | Downhole apparatus |
| US6315063B1 (en) * | 1999-11-02 | 2001-11-13 | Leo A. Martini | Reciprocating rotary drilling motor |
| CN2479192Y (en) * | 2001-04-26 | 2002-02-27 | 胜利石油管理局黄河钻井总公司 | Annular bottom pressure equipment for well cementation |
| CN2866785Y (en) * | 2005-01-19 | 2007-02-07 | 李国民 | Rotary valve type hydraulic percussion device |
| CN2784570Y (en) * | 2005-04-14 | 2006-05-31 | 中国石化集团胜利石油管理局钻井工艺研究院 | Mechanical automatic vertical drilling tool |
| EP1951984A1 (en) * | 2005-11-16 | 2008-08-06 | Tracto-Technik GmbH | Hammer drilling device with a pneumatic reversing gear |
| US7607496B2 (en) * | 2007-03-05 | 2009-10-27 | Robert Charles Southard | Drilling apparatus and system for drilling wells |
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