CN103899250A - Device for improving oil and gas well drilling speed - Google Patents

Device for improving oil and gas well drilling speed Download PDF

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Publication number
CN103899250A
CN103899250A CN201410153115.4A CN201410153115A CN103899250A CN 103899250 A CN103899250 A CN 103899250A CN 201410153115 A CN201410153115 A CN 201410153115A CN 103899250 A CN103899250 A CN 103899250A
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China
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spring
cylinder
spline
diameter
mandrel
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CN201410153115.4A
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Chinese (zh)
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CN103899250B (en
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刘永旺
管志川
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中国石油大学(华东)
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Abstract

The invention belongs to the field of petroleum engineering and particularly relates to a device for improving the oil and gas well drilling speed. The device for improving the oil and gas well drilling speed comprises a mandrel body, a spline outer barrel, a spring protection barrel, a spring assembly, a spring lower plugging connector, a piston assembly and a pressurization assembly outer barrel, and is characterized in that the mandrel body is connected with the piston assembly in a threaded mode, the spline outer barrel, the spring protection barrel, the spring lower plugging connector and the pressurization assembly outer barrel are connected together through threads, and the spring assembly is arranged in the spring protection barrel. Energy for working of the device is provided by vibration of a drill stem and is increased along with the increase of the depth of a well, and the adverse effect of vibration is reduced by the working process of the device; by adopting the device, both the rock breaking efficiency and the well bottom cutting carrying effect are improved; the device is simple in structure and stable in performance, and other risks will not be caused by drilling operation when the device is used; the structure of the drill stem does not need changing, normal use of the device will not be affected by the types of drills, and therefore the device is wide in application range and convenient to popularize and use.

Description

A kind of device that improves oil gas well drilling speed

Technical field

The invention belongs to petroleum works field, particularly, relate to the broken rock drilling apparatus in down-hole in a kind of oil, Natural Gas Drilling Operation, relate in particular to a kind of device that improves oil gas well drilling speed.

Background technology

The slow problem of deep-well or hard formation bit speed is restricting the further exploitation of oil-gas resource always, oil worker has developed multiple downhole tool or device improves the efficiency of drilling well, comprises mud motor, down-hole rotary percussion drill by driving well tool, down-hole torsional impact drilling tool, downhole fluid jet flow generating apparatus, underground pulse efflux emitter etc.On-the-spot application result shows, these instruments all can play the effect that improves bit speed under certain condition.But, analyze and find, although the mechanism of these instruments speed-raising is different, there is common feature in these instruments, the energy source that instrument is brought into play its effect all derives from drilling well circulatory mediator, and the mechanism of speed-raising is comparatively single.Drilling practice draws: along with the increase of well depth, drilling well circulatory mediator presses consumption to increase.At profound well, even occur that circulatory mediator only can meet migrating rock cuttings with circulation and without the phenomenon of other energy.Well imagine, in this well, above-mentioned carried instrument or device duty can be greatly affected, and occur working most probably even affecting the possibility that drillng operation carries out.In addition, subterranean strata is different, wants to improve its rate of penetration, and the ways and means of employing there are differences, and same speed-raising mechanism is difficult to be applicable to multiple stratum.Therefore, seek downhole tool speed-raising energy and newly originate, and research and development to utilize new forms of energy and the collaborative symphyogenetic down-hole speed-raising of multiple speed-raising mechanism instrument be very significant.

Summary of the invention

In view of the foregoing defects the prior art has, the invention provides a kind of device that improves oil gas well drilling speed, this device can be introduced annular fluid increase shaft bottom drilling fluid displacement simultaneously, introduces the energy of drilling fluid energy-drillstring vibrations in addition, realize pulsing jet modulation, both can improve efficiency of breaking rock, can strengthen again shaft bottom and take rock effect, thereby improve rate of penetration.

For achieving the above object, the present invention adopts following proposal:

The device that improves oil gas well drilling speed, comprising: shutoff joint, piston assembly, supercharging assembly urceolus under mandrel body, spline urceolus, spring protection cylinder, main assemblage of spring, spring; Mandrel body is threaded with piston assembly; Under spline urceolus, spring protection cylinder, spring, shutoff joint, supercharging assembly urceolus are threaded connection; Main assemblage of spring is placed in spring protection cylinder.

With respect to prior art, the present invention has following beneficial effect:

1, the energy source of this device work is in drillstring vibrations, and energy increases along with the increase of well depth, and the course of work of device has reduced the damaging effect of vibration; The work of device does not form impact to the circulation of drilling fluid, even tool failures, drillng operation also can be proceeded;

2, device has been realized increase shaft bottom drilling fluid displacement, introduces annular fluid, introduces the energy beyond drilling fluid and realizes the object of pulsing jet modulation, can improve efficiency of breaking rock, can strengthen again shaft bottom and take rock effect;

3, simple, the stable performance of this apparatus structure, use procedure can not bring otherwise risk for drillng operation;

4, this device does not need to change the structure of drill string, irrelevant, applied widely with application bite type, convenient popularization and application.

Brief description of the drawings

Fig. 1 is the structural representation that improves the device of oil gas well drilling speed;

Fig. 2 is mandrel body structure figure;

Fig. 3 is supercharging assembly outer tube structure figure;

Fig. 4 is the A-A generalized section in Fig. 1;

Fig. 5 is the B-B generalized section in Fig. 1;

Fig. 6 is the C-C generalized section in Fig. 1;

Fig. 7 is the D-D generalized section in Fig. 1;

Fig. 8 is the E-E generalized section in Fig. 1;

Fig. 9 is piston body structure figure;

In figure: 1, mandrel body, 2, protecting against shock end cover, 3, spline chamber seal assembly, 4, spline urceolus, 5, oil filler point, 6, spacing ring, 7, spring protection cylinder, 8, main assemblage of spring, 9, spring cavity seal assembly, 10, annular fluid inlet one-way valve, 11, shutoff joint under spring, 12, supercharging liner packing, 13, piston body seal assembly, 14, piston assembly, 15, annular fluid outlet one way valve, 16, drilling tool endoporus one way valve, 17, supercharging assembly urceolus, 18, supercharging cylinder sleeve, 19, spline lubricates sap cavity, 20, spring lubricates sap cavity, 21, steam vent, 22, annular fluid entrance overcurrent hold-down head, 23, annular fluid entrance channel, 24, annular space drilling fluid storage chamber, 25, annular fluid outlet flow, 26 large discharge capacity fluid jet pulsation supercharging bunchers.

Detailed description of the invention

As shown in Figure 1, improve the device of oil gas well drilling speed, comprising: shutoff joint 11, piston assembly 14, supercharging assembly urceolus 17 under mandrel body 1, spline urceolus 4, spring protection cylinder 7, main assemblage of spring 8, spring; Mandrel body 1 is threaded with piston assembly 14; Under spline urceolus 4, spring protection cylinder 7, spring, shutoff joint 11, supercharging assembly urceolus 17 are threaded connection; Main assemblage of spring 8 is placed in spring protection cylinder 7.

As shown in Figure 2, described mandrel body 1 has circular hole along its axis, and circular hole is for drilling fluid overcurrent, and the top of mandrel body 1 is with drill collar button, for connecting top drilling assembly; Mandrel body 1 outside is followed successively by bottom by top: the face of cylinder 101 of linking closely, sliding sealing surface 102, spline body 103, spacing screw thread 104, the spring inner support face of cylinder 105, piston thread 106; Sliding sealing surface 102 is the chromium plating face of cylinder, and the diameter of sliding sealing surface 102 is less than the diameter on the face of cylinder 101 of linking closely; Spline body 103 tip diameters equate with sliding sealing surface 102 external diameters, and spline body 103 root diameters are greater than the large footpath of spacing screw thread 104; Spacing screw thread 104 paths are greater than the spring inner support face of cylinder 105 diameters; The spring inner support face of cylinder 105 diameters are greater than the large footpath of piston thread 106.

Described spline urceolus 4 is cylindrical shell, the top in spline urceolus 4 outsides is that end cap connects external screw thread, middle part is that the face of cylinder, bottom are that spring protection cylinder connects external screw thread, and the external diameter of spline urceolus 4 face of cylinder parts equates with the face of cylinder external diameter that links closely of mandrel body 1; The top of spline urceolus 4 inner sides is that righting cylinder, bottom are internal spline, and the internal diameter of righting cylinder is slightly larger than the external diameter of mandrel body 1 sliding sealing surface 102; Internal spline matches with the spline body 103 of mandrel body 1, and forms the lubricated sap cavity 19 of spline, and spline urceolus 4 can slide up and down with respect to mandrel body 1; Protecting against shock end cover 2 is installed on spline urceolus 4 tops, and the inner side, top of spline urceolus 4 is provided with spline chamber seal assembly 3, and seal assembly 3 flows into annular space for preventing the lubrication oil in the lubricated sap cavity 19 of spline; Spline urceolus 4 middle parts have oil filler point, and oil filler point, for to the lubricated interior injection lubricating fluid of sap cavity 19 of spline, is installed oil filler point plug 5 in oil filler point, for preventing that lubricating fluid from flowing out.

The external diameter of protecting against shock end cover 2 equates with the external diameter on the face of cylinder 101 of linking closely, and the top of protecting against shock end cover 2 has circular hole, and the slightly larger in diameter of this circular hole is in the external diameter of sliding sealing surface 102, and this circular hole and sliding sealing surface form the gap that sealing allows; The inside sidewalls of protecting against shock end cover 2 is provided with end cap screw thread, and protecting against shock end cover 2 is connected external screw thread by end cap screw thread and connects with the end cap of spline urceolus 4; Protecting against shock end cover 2 limits the scope of spline urceolus 4 up strokes, and bears spline urceolus 4 tops and the impact of the face of cylinder 101 lower end step surfaces that link closely.In addition, protecting against shock end cover 2 can be pressed in spline chamber seal assembly 3 in spline urceolus 4, prevents that the lubrication oil in the lubricated sap cavity 19 of spline from releasing spline chamber seal assembly 3.

Described spring protection cylinder 7 is cylindrical shell, and the external diameter of spring protection cylinder 7 equates with the external diameter on the face of cylinder 101 of linking closely; The top of spring protection cylinder 7 inner sides is that upper screw thread, middle part are that spring outer support face, bottom are lower screw thread; The upper screw thread of spring protection cylinder 7 connects external screw thread for the spring protection cylinder that connects spline urceolus 4, and lower screw thread is for shutoff joint 11 under linking springs, and the internal diameter of spring outer support face is greater than spring diameter 2-6mm; Spring protection cylinder 7 middle parts have steam vent, and when to the lubricated interior injection lubricating fluid of sap cavity 19 of spline, steam vent, for by the Bas Discharged of the lubricated sap cavity of spline 19 inside, is installed steam vent plug 21 in steam vent, and steam vent plug 21 flows out for preventing lubricating fluid.

Centered by spacing ring 6, be with female cylinder; spacing ring 6 external diameters are slightly less than the internal diameter of spring protection cylinder 7 spring outer support faces; spacing ring 6 external diameters are greater than the diameter of spline urceolus 4 spline basic circles (be spline tooth at the bottom of circle); the internal thread of spacing ring 6 matches with the spacing screw thread 104 of mandrel body 1; in trip-out process, for spacing ring 6 spline urceolus 4 provide power upwards, the bottom surface of spacing ring 6 is the upper supporting surface of main assemblage of spring 8.

Under described spring, shutoff joint 11 is cylindrical shell, and the top in outside is that spring protection cylinder connecting thread, middle part are that the joint face of cylinder, bottom are supercharging assembly urceolus connecting thread, and inner side is joint inner cylinder face, the slightly larger in diameter of joint inner cylinder face, in the external diameter on the mandrel body 1 spring inner support face of cylinder, is provided with seal groove on joint inner cylinder face, is provided with spring cavity seal assembly 9 in seal groove, the diameter on the joint face of cylinder and mandrel body 1 face of cylinder external diameter that links closely equates, be positioned at along the circumferential direction uniform four radial blind holes of same plane perpendicular to axis at middle part, the joint face of cylinder, blind hole depth is less than this section of wall thickness, blind hole is communicated with the bottom surface of shutoff joint 11 under spring by the annular fluid entrance channel 23 of corresponding setting vertically, annular fluid entrance overcurrent hold-down head 22 is limited in annular fluid inlet one-way valve 10 among blind hole, overcurrent hold-down head 22 is the circular orifice with diameter 2-3mm circular hole, annular fluid inlet one-way valve 10 allows the unidirectional annular space drilling fluid storage chamber 24 that enters of annular fluid, spring protection cylinder connecting thread is for linking springs protection cylinder 7, and supercharging assembly urceolus connecting thread is used for connecting supercharging assembly urceolus 17.The cavity that supercharging cylinder sleeve 18, supercharging assembly urceolus 17 and piston assembly 14 form is large discharge capacity fluid jet pulsation supercharging buncher 26.

Main assemblage of spring 8 is back-moving spring, and main assemblage of spring 8 is the combination of helical spring and liquid spring or the combination of disk spring and liquid spring.Main assemblage of spring 8 is arranged under spacing ring 6 lower planes and spring on shutoff joint 11 between plane, for installing overall reset.

As shown in Figure 8, described supercharging assembly urceolus 17 is cylindrical shell, and the external diameter of cylindrical shell and mandrel body 1 face of cylinder 101 external diameters that link closely equate; Supercharging assembly urceolus 17 inner sides are followed successively by from top to bottom: shutoff joint connecting thread 1701, cylinder sleeve righting face 1702, cylinder sleeve pressure-bearing surface 1703, the mobile hole 1704 of drilling fluid and drill bit junction button 1705 under spring.

Under spring, shutoff joint connecting thread 1701 is for shutoff joint 11 under linking springs; In cylinder sleeve righting face 1702, be provided with supercharging cylinder sleeve 18; Supercharging cylinder sleeve 18 is less than cylinder sleeve righting face 1702 internal diameters for external diameter, and internal diameter is slightly larger than the cylinder of piston assembly 14 external diameters, equates with the internal diameter of cylinder sleeve pressure-bearing surface 1703; Cylinder sleeve righting face 1702 provides radial support for supercharging cylinder sleeve, and the top of cylinder sleeve righting face 1702 has seal groove, and supercharging liner packing 12 is installed in seal groove; Step surface between cylinder sleeve righting face 1702 and cylinder sleeve pressure-bearing surface 1703 is used to supercharging cylinder sleeve that axial support is provided; Supercharging cylinder sleeve 18 inwall fine grindings, for reducing the frictional resistance between piston body seal assembly 13; Drill bit junction button 1705 is for connecting drill bit.

As shown in Figure 9, piston assembly 14, comprising: piston parent 141, annular fluid outlet one way valve 15, piston body seal assembly 13, drilling tool endoporus one way valve 16; Piston parent 141 is cylindrical shell, and piston parent 141 inner tip are with mandrel body connecting thread 1401, and mandrel body connecting thread 1401 is for connection-core axis body 1; Piston parent 141 bottoms are provided with one way valve installing hole 1402, for installing drill orate one way valve 16; Drilling tool endoporus one way valve 16 is for only allowing the drilling fluid valve body mobile to shaft bottom; Piston parent 141 outer upper ends external diameters are little, middle part external diameter is large, lower outer diameter is little; Little external diameter position, upper end is that upper button column face 1403, major diameter position, middle part are sealing righting face 1404; Upper button column face 1403 is for binding thread, and sealing righting face 1404 is provided with piston body seal assembly 13; The dirty space that provides of the above drilling medium of piston parent 141 is provided at piston parent 141 little external diameter positions, bottom; The annular fluid outlet flow 25 of piston parent 141 circumferential uniform up/down perforations, the lower end of annular fluid outlet flow 25 is provided with annular fluid outlet one way valve installing hole 1405, annular fluid outlet one way valve installing hole 1405 interior installation annular space fluid issuing one way valves 15; For controlling, drilling fluid in annular space drilling fluid storage chamber 24 is unidirectional enters large discharge capacity fluid jet pulsation supercharging buncher 26 to annular fluid outlet one way valve 15.

The device operating principle of above-mentioned raising oil gas well drilling speed is as follows:

Mandrel body 1, spacing ring 6, piston assembly 14 are threaded connection composition drillstring vibrations interlock assembly.The drill collar button on mandrel body 1 top is used for connecting top drilling tool; Spline body and the spline fitted of spline urceolus 4 inside at middle part are used for transmitting drilling well moment of torsion, and spacing ring 6 is threadedly connected on the spacing screw thread of mandrel body 1, limit the stroke of spline, and serve as the support of main assemblage of spring 8, are also used for the static assembly that shakes that holds in anti-shaft bottom to come off; Mandrel body 1 lower end connects piston assembly 14, and piston body seal assembly 13 is installed in the circumferential cell body of piston assembly 14, for separating annular space drilling fluid storage chamber 24 and large discharge capacity fluid jet pulsation supercharging buncher 26; The circumferential uniform multiple annular fluid outlet flow 25 of piston assembly 14, annular fluid outlet flow 25 bottoms are equipped with annular fluid outlet one way valve 15, can make annular fluid one direction enter large discharge capacity annular fluid jet fluctuation supercharging buncher 26; Piston assembly 14 bottoms are provided with drilling tool endoporus one way valve 16, enter large discharge capacity fluid jet pulsation supercharging buncher 26 for the drilling fluid one direction that limits ground pump and provide, and with annular fluid jet mixing, thereby produce large discharge capacity high-voltage pulse annular fluid jet.

Under protecting against shock end cover 2, spline chamber seal assembly 3, spline urceolus 4, oil filler point plug 5, steam vent plug 21, spring protection cylinder 7, spring, shutoff joint 11, spring cavity seal assembly 9, annular fluid inlet one-way valve 10, annular fluid entrance overcurrent hold-down head 24, supercharging cylinder sleeve 18, supercharging liner packing 12, supercharging assembly urceolus 17 are connected to form the static assembly that shakes that holds in shaft bottom.Protecting against shock end cover 2 is connected with spline urceolus 4 by screw thread, for the protection of spline chamber seal assembly 3, and bears and the impact of mandrel body 1 upper stage terrace; Spline chamber seal assembly 3 is installed in the seal groove of offering spline urceolus 4 upper ends, for separating the lubrication oil in the lubricated sap cavity 19 of annular space drilling fluid and spline; The top of spring protection cylinder 7 is connected with spline urceolus 4 lower ends by screw thread, and bottom is connected with shutoff joint 11 tops under spring by screw thread, for the protection of the main assemblage of spring 8 in cylinder; The seal groove that under spring, open on shutoff joint 11 endoporus tops is equipped with spring cavity seal assembly, for separating lubricating fluid in the lubricated sap cavity 19 of spline and the fluid in annular space drilling fluid storage chamber 24; Under spring, shutoff joint 11 is axially installed multiple annular fluid entrance overcurrent hold-down heads 22, annular fluid inlet one-way valve 10 is equipped with in annular fluid entrance overcurrent hold-down head 22 inside, enters in annular space drilling fluid storage chamber 24 for the drilling fluid one direction with landwaste annular fluid of controlling in annular space; Annular fluid entrance channel 23 is distributed between the annular fluid inlet one-way valve 10 and annular space drilling fluid storage chamber 24 of shutoff joint 11 under spring vertically; Under spring, shutoff joint 11 bottoms are connected with supercharging assembly urceolus 17 by screw thread, supercharging cylinder sleeve 18 is equipped with in supercharging assembly urceolus 17 inside, between supercharging assembly urceolus 17 and supercharging cylinder sleeve 18, supercharging liner packing 12 is housed, for separating the fluid in large discharge capacity fluid jet pulsation supercharging buncher 26 and bore hole annulus; Buckle with drill bit supercharging assembly urceolus 17 lower ends, for connecting drill bit.

In drilling process, because touching of drill string and the borehole wall rubbed, drill bit causes method of longitudinal vibration of drilling string beating of shaft bottom etc.In the time of drillstring vibrations, drillstring vibrations interlock assembly produces relative motion with respect to the static assembly that shakes that holds in shaft bottom, and this movement velocity presents cyclically-varying, in the time of downward vibration, after speed of related movement accelerates to a certain speed by 0, Speed Reduction is until return 0, vibration end downwards; When upwards vibrating while starting, speed of related movement accelerates to Speed Reduction after reciprocal a certain speed until return 0 by 0, then starts downward vibration, so goes round and begins again.When drill string vibrates downwards, bottom hole assemblies drives the static assembly that shakes that holds in the relative shaft bottom of drillstring vibrations interlock assembly to move downward, when speed of related movement exceedes drilling fluid crossing when Flow Velocity in supercharging cylinder sleeve 18 interior cross sections, annular fluid exports one way valve 15 and drilling tool endoporus one way valve 16 is closed, large discharge capacity fluid jet pulsation supercharging buncher 26 interior fluid pressures raise, and form high pressure positive pulse annular fluid jet on drill bit on the plain nozzle of installing; Meanwhile, annular space carries the drilling fluid of granule landwaste through the filtration of annular fluid entrance overcurrent hold-down head 22 sieve apertures, flow through annular fluid inlet one-way valve 10, annular fluid entrance channel 23 enters into annular space drilling fluid storage chamber 24, while upwards vibration for drill string, annular fluid enters large discharge capacity fluid jet pulsation supercharging buncher 26 preparation is provided.When drill string upwards vibrates, bottom hole assemblies drives the static assembly that shakes that holds in the relative shaft bottom of drillstring vibrations interlock assembly to move upward, annular fluid outlet one way valve 15 and drilling tool endoporus one way valve 16 are opened, the drilling fluid of drilling tool hollow normally flows to shaft bottom, bring into play its effect, meanwhile, annular fluid inlet one-way valve 10 is closed, annular fluid outlet one way valve 15 is opened, carry the drilling fluid of granule landwaste through annular fluid outlet flow 25, annular fluid outlet one way valve 15 enters into large discharge capacity annular space jet fluctuation supercharging buncher 26, wait for that drill string forms large discharge capacity high pressure positive pulse fluid jet downwards again while vibration.So go round and begin again, the large discharge capacity high pressure positive pulse jet that device utilization produces improves efficiency of breaking rock in shaft bottom, strengthens shaft bottom and takes rock effect, thereby improve rate of penetration.

Claims (10)

1. a device that improves oil gas well drilling speed, comprising: shutoff joint, piston assembly, supercharging assembly urceolus under mandrel body, spline urceolus, spring protection cylinder, main assemblage of spring, spring; It is characterized in that: mandrel body is threaded with piston assembly; Under spline urceolus, spring protection cylinder, spring, shutoff joint, supercharging assembly urceolus are threaded connection; Main assemblage of spring is placed in spring protection cylinder.
2. the device of raising oil gas well drilling speed according to claim 1, it is characterized in that, described mandrel body has circular hole along its axis, the top of circle mandrel body is with drill collar button, and mandrel external body is followed successively by bottom by top: the face of cylinder of linking closely, sliding sealing surface, spline body, spacing screw thread, the spring inner support face of cylinder, piston thread; Sliding sealing surface is the chromium plating face of cylinder, and the diameter of sliding sealing surface is less than the diameter on the face of cylinder of linking closely; Spline body tip diameter equates with sliding sealing surface external diameter, and spline body root diameter is greater than spacing Major Diam; Spacing screw thread path is greater than spring inner support face of cylinder diameter; Spring inner support face of cylinder diameter is greater than the large footpath of piston thread.
3. according to the device of the raising oil gas well drilling speed described in claim 1-2, it is characterized in that, described spline urceolus is cylindrical shell, the top in spline urceolus outside is that end cap connects external screw thread, middle part is that the face of cylinder, bottom are that spring protection cylinder connects external screw thread, and the external diameter of spline urceolus face of cylinder part equates with the face of cylinder external diameter that links closely of mandrel body; The top of spline urceolus inner side is that righting cylinder, bottom are internal spline, and the internal diameter of righting cylinder is slightly larger than the external diameter of mandrel body sliding sealing surface; Internal spline matches with the spline body of mandrel body, and forms the lubricated sap cavity of spline; Protecting against shock end cover is installed on spline urceolus top, and the inner side, top of spline urceolus is provided with spline chamber seal assembly; Spline urceolus middle part has oil filler point, and oil filler point plug is installed in oil filler point.
4. according to the device of the raising oil gas well drilling speed described in claim 1-3, it is characterized in that, the external diameter of protecting against shock end cover equates with the external diameter on the face of cylinder of linking closely, the top of protecting against shock end cover has circular hole, the slightly larger in diameter of this circular hole is in the external diameter of sliding sealing surface, and this circular hole and sliding sealing surface form the gap that sealing allows; The inside sidewalls of protecting against shock end cover is provided with end cap screw thread, and protecting against shock end cover is connected external screw thread by end cap screw thread and connects with the end cap of spline urceolus.
5. according to the device of the raising oil gas well drilling speed described in claim 1-4, it is characterized in that, described spring protection cylinder is cylindrical shell, and the external diameter of spring protection cylinder equates with the external diameter on the face of cylinder of linking closely; The top of spring protection cylinder inner side is that upper screw thread, middle part are that spring outer support face, bottom are lower screw thread; The internal diameter of spring outer support face is greater than spring diameter 2-6mm; Spring protection cylinder middle part has steam vent, and steam vent plug is installed in steam vent.
6. according to the device of the raising oil gas well drilling speed described in claim 1-5; it is characterized in that; centered by spacing ring, be with female cylinder; spacing ring external diameter is slightly less than the internal diameter of spring protection cylinder spring outer support face; spacing ring external diameter is greater than spline urceolus spline base diameter of a circle, and the internal thread of spacing ring matches with the spacing screw thread of mandrel body.
7. according to the device of the raising oil gas well drilling speed described in claim 1-6, it is characterized in that, under described spring, shutoff joint is cylindrical shell, the top in outside is that spring protection cylinder connecting thread, middle part are that the joint face of cylinder, bottom are supercharging assembly urceolus connecting thread, and inner side is joint inner cylinder face, the slightly larger in diameter of joint inner cylinder face, in the external diameter on the mandrel body spring inner support face of cylinder, is provided with seal groove on joint inner cylinder face, is provided with spring cavity seal assembly in seal groove, the diameter on the joint face of cylinder and the mandrel body face of cylinder external diameter that links closely equates, be positioned at along the circumferential direction uniform four radial blind holes of same plane perpendicular to axis at middle part, the joint face of cylinder, blind hole depth is less than this section of wall thickness, blind hole is communicated with the bottom surface of shutoff joint under spring by the annular fluid entrance channel of corresponding setting vertically, annular fluid entrance overcurrent hold-down head is limited in annular fluid inlet one-way valve among blind hole, overcurrent hold-down head is the circular orifice with diameter 2-3mm circular hole, annular fluid inlet one-way valve allows the unidirectional annular space drilling fluid storage chamber that enters of annular fluid.
8. according to the device of the raising oil gas well drilling speed described in claim 1-7, it is characterized in that, main assemblage of spring is the combination of helical spring and liquid spring or the combination of disk spring and liquid spring; Main assemblage of spring is arranged under spacing ring lower plane and spring on shutoff joint between plane.
9. according to the device of the raising oil gas well drilling speed described in claim 1-8, it is characterized in that, described supercharging assembly urceolus is cylindrical shell, and the external diameter of cylindrical shell and the mandrel body face of cylinder external diameter that links closely equates; Supercharging assembly urceolus inner side is followed successively by from top to bottom: shutoff joint connecting thread, cylinder sleeve righting face, cylinder sleeve pressure-bearing surface, the mobile hole of drilling fluid and drill bit junction button under spring; Under spring, shutoff joint connecting thread is for shutoff joint under linking springs; In cylinder sleeve righting face, be provided with supercharging cylinder sleeve; Supercharging cylinder sleeve is that external diameter is less than cylinder sleeve righting face internal diameter, and internal diameter is slightly larger than the cylinder of piston assembly external diameter, equates with the internal diameter of cylinder sleeve pressure-bearing surface; The top of cylinder sleeve righting face has seal groove, and supercharging liner packing is installed in seal groove; Supercharging inboard wall of cylinder liner fine grinding.
10. according to the device of the raising oil gas well drilling speed described in claim 1-9, it is characterized in that piston assembly comprises: piston parent, annular fluid outlet one way valve, piston body seal assembly, drilling tool endoporus one way valve; Piston parent is cylindrical shell, and piston parent inner tip is with mandrel body connecting thread; Piston parent bottom is provided with one way valve installing hole, installing drill orate one way valve in one way valve installing hole; Piston parent outer upper ends external diameter is little, middle part external diameter is large, lower outer diameter is little; Little external diameter position, upper end is that upper button column face, major diameter position, middle part are sealing righting face; Sealing righting face is provided with piston body seal assembly; The annular fluid outlet flow of the circumferential uniform up/down perforation of piston parent, the lower end of annular fluid outlet flow is provided with annular fluid outlet one way valve installing hole, in annular fluid outlet one way valve installing hole, annular space fluid issuing one way valve is installed.
CN201410153115.4A 2014-04-16 2014-04-16 A kind of device improving oil gas well drilling speed CN103899250B (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104265173A (en) * 2014-08-11 2015-01-07 中国石油大学(华东) Vibration reducing and speed increasing device
CN104314472A (en) * 2014-10-20 2015-01-28 江苏航天鸿鹏数控机械有限公司 Percussion and vibration device of screw drill
CN104314471A (en) * 2014-09-29 2015-01-28 中国石油大学(华东) Underground torsion impact stimulation device based on drill string vibration
CN104847259A (en) * 2015-04-13 2015-08-19 刘永旺 Rotating impact acceleration device and method of power drilling tool
CN106930699A (en) * 2017-02-22 2017-07-07 长江大学 Circumference is to vibratory tool
CN107542419A (en) * 2017-09-26 2018-01-05 中国石油集团渤海钻探工程有限公司 Through formula fluid power impulse oscillation instrument
CN108798501A (en) * 2018-05-08 2018-11-13 中国石油大学(华东) Axial jet drilling speed-raising tool
CN109555492A (en) * 2018-11-22 2019-04-02 中国石油大学(华东) Shaft bottom annular space drilling fluid dropping equipment and method based on drillstring vibrations

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4194582A (en) * 1978-06-28 1980-03-25 Christensen, Inc. Double acting shock absorbers for drill strings
CN102704857A (en) * 2012-06-21 2012-10-03 中国石油大学(华东) Underground supercharging and accelerating system
CN203175399U (en) * 2013-03-22 2013-09-04 中国石油大学(华东) Underground full-displacement pressurizing device
CN103452481A (en) * 2013-09-05 2013-12-18 常州大学 Downhole booster

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4194582A (en) * 1978-06-28 1980-03-25 Christensen, Inc. Double acting shock absorbers for drill strings
US4194582B1 (en) * 1978-06-28 1987-05-05
CN102704857A (en) * 2012-06-21 2012-10-03 中国石油大学(华东) Underground supercharging and accelerating system
CN203175399U (en) * 2013-03-22 2013-09-04 中国石油大学(华东) Underground full-displacement pressurizing device
CN103452481A (en) * 2013-09-05 2013-12-18 常州大学 Downhole booster

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104265173A (en) * 2014-08-11 2015-01-07 中国石油大学(华东) Vibration reducing and speed increasing device
CN104265173B (en) * 2014-08-11 2015-06-24 中国石油大学(华东) Vibration reducing and speed increasing device
CN104314471A (en) * 2014-09-29 2015-01-28 中国石油大学(华东) Underground torsion impact stimulation device based on drill string vibration
CN104314471B (en) * 2014-09-29 2015-07-08 中国石油大学(华东) Underground torsion impact stimulation device based on drill string vibration
CN104314472A (en) * 2014-10-20 2015-01-28 江苏航天鸿鹏数控机械有限公司 Percussion and vibration device of screw drill
CN104847259A (en) * 2015-04-13 2015-08-19 刘永旺 Rotating impact acceleration device and method of power drilling tool
CN104847259B (en) * 2015-04-13 2017-03-15 中国石油大学(华东) A kind of power drilling tool rotary impact speed enhancing apparatus
CN106930699A (en) * 2017-02-22 2017-07-07 长江大学 Circumference is to vibratory tool
CN107542419A (en) * 2017-09-26 2018-01-05 中国石油集团渤海钻探工程有限公司 Through formula fluid power impulse oscillation instrument
CN107542419B (en) * 2017-09-26 2019-10-08 中国石油集团渤海钻探工程有限公司 The through fluid power impulse oscillation tool in center
CN108798501A (en) * 2018-05-08 2018-11-13 中国石油大学(华东) Axial jet drilling speed-raising tool
CN109555492A (en) * 2018-11-22 2019-04-02 中国石油大学(华东) Shaft bottom annular space drilling fluid dropping equipment and method based on drillstring vibrations
WO2019238139A1 (en) * 2018-11-22 2019-12-19 中国石油大学(华东) Device and method for reducing annulus drilling fluid pressure at well bottoms

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