CN204024463U - A kind of double acting being applicable to gas drilling mud motor is calmed the anger power sub - Google Patents
A kind of double acting being applicable to gas drilling mud motor is calmed the anger power sub Download PDFInfo
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- CN204024463U CN204024463U CN201420486756.7U CN201420486756U CN204024463U CN 204024463 U CN204024463 U CN 204024463U CN 201420486756 U CN201420486756 U CN 201420486756U CN 204024463 U CN204024463 U CN 204024463U
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- 238000005553 drilling Methods 0.000 title claims abstract description 47
- 238000009826 distribution Methods 0.000 claims abstract description 45
- 238000007789 sealing Methods 0.000 claims description 37
- 230000037250 Clearance Effects 0.000 claims description 9
- 230000035512 clearance Effects 0.000 claims description 9
- 206010022000 Influenza Diseases 0.000 claims description 6
- 210000000981 Epithelium Anatomy 0.000 claims description 5
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- 210000002445 Nipples Anatomy 0.000 abstract description 24
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- 239000003921 oil Substances 0.000 description 58
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- 239000004519 grease Substances 0.000 description 20
- 230000005540 biological transmission Effects 0.000 description 17
- 239000010720 hydraulic oil Substances 0.000 description 12
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- 229910045601 alloy Inorganic materials 0.000 description 2
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 2
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Abstract
The utility model discloses a kind of double acting being applicable to gas drilling mud motor to calm the anger power sub, comprise top connection, non retern valve, valve seat, valve plate, shunting plug, air rammer, outer shell, inner casing, distribution cylinder, exhaust joint and connecting rod, wherein distribution cylinder adopts and is threaded on air rammer, distribution cylinder bottom is processed with air distribution hole, distribution cylinder is threaded with connecting rod and by the top cover of double-action hydraulic power sub, bottom centre bore, exhaust joint upper end is connected with outer shell by screw thread, lower end and double-action hydraulic power sub are threaded connection.Gas energy can be changed into the reciprocal high frequency motion of air rammer by the utility model, achieve gas energy to mechanical conversion of energy, the mechanical energy of air rammer passes to hydraulic plunger by connecting rod, achieve its reciprocating motion in double-action hydraulic power sub, pipe nipple design is independent, profile and entire drill tool are consistent, and install, dismantle, keep in repair and supporting convenience, interchangeability is strong.
Description
Technical field
The utility model relates to oil, gas drilling equipment technology field, and specifically, relate to a kind of double acting being applicable to gas drilling mud motor and to calm the anger power sub, it is adapted at using in gas horizontal well drilling, directional well and extended reach well.
Background technology
Current domestic Exploration of Oil And Gas difficulty is increasing; target has turned to low yield, low pressure, the difficult producing oil gas reservoir such as hypotonic; wherein comprise a large amount of water-sensitive, salt is quick, alkali is quick and Clastic Stratum of Country Rocks; sharply reduce with permeability after drilling filtrate effect, be difficult to realize reservoir protection or find new gas reservoir by conventional drilling method.Practice at home and abroad experience shows; utilize air drilling advantageously in discovery and reservoir protec-tion; and utilize horizontal well can increase Area of a well; effective raising well yield; production capacity; extend the individual well production time, also can reduce plough requisition and environment pollution, there is significant economic benefit.The combination of horizontal well and air drilling can liberate oil-gas Layer to greatest extent, and for new footpath is opened up in discovery and the oil-gas reservoir of reasonable development low pressure and low permeability, but both combinations also lack a key: a kind of mud motor being specifically designed to gas drilling.Mud motor at present for gas drilling has air screw and self-rotating air hammer.Air screw is improved by traditional mud helicoid hydraulic motor, and itself has hard mechanical property because drilling fluid is incompressible, exactly because this advantage just makes it can be widely used in orientation and horizontal drilling.Although but air screw takes a series of structure optimization and improvement for the compressibility of gas, basic meet with foam, inflate under balance pressure drilling into medium, but when circulatory mediator be pure gas and atomized liquid time remain and directly act on screw motor with gas, actual volume flow and pressure are at any time in change, the weakening degree of compressibilty to outputting power is still huge, and the moment of torsion of output and rotary speed unstabilization determine nature cannot be applied to gas brill directional well, horizontal well.Self-rotating air hammer adopts rotation, impact mode breaks rock, and gas not only will produce ballistic work and bore bit also will be driven to rotate, and needs very high pressure could realize effectively creeping into, and during acting, operating mode is severe, and the entire drill tool life-span is short, and practical is poor.Owing to lacking a kind of effective mud motor, cause gas drilling that the strength of ground installation can only be relied at present to drive drill string rotating, this mode often can only use at the horizontal segment that straight well section, steady tilted section and length are less, and at inclination section and long horizontal sections, drill string cannot rotate.Usual way adopts gas drilling speed-raising in straight well section and steady tilted section, control leakage; then being converted to mud at inclination section and the larger horizontal segment of length adopts usual manner to creep into; not only add workload and difficulty of construction; do not reach and utilize gas drilling to find and protect the object of reservoir, significantly limit development and the application of air drilling yet.
Publication number is CN2893125, publication date is that the Chinese patent literature on April 25th, 2007 discloses a kind of helicoid hydraulic motor for gas, foam drilling, it comprises gas, foam motor, sealing universal drive shaft and seal transmission shaft, and gas, foam motor, sealing universal drive shaft, seal transmission shaft connect successively.This motor has all been done to design targetedly in heat conduction and sealing, motor turns/stator head number comparatively conventional motor be large, inertia force when can reduce rotating speed (40 ~ 100r/min) and reduce rotor motion; It is larger than traditional MTR that motor turns discharge capacity, meet take rock while reduce motor starting and operating pressure drop to a certain extent.
Practice shows, substantially can meet with foam although this based on the optimization of Conventional mud helicoid hydraulic motor, the mud motor that improves, inflate under balance pressure drilling into medium, but when circulatory mediator be pure gas and atomized liquid time cause exporting by the real gas instability of flow of screw motor due to gas compression, moment of torsion and the rotating speed of output are also unstable, thus site operation requirement cannot be met, the mud motor problem of gas horizontal well drilling, directional well and extended reach well is not still solved very well.
Utility model content
The utility model is intended to for the defect existing for above-mentioned prior art and deficiency, a kind of double acting being applicable to gas drilling mud motor is provided to calm the anger power sub, gas energy can be changed into the reciprocal high frequency motion of air rammer by the utility model, achieve gas energy to mechanical conversion of energy, the mechanical energy of air rammer passes to hydraulic plunger by connecting rod, achieve its reciprocating motion in double-action hydraulic power sub, pipe nipple design is independent, profile and entire drill tool are consistent, install, dismantle, keep in repair and supporting convenience, interchangeability is strong.
The utility model realizes by adopting following technical proposals:
The double acting being applicable to gas drilling mud motor is calmed the anger a power sub, it is characterized in that: comprise top connection, non retern valve, valve seat, sealing mat a, valve plate, shunting plug, air rammer, outer shell, inner casing, distribution cylinder, exhaust joint and connecting rod; One end of top connection is threaded with drilling assembly, and the other end is threaded with outer shell; Valve seat is positioned at top connection lower end and valve plate upper end by step; Valve base center hole is provided with non retern valve, and sealing mat a is arranged between valve seat and valve plate; Valve plate is positioned at outer cylinder interior by key, and shunting plug is arranged on the centre bore of valve plate; Inner casing is processed with the axial air drain in some roads, groove is processed with radial air drain, inner casing upper and lower end is positioned at valve plate lower end and outer cylinder interior respectively by step; Air rammer two ends are symmetrically distributed with upper and lower two groups of axial air flues, and epithelium healing leads to front air chamber, and downtake leads to rear gas chamber, and are processed with at the abutting end of upper and lower two groups of axial air flues the radial air drain connected with outside piston cylinder; Distribution cylinder adopts and is threaded on the central row air flue inwall of air rammer, and distribution cylinder bottom is processed with upper and lower two assembly pores, and distribution cylinder by exhaust joint centre bore, and forms clearance seal face with exhaust joint; Connecting rod is threaded with distribution cylinder by the top cover of double-action hydraulic power sub, bottom centre bore, and forms clearance seal face with the top cover of double-action hydraulic power sub and bottom; Exhaust joint upper end is connected with outer shell by screw thread, and lower end and double-action hydraulic power sub are threaded connection, and its upper surface is processed with a centre bore and passes through for distribution cylinder, and forms clearance seal face with distribution cylinder.
Front air chamber is formed by valve plate, annular space between air rammer and inner casing.
Rear gas chamber is formed by air rammer, annular space between outer shell and exhaust joint.
Exhaust chamber is formed by exhaust joint, annular space between double-action hydraulic power sub top cover and connecting rod.
Compared with prior art, the beneficial effect that reaches of the utility model is as follows:
Double acting of the present utility model calm the anger power sub utilize gas as power source drive air rammer acting, gas energy is changed into the reciprocal high frequency motion of air rammer, achieve gas energy to mechanical conversion of energy, the mechanical energy of air rammer passes to hydraulic plunger by connecting rod, to realize its reciprocating motion in double-action hydraulic power sub, pipe nipple design is independent, and profile and entire drill tool are consistent, install, dismantle, keep in repair and supporting convenience, interchangeability is strong.
Accompanying drawing explanation
Below in conjunction with specification drawings and specific embodiments, the utility model is described in further detail, wherein:
Fig. 1 is the overall structure schematic diagram of mud motor;
Fig. 2 is that the utility model double acting is calmed the anger the structural representation of power sub;
A-A sectional drawing in Fig. 2 a Fig. 2;
Fig. 3 is the structural representation of the utility model double-action hydraulic power sub;
Fig. 3 a is B-B sectional drawing in Fig. 3;
Fig. 3 b is one way valve circumference distribution schematic diagram;
C-C sectional drawing in Fig. 3 c Fig. 3;
Fig. 3 d is the sectional view of sealing mat b and sealing mat c;
Fig. 4 is the structural representation that the utility model air tight cycle liquid drives motor;
Fig. 4 a is D-D sectional drawing in Fig. 4;
Fig. 4 b is E-E sectional drawing in Fig. 4;
Fig. 4 c is sealing mat e and sealing mat f sectional view;
Fig. 5 is the structural representation of the utility model every liquid exhaust-driven pipe nipple;
Fig. 5 a is F-F sectional drawing in Fig. 5.
Mark in figure:
1-top connection; 2-non retern valve; 3-valve seat; 4-sealing mat a; 5-valve plate; 6-shunting plug; Air chamber before 7-; 8-air rammer; 9-outer shell; 10-inner casing; 11-piston epithelium healing; The axial air drain of 12-; The radial air drain of 13-; 14-piston radial air drain; 15-piston downtake; 16-rear gas chamber; 17-distribution cylinder; The upper air distribution hole of 18-; Air distribution hole under 19-; 20-exhaust joint; 21-connecting rod; 22-exhaust chamber; 23-top cover; 24-rectangle one way valve; 24a-front grease chamber pump fuel tap; 24b-front grease chamber oil return valve; Pump fuel tap in grease chamber's after 24c-; Grease chamber's oil return valve after 24d-; 25-plug; 26-discharge chamber; 27-top cover shell; 28-sealing mat b; 29-hydraulic plunger; The front grease chamber of 30-; Grease chamber after 31-; 32-oil cylinder; 33-oil pumping chamber; 34-cylinder shell; 35-sealing mat c; 36-bottom shell; 37-bottom; 38-carries joint hydrophthalmia; 39-sealing mat d; The anti-lost locknut of 40-; The anti-lost bulge loop of 41-; 42-carries joint; 43-carries joint shell; 44-sealing mat e; The anti-lost connecting rod of 45-; 46-stator case; 47-stator rubber lining; 48-motor case; 49-rotor; 50-sealing mat f; 51-universal drive shaft assembly; 52-spill port; 53-oil leak hole; 54-draining plug screw; 55-universal drive shaft assembly shell; 56-universal drive shaft assembly shell; The dynamic cover of the upper TC of 57-; The quiet cover of the upper TC of 58-; 59-shaft sealer a; 60-is vented spacer; 61-steam vent; 62-rotary drive pipe nipple steam vent; 63-spacer briquetting; 64-shaft sealer b; 65-uploads gland; 66-upper limit step; 67-rotary drive pipe nipple; 68-rotary drive pipe nipple hydrophthalmia; 69-stabilizer; 70-goes here and there bearing; 71-lower limit step; 72-transmission shaft shell; 73-shaft sealer c; Pressure transmission cover under 74-; 75-tool joint; 76-oil back chamber; 77-back oil road; 78-valve seat; 79-spool; 80-spring; 81-floor.
Detailed description of the invention
Embodiment 1
With reference to Figure of description, the utility model discloses a kind of double acting to calm the anger power sub, comprise top connection 1, non retern valve 2, valve seat 3, sealing mat a4, valve plate 5, shunting plug 6, air rammer 8, outer shell 9, inner casing 10, distribution cylinder 17, exhaust joint 20 and connecting rod 21.One end of top connection 1 is threaded with drilling assembly, and the other end is threaded with outer shell 9; Valve seat 3 is positioned at top connection 1 lower end and valve plate 5 upper end by step; Valve seat 3 centre bore is provided with non retern valve 2, and sealing mat a4 is arranged between valve seat 3 and valve plate 5; It is inner that valve plate 5 is positioned at outer shell 9 by key, and shunting plug 6 is arranged on the centre bore of valve plate 5; Inner casing 10 is processed with the axial air drain 12 in some roads, groove is processed with radial air drain 13, inner casing 10 upper and lower end is positioned at valve plate 5 lower end respectively by step and outer shell 9 is inner; Air rammer 8 two ends are symmetrically distributed with upper and lower two groups of axial air flues, and epithelium healing 11 leads to front air chamber 7, and downtake 15 leads to rear gas chamber 16, and are processed with at the abutting end of upper and lower two groups of axial air flues the radial air drain 14 connected with outside piston cylinder; Distribution cylinder 17 adopts and is threaded on the central row air flue inwall of air rammer 8, and distribution cylinder 17 bottom is processed with upper and lower two assembly pores (18,19), and distribution cylinder 17 by exhaust joint 20 centre bore, and forms clearance seal face with exhaust joint; Connecting rod 21 is threaded with distribution cylinder 17 by the top cover 23 of double-action hydraulic power sub, bottom 37 centre bore, and forms clearance seal face with the top cover 23 of double-action hydraulic power sub and bottom 37; Exhaust joint 20 upper end is connected with outer shell 9 by screw thread, and lower end and double-action hydraulic power sub are threaded connection, and its upper surface is processed with a centre bore and passes through for distribution cylinder 17, and forms clearance seal face with distribution cylinder; Front air chamber 7 is formed by valve plate 5, annular space between air rammer 8 and inner casing 10.Rear gas chamber 16 is formed by air rammer 8, annular space between outer shell 9 and exhaust joint 20.Exhaust chamber 22 is formed by exhaust joint 20, annular space between double-action hydraulic power sub top cover 23 and connecting rod 21.
Embodiment 2
With reference to Figure of description, the utility model discloses a kind of double-action hydraulic power sub being applicable to gas drilling mud motor, comprise top cover 23, oil cylinder 32, cylinder shell 34, bottom 37, rectangle one way valve 24, plug 25, hydraulic plunger 29, floor 81, sealing mat b28 and sealing mat c35.Double-action hydraulic power sub is provided with discharge chamber 26, oil pumping chamber 33 and oil back chamber 76 3 passages in the circumferential; Discharge chamber 26 is formed by top cover 23, top cover shell 27, oil cylinder 32, cylinder shell 34, bottom 37, bottom shell 36 and floor 81, and import is communicated with exhaust chamber 22, exports the discharge chamber 26 driving motor with air tight cycle liquid and is communicated with; Oil pumping chamber 33 is formed by oil cylinder 32, cylinder shell 34, bottom 37, bottom shell 36 and floor 81, import is connected with the oil outlet end of front grease chamber pump fuel tap 24a, rear grease chamber pump fuel tap 24c, export the carrying joint hydrophthalmia 38 driving motor with air tight cycle liquid to be communicated with, top is sealed by top cover 23; Oil back chamber 76 is formed by oil cylinder 32, cylinder shell 34, bottom 37, bottom shell 36 and floor 81, and the spill port 52 that import and air tight cycle liquid drive motor is communicated with, and exports and is connected with the oil inlet end of front grease chamber oil return valve 24b, rear grease chamber oil return valve 24d; On top cover 23 respective pump oil pocket 33 and oil back chamber 76 position on two rectangle one way valves (24c and 24d) are installed, one end is communicated with oil back chamber 76 with oil pumping chamber 33 respectively, and one end is communicated with front grease chamber 30; On bottom 37 respective pump oil pocket 33 and oil back chamber 76 position on two rectangle one way valves (24c and 24d) are installed, one end is communicated with oil back chamber 76 with oil pumping chamber 33 respectively, and one end is communicated with rear grease chamber 31; Hydraulic plunger 29 is connected by key with connecting rod 21, is assemblied in oil cylinder 32; Top cover 23, oil cylinder 32 are connected successively with the screw thread of bottom 37 by processing on top cover shell 27, cylinder shell 34 and bottom shell 36, are sealed after each several part chamber aligns by sealing mat; Sealing mat b28 is arranged between top cover 23 and oil cylinder 32, and sealing mat c35 is arranged between bottom 37 and oil cylinder 32.Front grease chamber 30 is formed by top cover 23, hydraulic plunger 29, annular space between oil cylinder 32 and connecting rod 21.Rear grease chamber 31 is formed by bottom 37, hydraulic plunger 29, annular space between oil cylinder 32 and connecting rod 21.
Embodiment 3
With reference to Figure of description, the utility model discloses a kind of air tight cycle liquid being applicable to gas drilling mud motor and drive motor, comprise carrying joint 42, carrying joint shell 43, anti-lost locknut 40, anti-lost connecting rod 45, rotor 49, stator case 46, stator rubber lining 47, motor case 48, universal drive shaft assembly 51, universal drive shaft assembly shell 55, universal drive shaft assembly shell 56, spill port 52, oil leak hole 53, draining plug screw 54, sealing mat e44 and sealing mat f50.Double-action hydraulic power sub is provided with discharge chamber 26 and oil back chamber 76 two passages in the circumferential; Discharge chamber 26 is formed by carrying joint 42, carrying joint shell 43, stator case 46, motor case 48, universal drive shaft assembly shell 55, universal drive shaft assembly shell 56 and floor 81, import is communicated with the discharge chamber 26 of double-action hydraulic power sub, and outlet is communicated with steam vent 61; Oil back chamber 76 is formed by carrying joint 42, carrying joint shell 43, stator case 46, motor case 48, universal drive shaft assembly shell 55, universal drive shaft assembly shell 56 and floor 81, import is communicated with spill port 52, and outlet is communicated with the oil back chamber 76 of double-action hydraulic power sub; Carrying joint 42 upper end is threaded with the bottom 37 of double-action hydraulic power sub, and lower end is threaded with stator case 46; Carrying joint 42, stator case 46, universal shaft housing 55 are connected from top to bottom successively by screw thread; Stator rubber lining 47 thermal-adhering is on stator case 46 inwall; Anti-lost locknut 40, anti-lost connecting rod 45, rotor 49, universal drive shaft assembly 51 are connected from top to bottom successively by screw thread, are assemblied in stator rubber lining 47; Universal drive shaft assembly shell 55 is processed with spill port 52, on universal drive shaft assembly shell 56, corresponding oil back chamber 76 position is processed with oil leak hole 53, is sealed by draining plug screw 54; Carrying joint 42, stator case 46 are connected by screw thread successively with universal drive shaft assembly shell 55, are sealed after each several part chamber aligns by sealing mat; Sealing mat e44 is arranged between carrying joint shell 43 and motor case 48, and sealing mat f50 is arranged between motor case 48 and universal drive shaft assembly shell 56.
Embodiment 4
With reference to Figure of description, the utility model discloses a kind of be applicable to gas drilling mud motor every liquid exhaust-driven pipe nipple, comprise TC move cover 57, the quiet cover 58 of upper TC, shaft sealer a59, exhaust spacer 60, spacer briquetting 63, shaft sealer b64, upload gland 65, rotary drive pipe nipple 67, stabilizer 69, string bearing 70, transmission shaft shell 72, shaft sealer c73 and lower pressure transmission cover 74.Rotary drive pipe nipple 67 is processed with upper and lower two limited steps (66,71), upper end is threaded connection with universal drive shaft assembly 51, lower end is connected with drill bit; String bearing 70 is assemblied between upper and lower two limited steps (66,71); Upper TC moves cover 57, the quiet cover 58 of upper TC, shaft sealer a59, exhaust spacer 60, spacer briquetting 63, shaft sealer b64, uploads gland 65 and be assemblied between rotary drive pipe nipple 67 and transmission shaft shell 72 successively; Lower pressure transmission cover 74 is connected with transmission shaft shell 72 by screw thread, and seals the gap between itself and rotary drive pipe nipple 67 by shaft sealer c73; 74 inner surfaces are overlapped in lower pressure transmission and rotary drive pipe nipple 67 external surface is inlaid with hard alloy blocks; Stabilizer 69 is threaded connection on the external surface of transmission shaft shell 72.
Embodiment 5
See Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, in conjunction with above-described embodiment, the utility model discloses a kind of gas drilling mud motor, form primarily of four great institutions, that calm the anger power sub, double-action hydraulic power sub, air tight cycle liquid of double acting drives motor and exhaust-driven pipe nipple overnight respectively, calm the anger power sub, double-action hydraulic power sub, air tight cycle liquid of double acting drives motor and adopts screw thread to be connected successively with every liquid exhaust-driven pipe nipple, is sealed after each several part chamber aligns by sealing mat; Sealing mat d39 is arranged on double-action hydraulic power sub and air tight cycle liquid drives between motor.Certainly, calm the anger power sub, double-action hydraulic power sub, air tight cycle liquid of existing double acting also can be adopted to drive motor and be connected with exhaust-driven pipe nipple overnight and realize.
Embodiment 6: the assembling sequence of each parts of gas drilling mud motor
Step 1, is threadedly attached to position by air rammer 8 and distribution cylinder 17, with connecting rod 21 by key be connected put in place after integral installation be assigned in inner casing 10 li; Step 2, the centre bore final vacuum joint 20 that distribution cylinder 17 and connecting rod 21 pass exhaust joint 20 is threaded connection with outer shell 9 again; Step 3, connecting rod 21 is refilled after being connected by key with hydraulic plunger 29 through top cover 23 centre bore and is assigned in oil cylinder 32, link closely successively after each graticule alignment of top cover 23, oil cylinder 32 and bottom 37 and screw thread step surface gap meet the requirements, to guarantee that each chamber aligns connection, and sealed by sealing mat b28 and sealing mat c35; Step 4, be threaded exhaust joint 20 and top cover 23; Step 5, connect carrying joint 42, stator case 46, universal drive shaft assembly shell 55 and transmission shaft shell 72 successively, link closely successively after each graticule alignment and screw thread step surface gap meet the requirements, to guarantee that each chamber aligns connection, and sealed by sealing mat e44 and sealing mat f50, stator rubber lining 47 thermal-adhering is on stator case 46 inwall; Step 6, connects anti-lost connecting rod 45, rotor 49, universal drive shaft assembly 51 and rotary drive pipe nipple 67 successively; Step 7, above-mentioned component is put successively upper TC move cover 57, the quiet cover 58 of upper TC, shaft sealer a59, exhaust spacer 60, shaft sealer b64, upload gland 65, string bearing 70 and shaft sealer c73 be assemblied in universal drive shaft assembly shell 55 and transmission shaft shell 72; Step 8, by lower pressure transmission cover 74 press-in transmission shaft shell 72, be threaded with transmission shaft shell 72 and link closely, anti-lost connecting rod 45 upper end is locked with anti-lost locknut 40 through after anti-lost bulge loop 41; Step 9, is threaded exhaust joint 20 with top cover 23; Step 10, is threaded carrying joint 42 with bottom 37, links closely, to guarantee that each chamber aligns connection, and sealed by sealing mat d39 after graticule alignment and screw thread step surface gap meet the requirements.
Embodiment 7: the operating principle of gas drilling mud motor and the course of work
When gas drilling, the utility model connects at the bottom of drilling assembly lower going-into-well by the calm the anger top connection 1 of power sub of double acting, and the Compressed Gas that ground installation provides pushes non retern valve 2 open, and gas enters valve plate 5 by the annular air channel that valve seat 3 is offered; Gas guides in the axial air drain 12 between inner casing 10 and outer shell 9 by valve plate 5, and flow to rear gas chamber 16 by radial air drain 13, piston downtake 15, promotes air rammer 8 and is attached thereto the distribution cylinder 17, connecting rod 21 high speed uplink that connect; Air rammer 8 and distribution cylinder 17 go upward to air distribution hole 18 when exposing exhaust joint 20 upper surface, and the gases at high pressure in rear gas chamber 31 flow to exhaust chamber 22 li through upper air distribution hole 18 and lower air distribution hole 19, and upstroke terminates; Air rammer 8 continues up, when opening when the passage that air rammer 8 relies on piston radial air drain 14 and the relative position difference of radial air drain 13 to cut out to lead to rear gas chamber 16 passage leading to front air chamber 7, gas is through radial air drain 13, and axial air drain 12 and piston epithelium healing 11 flow to front air chamber 7; When the center-pole that air rammer 8 goes upward to valve plate 5 enters distribution cylinder 17, front air chamber 7 is closed, and under effect of inertia, air rammer 8 continues up, and the gas in it is compressed, and pressure constantly raises; Promote again air rammer 8 when pressure is increased to a certain degree and be attached thereto the distribution cylinder 17, connecting rod 21 high-speed downstream that connect; Air rammer 8 and distribution cylinder 17 come downwards to air distribution hole 18 when being positioned at below exhaust joint 20 upper surface, and front air chamber 7 inner high voltage gas flow to exhaust chamber 22 and discharge chamber 26 li through distribution cylinder 17, upper air distribution hole 18 and lower air distribution hole 19, and down stroke terminates; And so forth, gas energy is converted to pumping of air rammer 8 by double acting power sub of calming the anger; Directly be expelled to annular space through exhaust chamber 22, discharge chamber 26, steam vent 61, rotary drive pipe nipple steam vent 47 and hydrophthalmia 68 after air work terminates, remain the whole advantages of gas as circulatory mediator drilling well.
The hydraulic plunger 29 of double-action hydraulic power sub when driving hydraulic plunger 29 up by air rammer 8, distribution cylinder 17 and connecting rod 21 hydraulic oil promoted in front grease chamber 30 open front grease chamber pump fuel tap 24a, export the hydraulic oil of certain pressure and volume through oil pumping chamber 33; Because hydraulic oil is incompressible, cause the hydraulic oil in whole drilling tool airtight chamber still to open rear grease chamber oil return valve 24d with the amount of same volume, the back oil road 77 through oil back chamber 76 and bottom 37 flows back in oil cylinder 32, ensure that the continuity that fluid flows; Rear grease chamber pump fuel tap 24c opened by hydraulic oil after promoting when hydraulic plunger 29 is descending in grease chamber 31, exports the hydraulic oil of certain pressure and volume through oil pumping chamber 33; Because hydraulic oil is incompressible, cause the hydraulic oil in whole drilling tool airtight chamber still to open front grease chamber oil return valve 24b with the amount of same volume, the back oil road 77 through oil back chamber 76 and top cover 23 flows back in oil cylinder 32, ensure that the continuity that fluid flows equally; No matter hydraulic plunger 29 is in what position, as long as have lasting relative displacement with oil cylinder 32, and will output hydraulic pressure energy.
The hydraulic oil exported by double-action hydraulic power sub flow to air tight cycle liquid through oil pumping chamber 33 and drives the conjugate resonator that the carrying joint hydrophthalmia 38 of motor, rotor 49 and stator rubber lining 47 formed and rotate with CD-ROM drive motor rotor 49, and output torque; The planetary motion of motor rotor 49 is converted to dead axle motion by universal drive shaft assembly 51; The spill port 52 of low-pressure hydraulic oil after acting on universal drive shaft assembly shell 55 is back in oil back chamber 76 and back oil road 77; Air tight cycle liquid drives motor lower end and is closed by the shaft sealer a of Part IV of the present utility model every liquid exhaust-driven pipe nipple, thus form the sealing and circulating passage of a hydraulic oil.
Air tight cycle liquid drive motor export moment of torsion and rotating speed be delivered on liquid exhaust-driven pipe nipple by universal drive shaft assembly 51, this mechanism not only plays a part confining liquid and drives motor lower end, the gas in discharge chamber 26 is caused rotary drive pipe nipple hydrophthalmia 68, also plays a part seal lubrication bearing, transmits the pressure of the drill and support lateral force; Shaft sealer a59 is used for confining liquid force feed circulation canal; Exhaust spacer 60, spacer briquetting 63 are for separated exhaust; Shaft sealer b64, shaft sealer c73 are used for seal lubrication string bearing 70; Upper TC moves cover 57, the quiet cover of upper TC 58 and the hard alloy blocks processed respectively on lower pressure transmission cover 74, rotary drive pipe nipple 67 correspondence position plays a part to support lateral force; Upload gland 65, string bearing 70, lower pressure transmission cover 74 and rotary drive pipe nipple 67 on upper and lower limited step (66,71) play a part pipe nipple anti-lost and transmit the pressure of the drill.
Gas drilling mud motor fundamentally solves the problem that is short of power that gas direct drive motor rotor causes because of gas compression, leakage.Adopt incompressible hydraulic oil as medium drive screw motor in airtight chamber, not only remain the inherent hard mechanical property of screw motor, outputting power is enough to meet gas drilling needs, expand after air work simultaneously, and be directly expelled to annular space by bit port and take rock, remaining the whole advantages of gas as circulatory mediator, efficiently solve the well dynamic problem of gas horizontal well drilling, directional well and extended reach well, is the powerful mean cracking a gas drilling directional drilling difficult problem.
Claims (4)
1. the double acting being applicable to gas drilling mud motor is calmed the anger a power sub, it is characterized in that: comprise top connection, non retern valve, valve seat, sealing mat a, valve plate, shunting plug, air rammer, outer shell, inner casing, distribution cylinder, exhaust joint and connecting rod; One end of top connection is threaded with drilling assembly, and the other end is threaded with outer shell; Valve seat is positioned at top connection lower end and valve plate upper end by step; Valve base center hole is provided with non retern valve, and sealing mat a is arranged between valve seat and valve plate; Valve plate is positioned at outer cylinder interior by key, and shunting plug is arranged on the centre bore of valve plate; Inner casing is processed with the axial air drain in some roads, groove is processed with radial air drain, inner casing upper and lower end is positioned at valve plate lower end and outer cylinder interior respectively by step; Air rammer bilateral symmetry is distributed with upper and lower two groups of axial air flues, and epithelium healing leads to front air chamber, and downtake leads to rear gas chamber, and inside axial air flue, be processed with the radial air drain of through upper and lower two groups of air flues; Distribution cylinder adopts and is threaded on the central row air flue inwall of air rammer, and distribution cylinder bottom is processed with upper and lower two assembly pores, and distribution cylinder by exhaust joint centre bore, and forms clearance seal face with exhaust joint; Connecting rod is threaded with distribution cylinder by the top cover of double-action hydraulic power sub, bottom centre bore, and forms clearance seal face with the top cover of double-action hydraulic power sub and bottom; Exhaust joint upper end is connected with outer shell by screw thread, and lower end and double-action hydraulic power sub are threaded connection, and its upper surface is processed with a centre bore and passes through for distribution cylinder, and forms clearance seal face with distribution cylinder.
2. a kind of double acting being applicable to gas drilling mud motor according to claim 1 is calmed the anger power sub, it is characterized in that: front air chamber is formed by valve plate, annular space between air rammer and inner casing.
3. a kind of double acting being applicable to gas drilling mud motor according to claim 2 is calmed the anger power sub, it is characterized in that: rear gas chamber is formed by air rammer, annular space between outer shell and exhaust joint.
4. a kind of double acting being applicable to gas drilling mud motor according to claim 3 is calmed the anger power sub, it is characterized in that: exhaust chamber is formed by exhaust joint, annular space between double-action hydraulic power sub top cover and connecting rod.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105443035A (en) * | 2015-12-31 | 2016-03-30 | 西南石油大学 | Gas drive hydraulic drive gas drilling screw drill capable of achieving remote control speed governing function |
| CN105484665A (en) * | 2015-12-31 | 2016-04-13 | 西南石油大学 | Gas drive liquid self-circulation gas drilling positive screw drill |
| CN109630620A (en) * | 2018-12-03 | 2019-04-16 | 西南石油大学 | A kind of no universal shaft screw rod |
| CN112377090A (en) * | 2020-10-27 | 2021-02-19 | 中煤科工集团西安研究院有限公司 | Spray lubrication drill rod |
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- 2014-08-27 CN CN201420486756.7U patent/CN204024463U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443035A (en) * | 2015-12-31 | 2016-03-30 | 西南石油大学 | Gas drive hydraulic drive gas drilling screw drill capable of achieving remote control speed governing function |
| CN105484665A (en) * | 2015-12-31 | 2016-04-13 | 西南石油大学 | Gas drive liquid self-circulation gas drilling positive screw drill |
| CN109630620A (en) * | 2018-12-03 | 2019-04-16 | 西南石油大学 | A kind of no universal shaft screw rod |
| CN112377090A (en) * | 2020-10-27 | 2021-02-19 | 中煤科工集团西安研究院有限公司 | Spray lubrication drill rod |
| CN112377090B (en) * | 2020-10-27 | 2022-05-10 | 中煤科工集团西安研究院有限公司 | Spray lubrication drill rod |
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Effective date of registration: 20200909 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Co-patentee after: CNPC Chuanqing Drilling Engineering Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: The 1 section of No. 3 company Chuanqing Drilling Technology Information Office Chenghua District Green Road 610051 Chengdu City, Sichuan Province Patentee before: CNPC Chuanqing Drilling Engineering Co.,Ltd. |