CN105221072A - A kind of construction operation tubing string being applied to petroleum gas engineering - Google Patents
A kind of construction operation tubing string being applied to petroleum gas engineering Download PDFInfo
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- CN105221072A CN105221072A CN201510726202.9A CN201510726202A CN105221072A CN 105221072 A CN105221072 A CN 105221072A CN 201510726202 A CN201510726202 A CN 201510726202A CN 105221072 A CN105221072 A CN 105221072A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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Abstract
The invention belongs to petroleum gas engineering field, disclose a kind of construction operation tubing string being applied to petroleum gas engineering, when this tubing string is applied to drilling engineering casing job, is connected in series successively by sleeve pipe hole-drawing device, eddy current rotation pipe nipple, rotary dynamic seal pipe nipple, axis of rotation locking pipe nipple and casing joint and forms; This tubing string is applied to the tubing string of oil formation improvement volume increase acidizing treatment, is connected in series successively is formed by acid solution ejector, eddy current rotation pipe nipple, rotary dynamic seal pipe nipple and oil connection.The present invention drives turbine rotation pipe nipple by working solution in casing job, drives sleeve pipe hole-drawing device to rotate, constantly repairs the borehole wall, prevent sleeve pipe to be hampered, and enters, and can improve sleeve bottom cementing quality under making sleeve pipe smoothly; In volume increase acidizing treatment, turbine rotation pipe nipple drives acid solution ejector to rotate, and forms the acid solution of rotary-jet, realizes uniform acid distribution, improves acidifying efficiency.
Description
Technical field
The invention belongs to petroleum gas engineering field, specifically, relate to the operating tool string of casing job and volume increase acidizing treatment.
Background technology
In the casing job of oil and gas well drilling engineering, if be hampered, conventional treatment means are more single, jetting flushing and up and down tubing string can only be adopted to go resistance, not only easily cause centralizer by bunch tube case accident, and sometimes still can not solve sleeve pipe and to be hampered problem, can only upper lifting pipe post, again drifting, causes the increase of drilling time and drilling cost.In addition, during existing casing job, the cement paste of sleeve bottom stirs insufficient, affects the cementing quality of sleeve bottom.
In increasing yield of oil and natural gas acidizing treatment, because conventional acid filling mode is the general acid filling in down-hole, bottom during acid filling, acid filling tubing string is static, often occurs that working solution (acid solution) cloth liquid is uneven, causes acidifying efficiency not high.Therefore, the problem that working solution (acid solution) cloth liquid is uneven can not get solving always.
Summary of the invention
It is the technical problem be hampered in existing oil and gas well drilling engineering casing job that the present invention one of will solve, and provides a kind of tubing string when being applied to drilling engineering casing job.
In order to solve the problems of the technologies described above, the present invention is achieved by following technical scheme:
A kind of construction operation tubing string being applied to petroleum gas engineering, this tubing string is applied to drilling engineering casing job, is connected in series successively from top to bottom forms by sleeve pipe hole-drawing device (1), eddy current rotation pipe nipple (2), rotary dynamic seal pipe nipple (3), axis of rotation locking pipe nipple (4) and casing joint (5);
Described sleeve pipe hole-drawing device (1) comprises centralizer (101), cutting teeth (102), can bore hole-drawing device leads footwear (103), sprays hydrophthalmia (104), spiral wiper block (105); The shell (202) that described centralizer (101) upper end and described eddy current rotate pipe nipple (2) is connected; Described spiral wiper block (105) is arranged at described centralizer (101) external surface, and it is inlaid with Talide; Described cutting teeth (102) is arranged at described centralizer (101) external surface, and is positioned at described spiral wiper block (105) below; Described bore hole-drawing device lead footwear (103) be connected to described centralizer (101) bottom, its end is eccentric flow line style; The described hole-drawing device that bores is led on footwear (103) and is offered described injection hydrophthalmia (104);
Described eddy current rotates pipe nipple (2) and comprises shell (202) and turbine (201); Described shell (202) upper end is connected with the axis of rotation (301) of rotary dynamic seal pipe nipple (3), and lower end is connected with the centralizer (101) of described sleeve pipe hole-drawing device (1); It is inner that described turbine (201) is arranged on shell (202), and the spiral blade uniform by hoop is formed;
Described rotary dynamic seal pipe nipple (3) comprises axis of rotation (301), sand block letter (302), metal bellows (303), Compress Spring (304), moving-coil (305), antifriction diaphragm seal (306), Jing Quan (307), sealing ring (308), bearing (309), supporting positive cover (310); Wherein, described sand block letter (302), described metal bellows (303), described Compress Spring (304), described moving-coil (305), described antifriction diaphragm seal (306), described Jing Quan (307), described sealing ring (308), described bearing (309) are two groups, the symmetrical upper and lower being arranged on described axis of rotation (301); The shell (202) that described axis of rotation (301) bottom and described eddy current rotate pipe nipple (2) is connected, and top is provided with dentalation; Described axis of rotation (301) is arranged in described supporting positive cover (310), and is supported in the central axis of described supporting positive cover (310) by symmetrically arranged two described bearings (309); The adapter sleeve (401) that described supporting positive cover (310) upper end and described axis of rotation lock pipe nipple (4) is connected; What Jing Quan (307) described in two groups was symmetrical is arranged on described axis of rotation (301) outside, and adopt the contrary hand of spiral to be connected to described supporting positive cover (310), one end of described Jing Quan (307) and described bearing (309) end face seal, the other end is provided with described antifriction diaphragm seal (306); What moving-coil (305) described in two groups was symmetrical is arranged on described axis of rotation (301) outside, described moving-coil (305) one end is provided with described antifriction diaphragm seal (306), and the other end is compressed by described metal bellows (303) and described Compress Spring (304); It is outside that described Compress Spring (304) is sleeved on described metal bellows (303), and described moving-coil (305) and described metal bellows (303) are fixedly welded on described axis of rotation (301) with high frequency electric; Often organize described antifriction diaphragm seal (306) and comprise two panels, be arranged between described moving-coil (305) and described Jing Quan (307); Described sand block letter (302) is arranged at the outer end of metal bellows (303) described in two groups, is installed on the annular space between described axis of rotation (301) and described supporting positive cover (310);
Described axis of rotation locking pipe nipple (4) comprises adapter sleeve (401), locking ring (402), spline key (403), retaining ring (404), safe shear pin (405), pin (406), can bore weir (407); Described adapter sleeve (401) upper end is connected with described casing joint (5), and lower end is connected with the supporting positive cover (310) of described rotary dynamic seal pipe nipple (3); Described locking ring (402) is arranged on described adapter sleeve (401) inside and is fixed on described adapter sleeve (401) by the described safe shear pin (405) that its top is arranged, described locking ring (402) bottom is provided with the dentalation that mutually can be engaged with the dentalation on described axis of rotation (301) top, and described locking ring (402) top is fixed by described pin (406) and described weir (407) of boring; It is outside that described retaining ring (404) is arranged at described locking ring (402), and be arranged in the reserved cannelure of described adapter sleeve (401) the interior surface of revolution, when after described locking ring (402) and described axis of rotation (301) snap-lock, described retaining ring (404) partly can eject the cannelure of described adapter sleeve (401), push down descending put in place describedly bore weir (407), prevent described locking ring (402) upwards rollback; Described locking ring (402) bottom and described adapter sleeve (401) bottom corresponding be provided with preformed groove, described spline key (403) to be arranged in this preformed groove and to be fixed on described locking ring (402), and described spline key (403) is for preventing both rotations after described locking ring (402) and described axis of rotation (301) snap-lock.
Wherein, the spiral blade of described turbine (201) is by the fan-shaped spiral assembling structure be processed into 15 ~ 20 degree of central angles; Its spiral angle is 60 ~ 120 degree, and helix length is 1.5 ~ 2 meters, and thickness is preferably 3 ~ 6 millimeters.
Wherein, described turbine (201) is aluminum alloy material.
Wherein, described turbine (201) is dextrorotation.
Wherein, described axis of rotation (301) is provided with solder bath (303a), solder is pre-charged with in described solder bath (303a), after described moving-coil (305), described metal bellows (303) and described Compress Spring (304) are in place, utilize high frequency coil to produce high frequency electric melting solder, make described moving-coil (305), described metal bellows (303) welds with described axis of rotation (301) and seal.
What the present invention will solve two is uneven technical problems of cloth acid in existing oil and gas well drilling engineering volume increase acidizing treatment, provides a kind of tubing string being applied to oil formation improvement volume increase acidizing treatment.
In order to solve the problems of the technologies described above, the present invention is achieved by following technical scheme:
A kind of construction operation tubing string being applied to petroleum gas engineering, be applied to the tubing string of oil formation improvement volume increase acidizing treatment, be connected in series successively by acid solution ejector (6), eddy current rotation pipe nipple (2), rotary dynamic seal pipe nipple (3) and oil connection (7) from top to bottom and form;
Described eddy current rotates pipe nipple (2) and comprises shell (202) and turbine (201); Described shell (202) upper end is connected with the axis of rotation (301) of rotary dynamic seal pipe nipple (3), and lower end is connected with described acid solution ejector (6); It is inner that described turbine (201) is arranged on shell (202), and the spiral blade uniform by hoop is formed;
Described rotary dynamic seal pipe nipple (3) comprises axis of rotation (301), sand block letter (302), metal bellows (303), Compress Spring (304), moving-coil (305), antifriction diaphragm seal (306), Jing Quan (307), sealing ring (308), bearing (309), supporting positive cover (310); Wherein, described sand block letter (302), described metal bellows (303), described Compress Spring (304), described moving-coil (305), described antifriction diaphragm seal (306), described Jing Quan (307), described sealing ring (308), described bearing (309) are two groups, the symmetrical upper and lower being arranged on described axis of rotation (301); The shell (202) that described axis of rotation (301) bottom and described eddy current rotate pipe nipple (2) is connected, and top is provided with dentalation; Described axis of rotation (301) is arranged in described supporting positive cover (310), and is supported in the central axis of described supporting positive cover (310) by symmetrically arranged two described bearings (309); Described supporting positive cover (310) upper end is connected with described oil connection (7); What Jing Quan (307) described in two groups was symmetrical is arranged on described axis of rotation (301) outside, and adopt the contrary hand of spiral to be connected to described supporting positive cover (310), one end of described Jing Quan (307) and described bearing (309) end face seal, the other end is provided with described antifriction diaphragm seal (306); What moving-coil (305) described in two groups was symmetrical is arranged on described axis of rotation (301) outside, described moving-coil (305) one end is provided with described antifriction diaphragm seal (306), and the other end is compressed by described metal bellows (303) and described Compress Spring (304); It is outside that described Compress Spring (304) is sleeved on described metal bellows (303), and described moving-coil (305) and described metal bellows (303) are fixedly welded on described axis of rotation (301) with high frequency electric; Often organize described antifriction diaphragm seal (306) and comprise two panels, be arranged between described moving-coil (305) and described Jing Quan (307); Described sand block letter (302) is arranged at the outer end of metal bellows (303) described in two groups, is installed on the annular space between described axis of rotation (301) and described supporting positive cover (310).
Wherein, the spiral blade of described turbine (201) is by the fan-shaped spiral assembling structure be processed into 15 ~ 20 degree of central angles; Its spiral angle is 60 ~ 120 degree, and helix length is 1.5 ~ 2 meters, and thickness is preferably 3 ~ 6 millimeters.
Wherein, described turbine (201) is aluminum alloy material.
Wherein, described turbine (201) is dextrorotation.
Wherein, described axis of rotation (301) is provided with solder bath (303a), solder is pre-charged with in described solder bath (303a), after described moving-coil (305), described metal bellows (303) and described Compress Spring (304) are in place, utilize high frequency coil to produce high frequency electric melting solder, make described moving-coil (305), described metal bellows (303) welds with described axis of rotation (301) and seal.
The invention has the beneficial effects as follows:
In drilling engineering casing job, utilize the circulation fluid applied during setting of casing, drive turbine rotation pipe nipple to rotate, turbine rotation pipe nipple drives the axis of rotation on its top and the sleeve pipe hole-drawing device of its underpart to rotate again.Energy is sprayed because sleeve pipe hole-drawing device has rotation function and discharges hydraulic water power, this tubing string is made constantly to repair the borehole wall in casing job, especially to undergauge and have the pit shaft of step to have continuous dressing effect, ensure that well becomes rule, thus prevent sleeve pipe to be hampered, tubing string is lowered into smoothly and reaches the object degree of depth.After completing cement injection, axis of rotation can be locked pipe nipple locking by axis of rotation, and the cement paste of sleeve bottom is able to abundant stirring in the cementing stage, thus can improve sleeve bottom cementing quality.Therefore, tubing string when being applied to drilling engineering casing job of the present invention has the features such as highly effective and safe, can reduce sea, land drillng operation total cost.
In oil formation improvement volume increase acidizing treatment, tubing string of the present invention utilizes working solution (acid solution) to drive eddy current to rotate pipe nipple and rotates, turbine rotation pipe nipple drives the axis of rotation on its top and the acid solution ejector of its underpart to rotate again, acid solution ejector can form the acid solution of rotary-jet, make cloth acid evenly, thus improve the effect of acidizing treatment.
Accompanying drawing explanation
Fig. 1 (a) the present invention is applied to structural representation during drilling engineering casing job;
Fig. 1 (b) be the present invention be applied to oil formation improvement volume increase acidizing treatment time structural representation;
Fig. 2 is the structural representation that eddy current rotates pipe nipple; Wherein, D is front view, and E is cross-sectional view, and F is longitudinal plan, and G is shaft side figure;
Fig. 3 is the structural representation of rotary dynamic seal pipe nipple;
Fig. 4 is the structural representation of axis of rotation locking pipe nipple;
Fig. 5 is the structural representation of sleeve pipe hole-drawing device.
In figure: 1, sleeve pipe hole-drawing device: 101, centralizer, 102, cutting teeth, 103, hole-drawing device can be bored lead footwear, 104, spray hydrophthalmia, 105, spiral wiper block;
2, eddy current rotates pipe nipple: 201, turbine, and 202, shell;
3, rotary dynamic seal pipe nipple: 301, axis of rotation, 302, sand block letter, 303, metal bellows, 304, Compress Spring, 305, moving-coil, 306, antifriction diaphragm seal, 307, right-handed thread Jing Quan, 308, sealing ring, 309, bearing, 310, supporting positive cover, 303a, solder bath, 307a, left hand thread Jing Quan;
4, axis of rotation locking pipe nipple: 401, adapter sleeve, 402, locking ring, 403, spline key, 404, retaining ring, 405, safe shear pin, 406, pin, 407, can weir be bored;
5, casing joint;
6, acid solution ejector;
7, oil connection.
Detailed description of the invention
For summary of the invention of the present invention, feature and effect can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Embodiment 1
As shown in Fig. 1 (a), present embodiment discloses a kind of construction operation tubing string being applied to petroleum gas engineering, specifically be applied to tubing string during drilling engineering casing job, rotate pipe nipple 2, rotary dynamic seal pipe nipple 3, axis of rotation locking pipe nipple 4 and casing joint 5 form primarily of sleeve pipe hole-drawing device 1, eddy current.
Enter under tubing string in process, eddy current rotates pipe nipple 2 and rotates under circulation fluid effect, drives sleeve pipe hole-drawing device 1 to rotate, implements finishing to the irregular borehole wall, after sleeve pipe hole-drawing device 1 arrives shaft bottom, injects cement paste, displacement fluid.After this stage casing job completes, press down with drill bit and can bore weir 407, axis of rotation 301 locks by locking ring 402; Spud in again and bore except turbine 201 and sleeve pipe hole-drawing device 1 obstruction, continue, to get out slim-hole downwards.
As shown in Figure 2, eddy current rotation pipe nipple 2 is made up of turbine 201 cemented together and shell 202.Shell 202 is cylinder-like structure, and its two ends are respectively arranged with external screw thread.Shell 202 upper end is connected with gas thread with axis of rotation 301 lower end of rotary dynamic seal pipe nipple 3, and shell 202 lower end is connected with gas thread with sleeve pipe hole-drawing device 1 upper end.Turbine 201 is designed to dextrorotation, and the spiral blade uniform by three hoops is formed, and spiral blade is the spiral laminated structure that the fan-shaped aluminum alloy sheet with 15 ~ 20 degree of central angles is processed into.In order to hydraulic energy Efficient Conversion can be made to be mechanical rotation function, the spiral angle of spiral blade is preferably 60 ~ 120 degree, and helix length is preferably 1.5 ~ 2 meters, and thickness is preferably 3 ~ 6 millimeters.Turbine 201 selects aluminum alloy material to be that can be fallen by tricone bit or PDC bit drills, drilling cuttings drilling fluid is returned and is carried to ground simultaneously in order to after casing job completes.
As shown in Figure 3, rotary dynamic seal pipe nipple 3 comprises an axis of rotation 301, two groups of sand block letters 302, two groups of metal bellowss 303, two groups of Compress Springs 304, two groups of moving-coils 305, two groups of antifriction diaphragm seals 306, the quiet circle of right-handed thread 307, left hand thread quiet circle 307a, two groups of sealing rings, 308, two groups of bearings, 309, supporting positive cover 310.Rotary dynamic seal pipe nipple 3 overcomes the defect that traditional rotary dynamic seal is difficult at subsurface environment realize, and has efficient, reliable, durable feature.
Axis of rotation 301 bottom is provided with external screw thread, for being connected with gas thread with the shell 202 that eddy current rotates pipe nipple 2; Axis of rotation 301 top is set to dentalation, uses during for being locked by axis of rotation locking pipe nipple 4.In order to control the vibrations of turning cylinder 301, make sleeve pipe hole-drawing device 1 only have finishing effect to irregular pit shaft and not depart from intrinsic well track, axis of rotation 301 is supported in the central axis of supporting positive cover 310 by two symmetrically arranged bearings 309.Supporting positive cover 310 upper end is provided with internal thread, for being threaded with adapter sleeve 401 lower end that axis of rotation locks pipe nipple 4.
Be provided with one group of symmetrical first step in the middle part of supporting positive cover 310, this first step is used for positioning two bearings 309.The quiet circle of right-handed thread 307 and left hand thread quiet circle 307a position symmetrically, are arranged between supporting positive cover 310 and axis of rotation 301, by second step and the 3rd step location of supporting positive cover 310, and by being screwed on supporting positive cover 310.The quiet circle of right-handed thread 307 and left hand thread quiet circle 307a adopt contrary rotation direction, so that it automatically screws and prevents from loosening.The quiet circle of right-handed thread 307, to seal respectively by sealing ring 308 between left hand thread quiet circle 307a and supporting positive cover 310.The quiet circle of right-handed thread 307 and left hand thread quiet circle 307a lay respectively at two bearing 309 outer ends, and and end face seal between bearing 309.
The upper and lower of axis of rotation 301 is symmetrically arranged with two moving-coils 305, and the outer end of moving-coil 305 is compressed by metal bellows 303 and Compress Spring 304.It is outside that Compress Spring 304 is set in metal bellows 303, moving-coil 305 and metal bellows 303 are weldingly fixed on axis of rotation 301 with high frequency electric, first solder is coated in solder bath 303a before being specially installation, after the complex of moving-coil 305 and metal bellows 303, Compress Spring 304 is in place, the high frequency electric melting solder utilizing high frequency coil to produce, thus make moving-coil 305, metal bellows 303 weld with axis of rotation 301 and be sealed, and then increase movable sealing, extend the life-span of axis of rotation 301.Metal bellows 303 and Compress Spring 304 have damping and substrate hold-down function, pressure can be applied to moving-coil 305, and absorb the vibrations of axis of rotation 301, guarantee end face seal, thus ensure that the reliability of plane movable sealing, extend bearing 309 life-span, enter under guaranteeing sleeve pipe and complete smoothly with cement slurry cementing.
One group of antifriction diaphragm seal 306 is arranged between moving-coil 305 and the quiet circle 307 of right-handed thread, another group antifriction diaphragm seal 306 is arranged between moving-coil 305 and left hand thread quiet circle 307a, often organize antifriction diaphragm seal 306 and comprise two panels, play high pressure sealing, lubrication and wear-resisting effect.The material adopted due to antifriction diaphragm seal 306 is through electron bombardment furnace high-energy electron irradiation gained with polyflon, its anti-wear performance substantially exceeds ultra-high molecular weight polyethylene, polyether-ether-ketone, the existing conventional high-abrasive material such as polytetrafluoroethylene (PTFE), has superpower wear-resistant.
The outer symmetrical at axis of rotation 301 two ends is provided with sand block letter 302, the annular space of sand block letter 302 between axis of rotation 301 and supporting positive cover 310, and is located by the 4th step of supporting positive cover 310, thus it is inner to prevent sand from falling into supporting positive cover 310.
The assembling process of rotary dynamic seal pipe nipple 3 is: be coated in by solder in solder bath 303a, axis of rotation 301 is inserted supporting positive cover 310, from upper, lower two ends are respectively pressed into a bearing 309, the quiet circle 307 of right-handed thread is screwed in from upper end, left hand thread quiet circle 307a is screwed in from lower end, one group of moving-coil 305 is pushed respectively from top and bottom, the complex of metal bellows 303 and Compress Spring 304, be located in solder bath 303a, the high frequency electric melting solder utilizing high frequency coil to produce, make moving-coil 305, metal bellows 303 welds with axis of rotation 301 and is sealed, finally load sand block letter 302.
As shown in Figure 4, axis of rotation locking pipe nipple 4 comprises adapter sleeve 401, locking ring 402, spline key 403, retaining ring 404, safe shear pin 405, pin 406, can bore weir 407.Axis of rotation locking pipe nipple 4, for after completing setting of casing, well cementing operation, locks turning cylinder 301 when needing brill to fall the obstruction such as turbine 201 and sleeve pipe hole-drawing device 1 to continue feel ahead downwards.
The upper end of adapter sleeve 401 is provided with internal thread, for being connected with casing joint 5; The lower end of adapter sleeve 401 is provided with external screw thread, for being connected with supporting positive cover 310 upper end of rotary dynamic seal pipe nipple 3.Adapter sleeve 401 inside is provided with locking ring 402, and locking ring 402 bottom is provided with dentalation, and this dentalation matches with the dentalation on axis of rotation 301 top, plays the effect of locking axis of rotation 301 can mutually be engaged.Locking ring 402 top is fixed with by pin 406 the bored weir 407 that aluminium alloys makes.Adapter sleeve 401 is fixed on by safe shear pin 405 in locking ring 402 top, safe shear pin 405 when locking ring 402 is not pressed down for itself and adapter sleeve 401 are fixed, locking ring 402 bear certain pressure by after cut off.Retaining ring 404 is coil structures, is arranged at the outside of locking ring 402, and instrument can be utilized during installation to make in its cannelure entered in adapter sleeve 401 on the surface of revolution, and then pushes locking ring 402 and be fixed.When weir 407 can be bored and locking ring 402 is pressed down and after the snap-lock of locking ring 402 and axis of rotation 301, a part for retaining ring 404 can eject the cannelure of adapter sleeve 401, push down descending the bored weir put in place 407, prevent locking ring 402 upwards rollback.What the bottom of locking ring 402 bottom and adapter sleeve 401 was corresponding is provided with preformed groove, the spline key 403 be adhesively fixed with locking ring 402 is provided with in this preformed groove, spline key 403 at locking ring 402 after the snap-lock of axis of rotation 301, ensure that locking ring 402 and axis of rotation 301 do not rotate.
The assembling process of axis of rotation locking pipe nipple 4 is: can bore weir 407 with pin 406 and be fixed on locking ring 402, with butter, spline key 403 is bonded in the preformed groove of locking ring 402, locking ring 402 is pushed in adapter sleeve 401, notice that spline key 403 aims at the straight trough in adapter sleeve 401.With instrument, retaining ring 404 is pressed in the cannelure in adapter sleeve 401, shifts position onto by locking ring 402, safe shear pin 405 is installed.
As shown in Figure 5, sleeve pipe hole-drawing device 1 comprise centralizer 101, PDC cutting teeth 102, can bore hole-drawing device lead footwear 103, spray hydrophthalmia 104, spiral wiper block 105.Centralizer 101 is the agent structure of sleeve pipe hole-drawing device 1, is made up of alloy steel, and the lower end thread seal that its upper end and eddy current rotate pipe nipple 2 is connected.Bossed spiral wiper block 105 on centralizer 101 external surface, be designed to the contact area that spirality can increase spiral wiper block 105 and stratum, better placed in the middle to sleeve pipe hole-drawing device 1 righting, thus more effective reaming, cutting carring effect is also better, and when rotating in addition, resistance also can be less.Spiral wiper block 105 is inlaid with Talide, not only there is gauge effect, certain auxiliary reaming function can also be played.The external surface of centralizer 101 is provided with PDC cutting teeth 102 in the below of spiral wiper block 102, for fractured rock, gets through well passage.Can bore hole-drawing device to lead footwear 103 and be connected to bottom centralizer 101, its end is eccentric flow line style, compared to traditional elliposoidal hole-drawing device lead footwear can reduce tubing string under fashionable resistance.Hole-drawing device can be bored lead on footwear 103 and offer some injection hydrophthalmias 104.
8
1/
2" in (215mm) pit shaft, under enter 5
1/
2" (140mm) sleeve pipe enters down sleeve pipe hole-drawing device 1, eddy current rotation pipe nipple 2, rotary dynamic seal pipe nipple 3, axis of rotation locking pipe nipple 4 and casing joint 5 successively.Wherein, the external diameter of sleeve pipe hole-drawing device 1 and rotary dynamic seal pipe nipple 3 is close to the borehole wall, and outer rim leaves spiral grooves; Eddy current rotates the shell 202 of pipe nipple 2, the axis of rotation 301 of rotary dynamic seal pipe nipple 3, and locking ring 402 radial dimension of axis of rotation locking pipe nipple 4 is close with casing size.Tubing string under enter to be hampered time inject drilling fluid, sleeve pipe hole-drawing device 1 is worked, until lower to shaft bottom, during cementing slurry, turbine rotation pipe nipple 1 and sleeve pipe hole-drawing device 1, still in work, have ensured and have entered and shaft bottom cementing quality under sleeve pipe is smoothly.Band grout cures and available drill bit press down and can bore weir 407, and axis of rotation 301 is locked, and now retaining ring 404 ejects annular groove, and locking ring 402 cannot be return.After axis of rotation 301 locks, spud in and bore except the bored hole-drawing device that can bore in weir 407, turbine 201 and sleeve pipe hole-drawing device 1 leads footwear 104, continue to get out next step new well.
The problem that is hampered because pit shaft undergauge, step produce is entered under the tubing string of the present embodiment can solve oil drilling sleeve pipe, there is short, feature that efficiency is high consuming time, burst accident can be reduced, reduce marine, land drillng operation total cost, and in the cementing slurry stage, by the rotation of tubing string bottom tool (comprise sleeve pipe hole-drawing device 1, eddy current rotates pipe nipple 2, rotary dynamic seal pipe nipple 3), reduce and eliminate the microbubble in sleeve bottom cement paste, cement paste is evenly distributed, contributes to the cementing quality improving sleeve bottom.
Embodiment 2
As shown in Fig. 1 (b), present embodiment discloses a kind of construction operation tubing string being applied to petroleum gas engineering, specifically be applied to the tubing string of oil formation improvement volume increase acidizing treatment, rotate pipe nipple 2, rotary dynamic seal pipe nipple 3 and oil connection 7 form primarily of acid solution ejector 6, eddy current.
The concrete structure that eddy current rotates pipe nipple 2 is identical with embodiment 1, and repeat no more, its difference is only the acidproof cast steel of the material selection of turbine 201 herein.The concrete structure of rotary dynamic seal pipe nipple 3 is identical with embodiment 1, repeats no more herein.
Eddy current rotates shell 202 upper end of pipe nipple 2 and is connected with gas thread with axis of rotation 301 lower end of rotary dynamic seal pipe nipple 3, and shell 202 lower end is connected with gas thread with acid solution ejector 6 upper end.Supporting positive cover 310 upper end of axis of rotation 301 is directly connected with oil connection 7.
In volume increase acidizing treatment, because string size of the present invention is short and small, well is good by property, and bottom it, the rotation of acid solution ejector 6 can form the rotary-jet flowing of acid solution, realizes uniform acid distribution, improves acidifying efficiency.
Although be described the preferred embodiments of the present invention by reference to the accompanying drawings above; but the present invention is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, can also make the concrete conversion of a lot of form, these all belong within protection scope of the present invention.
Claims (6)
1. one kind is applied to the construction operation tubing string of petroleum gas engineering, it is characterized in that, this tubing string is applied to drilling engineering casing job, is connected in series successively from top to bottom forms by sleeve pipe hole-drawing device (1), eddy current rotation pipe nipple (2), rotary dynamic seal pipe nipple (3), axis of rotation locking pipe nipple (4) and casing joint (5);
Described sleeve pipe hole-drawing device (1) comprises centralizer (101), cutting teeth (102), can bore hole-drawing device leads footwear (103), sprays hydrophthalmia (104), spiral wiper block (105); The shell (202) that described centralizer (101) upper end and described eddy current rotate pipe nipple (2) is connected; Described spiral wiper block (105) is arranged at described centralizer (101) external surface, and it is inlaid with Talide; Described cutting teeth (102) is arranged at described centralizer (101) external surface, and is positioned at described spiral wiper block (105) below; Described bore hole-drawing device lead footwear (103) be connected to described centralizer (101) bottom, its end is eccentric flow line style; The described hole-drawing device that bores is led on footwear (103) and is offered described injection hydrophthalmia (104);
Described eddy current rotates pipe nipple (2) and comprises shell (202) and turbine (201); Described shell (202) upper end is connected with the axis of rotation (301) of rotary dynamic seal pipe nipple (3), and lower end is connected with the centralizer (101) of described sleeve pipe hole-drawing device (1); It is inner that described turbine (201) is arranged on shell (202), and the spiral blade uniform by hoop is formed;
Described rotary dynamic seal pipe nipple (3) comprises axis of rotation (301), sand block letter (302), metal bellows (303), Compress Spring (304), moving-coil (305), antifriction diaphragm seal (306), Jing Quan (307), sealing ring (308), bearing (309), supporting positive cover (310); Wherein, described sand block letter (302), described metal bellows (303), described Compress Spring (304), described moving-coil (305), described antifriction diaphragm seal (306), described Jing Quan (307), described sealing ring (308), described bearing (309) are two groups, the symmetrical upper and lower being arranged on described axis of rotation (301); The shell (202) that described axis of rotation (301) bottom and described eddy current rotate pipe nipple (2) is connected, and top is provided with dentalation; Described axis of rotation (301) is arranged in described supporting positive cover (310), and is supported in the central axis of described supporting positive cover (310) by symmetrically arranged two described bearings (309); The adapter sleeve (401) that described supporting positive cover (310) upper end and described axis of rotation lock pipe nipple (4) is connected; What Jing Quan (307) described in two groups was symmetrical is arranged on described axis of rotation (301) outside, and adopt the contrary hand of spiral to be connected to described supporting positive cover (310), one end of described Jing Quan (307) and described bearing (309) end face seal, the other end is provided with described antifriction diaphragm seal (306); What moving-coil (305) described in two groups was symmetrical is arranged on described axis of rotation (301) outside, described moving-coil (305) one end is provided with described antifriction diaphragm seal (306), and the other end is compressed by described metal bellows (303) and described Compress Spring (304); It is outside that described Compress Spring (304) is sleeved on described metal bellows (303), and described moving-coil (305) and described metal bellows (303) are fixedly welded on described axis of rotation (301) with high frequency electric; Often organize described antifriction diaphragm seal (306) and comprise two panels, be arranged between described moving-coil (305) and described Jing Quan (307); Described sand block letter (302) is arranged at the outer end of metal bellows (303) described in two groups, is installed on the annular space between described axis of rotation (301) and described supporting positive cover (310);
Described axis of rotation locking pipe nipple (4) comprises adapter sleeve (401), locking ring (402), spline key (403), retaining ring (404), safe shear pin (405), pin (406), can bore weir (407); Described adapter sleeve (401) upper end is connected with described casing joint (5), and lower end is connected with the supporting positive cover (310) of described rotary dynamic seal pipe nipple (3); Described locking ring (402) is arranged on described adapter sleeve (401) inside and is fixed on described adapter sleeve (401) by the described safe shear pin (405) that its top is arranged, described locking ring (402) bottom is provided with the dentalation that mutually can be engaged with the dentalation on described axis of rotation (301) top, and described locking ring (402) top is fixed by described pin (406) and described weir (407) of boring; It is outside that described retaining ring (404) is arranged at described locking ring (402), and be arranged in the reserved cannelure of described adapter sleeve (401) the interior surface of revolution, when after described locking ring (402) and described axis of rotation (301) snap-lock, described retaining ring (404) partly can eject the cannelure of described adapter sleeve (401), push down descending put in place describedly bore weir (407), prevent described locking ring (402) upwards rollback; Described locking ring (402) bottom and described adapter sleeve (401) bottom corresponding be provided with preformed groove, described spline key (403) to be arranged in this preformed groove and to be fixed on described locking ring (402), and described spline key (403) is for preventing both rotations after described locking ring (402) and described axis of rotation (301) snap-lock.
2. one kind is applied to the construction operation tubing string of petroleum gas engineering, it is characterized in that, be applied to the tubing string of oil formation improvement volume increase acidizing treatment, be connected in series successively by acid solution ejector (6), eddy current rotation pipe nipple (2), rotary dynamic seal pipe nipple (3) and oil connection (7) from top to bottom and form;
Described eddy current rotates pipe nipple (2) and comprises shell (202) and turbine (201); Described shell (202) upper end is connected with the axis of rotation (301) of rotary dynamic seal pipe nipple (3), and lower end is connected with described acid solution ejector (6); It is inner that described turbine (201) is arranged on shell (202), and the spiral blade uniform by hoop is formed;
Described rotary dynamic seal pipe nipple (3) comprises axis of rotation (301), sand block letter (302), metal bellows (303), Compress Spring (304), moving-coil (305), antifriction diaphragm seal (306), Jing Quan (307), sealing ring (308), bearing (309), supporting positive cover (310); Wherein, described sand block letter (302), described metal bellows (303), described Compress Spring (304), described moving-coil (305), described antifriction diaphragm seal (306), described Jing Quan (307), described sealing ring (308), described bearing (309) are two groups, the symmetrical upper and lower being arranged on described axis of rotation (301); The shell (202) that described axis of rotation (301) bottom and described eddy current rotate pipe nipple (2) is connected, and top is provided with dentalation; Described axis of rotation (301) is arranged in described supporting positive cover (310), and is supported in the central axis of described supporting positive cover (310) by symmetrically arranged two described bearings (309); Described supporting positive cover (310) upper end is connected with described oil connection (7); What Jing Quan (307) described in two groups was symmetrical is arranged on described axis of rotation (301) outside, and adopt the contrary hand of spiral to be connected to described supporting positive cover (310), one end of described Jing Quan (307) and described bearing (309) end face seal, the other end is provided with described antifriction diaphragm seal (306); What moving-coil (305) described in two groups was symmetrical is arranged on described axis of rotation (301) outside, described moving-coil (305) one end is provided with described antifriction diaphragm seal (306), and the other end is compressed by described metal bellows (303) and described Compress Spring (304); It is outside that described Compress Spring (304) is sleeved on described metal bellows (303), and described moving-coil (305) and described metal bellows (303) are fixedly welded on described axis of rotation (301) with high frequency electric; Often organize described antifriction diaphragm seal (306) and comprise two panels, be arranged between described moving-coil (305) and described Jing Quan (307); Described sand block letter (302) is arranged at the outer end of metal bellows (303) described in two groups, is installed on the annular space between described axis of rotation (301) and described supporting positive cover (310).
3. a kind of construction operation tubing string being applied to petroleum gas engineering according to claim 1 and 2, it is characterized in that, the spiral blade of described turbine (201) is by the fan-shaped spiral assembling structure be processed into 15 ~ 20 degree of central angles; Its spiral angle is 60 ~ 120 degree, and helix length is 1.5 ~ 2 meters, and thickness is preferably 3 ~ 6 millimeters.
4. a kind of construction operation tubing string being applied to petroleum gas engineering according to claim 1 and 2, it is characterized in that, described turbine (201) is aluminum alloy material.
5. a kind of construction operation tubing string being applied to petroleum gas engineering according to claim 1 and 2, it is characterized in that, described turbine (201) is dextrorotation.
6. a kind of construction operation tubing string being applied to petroleum gas engineering according to claim 1 and 2, it is characterized in that, described axis of rotation (301) is provided with solder bath (303a), solder is pre-charged with in described solder bath (303a), after described moving-coil (305), described metal bellows (303) and described Compress Spring (304) are in place, utilize high frequency coil to produce high frequency electric melting solder, make described moving-coil (305), described metal bellows (303) welds with described axis of rotation (301) and seal.
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| CN201510726202.9A CN105221072B (en) | 2015-10-30 | 2015-10-30 | A kind of construction operation tubing string for being applied to petroleum gas engineering |
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| CN201510726202.9A CN105221072B (en) | 2015-10-30 | 2015-10-30 | A kind of construction operation tubing string for being applied to petroleum gas engineering |
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| CN105221072B CN105221072B (en) | 2017-06-13 |
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|---|---|
| CN105221072B (en) | 2017-06-13 |
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