CN105089581A - Downhole flow control device for large-tube-diameter gas well and process method - Google Patents
Downhole flow control device for large-tube-diameter gas well and process method Download PDFInfo
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- CN105089581A CN105089581A CN201510219547.5A CN201510219547A CN105089581A CN 105089581 A CN105089581 A CN 105089581A CN 201510219547 A CN201510219547 A CN 201510219547A CN 105089581 A CN105089581 A CN 105089581A
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Abstract
The invention provides a downhole flow control device for a large-tube-diameter gas well and a process method, and belongs to the technical field of oil-gas field gas production. According to the downhole flow control device, a slip (10) is hung on a fishing neck (5), penetrates through a body (7), and is fixed in a slip groove of the body (7) by a slip hoop (9); a conical seat (11) penetrates through the body (7), a semicircular ring (13) is arranged in the groove of the body (7), the conical seat (11) is fixed on the body (7) by a second dowel (12), and a connection sleeve (14) is in screwed connection with the conical seat (11); an upper outer sleeve (17), a rubber barrel (18) and a lower outer sleeve (19) sequentially penetrate through an inner sleeve (15), and are in screwed connection with the inner sleeve (15) by retaining rings (20), and in screwed connection with the connection sleeve (14) as a whole, at the same time, a telescopic claw of the inner sleeve (15) is clamped in the groove of the connection sleeve (14); and a fishbone buckling ring (21) is in screwed connection with the inner sleeve (15), a central tube (22) is inserted in the fishbone buckling ring (21), and a guide head (23) is in screwed connection with the lower outer sleeve (19).
Description
Technical field
The present invention relates to a kind of Large Diameter Pipeline gas well well flow rate controller and process, belong to oil gas field production gas technology field.
Background technology
In recent years, along with the development of exploration and development technology, the exploitation of unconventional petroleum resources more and more comes into one's own.Volume fracturing, as one of important means transformed unconventional reservoir, also receives publicity more and more.Volume fracturing refer to adopt in hydraulic fracturing process 4.5in pressure break gas production integrated pipe column utilize huge discharge, large sand amount, large liquid measure, low sand ratio injection mode intrinsic fracture is constantly expanded and brittle rock produces shearing slip, form intrinsic fracture and the interlaced fracture network of man-made fracture, thus increase transformation volume, improve initil output and ultimate recovery.
Downhole flow control technology is that the oil nozzle installing certain mouth footpath in down-hole utilizes ground temperature heating prevention of water compound to generate a kind of technology realizing gas well flow-control.For controlling gas well flow, at present, Soviet Union Sulige gas field 4.5in tubing string volume fracturing well adopts the operation pattern of the generation of hole top heating furnace heating prevention of water compound, metering pin valve aperture.This mode of production exists that heating furnace need consume natural gas, is unfavorable for energy-saving and emission-reduction, surface technology is complicated, shortcoming costly.This kind of operation pattern is adopted to be that pressure-bearing is large, not yet has well flow rate controller to realize the control of gas well flow because 4.5in tubing string caliber is large.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of Large Diameter Pipeline gas well well flow rate controller and process.
A kind of Large Diameter Pipeline gas well well flow rate controller and process, containing following steps;
Step 1) one time the outer cartridge of flow control sets step;
During input, connect the outer cartridge of drift flow control with rope tool series winding and this instrument is transferred to design attitude by gas production wellhead, slowly upper rope rope, slips being moved down relative to cone seat and all parts of connecting therewith and stuck in tube inner wall; In continuation, the first pin cut off by rope rope, and dispenser and core bar move with on rope tool string, and when core bar step contacts with interior pipe, lock dog contacts with core bar path and skids off the lock dog groove of inner sleeve, realizes throwing mechanism and moves the flow control mechanism departing from flow control device on the whole; Under the effect of high pressure, lower outside putting moves the realization of compression packing element and tubing seal, meanwhile lower outside cover drive central tube, guide head, back of the body mother, the 3rd pin, valve, sand cap moves and realizes fishbone clasp and central tube lock function.String out outside pit shaft with rope tool, one time the outer cartridge of flow control sets successfully;
Step 2) secondary flow control fuse device sets;
When gas well flow needs to change, with rope tool string connecting secondary flow control fuse device this instrument transferred to a flow control urceolus setting position by gas production wellhead, downward jarring makes secondary flow control fuse device insert an outer cartridge center of flow control, slowly upper rope rope is when pulling force constantly increases, and illustrates that lock dog is to snap in the lock dog groove of an outer cartridge inner sleeve of flow control; Because secondary flow control fuse device length is greater than the outer cartridge of flow control, under when hitting tool string secondary flow control fuse device cut off the 3rd pin valve, sand cap pushed shaft bottom, now valve plays gas well flow-control effect.String out outside pit shaft with rope tool, secondary flow control fuse device sets successfully;
Step 3) salvaging of secondary flow control fuse device;
With rope tool string connecting secondary flow control fuse device Special fishing tool, transfer to secondary flow control fuse setting position by gas production wellhead, downward jarring tool string makes Special fishing tool core bar insert secondary flow control fuse device center and its entirety be arrested, and lock dog compression is departed from the lock dog groove of inner sleeve by Special fishing tool core bar;
String out outside pit shaft with rope tool, secondary flow control fuse device is salvaged successfully;
Step 4) one time the outer cartridge of flow control is salvaged;
Connect blind hammer with rope tool series winding to be transferred to a flow control urceolus setting position and jarring downwards by gas production wellhead, body is relatively bored seat and is moved down and cut off the second pin, body afterbody contacts due to inner sleeve, because the relative inner sleeve telescopic claw of body convex moves down, now inner sleeve telescopic claw can bounce back, and inner sleeve and lower overcoat move down relative to upper overcoat and packing element, and packing element axial distance increases, packing element retraction and oil pipe depressurization, deblocking success; Tool string hits under continuing, and upper outside cuff mantle seat moves down relative to slips, and cone seat and slips depart from, unfreezing success; Blind hammer is changed into the outer special fishing socket of cartridge of flow control again to go into the well, under hit tool string and make an outer special fishing socket of cartridge of flow control arrest fishing neck 5, above carry tool string and trip out outside pit shaft, one time the outer cartridge of flow control is salvaged successfully.
A kind of Large Diameter Pipeline gas well well flow rate controller, is made up of an outer cartridge of flow control and secondary flow control fuse device.
One time the outer cartridge of flow control is made up of dispenser, the first pin, baffle ring, core bar, fishing neck, baffle ring, body, interior pipe, slips hoop, slips, cone seat, the second pin, semicircular ring, adapter sleeve, inner sleeve, lock dog, upper overcoat, packing element, lower overcoat, baffle ring, fishbone clasp, central tube, guide head, back of the body mother, the 3rd pin, valve, sand cap.
Secondary flow control fuse device is made up of body, lock dog, torsion spring, " V " RunddichtringO, linkage section, valve seat, copper packing, valve, valve pressure cap, sand cap.
Slips hangs over also through body on fishing neck, and is fixed in the slip groove of body with slips hoop by slips; Cone seat is through body and by the groove of semicircular ring as body, cone seat is fixed on body by the second pin, adapter sleeve and the screwed connection of cone seat; Upper overcoat, packing element, lower overcoat are successively through inner sleeve by baffle ring and inner sleeve screwed connection, and overall and adapter sleeve screwed connection by it, in the telescopic claw Snap joint grooving of meanwhile inner sleeve; Fishbone clasp and inner sleeve screwed connection, central tube inserts the interior also guide head of fishbone clasp and is connected with lower outside threading, back of the body mother and central tube screwed connection; Valve is filled in central lumen, and sand cap inserts central tube and fixes with the 3rd pin; Lock dog puts into the lock dog groove of pipe, and pipe in core bar is inserted, baffle ring and interior pipe screwed connection, dispenser and core bar screwed connection; By in its above overall insertion body, baffle ring and body screwed connection, the second pin is through baffle ring, body and dispenser, and meanwhile lock dog snaps in the lock dog groove of inner sleeve.
Lock dog, torsion spring are fixed on body by pin; Linkage section through " V " RunddichtringO and with body screwed connection; Valve seat and linkage section screwed connection, copper packing, valve are put into valve seat chamber and are fixed by valve pressure cap and the screwed connection of valve seat; Sand cap and the screwed connection of valve seat.
A kind of Large Diameter Pipeline gas well well flow rate controller, control device comprises: an outer cartridge of flow control, one time the outer cartridge of flow control comprises: sleeve, dispenser assembly and the first valve assembly, sleeve comprises entrance point and the port of export, first valve assembly is arranged on entrance point, first valve assembly is for controlling gas well flow, and dispenser assembly is removably disposed in sleeve inner via the port of export of sleeve; Secondary flow control fuse device, secondary flow control fuse device comprises body and the second valve assembly, body up/down perforation, after dispenser assembly takes out from sleeve, body is removably disposed in sleeve via the port of export of sleeve, second valve assembly is arranged on the one end near the first valve assembly on body, and the second valve assembly is communicated with body interior, and the valve internal diameter of the second valve assembly is less than the valve internal diameter of the first valve assembly.
Further, control device also comprises: retaining mechanism, is arranged between body and sleeve, retaining mechanism has link position and disengaging configuration, when retaining mechanism is positioned at link position, and body and sleeve connection, when retaining mechanism is positioned at disengaging configuration, body is separated with sleeve.
Further, retaining mechanism comprises: lock dog groove, is arranged on the inwall of sleeve; Elastic parts, is arranged on the outer wall of body, has and the primary importance of lock dog groove clamping and the second place that departs from lock dog groove.
Further, elastic parts comprises: lock dog, be arranged on the outer wall of body, lock dog has the swing position that the radial direction towards body swings, lock dog has the highest distance position away from body and the proximal most position near body near one end of the port of export, and when lock dog is in highest distance position near one end of the port of export, lock dog and lock dog slot fit are locked, when lock dog is in proximal most position near one end of the port of export, lock dog and lock dog groove depart from; Torsion spring, is arranged between body and lock dog.
Further, control device also comprises: sealing device, is arranged between body and sleeve.
Further, sealing device be positioned at body outer wall on and arrange near the second valve assembly.
Further, sealing device is " V " RunddichtringO.
Further, the first valve assembly comprises: valve, is connected with the entrance point of sleeve; Sand cap, is set in the outside of valve.
Further, the second valve assembly comprises: valve seat, is connected with the one end near the port of export on body; Valve, is arranged on valve seat; Sand cap, is set in the outside of valve seat.
Further, dispenser assembly comprises: dispenser, is positioned at the port of export of sleeve and removably connects with the port of export; Core bar, is positioned at the inside of sleeve and is connected with dispenser; Interior pipe, be positioned at sleeve inner and removably connect with the inwall of sleeve, core bar is positioned at the inside of pipe and is fixedly connected with pipe.
Beneficial effect of the present invention: although the large required downhole tool of 4.5in tubing string caliber is large, an outer cartridge of flow control and secondary flow control fuse device are all completed to throw in by steel wire operation and salvage; Cartridge center outside a flow control of only secondary flow control fuse device need being inserted when producing of adjusting just can realize adjusting produces; When one time the outer cartridge of flow control cannot be salvaged, its central passage is enough large, does not affect later stage water pumping gas production operation.
Accompanying drawing explanation
When considered in conjunction with the accompanying drawings, by referring to detailed description below, more completely can understand the present invention better and easily learn wherein many adjoint advantages, but accompanying drawing described herein is used to provide a further understanding of the present invention, form a part of the present invention, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention, wherein:
Fig. 1 is a flow control urceolus apparatus structure schematic diagram of the present invention.
Fig. 2 is secondary flow control fuse apparatus structure schematic diagram of the present invention.
Fig. 3 is a flow control urceolus erection seat seal structure schematic diagram of the present invention.
Fig. 4 is the setting schematic diagram of secondary flow control fuse device of the present invention.
Fig. 5 is that the outer cartridge of a flow control of the present invention salvages schematic diagram.
Below in conjunction with drawings and Examples, the present invention is further described.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Obviously, the many modifications and variations that those skilled in the art do based on aim of the present invention belong to protection scope of the present invention.
Embodiment 1: as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, for being unfavorable for energy-saving and emission-reduction, surface technology complexity, shortcoming costly in Soviet Union Sulige gas field 4.5in tubing string volume fracturing well control gas well flow production model, design a kind of construction technology simple, the well flow rate controller that cost is low realizes the control of 4.5in tubing string gas well flow.
One time the outer cartridge of flow control is made up of dispenser 1, first pin 2, baffle ring 3, core bar 4, fishing neck 5, baffle ring 6, body 7, interior pipe 8, slips hoop 9, slips 10, cone seat 11, second pin 12, semicircular ring 13, adapter sleeve 14, inner sleeve 15, lock dog 16, upper overcoat 17, packing element 18, lower overcoat 19, baffle ring 20, fishbone clasp 21, central tube 22, guide head 23, female 24, the 3rd pin 25 of the back of the body, valve 26, sand cap 27.
Slips 10 hangs over also through body 7 on fishing neck 5, and is fixed in the slip groove of body 7 with slips hoop 9 by slips 10; Cone seat 11 is through body 7 and by the groove of semicircular ring 13 as body 7, cone seat 11 is fixed on body 7 by the second pin 12, adapter sleeve 14 and the screwed connection of cone seat 11; Upper overcoat 17, packing element 18, lower overcoat 19 are successively through inner sleeve 15 and by baffle ring 20 and inner sleeve 15 screwed connection, and by its entirety and adapter sleeve 14 screwed connection, meanwhile the telescopic claw Snap joint of inner sleeve 15 overlaps in 14 grooves; Fishbone clasp 21 and inner sleeve 15 screwed connection, central tube 22 inserts also guide head 23 and the screwed connection of lower overcoat 19 in fishbone clasp 21, the back of the body female 24 and central tube 22 screwed connection; Valve 26 is filled in central tube 22 chamber, and sand cap 27 inserts central tube 22 and fixes with the 3rd pin 25; Lock dog 16 puts into the lock dog groove of pipe 8, and core bar 4 is inserted interior pipe 8, baffle ring 6 and the screwed connection of interior pipe 8, dispenser 1 and core bar 4 screwed connection; By in its above overall insertion body 7, baffle ring 3 and body 7 screwed connection, the second pin 12 is through baffle ring 3, body 7 and dispenser 1, and meanwhile lock dog 16 snaps in the lock dog groove of inner sleeve 15.
Secondary flow control fuse device is made up of body 28, lock dog 29, torsion spring 30, " V " RunddichtringO 31, linkage section 32, valve seat 33, copper packing 34, valve 35, valve pressure cap 36, sand cap 37.
Secondary flow control fuse device is achieved in that lock dog 29, torsion spring 30 are fixed on body 28 by pin; Linkage section 32 through " V " RunddichtringO 31 and with body 28 screwed connection; Valve seat 33 and linkage section 32 screwed connection, copper packing 34, valve 35 are put into valve seat 33 chamber and are fixed by valve pressure cap 36 and valve seat 33 screwed connection; Sand cap 37 and valve seat 33 screwed connection.
An outer cartridge of flow control and secondary flow control fuse device are all completed to throw in by steel wire operation and salvage.
4.5in tubing string caliber is large, and pressure-bearing is large, and outside a flow control, cartridge salvaging difficulty is large, and secondary flow control fuse device pressure-bearing little Yi salvages, and cartridge center outside a flow control of only secondary flow control fuse device need being inserted when producing of adjusting just can realize tune and produce.
When one time the outer cartridge of flow control cannot be salvaged, its central passage is enough large, does not affect later stage water pumping gas production operation, as coiled tubing is passed through at center.
Central tube 22 is processed with fishbone button, central tube 22 can only move up relative to fishbone clasp 21 and can not move down.
During the outer cartridge of the flow control of jarring downward or upward, the convex that body 7 contacts inner sleeve 15 telescopic claw all can misplace with inner sleeve 15 telescopic claw and inner sleeve 15 telescopic claw is bounced back, and finally realizes packing element 18 deblocking.
Embodiment 2: as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5,
An outer cartridge of flow control and secondary flow control fuse device are all completed to throw in by steel wire operation and salvage.
4.5in tubing string caliber is large, and pressure-bearing is large, and outside a flow control, cartridge salvaging difficulty is large, and secondary flow control fuse device pressure-bearing little Yi salvages, and cartridge center outside a flow control of only secondary flow control fuse device need being inserted when producing of adjusting just can realize tune and produce.
When one time the outer cartridge of flow control cannot be salvaged, its central passage is enough large, does not affect later stage water pumping gas production operation, as coiled tubing is passed through at center.
Central tube 22 is processed with fishbone button, central tube 22 can only move up relative to fishbone clasp 21 and can not move down.
During the outer cartridge of the flow control of jarring downward or upward, the convex that body 7 contacts inner sleeve 15 telescopic claw all can misplace with inner sleeve 15 telescopic claw and inner sleeve 15 telescopic claw is bounced back, and finally realizes packing element 18 deblocking.
Outside (1) flow control that the present invention mainly comprises, cartridge sets (2) secondary flow control fuse device and sets the outer cartridges salvaging of (3) secondary flow control fuse device salvaging (4) flow controls.
(1) one time the outer cartridge of flow control sets
During input, connect the outer cartridge of drift flow control with rope tool series winding and this instrument is transferred to design attitude by gas production wellhead, slowly upper rope rope, slips 10 being moved down relative to cone seat 11 and all parts of connecting therewith and stuck in tube inner wall; In continuation, the first pin 2 cut off by rope rope, dispenser 1 and core bar 4 move with on rope tool string, when core bar 4 step contacts with interior pipe 8, lock dog 16 contacts with core bar 4 path and skids off the lock dog groove of inner sleeve 15, realizes throwing mechanism and moves the flow control mechanism departing from flow control device on the whole; Under the effect of high pressure, lower overcoat 19 moves compression packing element 18 to realize and tubing seal, meanwhile descend overcoat 19 to drive central tube 22, guide head 23, female 24, the 3rd pin 25 of the back of the body, valve 26, sand cap 27 move realizing fishbone clasp 21 and central tube 22 lock function.String out outside pit shaft with rope tool, one time the outer cartridge of flow control sets successfully.
(2) secondary flow control fuse device sets
When gas well flow needs to change, with rope tool string connecting secondary flow control fuse device this instrument transferred to a flow control urceolus setting position by gas production wellhead, downward jarring makes secondary flow control fuse device insert an outer cartridge center of flow control, slowly upper rope rope is when pulling force constantly increases, and illustrates that lock dog 29 is to snap in the lock dog groove of an outer cartridge inner sleeve 15 of flow control; Because secondary flow control fuse device length is greater than the outer cartridge of flow control, under when hitting tool string secondary flow control fuse device cut off the 3rd pin 25 valve 26, sand cap 27 pushed shaft bottom, now valve 35 plays gas well flow-control effect.String out outside pit shaft with rope tool, secondary flow control fuse device sets successfully.
(3) secondary flow control fuse device is salvaged
With rope tool string connecting secondary flow control fuse device Special fishing tool, transfer to secondary flow control fuse setting position by gas production wellhead, downward jarring tool string makes Special fishing tool core bar insert secondary flow control fuse device center and its entirety be arrested, and lock dog 29 is compressed the lock dog groove departing from inner sleeve 15 by Special fishing tool core bar.
String out outside pit shaft with rope tool, secondary flow control fuse device is salvaged successfully.
(4) one times the outer cartridge of flow control is salvaged
Connect blind hammer with rope tool series winding to be transferred to a flow control urceolus setting position and jarring downwards by gas production wellhead, body 7 relatively cone seat 11 moves down and cuts off the second pin 12, body 7 afterbody contacts due to inner sleeve 15, because body 7 convex relative inner sleeve 15 telescopic claw moves down, now inner sleeve 15 telescopic claw can bounce back, and inner sleeve 15 and lower overcoat 19 move down relative to upper overcoat 17 and packing element 18, and packing element 18 axial distance increases, packing element 18 bounces back and oil pipe depressurization, deblocking success; Tool string hits under continuing, and upper overcoat 17 is with mantle seat 11 to move down relative to slips 10, and cone seat 11 departs from slips 10, unfreezing success; Blind hammer is changed into the outer special fishing socket of cartridge of flow control again to go into the well, under hit tool string an outer special fishing socket of cartridge of flow control arrested
Fishing neck 5, above carries tool string and trips out outside pit shaft, and one time the outer cartridge of flow control is salvaged successfully.
As mentioned above, embodiments of the invention are explained, but as long as do not depart from inventive point of the present invention in fact and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, such variation is also all included within protection scope of the present invention.
Claims (14)
1. a Large Diameter Pipeline gas well downhole flow Controlling Technology method, is characterized in that containing following steps;
Step 1), the outer cartridge of flow control sets step;
During input, connect the outer cartridge of drift flow control with rope tool series winding and this instrument is transferred to design attitude by gas production wellhead, slowly upper rope rope, makes slips (10) move down relative to cone seat (11) and all parts of connecting therewith and stuck in tube inner wall; In continuation, the first pin (2) cut off by rope rope, dispenser (1) and core bar (4) move with on rope tool string, when core bar (4) step contacts with interior pipe (8), lock dog (16) contacts with core bar (4) path and skids off the lock dog groove of inner sleeve (15), realizes throwing mechanism and moves the flow control mechanism departing from flow control device on the whole; Under the effect of high pressure, lower overcoat (19) is moved compression packing element (18) to realize and tubing seal, meanwhile descend overcoat (19) to drive central tube (22), guide head (23), the back of the body female (24), the 3rd pin (25), valve (26), sand cap (27) move realizing fishbone clasp (21) and central tube (22) lock function.String out outside pit shaft with rope tool, one time the outer cartridge of flow control sets successfully;
Step 2), secondary flow control fuse device sets;
When gas well flow needs to change, with rope tool string connecting secondary flow control fuse device this instrument transferred to a flow control urceolus setting position by gas production wellhead, downward jarring makes secondary flow control fuse device insert an outer cartridge center of flow control, slowly upper rope rope is when pulling force constantly increases, and illustrates that lock dog (29) is to snap in the lock dog groove of an outer cartridge inner sleeve (15) of flow control; Because secondary flow control fuse device length is greater than an outer cartridge of flow control, under when hitting tool string secondary flow control fuse device cut off the 3rd pin (25) valve (26), sand cap (27) pushed shaft bottom, now valve (35) plays gas well flow-control effect.String out outside pit shaft with rope tool, secondary flow control fuse device sets successfully;
Step 3), secondary flow control fuse device salvage;
With rope tool string connecting secondary flow control fuse device Special fishing tool, transfer to secondary flow control fuse setting position by gas production wellhead, downward jarring tool string makes Special fishing tool core bar insert secondary flow control fuse device center and its entirety be arrested, and lock dog (29) compression is departed from the lock dog groove of inner sleeve (15) by Special fishing tool core bar;
String out outside pit shaft with rope tool, secondary flow control fuse device is salvaged successfully;
Step 4), the outer cartridge of flow control salvages;
Connect blind hammer with rope tool series winding to be transferred to a flow control urceolus setting position and jarring downwards by gas production wellhead, body (7) is relatively bored seat (11) and is moved down and cut off the second pin (12), body (7) afterbody is due to inner sleeve (15) contact, because body (7) convex relative inner sleeve (15) telescopic claw moves down, now inner sleeve (15) telescopic claw can bounce back, inner sleeve (15) and lower overcoat (19) move down relative to upper overcoat (17) and packing element (18), packing element (18) axial distance increases, packing element (18) retraction and oil pipe depressurization, deblocking success, tool string hits under continuing, and upper overcoat (17) band movable cone (11) moves down relative to slips (10), and cone (11) and slips (10) depart from, unfreezing success, blind hammer is changed into the outer special fishing socket of cartridge of flow control again to go into the well, under hit tool string and make an outer special fishing socket of cartridge of flow control arrest fishing neck (5), above carry tool string and trip out outside pit shaft, one time the outer cartridge of flow control is salvaged successfully.
2. a Large Diameter Pipeline gas well well flow rate controller, is characterized in that being made up of an outer cartridge of flow control and secondary flow control fuse device;
An outer cartridge of flow control is by dispenser (1), first pin (2), baffle ring (3), core bar (4), fishing neck (5), baffle ring (6), body (7), interior pipe (8), slips hoop (9), slips (10), cone seat (11), second pin (12), semicircular ring (13), adapter sleeve (14), inner sleeve (15), lock dog (16), upper overcoat (17), packing element (18), lower overcoat (19), baffle ring (20), fishbone clasp (21), central tube (22), guide head (23), the back of the body female (24), 3rd pin (25), valve (26), sand cap (27) forms,
Secondary flow control fuse device is made up of body (28), lock dog (29), torsion spring (30), " V " RunddichtringO (31), linkage section (32), valve seat (33), copper packing (34), valve (35), valve pressure cap (36), sand cap (37).
3. a kind of Large Diameter Pipeline gas well well flow rate controller according to claim 2, it is characterized in that slips (10) hangs over fishing neck (5) and goes up and pass body (7), and with slips hoop (9), slips (10) is fixed in the slip groove of body (7); Cone seat (11) is through body (7) and by the groove of semicircular ring (13) as body (7), second pin (12) will be bored seat (11) and will be fixed on body (7), adapter sleeve (14) and cone seat (11) screwed connection; Upper overcoat (17), packing element (18), lower overcoat (19) are successively through inner sleeve (15) and by baffle ring (20) and inner sleeve (15) screwed connection, it is overall with adapter sleeve (14) screwed connection, in telescopic claw Snap joint cover (14) groove of meanwhile inner sleeve (15); Fishbone clasp (21) and inner sleeve (15) screwed connection, central tube (22) inserts also guide head (23) and the screwed connection of lower overcoat (19) in fishbone clasp (21), the back of the body female (24) and central tube (22) screwed connection; Valve (26) is filled in central tube (22) chamber, and sand cap (27) inserts central tube (22) and fixes with the 3rd pin (25); Lock dog (16) puts into the lock dog groove of pipe (8), and pipe (8) in core bar (4) is inserted, baffle ring (6) and interior pipe (8) screwed connection, dispenser (1) and core bar (4) screwed connection; By in its above overall insertion body (7), baffle ring (3) and body (7) screwed connection, first pin (2) is through baffle ring (3), body (7) and dispenser (1), and meanwhile lock dog (16) snaps in the lock dog groove of inner sleeve (15).
4. a kind of Large Diameter Pipeline gas well well flow rate controller according to claim 2, is characterized in that lock dog (29), torsion spring (30) are fixed on body (28) by pin; Linkage section (32) through " V " RunddichtringO (31) and with body (28) screwed connection; Valve seat (33) and linkage section (32) screwed connection, copper packing (34), valve (35) are put into valve seat (33) chamber and are fixed by valve pressure cap (36) and valve seat (33) screwed connection; Sand cap (37) and valve seat (33) screwed connection.
5. a Large Diameter Pipeline gas well well flow rate controller, is characterized in that, described control device comprises:
An outer cartridge of flow control, the outer cartridge of a described flow control comprises: sleeve, dispenser assembly and the first valve assembly, described sleeve comprises entrance point and the port of export, described first valve assembly is arranged on described entrance point, described first valve assembly is for controlling gas well flow, and described dispenser assembly is removably disposed in described sleeve inner via the port of export of described sleeve;
Secondary flow control fuse device, described secondary flow control fuse device comprises body (28) and the second valve assembly, described body (28) up/down perforation, after described dispenser assembly takes out from described sleeve, described body (28) is removably disposed in described sleeve via the port of export of described sleeve, described second valve assembly is arranged on the upper one end near described first valve assembly of described body (28), described second valve assembly is communicated with described body (28) inside, the valve internal diameter of described second valve assembly is less than the valve internal diameter of described first valve assembly.
6. Large Diameter Pipeline gas well well flow rate controller according to claim 5, it is characterized in that, described control device also comprises:
Retaining mechanism, be arranged between described body (28) and described sleeve, described retaining mechanism has link position and disengaging configuration, when described retaining mechanism is positioned at described link position, described body (28) and described sleeve connection, when described retaining mechanism is positioned at described disengaging configuration, described body (28) is separated with described sleeve.
7. Large Diameter Pipeline gas well well flow rate controller according to claim 6, it is characterized in that, described retaining mechanism comprises:
Lock dog groove, is arranged on the inwall of described sleeve;
Elastic parts, is arranged on the outer wall of described body (28), has and the primary importance of described lock dog groove clamping and the second place that departs from described lock dog groove.
8. Large Diameter Pipeline gas well well flow rate controller according to claim 7, it is characterized in that, described elastic parts comprises:
Lock dog (29), be arranged on the outer wall of described body (28), described lock dog (29) has the swing position that the radial direction towards described body (28) swings, the upper one end near the described port of export of described lock dog (29) has the highest distance position away from described body (28) and the proximal most position near described body (28), when the upper one end near the described port of export of described lock dog (29) is in described highest distance position, described lock dog (29) and described lock dog slot fit are locked, when the upper one end near the described port of export of described lock dog (29) is in described proximal most position, described lock dog (29) and described lock dog groove depart from,
Torsion spring (30), is arranged between described body (28) and described lock dog (29).
9. Large Diameter Pipeline gas well well flow rate controller according to claim 5, it is characterized in that, described control device also comprises:
Sealing device, is arranged between described body (28) and described sleeve.
10. Large Diameter Pipeline gas well well flow rate controller according to claim 9, is characterized in that, the outer wall that described sealing device is positioned at described body (28) is arranged near described second valve assembly.
11. Large Diameter Pipeline gas well well flow rate controllers according to claim 9, is characterized in that, described sealing device is " V " RunddichtringO (31).
12. Large Diameter Pipeline gas well well flow rate controllers according to any one of claim 5 to 11, it is characterized in that, described first valve assembly comprises:
Valve (26), is connected with the entrance point of described sleeve;
Sand cap (27), is set in the outside of described valve (26).
13. Large Diameter Pipeline gas well well flow rate controllers according to any one of claim 5 to 11, it is characterized in that, described second valve assembly comprises:
Valve seat (33), is connected with the upper one end near the described port of export of described body (28);
Valve (35), is arranged on described valve seat (33);
Sand cap (37), is set in the outside of described valve seat (33).
14. Large Diameter Pipeline gas well well flow rate controllers according to any one of claim 5 to 11, it is characterized in that, described dispenser assembly comprises:
Dispenser (1), is positioned at the port of export of described sleeve and removably connects with the described port of export;
Core bar (4), is positioned at the inside of described sleeve and is connected with described dispenser (1);
Interior pipe (8), is positioned at described sleeve inner and removably connects with the inwall of described sleeve, and described core bar (4) is positioned at the inside of described pipe (8) and is fixedly connected with described pipe (8).
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| CN201510219547.5A CN105089581B (en) | 2014-05-14 | 2015-05-01 | A kind of Large Diameter Pipeline gas well well flow rate controller and process |
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| CN201510219547.5A CN105089581B (en) | 2014-05-14 | 2015-05-01 | A kind of Large Diameter Pipeline gas well well flow rate controller and process |
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| CN108343404A (en) * | 2018-02-08 | 2018-07-31 | 中国石油天然气股份有限公司 | A kind of natural gas well intelligence flow controller |
| CN108733012A (en) * | 2017-04-18 | 2018-11-02 | 气体产品与化学公司 | Meet the control system of production equipment energy consumption limitation in industrial gasses piping network |
| CN109594956A (en) * | 2018-11-29 | 2019-04-09 | 四川圣诺油气工程技术服务有限公司 | A kind of dissolvable formula underground throttle device |
| CN109838219A (en) * | 2017-11-24 | 2019-06-04 | 李立 | Well head tolerance automatic adjusting control device and gas well Two production well testing method |
| CN113431539A (en) * | 2021-07-05 | 2021-09-24 | 湖北茂思晟石油新技术开发有限公司 | Throwing-fishing type cableless concentric intelligent water distributor device |
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| CN105089581B (en) | 2018-08-14 |
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