CN112554813B - Continuous concentric tube roller device and method - Google Patents
Continuous concentric tube roller device and method Download PDFInfo
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- CN112554813B CN112554813B CN202011427730.1A CN202011427730A CN112554813B CN 112554813 B CN112554813 B CN 112554813B CN 202011427730 A CN202011427730 A CN 202011427730A CN 112554813 B CN112554813 B CN 112554813B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/14—Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/14—Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole
- E21B19/146—Carousel systems, i.e. rotating rack systems
Abstract
The invention relates to a continuous concentric tube roller device and a method, belonging to the technical field of petroleum machinery. The technical scheme is as follows: roller drive assembly (2) and binary channels high pressure manifold (6) set up on roller base (1), and the one end of annular space high pressure manifold passageway (61) and inner tube high pressure manifold passageway (63) communicates with continuous concentric tube outer tube (1201) and continuous concentric tube inner tube (1202) respectively, and the other end is connected with outside pump sending and flow back equipment respectively, forms independent dynamic pump and goes into passageway and flow back the passageway. The invention has the following positive effects: through the double-channel high-pressure manifold, the effective connection and sealing of the continuous concentric tube annulus, the inner tube of the continuous concentric tube and the high-pressure manifold of the roller device are realized, independent pump-in and flow-back channels between the roller device and the continuous concentric tube are established, the connection of the continuous concentric tube and ground pumping and flow-back equipment is established through the roller device, and various underground operation requirements of the continuous concentric tube can be met.
Description
Technical Field
The invention relates to a continuous concentric tube roller device and a method, belonging to the technical field of petroleum machinery.
Background
The roller device is an important component of coiled tubing operation equipment, is used for storing and accommodating the coiled tubing, is matched with an injection head to complete the running-in and running-out operation of the coiled tubing, and establishes a dynamic connection channel of an external pumping device and an operation medium between the coiled tubing, so that various downhole operations such as fracturing, drilling, sand washing, gas lift, well logging, well workover, gathering, acidification, oil testing, gas production, well completion and the like are completed, and the perfection degree of the functions of the roller device determines the performance of the whole coiled tubing operation equipment.
With the annual exploitation of oil and gas wells, the stratum is voided, the negative pressure is serious, acid liquor cannot be discharged in time, well killing fluid pollutes the production layer, sand is accumulated in a shaft, and the like, so that the production is reduced and even stopped. The liquid and accumulated sand in the well are discharged, the jet negative pressure liquid discharging and negative pressure sand washing technology is needed to be adopted, according to the jet pump principle, the liquid and accumulated sand in the well shaft are discharged by utilizing the suction force generated by high-speed jet, however, the technology needs to establish an independent pump-in and flow-back channel, the continuous concentric tube, the matched roller device and the underground tool can be completed, at present, the continuous tube roller in the prior art can only wind a single-channel continuous tube, the rotary joint and the high-pressure manifold only have one channel, and the existing continuous tube roller device can not meet the operation requirement of the continuous concentric tube. Therefore, the development of a roller device compatible with the function of continuous concentric tubes is a technical problem to be solved in the field.
Disclosure of Invention
The invention aims to provide a continuous concentric tube roller device and a method, which realize the effective connection and sealing of the continuous concentric tube annulus, an inner tube and the roller device high-pressure manifold through a double-channel high-pressure manifold, establish independent pumping and flowback channels between the roller device and the continuous concentric tube, and establish the connection between the continuous concentric tube and ground pumping and flowback equipment through the roller device.
The technical scheme of the invention is as follows:
a continuous concentric tube roller device at least comprises a roller base, roller drive assembly and binary channels high-pressure manifold, roller drive assembly and binary channels high-pressure manifold set up on the cylinder base, roller drive assembly is hydraulic motor drive connection right angle speed reducer, the right angle speed reducer passes through the drive sprocket drive and connects the cylinder body, binary channels high-pressure manifold contains annular space high-pressure manifold passageway and inner tube high-pressure manifold passageway, continuous concentric tube is the annular sleeve structure who comprises continuous concentric tube outer tube and continuous concentric tube inner tube that arrange with one heart, the center of annular sleeve structure is the hollow tube, the outside of hollow tube is the annular space pipe, annular space high-pressure manifold passageway and inner tube high-pressure manifold passageway's one end communicates with continuous concentric tube outer tube and continuous concentric tube inner tube respectively, the other end is connected with outside pump sending and flowback equipment respectively, form independent dynamic pump and go into passageway and flowback passageway.
The drum drive assembly includes: the device comprises a roller body, a left half shaft, a right half shaft, a left bearing seat, a right bearing seat, a left mounting seat, a right mounting seat, a driving chain wheel, a driven chain wheel, a chain wheel shield, a right-angle speed reducer, a speed reducer base, a hydraulic motor and the like; the left half shaft and the right half shaft are respectively arranged on the left side and the right side of the roller body and are of hollow structures, the left half shaft and the right half shaft are respectively supported on a left bearing seat and a right bearing seat, the left bearing seat and the right bearing seat are respectively fixed on a left mounting seat and a right mounting seat, the left mounting seat and the right mounting seat are respectively fixed on a roller base through bolts, heavy-load self-aligning roller bearings are respectively arranged in the left bearing seat and the right bearing seat, and two ends of the roller body are respectively arranged on the left half shaft and the right half shaft; the right-angle speed reducer and the hydraulic motor are fixed on the left mounting seat through the speed reducer base, and the left mounting seat is provided with a strip hole for regularly adjusting the center distance between the driving chain wheel and the driven chain wheel and ensuring that the chain is properly tensioned; the driving chain wheel is connected with the output shaft of the right-angle speed reducer through a spline, and the driven chain wheel is fixed on the left half shaft and rotates coaxially with the roller body.
The high-pressure pipe fitting of each channel comprises a rotating part arranged in the roller body and a fixed part fixed on the roller base, and each channel is provided with a high-pressure rotating joint; the annular high pressure manifold passage, high pressure pipe fitting include: the device comprises a 90-degree elbow, a plug valve, a T-shaped tee joint, a pressure sensor, a high-pressure flowmeter, a union plug, a movable elbow, a high-pressure rotary joint, a right rotary joint seat, a pressure relief needle valve, a high-pressure straight pipe A, an angle type T-shaped tee joint and a penetrating type high-pressure sealing device; the inner tube high pressure manifold passageway, high-pressure pipe fitting contain: the device comprises a 90-degree elbow, a plug valve, a T-shaped tee joint, a pressure sensor, a high-pressure flowmeter, a union plug, a movable elbow, a high-pressure rotary joint, a left-handed rotary joint seat, a pressure relief needle valve, a high-pressure straight pipe B, a high-pressure straight pipe C, a through type high-pressure sealing device and a high-pressure straight pipe D. A rotary joint seat is coaxially arranged in each of the left half shaft and the right half shaft, namely a left rotary joint seat and a right rotary joint seat (a high-pressure channel is arranged in the left half shaft and the right half shaft, one end of the channel is of a flange structure, and the other end of the channel is an FIG1502 union), the flange ends of the left rotary joint seat and the right rotary joint seat are respectively connected with the rotating parts of the high-pressure rotary joints of the two channels, and the other ends of the left rotary joint seat and the right rotary joint seat are respectively connected with the rotating parts of the two manifold channels in the roller body through the FIG1502 union; the tail end of the annular high-pressure manifold channel in the roller body is connected with the continuous concentric tube outer tube of the continuous concentric tube through one interface of an angle type T-shaped tee joint (the continuous concentric tube outer tube of the continuous concentric tube is provided with a FIN 1502 union), the continuous concentric tube inner tube penetrates through the angle type T-shaped tee joint and penetrates out from the other interface, and the annular space of the continuous concentric tube is reliably sealed through a penetrating type high-pressure sealing device (provided with a FIN 1502 union and connected with the tee joint at the penetrating position of the continuous concentric tube inner tube); after the inner pipe of the continuous concentric pipe penetrates out, installing another set of penetrating type high-pressure sealing device at the tail end of the inner pipe of the continuous concentric pipe; the through high-pressure sealing device is arranged at the tail end of an opening of the inner pipe high-pressure manifold channel in the roller body and is connected through a 90-degree elbow.
The fixed parts of the high-pressure pipe fittings of the annular high-pressure manifold channel and the inner pipe high-pressure manifold channel on the roller base are respectively connected to the fixed ends of the two high-pressure rotary joints through two movable elbows, and the two high-pressure channels are of a double-inlet structure (the joints are FIG1502 female union): one of the inlets needs to pass through a high-pressure flow meter for passing through a liquid medium with low viscosity and density; the other inlet is not passed through the high pressure flow meter and is used for passing through the gas medium. The output pipeline of the external pumping equipment and the input pipeline of the flow-back equipment are respectively connected with two or one interface (90-degree elbow) of the annular high-pressure manifold channel and the inner pipe high-pressure manifold channel outside the roller, so that independent and dynamic pumping and flow-back connection channels between the roller device and the continuous concentric pipe annular space and between the roller device and the continuous concentric pipe inner pipe are established, and the underground operation requirement of the continuous concentric pipe is met.
The high-pressure rotary joint is used for realizing the dynamic connection between a rotating high-pressure part in the roller body and a fixed high-pressure part on the roller base, and the pressure sensor and the high-pressure flowmeter are respectively used for measuring the pressure and the flow of an operation medium; the movable elbow plays a role in buffering high-pressure fluid during operation; the pressure relief needle valve is used for unloading; the penetrating type high-pressure sealing device plays a role in sealing the continuous concentric tube annulus and the continuous concentric tube inner tube, plays a role in clamping and suspending the continuous concentric tube inner tube, and prevents the continuous concentric tube inner tube from sliding under the action of gravity after the continuous concentric tube is lowered into the well. The rotating part of the inner pipe high-pressure manifold channel in the roller body is fixed in the roller body through a high-strength support, and the self weight of the inner pipe of the continuous concentric pipe can be borne after the continuous concentric pipe is completely put into the well.
The pass-through high pressure seal device comprises: the device comprises an airfoil nut, a union joint, a compression bolt II, a riveting pin sleeve, an extrusion ring, a concave rubber core and a convex rubber core; the union joint is tubular, a boss I is arranged on the outer edge of one end of the union joint, the tubular inner cavity is divided into a tube cavity I and a tube cavity II, a rivet pin and a rivet pin sleeve which are matched with each other are arranged in the tube cavity I, and the end part of the union joint is pressed on the rivet pin through a pressing bolt I; the second pipe cavity is internally provided with an extrusion ring, a concave rubber core and a convex rubber core which are matched with each other, two ends of the matched rubber core are respectively provided with one extrusion ring, the end parts of the matched rubber cores are tightly pressed against the extrusion rings through a second compression bolt, and an O-shaped ring is arranged between each extrusion ring and the second pipe cavity; a sealable channel is formed in the union joint by the compression bolt II, the rivet pin sleeve, the extrusion ring, the concave rubber core and the convex rubber core; the inner hole of the wing nut is provided with a boss II which is matched with the boss I on the outer edge of the end part of the union joint.
The middle part of the second pipe cavity is provided with a threaded hole, a check ring is arranged in the threaded hole, the check ring is provided with an annular groove and a plurality of radial holes and used for evenly injecting sealing media in the circumferential direction, the check ring divides the second pipe cavity into two parts, the internal structures of the two parts are the same, each part is provided with an extrusion ring, a concave rubber core and a convex rubber core, the concave rubber cores and the convex rubber cores are matched with each other, and two ends of each group of matched rubber cores are respectively provided with one extrusion ring.
The penetrating type high-pressure sealing device is connected and sealed with the annular high-pressure manifold channel and the inner pipe high-pressure manifold channel by adopting union, and the inner pipe of a continuous concentric pipe penetrates through the penetrating type high-pressure sealing device; the extrusion ring is compressed through the second compression bolt, the convex rubber core and the concave rubber core are compressed, the rubber core is extruded to the inner pipe and the inner wall of the union joint after being deformed under pressure, and reliable sealing can be achieved, and the extrusion ring is sealed with the inner hole of the union joint through an O-shaped ring.
At the union end, the riveting pin is the fin formula structure, and the inner wall has the thread, and the riveting pin is conical surface cooperation with the riveting pin cover within a definite time, extrudees the riveting pin through housing bolt one, for the riveting pin cover produces axial displacement, conical surface cooperation makes the riveting pin fin produce adduction formula deformation to lock continuous concentric tube inner tube, the thread of riveting pin inner wall plays the effect of increase coefficient of friction, the weight of whole root continuous concentric tube inner tube can be born to the frictional grip who its produces, continuous concentric tube inner tube takes place to slide under the action of gravity after preventing that continuous concentric tube is whole to drop into the well.
A liquid and sand discharging method of a continuous concentric tube roller device adopts the continuous concentric tube roller device and comprises the following steps:
the whole circulation process of the pumping and the backflow channels is as follows: the output pipeline of the external pumping equipment is connected with two or one 90-degree elbow of the fixed part of the annular high-pressure manifold channel: if the pumped medium is gas, connecting an inlet channel which does not pass through the high-pressure flowmeter, and closing the plug valve which passes through the inlet channel of the high-pressure flowmeter; if the pumped medium is light liquid with low viscosity, an inlet channel passing through the high-pressure flowmeter needs to be connected, and a plug valve which does not pass through the inlet channel of the high-pressure flowmeter is closed; the medium enters a movable elbow through a T-shaped tee joint after entering, then enters a high-pressure rotary joint, enters a rotating part of an annular high-pressure manifold channel in a roller body through a right rotary joint seat, enters an annular channel between inner and outer pipes of a continuous concentric pipe after respectively passing through the T-shaped tee joint, a high-pressure straight pipe A, a 90-degree elbow, a plug valve, the 90-degree elbow and an angle type T-shaped tee joint, enters a jet tool at the tail end in the continuous concentric pipe, enters an inner pipe tool through annular nozzle high-pressure jet, generates negative pressure in a suction section of the inner pipe tool, sucks liquid or accumulated sand in a well into the suction section of the inner pipe tool, then enters the inner pipe of the continuous concentric pipe after being accelerated by a throat pipe, and lifts the mixed medium in the well to the ground under the action of high-speed and high-pressure medium flow.
The mixed medium is returned to the ground through a continuous concentric tube inner tube and then enters a rotating part of an inner tube high-pressure manifold channel in the roller body through a through type high-pressure sealing device connected with the inner tube, sequentially passes through a 90-degree elbow, a plug valve, a T-shaped tee joint, a high-pressure straight tube D, a 90-degree elbow, a high-pressure straight tube C and a left-handed rotary joint seat, enters a fixed part of the inner tube high-pressure manifold channel after being led out from the high-pressure rotary joint, sequentially enters a movable elbow, a high-pressure straight tube B, 2 90-degree elbows and the T-shaped tee joint, is the same as a pumping channel, whether the mixed medium passes through a channel with a high-pressure flowmeter or not is selected according to the medium condition, another channel is closed, and the medium is discharged to an external container through the plug valve, the 90-degree elbow and the ground channel.
The present invention also includes: the device comprises a pipe arrangement system, a guiding and lubricating system, a counting system, a suspension arm, a transportation base, a steel wire rope lifting appliance, a video monitoring device and a hydraulic partition plate/electrical junction box, wherein the transportation base is arranged below the roller base, and the suspension arm and the steel wire rope lifting appliance are arranged on the roller base.
The invention has the following positive effects: through the double-channel high-pressure manifold, the effective connection and sealing of the continuous concentric tube annulus, the inner tube of the continuous concentric tube and the high-pressure manifold of the roller device are realized, independent pumping and flowback channels between the roller device and the continuous concentric tube are established, and the connection of the continuous concentric tube and ground pumping and flowback equipment is established through the roller device, so that various underground operation requirements of the continuous concentric tube can be met. The continuous concentric tube roller device has good compatibility, and can be used for not only continuous concentric tube operation, but also various underground operations of common single continuous tube.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic perspective view of an embodiment of the present invention;
FIG. 3 is a schematic view of a roller drive assembly according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a dual channel high pressure manifold configuration according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of an annular high pressure manifold channel configuration according to an embodiment of the invention;
FIG. 6 is a schematic diagram of an inner tube high pressure manifold channel configuration according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a pass-through high pressure seal according to an embodiment of the present invention;
FIG. 8 is a schematic illustration of an embodiment of the present invention in connection with a downhole tool;
in the figure: 1-roller base, 2-roller drive assembly, 201-right mount, 202-right bearing block, 203-right half shaft, 204-roller body, 205-left bearing block, 206-left mount, 207-chain, 208-driven sprocket, 209-left half shaft, 210-hydraulic motor, 211-right-angle reducer, 212-drive sprocket, 213-sprocket guard, 214-reducer base, 3-exhaust pipe system, 4-guide and lubrication system, 5-counting system, 6-double channel high pressure manifold, 61-annular high pressure manifold channel, 611-wing nut, 612-union joint, 613-rivet pin, 614-rivet pin sleeve, 615-plug, 616-retainer ring, 617-convex rubber core, 618-concave rubber core, 619-an extrusion ring, 620-an O-shaped ring, 621-a compression bolt II, 6101-90-degree elbow, 6102-a plug valve, 6103-a T-shaped tee, 6104-a pressure sensor, 6105-a high-pressure flowmeter, 6106-a union plug, 6107-a movable elbow, 6108-a high-pressure rotary joint, 6109-a right rotary joint seat, 6110-a pressure relief needle valve, 6111-a high-pressure straight pipe A, 6112-an angle T-shaped tee, 6113-a traversing high-pressure sealing device, 62-an annular high-pressure manifold bracket, 63-an inner pipe high-pressure manifold channel, 6309-a left rotary joint seat, 6311-a high-pressure straight pipe B, 6312-a high-pressure straight pipe C, 6314-a high-pressure straight pipe D, 64-an inner pipe high-pressure manifold bracket, 7-a suspension arm, 8-a transportation base and 9-a video monitoring device, 10-steel wire rope sling, 11-hydraulic partition plate/electrical junction box, 12-continuous concentric tube, 1201-continuous concentric tube outer tube and 1202-continuous concentric tube inner tube.
Detailed Description
The invention is further described with reference to the following figures and examples:
a continuous concentric tube roller device at least comprises a roller base 1, a roller driving assembly 2 and a double-channel high-pressure manifold 6, wherein the roller driving assembly 2 and the double-channel high-pressure manifold 6 are arranged on the roller base 1, the roller driving assembly 2 is a hydraulic motor 210 which is in driving connection with a right-angle speed reducer 211, the right-angle speed reducer 211 is in driving connection with a roller body 204 through a driving chain wheel 212, the double-channel high-pressure manifold 6 comprises an annular high-pressure manifold channel 61 and an inner tube high-pressure manifold channel 63, a continuous concentric tube 12 is an annular sleeve structure formed by a continuous concentric tube outer tube 1201 and a continuous concentric tube inner tube 1202 which are concentrically arranged, the center of the annular sleeve structure is a hollow tube, the outer surface of the hollow tube is an annular hollow tube, one end of the annular high-pressure manifold channel 61 and one end of the inner tube high-pressure manifold channel 63 are respectively communicated with the continuous tube outer tube 1201 and the continuous concentric tube inner tube 1202, and the other end of the annular high-pressure manifold channel 61 and the inner tube high-pressure manifold channel 63 are respectively connected with external pumping and flowback-discharging equipment, form independent dynamic pumping channel and back-flow channel.
The drum drive assembly 2 includes: the roller comprises a roller body 204, a left half shaft 209, a right half shaft 203, a left bearing seat 205, a right bearing seat 202, a left mounting seat 206 and a right mounting seat 201; the left half shaft 209 and the right half shaft 203 are respectively installed on the left side and the right side of the roller body 204 and are both hollow structures, the left half shaft 209 and the right half shaft 203 are respectively supported on the left bearing seat 205 and the right bearing seat 202, the left bearing seat 205 and the right bearing seat 202 are respectively fixed on the left mounting seat 206 and the right mounting seat 201, the left mounting seat 206 and the right mounting seat 201 are respectively fixed on the roller base 1 through bolts, heavy-load self-aligning roller bearings are respectively installed in the left bearing seat 205 and the right bearing seat 202, and two ends of the roller body 204 are respectively arranged on the left half shaft 209 and the right half shaft 203.
The drum drive assembly 2 further comprises: a drive sprocket 212, a driven sprocket 208, a chain 207, a sprocket guard 213, a right angle reducer 211, a reducer base 214, and a hydraulic motor 210; the right-angle reducer 211 and the hydraulic motor 210 are fixed on the left mounting seat 206 through a reducer base 214, and the left mounting seat 206 is provided with a long hole for regularly adjusting the center distance between the driving chain wheel 212 and the driven chain wheel 208 to ensure proper chain tensioning; the driving sprocket 212 is connected to an output shaft of a right-angle reducer 211 via a spline, and the driven sprocket 208 is fixed to a left half shaft 209 and rotates coaxially with the drum body 204.
The annular high-pressure manifold channel 61 and the inner pipe high-pressure manifold channel 63, the high-pressure pipe fitting of each channel comprises a rotating part installed in the roller body 204 and a fixed part fixed on the roller base 1, and each channel is provided with a high-pressure rotating joint 6108. The annular high pressure manifold passage 61, high pressure tubing includes: a 90-degree elbow 6101, a plug valve 6102, a T-shaped tee 6103, a pressure sensor 6104, a high-pressure flowmeter 6105, a union plug 6106, a movable elbow 6107, a high-pressure rotary joint 6108, a right rotary joint seat 6109, a pressure relief needle valve 6110, a high-pressure straight pipe A6111, an angle T-shaped tee 6112 and a penetrating high-pressure sealing device 6113; the inner tube high pressure manifold channel 63, high pressure pipe fitting contains: a 90-degree elbow 6101, a plug valve 6102, a T-shaped tee 6103, a pressure sensor 6104, a high-pressure flowmeter 6105, a union plug 6106, a movable elbow 6107, a high-pressure rotary joint 6108, a left rotary joint seat 6309, a pressure relief needle valve 6110, a high-pressure straight pipe B6311, a high-pressure straight pipe C6312, a traversing high-pressure sealing device 6113 and a high-pressure straight pipe D6314. A rotary joint seat is coaxially arranged in each of the left half shaft 209 and the right half shaft 203, namely a left rotary joint seat 6309 and a right rotary joint seat 6109 (a high-pressure channel is arranged in the left half shaft and the right half shaft, one end of the channel is of a flange structure, and the other end of the channel is an FIG1502 union), the flange ends of the left rotary joint seat 6309 and the right rotary joint seat 6109 are respectively connected with the rotating parts of the high-pressure rotary joints 6108 of the two channels, and the other end of the left rotary joint seat 6309 and the right rotary joint 6109 are respectively connected with the rotating parts of the two manifold channels in the roller body 204 through the FIG1502 union; the end of the annulus high-pressure manifold channel 61 in the roller body 204 is connected with the continuous concentric tube outer tube 1201 of the continuous concentric tube 12 through one interface of an angle type T-shaped tee 6112 (the continuous concentric tube outer tube 1201 of the continuous concentric tube 12 is provided with FIG1502 union), the continuous concentric tube inner tube 1202 passes through the angle type T-shaped tee 6112 and penetrates out from the other interface, and the annulus of the continuous concentric tube 12 is reliably sealed through a penetrating type high-pressure sealing device 6113 (provided with FIG1502 union and connected with the tee interface where the continuous concentric tube inner tube 1202 penetrates out); after the continuous concentric tube inner tube 1202 penetrates out, another set of penetrating high-pressure sealing device 6113 is installed at the tail end of the continuous concentric tube inner tube 1202; the pass-through high pressure seal 6113 is mounted at the open end of the inner tube high pressure manifold channel 63 in the roller body 204 and connected by a 90 degree elbow 6101.
The fixed parts of the high-pressure pipe fittings of the annular high-pressure manifold channel 61 and the inner pipe high-pressure manifold channel 63 on the roller base 1 are respectively connected to the fixed ends of two high-pressure rotary joints 6108 through two movable elbows 6107, and the two high-pressure channels are both of a double-inlet structure (the joints are FIG1502 female union): one of the inlets needs to pass through a high pressure flow meter 6105 for passing liquid media of lower viscosity and density; the other inlet does not pass through the high pressure flow meter 6105 for passage of the gaseous medium. The output pipeline of the external pumping equipment and the input pipeline of the flow-back equipment are respectively connected with two or one interface (90-degree elbow 6101) of the annular high-pressure manifold channel 61 and the inner pipe high-pressure manifold channel 63 outside the roller, thereby establishing independent and dynamic pumping and flow-back connection channels between the roller device and the annular space of the continuous concentric pipe 12 and the inner pipe 1202, and meeting the requirements of the downhole operation of the continuous concentric pipe 12.
The high-pressure rotary joint 6108 is used for realizing the dynamic connection of a rotating high-pressure part in the roller body 204 and a fixed high-pressure part on the roller base 1, and the pressure sensor 6104 and the high-pressure flowmeter 6105 are respectively used for measuring the pressure and the flow of the working medium; the movable elbow 6107 has a buffer function to the high-pressure fluid during operation; the pressure relief needle valve 6110 is used for unloading; the penetrating high-pressure sealing device 6113 plays a role in sealing the annular space of the continuous concentric tube 12 and the inner tube 1202 of the continuous concentric tube, plays a role in clamping and suspending the inner tube 1202 of the continuous concentric tube, and prevents the inner tube 1202 of the continuous concentric tube from sliding under the action of gravity after the continuous concentric tube 12 is put into the well. The rotating part of the inner tube high pressure manifold channel 63 in the roller body 204 is fixed in the roller body 204 through a high strength bracket, and can bear the dead weight of the inner tube 1202 of the continuous concentric tube 12 after the continuous concentric tube is completely put into the well.
In order to enable the continuous concentric tube inner tube 1202 to easily pass through the T-shaped tee and to be taken out at a proper angle after penetrating out, so as to better seal the annular space, the angle type T-shaped tee 6112 is specially designed, so that the continuous concentric tube inner tube 1202 still keeps coaxial with the inner channel of the tee after passing through the T-shaped tee, a penetrating type high-pressure sealing device 6113 can be installed more conveniently, and the reliability of sealing performance is ensured.
The penetrating high-pressure sealing device 6113 includes: wing nut 611, union joint 612, compression bolt II 621, rivet pin 613, rivet pin sleeve 614, extrusion ring 619, concave rubber core 618 and convex rubber core 617; the union joint 612 is tubular, a boss I is arranged on the outer edge of one end of the union joint, the tubular inner cavity is divided into a first tube cavity and a second tube cavity, a rivet pin 613 and a rivet pin sleeve 614 which are matched with each other are arranged in the first tube cavity, and the end part of the union joint is pressed on the rivet pin 613 through a first compression bolt; the second lumen is internally provided with an extrusion ring 619, a concave rubber core 618 and a convex rubber core 617, the concave rubber core 618 and the convex rubber core 617 are matched with each other, two ends of the mutually matched rubber cores are respectively provided with the extrusion ring 619, the end parts of the mutually matched rubber cores are tightly pressed against the extrusion ring 619 through a second compression bolt 621, and an O-shaped ring 620 is arranged between the extrusion ring 619 and the second lumen; compression bolt two 621, rivet pin 613, rivet pin bushing 614, squeeze ring 619, gum recessed core 618 and gum raised core 617 form a sealable passageway within union joint 612; the inner hole of the wing nut 611 is provided with a second boss which is matched with the first boss at the outer edge of the end part of the union joint 612.
The middle part of the second tube cavity is provided with a threaded hole, a retainer ring 616 is arranged in the threaded hole, the retainer ring 616 is provided with an annular groove and a plurality of radial holes for circumferentially and uniformly injecting sealing media, the retainer ring 616 divides the second tube cavity into two parts, the internal structures of the two parts are the same, each part is provided with an extrusion ring 619, an undercut rubber core 618 and a protruding rubber core 617, the undercut rubber core 618 and the protruding rubber core 617 are matched with each other, and two ends of each group of matched rubber cores are respectively provided with an extrusion ring 619.
The penetrating type high-pressure sealing device 6113 is connected and sealed with the annular high-pressure manifold channel 61 and the inner pipe high-pressure manifold channel 63 by adopting union, and the continuous concentric pipe inner pipe 1202 of the continuous concentric pipe 12 penetrates through the penetrating type high-pressure sealing device 6113; the extrusion ring 619 is compressed through the second compression bolt 621, the convex rubber core 617 and the concave rubber core 618 are compressed, the rubber core is compressed and deformed, the inner pipe 1202 and the inner wall of the union joint 612 are extruded to realize reliable sealing, and the extrusion ring 619 and the inner hole of the union joint 612 are sealed through the O-shaped ring 620.
At the union end, the rivet pin 613 is a fin structure, and the inner wall has threads, the rivet pin 613 and the rivet pin sleeve 614 are in conical surface fit, the rivet pin 613 is extruded by the pressing bolt, and generates axial displacement relative to the rivet pin sleeve 614, the fins of the rivet pin 613 generate inward contraction deformation through the conical surface fit, so as to lock the continuous concentric tube inner tube 1202, the threads on the inner wall of the rivet pin 613 play a role in increasing friction coefficient, and the generated friction clamping force can bear the weight of the whole continuous concentric tube inner tube 1202, so that the continuous concentric tube inner tube 1202 is prevented from sliding under the action of gravity after the continuous concentric tube 12 is completely inserted into the well.
The seal between the penetrating type high-pressure sealing device 6113 and the continuous concentric pipe 12 is a detachable structure, the sealing element can be repeatedly used, if a continuous concentric pipe roller device is used for conventional underground operation of a single continuous pipe, only two sets of penetrating type high-pressure sealing devices 6113 of the continuous concentric pipe 12 need to be detached, and the other interface (where the original continuous concentric pipe inner pipe 1202 penetrates) of the angle type T-shaped tee 6112, which is connected with the continuous pipe, of the annular high-pressure pipe converging channel 61 in the roller body 204 is plugged by a union plug 6106.
A liquid and sand discharging method of a continuous concentric tube roller device adopts the continuous concentric tube roller device and comprises the following steps:
the whole circulation process of the pumping channel and the backflow channel is as follows: the output pipe of the external pumping equipment is connected with two or one 90-degree elbow 6101 of the fixed part of the annular high-pressure manifold channel 61: if the pumped medium is gas, the inlet channel which does not pass through the high-pressure flowmeter 6105 is connected, and the plug valve 6102 which passes through the inlet channel of the high-pressure flowmeter 6105 is closed; if the pumped medium is light liquid with low viscosity, the inlet channel passing through the high-pressure flowmeter 6105 needs to be connected, and the plug valve 6102 not passing through the inlet channel of the high-pressure flowmeter 6105 is closed; after entering, the medium enters a movable elbow 6107 through a T-shaped tee 6103, then enters a high-pressure rotary joint 6108, enters a rotating part of an annular high-pressure manifold channel 61 in the roller body 204 through a right rotary joint seat 6109, enters an annular channel between an inner pipe and an outer pipe of a continuous concentric pipe 12 through the T-shaped tee 6103, a high-pressure straight pipe A6111, the 90-degree elbow 6101, a plug valve 6102, the 90-degree elbow 6101 and an angle T-shaped tee 6112, enters a jet tool at the tail end in a well of the continuous concentric pipe 12, enters the inner pipe tool through an annular nozzle high-pressure jet, generates negative pressure at a suction section of the inner pipe tool, sucks liquid or accumulated sand in the well into the inner pipe 1202 of the continuous concentric pipe after being accelerated by a throat pipe, and lifts the mixed medium in the well to the ground under the action of high-speed and high-pressure medium flow.
The mixed medium flows back to the ground through an inner pipe 1202 of a continuous concentric pipe, enters a rotating part of an inner pipe high-pressure manifold channel 63 in a roller body 204 through a penetrating high-pressure sealing device 6113 connected with the rotating part, sequentially passes through a 90-degree elbow 6101, a plug valve 6102, a T-shaped tee 6103, a high-pressure straight pipe D6314, a 90-degree elbow 6101, a high-pressure straight pipe C6312 and a left-handed rotary joint seat 6309, enters a high-pressure rotary joint 6108, is led out from the high-pressure rotary joint 6108, enters a fixed part of the inner pipe high-pressure manifold channel 63, sequentially enters a movable elbow 6107, a high-pressure straight pipe B6311, 2 90-degree elbows 6101 and the T-shaped tee 6103, is the same as a pumping channel, whether the mixed medium passes through a channel with a high-pressure flowmeter 6105 according to the condition is selected, the other channel is closed, and the medium passes through the plug valve 6102 and the 90-degree elbow 6101 and the ground channel to be discharged to an external container.
The present invention also includes: the device comprises a pipe arrangement system 3, a guiding and lubricating system 4, a counting system 5, a suspension arm 7, a transportation base 8, a steel wire rope sling 10, a video monitoring device 9 and a hydraulic baffle plate/electric junction box 11, wherein the transportation base 8 is arranged below a roller base 1, and the suspension arm 7 and the steel wire rope sling 10 are arranged on the roller base 1.
The pipe racking system 3 is used to ensure regular, orderly winding of the continuous concentric tubes 12 on the drum body 204. The guiding and lubricating system 4 serves to guide and maintain the continuous concentric tube 12. The counting system 5 is used to record the length and speed of the running in and out of the continuous concentric tube 12 in the well. The video monitoring device 9 is used to facilitate the operator in the control room to observe the arrangement of the continuous concentric tubes 12 on the drum. The hydraulic clapboard/electric connection box 11 is used for the centralized and rapid connection of hydraulic power, control pipelines and electric signal devices between the continuous concentric tube roller device and continuous tube operation equipment.
The rotary lifting type rotary lock is fixed between the roller base 1 and the transportation base 8 through four corners, the rotary lifting type rotary lock can be quickly detached, the transportation base 8 is used for fixing the whole continuous concentric tube roller device when being supported and transported, the bottom of the transportation base 8 is provided with an oil stain collecting device and a concentrated sewage discharge port, and the sewage discharge port is provided with an end cap. The suspension arm 7 and the wire rope sling 10 are used for hoisting the whole continuous concentric tube drum device, and the wire rope sling 10 is installed on the suspension arm 7. The drum drive assembly 2 includes: the device comprises a roller body 204, a left half shaft 209, a right half shaft 203, a left bearing seat 205, a right bearing seat 202, a left mounting seat 206, a right mounting seat 201, a driving chain wheel 212, a driven chain wheel 208, a chain 207, a chain wheel shield 213, a right-angle speed reducer 211, a speed reducer base 214 and a hydraulic motor 210.
The above embodiments are only specific examples of the present invention, and the scope of the present invention includes but is not limited to the product forms and styles of the above embodiments, and any continuous concentric tube roller device and method consistent with the claims of the present invention and any changes or modifications thereof by those skilled in the art should fall within the scope of the present invention.
Claims (8)
1. A continuous concentric tube drum device, characterized in that: at least comprises a roller base (1), a roller driving assembly (2) and a double-channel high-pressure manifold (6), wherein the roller driving assembly (2) and the double-channel high-pressure manifold (6) are arranged on the roller base (1), the roller driving assembly (2) is connected with a right-angle speed reducer (211) by a hydraulic motor (210) in a driving way, the right-angle speed reducer (211) is connected with a roller body (204) by a driving chain wheel (212) in a driving way, the double-channel high-pressure manifold (6) comprises an annular high-pressure manifold channel (61) and an inner tube high-pressure manifold channel (63), a continuous concentric tube (12) is an annular sleeve structure consisting of a continuous concentric tube outer tube (1201) and a continuous concentric tube inner tube (1202) which are concentrically arranged, the center of the annular sleeve structure is a hollow tube, an annular tube is arranged outside the hollow tube, one end of the annular high-pressure manifold channel (61) and one end of the inner tube high-pressure manifold channel (63) are respectively communicated with the continuous concentric tube outer tube (1201) and the continuous tube inner tube (1202), the other end of the pump is respectively connected with external pumping and back-flow equipment to form an independent dynamic pumping channel and a back-flow channel.
2. A continuous concentric tube drum device, as claimed in claim 1, wherein: the drum drive assembly (2) comprises: the device comprises a roller body (204), a left half shaft (209), a right half shaft (203), a left bearing seat (205), a right bearing seat (202), a left mounting seat (206) and a right mounting seat (201); the left half shaft (209) and the right half shaft (203) are respectively installed on the left side and the right side of the roller body (204) and are of a hollow structure, the left half shaft (209) and the right half shaft (203) are respectively supported on a left bearing seat (205) and a right bearing seat (202), the left bearing seat (205) and the right bearing seat (202) are respectively fixed on a left mounting seat (206) and a right mounting seat (201), the left mounting seat (206) and the right mounting seat (201) are respectively fixed on the roller base (1) through bolts, heavy-load self-aligning roller bearings are respectively installed in the left bearing seat (205) and the right bearing seat (202), and two ends of the roller body (204) are respectively arranged on the left half shaft (209) and the right half shaft (203).
3. A continuous concentric tube drum device, as claimed in claim 2, wherein: the high-pressure pipe fitting of each channel comprises a rotating part arranged in the roller body (204) and a fixing part fixed on the roller base (1), and each channel is provided with a high-pressure rotating joint (6108); the annular high pressure manifold passage (61), high pressure tubing comprises: the device comprises a 90-degree elbow (6101), a plug valve (6102), a T-shaped tee (6103), a pressure sensor (6104), a high-pressure flowmeter (6105), a union plug (6106), a movable elbow (6107), a high-pressure rotary joint (6108), a right rotary joint seat (6109), a pressure relief needle valve (6110), a high-pressure straight pipe A (6111), an angle type T-shaped tee (6112) and a crossing type high-pressure sealing device (6113); the inner tube high pressure manifold channel (63), high pressure pipe fitting contains: the device comprises a 90-degree elbow (6101), a plug valve (6102), a T-shaped tee (6103), a pressure sensor (6104), a high-pressure flowmeter (6105), a union plug (6106), a movable elbow (6107), a high-pressure rotary joint (6108), a left-handed rotary joint seat (6309), a pressure relief needle valve (6110), a high-pressure straight pipe B (6311), a high-pressure straight pipe C (6312), a traversing high-pressure sealing device (6113) and a high-pressure straight pipe D (6314); a rotary joint seat, namely a left rotary joint seat (6309) and a right rotary joint seat (6109), is coaxially arranged in each of the left half shaft (209) and the right half shaft (203), the flange ends of the left rotary joint seat (6309) and the right rotary joint seat (6109) are respectively connected with the rotating parts of the high-pressure rotary joints (6108) of the two channels, and the other ends of the left rotary joint seat (6309) and the right rotary joint seat (6109) are respectively connected with the rotating parts of the two manifold channels in the roller body (204) through the FIN 1502 and the union; the tail end of the annular high-pressure manifold channel (61) in the roller body (204) is connected with the continuous concentric tube outer tube (1201) of the continuous concentric tube (12) through one interface of an angle type T-shaped tee joint (6112), the continuous concentric tube inner tube (1202) penetrates through the angle type T-shaped tee joint (6112) and penetrates out of the other interface, and the annular space of the continuous concentric tube (12) is reliably sealed through a penetrating type high-pressure sealing device (6113); after the continuous concentric tube inner tube (1202) penetrates out, installing another set of penetrating high-pressure sealing device (6113) at the tail end of the continuous concentric tube inner tube (1202); the through high-pressure sealing device (6113) is arranged at the tail end of an opening of the inner pipe high-pressure manifold channel (63) in the roller body (204) and is connected through a 90-degree elbow (6101).
4. A continuous concentric tube drum device, according to claim 3, wherein: the fixed part of the high-pressure pipe fittings of the annulus high-pressure manifold channel (61) and the inner pipe high-pressure manifold channel (63) on the roller base (1) is respectively connected with the fixed ends of two high-pressure rotary joints (6108) through two movable elbows (6107), and the two high-pressure channels are of a double-inlet structure: one of the inlets passes through a high pressure flow meter (6105); the other inlet does not pass through a high pressure flow meter (6105); the output pipeline of the external pumping equipment and the input pipeline of the backflow equipment are respectively connected with two or one interface of the annular high-pressure manifold channel (61) and the inner pipe high-pressure manifold channel (63) outside the roller, so that independent and dynamic pumping and backflow connecting channels between the roller device and the annular space of the continuous concentric pipe (12) and the inner pipe (1202) of the continuous concentric pipe are established.
5. A continuous concentric tube drum device, according to claim 3, wherein: the high-pressure rotary joint (6108) is used for realizing the dynamic connection of a rotating high-pressure piece in the roller body (204) and a fixed high-pressure piece on the roller base (1), and the pressure sensor (6104) and the high-pressure flow meter (6105) are respectively used for measuring the pressure and the flow of an operation medium; the movable elbow (6107) has the buffer function to the high-pressure fluid during the operation; the pressure relief needle valve (6110) is used for unloading; the penetrating type high-pressure sealing device (6113) plays a role in sealing the annular space of the continuous concentric tube (12) and the inner tube (1202) of the continuous concentric tube, plays a role in clamping and suspending the inner tube (1202) of the continuous concentric tube, and prevents the inner tube (1202) of the continuous concentric tube from sliding under the action of gravity after the continuous concentric tube (12) is put into the well; the rotating part of the inner pipe high-pressure manifold channel (63) in the roller body (204) is fixed in the roller body (204) through a high-strength bracket and can bear the dead weight of the inner pipe (1202) of the continuous concentric pipe (12) after the continuous concentric pipe is completely put into the well.
6. A continuous concentric tube drum device, according to claim 3, wherein: the pass-through high pressure seal device (6113) comprising: the bolt assembly comprises an airfoil nut (611), a union joint (612), a compression bolt II (621), a riveting pin (613), a riveting pin sleeve (614), an extrusion ring (619), a concave rubber core (618) and a convex rubber core (617); the union joint (612) is tubular, a boss I is arranged on the outer edge of one end of the union joint, the tubular inner cavity is divided into a first tube cavity and a second tube cavity, a rivet pin (613) and a rivet pin sleeve (614) which are matched with each other are arranged in the first tube cavity, and the end part of the union joint is pressed on the rivet pin (613) through a pressing bolt I; a squeezing ring (619), a concave rubber core (618) and a convex rubber core (617) are arranged in the second tube cavity, the concave rubber core (618) and the convex rubber core (617) are matched with each other, two ends of the mutually matched rubber cores are respectively provided with the squeezing ring (619), the squeezing ring (619) is tightly pressed at the end part through a second compression bolt (621), and an O-shaped ring (620) is arranged between the squeezing ring (619) and the second tube cavity; the compression bolt II (621), the rivet pin (613), the rivet pin sleeve (614), the extrusion ring (619), the concave rubber core (618) and the convex rubber core (617) form a sealable channel in the union joint (612); a boss II is arranged in an inner hole of the wing nut (611) and matched with the boss I on the outer edge of the end part of the union joint (612); the crossing type high-pressure sealing device (6113) is connected and sealed with an annular high-pressure manifold channel (61) and an inner pipe high-pressure manifold channel (63) by adopting a union, and a continuous concentric pipe inner pipe (1202) of a continuous concentric pipe (12) passes through the middle of the crossing type high-pressure sealing device (6113); the extrusion ring (619) is compressed through a second compression bolt (621), the convex rubber core (617) and the concave rubber core (618) are compressed, the rubber core is compressed and deformed, the inner wall of the inner pipe (1202) and the inner wall of the union joint (612) are extruded to realize reliable sealing, and the extrusion ring (619) and the inner hole of the union joint (612) are sealed through an O-shaped ring (620); at the union end, the rivet pin (613) is of a fin type structure, the inner wall of the rivet pin (613) is provided with screw threads, the rivet pin (613) and the rivet pin sleeve (614) are in conical surface fit, the rivet pin (613) is extruded through a compression bolt and generates axial displacement relative to the rivet pin sleeve (614), the fins of the rivet pin (613) generate inward contraction type deformation through the conical surface fit, so that the continuous concentric tube inner tube (1202) is locked, the screw threads on the inner wall of the rivet pin (613) play a role in increasing friction coefficient, the generated friction clamping force can bear the weight of the whole continuous concentric tube inner tube (1202), and the continuous concentric tube inner tube (1202) is prevented from sliding under the action of gravity after the continuous concentric tube (12) is completely put into the well.
7. A continuous concentric tube drum device according to claim 1 or 2, wherein: the drum drive assembly (2) further comprises: the chain wheel driving device comprises a driving chain wheel (212), a driven chain wheel (208), a chain (207), a chain wheel shield (213), a right-angle speed reducer (211), a speed reducer base (214) and a hydraulic motor (210); the right-angle speed reducer (211) and the hydraulic motor (210) are fixed on the left mounting seat (206) through a speed reducer base (214), and the left mounting seat (206) is provided with a strip hole for periodically adjusting the center distance between the driving chain wheel (212) and the driven chain wheel (208) to ensure that the chain is properly tensioned; the driving chain wheel (212) is connected with an output shaft of a right-angle speed reducer (211) through a spline, and the driven chain wheel (208) is fixed on a left half shaft (209) and rotates coaxially with the roller body (204).
8. A liquid discharge and sand discharge method for a continuous concentric tube roller device, which uses the continuous concentric tube roller device defined in any one of claims 3 to 6, characterized by the steps of:
the whole circulation process of the pumping and the backflow channels is as follows: the output pipe of the external pumping equipment is connected with two or one 90-degree elbow (6101) of the fixed part of the annular high-pressure manifold channel (61): if the pumped medium is gas, connecting an inlet channel which does not pass through the high-pressure flowmeter (6105), and closing a plug valve (6102) which passes through the inlet channel of the high-pressure flowmeter (6105); if the pumped medium is light liquid with low viscosity, an inlet channel passing through the high-pressure flowmeter (6105) needs to be connected, and a plug valve (6102) which does not pass through the inlet channel of the high-pressure flowmeter (6105) is closed; after entering, the medium enters a movable elbow (6107) through a T-shaped tee joint (6103) and then enters a high-pressure rotary joint (6108), the part of the rotating part of the annular high-pressure manifold channel (61) in the roller body (204) entering through the right rotary joint seat (6109) enters the annular channel between the inner pipe and the outer pipe of the continuous concentric pipe (12) through a T-shaped tee (6103), a high-pressure straight pipe A (6111), a 90-degree elbow (6101), a plug valve (6102), the 90-degree elbow (6101) and an angle type T-shaped tee (6112), the end of the well in the continuous concentric tube (12) enters a jet tool, high pressure jet enters an inner tube tool through an annular nozzle, and generating negative pressure in the suction section of the inner pipe tool, sucking the liquid or accumulated sand in the well into the suction section of the inner pipe tool, accelerating the liquid or accumulated sand through a throat pipe, entering the inner pipe (1202) of the continuous concentric pipe, and lifting the mixed medium in the well to the ground under the action of high-speed and high-pressure medium flow.
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| CN112855050B (en) * | 2021-04-27 | 2021-07-30 | 山东威盟石油机械有限公司 | Coiled tubing cylinder sled with tension regulatory function |
| CN114413067A (en) * | 2022-01-11 | 2022-04-29 | 深圳海油工程水下技术有限公司 | Deepwater steel pipe laying device |
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| CN201314227Y (en) * | 2008-12-17 | 2009-09-23 | 中国石油天然气集团公司 | Coiled tubing logging reel unit |
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