CN104929574A - Dual-channel different-direction joint-control check valve - Google Patents
Dual-channel different-direction joint-control check valve Download PDFInfo
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- CN104929574A CN104929574A CN201510152589.1A CN201510152589A CN104929574A CN 104929574 A CN104929574 A CN 104929574A CN 201510152589 A CN201510152589 A CN 201510152589A CN 104929574 A CN104929574 A CN 104929574A
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Abstract
The invention discloses a dual-channel different-direction joint-control check valve which comprises a left valve body, a right valve body, an inner piston, an outer piston, an inner reset spring and an outer reset spring. A gap with the preset size is reserved between the hole wall of a first right through hole and the hole wall of a first left through hole, a plurality of inner grooves are evenly circumferentially arranged in the outer wall of the inner piston and correspond to the gap, a plurality of outer grooves are arranged in the inner wall of the outer piston in a manner of being in one-to-one correspondence to the inner grooves, the bottom of each outer groove is provided with one pin shaft reset spring, one pin shaft is jacked into the inner groove through the pin shaft reset spring, the hole wall of the first right through hole is provided with blind holes corresponding to the pins shafts, each blind hole is provided with one slider and a slider reset spring which press the slider onto the pin shaft, and the inner piston drives the outer piston to move synchronously through the pin shafts when moving rightwards under the pressure of the left side. By the arrangement, blowout accident can be effectively prevented when accident happens.
Description
Technical field
The present invention relates to oil drilling equipment field, in particular to the incorgruous joint control ball-and-seat of a kind of binary channels.
Background technology
When double layer continuous oil pipe band instrument carries out operation, will run into the problems such as the damaged and fracture of the double layer continuous oil pipe body that causes because of sudden accident, now OIH air water will be gushed and cause gas blowout accident from post-rift double layer continuous oil pipe internal and external channel.Therefore, the incorgruous joint control ball-and-seat of a kind of binary channels is needed.
Summary of the invention
Technical problem to be solved by this invention is, providing a kind of can at the passage effectively closing inside and outside two-layer coiled tubing when fortuitous event occurs, thus stop well liquid to return out, prevents the incorgruous joint control ball-and-seat of binary channels of gas blowout accident.
Therefore, technical scheme of the present invention is as follows:
The incorgruous joint control ball-and-seat of a kind of binary channels, is characterized in that, comprise left valve barrel, right valve barrel, internal layer piston, outer piston, internal layer back-moving spring, outer back-moving spring, wherein:
Described left valve barrel center is provided with the first left through hole, around described first left through hole, multiple the second left through hole be uniformly distributed circumferentially also is provided with between described first left through hole and the outer wall of described left valve barrel, the internal thread for being connected inside and outside two-layer coiled tubing body is processed with respectively at the described left end of the first left through hole and the left end of described left valve barrel, the right-hand member inner wall depression of described first left through hole forms the first left ring-shaped step coordinated with described internal layer piston, the the second left ring-shaped step coordinated with described outer piston is also formed between described first left through hole and the outer wall of described left valve barrel,
Described right valve barrel center is provided with the first right through hole, around described first right through hole, multiple the second right through hole be uniformly distributed circumferentially also is provided with between described first right through hole and the outer wall of described right valve barrel, the internal thread for being connected inside and outside two-layer coiled tubing body is processed with respectively at the described right-hand member of the first right through hole and the right-hand member of described right valve barrel, the left end inner wall depression of described first right through hole forms the first right ring-shaped step coordinated with described internal layer back-moving spring, left end between described first right through hole and the outer wall of described right valve barrel is also formed with the second right ring-shaped step coordinated with described outer back-moving spring,
Described left valve barrel and described right valve barrel are the cylinder that external diameter is identical, and the left end of the right-hand member of described left valve barrel and described right valve barrel is threaded connection, described first left through hole is coaxial with described first right through hole, described second left through hole and described second right through hole one_to_one corresponding;
The left end of described internal layer piston is pressed on described first left ring-shaped step and forms sealing, right-hand member is pressed on described first right ring-shaped step by described internal layer back-moving spring, and the inwall of the outer wall of described internal layer piston and described first left through hole, the inwall of described first right through hole coordinates formation sealing, described outer piston bush is on the outer wall of described first left through hole and the outer wall of described first right through hole, the left end of described outer piston is pressed on described second left ring-shaped step and forms sealing, right-hand member is pressed on described second right ring-shaped step by described outer back-moving spring, and the outer wall of the inwall of described outer piston and described first left through hole, the outer wall of described first right through hole coordinates formation sealing,
The space of default size is left between the hole wall and the hole wall of described first left through hole of described first right through hole, on the outer wall of described internal layer piston with described space accordingly circumference be evenly provided with multiple inner groovy, the inwall of described outer piston is provided with multiple outer groove correspondingly with described inner groovy, the bottom of each described outer groove is equipped with a bearing pin back-moving spring, one bearing pin heads in described inner groovy by described space by described bearing pin back-moving spring, all with each described bearing pin in the hole wall of described first right through hole be correspondingly provided with a blind hole, a slide block and slide block back-moving spring is equipped with in each described blind hole, described slide block is pressed on described bearing pin by described slide block back-moving spring, described outer piston synchronous motion is driven by described bearing pin when described internal layer piston moves right under left pressure,
The center of described internal layer piston is provided with opening piston blind hole to the right vertically, and the left end of described internal layer piston has been uniformly distributed circumferentially multiple interior connectivity slot, for described piston blind hole being communicated with described first left through hole when described internal layer piston moves right;
The outer wall of described outer piston is correspondingly provided with an outer connectivity slot, for being communicated with described second left through hole by described second right through hole when described outer piston moves right with each described second left through hole is equal.
Binary channels in this technical scheme incorgruous joint control ball-and-seat connects with double layer continuous oil pipe and has the incorgruous synchronous joint control single current function of binary channels, the matching used various instrument with double layer continuous oil pipe can be connected by this instrument, reach construction object, opening pressure and the closing presure of compact conformation, valve are low, valve can bear high pressure, the safe and reliable point of construction operation after cutting out.
Described first left ring-shaped step and described second left ring-shaped step are installed with internal layer piston seat and outer piston seat respectively, described outer piston is pressed on described outer piston seat and forms sealing, and described internal layer piston is pressed on described internal layer piston seat and forms sealing.
The inwall of described internal layer piston seat and the left side of described internal layer piston are the conical surface cooperatively interacted, and the inwall of described outer piston seat and the left side of described outer piston are the conical surface cooperatively interacted, and seal more reliable.
Described bearing pin is straight pin, and the left side of described slide block is the cambered surface coordinated with described bearing pin, more reliably.
Accompanying drawing explanation
Fig. 1 is according to the B-B sectional view under the binary channels of the embodiment of the present invention incorgruous joint control ball-and-seat closed condition;
Fig. 2 is A-A sectional view of the incorgruous joint control ball-and-seat of binary channels in Fig. 1;
Fig. 3 is the left view of left valve barrel in the incorgruous joint control ball-and-seat of binary channels in Fig. 1;
Fig. 4 is the C-C sectional view of left valve barrel in Fig. 3;
Fig. 5 is the right view of the right valve barrel of the incorgruous joint control ball-and-seat of binary channels in Fig. 1;
Fig. 6 is the D-D sectional view of right valve barrel in Fig. 5;
The independent structural representation of internal layer piston in binary channels incorgruous joint control ball-and-seat in Fig. 7 Fig. 1;
Fig. 8 is the E-E sectional view of internal layer piston in Fig. 7;
Fig. 9 is the F-F sectional view of internal layer piston in Fig. 7;
Figure 10 is the independent structural representation of binary channels incorgruous joint control ball-and-seat ectomesoderm piston in Fig. 1;
Figure 11 is the H-H sectional view of Figure 10 ectomesoderm piston;
Figure 12 is the independent structural representation of slide block in binary channels incorgruous joint control ball-and-seat in Fig. 1;
Figure 13 is the schematic diagram in Fig. 1 under binary channels incorgruous joint control ball-and-seat open mode.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
As shown in figure 1 to figure 13, the incorgruous joint control ball-and-seat of binary channels, is characterized in that according to an embodiment of the invention, comprises left valve barrel 2, right valve barrel 14, internal layer piston 24, outer piston 6, internal layer back-moving spring 26, outer back-moving spring 13, wherein:
Described left valve barrel 2 center is provided with the first left through hole 41, around described first left through hole 41, multiple the second left through hole 42 be uniformly distributed circumferentially also is provided with between described first left through hole 41 and the outer wall of described left valve barrel 2, the internal thread for being connected inside and outside two-layer coiled tubing body is processed with respectively at left end and the left end of described left valve barrel 2 of described first left through hole 41, the right-hand member inner wall depression of described first left through hole 41 forms the first left ring-shaped step 51 coordinated with described internal layer piston 24, the the second left ring-shaped step 52 coordinated with described outer piston 6 is also formed between described first left through hole 41 and the outer wall of described left valve barrel 2,
Described right valve barrel 14 center is provided with the first right through hole 61, around described first right through hole 61, multiple the second right through hole 62 be uniformly distributed circumferentially also is provided with between described first right through hole 61 and the outer wall of described right valve barrel 14, the internal thread for being connected inside and outside two-layer coiled tubing body is processed with respectively at right-hand member and the right-hand member of described right valve barrel 14 of described first right through hole 61, the left end inner wall depression of described first right through hole 61 forms the first right ring-shaped step 71 coordinated with described internal layer back-moving spring 26, left end between described first right through hole 61 and the outer wall of described right valve barrel 14 is also formed with the second right ring-shaped step 72 coordinated with described outer back-moving spring 13,
Described left valve barrel 2 is the cylinder that external diameter is identical with described right valve barrel 14, and the right-hand member of described left valve barrel 2 and the left end of described right valve barrel 14 are threaded connection, described first left through hole 41 is coaxial with described first right through hole 61, described second left through hole 42 and described second right through hole 62 one_to_one corresponding;
The left end of described internal layer piston 24 is pressed on described first left ring-shaped step 51 and forms sealing, right-hand member is pressed on described first right ring-shaped step 71 by described internal layer back-moving spring 26, and the inwall of the outer wall of described internal layer piston 24 and described first left through hole 41, the inwall of described first right through hole 61 coordinates formation sealing, described outer piston bush 6 is on the outer wall of described first left through hole 41 and the outer wall of described first right through hole 61, the left end of described outer piston 6 is pressed on described second left ring-shaped step 52 and forms sealing, right-hand member is pressed on described second right ring-shaped step 72 by described outer back-moving spring 13, and the outer wall of the inwall of described outer piston 6 and described first left through hole 41, the outer wall of described first right through hole 61 coordinates formation sealing,
The space of default size is left between the hole wall and the hole wall of described first left through hole 41 of described first right through hole 61, on the outer wall of described internal layer piston 24 with described space accordingly circumference be evenly provided with multiple inner groovy 30, the inwall of described outer piston 6 is provided with multiple outer groove 31 correspondingly with described inner groovy 30, the bottom of each described outer groove 31 is equipped with a bearing pin back-moving spring 8, one bearing pin 9 heads in described inner groovy 30 by described space by described bearing pin back-moving spring 8, all correspondingly with each described bearing pin 9 in the hole wall of described first right through hole 61 be provided with a blind hole 20, a slide block 22 and slide block back-moving spring 23 is equipped with in each described blind hole 20, described slide block 22 is pressed on described bearing pin 9 by described slide block back-moving spring 23, described outer piston 6 is driven to be synchronized with the movement by described bearing pin 9 when described internal layer piston 24 moves right under left pressure,
The center of described internal layer piston 24 is provided with opening piston blind hole 21 to the right vertically, and the left end of described internal layer piston 24 has been uniformly distributed circumferentially multiple interior connectivity slot 29, for described piston blind hole 21 being communicated with described first left through hole 41 when described internal layer piston 24 moves right;
All correspondingly with each described second left through hole 42 on the outer wall of described outer piston 6 be provided with an outer connectivity slot 32, for being communicated with described second left through hole 42 by described second right through hole 62 when described outer piston 6 moves right.
Binary channels in this technical scheme incorgruous joint control ball-and-seat connects with double layer continuous oil pipe and has the incorgruous synchronous joint control single current function of binary channels, the matching used various instrument with double layer continuous oil pipe can be connected by this instrument, reach construction object, opening pressure and the closing presure of compact conformation, valve are low, valve can bear high pressure, the safe and reliable point of construction operation after cutting out.
Described first left ring-shaped step 51 and described second left ring-shaped step 52 are installed with internal layer piston seat 18 and outer piston seat 5 respectively, described outer piston 6 is pressed on described outer piston seat 5 and forms sealing, and described internal layer piston 24 is pressed on described internal layer piston seat 18 and forms sealing.
The inwall of described internal layer piston seat 18 and the left side of described internal layer piston 24 are the conical surface cooperatively interacted, and the inwall of described outer piston seat 5 and the left side of described outer piston 6 are the conical surface cooperatively interacted, and seal more reliable.
Described bearing pin 9 is straight pin, and the left side of described slide block 22 is the cambered surface 33 coordinated with described bearing pin, more reliably.
Be below a specific embodiment of the present invention:
As shown in Figures 1 to 4, left valve barrel 2 is cylindrical structure, the female mouth of bilayer for connecting inside and outside two-layer coiled tubing body of the inwall finish turning of one end, the outer wall finish turning of the other end pin thread for connecting right valve barrel 14.Bore the cylindrical hole that milling one diameter is less than internal layer screw thread in the position at the center of left valve barrel 2, i.e. the first left through hole 41, for injection and the discharge of liquid in internal layer coiled tubing.The long round section through hole that milling three angles are mutually 120 ° is bored respectively in the position apart from the first left through hole 41 outer rim certain distance, namely the second left through hole 42 (wherein, in the present embodiment, quantity is three, also can be two or four etc.), for injection and the discharge of liquid in outer coiled tubing.
As shown in Fig. 1,2,5,6, right valve barrel 14 is similarly cylindrical structure, double-deck box for connecting inside and outside two-layer coiled tubing body of the inwall finish turning of one end, the inwall finish turning of the other end box for connecting left valve barrel 2, the cylindrical hole that milling one diameter is less than internal layer screw thread is bored in the center of right valve barrel 14, i.e. the first right through hole 51, for injection and the discharge of liquid in internal layer coiled tubing.The long round section through hole that milling three angles are mutually 120 ° is bored respectively in the position apart from the first right through hole 51 outer rim certain distance, namely the second right through hole 52 (wherein, in the present embodiment, quantity is three, also can be two or four etc.), this through hole is consistent with three the second left through hole 42 positions of left valve barrel 2 outer rim, for injection and the discharge of liquid in outer coiled tubing.
As shown in Fig. 1,2,7,8,9, internal layer piston 24 is a cylinder with conical head, be milled with a diameter at this cylindrical heart portion brill and be slightly less than the piston blind hole 21 of internal layer screw thread as flow channels, cut the uncovered chute excessively that three have sector crosssection respectively near one end of conical head in this cylindrical side, this is crossed chute and is connected with piston blind hole 21 by boring in its bottom the cylindrical hole milled out, this uncovered chute and cylindrical hole are excessively referred to as interior connectivity slot 29, for injection and the discharge of liquid in internal layer coiled tubing.Periphery outside interior connectivity slot 29, also cuts annular seal groove respectively and bores and be milled with three angles and be mutually the inner groovy 30 of 120 ° as axis pin base.Internal layer piston seat 18 is that have cone-shaped hole, side to be drilled with a three cylindrical shape dowel bushings circular steel ring, the angle between each dowel bushing 120 ° each other.
As shown in Fig. 1,2,10,11, outer piston 6 be side cut three for outer coiled tubing in the injection of liquid and the cylinder with sector crosssection open channels (i.e. outer connectivity slot 32) of discharge, also bore in this cylindrical center and be milled with one for by the cylindrical hole of this Piston assembling to left valve barrel 2 inside, the inwall of this cylindrical hole also bores respectively and is milled with three angles and is mutually the outer groove 31 of 120 ° as axis pin base.Outer piston seat 5 for there is cone-shaped hole, the circular steel ring that side is drilled with three dowel bushings, the angle between each dowel bushing 120 ° each other.
Bearing pin 9 can be the stainless steel cylinder that size is equal, and the diameter at these cylinder two ends will be slightly less than mid diameter.As shown in figure 12, slide block 22 can at one end to have the stainless steel cylinder forming cambered surface 33 with the semi-circular groove of bearing pin 9 same diameter.Outer back-moving spring 13, internal layer back-moving spring 26, bearing pin back-moving spring 8, bearing pin back-moving spring 20, slide block back-moving spring 11 and slide block back-moving spring 23 are the diameter circular cross-section stainless steel spring different with spring wire thickness.
First, by slide block 22 and slide block back-moving spring 23, installed internal layer piston 24 and the internal layer back-moving spring 26 of sealing ring 19 additional, and outer back-moving spring 13 is placed in the cavity of the right valve barrel 14 having installed sealing ring 7,12,25,27,28 additional respectively; Then bearing pin 9 and bearing pin back-moving spring 8 to be respectively charged in the axis pin base on outer piston 6 inwall and to compress, and push in the outer annular cavity of right valve barrel 14 with outer piston 6, now outer piston 6 just will touch outer back-moving spring 13, bearing pin 9 will be adjacent to the cambered surface 33 of corresponding slide block 22 away from back-moving spring end, bearing pin back-moving spring 8 ejects the bearing pin 9 of each correspondence and makes it penetrate in each axis pin base on internal layer piston 24 surface, thus utilize the effect of the UNICOM of bearing pin to make inside and outside two-layer piston seat become as a whole, reach the object of synchronous different to joint control.Wherein, the space between the hole wall of the first left through hole 41 and the hole wall of the first right through hole 61 is not only wanted to hold bearing pin 9 and is passed, and bearing pin 9 also will be allowed in this space to move certain stroke with ectonexine piston.
Then, adopt pin 15,16,17 outer piston seat 5 and internal layer piston seat 18 to be separately fixed on left valve barrel 2 respectively, and by screw thread, the left valve barrel 2 assembled is connected with right valve barrel 14, namely complete the connection of the incorgruous joint control ball-and-seat of binary channels.
Adopt respectively on the inside and outside two-layer body being machined into double layer continuous oil pipe and process pin thread screw thread respectively, then will to have assembled and this binary channels incorgruous joint control ball-and-seat having installed sealing ring 1 and sealing ring 3 additional is tightened on the body of inside and outside two-layer coiled tubing by the screw thread on left valve barrel 2 left end inwall, namely completed the connection of this ball-and-seat and double layer continuous oil pipe body.
Before onsite application, fine finishining is respectively adopted on the inside and outside two-layer body being machined into double layer continuous oil pipe one end to go out pin thread screw thread first respectively.During onsite application, the double layer continuous oil pipe with pin thread screw thread is pulled out, be connected with the binary channels assembled incorgruous joint control ball-and-seat valve body by male thread in left valve barrel 2 upper end.After being full of clear water in double layer continuous oil pipe body, by screwed connection related tool inside and outside right valve barrel 14 lower end, by bulge test in inner layer coiled tubing, observe liquid stream artificial situation and the pressure drop situation of inside and outside coiled tubing annular space, whether seal to check binary channels incorgruous joint control ball-and-seat valve body.
The function of this binary channels incorgruous joint control ball-and-seat is as follows:
As shown in Fig. 1 to 13, Figure 13 is the open mode of the incorgruous joint control ball-and-seat of binary channels, Fig. 1 is closed condition, incorgruous for binary channels joint control ball-and-seat is arranged on the end of double layer continuous oil pipe body by screw thread, valve body lower end connected double-layer jet flow negative pressure rinses construction tool, at the bottom of injection head lower going-into-well.
Sand washing, bore in mill and de-plugging operation process, when passing through internal layer coiled tubing to shaft bottom injection flushing fluid, in in left valve barrel 2 first left through hole 41, pressure raises, under the effect of hydraulic pressure, compression internal layer back-moving spring 26 is departed from internal layer piston seat 18 by internal layer piston 24, and move to direction, shaft bottom, the gap that liquid now in the first left through hole 41 will enter between internal layer piston seat 16 and internal layer piston 24, and the piston blind hole 21 at internal layer piston 24 center is entered along three interior connectivity slots 29 of internal layer piston 24 side, thus make flushing fluid can enter by this hole the inner chamber that double-deck jet flow negative pressure rinses construction tool, carry out well-flushing construction operation.Internal layer piston 24 is to while the movement of direction, shaft bottom, outer piston 6 is driven synchronously to move to direction, shaft bottom the bearing pin 9 by connecting interior outer piston, and compress outer back-moving spring 13, now outer piston 6 will leave outer piston seat 5, make to have occurred gap between outer piston 6 and outer piston seat 5, thus make three outer connectivity slots 32 of outer piston 6 side achieve UNICOM by this gap and the second left through hole 42, the liquid that final shaft bottom is returned out can enter in outer coiled tubing inner chamber by the outer cavity of excess flow valve, and pipe injects in realizing, outer tube returns out, form the circulation of liquid stream between double layer continuous oil pipe inner and outer pipes, reach the object of negative pressure well-flushing in double layer continuous oil pipe pipe.
When making the double layer continuous oil pipe break above valve body when there are unexpected incidents, when making the overpressure of bottom pressure higher than this binary channels incorgruous joint control ball-and-seat valve body upper end, two piston reset springs 13,26 will be upspring and interior outer piston 24,6 is resetted, now the conical head of internal layer piston 24 and outer piston 6 will be close to internal layer piston seat 18 and outer piston seat 5 respectively, make this ball-and-seat can effectively close inside and outside two-layer coiled tubing passage simultaneously, liquid, the gas in prevention shaft bottom return out, and reach the effect of sealing, and effectively prevent blowout.
In sum, content of the present invention is not limited in the above-described embodiment, and those skilled in the art can propose other embodiment within technological guidance's thought of the present invention, but this embodiment all comprises within the scope of the present invention.
Claims (4)
1. the incorgruous joint control ball-and-seat of binary channels, it is characterized in that, comprise left valve barrel (2), right valve barrel (14), internal layer piston (24), outer piston (6), internal layer back-moving spring (26), outer back-moving spring (13), wherein:
Described left valve barrel (2) center is provided with the first left through hole (41), around described first left through hole (41), multiple the second left through hole (42) be uniformly distributed circumferentially also is provided with between described first left through hole (41) and the outer wall of described left valve barrel (2), the internal thread for being connected inside and outside two-layer coiled tubing body is processed with respectively at left end and the left end of described left valve barrel (2) of described first left through hole (41), the right-hand member inner wall depression of described first left through hole (41) forms the first left ring-shaped step (51) coordinated with described internal layer piston (24), the the second left ring-shaped step (52) coordinated with described outer piston (6) is also formed between described first left through hole (41) and the outer wall of described left valve barrel (2),
Described right valve barrel (14) center is provided with the first right through hole (61), around described first right through hole (61), multiple the second right through hole (62) be uniformly distributed circumferentially also is provided with between described first right through hole (61) and the outer wall of described right valve barrel (14), the internal thread for being connected inside and outside two-layer coiled tubing body is processed with respectively at right-hand member and the right-hand member of described right valve barrel (14) of described first right through hole (61), the left end inner wall depression of described first right through hole (61) forms the first right ring-shaped step (71) coordinated with described internal layer back-moving spring (26), left end between described first right through hole (61) and the outer wall of described right valve barrel (14) is also formed with the second right ring-shaped step (72) coordinated with described outer back-moving spring (13),
Described left valve barrel (2) and described right valve barrel (14) are the identical cylinder of external diameter, and the left end of the right-hand member of described left valve barrel (2) and described right valve barrel (14) is threaded connection, described first left through hole (41) is coaxial with described first right through hole (61), described second left through hole (42) and described second right through hole (62) one_to_one corresponding;
The left end of described internal layer piston (24) is pressed on described first left ring-shaped step (51) and forms sealing, right-hand member is pressed on described first right ring-shaped step (71) by described internal layer back-moving spring (26), and the inwall of the outer wall of described internal layer piston (24) and described first left through hole (41), the inwall of described first right through hole (61) coordinates formation sealing, described outer piston bush (6) is on the outer wall of described first left through hole (41) and the outer wall of described first right through hole (61), the left end of described outer piston (6) is pressed on described second left ring-shaped step (52) and forms sealing, right-hand member is pressed on described second right ring-shaped step (72) by described outer back-moving spring (13), and the outer wall of the inwall of described outer piston (6) and described first left through hole (41), the outer wall of described first right through hole (61) coordinates formation sealing,
The space of default size is left between the hole wall and the hole wall of described first left through hole (41) of described first right through hole (61), on the outer wall of described internal layer piston (24) with described space accordingly circumference be evenly provided with multiple inner groovy (30), the inwall of described outer piston (6) is provided with multiple outer groove (31) correspondingly with described inner groovy (30), the bottom of each described outer groove (31) is equipped with a bearing pin back-moving spring (8), one bearing pin (9) heads in described inner groovy (30) by described space by described bearing pin back-moving spring (8), all correspondingly with each described bearing pin (9) in the hole wall of described first right through hole (61) be provided with a blind hole (20), a slide block (22) and slide block back-moving spring (23) is equipped with in each described blind hole (20), described slide block (22) is pressed on described bearing pin (9) by described slide block back-moving spring (23), described outer piston (6) is driven to be synchronized with the movement by described bearing pin (9) when described internal layer piston (24) moves right under left pressure,
The center of described internal layer piston (24) is provided with opening piston blind hole (21) to the right vertically, and the left end of described internal layer piston (24) has been uniformly distributed circumferentially multiple interior connectivity slot (29), for described piston blind hole (21) being communicated with described first left through hole (41) when described internal layer piston (24) moves right;
All correspondingly with each described second left through hole (42) on the outer wall of described outer piston (6) be provided with an outer connectivity slot (32), for being communicated with described second left through hole (42) by described second right through hole (62) when described outer piston (6) moves right.
2. the incorgruous joint control ball-and-seat of binary channels according to claim 1, it is characterized in that, described first left ring-shaped step (51) and described second left ring-shaped step (52) are installed with internal layer piston seat (18) and outer piston seat (5) respectively, described outer piston (6) is pressed on described outer piston seat (5) and forms sealing, and described internal layer piston (24) is pressed on described internal layer piston seat (18) and forms sealing.
3. the incorgruous joint control ball-and-seat of binary channels according to claim 2, it is characterized in that, the inwall of described internal layer piston seat (18) and the left side of described internal layer piston (24) are the conical surface cooperatively interacted, and the inwall of described outer piston seat (5) and the left side of described outer piston (6) are the conical surface cooperatively interacted.
4. the incorgruous joint control ball-and-seat of binary channels according to any one of claim 1 to 3, is characterized in that, described bearing pin (9) is straight pin, and the left side of described slide block (22) is the cambered surface (33) coordinated with described bearing pin.
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| CN201510152589.1A CN104929574B (en) | 2015-04-01 | 2015-04-01 | Dual-channel different-direction joint-control check valve |
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| CN201510152589.1A CN104929574B (en) | 2015-04-01 | 2015-04-01 | Dual-channel different-direction joint-control check valve |
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| CN104929574B CN104929574B (en) | 2017-05-10 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590576A (en) * | 2018-06-21 | 2018-09-28 | 中国石油集团川庆钻探工程有限公司 | A kind of binary channels can cross ball-type reversed check valve |
| CN111827928A (en) * | 2020-07-23 | 2020-10-27 | 邵玉刚 | Check valve for underground double-layer coiled tubing |
| CN111878033A (en) * | 2020-07-24 | 2020-11-03 | 宁波真格液压科技有限公司 | Underground double-channel check valve |
| CN111878034A (en) * | 2020-07-24 | 2020-11-03 | 邵立坤 | Check valve for downhole tool |
| CN111894517A (en) * | 2020-07-23 | 2020-11-06 | 陈少同 | Underground check valve |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5083609A (en) * | 1990-11-19 | 1992-01-28 | Coleman William P | Down hole jet pump retrievable by reverse flow and well treatment system |
| NO940628L (en) * | 1993-02-24 | 1994-08-25 | Halliburton Co | Flow control assembly for coil tubes |
| US5918674A (en) * | 1996-03-20 | 1999-07-06 | Head; Philip | Casing and method of installing the casing in a well |
| CA2424608A1 (en) * | 2002-12-17 | 2004-06-17 | Abb Vetco Gray Inc. | Drill string shutoff valve |
| US20050087234A1 (en) * | 2002-10-15 | 2005-04-28 | Takasago Engineering Co., Ltd. | Leak-detecting check valve, and leak-detection alarm system that uses said check valve |
| US20100059225A1 (en) * | 2005-06-13 | 2010-03-11 | Kenison Michael H | Flow Reversing Apparatus and Methods of Use |
| CN202031507U (en) * | 2011-05-05 | 2011-11-09 | 中国石油集团川庆钻探工程有限公司 | Check valve applicable to air reverse circulation drilling |
| CN202081844U (en) * | 2010-12-13 | 2011-12-21 | 中国石油天然气集团公司 | Reversing valve in double-barrel blasting well |
| CN202348184U (en) * | 2011-12-14 | 2012-07-25 | 中国石油集团渤海钻探工程有限公司 | Double-wall double-channel single-sealing cock valve |
| CN202673240U (en) * | 2012-07-17 | 2013-01-16 | 中国石油集团长城钻探工程有限公司 | Coiled tubing delivering perforation double-plate type check valve |
| CN202914031U (en) * | 2012-08-01 | 2013-05-01 | 中国石油天然气股份有限公司 | Coiled tubing double-disc check valve |
| CN203394494U (en) * | 2013-07-12 | 2014-01-15 | 中国石油天然气股份有限公司 | Coiled tubing fracturing and pressure conducting reverse circulation tool |
| CN204186325U (en) * | 2014-10-16 | 2015-03-04 | 克拉玛依市尚正石油科技有限公司 | Screw pump Special reverse cyclic cleaning valve |
| CN104453754A (en) * | 2014-11-12 | 2015-03-25 | 中国石油天然气股份有限公司 | Two-way passageway check valve and method for conducting sand-flushing through the same |
| CN204532246U (en) * | 2015-04-01 | 2015-08-05 | 中国石油集团渤海钻探工程有限公司 | The incorgruous joint control ball-and-seat of binary channels |
-
2015
- 2015-04-01 CN CN201510152589.1A patent/CN104929574B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5083609A (en) * | 1990-11-19 | 1992-01-28 | Coleman William P | Down hole jet pump retrievable by reverse flow and well treatment system |
| NO940628L (en) * | 1993-02-24 | 1994-08-25 | Halliburton Co | Flow control assembly for coil tubes |
| US5918674A (en) * | 1996-03-20 | 1999-07-06 | Head; Philip | Casing and method of installing the casing in a well |
| US20050087234A1 (en) * | 2002-10-15 | 2005-04-28 | Takasago Engineering Co., Ltd. | Leak-detecting check valve, and leak-detection alarm system that uses said check valve |
| CA2424608A1 (en) * | 2002-12-17 | 2004-06-17 | Abb Vetco Gray Inc. | Drill string shutoff valve |
| US20100059225A1 (en) * | 2005-06-13 | 2010-03-11 | Kenison Michael H | Flow Reversing Apparatus and Methods of Use |
| CN202081844U (en) * | 2010-12-13 | 2011-12-21 | 中国石油天然气集团公司 | Reversing valve in double-barrel blasting well |
| CN202031507U (en) * | 2011-05-05 | 2011-11-09 | 中国石油集团川庆钻探工程有限公司 | Check valve applicable to air reverse circulation drilling |
| CN202348184U (en) * | 2011-12-14 | 2012-07-25 | 中国石油集团渤海钻探工程有限公司 | Double-wall double-channel single-sealing cock valve |
| CN202673240U (en) * | 2012-07-17 | 2013-01-16 | 中国石油集团长城钻探工程有限公司 | Coiled tubing delivering perforation double-plate type check valve |
| CN202914031U (en) * | 2012-08-01 | 2013-05-01 | 中国石油天然气股份有限公司 | Coiled tubing double-disc check valve |
| CN203394494U (en) * | 2013-07-12 | 2014-01-15 | 中国石油天然气股份有限公司 | Coiled tubing fracturing and pressure conducting reverse circulation tool |
| CN204186325U (en) * | 2014-10-16 | 2015-03-04 | 克拉玛依市尚正石油科技有限公司 | Screw pump Special reverse cyclic cleaning valve |
| CN104453754A (en) * | 2014-11-12 | 2015-03-25 | 中国石油天然气股份有限公司 | Two-way passageway check valve and method for conducting sand-flushing through the same |
| CN204532246U (en) * | 2015-04-01 | 2015-08-05 | 中国石油集团渤海钻探工程有限公司 | The incorgruous joint control ball-and-seat of binary channels |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590576A (en) * | 2018-06-21 | 2018-09-28 | 中国石油集团川庆钻探工程有限公司 | A kind of binary channels can cross ball-type reversed check valve |
| CN108590576B (en) * | 2018-06-21 | 2024-03-01 | 中国石油天然气集团有限公司 | Double-channel ball-passing type reverse check valve |
| CN111827928A (en) * | 2020-07-23 | 2020-10-27 | 邵玉刚 | Check valve for underground double-layer coiled tubing |
| CN111894517A (en) * | 2020-07-23 | 2020-11-06 | 陈少同 | Underground check valve |
| CN111878033A (en) * | 2020-07-24 | 2020-11-03 | 宁波真格液压科技有限公司 | Underground double-channel check valve |
| CN111878034A (en) * | 2020-07-24 | 2020-11-03 | 邵立坤 | Check valve for downhole tool |
| CN111878033B (en) * | 2020-07-24 | 2023-11-10 | 宁波真格液压科技有限公司 | Underground double-channel check valve |
| CN111878034B (en) * | 2020-07-24 | 2023-12-12 | 邵立坤 | Uniflow valve for downhole tool |
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Effective date of registration: 20210820 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: 300457 Tianjin Binhai New Area Development Zone Huanghai Road 106 Bohai Drilling Engineering Co., Ltd. science and Technology Development Office Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |