CN103470214A - Multistage hydraulic bridge plug setting device - Google Patents
Multistage hydraulic bridge plug setting device Download PDFInfo
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- CN103470214A CN103470214A CN2013104173537A CN201310417353A CN103470214A CN 103470214 A CN103470214 A CN 103470214A CN 2013104173537 A CN2013104173537 A CN 2013104173537A CN 201310417353 A CN201310417353 A CN 201310417353A CN 103470214 A CN103470214 A CN 103470214A
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Abstract
The invention relates to the technical field of bridge plug setting devices, particularly to a multistage hydraulic bridge plug setting device. The multistage hydraulic bridge plug setting device comprises a driving device, an upper connecting device, a hydraulic pump, a check valve, a transmission shaft, a piston rod and a lower connecting device; an upper joint is fixedly arranged on the outer side of the lower portion of the driving device; the inner side of the upper end of the upper connecting device and the outer side of the lower portion of the upper joint are fixedly arranged together; the inner side of the lower end of the upper connecting device and the outer side of the upper portion of the check valve are fixedly arranged together. According to the multistage hydraulic bridge plug setting device, the structure is reasonable and compact and the usage is convenient; during suppression, a shear pin shears off, so that the lower connecting device moves downward to be disconnected with a bridge plug and accordingly the formation is sealed through the downhole setting bridge plug; pressure is relieved through detachment and looseness of a pressing cap which is arranged on the check valve after setting is performed on the bridge plug and the bridge plug can be reset to the initial state without disassembly and maintenance, so that the multistage hydraulic bridge plug setting device is safe and reliable and reusable, the safety hidden trouble is eliminated, the production cost and the labor intensity of operators are reduced, and the production efficiency is improved.
Description
Technical field
the present invention relates to bridging plug seating and sealing unit technical field, is a kind of multistage hydraulic bridging plug seating and sealing unit.
Background technology
because setting bridging plug stratum closing process, cable there is short construction period, the characteristics such as the accurate location of bridging plug envelope potential energy and operating expenses are cheap, in the stratum sealing technique of each elephant, generally adopt at home, yet having, traditional bridging plug setting tool need to adopt the percussion powder blast to provide the cable that power sets to set the bridging plug instrument, three kinds of the setting tools that simple electronic setting tool and the pitching of tubing transmission ground are suppressed, but there are following problems in these three kinds of setting tools: 1. electric cable bridge plug setting tool and the every use of tubing transmission ground pitching setting tool once all will be disintegrated maintenance once, increased operating personnel's labour intensity, and each accessory bag that all needs the instrument of changing, cost is high, and be prone to the assembling error, thereby cause the generation of down-hole accident, 2. though simple electronic bridging plug setting tool is reusable, use motor to carry out return, motor reuse the application life that affect motor, the while also affects the application life of cable.Each oil field is more and more higher to the requirement of construction quality at present, also more and more tighter to the control of cost, people's protection is also being strengthened gradually, so existing bridging plug setting tool can not meet the requirement of existing technique simultaneously.
Summary of the invention
the invention provides a kind of multistage hydraulic bridging plug seating and sealing unit, overcome the deficiency of above-mentioned prior art, it can effectively solve the problem that existing bridging plug setting tool can not meet existing technological requirement.
technical scheme of the present invention realizes by following measures: a kind of multistage hydraulic bridging plug seating and sealing unit comprises drive unit, upper linkage, hydraulic pump, one way valve, power transmission shaft, piston rod and lower connecting device; Lower outside at drive unit is installed with top connection, the inboard, upper end of upper linkage and the lower outside of top connection are fixedly installed togather, the lower end of upper linkage upper outside inboard and one way valve is fixedly installed togather, and the inboard, upper end of lower connecting device and the lower outside of one way valve are fixed together by the shear pin of at least one; One end of the clutch end of drive unit and power transmission shaft is fixedly installed togather by the connecting key bar, the other end of power transmission shaft and the power intake of hydraulic pump are fixedly installed togather, the port of export of hydraulic pump and the liquid feeding end of one way valve are fixedly installed togather, one end of the outlet end of one way valve and piston rod is fixedly installed togather, circulation passage is arranged vertically at the middle part of piston rod and be connected with the outlet end of one way valve, in the lower end of piston rod, one is fixed with the plug that can block circulation passage; Power transmission shaft is set in the inboard of top connection and upper linkage, form upper liquid storage cylinder and lower liquid storage cylinder between top connection, upper linkage, one way valve, hydraulic pump and power transmission shaft, the intercommunicating pore be connected with upper liquid storage cylinder and lower liquid storage cylinder of at least one is arranged on upper linkage; Inboard at lower connecting device is fixed with the interior ring platform of at least two in interval from top to bottom, interior ring platform is sleeved on the outside of piston rod, on the piston rod between one way valve and adjacent interior ring platform, between adjacent two interior ring platforms, be fixed with respectively piston on the piston rod of position on the lower, piston bush is contained in the inboard of lower connecting device, form respectively hydraulic cavities between piston and adjacent interior ring platform, the inlet opening be connected with circulation passage and corresponding hydraulic cavities that along circumference at least one is arranged respectively on piston rod.
below the further optimization and/or improvements to the foregoing invention technical scheme:
above-mentioned lower connecting device comprises the first cylindrical shell, the second cylindrical shell and the 3rd cylindrical shell, the first cylindrical shell and the second cylindrical shell are fixedly installed togather by the first joint, the second cylindrical shell and the 3rd cylindrical shell are fixedly installed togather by the second joint, the lower outside of the inboard and one way valve in the upper end of the first cylindrical shell is fixed together by the shear pin of at least one, in the lower inside of the first cylindrical shell, the second cylindrical shell and the 3rd cylindrical shell, is fixed with respectively interior ring platform, piston rod comprises head rod, the second connecting rod and the 3rd connecting rod, head rod, the second connecting rod and the 3rd connecting rod are fixedly installed togather by snap close successively, the upper end of head rod and the outlet end of one way valve are fixedly installed togather, at head rod, the outside, middle part of the second connecting rod and the 3rd connecting rod one respectively is fixed with piston, head rod, piston on the second connecting rod and the 3rd connecting rod is set in the first cylindrical shell, on the second cylindrical shell and the 3rd cylindrical shell, the first joint and the second joint are set on the second cylindrical shell and the 3rd cylindrical shell, the first cylindrical shell, interior ring platform on the second cylindrical shell and the 3rd cylindrical shell is set in head rod, on the second connecting rod and the 3rd connecting rod, between interior ring platform and the piston on the second connecting rod between interior ring platform and the piston on head rod on the first cylindrical shell, on the second cylindrical shell, between the interior ring platform on the 3rd cylindrical shell and the piston on the 3rd connecting rod, form respectively hydraulic cavities, at the middle part of the first cylindrical shell, the second cylindrical shell and the 3rd cylindrical shell, circulation passage arranged respectively vertically and be connected with the outlet end of one way valve, in the lower end one of the 3rd cylindrical shell, being fixed with the plug that can block circulation passage, the inlet opening be connected with circulation passage and corresponding hydraulic cavities that along circumference at least one is arranged respectively on the first cylindrical shell, the second cylindrical shell and the 3rd cylindrical shell.
above-mentioned upper linkage comprises connecting cylinder, transition joint and lower connecting cylinder; The inboard, upper end of upper connecting cylinder and the lower outside of top connection are fixedly installed togather, the inboard, lower end of upper connecting cylinder and the upper outside of transition joint are fixedly installed togather, the inboard, upper end of lower connecting cylinder and the lower outside of transition joint are fixedly installed togather, the lower end of lower connecting cylinder upper outside inboard and one way valve is fixedly installed togather, and is installed with the hydraulic pump adapter sleeve between hydraulic pump and one way valve; Transition joint is sleeved on power transmission shaft, upper liquid storage cylinder between top connection, upper connecting cylinder, transition joint and power transmission shaft, form lower liquid storage cylinder between transition joint, lower connecting cylinder, one way valve, hydraulic pump adapter sleeve, hydraulic pump and power transmission shaft, the intercommunicating pore be connected with upper liquid storage cylinder and lower liquid storage cylinder of at least one is arranged vertically in transition joint.
above-mentioned drive unit is motor, is installed with key bar adapter sleeve on motor, and key bar adapter sleeve is between connecting key bar and top connection; Be installed with the 3rd joint in the lower end of the 3rd cylindrical shell, the 3rd fitting sleeve is contained on plug.
above-mentioned one way valve comprises valve body, ball sealer and pressure cap; Inside at valve body has fluid course vertically, the installing hole and the opening that in the right side central of valve body, radially have respectively diameter that be connected with fluid course, from outside to inside to reduce successively, ball sealer be positioned at installing hole left part and the seat on opening, be installed with pressure cap and be pressed on ball sealer on installing hole, in the right upper portion of valve body, the spill port be connected with the left part of installing hole being arranged vertically; Spill port and lower liquid storage cylinder are connected, the port of export of hydraulic pump and the liquid feeding end of valve body is fixedly installed togather and be connected with fluid course, the lower end of lower connecting cylinder upper outside inboard and valve body is fixedly installed togather, and the inboard, upper end of the first cylindrical shell and the lower outside of valve body are fixed together by the shear pin of at least one.
external screw thread is arranged at the above-mentioned top at valve body; Valve body is step-like that the middle part external diameter is large, the upper and lower external diameter is little.
above-mentioned have opening on the outer face of pressure cap; The external diameter of ball sealer is greater than the internal diameter of spill port; On the inwall of installing hole, internal thread is arranged, pressure cap is fixedly mounted on installing hole by screw thread; In the valve body upper outside near installing hole, at least one sealing mounting groove is arranged along circumference.
above-mentioned motor and top connection are fixedly installed togather by bolt and screw rod, power transmission shaft and hydraulic pump are fixedly installed togather by bolt and screw rod, top connection and upper connecting cylinder are fixedly installed togather by screw thread, upper connecting cylinder and transition joint are fixedly installed togather by screw thread, transition joint and lower connecting cylinder are fixedly installed togather by screw thread, lower connecting cylinder and one way valve are fixedly installed togather by screw thread, the first cylindrical shell and the second cylindrical shell respectively with the first joint are fixedly installed togather by screw thread, the second cylindrical shell and the 3rd cylindrical shell respectively with the second joint are fixedly installed togather by screw thread, head rod and one way valve are fixedly installed togather by screw thread, be installed with V-shaped seal ring between top connection and power transmission shaft, between transition joint and power transmission shaft, be installed with V-shaped seal ring, be installed with O RunddichtringO at least together between top connection and upper connecting cylinder, be installed with O RunddichtringO at least together between top connection and transition joint, be installed with O RunddichtringO at least together between transition joint and lower connecting cylinder, be installed with O RunddichtringO at least together between lower connecting cylinder and one way valve, be installed with O RunddichtringO at least together between one way valve and the first cylindrical shell, the O RunddichtringO together with being installed with respectively at least between the first joint at the first cylindrical shell and the second cylindrical shell, the O RunddichtringO together with being installed with respectively at least between the second joint at the second cylindrical shell and the 3rd cylindrical shell, be installed with O RunddichtringO at least together between the 3rd cylindrical shell and lower contact, be installed with O RunddichtringO at least together between piston on head rod and the first cylindrical shell, be installed with O RunddichtringO at least together between piston on the second connecting rod and the second cylindrical shell, be installed with O RunddichtringO at least together between piston on the 3rd connecting rod and the 3rd cylindrical shell, be installed with O RunddichtringO at least together between interior ring platform on the first cylindrical shell and head rod, be installed with O RunddichtringO at least together between interior ring platform on the second cylindrical shell and the second connecting rod, be installed with O RunddichtringO at least together between interior ring platform on the 3rd cylindrical shell and the 3rd connecting rod, be installed with O RunddichtringO at least together between lower contact and plug.
reasonable and compact in structure of the present invention, easy to use, while suppressing, thereby shear pin is cut off and lower connecting device is moved down disconnect and being connected of bridging plug, realize that down-hole sets bridging plug sealing stratum, after bridging plug sets, by after loosening the pressure cap pressure release on one way valve and be reset to original state, do not need the dismounting maintenance, there are safe and reliable and reusable characteristics, stop potential safety hazard, reduced cost of production and operating personnel's labour intensity, improved production efficiency.
The accompanying drawing explanation
accompanying drawing 1 is looked the sectional structure schematic diagram for the master of most preferred embodiment of the present invention.
the master that accompanying drawing 2 is one way valve in the present invention looks and analyses and observe the structure for amplifying schematic diagram.
coding in accompanying drawing is respectively: 1 is valve body, 2 is ball sealer, 3 is pressure cap, 4 is fluid course, 5 is installing hole, 6 is opening, 7 is spill port, 8 is opening, 9 is the sealing mounting groove, 10 is one way valve, 11 is power transmission shaft, 12 is top connection, 13 is shear pin, 14 is the connecting key bar, 15 is hydraulic pump, 16 is circulation passage, 17 is plug, 18 is upper liquid storage cylinder, 19 is lower liquid storage cylinder, 20 is intercommunicating pore, 21 is interior ring platform, 22 is piston, 23 is hydraulic cavities, 24 is inlet opening, 25 is the first cylindrical shell, 26 is the second cylindrical shell, 27 is the 3rd cylindrical shell, 28 is the first joint, 29 is the second joint, 30 is head rod, 31 is the second connecting rod, 32 is the 3rd connecting rod, 33 is snap close, 34 is upper connecting cylinder, 35 is transition joint, 36 is lower connecting cylinder, 37 is the hydraulic pump adapter sleeve, 38 is motor, 39 is key bar adapter sleeve, 40 is lower contact, 41 is V-shaped seal ring, 42 is the O RunddichtringO, 43 for setting cylinder, 44 is the bridging plug pull bar.
The specific embodiment
the present invention is not subject to the restriction of following embodiment, can determine concrete embodiment according to technical scheme of the present invention and actual conditions.
in the present invention, for convenience of description, the description of the relative position relation of each parts is all to be described according to the Butut mode of manual 1, as: the position relationship of forward and backward, upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description 1.
below in conjunction with embodiment and accompanying drawing, the invention will be further described:
as shown in Figure 1, this multistage hydraulic bridging plug seating and sealing unit comprises drive unit, upper linkage, hydraulic pump 15, one way valve 10, power transmission shaft 11, piston rod and lower connecting device; Lower outside at drive unit is installed with top connection 12, the inboard, upper end of upper linkage and the lower outside of top connection 12 are fixedly installed togather, the lower end of upper linkage upper outside inboard and one way valve 10 is fixedly installed togather, and the inboard, upper end of lower connecting device and the lower outside of one way valve 10 are fixed together by the shear pin 13 of at least one; One end of the clutch end of drive unit and power transmission shaft 11 is fixedly installed togather by connecting key bar 14, the power intake of the other end of power transmission shaft 11 and hydraulic pump 15 is fixedly installed togather, the liquid feeding end of the port of export of hydraulic pump 15 and one way valve 10 is fixedly installed togather, one end of the outlet end of one way valve 10 and piston rod is fixedly installed togather, circulation passage 16 arranged vertically at the middle part of piston rod and be connected with the outlet end of one way valve 10, being fixed with the plug 17 that can block circulation passage 16 in the lower end of piston rod one; Power transmission shaft 11 is set in the inboard of top connection 12 and upper linkage, form upper liquid storage cylinder 18 and lower liquid storage cylinder 19 between top connection 12, upper linkage, one way valve 10, hydraulic pump 15 and power transmission shaft 11, the intercommunicating pore 20 be connected with upper liquid storage cylinder 18 and lower liquid storage cylinder 19 of at least one is arranged on upper linkage; Inboard at lower connecting device is fixed with the interior ring platform 21 of at least two in interval from top to bottom, interior ring platform 21 is sleeved on the outside of piston rod, on the piston rod between one way valve 10 and adjacent interior ring platform 21, between adjacent two interior ring platforms 21, be fixed with respectively piston 22 on the piston rod of position on the lower, piston 22 is sleeved on the inboard of lower connecting device, form respectively hydraulic cavities 23 between piston 22 and adjacent interior ring platform 21, the inlet opening 24 be connected with circulation passage 16 and corresponding hydraulic cavities 23 that along circumference at least one is arranged respectively on piston rod.
can according to actual needs, above-mentioned multistage hydraulic bridging plug seating and sealing unit be made further optimization and/or improvements:
as shown in Figure 1, lower connecting device comprises the first cylindrical shell 25, the second cylindrical shell 26 and the 3rd cylindrical shell 27, the first cylindrical shell 25 and the second cylindrical shell 26 are fixedly installed togather by the first joint 28, the second cylindrical shell 26 and the 3rd cylindrical shell 27 are fixedly installed togather by the second joint 29, the lower outside of the inboard and one way valve 10 in the upper end of the first cylindrical shell 25 is fixed together by the shear pin 13 of at least one, in the lower inside of the first cylindrical shell 25, the second cylindrical shell 26 and the 3rd cylindrical shell 27, is fixed with respectively interior ring platform 21, piston rod comprises head rod 30, the second connecting rod 31 and the 3rd connecting rod 32, head rod 30, the second connecting rod 31 and the 3rd connecting rod 32 are fixedly installed togather by snap close 33 successively, the outlet end of the upper end of head rod 30 and one way valve 10 is fixedly installed togather, at head rod 30, the outside, middle part of the second connecting rod 31 and the 3rd connecting rod 32 one respectively is fixed with piston 22, head rod 30, piston 22 on the second connecting rod 31 and the 3rd connecting rod 32 is set in the first cylindrical shell 25, on the second cylindrical shell 26 and the 3rd cylindrical shell 27, the first joint 28 and the second joint 29 are set on the second cylindrical shell 26 and the 3rd cylindrical shell 27, the first cylindrical shell 25, interior ring platform 21 on the second cylindrical shell 26 and the 3rd cylindrical shell 27 is set in head rod 30, on the second connecting rod 31 and the 3rd connecting rod 32, between interior ring platform 21 and the piston 22 on the second connecting rod 31 between interior ring platform 21 and the piston 22 on head rod 30 on the first cylindrical shell 25, on the second cylindrical shell 26, between the interior ring platform 21 on the 3rd cylindrical shell 27 and the piston 22 on the 3rd connecting rod 32, form respectively hydraulic cavities 23, circulation passage 16 arranged respectively vertically and be connected with the outlet end of one way valve 10 at the middle part of the first cylindrical shell 25, the second cylindrical shell 26 and the 3rd cylindrical shell 27, in the lower end one of the 3rd cylindrical shell 27, being fixed with the plug 17 that can block circulation passage 16, the inlet opening 24 be connected with circulation passage 16 and corresponding hydraulic cavities 23 that along circumference at least one is arranged respectively on the first cylindrical shell 25, the second cylindrical shell 26 and the 3rd cylindrical shell 27.
as shown in Figure 1, upper linkage comprises connecting cylinder 34, transition joint 35 and lower connecting cylinder 36; The inboard, upper end of upper connecting cylinder 34 and the lower outside of top connection 12 are fixedly installed togather, the inboard, lower end of upper connecting cylinder 34 and the upper outside of transition joint 35 are fixedly installed togather, the inboard, upper end of lower connecting cylinder 36 and the lower outside of transition joint 35 are fixedly installed togather, the lower end of lower connecting cylinder 36 upper outside inboard and one way valve 10 is fixedly installed togather, and between hydraulic pump 15 and one way valve 10, is installed with hydraulic pump adapter sleeve 37; Transition joint 35 is sleeved on power transmission shaft 11, upper liquid storage cylinder 18 between top connection 12, upper connecting cylinder 34, transition joint 35 and power transmission shaft 11, form lower liquid storage cylinder 19 between transition joint 35, lower connecting cylinder 36, one way valve 10, hydraulic pump adapter sleeve 37, hydraulic pump 15 and power transmission shaft 11, the intercommunicating pore 20 be connected with upper liquid storage cylinder 18 and lower liquid storage cylinder 19 of at least one is arranged vertically in transition joint 35.Like this, transition joint 35 has prevented that flexural buckling from appearring in power transmission shaft 11 in transmission process.
as shown in Figure 1, drive unit is motor 38, is installed with key bar adapter sleeve 39 on motor 38, and key bar adapter sleeve 39 is between connecting key bar 14 and top connection 12; Be installed with lower contact 40 in the lower end of the 3rd cylindrical shell 27, lower contact 40 is sleeved on plug 17.During use, lower contact 40 is fixedly mounted on and sets on cylinder 43, and plug 17 is fixedly mounted on bridging plug pull bar 44.
as shown in accompanying drawing 1,2, one way valve 10 comprises valve body 1, ball sealer 2 and pressure cap 3; Inside at valve body 1 has fluid course 4 vertically, the installing hole 5 and the opening 6 that in the right side central of valve body 1, radially have respectively diameter that be connected with fluid course 4, from outside to inside to reduce successively, ball sealer 2 be positioned at installing hole 5 left part and the seat on opening 6, be installed with pressure cap 3 and be pressed on ball sealer 2 on installing hole 5, in the right upper portion of valve body 1, the spill port 7 be connected with the left part of installing hole 5 being arranged vertically; Spill port 7 and lower liquid storage cylinder 19 are connected, the liquid feeding end of the port of export of hydraulic pump 15 and valve body 1 is fixedly installed togather and is connected with fluid course 4, the lower end of lower connecting cylinder 36 upper outside inboard and valve body 1 is fixedly installed togather, and the inboard, upper end of the first cylindrical shell 25 and the lower outside of valve body 1 are fixed together by the shear pin 13 of at least one.
as shown in accompanying drawing 1,2, on the top of valve body 1, external screw thread is arranged; Valve body 1 is step-like that the middle part external diameter is large, the upper and lower external diameter is little.
as shown in accompanying drawing 1,2, be provided with opening 8 on the outer face of pressure cap 3; The external diameter of ball sealer 2 is greater than the internal diameter of spill port 7; On the inwall of installing hole 5, internal thread is arranged, pressure cap 3 is fixedly mounted on installing hole 5 by screw thread; In valve body 1 upper outside near installing hole 5, at least one sealing mounting groove 9 is arranged along circumference.Like this, be provided with opening 8 on the outer face of pressure cap 3, instrument easy to use tightens pressure cap 3 or loosens pressure cap 3; The external diameter of ball sealer 2 is greater than the internal diameter of spill port 7, prevents that ball sealer 2 from entering in spill port 7.On the inwall of installing hole 5, internal thread is arranged, be convenient to the installation and removal of pressure cap 3.
as shown in Figure 1, motor 38 and top connection 12 are fixedly installed togather by bolt and screw rod, power transmission shaft 11 and hydraulic pump 15 are fixedly installed togather by bolt and screw rod, top connection 12 and upper connecting cylinder 34 are fixedly installed togather by screw thread, upper connecting cylinder 34 and transition joint 35 are fixedly installed togather by screw thread, transition joint 35 and lower connecting cylinder 36 are fixedly installed togather by screw thread, lower connecting cylinder 36 and one way valve 10 are fixedly installed togather by screw thread, the first cylindrical shell 25 and the second cylindrical shell 26 respectively with the first joints 28 are fixedly installed togather by screw thread, the second cylindrical shell 26 and the 3rd cylindrical shell 27 respectively with the second joints 29 are fixedly installed togather by screw thread, head rod 30 and one way valve 10 are fixedly installed togather by screw thread, be installed with V-shaped seal ring 41 between top connection 12 and power transmission shaft 11, between transition joint 35 and power transmission shaft 11, be installed with V-shaped seal ring 41, be installed with O RunddichtringO 42 at least together between top connection 12 and upper connecting cylinder 34, be installed with O RunddichtringO 42 at least together between top connection 12 and transition joint 35, be installed with O RunddichtringO 42 at least together between transition joint 35 and lower connecting cylinder 36, be installed with O RunddichtringO 42 at least together between lower connecting cylinder 36 and one way valve 10, be installed with O RunddichtringO 42 at least together between one way valve 10 and the first cylindrical shell 25, the O RunddichtringO 42 together with being installed with respectively at least between the first joint 28 at the first cylindrical shell 25 and the second cylindrical shell 26, the O RunddichtringO 42 together with being installed with respectively at least between the second joint 29 at the second cylindrical shell 26 and the 3rd cylindrical shell 27, be installed with O RunddichtringO 42 at least together between the 3rd cylindrical shell 27 and lower contact 40, be installed with O RunddichtringO 42 at least together between piston 22 on head rod 30 and the first cylindrical shell 25, be installed with O RunddichtringO 42 at least together between piston 22 on the second connecting rod 31 and the second cylindrical shell 26, be installed with O RunddichtringO 42 at least together between piston 22 on the 3rd connecting rod 32 and the 3rd cylindrical shell 27, be installed with O RunddichtringO 42 at least together between interior ring platform 21 on the first cylindrical shell 25 and head rod 30, be installed with O RunddichtringO 42 at least together between interior ring platform 21 on the second cylindrical shell 26 and the second connecting rod 31, be installed with O RunddichtringO 42 at least together between interior ring platform 21 on the 3rd cylindrical shell 27 and the 3rd connecting rod 32, be installed with O RunddichtringO 42 at least together between lower contact 40 and plug 17.Like this, V-shaped seal ring 41 and O RunddichtringO 42 are convenient to better sealing.
above technical characterictic has formed most preferred embodiment of the present invention, and it has stronger compliance and best implementation result, can increase and decrease according to actual needs non-essential technical characterictic, meets the demand of different situations.
the use procedure of most preferred embodiment of the present invention: during use, lower contact 40 is fixedly mounted on and sets on cylinder 43, plug 17 is fixedly mounted on bridging plug pull bar 44, the output of motor 38 drives hydraulic pump 15 by power transmission shaft 11 and rotates, hydraulic pump 15 passes through the fluid course 4 on one way valve 10 by the liquid in upper liquid storage cylinder 18 and lower liquid storage cylinder 19, head rod 30, circulation passage 16 on the second connecting rod 31 and the 3rd connecting rod 32 and inlet opening 24 enter in each hydraulic cavities 23, liquid in each hydraulic cavities 23 pushes ring platform 21 in each, shear pin 13 is cut off and is made the first cylindrical shell 25, the second cylindrical shell 26, the 3rd cylindrical shell 27, the first joint 28, the second joint 29 and lower contact 40 are descending, promote bridging plug by the cylinder 43 that sets be connected in lower contact 40, because discharging ring, bridging plug is connected on plug 17 by bridging plug pull bar 44, therefore setting cylinder 43 promotes bridging plug slips and struts and be fixed on casing wall, continue descending promotion bridging plug stripper rubber and strut the Sealed casing pipe top and the bottom, continue descending, when descending power is greater than the relay of bridging plug release ring, descending power is broken and is discharged ring, thereby disconnection the present invention is connected with bridging plug, realize that down-hole sets the purpose on bridging plug sealing stratum, after under completed well, bridging plug sets, to in the present invention, carry to ground, loosen the pressure cap on one way valve 10 with flat mouthful of bottle opener, liquid-driving ball sealer in each hydraulic cavities 23 is up, the spill port of opening on one way valve 10 makes in the supreme liquid storage cylinder 18 of liquid backflow and lower liquid storage cylinder 19, thereby make the first cylindrical shell 25, the second cylindrical shell 26 and the 3rd cylindrical shell 27 be reset to original state, and assemble without demounting tool.
Claims (8)
1. a multistage hydraulic bridging plug seating and sealing unit, is characterized in that comprising drive unit, upper linkage, hydraulic pump, one way valve, power transmission shaft, piston rod and lower connecting device; Lower outside at drive unit is installed with top connection, the inboard, upper end of upper linkage and the lower outside of top connection are fixedly installed togather, the lower end of upper linkage upper outside inboard and one way valve is fixedly installed togather, and the inboard, upper end of lower connecting device and the lower outside of one way valve are fixed together by the shear pin of at least one; One end of the clutch end of drive unit and power transmission shaft is fixedly installed togather by the connecting key bar, the other end of power transmission shaft and the power intake of hydraulic pump are fixedly installed togather, the port of export of hydraulic pump and the liquid feeding end of one way valve are fixedly installed togather, one end of the outlet end of one way valve and piston rod is fixedly installed togather, circulation passage is arranged vertically at the middle part of piston rod and be connected with the outlet end of one way valve, in the lower end of piston rod, one is fixed with the plug that can block circulation passage; Power transmission shaft is set in the inboard of top connection and upper linkage, form upper liquid storage cylinder and lower liquid storage cylinder between top connection, upper linkage, one way valve, hydraulic pump and power transmission shaft, the intercommunicating pore be connected with upper liquid storage cylinder and lower liquid storage cylinder of at least one is arranged on upper linkage; Inboard at lower connecting device is fixed with the interior ring platform of at least two in interval from top to bottom, interior ring platform is sleeved on the outside of piston rod, on the piston rod between one way valve and adjacent interior ring platform, between adjacent two interior ring platforms, be fixed with respectively piston on the piston rod of position on the lower, piston bush is contained in the inboard of lower connecting device, form respectively hydraulic cavities between piston and adjacent interior ring platform, the inlet opening be connected with circulation passage and corresponding hydraulic cavities that along circumference at least one is arranged respectively on piston rod.
2. multistage hydraulic bridging plug seating and sealing unit according to claim 1, is characterized in that lower connecting device comprises the first cylindrical shell, the second cylindrical shell and the 3rd cylindrical shell, the first cylindrical shell and the second cylindrical shell are fixedly installed togather by the first joint, the second cylindrical shell and the 3rd cylindrical shell are fixedly installed togather by the second joint, the lower outside of the inboard and one way valve in the upper end of the first cylindrical shell is fixed together by the shear pin of at least one, in the lower inside of the first cylindrical shell, the second cylindrical shell and the 3rd cylindrical shell, is fixed with respectively interior ring platform, piston rod comprises head rod, the second connecting rod and the 3rd connecting rod, head rod, the second connecting rod and the 3rd connecting rod are fixedly installed togather by snap close successively, the upper end of head rod and the outlet end of one way valve are fixedly installed togather, at head rod, the outside, middle part of the second connecting rod and the 3rd connecting rod one respectively is fixed with piston, head rod, piston on the second connecting rod and the 3rd connecting rod is set in the first cylindrical shell, on the second cylindrical shell and the 3rd cylindrical shell, the first joint and the second joint are set on the second cylindrical shell and the 3rd cylindrical shell, the first cylindrical shell, interior ring platform on the second cylindrical shell and the 3rd cylindrical shell is set in head rod, on the second connecting rod and the 3rd connecting rod, between interior ring platform and the piston on the second connecting rod between interior ring platform and the piston on head rod on the first cylindrical shell, on the second cylindrical shell, between the interior ring platform on the 3rd cylindrical shell and the piston on the 3rd connecting rod, form respectively hydraulic cavities, at the middle part of the first cylindrical shell, the second cylindrical shell and the 3rd cylindrical shell, circulation passage arranged respectively vertically and be connected with the outlet end of one way valve, in the lower end one of the 3rd cylindrical shell, being fixed with the plug that can block circulation passage, the inlet opening be connected with circulation passage and corresponding hydraulic cavities that along circumference at least one is arranged respectively on the first cylindrical shell, the second cylindrical shell and the 3rd cylindrical shell.
3. multistage hydraulic bridging plug seating and sealing unit according to claim 1 and 2, is characterized in that linkage comprises connecting cylinder, transition joint and lower connecting cylinder; The inboard, upper end of upper connecting cylinder and the lower outside of top connection are fixedly installed togather, the inboard, lower end of upper connecting cylinder and the upper outside of transition joint are fixedly installed togather, the inboard, upper end of lower connecting cylinder and the lower outside of transition joint are fixedly installed togather, the lower end of lower connecting cylinder upper outside inboard and one way valve is fixedly installed togather, and is installed with the hydraulic pump adapter sleeve between hydraulic pump and one way valve; Transition joint is sleeved on power transmission shaft, upper liquid storage cylinder between top connection, upper connecting cylinder, transition joint and power transmission shaft, form lower liquid storage cylinder between transition joint, lower connecting cylinder, one way valve, hydraulic pump adapter sleeve, hydraulic pump and power transmission shaft, the intercommunicating pore be connected with upper liquid storage cylinder and lower liquid storage cylinder of at least one is arranged vertically in transition joint.
4. according to claim 1 or 2 or 3 described multistage hydraulic bridging plug seating and sealing units, it is characterized in that drive unit is motor, be installed with key bar adapter sleeve on motor, key bar adapter sleeve is between connecting key bar and top connection; Be installed with the 3rd joint in the lower end of the 3rd cylindrical shell, the 3rd fitting sleeve is contained on plug.
5. according to claim 1 or 2 or 3 or 4 described multistage hydraulic bridging plug seating and sealing units, it is characterized in that one way valve comprises valve body, ball sealer and pressure cap; Inside at valve body has fluid course vertically, the installing hole and the opening that in the right side central of valve body, radially have respectively diameter that be connected with fluid course, from outside to inside to reduce successively, ball sealer be positioned at installing hole left part and the seat on opening, be installed with pressure cap and be pressed on ball sealer on installing hole, in the right upper portion of valve body, the spill port be connected with the left part of installing hole being arranged vertically; Spill port and lower liquid storage cylinder are connected, the port of export of hydraulic pump and the liquid feeding end of valve body is fixedly installed togather and be connected with fluid course, the lower end of lower connecting cylinder upper outside inboard and valve body is fixedly installed togather, and the inboard, upper end of the first cylindrical shell and the lower outside of valve body are fixed together by the shear pin of at least one.
6. multistage hydraulic bridging plug seating and sealing unit according to claim 5, is characterized in that, on the top of valve body, external screw thread is arranged; Valve body is step-like that the middle part external diameter is large, the upper and lower external diameter is little.
7. according to the described multistage hydraulic bridging plug of claim 5 or 6 seating and sealing unit, it is characterized in that, on the outer face of pressure cap, opening is arranged; The external diameter of ball sealer is greater than the internal diameter of spill port; On the inwall of installing hole, internal thread is arranged, pressure cap is fixedly mounted on installing hole by screw thread; In the valve body upper outside near installing hole, at least one sealing mounting groove is arranged along circumference.
8. according to claim 4 or 5 or 6 or 7 described multistage hydraulic bridging plug seating and sealing units, it is characterized in that motor and top connection are fixedly installed togather by bolt and screw rod, power transmission shaft and hydraulic pump are fixedly installed togather by bolt and screw rod, top connection and upper connecting cylinder are fixedly installed togather by screw thread, upper connecting cylinder and transition joint are fixedly installed togather by screw thread, transition joint and lower connecting cylinder are fixedly installed togather by screw thread, lower connecting cylinder and one way valve are fixedly installed togather by screw thread, the first cylindrical shell and the second cylindrical shell respectively with the first joint are fixedly installed togather by screw thread, the second cylindrical shell and the 3rd cylindrical shell respectively with the second joint are fixedly installed togather by screw thread, head rod and one way valve are fixedly installed togather by screw thread, be installed with V-shaped seal ring between top connection and power transmission shaft, between transition joint and power transmission shaft, be installed with V-shaped seal ring, be installed with O RunddichtringO at least together between top connection and upper connecting cylinder, be installed with O RunddichtringO at least together between top connection and transition joint, be installed with O RunddichtringO at least together between transition joint and lower connecting cylinder, be installed with O RunddichtringO at least together between lower connecting cylinder and one way valve, be installed with O RunddichtringO at least together between one way valve and the first cylindrical shell, the O RunddichtringO together with being installed with respectively at least between the first joint at the first cylindrical shell and the second cylindrical shell, the O RunddichtringO together with being installed with respectively at least between the second joint at the second cylindrical shell and the 3rd cylindrical shell, be installed with O RunddichtringO at least together between the 3rd cylindrical shell and lower contact, be installed with O RunddichtringO at least together between piston on head rod and the first cylindrical shell, be installed with O RunddichtringO at least together between piston on the second connecting rod and the second cylindrical shell, be installed with O RunddichtringO at least together between piston on the 3rd connecting rod and the 3rd cylindrical shell, be installed with O RunddichtringO at least together between interior ring platform on the first cylindrical shell and head rod, be installed with O RunddichtringO at least together between interior ring platform on the second cylindrical shell and the second connecting rod, be installed with O RunddichtringO at least together between interior ring platform on the 3rd cylindrical shell and the 3rd connecting rod, be installed with O RunddichtringO at least together between lower contact and plug.
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| CN201310417353.7A CN103470214B (en) | 2013-09-13 | 2013-09-13 | Multistage hydraulic bridging plug seating and sealing unit |
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| CN201310417353.7A CN103470214B (en) | 2013-09-13 | 2013-09-13 | Multistage hydraulic bridging plug seating and sealing unit |
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| CN103470214B CN103470214B (en) | 2016-04-06 |
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| CN106499361A (en) * | 2016-12-13 | 2017-03-15 | 中国石油集团西部钻探工程有限公司 | Electric-controlled hydraulic automatic setting bridging device |
| CN106761547A (en) * | 2016-12-13 | 2017-05-31 | 中国石油集团西部钻探工程有限公司 | Novel down-hole electronic controlled power is switched |
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| CN107965285A (en) * | 2017-11-27 | 2018-04-27 | 中国石油集团渤海钻探工程有限公司 | A kind of train is driven continuous booster-type electric hydaulic bridge plug setting tool |
| CN108071358A (en) * | 2018-01-03 | 2018-05-25 | 中国石油集团西部钻探工程有限公司 | Electric hydaulic three-level piston packer feeder |
| CN108150121A (en) * | 2017-12-21 | 2018-06-12 | 中国石油集团渤海钻探工程有限公司 | Jet flow pressurizing formula electric hydaulic bridge plug setting tool |
| CN109763784A (en) * | 2017-11-09 | 2019-05-17 | 中国石油化工股份有限公司 | Divide valve bridge plug hydraulic setting tool and its sets method |
| CN109838216A (en) * | 2017-11-29 | 2019-06-04 | 江苏科技大学 | Electric hydaulic reinforcement setting tool for bridge plug |
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| CN107558949A (en) * | 2016-06-30 | 2018-01-09 | 万瑞（北京）科技有限公司 | A kind of electric cable bridge plug setting tool |
| CN107558949B (en) * | 2016-06-30 | 2023-07-11 | 万瑞（北京）科技有限公司 | Cable bridge plug setting tool |
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| CN106499361A (en) * | 2016-12-13 | 2017-03-15 | 中国石油集团西部钻探工程有限公司 | Electric-controlled hydraulic automatic setting bridging device |
| CN106761547A (en) * | 2016-12-13 | 2017-05-31 | 中国石油集团西部钻探工程有限公司 | Novel down-hole electronic controlled power is switched |
| CN106499361B (en) * | 2016-12-13 | 2023-03-14 | 中国石油天然气集团有限公司 | Electric control hydraulic automatic setting bridge plug device |
| CN109763784A (en) * | 2017-11-09 | 2019-05-17 | 中国石油化工股份有限公司 | Divide valve bridge plug hydraulic setting tool and its sets method |
| CN107965285B (en) * | 2017-11-27 | 2019-12-13 | 中国石油集团渤海钻探工程有限公司 | Continuous booster-type electric hydraulic bridge plug setting tool for wheel train transmission |
| CN107965285A (en) * | 2017-11-27 | 2018-04-27 | 中国石油集团渤海钻探工程有限公司 | A kind of train is driven continuous booster-type electric hydaulic bridge plug setting tool |
| CN109838216A (en) * | 2017-11-29 | 2019-06-04 | 江苏科技大学 | Electric hydaulic reinforcement setting tool for bridge plug |
| CN108150121B (en) * | 2017-12-21 | 2019-12-13 | 中国石油集团渤海钻探工程有限公司 | jet flow pressurization type electric hydraulic bridge plug setting tool |
| CN108150121A (en) * | 2017-12-21 | 2018-06-12 | 中国石油集团渤海钻探工程有限公司 | Jet flow pressurizing formula electric hydaulic bridge plug setting tool |
| CN108071358A (en) * | 2018-01-03 | 2018-05-25 | 中国石油集团西部钻探工程有限公司 | Electric hydaulic three-level piston packer feeder |
| CN108071358B (en) * | 2018-01-03 | 2024-03-12 | 中国石油天然气集团有限公司 | Electric hydraulic three-stage piston packer feeding device |
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Effective date of registration: 20201110 Address after: 100120 Beijing Xicheng District six laying Kang Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Xibu Drilling Engineering Co.,Ltd. Address before: 834000 the Xinjiang Uygur Autonomous Region Karamay Friendship Road No. 115 joint office building oil testing company Patentee before: CNPC Xibu Drilling Engineering Co.,Ltd. |