CN102172490A - Reservoir oil foam displacement high-pressure gas quantitative injector - Google Patents
Reservoir oil foam displacement high-pressure gas quantitative injector Download PDFInfo
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- CN102172490A CN102172490A CN2011100588486A CN201110058848A CN102172490A CN 102172490 A CN102172490 A CN 102172490A CN 2011100588486 A CN2011100588486 A CN 2011100588486A CN 201110058848 A CN201110058848 A CN 201110058848A CN 102172490 A CN102172490 A CN 102172490A
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Abstract
The invention discloses a reservoir oil foam displacement high-pressure gas quantitative injector, which relates to the technical field of oil extraction in oil fields. The reservoir oil foam displacement high-pressure gas quantitative injector comprises a first fixed-volume injector and a second fixed-volume injector, wherein the upper end of the first fixed-volume injector is connected with a first connecting pipe, the upper end of the second fixed-volume injector is connected to a second connecting pipe, the first connecting pipe and the second connecting pipe are connected with a third connecting pipe, the third connecting pipe is connected with a membrane type controller, and the membrane type controller is connected with an output pipe; the first connecting pipe is connected with a fourth connecting pipe, the second connecting pipe is connected with a fifth connecting pipe, and the fourth connecting pipe and the fifth connecting pipe are connected with the same air inlet pipe; and the lower end of the first fixed-volume injector is connected with a sixth connecting pipe, the sixth connecting pipe is connected with a seven connecting pipe and an eighth connecting pipe, a liquid cylinder is connected with a ninth connecting pipe through a high-pressure pump, the ninth connecting pipe is connected with the eighth connecting pipe and a tenth connecting pipe, an eleventh connecting pipe is also arranged in the liquid cylinder, and the eleventh connecting pipe and the tenth connecting pipe are connected with a twelfth connecting pipe.
Description
Technical field
The present invention relates to the technical field of recovering the oil in the oil field, relate in particular to a kind of injector to the foam maker injecting gas.
Background technology
Foam flooding has become one of effective well stimulation in oil field.The gas liquid ratio of the special-purpose foam solution of foam flooding has determined the apparent viscosity of aerated fluid, is the important indicator that improves recovery ratio, how to measure, controls gases at high pressure and inject foam maker---be the key technology of foam flooding.The gas liquid ratio that injects the oil well foam in the foam flooding process is even more important, and controls the mixed volume of gases at high pressure usually and realizes by control valve.The method has the following disadvantages: one, controlled quentity controlled variable is inaccurate, and manual adjustment valve error is big; Two, injecting gas at the uniform velocity forms has channeling easily.
Summary of the invention
The objective of the invention is in order to overcome the deficiencies in the prior art, provide a kind of foam flooding gases at high pressure to quantize injector, with gases at high pressure quantitative at the uniform velocity injection foam maker under controlled situation.
The object of the present invention is achieved like this: the foam flooding gases at high pressure quantize injector, comprise high-pressure pump, the first constant volume injector and the second constant volume injector, the upper end of the first constant volume injector connects first tube connector, connect first valve on first tube connector, the upper end of the second constant volume injector connects second tube connector, connect second valve on second tube connector, first tube connector is connected the input of same the 3rd tube connector with the output of second tube connector, the output of the 3rd tube connector connects the membrane type controller, and the membrane type controller connects efferent duct; The output that is connected the 4th tube connector on first tube connector between described first valve and the first constant volume injector, connect the 4th valve on the 4th tube connector, the output that is connected the 5th tube connector on second tube connector between described second valve and the second constant volume injector, connect the 5th valve on the 5th tube connector, the 4th tube connector is connected the output of same air inlet pipe with the input of the 5th tube connector; The lower end of the described first constant volume injector connects the 6th tube connector, the other end of the 6th tube connector connects the input of the 7th tube connector and the output of the 8th tube connector, connect the 7th valve on the 7th tube connector, the output of the 7th tube connector is arranged in the liquid storage cylinder, liquid storage cylinder connects the input of described high-pressure pump by pipeline, the high pressure delivery side of pump connects the input of the 9th tube connector, the output of the 9th tube connector connects the input of described the 8th tube connector and the input of the tenth tube connector, connect the 8th valve on the 8th tube connector, connect the tenth valve on the tenth tube connector, the output of the 11 tube connector also is set in the described liquid storage cylinder, connect the 11 valve on the 11 tube connector, the output of the input of the 11 tube connector and the tenth tube connector is connected same the 12 tube connector, and the other end of the 12 tube connector is connected the lower end of the described second constant volume injector.
The present invention is by above design, under the highly pressurised liquid effect of high-pressure pump, the action that cooperatively interacts by each valve makes the operation by turns of the first constant volume injector, the second constant volume injector, and the control of membrane type controller, can make gases at high pressure by entering the continuous injection of pipe, the continuous homogeneous and controllable of efferent duct output to foam maker.
The first constant volume injector of the present invention comprises first cylindrical shell and first piston, first piston is equipped with in first cylindrical shell, the upper end of first cylindrical shell is provided with first upper plug head, described first upper plug head comprises the first upper plug head enlarged diameter section and the first upper plug head reduced diameter section, the first upper plug head enlarged diameter section is equipped with in first cylindrical shell, the first upper plug head reduced diameter section is arranged on the upper end of the first upper plug head enlarged diameter section, the first upper plug head reduced diameter section is nested with first upper pressing cap outward, first upper pressing cap is connected with described first cylinder screw, the first upper plug head reduced diameter section of first upper pressing cap top radially is provided with annular groove on first, in the annular groove snap ring on first is set on first; Described first upper plug head axially is provided with first top connection, and the upper end of first top connection is connected with described first tube connector, and the lower end of first top connection is connected with described first cylindrical shell; The lower end of described first cylindrical shell is provided with first lower end cap, described first lower end cap comprises the first lower end cap enlarged diameter section and the first lower end cap reduced diameter section, the first lower end cap enlarged diameter section is equipped with in first cylindrical shell, the first lower end cap reduced diameter section is arranged on the lower end of the first lower end cap enlarged diameter section, the first lower end cap reduced diameter section is nested with first lower pressing cap outward, first lower pressing cap is connected with described first cylinder screw, the first lower end cap reduced diameter section of first lower pressing cap below radially is provided with annular groove first time, and snap ring is set first time in first time annular groove; Described first lower end cap axially is provided with first lower contact, the upper end of first lower contact is connected with first cylindrical shell, the lower end of first lower contact is connected with described the 6th tube connector, the sealing of first lower end cap places the first displacement indicating arm, fixedly connected with described first piston in the upper end of the first displacement indicating arm, the lower end of the first displacement indicating arm connects first displacement transducer.
The second constant volume injector of the present invention comprises second cylindrical shell and second piston, second piston is equipped with in second cylindrical shell, the upper end of second cylindrical shell is provided with second upper plug head, described second upper plug head comprises the second upper plug head enlarged diameter section and the second upper plug head reduced diameter section, the second upper plug head enlarged diameter section is equipped with in second cylindrical shell, the second upper plug head reduced diameter section is arranged on the upper end of the second upper plug head enlarged diameter section, the second upper plug head reduced diameter section is nested with second upper pressing cap outward, second upper pressing cap is connected with described second cylinder screw, the second upper plug head reduced diameter section of second upper pressing cap top radially is provided with annular groove on second, in the annular groove snap ring on second is set on second; Described second upper plug head axially is provided with second top connection, and the upper end of second top connection is connected with described second tube connector, and the lower end of second top connection is connected with described second cylindrical shell; The lower end of described second cylindrical shell is provided with second lower end cap, described second lower end cap comprises the second lower end cap enlarged diameter section and the second lower end cap reduced diameter section, the second lower end cap enlarged diameter section is equipped with in second cylindrical shell, the second lower end cap reduced diameter section is arranged on the lower end of the second lower end cap enlarged diameter section, the second lower end cap reduced diameter section is nested with second lower pressing cap outward, second lower pressing cap is connected with described second cylinder screw, the second lower end cap reduced diameter section of second lower pressing cap below radially is provided with annular groove second time, and snap ring is set second time in second time annular groove; Described second lower end cap axially is provided with second lower contact, the upper end of second lower contact is connected with second cylindrical shell, the lower end of second lower contact is connected with described the 6th tube connector, the sealing of second lower end cap places the second displacement indicating arm, fixedly connected with described second piston in the upper end of the second displacement indicating arm, the lower end of the second displacement indicating arm connects second displacement transducer.
Membrane type controller of the present invention comprises the controller lower body, the top of controller lower body connects the controller upper body by at least two screw rods, the controller upper body is provided with controlled pressure input interface and controller epicoele, the controlled pressure input interface is connected with the controller epicoele, and the controller epicoele is arranged on the side of controller upper body towards the controller lower body; The controller lower body is provided with controller cavity of resorption, gas input interface and gas output interface, the controller cavity of resorption is arranged on the side of controller lower body towards the controller upper body, one end of gas input interface is connected with described the 3rd tube connector, the other end of gas input interface is arranged on the side of controller lower body towards the controller upper body, one end of gas output interface is connected with the controller cavity of resorption, the other end of gas output interface is connected with described efferent duct, and sealing is provided with diaphragm between controller epicoele and the controller cavity of resorption.
In order to make more sealing between the first displacement indicating arm and first lower end cap, first sealing ring and first pressure ring are set between the first displacement indicating arm and first lower end cap, first pressure ring is arranged on the below of first sealing ring, and first pressure ring is connected with first lower end cap by first screw.
In order to make more sealing between the second displacement indicating arm and second lower end cap, second sealing ring and second pressure ring are set between the second displacement indicating arm and second lower end cap, second pressure ring is arranged on the below of second sealing ring, and second pressure ring is connected with second lower end cap by second screw.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the structural representation of the first constant volume injector.
Fig. 3 is the structural representation of the second constant volume injector.
Fig. 4 is the structural representation of membrane type controller.
Among the figure, 1 high-pressure pump, 2 the 7th valves, 3 first constant volume injectors, 3-1 first lower contact, 3-2 first lower end cap, the 3-3 first lower end cap sealing ring, 3-4 first lower pressing cap, 3-5 first cylindrical shell, the 3-6 first piston, 3-7 first piston sealing ring, 3-8 first upper pressing cap, snap ring on the 3-9 first, 3-10 first upper plug head, stifled sealing ring on the 3-11 first, 3-12 first bridge screw, 3-13 first pressing plate, the 3-14 first displacement indicating arm, 3-15 first sealing ring, 3-16 first pressure ring, 3-17 first screw, annular groove on the 3-18 first, the 3-19 first upper plug head reduced diameter section, the 3-20 first upper plug head enlarged diameter section, first time snap ring of 3-21, first time annular groove of 3-22,3-23 first top connection, the 3-24 first lower end cap enlarged diameter section, the 3-25 first lower end cap reduced diameter section, 4 second constant volume injectors, 4-1 second lower contact, 4-2 second lower end cap, the 4-3 second lower end cap sealing ring, 4-4 second lower pressing cap, 4-5 second cylindrical shell, 4-6 second piston, 4-7 second piston packing, 4-8 second upper pressing cap, snap ring on the 4-9 second, 4-10 second upper plug head, stifled sealing ring on the 4-11 second, 4-12 second bridge screw, 4-13 second pressing plate, the 4-14 second displacement indicating arm, 4-15 second sealing ring, 4-16 second pressure ring, 4-17 second screw, annular groove on the 4-18 second, the 4-19 second upper plug head reduced diameter section, the 4-20 second upper plug head enlarged diameter section, second time snap ring of 4-21, second time annular groove of 4-22,4-23 second top connection, the 4-24 second lower end cap enlarged diameter section, the 4-25 second lower end cap reduced diameter section, 5 first tube connectors, 6 first valves, 7 second valves, 8 membrane type controllers, 8-1 controller upper body, 8-2 pressure input interface, 8-3 diaphragm, 8-4 controller lower body, 8-5 controller epicoele, 8-6 gas input interface, 8-7 screw rod, 8-8 controller cavity of resorption, 8-9 gas output interface, 9 efferent ducts, 10 air inlet pipe, 11 the 4th valves, 12 the 5th valves, 13 second tube connectors, 14 the 3rd tube connectors, 15 the 4th tube connectors, 16 the tenth valves, 17 the 11 valves, 18 second displacement transducers, 19 first displacement transducers, 20 the 8th valves, 21 liquid storage cylinders, 22 the 5th tube connectors, 23 the 6th tube connectors, 24 the 7th tube connectors, 25 the 8th tube connectors, 26 the 9th tube connectors, 27 the tenth tube connectors, 28 the 11 tube connectors, 29 the 12 tube connectors.
The specific embodiment
As shown in Figure 1, for the foam flooding gases at high pressure quantize injector, comprise high-pressure pump 1, the first constant volume injector 3 and the second constant volume injector 4, the upper end of the first constant volume injector 3 connects first tube connector 5, connect first valve 6 on first tube connector 5, the upper end of the second constant volume injector 4 connects second tube connector 13, connect second valve 7 on second tube connector 13, first tube connector 5 is connected the input of same the 3rd tube connector 14 with the output of second tube connector 13, the output of the 3rd tube connector 14 connects membrane type controller 8, and membrane type controller 8 connects efferent duct 9.The output that is connected the 4th tube connector 15 on first tube connector 5 between first valve 6 and the first constant volume injector 3, connect the 4th valve 11 on the 4th tube connector 15, the output that is connected the 5th tube connector 22 on second tube connector 13 between second valve 7 and the second constant volume injector 4, connect the 5th valve 12, the four tube connectors 15 are connected same air inlet pipe 10 with the input of the 5th tube connector 22 output on the 5th tube connector 22.The lower end of the first constant volume injector 3 connects the 6th tube connector 23, the other end of the 6th tube connector 23 connects the input of the 7th tube connector 24 and the output of the 8th tube connector 25, connect the 7th valve 2 on the 7th tube connector 24, the output of the 7th tube connector 24 is arranged in the liquid storage cylinder 21, liquid storage cylinder 21 connects the input of high-pressure pump 1 by pipeline, the output of high-pressure pump 1 connects the input of the 9th tube connector 26, the output of the 9th tube connector 26 connects the input of the 8th tube connector 25 and the input of the tenth tube connector 27, connect on the 8th tube connector 25 and connect the tenth valve 16 on the 8th valve 20, the ten tube connectors 27.The output of the 11 tube connector 28 also is set in the liquid storage cylinder 21, connect the 11 valve 17 on the 11 tube connector 28, the other end that the output of the input of the 11 tube connector 28 and the tenth tube connector 27 is connected same the 12 tube connector 29, the 12 tube connectors 29 is connected the lower end of the second constant volume injector 4.
As shown in Figure 2, the first constant volume injector 3 comprises the first cylindrical shell 3-5 and first piston 3-6, first piston 3-6 is equipped with in the first cylindrical shell 3-5, the first cylindrical shell 3-5 and first piston 3-6 are provided with two first piston sealing ring 3-7, the upper end of the first cylindrical shell 3-5 is provided with the first upper plug head 3-10, the first upper plug head 3-10 comprises the first upper plug head enlarged diameter section 3-20 and the first upper plug head reduced diameter section 3-19, the first upper plug head enlarged diameter section 3-20 is equipped with in the first cylindrical shell 3-5, stifled sealing ring 3-11 on first is set between the first cylindrical shell 3-5 and the first upper plug head enlarged diameter section 3-20, the first upper plug head reduced diameter section 3-19 is arranged on the upper end of the first upper plug head enlarged diameter section 3-20, the first upper plug head reduced diameter section 3-19 is nested with the first upper pressing cap 3-8 outward, the first upper pressing cap 3-8 is threaded with the first cylindrical shell 3-5, the first upper plug head reduced diameter section 3-19 of first upper pressing cap 3-8 top radially is provided with annular groove 3-18 on first, in the annular groove 3-18 snap ring 3-9 on first is set on first.The first upper plug head 3-10 axially is provided with the first top connection 3-23, and the upper end of the first top connection 3-23 is connected with first tube connector 5, and the lower end of the first top connection 3-23 is connected with the first cylindrical shell 3-5.The lower end of the first cylindrical shell 3-5 is provided with the first lower end cap 3-2, the first lower end cap 3-2 comprises the first lower end cap enlarged diameter section 3-24 and the first lower end cap reduced diameter section 3-25, the first lower end cap enlarged diameter section 3-24 is equipped with in first cylindrical shell, between the first cylindrical shell 3-5 and the first lower end cap enlarged diameter section 3-24 the first lower end cap sealing ring 3-3 is set, the first lower end cap reduced diameter section 3-25 is arranged on the lower end of the first lower end cap enlarged diameter section 3-24, the first lower end cap reduced diameter section 3-25 is nested with the first lower pressing cap 3-4 outward, the first lower pressing cap 3-4 is threaded with the first cylindrical shell 3-5, the first lower end cap reduced diameter section 3-25 of first lower pressing cap 3-4 below radially is provided with annular groove 3-22 first time, and snap ring 3-21 is set first time in first time annular groove 3-22.The first lower end cap 3-2 axially is provided with the first lower contact 3-1, the upper end of the first lower contact 3-1 is connected with the first cylindrical shell 3-5, the lower end of the first lower contact 3-1 is connected 23 pipes and connects with the 6th, first lower end cap 3-2 sealing places the first displacement indicating arm 3-14, the first sealing ring 3-15 and the first pressure ring 3-16 are set between the first displacement indicating arm 3-14 and the first lower end cap 3-2, the first pressure ring 3-16 is arranged on the below of the first sealing ring 3-15, and the first pressure ring 3-16 is connected with the first lower end cap 3-2 by the first screw 3-17.The upper end of the first displacement indicating arm 3-14 connects the first pressing plate 3-13, and the first pressing plate 3-13 is fixedlyed connected with first piston 3-6 by the first bridge screw 3-12, and the lower end of the first displacement indicating arm 3-14 connects first displacement transducer 19.
As shown in Figure 3, the second constant volume injector 4 comprises the second cylindrical shell 4-5 and the second piston 4-6, the second piston 4-6 is equipped with in the second cylindrical shell 4-5, the second cylindrical shell 4-5 and the second piston 4-6 are provided with two second piston packing 4-7, the upper end of the second cylindrical shell 4-5 is provided with the second upper plug head 4-10, the second upper plug head 4-10 comprises the second upper plug head enlarged diameter section 4-20 and the second upper plug head reduced diameter section 4-19, the second upper plug head enlarged diameter section 4-20 is equipped with in the second cylindrical shell 4-5, stifled sealing ring 4-11 on second is set between the second cylindrical shell 4-5 and the second upper plug head enlarged diameter section 4-20, the second upper plug head reduced diameter section 4-19 is arranged on the upper end of the second upper plug head enlarged diameter section 4-20, the second upper plug head reduced diameter section 4-19 is nested with the second upper pressing cap 4-8 outward, the second upper pressing cap 4-8 is threaded with the second cylindrical shell 4-5, the second upper plug head reduced diameter section 4-19 of second upper pressing cap 4-8 top radially is provided with annular groove 4-18 on second, in the annular groove 4-18 snap ring 4-9 on second is set on second.The second upper plug head 4-10 axially is provided with the second top connection 4-23, and the upper end of the second top connection 4-23 is connected with second tube connector 5, and the lower end of the second top connection 4-23 is connected with the second cylindrical shell 4-5.The lower end of the second cylindrical shell 4-5 is provided with the second lower end cap 4-2, the second lower end cap 4-2 comprises the second lower end cap enlarged diameter section 4-24 and the second lower end cap reduced diameter section 4-25, the second lower end cap enlarged diameter section 4-24 is equipped with in second cylindrical shell, between the second cylindrical shell 4-5 and the second lower end cap enlarged diameter section 4-24 the second lower end cap sealing ring 4-3 is set, the second lower end cap reduced diameter section 4-25 is arranged on the lower end of the second lower end cap enlarged diameter section 4-24, the second lower end cap reduced diameter section 4-25 is nested with the second lower pressing cap 4-4 outward, the second lower pressing cap 4-4 is threaded with the second cylindrical shell 4-5, the second lower end cap reduced diameter section 4-25 of second lower pressing cap 4-4 below radially is provided with annular groove 4-22 second time, and snap ring 4-21 is set second time in second time annular groove 4-22.The second lower end cap 4-2 axially is provided with the second lower contact 4-1, the upper end of the second lower contact 4-1 is connected with the second cylindrical shell 4-5, the lower end of the second lower contact 4-1 is connected 23 pipes and connects with the 6th, second lower end cap 4-2 sealing places the second displacement indicating arm 4-14, the second sealing ring 4-15 and the second pressure ring 4-16 are set between the second displacement indicating arm 4-14 and the second lower end cap 4-2, the second pressure ring 4-16 is arranged on the below of the second sealing ring 4-15, and the second pressure ring 4-16 is connected with the second lower end cap 4-2 by the second screw 4-17.The upper end of the second displacement indicating arm 4-14 connects the second pressing plate 4-13, and the second pressing plate 4-13 is fixedlyed connected with the second piston 4-6 by the second bridge screw 4-12, and the lower end of the second displacement indicating arm 4-14 connects second displacement transducer 18.
As shown in Figure 4, membrane type controller 8 comprises controller lower body 8-4, the top of controller lower body 8-4 connects controller upper body 8-1 by two screw rod 8-7, controller upper body 8-1 is provided with controlled pressure input interface 8-2 and controller epicoele 8-5, controlled pressure input interface 8-2 is connected with controller epicoele 8-5, and controller epicoele 8-5 is arranged on the side of controller upper body 8-1 towards controller lower body 8-4.Controller lower body 8-4 is provided with controller cavity of resorption 8-8, gas input interface 8-6 and gas output interface 8-9, controller cavity of resorption 8-8 is arranged on the side of controller lower body 8-4 towards controller upper body 8-1, the end of gas input interface 8-6 is connected with the 3rd tube connector 14, the other end of gas input interface 8-6 is arranged on the side of controller lower body 8-4 towards controller upper body 8-1, the end of gas output interface 8-9 is connected with controller cavity of resorption 8-8, the other end of gas output interface 8-9 is connected with efferent duct 9, and sealing is provided with diaphragm 8-3 between controller epicoele 8-5 and the controller cavity of resorption 8-8.
Process of the present invention and principle are as follows:
Gases at high pressure are (this moment, valve 7,11 was closed) from air inlet pipe 10 enters the epicoele of the second constant volume injector 4 by the valve of opening 12, the second piston 4-6 in the second constant volume injector 4 moves down, because the not channelling in cavity of resorption of gases at high pressure in the epicoele of the effect second constant volume injector 4 of the second piston packing 4-7; (this moment, valve 2,16 was in the closed position) in the liquid storage cylinder 21 returned by the valve of opening 17 in hydraulic fluid side in the second constant volume injector, 4 cavity of resorptions, and the second constant volume injector 4 is ready.
The first in running order constant volume injector 3: the highly pressurised liquid in the high-pressure pump 1 enters the cavity of resorption (this moment, valve 2,16 was closed) of the first constant volume injector 3 by the valve of opening 20, because the crossfire in epicoele not of the highly pressurised liquid in the cavity of resorption of the effect first constant volume injector 3 of first piston sealing ring 3-7; First piston 3-6 in the first constant volume injector 3 moves up, its translational speed is decided by the injection rate of the first constant volume injector 3, gases at high pressure in the first constant volume injector, 3 epicoeles enter in the membrane type controller 8 by the valve of opening 6, make high pressure draught pass through efferent duct 9 and at the uniform velocity export.
Displacement transducer 19,18 is cemented in respectively on indicating arm 3-14, the 4-14, shows the duty of piston 3-6,4-6, monitors the gases at high pressure output speed, commands the coordination of each valve simultaneously by corresponding circuit.
Membrane type controller 8 specific implementation process are as follows: the pressure input interface 8-2 that controlled pressure P control is arranged at controller upper body 8-1, controlled pressure is input among the controller epicoele 8-5 by pressure input interface 8-2, and act on the diaphragm 8-3, because diaphragm 8-3 is sandwiched between controller upper body 8-1 and the controller lower body 8-4, under the effect of connecting screw rod 8-7, controller epicoele 8-5 and controller cavity of resorption 8-8 are each self-packing two spaces; When the pressure P control fashionable greater than input pressure P, diaphragm 8-3 produces downward active force makes the valve seat of gas input interface 8-6 upper end be in sealing state, fashionable less than input pressure P when controlled pressure P control, diaphragm 8-3 has produced the active force that makes progress makes the valve seat of gas input interface 8-6 upper end be in opening.When equaling the fashionable diaphragm 8-3 of input pressure P, controlled pressure P control remains unchanged.
P goes into＜and controller is in closed condition during the P control;
P goes into＞and controller is in open mode during the P control;
P goes into=and the controller attitude of remaining stationary is constant during the P control;
High pressure constant volume injector and membrane type controller common implementing process are as follows: equal the total constant pressure P control of total input port input pressure P in the input of the pressure input interface place of membrane type controller 8, when the piston in the first constant volume injector 3 moves upward, the gas of epicoele is compressed in the first constant volume injector 3, pressure P goes into to increase and drive membrane chip controller opens, after this gas pressure of epicoele descends gradually in the first constant volume injector 3, when equaling the P governor pressure, controller is in a poised state, keeps the constant output of gases at high pressure.
Conclusion: under the highly pressurised liquid effect of high-pressure pump 1, make the operation by turns of the first constant volume injector 3, the second constant volume injector 4 by the action that cooperatively interacts of each valve, and the control of membrane type controller 8, can make gases at high pressure pass through air inlet pipe 10 and constantly inject, efferent duct 9 continuous homogeneous and controllable output to foam maker.
Claims (6)
1. the foam flooding gases at high pressure quantize injector, it is characterized in that: comprise high-pressure pump, the first constant volume injector and the second constant volume injector, the upper end of the first constant volume injector connects first tube connector, connect first valve on first tube connector, the upper end of the second constant volume injector connects second tube connector, connect second valve on second tube connector, first tube connector is connected the input of same the 3rd tube connector with the output of second tube connector, the output of the 3rd tube connector connects the membrane type controller, and the membrane type controller connects efferent duct; The output that is connected the 4th tube connector on first tube connector between described first valve and the first constant volume injector, connect the 4th valve on the 4th tube connector, the output that is connected the 5th tube connector on second tube connector between described second valve and the second constant volume injector, connect the 5th valve on the 5th tube connector, the 4th tube connector is connected the output of same air inlet pipe with the input of the 5th tube connector; The lower end of the described first constant volume injector connects the 6th tube connector, the other end of the 6th tube connector connects the input of the 7th tube connector and the output of the 8th tube connector, connect the 7th valve on the 7th tube connector, the output of the 7th tube connector is arranged in the liquid storage cylinder, liquid storage cylinder connects the input of described high-pressure pump by pipeline, the high pressure delivery side of pump connects the input of the 9th tube connector, the output of the 9th tube connector connects the input of described the 8th tube connector and the input of the tenth tube connector, connect the 8th valve on the 8th tube connector, connect the tenth valve on the tenth tube connector, the output of the 11 tube connector also is set in the described liquid storage cylinder, connect the 11 valve on the 11 tube connector, the output of the input of the 11 tube connector and the tenth tube connector is connected same the 12 tube connector, and the other end of the 12 tube connector is connected the lower end of the described second constant volume injector.
2. foam flooding gases at high pressure according to claim 1 quantize injector, it is characterized in that: the described first constant volume injector comprises first cylindrical shell and first piston, first piston is equipped with in first cylindrical shell, the upper end of first cylindrical shell is provided with first upper plug head, described first upper plug head comprises the first upper plug head enlarged diameter section and the first upper plug head reduced diameter section, the first upper plug head enlarged diameter section is equipped with in first cylindrical shell, the first upper plug head reduced diameter section is arranged on the upper end of the first upper plug head enlarged diameter section, the first upper plug head reduced diameter section is nested with first upper pressing cap outward, first upper pressing cap is connected with described first cylinder screw, the first upper plug head reduced diameter section of first upper pressing cap top radially is provided with annular groove on first, in the annular groove snap ring on first is set on first; Described first upper plug head axially is provided with first top connection, and the upper end of first top connection is connected with described first tube connector, and the lower end of first top connection is connected with described first cylindrical shell; The lower end of described first cylindrical shell is provided with first lower end cap, described first lower end cap comprises the first lower end cap enlarged diameter section and the first lower end cap reduced diameter section, the first lower end cap enlarged diameter section is equipped with in first cylindrical shell, the first lower end cap reduced diameter section is arranged on the lower end of the first lower end cap enlarged diameter section, the first lower end cap reduced diameter section is nested with first lower pressing cap outward, first lower pressing cap is connected with described first cylinder screw, the first lower end cap reduced diameter section of first lower pressing cap below radially is provided with annular groove first time, and snap ring is set first time in first time annular groove; Described first lower end cap axially is provided with first lower contact, the upper end of first lower contact is connected with first cylindrical shell, the lower end of first lower contact is connected with described the 6th tube connector, the sealing of first lower end cap places the first displacement indicating arm, fixedly connected with described first piston in the upper end of the first displacement indicating arm, the lower end of the first displacement indicating arm connects first displacement transducer.
3. foam flooding gases at high pressure according to claim 1 quantize injector, it is characterized in that: the described second constant volume injector comprises second cylindrical shell and second piston, second piston is equipped with in second cylindrical shell, the upper end of second cylindrical shell is provided with second upper plug head, described second upper plug head comprises the second upper plug head enlarged diameter section and the second upper plug head reduced diameter section, the second upper plug head enlarged diameter section is equipped with in second cylindrical shell, the second upper plug head reduced diameter section is arranged on the upper end of the second upper plug head enlarged diameter section, the second upper plug head reduced diameter section is nested with second upper pressing cap outward, second upper pressing cap is connected with described second cylinder screw, the second upper plug head reduced diameter section of second upper pressing cap top radially is provided with annular groove on second, in the annular groove snap ring on second is set on second; Described second upper plug head axially is provided with second top connection, and the upper end of second top connection is connected with described second tube connector, and the lower end of second top connection is connected with described second cylindrical shell; The lower end of described second cylindrical shell is provided with second lower end cap, described second lower end cap comprises the second lower end cap enlarged diameter section and the second lower end cap reduced diameter section, the second lower end cap enlarged diameter section is equipped with in second cylindrical shell, the second lower end cap reduced diameter section is arranged on the lower end of the second lower end cap enlarged diameter section, the second lower end cap reduced diameter section is nested with second lower pressing cap outward, second lower pressing cap is connected with described second cylinder screw, the second lower end cap reduced diameter section of second lower pressing cap below radially is provided with annular groove second time, and snap ring is set second time in second time annular groove; Described second lower end cap axially is provided with second lower contact, the upper end of second lower contact is connected with second cylindrical shell, the lower end of second lower contact is connected with described the 6th tube connector, the sealing of second lower end cap places the second displacement indicating arm, fixedly connected with described second piston in the upper end of the second displacement indicating arm, the lower end of the second displacement indicating arm connects second displacement transducer.
4. foam flooding gases at high pressure according to claim 1 quantize injector, it is characterized in that: described membrane type controller comprises the controller lower body, the top of controller lower body connects the controller upper body by at least two screw rods, the controller upper body is provided with controlled pressure input interface and controller epicoele, the controlled pressure input interface is connected with the controller epicoele, and the controller epicoele is arranged on the side of controller upper body towards the controller lower body; The controller lower body is provided with controller cavity of resorption, gas input interface and gas output interface, the controller cavity of resorption is arranged on the side of controller lower body towards the controller upper body, one end of gas input interface is connected with described the 3rd tube connector, the other end of gas input interface is arranged on the side of controller lower body towards the controller upper body, one end of gas output interface is connected with the controller cavity of resorption, the other end of gas output interface is connected with described efferent duct, and sealing is provided with diaphragm between controller epicoele and the controller cavity of resorption.
5. foam flooding gases at high pressure according to claim 2 quantize injector, it is characterized in that: between the described first displacement indicating arm and first lower end cap first sealing ring and first pressure ring are set, first pressure ring is arranged on the below of first sealing ring, and first pressure ring is connected with first lower end cap by first screw.
6. foam flooding gases at high pressure according to claim 3 quantize injector, it is characterized in that: between the described second displacement indicating arm and second lower end cap second sealing ring and second pressure ring are set, second pressure ring is arranged on the below of second sealing ring, and second pressure ring is connected with second lower end cap by second screw.
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| CN 201110058848 CN102172490B (en) | 2011-03-11 | 2011-03-11 | Foam flooding high-pressure gas quantitative injector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104948134A (en) * | 2015-06-30 | 2015-09-30 | 安东柏林石油科技（北京）有限公司 | Storage-type precise quantitative oil-gas well down-hole work agent injection system and injection method |
| CN113738321A (en) * | 2021-08-30 | 2021-12-03 | 西南石油大学 | Foam generating device for high-temperature-resistant high-pressure micro-reaction displacement experiment |
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| CN2475830Y (en) * | 2001-04-10 | 2002-02-06 | 田景利 | Intellectual controller for high-pressure gas injection of oil displacement |
| CN200965528Y (en) * | 2006-10-31 | 2007-10-24 | 大庆油田有限责任公司 | Forced foam flooding system evaluation device |
| CN101708442A (en) * | 2009-09-04 | 2010-05-19 | 山东中惠仪器有限公司 | Fully automatic standard gas preparation device |
| CN201953363U (en) * | 2011-03-11 | 2011-08-31 | 江苏华安科研仪器有限公司 | Foam-flooding high-pressure gas quantification injector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2475830Y (en) * | 2001-04-10 | 2002-02-06 | 田景利 | Intellectual controller for high-pressure gas injection of oil displacement |
| CN200965528Y (en) * | 2006-10-31 | 2007-10-24 | 大庆油田有限责任公司 | Forced foam flooding system evaluation device |
| CN101708442A (en) * | 2009-09-04 | 2010-05-19 | 山东中惠仪器有限公司 | Fully automatic standard gas preparation device |
| CN201953363U (en) * | 2011-03-11 | 2011-08-31 | 江苏华安科研仪器有限公司 | Foam-flooding high-pressure gas quantification injector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104948134A (en) * | 2015-06-30 | 2015-09-30 | 安东柏林石油科技（北京）有限公司 | Storage-type precise quantitative oil-gas well down-hole work agent injection system and injection method |
| CN113738321A (en) * | 2021-08-30 | 2021-12-03 | 西南石油大学 | Foam generating device for high-temperature-resistant high-pressure micro-reaction displacement experiment |
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| CN102172490B (en) | 2012-12-26 |
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