CN2149477Y - Numeric-control Numeric control high pressure steam generator on oil well side - Google Patents

Abstract

The utility model relates to a numeric control high pressure steam generator on a well head, which is used for the exploitation of viscous oil. A heat exchange casing tube which makes high pressure demineralized water gasified is arranged in a blast chamber of a gas turbine engine of an aviation turbine used as a heating device. The high pressure demineralized water processed by a high pressure reverse osmosis device is connected to an inlet of the tube, and the flow quantity of the high pressure demineralized water is controlled by a numeric control metering water valve. An oil nozzle and an air inlet of the gas turbine engine are respectively connected with fuel oil input through a numeric control metering oil pump and low pressure compressed air led out from the outside of the numeric control metering oil pump and input from a numeric control metering air valve. Sensors installed at the inlet and the outlet of corresponding materials are used for monitoring the pressure, the flow quantity and the temperature of the corresponding materials. The numeric control high pressure steam generator on a well head can work under the unified harmonization of an industrial process controller in equilibrium.

Description

Numeric-control Numeric control high pressure steam generator on oil well side

The utility model relates to a kind of field mining equipment, is meant a kind of numerically controlled high-pressure steam generator at well top that is used for heavy crude producing especially.

In the thickened oil recovery operation, to inject the moist steam of high temperature, high pressure to oil well,, be convenient to it is aspirated out ground to reduce the crude oil viscosity in the stratum.Present conventional method is to set up special thermal recovery boiler to produce the moist steam of high temperature, high pressure in the appropriate location in oil field, is transported in each gas injection well by special heat-insulating pipeline again; Transmit in the way and also will set up several high steam stations, with the distributing steam and the pressurization that continues to heat.Because the generation equipment user of this moist steam is more single, the enterprise that therefore drops into exploitation both at home and abroad in the scientific research of this class device and development is very few, lacks competition mechanism, and technology is just quite backward.Because state of the art still maintains the original level before the many decades, the generation of moist steam, quality examination and conveying equipment all exist energy consumption high, and difficult quality control guarantees and the serious various disadvantages of thermodynamic loss.And, because the control of the difficult quality of moist steam causes a large amount of dissipation of heat energy again after heat distribution pipe network is carried, make to have become hot water probably when injecting well, make that the effect of oil thermal production is very undesirable.

The purpose of this utility model provides a kind ofly utilizes retired aero-gas turbine engine as main frame, the auxiliary again numerically controlled high-pressure steam generator at well top that constitutes with the NC inspecting instrument and meter.

The utility model is achieved in that it includes high service, air feed and heater and monitor controller, it is characterized in that: the heat exchange single tube that makes the water under high pressure vaporization is housed in the can burner as the aeroturbine gas turbine of heater, the inlet of this pipe is connected to through the high pressure reverse osmosis unit and handles and the digital control meter water valve is controlled the high pressure demineralized water of its flow, the oil-in of this combustion gas turbine and air intake are connected to respectively contains the low-pressure compressed air of drawing and importing through the digital control meter air-valve through the fuel oil of digital control meter oil pump input with from it outside, and at above-mentioned fuel oil, compressed air, corresponding pressure all is equipped with in the inlet of high pressure demineralized water and the exit of moist steam, flow and temperature pick up, these sensors and above-mentioned Numerical control valve, pump all is the peripheral input/output interface device of industrial process controller.

The utility model has made full use of the crystallization of contemporary high technology achievement---and aviation turbofan gas engine and high pressure reverse osmosis unit also are frontiers of " the plane land is used ".As utilize the can burner of aero-gas turbine to replace boiler furnace; Utilize the indoor heat exchange transmission pipeline of boiler combustion to replace complicated high-pressure boiler; Utilize the two-phase thermodynamics mathematical model and the simple unit instrument PID control of appliance computer control replacement of advanced aviation combustion technology and water vapour parameter, utilize advanced industrial process controller replacement complex structure in the present age, the conventional Thermal Meter that operation easier is big; Utilizing efficiently, the aviation low-pressure compressor replaces low pressure air compressor and air supply system.These changes have caused the high-voltage high-speed gas-flow of the utility model production to replace traditional low pressure flue gas stream, thereby heat exchange efficiency is improved greatly, and energy consumption is greatly saved, and equipment investment also significantly descends.Be in particular in: boiler that involves great expense and boiler room facility, high temperature, the heat insulation transfer line of high pressure all have been cancelled, because heater has adopted the plane combustion chamber of advanced technology to come the backward relatively boiler furnace for many years of replacement technique, adopt advanced process control technology simultaneously again, the thermal efficiency is improved, also make the material balance of combustion process obtain strict control, the discharging of harmful waste also significantly reduces.In addition, in the utility model, the boiler tube three of high pressure water transport pipe, the heat insulation carrier pipe of high-temperature steam, boiler is integrated, and has both reduced the heating power loss of course of conveying, also reduces equipment investment, saves a large amount of metal material.Carry out mitigation with advanced reverse osmosis unit again and handle, both replaced complicated water treatment facilities, can replace high pressure boiler water supply with the high pressure water injection pipeline again, and the high pressure waste water that infiltration is handled still can be used as water under high pressure and injects water injection well and be utilized effectively.In a word, the utility model is a large-scale plant concentrating contemporary high and new technology, marginal technology and control method, thereby a series of excellent properties have been obtained, though this device is the crystallization of high and new technology, but the composition of in fact whole device and working mechanism are still fairly simple and open easily.

Fig. 1 is a structural representation of the present utility model.

Among the figure: the 1st, " Integrated Power Unit of multiple energy output " that utilizes retired aviation turbofan gas turbine repacking to make, this also is applicant's a patented technology (patent No. CN90224692.5), this equipment utilization oil inflame, the combustion gas that makes wherein high-pressure turbine, low-pressure turbine drive the running of high and low pressure compressor respectively, from outer culvert output low-pressure compressed air, combustion chamber, then produce HTHP.9 is exactly the can burner of this gas turbine among the figure.This gas turbine can use and retired destroy 6, destroy 7 or other jet aerial engines repackings make, its retrofit work amount is less, expense is more honest and cleaner.Contain the source of the gas that 2 low-pressure compressed airs of drawing just can be used as this device outside plane, its atmospheric pressure value can reach 0.24 MPa (MPa).The outer compressed air of containing can be by the air distribution and computation valve 7(number of patent application on its distribution duct 20 and the pipeline 21: it is everywhere compressed-air actuated CN91111658.3) to receive needs.The 4th, high pressure reverse osmosis water treatment facilities, du pont company have the product of plurality of specifications, model for selecting for use.It carries out reverse osmosis ion sieve filtration treatment to the water under high pressure from high pressure water injection pipe network 3, to obtain the high pressure demineralized water.This high pressure demineralized water is through water pipe 5 and water under high pressure digital controlled metrological valve 6(patent No. CN91218716.6) send into combustion gas heating heat exchange sleeve in the can burner 9 in the gas turbine and heat vaporization for 11 li and become damp steam, inject near the heavy crude well that needs being positioned at of exploitation through high steam feed-line 22 and vaporimeter metered valve 21 again.The 8th, numerical control fuel metering pump (number of patent application CN91222850.4) its from the oil plant of fuel oil pumping plant quantitatively periodically in the vaporific combustion chamber that is blown into gas turbine of fuel nozzle 10, fully burn.The 12nd, the mineral wool heat insulation layer that the gas turbine shell lays.The viscous crude that the fuel oil here can use heavy oil, residual oil or scene, oil field to obtain on the spot also can use oil association natural gas to act as a fuel, and fuel metering pump 8 will change digital controlled metrological valve into and substitute it so certainly.At the inlet of fuel oil, low-pressure compressed air, high pressure demineralized water and the exit of steam corresponding pressure (13,14,15), temperature (16,17,18) sensor are housed all, 13 is fuel oil or gaseous-pressure sensor in these sensors, the 14th, the compressed air pressure sensor, 15,16 is respectively the pressure and temperature sensor of moist steam, the 17th, exhaust gas temperature sensor, the 18th, high pressure demineralized water inflow temperature sensor.The input of their output and above-mentioned Numerical control valve, pump all is connected to 19 li of industrial process controllers, as its input/output interface device.

Operating principle of the present utility model is: the low-pressure compressed air that the outer culvert 2 of the power station 1 that is made of aero-gas turbine produces is transported to single tube burner 9 through digital controlled metrological valve 7, the water under high pressure of high pressure water injection pipeline 5 is assigned to single-tube evaporator 11 through CNC high-pressure metering valve 6, numerical control metering pump 8 combustion oil metering send into plane can burner 9 pulverizing nozzle 10(this also be the aviation accessory, succeeded in developing by Chinese Academy of Sciences's Engineering Thermophysics), all metering numerical value is all by water vapour and burning mathematical model as calculated behind machine simulation and the real-time monitoring, determine its optimal parameter again, by the strict digital commands control of carrying out closed loop feedback of industrial process controller 19 (because of all the sensors and actuating unit all are the input/output devices of industrial process controller).Because running is by various mathematical models, the software kit that thermodynamical equilibrium and various control strategy are formed is carried out intelligent management, whole device is under the optimum condition to be moved, so, hardware of the present utility model is formed, structure all still is fairly simple, especially selected for use many ripe, or comparative maturity, multinomial applicant's patent application or patented technology, and constitute the large-scale plant of a distributed control with these local unit products, make the capital construction of entire equipment, equipment investment descends greatly, and, product of the present utility model is the high pressure moist steam one by one, also inject in the oil well on the spot what well head produced on the spot exactly, the thermodynamic loss that does not have transmission pipeline network also provides condition for the quality that guarantees moist steam.And for really the generation and the quality control of solution well head high pressure moist steam provide an effective technology measure.In a word, of the present utility model succeeding in developing will be launched the very tempting prospect of a width of cloth for the very exploitation of abundant viscous crude resource of containing under China stratum.

Claims (1)

1, a kind of numerically controlled high-pressure steam generator at well top that is used for thickened oil recovery, include high service, air feed and heater and monitor controller, it is characterized in that: the heat exchange single tube that makes the water under high pressure vaporization is housed in the can burner as the aeroturbine gas turbine of heater, the inlet of this pipe is connected to through the high pressure reverse osmosis unit and handles and the digital control meter water valve is controlled the high pressure demineralized water of its flow, the oil-in of this combustion gas turbine and air intake are connected to respectively contains the low-pressure compressed air of drawing and importing through the digital control meter air-valve through the fuel oil of digital control meter oil pump input with from it outside, and at above-mentioned fuel oil, compressed air, corresponding pressure all is equipped with in the inlet of high pressure demineralized water and the exit of moist steam, flow and temperature pick up, these sensors and above-mentioned Numerical control valve, pump all is the peripheral input/output interface device of industrial process controller.

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