CN103244102A - Defoaming rotor flow pressure differential air injection profile tester, defoaming rotor flow pressure differential air injection profile testing system and defoaming rotor flow pressure differential air injection profile testing method - Google Patents
Defoaming rotor flow pressure differential air injection profile tester, defoaming rotor flow pressure differential air injection profile testing system and defoaming rotor flow pressure differential air injection profile testing method Download PDFInfo
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- CN103244102A CN103244102A CN2013101695709A CN201310169570A CN103244102A CN 103244102 A CN103244102 A CN 103244102A CN 2013101695709 A CN2013101695709 A CN 2013101695709A CN 201310169570 A CN201310169570 A CN 201310169570A CN 103244102 A CN103244102 A CN 103244102A
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Abstract
The invention relates to an air injection profile testing instrument, and discloses a defoaming rotor flow pressure differential air injection profile tester, a defoaming rotor flow pressure differential air injection profile testing system and a defoaming rotor flow pressure differential air injection profile testing method. The tester, the testing system and the testing method are used in a steam injection and air injection alternate exploitation process for a heavy oil well of an oilfield. The tester comprises a rotor flow meter assembly (1), a protective shell (2), a mechanism portion, a defoaming agent loader assembly (6), a pressure differential device assembly (7) and a sensor assembly (8). The defoaming rotor flow pressure differential air injection profile tester, the defoaming rotor flow pressure differential air injection profile testing system and the defoaming rotor flow pressure differential air injection profile testing method have the advantages of high precision, capabilities of correcting depths and testing air injection wells and applicability to novel air injection and steam injection exploitation technologies.
Description
Technical field
The present invention relates to a kind of oil-field thick-oil well steam injection, air injection replaces in the production practice, surveys tester-froth breaking formula rotor flow pressure reduction air injection section tester instrument, test macro and the method for testing of air injection profile.
Background technology
In recent years, steam injection, air injection mining novel technology have been used in the Liaohe Oil Field on heavy oil development, thereby propose to need to solve the test problem of air injection well.The air injection well, downhole flow is low, pressure reduction is little, foam is arranged, and dead oil is arranged in the pit shaft, and conventional turbine flowmeter is inapplicable.In order to solve the practical problem that exists in the production, develop out and a kind ofly can eliminate the froth breaking formula rotor flow pressure reduction air injection section tester instrument that foam can be prevented the stuck flat rotary wing wheel of dead oil again, and design simulation calibration equipment, tester has been carried out the ground verification, be fit to the section plane test of steamed well, air injection well, mixed phase injection well various modes, have broad application prospects.
Summary of the invention
The objective of the invention is to solve the down-hole gas entry profile test problem of air injection well, to overcome the deficiency of traditional test technology.
Froth breaking formula rotor flow pressure reduction air injection section tester instrument of the present invention, test macro and method of testing, its technical scheme is as follows:
A kind of froth breaking formula rotor flow pressure reduction air injection section tester instrument; comprise rotor flowmeter assembly (1); protecting sheathing (2); core section; defoamer carrier assembly (6); Differential Pressure Unit assembly (7) and sensor unit (8); signal processor (3); electric power system (4) and magnetic locator (5) connect to form core section successively; core section embeds the inside of protecting sheathing (2); sensor unit is placed with a plurality of sensors in (8); a plurality of sensors are connected one by one with output signal line; the signalling channel that output signal line passes sensor unit (8) is connected into signal processor (3); the port of protecting sheathing (2) is connected with the signalling channel of sensor unit (8); seal with copper ring; the other end of sensor unit (8) connects rotor flowmeter assembly (1); one end of protecting sheathing (2) bottom and defoamer carrier assembly (6) is for being threaded, and defoamer carrying assembly (6) other end and Differential Pressure Unit assembly (7) are for being threaded.
Rotor flowmeter assembly (1) is by rope socket mouth (1-1); the starting taper head; rotor flow meter water conservancy diversion entrance (1-2); rotary wing wheel protecting sheathing (1-3); rotary wing wheel upper bracket (1-4); rotary wing wheel (1-5); sweet reed pipe flow switch (1-6); rotor flow meter diversion outlet (1-7); axle (1-8); magnet steel (1-9) and rotary wing wheel undersetting (1-10) are formed; be that rope socket mouth (1-1) is connected with the starting taper head in the end of rotor flowmeter assembly (1); have rotor flow meter water conservancy diversion entrance (1-2) on the starting taper head; rotary wing wheel upper bracket (1-4); rotary wing wheel (1-5); magnet steel (1-9) is connected successively with rotary wing wheel undersetting (1-10) and places in the rotor protecting sheathing (1-3); rotor protecting sheathing (1-3) at rotor undersetting (1-10) end has rotor flow meter diversion outlet (1-7), rotary wing wheel (1-5) center be provided with the axle (1-8) and be supported on the rotary wing wheel upper bracket and magnet steel (1-9) between.
Defoamer carrying assembly (6) is made up of defoamer plug (6-1), defoamer outlet opening (6-2), defoamer carrier shell (6-3) and defoamer (6-4); the end that defoamer carrying assembly (6) links to each other with protecting sheathing (2) is provided with defoamer plug (6-1); defoamer (6-4) is at the center of defoamer carrying assembly (6) and place in the defoamer carrier shell (6-3), and defoamer carrier shell (6-3) is provided with defoamer outlet opening (6-2).
Differential Pressure Unit assembly (7) is by connector (7-1), Differential Pressure Unit water conservancy diversion entrance (7-2), sealing ring (7-3), passage (7-4) dams, Differential Pressure Unit diversion outlet (7-5), pressure sensor (7-6), signal picker (7-7) and pressure sensor (7-8) are formed, one end of Differential Pressure Unit assembly (7) is that connector (7-1) is used for connecting defoamer carrying assembly, connector (7-1) links to each other with the housing of Differential Pressure Unit assembly (7), one end of housing is provided with Differential Pressure Unit water conservancy diversion entrance (7-2), the end of the other end is provided with Differential Pressure Unit diversion outlet (7-5), and enclosure interior has the passage of damming (7-4), the passage (7-4) that dams is provided with sealing ring (7-3), pressure sensor (7-6), signal picker (7-7) and pressure sensor (7-8).
Signal processor (3) has the communication interface online with host computer.
A kind of froth breaking formula rotor flow pressure reduction air injection cross-sectional testing system comprises above-mentioned froth breaking formula rotor flow pressure reduction air injection section tester instrument, logging winch, special test cable, electronic depth instrument, well head facility.
The method of a kind of down-hole air injection section plane test; it is characterized in that; shedder core segment at first; with the host computer on-line communication; by host computer analysis-by-synthesis interpretation software tester is carried out the setting of sample format on ground; open tester; the record tester available machine time; with the movement protecting sheathing of packing into; with steel wire penetrating rope socket mouth (1-1); at rope socket head inner chamber tubercle; namely finish being connected of tester and logging winch; by the well head facility with the tester hanging in well head, supporting electronic depth instrument arranges sample format by host computer analysis-by-synthesis interpretation software too, and opens when tester simultaneous; the opening time of record tester and degree of depth instrument; start winch and transfer tester, tester carries out temperature, pressure by setting sample format; pressure reduction; flow and magnetic orientation data acquisition and storage; the electronic depth instrument is while writing time-depth curve in the test winch on ground, transfers to requiring the degree of depth, controls winch afterwards and trips out tester; get back to ground; the releasing instrument is connected with wire rope, takes out movement, with the host computer on-line communication; the playback test data; the data of the electronic depth of playback simultaneously instrument by the analysis-by-synthesis interpretation software, are finished test.
In order to improve the accurate testing degree, when adopting high-precision temperature, pressure sensor, on the main body of sensor unit, offer the pilot passage, inject pilot liquid, make sensor fully contact measured medium; Because the down-hole cooperates dosing during air injection, so having foam in the well generates, influence the rotation of flat rotary wing wheel, bottom at flow meter, designed the carrier that discharges defoamer, when transferring instrument, carrier is discharged defoamer by the level pressure hole of four direction, eliminate instrument shaft near foam, guarantee the normal rotation of flat rotary wing wheel; The water conservancy diversion entrance of Differential Pressure Unit assembly and the angle of diversion outlet can set up on their own according to actual conditions, instrument is transferred in the process and is flow through from the passage that dams by medium in the well logging, the sensor that is positioned at the space of damming can fully contact with measured medium, makes the pressure reduction test data more true and reliable; The holding wire passage length of sensor can be by the test request adjustment, and namely tool length can be tested needs processing according to reality.
Froth breaking formula rotor flow pressure reduction air injection section tester instrument of the present invention and system thereof, comprise froth breaking formula rotor flow pressure reduction section tester instrument, the electronic depth instrument, logging winch, well head facility and supporting host computer etc., its analysis-by-synthesis interpretation software can be drawn magnetic orientation by the survey data that reads froth breaking formula rotor flow pressure reduction air injection section tester instrument and electronic depth instrument, the degree of depth, the temperature of full well and oil reservoir, pressure, pressure reduction and flow profile curve, thereby to oil well downhole temperature in process of production, parameter such as pressure and flow is made accurately measuring with analysis of science and is explained.Flow-type pulse signal processor and the software numerical analysis function of accurate pressure sensor, precision can guarantee that the pressure test value is accurate to 0.001MPa, the flow rate test value is accurate to 0.1t/h.The dark function in the school of tester is finished by magnetic locator and the cooperation of electronic depth instrument of tester core section, realizes dual calibration.Described magnetic locator is not by permanent magnet, magnetic induction coil, the magnetic conduction sleeve is formed, and induction produces pulse signal to oil (cover) pipe box cupling to guarantee to remove process by instrument, corresponding oil well box cupling data correction MTD.Test supporting the record simultaneously with the electronic depth instrument and transfer the wire rope degree of depth, upper computer software is set up the double-depth calibration data related, to the correction of the test point degree of depth, calibration.
Determining of flat rotary wing wheel, because common turbine flowmeter can not normally rotate under the condition of low discharge, can't metered flow, so designed rotary vane meter, to solve low pressure, the measurement problem of low discharge gas, repeatedly change angle and the length of rotor and the quantity of blade thereof of flat rotary wing wheel, simultaneously for the verification rotary vane meter, design and set up the air injection simulation well voluntarily, by the test of many times in simulation well, final definite low-angle of selecting, flat flat rotary wing wheel, the flat rotary wing wheel of new research and development guarantees that in low pressure low discharge gas blows down wing wheel and also can normally rotate, by the counting to the wing wheel revolution, thereby realized measurement to air mass flow.Accuracy for further verification rotary vane meter, set up ground air injection simulation well, by the repeatedly testing experiment in simulation well, obtained comparatively satisfied effect, rotary vane meter has been selected in final definite air mass flow test for use, and has carried out on-the-spot test.
Determining of injection profile, inject the fluid-mixings such as air of down-hole, when entering oil reservoir, can produce the disturbance of flow, pressure reduction, the feature of differential pressure curve has shown the information of air flow path, and when air entered oil reservoir, the upper and lower cavity of pressure membrane can produce pressure differential deltap P, after injecting steady air current, Δ P and the flow Q ratio that is in line namely increases as flow Q, and pressure differential deltap P also increases thereupon.Determine injection profile by variation and common analysis of flat rotary wing wheel change in rotational speed of measuring pressure reduction.
Beneficial effect of the present invention is precision height, the adjustable degree of depth, and can be applied to air injection, exploitation via steam injection new technology, has solved the test problem of air injection well:
1. magnetic orientation and the dual collimation technique of electronic depth instrument have been adopted, temperature, pressure and the flow profile curve of temperature, pressure and flow profile curve and the oil reservoir of full well are precisely described, the degree of depth accurately will improve credibility and availability to the data of each layer position, down-hole greatly, and then promote the data analysis result to the directive significance of oil well production.
2. realize the test mode of the big capacity storage formula that wire rope removes.
3. adopt high-precision sensor and jumbo memory, low in energy consumption, but powered battery.
4. the employing Differential Pressure Unit can be measured down-hole pressure reduction accurately.
5. adopted technology such as V/F conversion, pulse signal, digital filtering in the acquisition processing system of signal processor to signal, device, structure, software three aspects combine, and improve the precision of sampled result.
Description of drawings
Fig. 1 is the general structure schematic diagram of froth breaking formula rotor flow pressure reduction air injection section tester instrument of the present invention;
Fig. 2 is the rotor flowmeter assembly structural representation of froth breaking formula rotor flow pressure reduction air injection section tester instrument of the present invention;
Fig. 3 is the defoamer carrier assembly structure schematic diagram of froth breaking formula rotor flow pressure reduction air injection section tester instrument of the present invention;
Fig. 4 is the Differential Pressure Unit assembly structure schematic diagram of froth breaking formula rotor flow pressure reduction air injection section tester instrument of the present invention;
1-rotor flowmeter assembly 2-protecting sheathing 3-signal processor 4-electric power system 5-magnetic orientation 6-defoamer carrier assembly 7-Differential Pressure Unit assembly 8-sensor unit
1-1-rope socket mouth 1-2-rotor flow meter water conservancy diversion entrance 1-3-flat rotary wing wheel protecting sheathing 1-4-flat rotary wing wheel upper bracket
The sweet reed pipe flow switch of the 1-5-flat rotary wing wheel 1-6-1-7-rotor flow meter diversion outlet 1-8-axle 1-9-magnet steel 1-10-flat rotary wing wheel undersetting 6-1-defoamer plug 6-2-defoamer outlet opening 6-3-defoamer carrier shell 6-4-defoamer 7-1-connector 7-2-Differential Pressure Unit water conservancy diversion entrance 7-3-sealing ring 7-4-passage 7-5-Differential Pressure Unit diversion outlet 7-6-pressure sensor that dams, (1) 7-7-signal picker 7-8-pressure sensor, (2)
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
During the tester assembling, at first sensor is connected one by one with output signal line and finishes, then a plurality of sensors are inserted in the sensor unit 8; Each bar output signal line all passes the sensor signal passage, is connected into signal processor 3; The signal processor other end; connect electric power system 4, magnetic orientation 5 composition core sections successively, core section embeds the inside of protecting sheathing 2, and the port of protecting sheathing 2 is connected with the sensor unit signalling channel; with the copper ring sealing, the sensor unit other end connects rotor flowmeter assembly 1.Protecting sheathing 2 bottoms are threaded with defoamer carrier assembly 6, and the defoamer carrier assembly other end is threaded with the Differential Pressure Unit assembly, and so far the tester overall package is finished.Wherein rotor flowmeter assembly effect, go into the gas well gas body and enter 1.5 rotations of rotor flowmeter assembly 1 drive flat rotary wing wheel by wing flow meter water conservancy diversion entrance 1.2, thereby drive magnet steel 1.9 rotations and produce pulse signal, open sweet reed pipe flow switch 1.6, pulse signal is delivered to signal processor 3 by output signal line, movement is responsible for handling temperature, pressure, pressure reduction, flow and the magnetic locating signal that collects, and result is fed back to host computer.Sensor unit is responsible for handling the variation that collects temperature, pressure, flow etc., and output signal line is transferred to signal processor with the signal of the temperature, pressure and the flow that collect; 6 effects of defoamer carrier assembly: when transferring instrument, carrier is discharged defoamer by the level pressure hole of four direction, eliminates instrument shaft near foam, guarantees the normal rotation of flat rotary wing wheel; 7 effects of Differential Pressure Unit assembly, gas is entered in the Differential Pressure Unit assembly 7 by Differential Pressure Unit water conservancy diversion entrance 7.2, passage 7.4 dams by damming, the pressure that sensor (1) 7.6, sensor (2) 7.8 are gathered the gas that dams respectively changes, and output signal line goes out the pressure signal that collects to handle to signal picker 7.7 and obtains corresponding differential pressure conditions;
When implementing test jobs, prepare well logging process matched therewith system, comprise logging winch, special test cable, electronic depth instrument, well head facility.At first the shedder core segment with the host computer on-line communication, carries out the setting of sample format by host computer analysis-by-synthesis interpretation software to tester on ground, opens tester, and the record tester available machine time is with the movement protecting sheathing of packing into.With steel wire penetrating rope socket mouth, at rope socket head inner chamber tubercle, namely finish being connected of apparatus subject and rope winch.By the well head facility with the instrument hanging in well head.Supporting electronic depth instrument arranges sample format by host computer analysis-by-synthesis interpretation software too, and open when tester simultaneous, the opening time of record tester and degree of depth instrument, start winch and transfer tester, tester carries out temperature by setting sample format, pressure, pressure reduction, flow and magnetic orientation data acquisition and storage, the electronic depth instrument is while writing time-depth curve in the test winch on ground, transfer to the scheme requirement degree of depth, control winch tester originally afterwards, get back to ground, the releasing instrument is connected with wire rope.Take out movement, with host computer on-line communication, playback test data, the data of the electronic depth of playback simultaneously instrument by the analysis-by-synthesis interpretation software, are finished test report.
Claims (7)
1. froth breaking formula rotor flow pressure reduction air injection section tester instrument; it is characterized in that; comprise rotor flowmeter assembly (1); protecting sheathing (2); core section; defoamer carrier assembly (6); Differential Pressure Unit assembly (7) and sensor unit (8); signal processor (3); electric power system (4) and magnetic locator (5) connect to form core section successively; core section embeds the inside of protecting sheathing (2); sensor unit is placed with a plurality of sensors in (8); a plurality of sensors are connected one by one with output signal line; the signalling channel that output signal line passes sensor unit (8) is connected into signal processor (3); the port of protecting sheathing (2) is connected with the signalling channel of sensor unit (8); seal with copper ring; the other end of sensor unit (8) connects rotor flowmeter assembly (1); one end of protecting sheathing (2) bottom and defoamer carrier assembly (6) is for being threaded, and defoamer carrying assembly (6) other end and Differential Pressure Unit assembly (7) are for being threaded.
2. froth breaking formula rotor flow pressure reduction air injection section tester instrument as claimed in claim 1; it is characterized in that; rotor flowmeter assembly (1) is by rope socket mouth (1-1); the starting taper head; rotor flow meter water conservancy diversion entrance (1-2); rotary wing wheel protecting sheathing (1-3); rotary wing wheel upper bracket (1-4); rotary wing wheel (1-5); sweet reed pipe flow switch (1-6); rotor flow meter diversion outlet (1-7); axle (1-8); magnet steel (1-9) and rotary wing wheel undersetting (1-10) are formed; be that rope socket mouth (1-1) is connected with the starting taper head in the end of rotor flowmeter assembly (1); have rotor flow meter water conservancy diversion entrance (1-2) on the starting taper head; rotary wing wheel upper bracket (1-4); rotary wing wheel (1-5); magnet steel (1-9) is connected successively with rotary wing wheel undersetting (1-10) and places in the rotor protecting sheathing (1-3); rotor protecting sheathing (1-3) at rotor undersetting (1-10) end has rotor flow meter diversion outlet (1-7), rotary wing wheel (1-5) center be provided with the axle (1-8) and be supported on the rotary wing wheel upper bracket and magnet steel (1-9) between.
3. froth breaking formula rotor flow pressure reduction air injection section tester instrument as claimed in claim 2; it is characterized in that; defoamer carrying assembly (6) is made up of defoamer plug (6-1), defoamer outlet opening (6-2), defoamer carrier shell (6-3) and defoamer (6-4); the end that defoamer carrying assembly (6) links to each other with protecting sheathing (2) is provided with defoamer plug (6-1); defoamer (6-4) is at the center of defoamer carrying assembly (6) and place in the defoamer carrier shell (6-3), and defoamer carrier shell (6-3) is provided with defoamer outlet opening (6-2).
4. froth breaking formula rotor flow pressure reduction air injection section tester instrument as claimed in claim 3, it is characterized in that, Differential Pressure Unit assembly (7) is by connector (7-1), Differential Pressure Unit water conservancy diversion entrance (7-2), sealing ring (7-3), passage (7-4) dams, Differential Pressure Unit diversion outlet (7-5), pressure sensor (7-6), signal picker (7-7) and pressure sensor (7-8) are formed, one end of Differential Pressure Unit assembly (7) is that connector (7-1) is used for connecting defoamer carrying assembly, connector (7-1) links to each other with the housing of Differential Pressure Unit assembly (7), one end of housing is provided with Differential Pressure Unit water conservancy diversion entrance (7-2), the end of the other end is provided with Differential Pressure Unit diversion outlet (7-5), and enclosure interior has the passage of damming (7-4), the passage (7-4) that dams is provided with sealing ring (7-3), pressure sensor (7-6), signal picker (7-7) and pressure sensor (7-8).
5. froth breaking formula rotor flow pressure reduction air injection section tester instrument as claimed in claim 4 is characterized in that signal processor (3) has the communication interface online with host computer.
6. a froth breaking formula rotor flow pressure reduction air injection cross-sectional testing system is characterized in that, comprises the described froth breaking formula of claim 5 rotor flow pressure reduction air injection section tester instrument, logging winch, special test cable, electronic depth instrument, well head facility.
7. a right to use requires 6 described test macros to carry out the method for air injection section plane test; it is characterized in that; shedder core segment at first; with the host computer on-line communication; by host computer analysis-by-synthesis interpretation software tester is carried out the setting of sample format on ground; open tester; the record tester available machine time; with the movement protecting sheathing of packing into; with steel wire penetrating rope socket mouth (1-1); at rope socket head inner chamber tubercle; namely finish being connected of tester and logging winch; by the well head facility with the tester hanging in well head; supporting electronic depth instrument arranges sample format by host computer analysis-by-synthesis interpretation software too; and open when tester simultaneous; the opening time of record tester and degree of depth instrument; start winch and transfer tester; tester carries out temperature by setting sample format; pressure; pressure reduction; flow and magnetic orientation data acquisition and storage; the electronic depth instrument is while writing time-depth curve in the test winch on ground, transfers to requiring the degree of depth, controls winch afterwards and trips out tester; get back to ground; the releasing instrument is connected with wire rope, takes out movement, with the host computer on-line communication; the playback test data; the data of the electronic depth of playback simultaneously instrument by the analysis-by-synthesis interpretation software, are finished test.
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Cited By (4)
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| CN103939083A (en) * | 2014-03-26 | 2014-07-23 | 辽宁瑞达石油技术有限公司 | High-temperature six-parameter combination tester, test system and test method |
| CN106124379A (en) * | 2016-06-20 | 2016-11-16 | 昆山鸿福泰环保科技有限公司 | A kind of filter element flow testing device |
| CN108952693A (en) * | 2018-04-19 | 2018-12-07 | 中国石油天然气股份有限公司 | A kind of determination method of the air-breathing ratio of gas injection well gas entry profile |
| CN110566187A (en) * | 2018-06-06 | 2019-12-13 | 中国石油天然气股份有限公司 | Fireflooding gas injection well gas suction profile testing device and method |
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| CN110566187A (en) * | 2018-06-06 | 2019-12-13 | 中国石油天然气股份有限公司 | Fireflooding gas injection well gas suction profile testing device and method |
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| Publication number | Publication date |
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| CN103244102B (en) | 2016-05-04 |
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