CN101122230A - Tracing flow polymer-injected profile logging device, tracing agent and confection device and logging method - Google Patents
Tracing flow polymer-injected profile logging device, tracing agent and confection device and logging method Download PDFInfo
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- CN101122230A CN101122230A CNA2006101043476A CN200610104347A CN101122230A CN 101122230 A CN101122230 A CN 101122230A CN A2006101043476 A CNA2006101043476 A CN A2006101043476A CN 200610104347 A CN200610104347 A CN 200610104347A CN 101122230 A CN101122230 A CN 101122230A
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Abstract
The invention discloses a tracer flow polymer injection profile well logging instrument, a tracer, a tracer makeup device and a well logging method. The well logging instrument comprises a remote-sensing nipple equipped with a collar locator CCL, a tracer sprayer equipped with a continuously rotating motor, and a gamma-ray probe equipped with a near probe and a far probe. The tracer makeup device comprises a control box and a makeup box. The makeup box, which is equipped with a lead glass screen and a lead plate, is arranged on the control box. The bottom of the makeup box is equipped with a guide rail and a protection plate. A stirrer and a funnel are arranged above the guide rail. The stirrer is connected with a weight dropper. 4.5 to 3.5 weight shares of solid polymer, 4.5 to 3.5 weight shares of guar gum, and 2.5 to 1.5 weight shares of amylum are mixed with a tracer suspension to make a liquid with the concentration of 2000mg per litter, and then the liquid together with the 0.5mCi 131Ba micro-spherical tracer to make a suspension. The tracer flow well logging method and the isotope tracer water-injection profile well logging method are used for the well logging. The tracer suspension is first evenly sprayed continuously and then is sprayed in a spotting way. The tracer suspension of the invention is even, and is provided with a low lower limit and a high precision. Moreover, the well logging instrument of the invention is low in the cost.
Description
Technical field
The present invention relates to oil, natural gas extraction technical field, especially measure the technical field of injecting the well polymer injection.
Background technology
Along with the industrial gas oil development of decades, the oil field is through waterflooding extraction for many years, and residual recoverable reserves reduces year by year, and in order to control moisture rising, stabilized crude (oil) output has been taked injecting measure such as well polymer injection.Become the raising recovery ratio at oil field polymer injections such as grand celebrations, the major measure of stable yields.Polymer section (each layer annotated the percentage how many polymer account for the total injection rate of full well in stratified injection well) well logging becomes problem anxious to be solved.Though someone once was used for the polymer profile logging with the radiolabel injection profile logging technology of maturation.But, but run into new problem, promptly in the well of polymer injection,, make because the ratio of viscosities water of polymer is high
131Unite when Ba microballoon tracer discharges, gather heap, disposable release tracer can not enter each substratum uniformly, thereby can not get meeting the accurate polymer injection section data of down-hole situation.Tracer flow survey in water injection well (also claiming the correlative flow well logging) can only be measured the polymer-injected profile of branch interval, and divides the polymer-injected profile of substratum can't measure especially.
Summary of the invention
Goal of the invention of the present invention is especially measured logging instrument and the special-purpose tracer suspension preparation device and the used tracer suspension of the polymer-injected profile that divides substratum for a kind of polymer-injected profile that can measure the branch interval is provided.
Another goal of the invention of the present invention is for providing a kind of logging method of using the spike flow polymer-injected profile logging.
The technical scheme that realizes the foregoing invention purpose is as follows:
A kind of spike flow polymer-injected profile logging, comprise remote measurement pipe nipple, tracer ejector, gamma-ray probe, a continuous motor rotating wherein is installed in the tracer ejector, make the tracer ejector can spray tracer suspension continuously uniformly, carry out continuous measurement, remote measurement pipe nipple upper end is collar locator CCL, and the gamma-ray probe upper end is nearly probe, the lower end is a probe far away.
A kind of spike flow polymer-injected profile logging tracer suspension preparation device, comprise control cabinet and preparation case, the preparation case is installed on above the control cabinet, preparation case both sides have outlet, preparation case front and both sides are equipped with lead glass screen and stereotype, form isolated area, preparation case bottom is provided with guide rail, guide rail stretches out the preparation case by the right side outlet on preparation case right side, be provided with backplate in the guide rail both sides, be provided with agitator and funnel in isolated area above the guide rail, agitator links to each other with weight, and weight places the lead glass screen outside.
A kind of tracer suspension is mixed with the starch of the melon glue of the solid polymer of 4.5～3.5 weight portions, 4.5～3.5 weight portions and 2.5～1.5 weight portions the preparation liquid of concentration 2000mg/L;
Get 30ml preparation liquid and 0.5mCi solid particle
131Ba microballoon tracer stirs into tracer suspension.
A kind of logging method of using the spike flow polymer-injected profile logging comprises the steps:
A. prepare tracer suspension, and join in the tracer ejector;
B. with the spike flow polymer-injected profile logging down to below the measuring well section 20m, at the uniform velocity, carry the above 20m of perforation place to end, the continuous measurement gamma ray curve is baseline, CCL and stream pressure log, and duplicate measurements 1～2 time;
C. after tracer suspension is evenly sprayed continuously by the tracer ejector in the top of top layer, carry out emitting isotope spike curved measurement at target zone;
D. at top, each interval of top layer, promptly tracer suspension sprays by tracer ejector point type in the upper and lower place of each injection allocation device, carries out one-point measurement, and suitable duplicate measurements.
The described tracer suspension preparation of step a method is as follows:
1.. cup type funnel is installed on the tracer ejector pipe nipple, and the slide rail of tracer ejector along device for formulating advanced in the device for formulating, make cup type funnel be parked in the proboscis funnel below of device for formulating top;
2.. will prepare liquid and pour in the cup type funnel, again with activity 0.5mCi's through the proboscis funnel
131The Ba microballoon is crossed funnel through proboscis and is poured in the cup type funnel 15, will prepare liquid at last again and pour in the cup type funnel through the proboscis funnel;
3.. the below along slide rail movable spray device pipe nipple to agitator, stir;
4.. open the ejector power switch tracer suspension for preparing is drawn in the fluid cylinder of ejector.
Step b in the said method is for determining that the natural gamma baseline is put, provided to the some location, the school is dark and verifying airtight well logging situation; Step c carries out the tagging curved measurement at target zone, explains for substratum fluid injection section and gives information; The one-point measurement that steps d is carried out is given information for dividing the poly-amount of interval notes to explain.Thereby the gained data is carried out analysis-by-synthesis obtain polymer-injected profile data more accurately.
Spike flow polymer-injected profile logging of the present invention makes with the suspension of tracer suspension preparation device preparation
131Ba microballoon tracer can well be suspended in the preparation liquid.
Spike flow polymer-injected profile logging of the present invention adopts the pointwise spray regime to measure the injection rate of dividing interval, measure branch substratum injection profile with continuously even spray regime, measurement lower limit is low, the precision height, and the cost of logging instrument of the present invention is low, reduce production costs, be particularly useful for the measurement of low injection rate well.
Description of drawings
Fig. 1 is the structural representation of logging instrument of the present invention
Fig. 2 is the structural representation of tracer suspension preparation device of the present invention
Fig. 3 is that the tracer ejector of logging instrument of the present invention is in the structural representation in the device for formulating
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of spike flow polymer-injected profile logging, comprise cable head 1, centralizer 2 and weighted lever, from top to bottom be connected with cable head 1, centralizer 2, remote measurement pipe nipple 3, tracer ejector 4 in turn, go up weighted lever 5, gamma-ray probe 6 and following weighted lever 7, wherein remote measurement pipe nipple upper end is collar locator CCL9, and the lower end is a pressure gauge 10; Have jet 11 on the tracer suspension ejector, inside is equipped with a continuous motor rotating; The gamma-ray probe upper end is nearly probe 12, and the lower end is a probe 13 far away.
As shown in Figures 2 and 3, a kind of spike flow polymer-injected profile logging tracer device for formulating, comprise control cabinet 26 and preparation case 16, preparation case 16 is installed on above the control cabinet 26, preparation case 16 both sides respectively have left side outlet 25 and right outlet 17, preparation case 16 fronts and both sides are equipped with stereotype, stereotype side's window in configuration case 16 fronts studs with lead glass screen 22, form isolated area, preparation case 16 bottoms are provided with guide rail 18, guide rail 18 stretches out the preparation case by the right side outlet 17 on preparation case right side, be provided with backplate 24 in the guide rail both sides, in isolated area, be provided with agitator 21 above the guide rail 18 side by side, proboscis funnel 20 and proboscis funnel 19, agitator 21 links to each other with weight 23, and weight 23 places lead glass screen 22 outsides.
For clearly demonstrating and understanding the present invention, layoutprocedure and the well logging process to tracer suspension is described in detail below.
The operating process of tracer suspension preparation is as follows:
One by hole 35 taking-up power-line plugs, and its is inserted in 220Vac electrical socket, open the luminous lamp switch 33 in the casing.
Two are placed on the right-hand member of slide rail 18 with tracer ejector pipe nipple 4, and spray-hole up; The clip 14 that has the box screw is enclosed within on the ejector pipe nipple 4, screw is aimed at the fastening clip 14 in back with spray-hole 11; The pin thread screw of cup type funnel 15 is tightened in the screw of clip 14.
Three advance right opening 17 with ejector pipe nipple 4 along slide rail 18, make cup type funnel 15 be parked in proboscis funnel 19 and proboscis funnel 20 belows, and backplate 24 is set upright the effluent that it follows proboscis funnel 19 and 20.
Four prepare liquid with 30ml, pour in the cup type funnel 15 through proboscis funnel 19; Again with activity 0.5mCi's
131Ba microballoon (volume is no more than 50ml) is poured in the cup type funnel 15 through proboscis funnel 20; The last process proboscis funnel 19 of again 70ml being prepared liquid is poured in the cup type funnel 15.
Five along slide rail 18 to left end movable spray device pipe nipple 4, make cup type funnel 15 be parked in agitator below, the outer weight 23 of operation panel allows agitator enter in the preparation liquid of 15 li in cup type funnel, and cup type filler cap is buckled on the cup type funnel 15.
Six take out the power supply lead wire of 35Vdc from the right ports 34 of casing, and its negative terminal crocodile clip is clipped on the shell of tracer suspension ejector pipe nipple 4, and anode banana joint injects in the jack of ejector pipe nipple 4 right-hand members.
Minion opens the power switch 31 of agitator, and the agitator speed that turns clockwise is regulated turn-knob 32, makes agitator speed remain on 50～60 rev/mins, stirs after 1～2 minute and shuts down, and makes tracer suspension.
Octavo opens ejector power switch 27 and presses suction knob 29, and tracer suspension is inhaled in the fluid cylinder of ejector 4 at leisure in the cup type funnel 15.Soakage is sucking---and injection capacity shows in 28 and is shown, can send alarm signal after being filled, and presses immediately and sucks knob 29, stops power supply.For getting rid of the gas that sucks suspension, press and spray knob 30, suck---injection capacity remained 80% o'clock, pressed to suck knob 29, till being filled again.
Nine handle weight 23, with agitator 21 from 15 li propositions of cup type funnel, and make that to have radioisotopic tracer hanging drop clean, promote ejector pipe nipple 4 along slide rail 18 to left end, cup type funnel 15 is parked in outside the preparation case 16 by left opening 17, pull cup type funnel 15 down, remaining tracer suspension is wherein poured in the waste liquid cup of lead protection layer.
Ten for cleaning cup type funnel 15, proboscis funnel 19 and agitator 21, promote ejector pipe nipple 4 along slide rail 18 to right-hand member, cup type funnel 15 is parked in below the proboscis funnel 19 by left opening 25, pour hot water 150ml into from proboscis funnel 19, again along slide rail 18 to left end movable spray device pipe nipple 4, cup type funnel 15 is parked in below the agitator, handle weight 23, allow agitator 21 enter in the clear water of 15 li in cup type funnel, and cup type filler cap is buckled on the cup type funnel 15.The power switch 31 of turn on agitator 21, the agitator speed that turns clockwise is regulated turn-knob 32, makes agitator speed remain on 70～80 rev/mins, and whether stirring and washing was shut down after 5 minutes, proposed agitator 21, observe on the agitator 21 residual in addition by lead glass screen 22
131The Ba microballoon.If there is residue then to clean once more ...After cleaning up, promote ejector pipe nipple 4 to left end, cup type funnel 15 is parked in outside the preparation case by left opening 25, pull cup type funnel 15 down, remaining tracer suspension is wherein poured in the waste liquid cup along slide rail 18.
11 are unloading cup type funnel 15 and clip 14 rapidly, remove banana joint and crocodile clip, push ejector pipe nipple 4 to low order end along slide rail 18, and it is taken off from casing, paste plastic adhesive tape at jet 11 places, prevent that tracer suspension from revealing in transit.
12 pour the waste liquid in the waste liquid cup in the radioactive liquid waste pond into, and the waste liquid cup is cleaned up.
The well logging process is as follows:
One, will logging instrument down to below the measuring well section 20m, carry continuous measurement gamma ray curve (baseline) with 600m/h at the uniform velocity and end the above 20m of perforation place, and duplicate measurements 1～2 time, the natural gamma baseline that records should have unusually tangible, and good reproducibility.
The gamma ray curve that natural gamma baseline and open hole well are recorded carries out the school and contrasts deeply.If the natural gamma baseline does not have significantly unusual, then need with the magnetic mark and the in addition long school of instrument of logging cable dark.
Two, floor panel piston direction switch is thrown " spray; " the position, the rotational speed regulation that turns clockwise turn-knob increases current of electric, ejector evenly sprayed tracer suspension 10～15 minutes continuously, made the residue demonstration of tracer suspension capacity in the ejector remain on 5%.
Three, with logging instrument once more down to measuring well section bottom, carry gamma curve-spike curve after tracer suspension is sprayed in continuous measurement at the uniform velocity with 600m/h; The repeatedly duplicate measurements spike curve of making the best use of time as far as possible promptly carries out time-lapse logging, the variation of every spike curve in the close observation time-lapse logging, and in computer, preserve.
Minute injection well of interval injection allocation is carried out a survey, be used for calculating branch interval injection rate.Downhole probe is parked in 15～20m place, top of the first injection allocation device, avoid the undergauge position of downhole tool.Utilize the time to drive, floor panel piston direction switch is remained on the position of " spray ", spray knob by spike, point type injection tracer suspension carries out a survey by the mode of spike flow meter, duplicate measurements 4～5 times immediately.Fix a point downhole probe in the second level successively then, the third level ... injection allocation device top place carry out point type again and spray tracer suspension, carry out a survey, and duplicate measurements 4～5 times.The result preserves in computer with point-to-point measurement.
Four, after well logging finishes, will in well, ejector carrying out " suction ", " spray " repeatedly make in the ejector
131Ba microballoon tracer suspension gushes out as much as possible.
Five, after the well logging ejector pipe nipple being delivered to radio isotope preparation chamber preserves.
Claims (5)
1. spike flow polymer-injected profile logging, comprise remote measurement pipe nipple, tracer ejector, gamma-ray probe, it is characterized in that a continuous motor rotating is installed in the tracer ejector, make the tracer ejector spray tracer suspension continuously uniformly, carry out continuous measurement.
2. spike flow polymer-injected profile logging tracer device for formulating, it is characterized in that comprising control cabinet and preparation case, the preparation case is installed on above the control cabinet, preparation case both sides have outlet, front and both sides are equipped with stereotype in the preparation case, on stereotype side's window in preparation case front, stud with lead glass screen, preparation case bottom is provided with guide rail, guide rail stretches out the preparation case by the right side outlet on preparation case right side, be provided with backplate in the guide rail both sides, be provided with agitator and funnel in isolated area above the guide rail, agitator links to each other with weight, and weight places the lead glass screen outside.
3. tracer suspension is mixed with the starch of the melon glue of the solid polymer of 4.5～3.5 weight portions, 4.5～3.5 weight portions and 2.5～1.5 weight portions the preparation liquid of concentration 2000mg/L; Get 30ml preparation liquid and 0.5mCi solid particle
131Ba microballoon tracer stirs into tracer suspension.
4. a logging method of using the spike flow polymer-injected profile logging comprises the steps:
A. prepare tracer suspension, and join in the tracer ejector;
B. the spike flow polymer-injected profile logging is arrived below the measuring well section 20m down, carry the above 20m of perforation place to end at the uniform velocity, continuous measurement gamma ray curve, CCL and stream are pressed log;
C. after tracer is evenly sprayed continuously by the tracer ejector in the top of top layer, carry out emitting isotope spike curved measurement at target zone;
D. at top, each interval of top layer, promptly tracer sprays by tracer ejector point type in the upper and lower place of each injection allocation device, carries out one-point measurement, and suitable duplicate measurements.
5. the logging method of use spike flow polymer-injected profile logging according to claim 3, it is as follows to it is characterized by the described tracer suspension preparation of step a method:
1.. cup type funnel is installed on the tracer ejector pipe nipple, and the slide rail rail of tracer ejector along device for formulating advanced in the device for formulating, make cup type funnel be parked in the proboscis funnel below of device for formulating top;
2.. will prepare liquid and pour in the cup type funnel, again with activity 0.5mCi's through the proboscis funnel
131The Ba microballoon is crossed funnel through proboscis and is poured in the cup type funnel 15, will prepare liquid at last again and pour in the cup type funnel through the proboscis funnel;
3.. the below along slide rail movable spray device pipe nipple to agitator, stir;
4.. open the ejector power switch tracer suspension for preparing is drawn in the fluid cylinder of ejector.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101043476A CN101122230B (en) | 2006-08-08 | 2006-08-08 | Tracing flow polymer-injected profile logging device, tracing agent and confection device and logging method |
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| CN2006101043476A CN101122230B (en) | 2006-08-08 | 2006-08-08 | Tracing flow polymer-injected profile logging device, tracing agent and confection device and logging method |
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| CN101122230A true CN101122230A (en) | 2008-02-13 |
| CN101122230B CN101122230B (en) | 2012-07-04 |
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| CN102828743B (en) * | 2012-09-15 | 2015-01-21 | 东北石油大学 | Tracing quantum dot water injection cross-section logging method |
| CN103132986A (en) * | 2013-02-05 | 2013-06-05 | 中联煤层气国家工程研究中心有限责任公司 | Method for measuring liquid production capacities of different reservoir stratums of coal-bed gas well |
| CN103132986B (en) * | 2013-02-05 | 2016-06-15 | 中联煤层气国家工程研究中心有限责任公司 | A kind of method of the Liquid output of the different reservoir measuring coal bed gas well |
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| CN111219184B (en) * | 2020-01-08 | 2023-03-14 | 河南省科学院同位素研究所有限责任公司 | Method for performing injection profile logging on nitrogen injection gas well by utilizing radioactive isotope |
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