CN1219205C - Rock fragment depicting instrument and quantitative analysis method of lithologic character and oil-bearing abundance of rock fragment - Google Patents
Rock fragment depicting instrument and quantitative analysis method of lithologic character and oil-bearing abundance of rock fragment Download PDFInfo
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Abstract
The present invention relates to a rock swarf description instrument and a quantitative analysis method for the rock character and the oil abundance of rock swarf. The rock swarf description instrument comprises a power supply, a box body, a gamma ray detector, an electronic processing circuit, a photography device, a rock swarf sample box and an ultraviolet light source, wherein the gamma ray detector with a shielding structure is arranged on a base plate of the box body; the rock swarf sample box is arranged on the upper end part of a scintillation crystal of the detector, and the electronic photography device and the ultraviolet light source are arranged on the scintillation crystal of the detector; pulse signals obtained by the detector are input into the electronic processing circuit to identify the input end of an amplification stage comparator; the output of the electronic processing circuit is connected with a computer; and a video line of the electronic photography device is connected with a video interface of the computer. The oil abundance of the rock swarf is detected by determining the proportion of the fluorescence area of fluorescence pictures of the rock swarf to be detected in the area of an analysis region, and the proportion number of sand mud rock is judged by adopting counting processing of the gamma pulses obtained by the gamma detector. The present invention has the advantages of low cost, rapid and convenient operation, and high efficiency, and furthermore, the present invention promotes the development of oil drilling technology in China.
Description
One. technical field: the present invention relates to a kind of analytical equipment and oil-abundance analytical approach of oil drilling landwaste, particularly relate to the quantitative analysis method of a kind of cutting description instrument and landwaste lithology and oil-abundance.
Two. background technology: as the tap the latent power innovation and drill new oil gas field of exploitation maturing field, the lithology of landwaste and oil-containing quantitative analysis and equipment thereof, be reserves and the extraction value imperative equipment and the technology of oil drilling evaluating oilfield, China's oil probing industry was generally used three cutter type drill bit in the past, the cutting grain of its probing is bigger, can rely on people's eyes to come qualitative observation understanding lithology and oil-abundance, but the recognition result error is bigger, because be subjected to identification person's on-site experience, subjective factors such as the power influence of technical merit height and sense of responsibility also is subject to light luminance simultaneously, objective factors such as landwaste humidity and cutting grain size are disturbed.Along with the progress of science and technology and the progressively raising of prospect pit technology, three cutter type drill bit are progressively replaced by the PDC drill bit, the landwaste that the PDC drill bit gets out is near Powdered, be difficult to detect by an unaided eye and determine lithology and oil-abundance, urgently seek a kind of new tool, new method is judged the lithology of landwaste and estimated the landwaste oil-abundance.
From the seventies in last century, generally utilize the landwaste method for pyrolysis to come fast quantitative analysis evaluation of oil source rock and oil-saturated reservoir rock both at home and abroad, estimate degree of ripeness, organic matter type and the produce oil reserves of landwaste, and estimate the oily grade of oil-saturated reservoir rock fast and in time find show of oil and gas in the drilling process, with this formation testing foundation after as drilling well.It is more accurate that this method obtains data, but workload is big, and the time is longer, and it is more loaded down with trivial details to work; CN1157917A, application number 96114143 discloses a kind of " Talus quantitative evaluation instrument ", this estimates instrument by microcomputer 1, sales kit (SK) 2, photoelectric scanner 3, white light 4 is formed, photoelectric scanner 3 is connected with microcomputer 1 usefulness cable 9, the top of sales kit (SK) 2 is equipped with photoelectric scanner 3 and white light 4, below white light 4, be placed with sample disc and standard specimen platform 8, it is introduced that can improve landwaste records into technical merit, realize the chip sample sandstone, mud stone, the quantitative automatic detection evaluation of oil-bearing sand percentage amounts and oil-abundance, provide objective, evaluating data accurately improves the reliability of sieve residue log data, practicality and comparability.This evaluation instrument is except simply introducing the electric weight annexation between each parts, and the evaluation principle and the concrete job step of instrument do not estimated in full disclosure, still can't understand concrete evaluation principle and process condition after the people is studied carefully; CN1373357A, application number 02116558.0 denomination of invention is: rock sample observer, this device has been Duoed and at the ocular lens of camera interface microscope has been installed more than estimating instrument, allegedly can differentiate the lithology and the oil-abundance of superfine little rock sample, qualitative analysis is accurate, realizes the storage of rock sample image, saves rock sample transportation and necessary expense and uses, can realize the remote transmission of rock sample image, be convenient to the well logging Comprehensive Treatment for Information.This application and rock sample are estimated instrument to have similar weak point are to disclose insufficiently, do not know this device is how to be used for judging lithology and show of oil and gas after reading instructions.
Three. summary of the invention:
(1) technical matters to be solved by this invention: utilize nuclear technology, electronic circuit and computer image processing technology to realize the quantitative analysis method of cutting description instrument and landwaste lithology and oil-abundance.
(2) technical scheme of the present invention is: a kind of cutting description instrument, contain power supply, casing, gamma ray detectors, camera head, the chip sample box, ultraviolet source, the gamma ray detectors that has shielding construction, comprise scintillation crystal and photomultiplier and high-pressure modular, sample box is installed in the scintillation crystal upper end, camera head and ultraviolet source are installed above it, three lead A that gamma ray detectors connects outward, B, C connects the output terminal of high-pressure modular respectively, Dc low voltage power supply, differentiate the reverse input end of amplifying circuit comparer in the electronic processing circuit, the output terminal of electronic processing circuit links to each other with computing machine serial port input end, and the video line of electronic image pickup device connects the video interface of computing machine.
Described cutting description instrument, the outer shape of shielding construction and scintillation crystal and photomultiplier is complementary, the surfaces externally and internally of shielding construction is a Stainless Steel Shell, it between the two housings lead material screen layer, the gamma ray detectors lower end is installed on the inner bottom surface of shielding construction by spring, the variable cross section transition section place of detector tightens up by elastic washer and shielding construction, above sample box, be provided with the Abdeckschieber cover plate of shielding construction, the chip sample box is for falling " recessed " font or short cylindrical shape structure, the pick-up lens of electronic image pickup device to the distance between the sample box upper surface within the zoom focal range of this pick-up lens, electronic image pickup device is fixed on the support by fastening collar, support is fixed on the wallboards of box body, ultraviolet source is installed on the lamp bracket of camera both sides of camera head, lamp bracket is fixed on the box body wall, electronic image pickup device is that electro-photographic head and video card are formed, or be the electronic digital video camera, or be digital camera, or device for constituting by non-electronic image pickup device and scanner.
Described cutting description instrument, be provided with the Abdeckschieber cover plate of shielding construction, its lower surface is equipped with retainer, ball is housed in the frame, Abdeckschieber cover plate one sidewinders pearl and cooperates with the guide rail that has V-shaped groove, the opposite side ball cooperates with the guide rail that has groove, guide rail is fixed on the middle crossbeam of casing, operating handle is equipped with in Abdeckschieber cover plate front side, and spacer pin is housed on the trailing flank, and electronic processing circuit is installed concentratedly in the circuit board, the wiring board clamping is mounted in the card slot in the casing, the scintillation crystal of gamma ray detection device is the mineral crystal powder, or is organic crystal, or is liquid crystal or plastic crystal.
Described cutting description instrument, electronic processing circuit contains the discriminating amplifying circuit, shaping circuit, single-chip microcomputer counting and communicating circuit, gamma ray detectors is input to the backward end of differentiating the amplifying circuit comparer the electronic processing circuit from the pulse signal of C line output, the end in the same way of comparer provides threshold voltage by power supply and mu balanced circuit, the output pulse signal of comparer is input to the input end of shaping circuit behind the frequency divider frequency division, the output signal of shaping circuit is imported the T0 pin of single-chip microcomputer and is counted after step-down, count value is by serial port RXD, TXD is input to the input end of communicating circuit transceiver, the computing machine serial port is received in the output of transceiver, carry out data processing by computing machine, ultraviolet source voltage is alternating current 220V, electronic processing circuit and high-pressure modular be required+and 5V, ± 12V power supply is provided by Switching Power Supply.
Described cutting description instrument, in electronic processing circuit, the comparer of differentiating amplifying circuit is LM111, shaping circuit adopts integrated circuit CD14538, counting adopts single-chip microcomputer 89C51, the transceiver of communicating circuit adopts integrated circuit MAX202, the pulse signal of gamma ray detectors output is input to the backward end of differentiating amplifying circuit comparer LM111, the end in the same way of LM111 provides threshold voltage by power supply and mu balanced circuit, the pulse signal of comparer LM111 output is input to the input end of shaping integrated circuit (IC) chip CD14538 behind frequency divider CD4040 frequency division, output signal after chip 14538 shapings is imported the T0 pin of single-chip microcomputer 89C51 and is counted after integrated circuit CD40109 step-down, count value is by its serial port RXD, TXD is input to the input end R of communication IC transceiver MAX202
2O, T
2The I mouth, the output terminal R of MAX202
2O, T
2I inserts computing machine by the computing machine serial port, shaping circuit or be CD4098, comparer or be LM319, or be LM311, single-chip microcomputer or be 31, or be 51, or be 52 family chips, or be MLU, or be tm320 series, or use rolling counters forward, counting output is through latch or transceiver parallel port or serial port input computing machine.
A kind of quantitative analysis method of landwaste oil-abundance, use electronic image acquisition means camera and video card, or electronic digital video camera, or digital camera, the clear electronics fluorescence of landwaste picture under the environment medium ultraviolet light irradiation of picked-up darkroom, or by non-electronic image pickup device collection rock debris fluorescent picture, or with scanner with picture digitized processing input computing machine, independently data file or database file form are stored in the computing machine with computing machine, comprise the related standards pictorial information of known oil-abundance and the serial picture of landwaste to be measured, the fluorescence area that landwaste to be measured reflects under uviol lamp accounts for the proportional representation landwaste oil-abundance to be measured of analyzed area area, i.e. oleaginousness.
The quantitative analysis method of described landwaste oil-abundance, a certain landwaste electronic pictures is in selected analyzed area, with the outside in proportion chosen area in electronic pictures center, be to the maximum all, or the oil-abundance in the zone of confining with rectangle or circular geometry figure, the ratio value that calculates the shared selection area bitmap point sum of bitmap point summation of pigment value condition up to specification with the bitmap point pigment of analysis selection area is represented, is called landwaste oil-abundance to be measured, i.e. oleaginousness.
The quantitative analysis method of described landwaste oil-abundance, when analyzing oil-abundance, demarcate automatically by artificial demarcation or computing machine earlier and contain oil drop and tolerance, get the standard landwaste of a known oil-abundance, at the darkroom environment, obtain a rock debris fluorescent picture under the ultraviolet source, or choose the normal pictures that takes in advance, artificial or computing machine is chosen on picture automatically and is contained oil drop, specify or choose that of the brightest place of fluorescence, pigment information by this or each bitmap point on the computer analyzing picture, comprise red, green, blue component, this gray scale maybe, deposit computing machine in, and with this pigment value of putting or gray scale as analyzing the basic of oil-abundance according to parameter, the artificial appointment of tolerance or the automatic demarcation of computing machine, containing on the definite basis of oil drop, subtract by setting repeatedly to increase gradually or return, or increase gradually automatically or return with computing machine and subtract, the tolerance of the oil-abundance value that sequential analysis is come out during near the known standard value be analyze oil-abundance second according to parameter, on the above-mentioned basis that has two foundations analyzing oil-abundance, after obtaining a certain rock debris fluorescent picture, at selected analysis area, with the outside in proportion chosen area in electronic pictures center, be to the maximum all, or the zone of confining with rectangle or circular geometry figure, analyze the pigment value of each bitmap point, calculate the ratio of the shared selection area bitmap point sum of bitmap point summation of each pigment value or gray scale condition up to specification, be oil-abundance, also claim oleaginousness, be that oil-sand/landwaste is an oil-abundance, to be oil-abundance multiply by 100 divided by the ratio of sandstone and landwaste to the number percent of oil-sand/sandstone.
The quantitative analysis method of described landwaste oil-abundance, the pigment value condition up to specification of bitmap point is: this pigment value of information deducts the absolute value that contains the oil drop pigment value of information should be less than tolerance.
(3) positive beneficial effect of the present invention:
1. the present invention has used gamma ray detectors and electronic processing circuit, can detect the sand shale ratio of tested landwaste accurately, intuitively, easily in real time at the probing scene, again relevant instrument is gone into the well after the breakthrough drilling well and mend the conventional method of surveying, for judging that more exactly lithology provides scientific basis, and in time understand the drilling well situation, solve the problem that occurs in the drilling well.
2. the present invention utilizes electronic digital camera technique and advanced computer image processing technology to realize the detection by quantitative of landwaste oleaginousness and lithologic analysis, cuttings analysis is carried out the transition to by instrument and equipment robotization quantitative test by the range estimation qualitative analysis, efficient and convenient, shorten evaluation cycle greatly, increase work efficiency, reduce the field drilling cost greatly, increased substantially accuracy of detection.
3. cutting description instrument of the present invention is broken through traditional at indoor qualitative evaluating method, can realize the quantitative visual evaluation of landwaste lithology and oleaginousness at situ of drilling well.
4. the present invention implements to promote easily, will promote the development of China's oil drilling technique, for China Petroleum contributes.
Four. description of drawings:
Fig. 1 is a cutting description instrument general structure synoptic diagram
Fig. 2 is the side-looking structural representation of cutting description instrument shown in Figure 1
Fig. 3 is an A-A cross-sectional view among Fig. 1
Fig. 4 is the gamma ray detectors structural representation
Fig. 5 is the electronic image pickup device structural representation
Fig. 6 is a ultraviolet source mounting structure synoptic diagram
Fig. 7 is that power supply and signaling interface are arranged synoptic diagram
Fig. 8 is a cutting description instrument principle of work block diagram
Fig. 9 is the electronic processing circuit synoptic diagram of cutting description instrument
Figure 10 is a cutting description instrument main program flow block scheme
Figure 11 is a landwaste oil-abundance subroutine flow diagram
Figure 12 is the artificial subroutine flow diagram of demarcating
Figure 13 demarcates the subroutine flow diagram automatically
Figure 14 is a data output subsystem logical flow chart
One of fluorescence oil-sand oil-containing face image that Figure 15 takes for the cutting description instrument
Two of the fluorescence oil-sand oil-containing face image that Figure 16 takes for the cutting description instrument
Three of the fluorescence oil-sand oil-containing face image that Figure 17 takes for the cutting description instrument
Five. embodiment:
Embodiment one: referring to Fig. 1～14,1 is gamma ray detectors among the figure, this detector is fixed on the base plate of casing 4, detector 1 is stacked together by scintillation crystal 19 and photomultiplier 20 and forms, scintillation crystal 19 is a sodium iodide crystal, detector 1 is fixed on the shielding construction bottom by spring 25 and picks out three lead A from photomultiplier 20, B, C, from the bottom sidewise hole of shielding construction, pass, connect the high-voltage output end in the electronic processing circuit respectively,-12V power supply, differentiate the input of comparer in the amplifying circuit, the shielding construction surfaces externally and internally is a Stainless Steel Shell 22,24, the centre is a shielding material layer lead 23, its shape cardinal principle is complementary with the profile of detector 1, horizontal variable cross section section at detector 1 is provided with elastic washer 27, it is tightr that detector 1 is cooperated with shielding construction, 21 is scintillation crystal top packaging shell, be fixed on the shielding construction inside surface housing by 26 clamp-screws, 18 for being sleeved on " recessed " font sample box on scintillation crystal 19 tops, the box body upper end is opened wide, be used for the muck crumb, Abdeckschieber cover plate 3 is installed above sample box 18, the cover plate skin is a Stainless Steel Shell, shielding material layer lead is equipped with in the inside, before cover plate 3 is installed in by ball and retainer (not drawing among the figure), aft ramp 15, on 16, electronic processing circuit plate 6 is fixed on the upper right holding frame of casing 4,9 is the violet source ballast resistor, 11 is the electronic image pickup device power supply, 10 is the fromer rail chute, 12 is cutting description instrument gauge tap, 13 is power light, 12 and 13 are installed on the front door of casing 4,14 is the feet of casing 4,17 is contact-making switch, 2 is electronic image pickup device, be fixed on the support 30 by tight loop 31 and securing member 29, support 30 is fixed on the casing, 32 are the switching tube, 33 is optical filtering, 28 is liner, 7 and 8 is power lead and video line, be connected with the video card interface 37 of computing machine, 38 is serial ports of computers, 39 are supply socket, 40 is terminal box, ultraviolet tube 5 is installed on the tube face at tube stand 34 two ends, tube stand 34 is fixed on the reflection shield 35, reflection shield 35 is fixed on the Lamp shade holder 36, or is fixed between casing 4 and the support 36, and ultraviolet lamp tube 5 is installed about near the camera head lens.
The electronic processing circuit of cutting description instrument+5V and ± the 12V power supply provides by Switching Power Supply 1 and 2, the photomultiplier operating voltage of scintillation counter is provided by high-pressure modular 1A1, as shown in Figure 9, red line in 5 lead-in wires of high-pressure modular 1A1 connects+the 12V power supply, black line ground connection, connect between white line and the black line and adjust resistance 1R10 and 1R11, regulate its big I and change output, yellow line is a high-voltage output end, the lead-in wire A that connection is picked out by detector, lead-in wire B connects-the 12V power supply, the pulse signal of lead-in wire C output connects the backward end of differentiating the comparer LM311 of amplifying circuit in the electronic processing circuit through filter capacitor 1C7,1 of LM311,4 pin ground connection, 5,6,8 pin connect+the 12V power supply, + 12V power supply is through current-limiting resistance 1R1 and voltage stabilizing diode 1V1 ground connection, the voltage stabilizing of diode 1V1 exports one the tunnel through resistance 1R3, variable resistor 1RP1, the resistance 1R4 ground connection of connecting, the backward end of comparer LM311 is also inserted on another road through resistance 1R2, with the pulse input signal parallel connection, the centre tapped voltage output of variable resistor 1RP1 series resistor 1R5 inserts the end in the same way of comparer LM311 after direct earth capacitance 1C8 filtering, the pulse signal that will be lower than this voltage as threshold voltage removes, to reach the purpose of removing glitch, output terminal 7 pin of LM311 connect+the 12V power supply through resistance 1R6, simultaneously shaping amplified pulse signal input 1D1 is carried out frequency division, prevent the too high Lou meter that overlaps to form of pulse signal frequency, frequency divider adopts binary counter CD4040,10 (CLK) pin is input, 9 (Q1) pin is output, and 11 (RST) pin is through resistance 1R7 ground connection; Pulse signal behind the frequency division inserts 4 pin of shaping circuit 1D2 (adopting chip 4538), and 4538 6 pin are output, and 4538 2 pin connect+the 12V power supply through resistance 1R8, are connected to electric capacity 1C9 between 1,2 pin, and 3 pin connect+the 12V power supply, 5 and 7 pin short circuits; Because output signal voltage is higher, count for ease of single-chip microcomputer, adopt integrated circuit 40109 (1D3) voltage to be reduced to+5V, 40109 2 and 16 pin connect+the 5V power supply, 1 pin connects+the 12V power supply, 3 pin are input, output terminal 4 pin connect 14 pin (counting input T0) of single-chip microcomputer (1D4) 89C52, count by single-chip microcomputer, 31 pin of 89C52 connect+the 5V power supply, + 5V power supply series capacitance 1C12 and resistance 1R9 ground connection, the tie point of 1R9 and 1C12 inserts 9 pin of single-chip microcomputer as resetting input, clock with in connect mode, quartz oscillator inserts 18 of 89C52,19 pin, electric capacity 1C10 series capacitance 1C11 is connected in parallel on the quartz oscillator two ends, 1C10, the tie point ground connection of 1C11, count value output is by 10,11 (RXD, TXD) pin is through transceiver (1D5) input computing machine, 9 of transceiver MAX202,10 pin connect 10 and 11 pin of 89C52 respectively, 1 of MAX202,3 and 4, meet electric capacity 1C13 and 1C14 between 5 pin respectively, 16 pin connect+the 5V power supply, and 2, be connected to electric capacity 1C15 between 16 pin, meet electric capacity 1C16 between 6 and 16 pin, 1C17, electric capacity 1C16, the tie point ground connection of 1C17,15 pin ground connection, 7 and 8 are output access computing machine.
In the present embodiment, the gamma ray detectors scintillation crystal uses sodium iodide crystal, and photomultiplier adopts the loose company in Japanese shore product, gamma rays sensing range 0-300API, sample error is less than 10%, and sense cycle can be 30 seconds, 60 seconds, 90 seconds, 120 seconds, 150 seconds, 180 seconds etc. many grades, statistical fluctuation is smaller or equal to 3%, chip sample amount 2.35 * 10
5MM
3+ 5%, sample-out count is less than 20CPS to be equaled, electronic image pickup device adopts the up-to-date CCD imaging device of Japanese Sony Corporation, horizontal resolution is greater than 420 radio frequency lines, highly sensitive, minimal illumination only needs 0.0005 Lux (F1.2), use civil power or AC24V/50HZ or DC12V power supply, ultraviolet source is a SZ-A type uviol lamp, uses the 89C52 single-chip microcomputer, and serial ports can select to use COM1, three of video port SVHS, AV1, AV2, AV1 commonly used, video parameter brightness, contrast, colourity, resolution, video system look have three kinds of selections, use pal mode usually.
The detection of the collection of rock debris fluorescent picture and landwaste oil-abundance: at first connect video line, connect Serial Port Line, the native system analysis software is called in start.System will start with the parameter of acquiescence, can carry out parameter setting, modification this moment and demarcate a state of demarcating, demarcate again or use before demarcation all can, usually should disposable demarcation.
Open video port, under dark room conditions, open ultraviolet light, parameters such as the colourity of suitable adjusting electron camera, saturation degree, contrast are not so that there is the influence of any external light source, under distortionless prerequisite, pigment on the picture of picked-up is as far as possible near black, and it is constant to keep above-mentioned environmental parameter to be provided with later on.
When analyzing oil-abundance, contain the artificial demarcation of oil drop and tolerance: contain the artificial demarcation of oil drop: get the known standard landwaste of an oil-abundance under above-mentioned environment, absorb a standard rock debris fluorescent picture, manually choose after the amplification and contain oil drop, be often referred to that is decided to be fluorescent spot dot center high light, resolve this pigment value of picture by computer program, calculate and deposit in the pigment value of information (red, green, blue component etc.) of this point, computer software just with this pigment value as one of foundation of analyzing the landwaste oil-abundance; The artificial demarcation of tolerance: containing on the selected basis of oil drop, by the oil-abundance value manually setting (subtracting) repeatedly or come out with the computer program sequential analysis value of being near the mark as much as possible by increasing or returning, the tolerance of oil-abundance during near the known standard value be the computer program analysis oil-abundance that is used for other rock samples afterwards the analysis foundation two; Manually demarcate the subroutine program block scheme referring to Figure 12.
Contain the automatic demarcation of oil drop and tolerance when analyzing oil-abundance: contain the automatic demarcation of oil drop: get the known standard landwaste of an oil-abundance, under above-mentioned environment, obtain the fluorescence picture of standard landwaste, the pigment of each bitmap point on the computer analyzing picture, automatically analyze bright spot and obtain the pigment information of this point, it is gray scale, red, blue, green component value etc., computing machine just with the gray scale of this point as one of basic foundation of analyzing the landwaste oil-abundance; The automatic demarcation of tolerance: containing on the definite automatically basis of oil drop, computer program subtracts tolerance by increasing or returning automatically, so that the oil-abundance value that the computing machine sequential analysis the is come out value of being near the mark as much as possible, the tolerance of the oil-abundance that COMPUTER CALCULATION is come out during near the known standard value be computer program analysis back landwaste picture oil-abundance foundation two; Automatically demarcate the subroutine block scheme referring to Figure 13.
The computing machine that don't work is demarcated or artificial the demarcation automatically, on the basis that has two foundations analyzing oil-abundance, after obtaining a certain rock debris fluorescent picture to be measured, at selected analysis area, common way is with the outside in proportion chosen area of center picture, be to the maximum all, or with rectangle, some zones that geometric figures such as circle are confined, analyze the pigment of each bitmap point, calculate the pigment value and meet following condition: promptly this pigment value of information deducts and contains the oil drop pigment value of information and take absolute value and should account for the ratio value of selection area bitmap point sum less than the bitmap point summation of tolerance, be the oil-abundance of this landwaste, also claim oleaginousness.
The difference that the gamma count value that the cutting description instrument collects one-period from serial ports deducts the clean sandstone gamma value multiply by 100 then divided by the difference of mud stone and sandstone gamma number, obtain sandstone and landwaste ratio value, the ratio value of mud stone and landwaste equals 100 and deducts sandstone and landwaste ratio value, the number percent of oil rock and sandstone equals oil-abundance and multiply by 100 divided by sandstone and landwaste ratio, above unit is %, and the gamma count value that gamma value equals to record deducts the count value of the difference of clean sandstone gamma value divided by a standard A PI correspondence.Referring to Figure 10 cutting description instrument master routine block scheme.
Testing result is referring to " oil patch oil-sand content visual value and instrument detecting value contrast situation ".
Embodiment two: present embodiment and embodiment one are basic identical, and difference is, electronic image pickup device adopts digital camera, and single-chip microcomputer adopts 8051, and relevant details no longer repeats.
Embodiment three: present embodiment and embodiment one are basic identical, difference is, adopt non-electronic image pickup device, in the environment of darkroom, utilize ultraviolet light source to take out the fluorescence picture of landwaste earlier, with scanner the rock debris fluorescent picture is carried out digitized processing again, the input computing machine, might there be distortion in the fluorescence picture of Chu Liing in this way, single-chip microcomputer adopts 8031, and relevant details no longer repeats.
Can also enumerate other embodiment, enumerate no longer one by one at this.
Oil patch oil-sand content visual value and instrument detecting value contrast situation
Because geology (landwaste) well logging is limit by operative employee's working experience, specialized capability, level of skill, the different operating worker is to the oil-sand content range estimation of same bag landwaste, and the oil-sand content value of its qualitative discrimination has bigger difference.At the scene in the practical operation, the side value of estimating of general fluorescence oil-sand content is with 5% multiple increase and decrease, and limited by people's subjective consciousness, often has certain deviation.And " cutting description instrument " selects rational running parameter (tolerance, gray scale, filter etc.) after standard specimen is demarcated, and the oil-sand content of its mensuration is more objective, true.
Following contrast table has reflected three field observation persons, at the contrast situation of Figure 15, Figure 16, different oil-sand content sample observations shown in Figure 17 and this instrument detecting value.Because the machine collection as calculated of fluorescence oil-sand, eye-catching white oil-sand has attracted observer's sight line, often causes the oil-bearing area of the excessive estimation oil-sand of observer.Make oil-sand content describe distortion.
Man-machine detection case contrast table
| Figure 15 | Figure 16 | Figure 17 | |
| Observer A | 15％ | 30％ | 55％ |
| | 20％ | 35％ | 50％ |
| | 10％ | 25％ | 40％ |
| This instrument detecting | 13.65％ | 25.46％ | 38.82％ |
Claims (9)
1. cutting description instrument, contain power supply, casing, gamma ray detectors, camera head, the chip sample box, ultraviolet source, it is characterized in that: the gamma ray detectors that has shielding construction, comprise scintillation crystal and photomultiplier and high-pressure modular, sample box is installed in the scintillation crystal upper end, camera head and ultraviolet source are installed above it, three lead A that gamma ray detectors connects outward, B, C connects the output terminal of high-pressure modular respectively, Dc low voltage power supply, differentiate the reverse input end of amplifying circuit comparer in the electronic processing circuit, the output terminal of electronic processing circuit links to each other with computing machine serial port input end, and the video line of electronic image pickup device connects the video interface of computing machine.
2. cutting description instrument according to claim 1, it is characterized in that: the outer shape of shielding construction and scintillation crystal and photomultiplier is complementary, the surfaces externally and internally of shielding construction is a Stainless Steel Shell, it between the two housings lead material screen layer, the gamma ray detectors lower end is installed on the inner bottom surface of shielding construction by spring, the variable cross section transition section place of detector tightens up by elastic washer and shielding construction, above sample box, be provided with the Abdeckschieber cover plate of shielding construction, the chip sample box is for falling " recessed " font or short cylindrical shape structure, the pick-up lens of electronic image pickup device to the distance between the sample box upper surface within the zoom focal range of this pick-up lens, electronic image pickup device is fixed on the support by fastening collar, support is fixed on the wallboards of box body, ultraviolet source is installed on the lamp bracket of camera both sides of camera head, lamp bracket is fixed on the box body wall, electronic image pickup device is that electro-photographic head and video card are formed, or be the electronic digital video camera, or be digital camera, or device for constituting by non-electronic image pickup device and scanner.
3. cutting description instrument according to claim 1 and 2, it is characterized in that: the Abdeckschieber cover plate that is provided with shielding construction, its lower surface is equipped with retainer, ball is housed in the frame, Abdeckschieber cover plate one sidewinders pearl and cooperates with the guide rail that has V-shaped groove, the opposite side ball cooperates with the guide rail that has groove, guide rail is fixed on the middle crossbeam of casing, operating handle is equipped with in Abdeckschieber cover plate front side, spacer pin is housed on the trailing flank, electronic processing circuit is installed concentratedly in the circuit board, the wiring board clamping is mounted in the card slot in the casing, the scintillation crystal of gamma ray detection device is the mineral crystal powder, or is organic crystal, or is liquid crystal or plastic crystal.
4. cutting description instrument according to claim 1, it is characterized in that: electronic processing circuit contains the discriminating amplifying circuit, shaping circuit, single-chip microcomputer counting and communicating circuit, gamma ray detectors is input to the backward end of differentiating the amplifying circuit comparer the electronic processing circuit from the pulse signal of C line output, the end in the same way of comparer provides threshold voltage by power supply and mu balanced circuit, the output pulse signal of comparer is input to the input end of shaping circuit behind the frequency divider frequency division, the output signal of shaping circuit is imported the T0 pin of single-chip microcomputer and is counted after step-down, count value is by serial port RXD, TXD is input to the input end of communicating circuit transceiver, the computing machine serial port is received in the output of transceiver, carry out data processing by computing machine, ultraviolet source voltage is alternating current 220V, electronic processing circuit and high-pressure modular be required+and 5V, ± 12V power supply is provided by Switching Power Supply.
5. cutting description instrument according to claim 4, it is characterized in that: in electronic processing circuit, the comparer of differentiating amplifying circuit is LM111, shaping circuit adopts integrated circuit CD14538, counting adopts single-chip microcomputer 89C51, the transceiver of communicating circuit adopts integrated circuit MAX202, the pulse signal of gamma ray detectors output is input to the backward end of differentiating amplifying circuit comparer LM111, the end in the same way of LM111 provides threshold voltage by power supply and mu balanced circuit, the pulse signal of comparer LM111 output is input to the input end of shaping integrated circuit (IC) chip CD14538 behind frequency divider CD4040 frequency division, output signal after chip 14538 shapings is imported the T0 pin of single-chip microcomputer 89C51 and is counted after integrated circuit CD40109 step-down, count value is by its serial port RXD, TXD is input to the input end R of communication IC transceiver MAX202
2O, T
2The I mouth, the output terminal R of MAX202
2O, T
2I inserts computing machine by the computing machine serial port, shaping circuit or be CD4098, comparer or be LM319, or be LM311, single-chip microcomputer or be 31, or be 51, or be 52 family chips, or be MLU, or be tm320 series, or use rolling counters forward, counting output is through latch or transceiver parallel port or serial port input computing machine.
6. the quantitative analysis method of a landwaste oil-abundance, it is characterized in that: use electronic image acquisition means camera and video card, or electronic digital video camera, or digital camera, the clear electronics fluorescence of landwaste picture under the environment medium ultraviolet light irradiation of picked-up darkroom, or by non-electronic image pickup device collection rock debris fluorescent picture, or with scanner with picture digitized processing input computing machine, independently data file or database file form are stored in the computing machine with computing machine, comprise the related standards pictorial information of known oil-abundance and the serial picture of landwaste to be measured, the fluorescence area that landwaste to be measured reflects under uviol lamp accounts for the proportional representation landwaste oil-abundance to be measured of analyzed area area, i.e. oleaginousness.
7. the quantitative analysis method of landwaste oil-abundance according to claim 6, it is characterized in that: a certain landwaste electronic pictures is in selected analyzed area, with the outside in proportion chosen area in electronic pictures center, be to the maximum all, or the oil-abundance in the zone of confining with rectangle or circular geometry figure, the ratio value that calculates the shared selection area bitmap point sum of bitmap point summation of pigment value condition up to specification with the bitmap point pigment of analysis selection area is represented, be called landwaste oil-abundance to be measured, i.e. oleaginousness.
8. according to the quantitative analysis method of claim 6 or 7 described landwaste oil-abundances, it is characterized in that: when analyzing oil-abundance, contain oil drop and tolerance by artificial demarcation or automatic demarcation of computing machine earlier, get the standard landwaste of a known oil-abundance, at the darkroom environment, obtain a rock debris fluorescent picture under the ultraviolet source, or choose the normal pictures that takes in advance, artificial or computing machine is chosen on picture automatically and is contained oil drop, specify or choose that of the brightest place of fluorescence, pigment information by this or each bitmap point on the computer analyzing picture, comprise red, green, blue component, this gray scale maybe, deposit computing machine in, and with this pigment value of putting or gray scale as analyzing the basic of oil-abundance according to parameter, the artificial appointment of tolerance or the automatic demarcation of computing machine, containing on the definite basis of oil drop, subtract by setting repeatedly to increase gradually or return, or increase gradually automatically or return with computing machine and subtract, the tolerance of the oil-abundance value that sequential analysis is come out during near the known standard value be analyze oil-abundance second according to parameter, on the above-mentioned basis that has two foundations analyzing oil-abundance, after obtaining a certain rock debris fluorescent picture, at selected analysis area, with the outside in proportion chosen area in electronic pictures center, be to the maximum all, or the zone of confining with rectangle or circular geometry figure, analyze the pigment value of each bitmap point, calculate the ratio of the shared selection area bitmap point sum of bitmap point summation of each pigment value or gray scale condition up to specification, be oil-abundance, also claim oleaginousness, be that oil-sand/landwaste is an oil-abundance, to be oil-abundance multiply by 100 divided by the ratio of sandstone and landwaste to the number percent of oil-sand/sandstone.
9. the quantitative analysis method of landwaste oil-abundance according to claim 8 is characterized in that: the pigment value condition up to specification of bitmap point is: this pigment value of information deducts the absolute value that contains the oil drop pigment value of information should be less than tolerance.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03118719 CN1219205C (en) | 2003-03-01 | 2003-03-01 | Rock fragment depicting instrument and quantitative analysis method of lithologic character and oil-bearing abundance of rock fragment |
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| CN 03118719 CN1219205C (en) | 2003-03-01 | 2003-03-01 | Rock fragment depicting instrument and quantitative analysis method of lithologic character and oil-bearing abundance of rock fragment |
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| CN1219205C true CN1219205C (en) | 2005-09-14 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100390529C (en) * | 2005-01-17 | 2008-05-28 | 中国海洋大学 | Method for measuring oil content of debris and core in oil logging |
| CN101368481B (en) * | 2008-10-14 | 2012-02-01 | 中国石化集团华北石油局 | Quantitative analysis method for oil-containing abundance of nuclear magnetic resonance rock in petroleum well drilling |
| CN101937107B (en) * | 2009-06-30 | 2012-11-14 | 同方威视技术股份有限公司 | Cabinet and radioactive substance detection device |
| CN101603421B (en) * | 2009-07-13 | 2013-04-10 | 新疆鑫诚信石油技术服务有限公司 | Gamma radiation logging along drilling method for petroleum drilling fluid |
| CN102944570B (en) * | 2012-12-02 | 2014-11-26 | 天津陆海石油设备系统工程有限责任公司 | Analysis method for rock sample lithology denomination based on X-ray element fluorescence |
| CN103674116A (en) * | 2013-12-16 | 2014-03-26 | 天津陆海石油设备系统工程有限责任公司 | Double-vision-field rock debris analysis and explanation system |
| CN103628869B (en) * | 2013-12-20 | 2016-03-02 | 孙俊佚雄 | The online GR logging of landwaste towards lithology and logging method thereof |
| CN109060811B (en) * | 2018-10-26 | 2021-03-23 | 中国矿业大学(北京) | Oil shale oil content determination method based on image gray recognition |
| CN111707681B (en) * | 2019-03-18 | 2023-09-12 | 中国石油化工股份有限公司 | System and method for detecting element content in rock debris |
| CN113514897B (en) * | 2020-04-10 | 2024-03-01 | 中国石油化工股份有限公司 | Instrument for scanning and measuring natural gamma and gamma energy spectrum of rock sample |
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