JPS61108952A - Instrument for analyzing component of fluid to be measured containing petroleum - Google Patents

Abstract

PURPOSE:To make possible the online measurement of the component ratios of the petroleum, water and gas in fluid to be measured by providing an arithmetic unit which processes various sets of the data obtd. by subjecting the radiations transmitted through the fluid to be measured to detection processing. CONSTITUTION:At least the 1st and 2nd radiation measuring systems each constituted of a radiation source which irradiates radiations of either X rays or gamma rays to the fluid to be measured so as to transmit said fluid, a radiation detector and signal processing circuit are provided. The ratios of the petroleum, water and gaseous components in the fluid to be measured are determined from the four rules operations in the arithmetic unit by the prescribed equations (where dO, dW, dG are the total sum of the respective thickness of the petroleum, water and gas along the transmission path of the radiations in the fluid to be measured, D is the transmission thickness of the radiations in the fluid to be measured, muO, muW, muG, muO2, muW2, muG2 are the coefft. of mass absorption of the radiations of the 1st and 2nd radiation measuring system for the petroleum, water and gas respectively, piO, piW, piG are the densities of the petroleum, water and gas respectively, I1, I2 are respectively the intensities of the radiations of the 1st and 2nd radiation measuring systems a1, a2 are respectively constants).

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for analyzing the component ratio of a fluid to be measured containing petroleum produced from an oil well.

[Conventional technology]

Conventionally, test oil-water separators have been used to measure the amount of water contained in crude oil. This method involves separating the water in crude oil and then determining the amount of separated water as the water content.

[Problem that the invention seeks to solve]

However, with this method, the amount of water can only be measured using a batch method.In many cases, the oil and water in crude oil are emulsified, and in such cases, the oil and water are not completely separated, making it difficult to measure the water content. There are drawbacks such as giving errors to Also, usually
The test oil-water separator is large and has the disadvantage that it occupies valuable space on offshore oil drilling platforms. Another drawback is that separate measurement is required to measure the gas components in crude oil.

This invention was made in order to eliminate the drawbacks of the conventional ones as described above.1 This invention is an analysis device that can determine on-line the component ratios of oil, water, and gas in a fluid to be measured containing oil. It provides:

[Means for solving problems]

This invention relates to a radiation source that irradiates and transmits either X-rays or gamma rays to a fluid to be measured containing petroleum produced from an oil well, and a radiation detector that detects the radiation transmitted through the fluid to be measured. , process the signal of this radiation detector,
The first and second radiation measurement systems include at least first and second radiation measurement systems each including a signal processing circuit that outputs a signal based on the intensity of radiation that has passed through the fluid to be measured.
Oil in the fluid to be measured for each of those radiations.

The first and second radiation measurement systems are arranged so that the first and second series of absorption coefficients per unit thickness for water and gas heat ζ and the series (t, t, 1) are linearly independent of each other. A radiation source is selected, and the ratio of oil, water, and gas components in the fluid to be measured is calculated as a solution to the equation below, and the intensity of the transmitted radiation of the first and second radiation measurement systems is determined based on the signal of the signal processing circuit. a signal proportional to the logarithm of , the mass absorption coefficient of radiation of the first and second radiation measurement systems for oil, water, and gas, the density of oil, water, and gas, and the transmission thickness of radiation in the fluid to be measured. It is equipped with an arithmetic processing device that calculates from four arithmetic operations.

Equation dQ + dly + ctG= D/'0
11'O'O+7'W11'WdW"/'G11'Gd
G=at −h Itμot P□ d□+μWtl'
“a2-lnI” to WdW+μGzpGd.

Here, dQ * dW w 'G is the sum of the respective thicknesses of oil, water, and gas along the radiation transmission path in the fluid to be measured, which is the transmission thickness of radiation in the fluid to be measured s 1tos
+μwt tμo1, to 11μm1. μG is the mass absorption coefficient of the radiation of the first and second radiation measurement systems for oil, water, and gas, respectively; PO*PgsP is the density of oil, water, and gas, respectively; Il*Ec! are the first
and the intensity of the transmitted radiation of the second radiation measurement system, at *
Each at is a constant.

Other inventions of the present invention include a radiation source that irradiates and transmits either X-rays or gamma rays to a fluid to be measured containing petroleum produced from an oil well; At least first, second, and third radiation comprising a radiation detector that detects the Equipped with a measurement system, the first
．． The second and third radiation measurement systems consist of absorption coefficients per unit thickness for oil, water, gas, and sand in the fluid to be measured, respectively. (1, 1, 1, 1,) are linearly independent of each other. The second and third radiation sources of the measurement system are selected, and the proportions of oil, water, gas, and sand components in the fluid to be measured are calculated as a solution to the following equation based on the signal of the signal processing circuit. 1st. a signal proportional to the logarithm of the intensity of the transmitted radiation of the second and third radiation measurement systems;
Obtained from the four arithmetic operations of the mass absorption coefficient of radiation of the second and third radiation measurement systems for oil, water, gas, and sand, the density of oil, water, gas, and sand, and the transmission thickness of radiation in the fluid to be measured. It is equipped with an arithmetic processing unit.

Equation dQ+dW+dQ+d5D=DA)11'O
dO''/'WtP1yd1y+μcspcdc+μ5D
sP5Dd5D = al-A'n11potP□do
+PWtuxPWdW+μG! pG('G+μSD! psD
asD = a2-1n I2/'osPodo+μW
apWdW+ l'asf'ada+ /'5DseS
D"SD = am-1tI Is, where d□, dwr ctGl dsp is the sum of the respective thicknesses of oil, water, gas, and sand along the radiation transmission path in the fluid to be measured, and D is the thickness of the radiation Transmission thickness in the fluid to be measured 1μQ1+μWlsμG1・tμ53)1
sμ0! IμW2*μQ2+μ5DtsμoIIμl
Qsμ6・s: Your μSDm is the 1st. Mass absorption coefficients of radiation of the second and third radiation measurement systems for oil, water, gas, and sand, respectively, PQ * py t PQ e 1
'SD is the density% of oil, water, gas and sand, respectively.
Engineering 1p Itg Is is the 1st. 2nd and 3rd
The intensity of the transmitted radiation of the radiation measurement system, ate ale
al is a constant.

[Effect]

In the present invention, the first and second radiation measurement systems measure one of the radiations in oil in the fluid to be measured.

The first and second series of absorption coefficients per unit thickness for water and gas and the series (1, 1, 1) are mutually 1
Since the radiation sources of the first and second radiation measurement systems are selected so as to be independent, for example, 8 of oil, water, and gas
Since the component ratio can be analyzed using at least two radiation measurement systems for each component, the mechanism is relatively simple. Similarly, for example, it is possible to analyze the component proportions of eight components (oil, water, gas, and sand) using at least eight radiation measurement systems.

〔Example〕

Hereinafter, in the drawings (1
) is a radiation source that emits two types of gamma rays and X-rays with different photon energies, and (2) is a pulse that detects the radiation that has passed through the fluid to be measured, including petroleum (102), flowing in the pipe (101). A counting type radiation detector, (3) is a preamplifier that amplifies the pulse signal from the radiation detector, (4) is a main amplifier that further amplifies the signal from the preamplifier, and (5) and (6) are The first and second pulse height discriminators set the window levels corresponding to the two photon energies, and (7) processes the output of the pulse height discriminators and performs four arithmetic operations on a signal proportional to the logarithm of the transmitted radiation intensity. The arithmetic processing unit 1 (8) that calculates the petroleum, water, and gas components in crude oil is a display unit that displays the calculation results of the arithmetic processing unit, and (9) is a direct current that supplies operating voltage to the radiation detector. It is a high voltage power supply. (b) is (1)
There are two radiation measurement systems consisting of (2) (3) (4) (5) (6) (9). For each measurement system, the absorption coefficient per unit thickness in oil, water, and gas, that is, the number sequence consisting of the product of mass absorption coefficient and density, and the number sequence consisting of (1, 1, 1) are linearly independent of each other. The basic photon energy is selected, and the temperature and pressure values of crude oil are input to the arithmetic processing circuit (7) from the terminal (2).

As the radiation detector (2), a gas-filled proportional counter can be used, and measuring instruments such as a preamplifier, main amplifier, and pulse height discriminator are routinely used and available in the field of radiation measurement. There is no difficulty in doing so, and the arithmetic processing device can be easily constructed using a microcomputer. Alternatively, it is also easy to configure this arithmetic processing device with an analog circuit.

Now, the attenuation of radiation in a substance is generally described by:

where 0 is the intensity of incident radiation) ■ is the intensity of transmitted radiation, μ is the radiation mass absorption coefficient of the material, P is the density of the material, d
is the transmission thickness in the material. Therefore, the radiation transmission distance of the crude oil in the pipe is D (cIrL), and the total thickness of the petroleum component is d.
□ s The total thickness of the water component is dy s The total thickness of the gas component is dG
Also μ0. μW−μG is the radiation mass absorption coefficient of oil, water, and gas, Po, respectively.

py t pG is the density of oil, water, and gas, respectively, and IO
, I is the intensity of the incident radiation and the intensity of the transmitted radiation, ■ is the thickness of the measuring part of the pipe (i.e., the radiation transmitting part), P is the density of the measuring part of the pipe 1 μ is the radiation mass absorption coefficient of the measuring part of the pipe . μ0−μ'MyμQ * IOs engineering, μ
The subscripts 1 and 2 are added to distinguish between the first radiation and the second radiation. Then ctol dw+ dQ = D
・・・・μotFo(io+μwtl'wdv
r+μGsp(,dG-ln(Ios/Is) 11s
Pd --■μo! Podo+μmm'WdW+μGz
PGdG-1nCIotAt>-fitPd...-
0μmPd, which gives the eight equations of ■, is constant,
Since 1 can be known in advance, the right side of equation 0 can be determined by measuring the intensity of transmitted radiation, 1. This is designated as C1. That is, In (IO!/I ) -plpd -1nlos-
tt, pd-1rII, -al-1nIs-C1
・"■Similarly In ("'a, ) -/'t pd -in I
at-pt P d-1n I t -a, -1n I
t -02...■.

(μotF□*μw1ρWlμGI P ) and (μ0
*#o*μ91tl'91 v l'Q2PG ) and (
Since the energy of the radiation is selected so that 1, 1, 1) are linearly independent of each other, the formulas ■, ■, and ■ are dO* dW
+ Can be solved for dG do ” No / M・・・・・・・・・・・・■d
W: Nw/M・・・・・・・・・・・・■dG: N,
7M・・・・・・・・・・・・■However, M:μ01μG! pOPG+μW1μ0! ρWPO+μ
PW-μ01μy21'Opw-μ to G1μIHtll
asl'o! PaPo-μW1μ (, Goose 17yl) (,
1'-■NO''C1μ(,tPG+C*μW1pW+D
μG1μmytp, p1y-c, μqtPwOxμG1
1'G-Dμm, μa*pwpG----” @Nw: 0
1μo2Pa + Ct ActρG+”/'01μc
tpopGC+lt to tl't;-Ctl101Po-
D/'Gl,"0tpGpO++++m++・+■NG
:C,μytPW+ctμQt p(,+DμW1μm
tpyP□-c, μozF□-02μWtpwDμm
s/jytP□Pw----@Now, in a given oil well, the quality of oil and the composition of gas do not change suddenly, so μQ
1+μmt Hpo, μQl.

pG2 can be considered constant over a fairly long period of time.

Since the composition of water is constant)μw1. μw2 is constant.

−〇　+ρW is determined once the temperature and pressure are determined.

C,, C, can be known by measuring the intensity of transmitted radiation, and since D is constant, from the above equation, ctol dW +
dG will be found. In other words, μW1 + μw, μQl + μ0゜, μGl + μGt + l'o has t
By giving certain values in advance, determining the water density Py + gas density PQ from the crude oil temperature and pressure values, and determining C, C, from the measurement of the transmitted radiation intensity using the 020 formula, the above formula can be obtained. By do.

By determining d, , dG, the proportions or amounts of oil, water, and gas components in the crude oil can be determined. Since not only the temperature and pressure of crude oil but also the intensity of transmitted gamma rays can be measured online, the amounts of oil, water, and gas components can be determined online.

Specific numerical examples are shown for reference. Am as a radiation source
Select -241. This is 59.5 keV and 26.8k
eV comma ray, 13.9 keV, 17.8 ke
V, 20.8keV (7) Emit X-rays. Therefore, the low energies below 26.8 keV are combined into 2
If we treat 0 keV X-rays and measure 59.5 keV gamma rays using a proportional counter as a pulse-counting radiation detector, the energy resolution is 10%.
Since the intensity of the two types of gamma rays is small, these two energies can be easily separated, and one detector can simultaneously measure the two types of transmitted gamma rays and the X-ray intensity.

Assuming that the oil composition is CnH,... and the gas composition is OH, the respective radiation mass absorption coefficients are as follows.

becomes. Po is 0.8-0.9'all, py is approximately 19/ad.

IQ greatly depends on temperature and pressure, but is usually 00-1j
iy or less. Therefore (μmtJ)0*μWtρ
W, μ to tP') and (μ0!1'Ol pWz#y
r l'Q* pQ) and (1, 1, 1) J, are mutually ini-order a, and it can be seen that doldw, dG is uniquely determined by the intensity of the transmitted radiation and the temperature of the crude oil. If the pressure is known, the value of IPy v P at that temperature and pressure can be determined, so do, dw, and dG can be uniquely determined, and the oil, water, and gas components in the crude oil can be determined.

In the above, a constant value is used for Po regardless of temperature and pressure, but a value corrected by temperature and pressure may also be used.Furthermore, when the range of change in crude oil temperature and pressure is small, ~l pG + It is also possible to consider Po to be constant and ignore the effects of temperature and pressure fluctuations.

Note that over a long period of time, the composition of oil and gas may change, so periodically check P□ + μQl + μQt + pG.
The arithmetic processing device can also be configured so that the value of IμQ1+μQl can be updated. Furthermore, water may not be pure water, and its composition may vary, so μWl,
The arithmetic processing unit may be configured so that the value of μwt * py can also be updated periodically.

Furthermore, in the above example, a single radiation source that emits two types of gamma rays and X-rays is used, and the radiation measurement system from the radiation detector to the main amplifier is shared for the two types of gamma rays and X-rays. For the gamma rays, the first
using a gamma ray source, a first radiation detector, a first preamplifier, and a first main amplifier; Preamplifier, 2nd
The main amplifier may be used as separate radiation measurement systems for the first gamma ray and the second X-ray.

Also, an X-ray tube can be used instead of a gamma ray source.

Further, in the above example, the radiation intensity was measured by the pulse counting method, but the radiation intensity can also be measured as a direct current using a direct current type detector.

Further, in the above embodiment, the signal proportional to the logarithm of the transmitted radiation intensity was created by the arithmetic processing unit (7), but the pulse height discriminator (
6) A logarithmic count rate meter is provided after (6), and this part can be regarded as a radiation measurement system, and this measurement system can be configured to output a signal proportional to the logarithm of the transmitted radiation intensity.

In addition, when fluctuations in crude oil quality are rapid over time, or when it is necessary to automatically correct for certain fluctuations in crude oil quality, this correction is performed by adjusting the photon energy of the radiation to that of the radiation of the first and second radiation measurement systems. This becomes possible by providing a third radiation measurement system having a different photon energy. Consider a case where fluctuations in the sulfur content contained in metal oil are automatically corrected. Various quantities related to the third radiation measurement system are distinguished by adding the subscript 8. Also, if we add S to various quantities related to sulfur, we get fiOsl□dO+fiysPwdy+ll, sll, d = Inc"i'l)-μsρd-μ51pS
The formula WS°°°”°°°°°° ■ is obtained for the third radiation measurement system. However, Ws is the weight/thickness of sulfur along the radiation transmission path (weight per unit area). .

Since do l d, , ctG have been determined approximately from the 000 formula, Ws can be found from the 0 formula. Therefore μ
5IWs and μ52Ws are determined, and these quantities are subtracted from the right sides of formulas ■ and ■, respectively, to create C,,C! As ■
Do, dw, and dG are determined from the formula 0. These values are corrected for fluctuations in sulfur content. Of course, from the right side of formula 00, μ5IWs and μ5kWs, respectively.
do+dw+dQ t W5 can also be obtained simultaneously by solving the equation obtained by subtracting the equation and the Φ equation from the beginning. The photon energy of the first radiation is 20
keV, if the second one is 60 keV, the third
The photon energy of the gamma rays can be selected to be about 100 keV.

It is clear that all the operations described above can be easily realized using a microcomputer.

In addition, if beryllium is used as the tube wall material in the radiation-transmitting part, the attenuation of radiation in this part can be reduced, making it easier to measure the transmitted radiation.
If variations in the L' component are to be automatically corrected at the same time, this can be done by providing a fourth radiation measurement system. However, the photon energy of the radiation is selected to be different between the first to third radiation measurement systems. Various quantities related to the fourth radiation measurement system are distinguished by adding the subscript 4, and quantities related to nickel are distinguished by adding Ni, that is, μmsF□ do
+μWsp1yd1y+μasP to d(,=InC■O
h8. ) 1tsPd-μs异-μHImWN1...@ 工μo4Poao+μw41'w (iw 10μG4F to dq
= In (O″1/I,)-μ+pd'-ItS+
Similarly to Ws/'Ni4wNi4''.O, d has already been obtained using the transmitted radiation intensities of the first and second radiation measurement systems in equations 0 and 0.

Substituting t ciwl ctG and using these two equations, Ws
, WNl can be determined, so from the right sides of equations ■ and ■, respectively μ5tW5 + μNlt WN, 1 μ52W5 10 μNl! WNl t' minus Itamo CI) wo new O
, , C, and calculate dOr dW r dG from the 000 formula, these values are corrected for fluctuations in sulfur and nickel content and become t values.

Of course, μ5IWs and 10μ distance WN-μs from the right sides of equations ■ and ■, respectively! WS+μNl l! It is also possible to obtain dQ + dWdGWss WNI t- at the same time by simultaneously solving the equation for subtracting Nl and the equation (2) for the d equation [phase] from the beginning.

In this way, if new iζ radiation measurement systems are provided for the number of elemental components, such as nitrogen and vanadium, for which fluctuations in crude oil are to be automatically corrected, these corrections can be made.

Now, crude oil may contain sand, and if the amount is small, do and dwdG can be determined as in the above example.However, if the amount is large and fluctuates, A second and third radiation measurement system is installed,
Eight numerical sequences and numerical sequences (1, 1, 1, 1) consisting of absorption coefficients per unit thickness of radiation for each prefecture for water, gas, and sand.
It is clear that if the radiation sources are selected such that and are linearly independent of each other, the oil, water, and gas sand components can be determined by solving the following equations, as in the previous embodiment.

In addition, various quantities related to the third radiation measurement system are distinguished by adding a subscript 8, and various quantities related to sand are distinguished by adding 8D.

d□ + dy + d + d5D: D -
"...@/'0IeO"0+μWtpWdW0μG
IPGdG+μ5o1pspdsD”An(Engineering 01/1
1) −μtl'd = a, −A! nIt・・・・・・
... ■μotPod□+μwtpWdw+μ zP
cdG+μ5DtPsodsD=lncIt/engineering)
−μ, ρd = azirlIt ・・・・・・・・・
Oμospodo + μW3pWdIy+1lcsP
adc + μ5Dapsndsp = In (”5
'I, )-μspd = a@-11n Il
°=・−・・・・−＠Also, automatic correction of the changing elemental components in the crude oil and automatic correction of the temperature and pressure values of the crude oil can be performed in exactly the same way as in the case without sand.

〔Effect of the invention〕

As described above, the component analysis device for a fluid to be measured containing petroleum in the present invention irradiates and transmits either X-rays or gamma rays to the fluid to be measured containing petroleum produced from an oil well. Source 1 At least a radiation detector that detects radiation transmitted through the fluid to be measured, and a signal processing circuit that processes the signal of the radiation detector and outputs a signal based on the intensity of the radiation transmitted through the fluid to be measured. 1st
and a second radiation measurement system, wherein the first and second radiation measurement systems have first and second radiation measurement systems having absorption coefficients of the radiation per unit thickness for oil, water, and gas in the fluid to be measured, respectively. The radiation sources of the first and second radiation measurement systems are selected so that the number sequence 2 and the number sequence (1, 1, 1) are linearly independent of each other, and the fluid to be measured is a signal proportional to the logarithm of the intensity of the transmitted radiation of the first and second radiation measurement systems based on the signal of the signal processing circuit, and the first and second radiation measurement systems. It is equipped with an arithmetic processing device that calculates the mass absorption coefficient of radiation for oil, water, and gas, the density of oil, water, and gas, and the transmission thickness of radiation in the fluid to be measured, so it can be used online. Component analysis of the fluid to be measured can be easily achieved.

Furthermore, by inputting one or more of the temperature and pressure values of the fluid to be measured, the density of one or more of water, gas, and oil can be corrected, and highly accurate measurement can be easily achieved.

Furthermore, if the radiation measurement system is further increased, it is possible to correct measurement errors due to fluctuations Iζ of any one or more of sulfur, window element, nickel, and vanadium element components in the fluid to be measured. A radiation source that irradiates and transmits radiation of either % At least a first signal processing circuit configured to process the radiation and output a signal based on the intensity of the radiation transmitted through the fluid to be measured.
．． The second and third radiation measurement systems are configured to calculate absorption coefficients of these radiations per unit thickness for oil, water, gas, and sand in the fluid to be measured, respectively. The first, second and third number sequences and number sequences (
1, 1, 1, 1) are linearly independent of each other.
The radiation sources of the second and third radiation measurement systems are selected, and the ratios of oil, water, gas, and sand components in the fluid to be measured are determined by the signals of the signal processing circuit as solutions to the above equations 1st based on. A signal proportional to the logarithm of the intensity of the transmitted radiation of the second and third radiation measurement systems, and oil and water of the radiation of the first and second and third radiation measurement systems.

Mass absorption coefficients for gas and sand, oil, and water.

If you are equipped with an arithmetic processing device that calculates the density of gas and sand and the thickness of radiation transmitted through the fluid to be measured using the four arithmetic operations, you can easily perform online component analysis of the fluid to be measured that contains sand.

[Brief explanation of drawings]

The drawing is a block diagram showing an embodiment of the component analysis device for a fluid to be measured containing petroleum according to the present invention. , In the figure, (1) is the radiation source, (2) is the radiation detector, and (5)
(6) is a wave height discriminator, (7) is an arithmetic processing unit, (8) is a display unit, (101) is a pipe, (102)
is crude oil, and (b) is a radiation measurement system.

Claims (14)

[Claims] (1) X
A radiation source that emits and transmits radiation of either rays or gamma rays, a radiation detector that detects the radiation that has passed through the fluid to be measured, and a signal that processes the signal of this radiation detector to detect the radiation that has passed through the fluid to be measured. The first and second radiation measurement systems each include a signal processing circuit that outputs a signal based on the intensity of radiation, and each of the first and second radiation measurement systems detects oil in the fluid to be measured, respectively. , the radiation of the first and second radiation measurement systems so that the first and second number sequences consisting of absorption coefficients per unit thickness for water and gas and the number sequence (1, 1, 1) are linearly independent of each other. The source is selected, and the ratio of oil, water and gas components in the fluid to be measured is calculated as a solution to the following equation, and the intensity of the transmitted radiation of the first and second radiation measurement systems based on the signal of the signal processing circuit is calculated. Four rules: a logarithmically proportional signal, the mass absorption coefficient of the radiation of the first and second radiation measurement systems for oil, water, and gas, the density of oil, water, and gas, and the transmission thickness of radiation in the fluid to be measured. A component analysis device for fluids to be measured, including petroleum, equipped with a calculation processing unit that performs calculations. Equation d_O+d_W+d_G=D μ_O_1ρ_Od_O+μ_W_1ρ_Wd_W+μ
_G_1ρ_Gd_G=a_1-lnI_1μ_O_ρ
_Od_O+μ_W_2ρ_Wd_W+μG_2ρ_G
d_G=a_2-lnI_2 where d_O, d_W, d_G are the sums of the respective thicknesses of oil, water, and gas along the radiation transmission path in the fluid to be measured, and D is the penetration of radiation in the fluid to be measured. Thickness, μ_O_
1, μ_W_1, μ_G_1, μ_O_2, μ_W_2
, μ_G_2 are the mass absorption coefficients of the radiation of the first and second radiation measurement systems for oil, water, and gas, respectively, and ρ_
O, ρ_W, and ρ_G are the densities of oil, water, and gas, respectively, I_1 and I_2 are the intensities of the transmitted radiation of the first and second radiation measurement systems, respectively, and a_1 and a_2 are constants, respectively. (2) The component analysis device for a fluid to be measured containing oil according to claim 1, wherein the signal outputted by the signal processing circuit is a signal proportional to the logarithm of the intensity of radiation transmitted through the fluid to be measured. (3) The signal output by the signal processing circuit is the intensity of the radiation that has passed through the fluid to be measured, and based on this intensity, the arithmetic processing device calculates a signal proportional to the logarithm of the intensity. 2. A component analysis device for a fluid to be measured containing petroleum according to item 1. (4) One pulse-type detector is used as a common radiation detector for at least two or more radiation measurement systems, and the photon energy of each radiation measurement system is Components of a fluid to be measured containing petroleum according to claim 1 using a signal processing device that outputs a signal based on the transmitted radiation intensity of each radiation measurement system by separately counting only the pulses corresponding to the radiation measurement system. Analysis equipment. (5) The petroleum oil according to claim 4, in which Am-241 is used as a radiation source, γ-rays around 60 keV are used in the first radiation measurement system, and X-rays around 20 keV are used in the second radiation measurement system. A component analysis device for a fluid to be measured including: (6) The component analysis device for a fluid to be measured containing petroleum as set forth in claim 1, wherein the fluid piping wall in the passage of radiation in the fluid to be measured is made of beryllium. (7) N or more radiation measurement systems (N = 1, 2, 3, 4) in which the photon energy is different from the photon energy of the radiation in both the first and second radiation measurement systems and also different between each other. The petroleum oil according to claim 1, wherein the oil is provided with a signal output for correcting measurement errors due to fluctuations in N components among sulfur, nitrogen, nickel, and vanadium element components in the fluid to be measured. A component analysis device for a fluid to be measured including: (8) Input one or more of the temperature and pressure values of the fluid to be measured into the arithmetic processing device, and calculate the density of one or more of oil, water, and gas from one or more of the above temperature and pressure values. An apparatus for analyzing the components of a fluid to be measured containing petroleum as set forth in claim 1, wherein the correction is performed by: (9) X
A radiation source that emits and transmits radiation of either rays or gamma rays, a radiation detector that detects the radiation that has passed through the fluid to be measured, and a signal that processes the signal of this radiation detector to detect the radiation that has passed through the fluid to be measured. The first, second and third radiation measurement systems each include a signal processing circuit that outputs a signal based on the intensity of radiation, and each of the first, second and third radiation measurement systems The first, second and third number series and number series (1, 1, 1
, 1) are linearly independent of each other, and the radiation sources of the first, second, and third radiation measurement systems are selected such that oil, water, gas, and The proportion of the sand component is determined by the first method based on the signal from the signal processing circuit.
, signals proportional to the logarithm of the intensity of the transmitted radiation of the second and third radiation measurement systems, mass absorption coefficients of the radiation of the first, second and third radiation measurement systems for oil, water, gas and sand, and oil , the density of water, gas, and sand, and the thickness of radiation transmitted through the fluid to be measured. Equation d_O+d_W+d_G+d_S_D=Dμ_O
_1ρ_Od_O+μ_W_1ρ_Wd_W+μ_G_
1ρ_Gd_G+μ_S_D_1ρ_S_Dd_S_D
=a_1−lηI_1μ_O_2ρ_Od_O+μ_W
_2ρ_Wd_W+μ_G_2ρ_Gd_G+μ_S_
D_2ρ_S_Dd_S_D=a_2−lηI_2μ_
O_3ρ_Od_O+μ_W_3ρ_Wd_W+μ_G
_3ρ_Gd_G+μ_S_D_3ρ_S_Dd_S_
D=a_3-lηI_3 where d_O, d_W, d_G, d_S_D are the sums of the respective thicknesses of oil, water, gas, and sand along the radiation transmission path in the fluid to be measured, and D is the thickness of the fluid to be measured for radiation. Transmission thickness in, μ_O_1, μ_W_1, μ_G_1, μ_S
_D_1, μ_O_2, μ_W_2, μ_G_2, μ_
S_D_2, μ_O_3, μ_W_3, μ_G_3, μ
_S_D_3 is the mass absorption coefficient of the radiation of the first, second, and third radiation measurement systems for oil, water, gas, and sand, respectively; ρ_O, ρ_W, ρ_G, and ρ_S_D are the densities of oil, water, gas, and sand, respectively; I_1; I_2, I_
3 is the intensity of the transmitted radiation of the first, second, and third radiation measurement systems, respectively, and a_1, a_2, and a_3 are each constants. (10) The component analysis device for a fluid to be measured containing oil according to claim 9, wherein the signal outputted by the signal processing circuit is a signal proportional to the logarithm of the intensity of radiation transmitted through the fluid to be measured. (11) The signal outputted by the signal processing circuit is the intensity of radiation that has passed through the fluid to be measured, and based on this intensity, a signal proportional to the logarithm of the intensity is determined by the arithmetic processing device. 9. A component analysis device for a fluid to be measured containing petroleum according to item 9. (12) Claim 9, wherein the fluid piping wall in the passage of radiation in the fluid to be measured is made of beryllium.
A component analysis device for a fluid to be measured containing petroleum as described in Section 1. (13) N or more (N=1, 2, 3,
4) A radiation measurement system is provided, and the signal output thereof is used to correct measurement errors due to fluctuations in N components among sulfur, nitrogen, nickel, and vanadium element components in the fluid to be measured. A component analysis device for a fluid to be measured containing petroleum according to item 9. (14) Input one or more of the temperature and pressure values of the fluid to be measured into the arithmetic processing device, and calculate the density of one or more of oil, water, and gas from one or more of the above temperature and pressure values. An apparatus for analyzing components of a fluid to be measured containing petroleum according to claim 9, wherein the correction is made by: