CN2341149Y - Gas analyser for well logging - Google Patents
Gas analyser for well logging Download PDFInfo
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- CN2341149Y CN2341149Y CN 97204881 CN97204881U CN2341149Y CN 2341149 Y CN2341149 Y CN 2341149Y CN 97204881 CN97204881 CN 97204881 CN 97204881 U CN97204881 U CN 97204881U CN 2341149 Y CN2341149 Y CN 2341149Y
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Abstract
The utility model relates to a gas analyzer for well logging, which is used for petroleum exploration and is composed of two identical analyzers and a controller, wherein each of the analyzers is composed of a thermal conductivity detector and a flame ionization detector, and a double air flow path of a double chromatographic column is used in an air flow path. A multiple-way valve and an electromagnetic valve are controlled by the controller according to a preset work pattern and a preset time sequence to switch the positive and the opposite blowing operation of the chromatographic column in a cyclical way. The utility model has the advantages that the multichannel automatic combination chromatographic function is realized, the analytical cycle is half of that of the similar instrument at home and abroad, the utility model is favorable for finding thin oil air layers, and the phenomenon of missed measure in the process of well logging is avoided. Two functions of hydrocarbon measurement and hydrogen sulfide measurement are realized by the utility model.
Description
The utility model belongs to well logging equipment, the well logging gas instrument that uses in particularly a kind of oil exploration drilling process.
The well logging gas instrument is to utilize gc analysis to measure in the oil and gas exploration composition and content by the rock gas of deviating from the drilling fluid, thereby reaches the purpose of judging that hydrocarbon zone shows.Present well logging gas instrument analytical approach both domestic and external adopts the method for single-column single process, twin columns double fluid journey and the combination of twin columns single process single track more.Analytical cycle is longer like this, and analyzing C5 needs 4-7.5 minute.As:
1, the homemade TDC comprehensive logging instrument of method, analyzer adopt 7.5 minutes methods analyst cycles of single-column single process single track combinatory analysis.
2, the 701 type partition gas chromatographs and the 882 type partition gas chromatographs of Shanghai Petroleum Meters Factory's product adopt the combinatory analysis of single-column single process single track, analytical cycle 4 minutes.
3, going up the sea God opens SK-2 type comprehensive logging instrument that SKSQ-924 type comprehensive logging instrument that scientific and technological development company produces, SSL-931 type chromatography with artificial intelligence well logging instrument that oil Electronic Technology Development Co. in North China produces and information engineering portion of physical prospecting office of China National Petroleum Corporation (CNPC) produce etc. and adopts the methods analyst cycle of twin columns double fluid journey or the combinatory analysis of twin columns single process single track also to need 4 minutes.
Above-mentioned various instrument is because analytical cycle is long.In oil and gas exploration well logging process, sampling number is few, is unfavorable for the discovery of hydrocarbon zone.
Above-mentioned in addition various well logging gas instrument all can not be measured hydrogen sulfide content; The well logging instrument that some can survey sulfuretted hydrogen generally adopts sulfuretted hydrogen air-sensitive probe, and its sensitivity is low, and response speed is slow.This safe construction to drilling process is disadvantageous.
The purpose of this utility model provides a kind of well logging gas instrument, overcomes the long shortcoming of above-mentioned analytical cycle and can detect trace hydrogen sulfide.And has a warm standby function
The purpose of this utility model is achieved in that
A kind of well logging gas instrument, partly form by air path part and controller, it is characterized in that: its air path part is made up of two identical analyzers of structure, and the gas circuit of analyzer is made up of a thermal conductivity detector TCD and two flame ionization detector FID, two hydrocarbon component chromatographic columns, two non-hydrocarbon component chromatographic columns, four quantity tubes, two 17 direction changeover valves, a plurality of solenoid valve and pressure maintaining valves, flow stabilizing valve etc.; Air path part adopts the two gas circuits of two chromatographic columns; The stream division of all gases of gas circuit is as follows: the carrier gas gas circuit: connect four-way 11CN20 by air compressor GS2 mouth through joint 11CN5, four-way 11CN20 outlet is divided into three the tunnel: left road connects needle-valve 11VL17 import, needle-valve 1VL17 outlet connects threeway 11CN21, and two outlets of threeway 11CN21 connect the A end of two flame ionization detector 11D1 and the A end of 11D3 respectively; The right wing of four-way 11CN20 outlet connects needle-valve 11VL18 import, connect threeway 11CN24 from needle-valve 1VL18 outlet, a road of threeway 11C,N24 two outlets connect No. 17 contact of 17 direction changeover valve 11VL2, threeway 11CN24 exports another road connection two-position two-way solenoid valve and is also referred to as blowback air time-delay valve 11VL7, and two-position two-way solenoid valve 11VL7 outlet connects No. 17 contact of 17 direction changeover valve 11VL1; The middle road of four-way 11CN20 outlet connects pressure maintaining valve 11VL11 import; Pressure maintaining valve 11VL11 outlet connects threeway 11CN23, and threeway 11CN23 outlet is divided into two the tunnel: the one tunnel and connects flow stabilizing valve 11VL14, and flow stabilizing valve 11VL14 connects the 11st contact and the 1st contact of 17 direction changeover valve 11VL1; Another road connects flow stabilizing valve 11VL15, and flow stabilizing valve 11VL15 connects the reference cell inlet 1 of thermal conductivity detector TCD, and reference cell outlet 2 is connected to o.11 contact and No. 1 contact of 17 direction changeover valve 11VL2; Hydrogen gas circuit: from the hydrogen mouth of hydrogen generator GS1, connect pressure maintaining valve 11VL10 through joint 11CN3, pressure maintaining valve 11VL10 connects threeway 11CN22 again, threeway 11CN22 outlet is divided into two the tunnel, connect two flow stabilizing valve 11VL12 and 11VL13 respectively, connect the C mouth of two flame ionization detector FID:11D1 and 11D3 from two flow stabilizing valve outlets respectively; The S mouth of 11D1 connects the 15th contact of 17 direction changeover valve 11VL1; No. 7 contact of 17 direction changeover valve 11VL2 is connected chromatographic column 11COL21 with No. 16 contact, No. 5 contact at 17 direction changeover valve 11VL2 is connected chromatographic column 11COL22 with No. 14 contact, leads to the 11CN9 drain by No. 6 contact of 17 direction changeover valve 11VL2; No. 7 contact of 17 direction changeover valve 11VL1 is connected chromatographic column 11COL11 with No. 16 contact, No. 5 contact at 17 direction changeover valve 11VL1 is connected chromatographic column 11COL12 chromatographic column with No. 14 contact, and No. 6 contact of 17 direction changeover valve 11VL1 connects drain 11CN8; No. 15 contact of other 17 direction changeover valve 11VL2 leads to thermal conductivity detector TCD reference cell inlet 3, and thermal conductivity detector TCD reference cell outlet 4 connects carrier gas drain 11CN10 through damper tube 11RG1; No. the 4th, 17 direction changeover valve 11VL1 are connected quantity tube 11QT11 with No. 10 contact, be connected quantity tube 11QT12 with No. 8 contact No. 2, No. the 2nd, 17 direction changeover valve 11VL2 are connected quantity tube 11QT21 with No. 8 contact, are connected quantity tube 11QT22 with No. 10 contact No. 4; No. 9 contact of two 17 direction changeover valves is communicated with in the lump, is communicated with the back and connects threeway 11CN19, and threeway 11CN19 connects two-position three way magnetic valve 11VL9, and two-position three way magnetic valve 11VL9 connects damper tube 11RG2 again, and damper tube 11RG2 connects the 11CN7 drain again; Another leads to solenoid valve 11VL9 and connects quantity tube and vacuumize plug 11CN4; Power gas gas circuit: in order to control the action of two 17 direction changeover valves, power gas passes to threeway 11CN18 from air compressor through joint 11CN6, after being divided into two the tunnel, it is two-position three way magnetic valve 11VL5 that the one road connects the power gas control valve, two-position three way magnetic valve 11VL5 connects threeway 11CN16 again, and threeway 11CN16 connects the 19th contact of 17 direction changeover valve 11VL1 and the 19th contact of 17 direction changeover valve 11VL2 again; It is two-position three way magnetic valve 11VL6 that another road connects the power gas control valve, and two-position three way magnetic valve 11VL6 connects threeway 11CN17 again, and threeway 11CN17 connects the 18th contact of 17 direction changeover valve 11VL1 and the 18th contact of 17 direction changeover valve 11VL2 again; Air basic pattern product gas gas circuit is arranged: decide the sample gas that the volume degasifier is deviate from continuously from drilling fluid, connect zero valve 11VL8 through joint 11CN1, zero valve 11VL8 is connected sample air pump 11PU, connect four-way 11CN13 from air pump 11PU outlet, four-way 11CN13 outlet is divided into three the tunnel, one the tunnel meets gas meter 11M, another road connects needle-valve 11VL16, needle-valve 11VL16 connects the S end of flame ionization detector 11D3, No. 15 contact of the S termination 11VL1 of flame ionization detector 11D1 measured total hydrocarbon content and hydrogen sulfide content; One the tunnel then connects two-position three way magnetic valve 11VL3 again, this valve also connects sample and manually injects import 11CN11, two-position three way magnetic valve 11VL3 also connects four-way 11CN14, and four-way 11CN14 is divided into two the tunnel, receives No. 3 contact of 17 direction changeover valve 11VL1 and No. 3 contact of 11VL2 respectively; No air base sample gas gas circuit: from the no air base sample gas of automatic vacuum mud still device AVMS, be connected to two-position two-way solenoid valve 11VL4 through joint 11CN2, valve outlet port is received four-way 11CN14 thus: 17 direction changeover valves of above gas circuit and solenoid valve are controlled by Programmable Logic Controller PLC, two 17 direction changeover valves, chromatographic column, quantity tube and thermal conductivity detector TCD are contained in the constant temperature oven, the constant temperature oven design temperature is 50 ℃ ± 0.1 ℃, by temperature sensor (platinum resistor) and temperature control plate control, the temperature of constant temperature oven is controlled by temperature control plate, the detection signal of thermal conductivity detector TCD is plate input computing machine after testing, and the detection signal of flame ionization detector FID is also imported computing machine and carried out data processing after amplifying; Programmable Logic Controller PLC is connected with computer interactive, and whole power supply is supplied with by integrated power supply.Increase the side window mouth at flame ionization detector FID, the photomultiplier that is used to detect sulfuretted hydrogen is installed on window.
The utility model has the advantages that:
This well logging gas instrument, its analytic system is made up of two identical analyzer and controllers of structure.Two analyzers and controller have been realized the function of multiple tracks Automatic Combined stratographic analysis, are characterized in:
1, adopt the mode of multiple tracks combinatory analysis, shorten analytical cycle, thereby the sampling density in the increasing gas detection logging process helps finding fast and estimating hydrocarbon zone, particularly more favourable to the discovery and the evaluation of thin hydrocarbon zone.
2, two analyzers Hot Spare each other, when an analyzer has fault, another then can continue well logging.This is two of the characteristic that do not possess of any domestic and international instrument.
3, this instrument has been realized two kinds of measuring abilities on a detecting device, and promptly flame ion-flame luminosity detects, and has both surveyed total hydrocarbon; Survey H2S again, the former surveys for geological effect, and the latter establishes for the safety at drilling engineering scene, so that monitor H2S in drilling process, guarantees the safety at phase of drilling engineering scene.
The analytical cycle of this well logging gas instrument is about both at home and abroad half with quasi-instrument, and can significantly reduce in well logging because of the phenomenon of instrument chance failure test leakage data, has realized that also two kinds of measuring abilities promptly survey hydrocarbon and survey the sulfuretted hydrogen function.
Below in conjunction with description of drawings embodiment:
Fig. 1 is a well logging gas instrument inner structure synoptic diagram
Fig. 2 is a well logging gas instrument panel synoptic diagram
Fig. 3 is a well logging gas instrument circuit control general diagram
Fig. 4 is a well logging gas instrument stream schematic diagram
Fig. 5 is a well logging gas instrument electrical schematic diagram
Among Fig. 1: flame ionization detector FID3 pressure maintaining valve 4 pressure maintaining valves 5 needle-valves 6 circuit sockets 7 pipe joints 8 amplifier circuit boards 9 sample air pump 10PLC Programmable Logic Controllers 11 circuit sockets 12 integrated power supplies 13 integrated power supplies 14 integrated power supplies 15 casings 16 terminal plates 17 thermal conductivity detector TCD18 platinum resistors 19 magnetic valve groups 20 sample injection mouths 210 seven direction changeover valves 220 seven direction changeover valves 23 chromatographic columns 24 total hydrocarbons in the flame ionization detector FID2 hydrocarbon component road of 1 whole hydrocarbon way are among zero valve 25 insulating boxs 26 temperature control circuit boards 27 quantity tube Fig. 2: 31 pairs of zero valve 32 sample injection valves 33 functional indicator lights 34 constant temperature displays 350 seven direction changeover valve position displaying lamps 36 total power switch 37 ignition switches 38 heated at constant temperature alarm lamps 39 sample pump auto-man switch 40 fault display lamps 410 seven direction changeover valves 420 seven direction changeover valves
A kind of well logging gas instrument, it is characterized in that: be made up of two identical analyzer and controllers of structure, each analyzer is made up of a thermal conductivity detector (TCD) and two flame ionization detectors (FID), two hydrocarbon component chromatographic columns, two non-hydrocarbon component chromatographic columns, four quantity tubes, 17 direction changeover valves, solenoid valve and voltage stabilization and current stabilization valves etc.; The process of gas path of analyzer adopts the two process of gas path of two chromatographic columns; Controller is made up of Programmable Logic Controller (PLC), temperature control plate, integrated power supply; By the predetermined pattern and the positive blowback work of sequential control multiport valve and solenoid cycles switching chromatograph post, realize the analysis of two analyzer Automatic Combined by controller.
On the flame ionization detector FID that measures total hydrocarbon, increase the side window mouth, photomultiplier is installed on window, be used for measuring sulfuretted hydrogen.
Form novel flame ion-flame photometric detector (FPD) (FID-FPD), this detecting device can be on the analyzer of gas instrument itself content of total hydrocarbon content and low trace hydrogen sulfide to 1PPM in the working sample gas simultaneously.
1, the utility model is a kind of of partition gas chromatograph, and its theory diagram is as follows:
92 years utility model projects (" gas instrument of hydrocarbon content in a kind of direct measurement drilling fluid ") of the principle of work of analyzer and the Xu Youxin of well logging company of Dagang Petroleum Administration patent No. 92230231.6) basic identical, but in this Patent project and reckon without the multiple tracks combinatory analysis to shorten analytical cycle, do not consider the measurement of sulfuretted hydrogen yet, therefore, the utility model well logging gas instrument adopts two identical analyzers of structure to be controlled by a controller, the chromatogram air-channel system of analyzer adopts twin columns double fluid journey, and controller is controlled the positive blowback work of 17 logical valves by certain sequential circulation switching chromatograph post.
The setting analytical cycle is as follows:
Short period: analyze the C1-C4 hydrocarbon component, the time: 2 minutes;
Long period: analyze the C1-C5 hydrocarbon component, the time: 4 minutes; Carry out the multiple tracks combination with two analyzers, make its work phase difference of half phase place, so the analytical cycle after the combination is:
Short period: 1 minute
Long period: helped finding and estimating hydrocarbon zone owing to shortened analytical cycle and in the mud logging process, strengthen sampling density in 2 minutes.
This well logging gas instrument front panel sees that accompanying drawing 2 and inner structure see accompanying drawing 1.
2, can assemble flame ion--flame photometric detector (FPD) on the utility model well logging gas instrument, this detecting device is installed on the whole hydrocarbon way, can measure simultaneously less than the hydrogen sulfide content of 1PPM and the content of hydrocarbon component or total hydrocarbon, can show the existence of sulfuretted hydrogen in advance, report to the police in advance, help the safety of oil and gas exploration situ of drilling well.
The gas circuit principle flow process as shown in Figure 4, the stream division of all gases is as follows:
(1) carrier gas: (identical with other gas instruments, the employed carrier gas of the utility model also is an air.From the pressurized air that does not have oil, noiselessness air compressor GS2, through joint 11CN5, four-way 11CN20 to pressure maintaining valve 11VL11, then since then valve outlet port to threeway 11CN23, be divided into two the tunnel: the one road to flow stabilizing valve 11VL14, the 11st contact to 17 direction changeover valve 11VL1, behind another Lu Zejing flow stabilizing valve 11VL15,, then be connected to the 11st and No. 1 contact of another 17 direction changeover valve 11VL2 from reference cell 2 outlets to thermal conductivity detector (TCD) reference cell 1 end.
(2) hydrogen: the employed hydrogen of instrument, it is the combustion gas of flame ionization detector (FID), hydrogen from hydrogen generator GS1, through joint 11CN3 to pressure maintaining valve 11VL10, then be divided into two the tunnel through threeway 11CN22 again, respectively to flow stabilizing valve 11VL13 and 11VL12, from steady valve outlet port respectively to the C end of two flame ionization detector (FID) 11D1 and 11D3.
(3) combustion air: be the combustion-supporting air of hydrogen flame of flame ionization detector (FID), also from no oily noiselessness air compressor GS2, to needle-valve 11VL17, valve outlet port divides the A that is clipped to two flame ionization detector 11D1 and 11D3 end to threeway 11CN21 since then through joint 11CN5, four-way 11CN20.
No. 7 contact of 17 direction changeover valve 11VL2 is connected chromatographic column 11COL21 with No. 16 contact, No. 5 contact at 17 direction changeover valve 11VL2 is connected chromatographic column 11COL22 with No. 14 contact, leads to the 11CN9 drain by No. 6 contact of 17 direction changeover valve 11VL2; No. 7 contact of 17 direction changeover valve 11VL1 is connected chromatographic column 11COL11 with the 1 No. 6 contact, No. 5 contact at 17 direction changeover valve 11VL1 is connected chromatographic column 11COL12 chromatographic column with No. 14 contact, and No. 6 contact of 17 direction changeover valve 11VL1 connects drain 11CN8; No. 15 contact of other 17 direction changeover valve 11VL2 leads to thermal conductivity detector TCD reference cell inlet 3, and thermal conductivity detector TCD reference cell outlet 4 connects carrier gas drain 11CN10 through damper tube 11RG1; No. the 4th, 17 direction changeover valve 11VL1 are connected quantity tube 11QT11 with No. 10 contact, be connected quantity tube 11QT12 with No. 8 contact No. 2, No. the 2nd, 17 direction changeover valve 11VL2 are connected quantity tube 11QT21 with No. 8 contact, are connected quantity tube 11QT22 with No. 10 contact No. 4; No. 9 contact of two 17 direction changeover valves is communicated with in the lump, is communicated with the back and connects threeway 11CN19, and threeway 11CN19 connects two-position three way magnetic valve 11VL9, and two-position three way magnetic valve 11VL9 connects damper tube 11RG2 again, and damper tube 11RG2 connects the 11CN7 drain again; Another leads to solenoid valve 11VL9 and connects quantity tube and vacuumize plug 11CN4;
(4) blowback air: when an analytical cycle finishes, the action of 17 direction changeover valves, quantity tube 11QT12, sample gas among the 11QT21 (or 11QT11 and 11QT22) is brought into another chromatographic column by carrier gas, begin the analysis in following-individual cycle, at this moment, " heavy constituent " residual in the chromatographic column of former work answer blowback clean, this blowback air too from no oily noiselessness air compressor GS2 through joint 11CN5 and four-way 11CN20 to needle-valve 11VL18, needle-valve is exported to threeway 11CN24 thus, after being divided into two the tunnel, one tunnel No. 17 contact that is connected to the 17 direction changeover valve 11VL2 in nonhydrocarbon component road wherein is in order to the chromatographic column 11COL21 (or 11COL22) in blowback nonhydrocarbon component road.The ten No. seven contact of the 17 direction changeover valve 11VL1 in hydrocarbon component road received through two-position two-way solenoid valve (blowback time-delay valve) 11VL7 in another road, and the chromatographic column 11COL11 (or 11COL12) in blowback hydrocarbon component road is at last from 11CN8 and 11CN9 emptying.
(5) power gas: in order to control the action of 17 direction changeover valves, power gas from no oily noiselessness air compressor GS2 (or another air compressor) to threeway 11CN18, after being divided into two the tunnel, to power gas control valve (two-position three way magnetic valve) 11VL5 and 11VL6, control the change action of 17 direction changeover valve 11VL1 and 11VL2 respectively.
(6) air basic pattern product gas is arranged: decide the sample gas that the volume degasifier is deviate from continuously from drilling fluid, reach zero valve 11VL8 by the continuous suction analyzer of sample air pump 11PU through joint 11CN1, be exported to four-way 11CN13 from 11PU and be divided into two the tunnel, wherein one the tunnel through needle-valve 11VL16 to flame ionization detector 11D3, measure total hydrocarbon content, behind another Lu Zejing two-position three way magnetic valve (this valve control sample gas pumping or manual sample injection) 11VL3 and the four-way 11CN14, be further divided into two the tunnel, receive No. 3 contact of 17 direction changeover valve 11VL1 and 11VL2 respectively, be full of quantity tube 11QT12 and 11QT21 (or 11QT11 and 11QT22) through 17 direction changeover valves and flow out to threeway 11CN19 by No. 9 contact of 17 direction changeover valves again and be combined into one the tunnel, after two-position three way magnetic valve 11VL9 by 11CN7 emptying.
(7) no air base sample gas: from the no air base sample gas of automatic vacuum mud still device (AVMS), be connected to two-position two-way solenoid valve 11VL4 through joint 11CN2, valve outlet port is received four-way 11CN14 thus, when operation A VMS, 11VL3 closes and 11VL4 opens, no air basic pattern product just can enter analyzer, behind 17 direction changeover valves, are full of quantity tube 11QT12 and 11QT21 (or 11VL11 and 11QT22) emptying then.
The course of work of instrument:
(1) hydrocarbon component road: as shown in the figure, receive carrier gas and No. 10 contact UNICOM of this valve o.11 contact and enter quantity tube 11QT11 when 17 direction changeover valve 11VL1 are in the outside position of valve rod (⊙ sees the note of figure), with sample gas wherein, enter chromatographic column 11COL12 through the 4th, No. 5 contact, hydrocarbon gas after this post separates, flow out by the chromatographic column outlet of receiving No. 14 contact of 17 direction changeover valves successively, through No. 15 contact to flame ionization detector 11D1, produce the detection signal of each component, through data acquisition system (DAS), by its content of Microcomputer Calculation.
To the n-pentane outflow, sequential by appointment is connected by the power gas of two-position three way magnetic valve 11VL5 or 11VL6 control, make 17 direction changeover valves change the note that figure is seen in the inside position of valve rod () into by original position (⊙),) carrier gas this moment enters quantity tube 11QT12 by No. 1 contact of 17 direction changeover valves through No. 2 contacts, with sample gas wherein, through 8, No. 7 contact enters chromatographic column 11COL11, hydrocarbon gas is after this post separates, flow out by the column outlet of receiving No. 16 contact of 17 direction changeover valves successively, still through No. 15 contact to flame ionization detector 11D1, at this moment, chromatographic column 11COL11 carries out blowback (blowback air enters the 13rd point in its body by No. 17 contact of 17 direction changeover valves, through No. 14 contact blowback post 11COL11) blowback air emptying after No. 6 contact of 17 direction changeover valves flows out.
The analysis time of C1-C5 hydro carbons, as be decided to be 4 minutes, the switching cycle of 17 direction changeover valves also is decided to be 4 minutes, meaning be sampling analysis in per 4 minutes once, as being " long period " with this mode-definition, if when then only analyzing the C1-C4 hydro carbons, be less than 2 minutes analysis time, the switching cycle of 17 direction changeover valves can change 2 minutes into, be sampling analysis in per 2 minutes once, this pattern may be defined as " short period ", and selecting for use of long and short period can require by the user selected according to well logging.
(2) nonhydrocarbon component road: as shown in the figure, when 17 direction changeover valve 11VL2 are in the outside position of valve rod (⊙ sees the note of figure), the carrier gas that thermal conductivity detector (TCD) reference cell of having flowed through is received 17 direction changeover valve o.11 contacts, with No. 10 contact UNICOM, enter quantity tube 11QT22, with wherein sample gas through the 4th, No. 5 contact enters chromatographic column 11COL22, nonhydrocarbon component hydrogen, component such as helium and carbon dioxide is after chromatographic column is separated, flow out by the chromatographic column outlet of receiving the 1 No. 4 contact of 17 direction changeover valves successively, enter the operating room of thermal conductivity detector (TCD) 11D2 through No. 15 contact, at last by the 11CN10 emptying, the signal that TCD produced, through data acquisition system (DAS), by the content of Microcomputer Calculation each component.
The switching cycle of this road 17 direction changeover valve 11VL2,17 direction changeover valve 11VL1 are synchronous with hydrocarbon component road, equally can executive chairman or short-period analytical model, the switching of pillar is all identical with hydrocarbon component road with blowback.
(3) total hydrocarbon (hydro carbons total amount in the sample gas) road: decide the sample gas that the volume degasifier is deviate from continuously from drilling fluid, by sample air pump 11PU through joint 11CN1, to the zero continuous suction instrument of valve 11VL8, enter flame ionization detector (FID) 11D3 from pump discharge continuously through four-way 11CN13 and needle-valve 11VL16, when containing hydrocarbon component in the sample gas that degasifier is deviate from, this detecting device just can produce signal, display abnormality.Measured by flame photometric detector (FPD) (FPD) when containing sulfuretted hydrogen in the sample gas simultaneously, when its excess, can report to the police.
(4) analyzing and testing of no air base sample gas:
Online so that when analyzing no air base sample gas when instrument and automatic vacuum mud still device (AVMS), solenoid valve 11VL9 closes quantity tube and ends emptying; Solenoid valve 11VL3 also closes simultaneously, at this moment, decides the sample gas that the volume degasifier deviates from continuously from drilling fluid and no longer enters chromatographic system, and only deliver to the monitoring that flame ionization detector 11D3 carries out total hydrocarbon and sulfuretted hydrogen.When closing with 11VL3 and 11VL9, solenoid valve 11VL4 opens, whole sample air-channel systems of chromatographic system are by the AVMS vacuum pumping, then, when AVMS begins to supply gas, quantity tube sucks the sample gas that AVMS deviates from, and after 17 logical valves switch, just can analyze hydrocarbon component and nonhydrocarbon component in this no air base sample gas.
Because the working time of AVMS is 4 minutes, so when instrument was online with it, chromatographic system was all carried out macrocyclic analytical model.
(5) duty of solenoid valve and sequential:
According to the well logging needs, promptly select long or short period analytical model for use; And do not have air base sample gas and the different of air basic pattern product gas are arranged, artificial duty and the sequential of setting each solenoid valve, this work is undertaken by Programmable Logic Controller PLC (CPU41 type), and sequential is as follows: valve state execution work switching time
The normally closed A-P of long period short period 11VL3 is logical, opening 11VL5 when analysis has the normally closed analysis of air basic pattern product gas 11VL4 not have air base sample gas opens, closing 4 minutes 2 minutes 11VL6 of two 17 direction changeover valves connection power gas of switching opens, closing 4 minutes 2 minutes 11VL7 of two 17 direction changeover valves connection power gas of switching opens, close FID blowback air time-delay valve see the note of figure (seeing the note of figure) 11VL8 often open manually pull out the zeroing 11VL9 often open the emptying of quantity tube sample gas, when operation A VMS, close.
(6) two 17 direction changeover valves in hydrocarbon component road and nonhydrocarbon component road are housed in the constant temperature oven, analyze on the corresponding contact that chromatographic column that hydrocarbon component and nonhydrocarbon component use and sampling quantity tube separately all be connected on 17 direction changeover valves (seeing shown in the figure), thermal conductivity detector (TCD) 11D2 also is positioned at constant temperature oven, the constant temperature oven design temperature is 50 ℃ ± 0.1 ℃, by temperature sensor (platinum resistor) and temperature control plate control.
(7) manual sample injection: analytic system is furnished with two kinds of input modes, i.e. pumping sample introduction and manual sample injection.Aforesaid each process is the pumping input mode, and under specific situation, the user also can adopt manual sample injection.At this moment, solenoid valve 11VL3 opens, and the sample in 2 connections of b-p (seeing figure) syringe can be pushed into quantity tube 11QT11, and 11QT12 is among 11QT21, the 11QT22.
Claims (2)
1, a kind of well logging gas instrument, partly form by air path part and controller, it is characterized in that: its air path part is made up of two identical analyzers of structure, and the gas circuit of analyzer is made up of a thermal conductivity detector TCD and two flame ionization detector FID, two hydrocarbon component chromatographic columns, two non-hydrocarbon component chromatographic columns, four quantity tubes, two 17 direction changeover valves, a plurality of solenoid valve and pressure maintaining valves, flow stabilizing valve etc.; Air path part adopts the two gas circuits of two chromatographic columns; The stream division of all gases of gas circuit is as follows: the carrier gas gas circuit: connect four-way 11CN20 by air compressor GS2 mouth through joint 11CN5, four-way 11CN20 outlet is divided into three the tunnel: left road connects needle-valve 11VL17 import, needle-valve 1VL17 outlet connects threeway 11CN21, and two outlets of threeway 11CN21 connect the A end of two flame ionization detector 11D1 and the A end of 11D3 respectively; The right wing of four-way 11CN20 outlet connects needle-valve 11VL18 import, connect threeway 11CN24 from needle-valve 1VL18 outlet, a road of threeway 11C,N24 two outlets connect No. 17 contact of 17 direction changeover valve 11VL2, threeway 11CN24 exports another road connection two-position two-way solenoid valve and is also referred to as blowback air time-delay valve 11VL7, and two-position two-way solenoid valve 11VL7 outlet connects the 1 No. 7 contact of 17 direction changeover valve 11VL1; The middle road of four-way 11CN20 outlet connects pressure maintaining valve 11VL11 import; Pressure maintaining valve 11VL11 outlet connects threeway 11CN23, and threeway 11CN23 outlet is divided into two the tunnel: the one tunnel and connects flow stabilizing valve 11VL14, and flow stabilizing valve 11VL14 connects the 11st contact and the 1st contact of 17 direction changeover valve 11VL1; Another road connects flow stabilizing valve 11VL15, and flow stabilizing valve 11VL15 connects the reference cell inlet 1 of thermal conductivity detector TCD, and reference cell outlet 2 is connected to o.11 contact and No. 1 contact of 17 direction changeover valve 11VL2; Hydrogen gas circuit: from the hydrogen mouth of hydrogen generator GS1, connect pressure maintaining valve 11VL10 through joint 11CN3, pressure maintaining valve 11VL10 connects threeway 11CN22 again, threeway 11CN22 outlet is divided into two the tunnel, connect two flow stabilizing valve 11VL12 and 11VL13 respectively, connect the C mouth of two flame ionization detector FID:11D1 and 11D3 from two flow stabilizing valve outlets respectively; The S mouth of 11D1 connects the 15th contact of 17 direction changeover valve 11VL1; No. 7 contact of 17 direction changeover valve 11VL2 is connected chromatographic column 11COL21 with No. 16 contact, No. 5 contact at 17 direction changeover valve 11VL2 is connected chromatographic column 11COL22 with No. 14 contact, leads to the 11CN9 drain by No. 6 contact of 17 direction changeover valve 11VL2; No. 7 contact of 17 direction changeover valve 11VL1 is connected chromatographic column 11COL11 with No. 16 contact, No. 5 contact at 17 direction changeover valve 11VL1 is connected chromatographic column 11COL12 chromatographic column with No. 14 contact, and No. 6 contact of 17 direction changeover valve 11VL1 connects drain 11CN8; No. 15 contact of other 17 direction changeover valve 11VL2 leads to thermal conductivity detector TCD reference cell inlet 3, and thermal conductivity detector TCD reference cell outlet 4 connects carrier gas drain 11CN10 through damper tube 11RG1; No. the 4th, 17 direction changeover valve 11VL1 are connected quantity tube 11QT11 with No. 10 contact, be connected quantity tube 11QT12 with No. 8 contact No. 2, No. the 2nd, 17 direction changeover valve 11VL2 are connected quantity tube 11QT21 with No. 8 contact, are connected quantity tube 11QT22 with No. 10 contact No. 4; No. 9 contact of two 17 direction changeover valves is communicated with in the lump, is communicated with the back and connects threeway 11CN19, and threeway 11CN19 connects two-position three way magnetic valve 11VL9, and two-position three way magnetic valve 11VL9 connects damper tube 11RG2 again, and damper tube 11RG2 connects the 11CN7 drain again; Another leads to solenoid valve 11VL9 and connects quantity tube and vacuumize plug 11CN4; Power gas gas circuit: in order to control the action of two 17 direction changeover valves, power gas passes to threeway 11CN18 from air compressor through joint 11CN6, after being divided into two the tunnel, it is two-position three way magnetic valve 11VL5 that the one road connects the power gas control valve, two-position three way magnetic valve 11VL5 connects threeway 11CN16 again, and threeway 11CN16 connects the 19th contact of 17 direction changeover valve 11VL1 and the 19th contact of 17 direction changeover valve 11VL2 again; It is two-position three way magnetic valve 11VL6 that another road connects the power gas control valve, and two-position three way magnetic valve 11VL6 connects threeway 11CN17 again, and threeway 11N17 connects the 18th contact of 17 direction changeover valve 11VL1 and the 18th contact of 17 direction changeover valve 11VL2 again; Air basic pattern product gas gas circuit is arranged: decide the sample gas that the volume degasifier is deviate from continuously from drilling fluid, connect zero valve 11VL8 through joint 11CN1, zero valve 11VL8 is connected sample air pump 11PU, connect four-way 11CN13 from air pump 11PU outlet, four-way 11CN13 outlet is divided into three the tunnel, one the tunnel meets gas meter 11M, another road connects needle-valve 11VL16, needle-valve 11VL16 connects the S end of flame ionization detector 11D3, No. 15 contact of the S termination 11VL1 of flame ionization detector 11D1 measured total hydrocarbon content and hydrogen sulfide content; One the tunnel then connects two-position three way magnetic valve 11VL3 again, this valve also connects sample and manually injects import 11CN11, two-position three way magnetic valve 11VL3 also connects four-way 11CN14, and four-way 11CN14 is divided into two the tunnel, receives No. 3 contact of 17 direction changeover valve 11VL1 and No. 3 contact of 11VL2 respectively; No air base sample gas gas circuit: the no air base sample gas from automatic vacuum mud still device AVMS, be connected to two-position two-way solenoid valve 11VL4 through joint 11CN2, valve outlet port is received four-way 11CN14 thus; 17 direction changeover valves of above gas circuit and solenoid valve are controlled by Programmable Logic Controller PLC, two 17 direction changeover valves, chromatographic column, quantity tube and thermal conductivity detector TCD are contained in the constant temperature oven, the constant temperature oven design temperature is 50 ℃ ± 0.1 ℃, by temperature sensor (platinum resistor) and temperature control plate control, the temperature of constant temperature oven is controlled by temperature control plate, the detection signal of thermal conductivity detector TCD is plate input computing machine after testing, and the detection signal of flame ionization detector FID is also imported computing machine and carried out data processing after amplifying; Programmable Logic Controller PLC is connected with computer interactive, and whole power supply is supplied with by integrated power supply.
2, well logging gas instrument according to claim 1 is characterized in that: increase the side window mouth at flame ionization detector FID, the photomultiplier that is used to detect sulfuretted hydrogen is installed on window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97204881 CN2341149Y (en) | 1997-04-25 | 1997-04-25 | Gas analyser for well logging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97204881 CN2341149Y (en) | 1997-04-25 | 1997-04-25 | Gas analyser for well logging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2341149Y true CN2341149Y (en) | 1999-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97204881 Expired - Fee Related CN2341149Y (en) | 1997-04-25 | 1997-04-25 | Gas analyser for well logging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2341149Y (en) |
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| CN100456034C (en) * | 2006-09-27 | 2009-01-28 | 朱先德 | Constant sulphur appliance with airflow stabilizing device |
| CN101126749B (en) * | 2007-09-26 | 2010-07-21 | 大庆石油管理局 | Quantitative analysis method for all form sulfur component of light carbon and its fractional distillation product |
| CN101906964A (en) * | 2010-07-30 | 2010-12-08 | 沙勇 | Logging detection system for detecting light hydrocarbon component content of drilling fluid |
| CN101936964A (en) * | 2010-07-29 | 2011-01-05 | 中国科学院兰州地质研究所 | GC-IRMS direct measurement method for hydrogen sulfide sulfur isotope in mixed gas |
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| CN102141556A (en) * | 2010-12-30 | 2011-08-03 | 西南化工研究设计院 | Analysis method for determination of total sulphur in gas through gas chromatography and back-blowing |
| CN101718763B (en) * | 2009-12-15 | 2012-06-06 | 中国石油集团川庆钻探工程有限公司长庆录井公司 | System for controlling gas circuit of chromatographic sample |
| CN101408102B (en) * | 2008-07-23 | 2012-10-10 | 天津陆海石油设备系统工程有限责任公司 | Total hydrocarbon intelligent logging system |
| CN102782252A (en) * | 2010-01-13 | 2012-11-14 | 圣托斯有限公司 | Measuring gas content of unconventional reservoir rocks |
| CN103958831A (en) * | 2011-12-13 | 2014-07-30 | 哈里伯顿能源服务公司 | Optical computation fluid analysis system and method |
| CN104713975A (en) * | 2015-02-09 | 2015-06-17 | 沈阳石蜡化工有限公司 | Method for simultaneously detecting contents of hydrocarbon impurities and nitrogen impurity in hydrogen |
| CN107843681A (en) * | 2017-12-19 | 2018-03-27 | 上海神开石油科技有限公司 | A kind of explosion-proof chromatograph of well head |
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- 1997-04-25 CN CN 97204881 patent/CN2341149Y/en not_active Expired - Fee Related
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| CN101126749B (en) * | 2007-09-26 | 2010-07-21 | 大庆石油管理局 | Quantitative analysis method for all form sulfur component of light carbon and its fractional distillation product |
| CN101408102B (en) * | 2008-07-23 | 2012-10-10 | 天津陆海石油设备系统工程有限责任公司 | Total hydrocarbon intelligent logging system |
| CN101718763B (en) * | 2009-12-15 | 2012-06-06 | 中国石油集团川庆钻探工程有限公司长庆录井公司 | System for controlling gas circuit of chromatographic sample |
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| CN102782252A (en) * | 2010-01-13 | 2012-11-14 | 圣托斯有限公司 | Measuring gas content of unconventional reservoir rocks |
| CN101936964A (en) * | 2010-07-29 | 2011-01-05 | 中国科学院兰州地质研究所 | GC-IRMS direct measurement method for hydrogen sulfide sulfur isotope in mixed gas |
| CN101906964A (en) * | 2010-07-30 | 2010-12-08 | 沙勇 | Logging detection system for detecting light hydrocarbon component content of drilling fluid |
| CN102141556A (en) * | 2010-12-30 | 2011-08-03 | 西南化工研究设计院 | Analysis method for determination of total sulphur in gas through gas chromatography and back-blowing |
| CN102022115A (en) * | 2010-12-30 | 2011-04-20 | 中国电子科技集团公司第二十二研究所 | Quantitative needle tube sample injection system and method |
| CN102022115B (en) * | 2010-12-30 | 2013-03-13 | 中国电子科技集团公司第二十二研究所 | Quantitative needle tube sample injection system and method |
| CN103958831A (en) * | 2011-12-13 | 2014-07-30 | 哈里伯顿能源服务公司 | Optical computation fluid analysis system and method |
| CN104713975A (en) * | 2015-02-09 | 2015-06-17 | 沈阳石蜡化工有限公司 | Method for simultaneously detecting contents of hydrocarbon impurities and nitrogen impurity in hydrogen |
| CN104713975B (en) * | 2015-02-09 | 2017-05-03 | 沈阳石蜡化工有限公司 | Method for simultaneously detecting contents of hydrocarbon impurities and nitrogen impurity in hydrogen |
| CN107843681A (en) * | 2017-12-19 | 2018-03-27 | 上海神开石油科技有限公司 | A kind of explosion-proof chromatograph of well head |
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