CN108708690A - A kind of oil well hydrogen sulfide device that detection and intelligent dosing are handled automatically - Google Patents
A kind of oil well hydrogen sulfide device that detection and intelligent dosing are handled automatically Download PDFInfo
- Publication number
- CN108708690A CN108708690A CN201810483262.6A CN201810483262A CN108708690A CN 108708690 A CN108708690 A CN 108708690A CN 201810483262 A CN201810483262 A CN 201810483262A CN 108708690 A CN108708690 A CN 108708690A
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- China
- Prior art keywords
- gas
- hydrogen sulfide
- detection
- oil well
- dosing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
Abstract
The invention discloses a kind of oil well hydrogen sulfide devices that detection and intelligent dosing are handled automatically, the device is made of detection unit, dosing unit and PLC controller, detection unit and dosing unit are separately mounted on the set sluice valve at oil well casing both ends, and PLC controller is connected with detection unit and dosing unit respectively by wired or wireless mode.The present invention uses the technique of eddy flow and agitating and heating two-stage gas-liquid separation, can effectively separate the hydrogen sulfide gas dissolved in liquid, and to which the accuracy of hydrogen sulfide gas detection be significantly increased, the detection error of hydrogen sulfide reduces 20~35%；Automatically and accurately adjusting for desulfurizing agent dosage is realized, oil well hydrogen sulfide gas content reaches 0.5mg/m after processing3Hereinafter, fully meeting oil well hydrogen sulfide safety in production concentration requirement, treatment effect is good.Therefore, present invention is generally applicable in oil well hydrogen sulfide treatment.
Description
Technical field
The present invention relates to a kind of detection of oil well hydrogen sulfide during oil extraction and agent-feeding treatment device, more particularly to one
The kind oil well hydrogen sulfide device that detection and intelligent dosing are handled automatically.
Background technology
The oil-field thick-oils such as triumph, the Liaohe River, Central Plains, Xinjiang are resourceful, mainly in the form of steam soak or steam drive into
Row exploitation, in the process of development, the hydrothermal cracking of Sulfur Compounds from Crude Oils generates a large amount of hydrogen sulfide.Current each oil field pair
The processing of oil well hydrogen sulfide can not ensure that oil recovery sum aggregate is defeated along journey human life's safety, urgently based on multi-purpose station end-o f-pipe -control
It needs, in the processing of well head progress hydrogen sulfide, to realize watershed management.
In the recent period, the well head processing of oil well hydrogen sulfide has been carried out in each oil field, for the hydrogen sulfide of normal producing well, is thrown with casing
Add based on desulfurizing agent processing.The dosing method of accuracy and desulfurizing agent that hydrogen sulfide measures is to influence oil well hydrogen sulfide treatment benefit
Key.
The test of oil well hydrogen sulfide mainly has colorimetric tube method, chromatography and sensor method at present.Colorimetric tube method is in oil well
Direct emptying sampling, is tested using colorimetric cylinder on the petroleum pipeline of well head, and the length according to colorimetric cylinder colour developing determines gas phase
Middle hydrogen sulfide content.Chromatography is that the gas of taking-up is poured sampling bag, is returned behind laboratory using gas-chromatography to sulphur in gas
Change hydrogen to be detected, hydrogen sulfide content is obtained according to the calculated by peak area of chromatographic isolation.Sensor method is to utilize vulcanization HydroNit sensor, according to
Hydrogen sulfide in gas phase content is detected according to the principle of electrochemistry.All there are two aspects in three of the above method：(1) there are one
Fixed security risk.Three kinds of methods are required for manually being deflated, due to oil well produced liquid be oil-containing air water it is with pressure (0.5~
1.5MPa) heterogeneous system, when being directly vented, it may appear that one gas and one liquid occurs in the alternate discrete state of gas-liquid
The case where, since hydrogen sulfide is poisonous gas, there are some potential safety problemss in sampling process；(2) result measured
Less than normal 20~40%.Three kinds of current test methods are only the measurement carried out to the hydrogen sulfide content in wherein gas phase, due to sulphur
Change hydrogen has higher solubility in the liquid phase, and the solubility of hydrogen sulfide therefore simple is relied on up to 2.6L in 1L water under normal pressure
Gas-phase presulfiding hydrogen content carries out the design of dosage, and causing the deficiency of dosage, (20~40%) on the low side eventually lead to vulcanization
Hydrogen removal efficiency is relatively low, and regulation effect is poor.
According to the difference in dosing period, adding mainly for desulfurizing agent has interval to add and continuously add two ways at present.
Two kinds of dosing methods all there is a problem of certain：(1) it intermittently adds.Emptying casing gas is first had to, is then used manually or mechanically
Dosing.Main problem existing for which is, there are serious danger to ambient enviroment and personnel for the emptying of sulfide hydrogen casing gas
Evil and security risk.(2) it continuously adds.It is continuously added by dosing metering pump, though which is safer, the setting of dosage
It is according to the content of artificial detection hydrogen sulfide, since oil well hydrogen sulfide content fluctuation range is big, and artificial detection frequency is low, often leads
Dosage is caused to adjust not in time, hydrogen sulfide treatment is not up to standard.Such as undulate quantity of the hydrogen sulfide content in 2 days of Shengli Oil Field well
From 3000mg/m3To 6000mg/m3, corresponding dosage should from 31kg/d to 62kg/d, and due to artificial detection frequency be 1
Times/week, therefore can not ensure treatment effect.To ensure treatment effect, dosage need to be designed according to maximum hydrogen sulfide content, caused
Processing cost is higher.
Invention content
The present invention provides a kind of oil well hydrogen sulfide detection and intelligent dosing processing automatically in view of the deficiencies of the prior art
Device.The device is the multi-stage separation that a set of hydrogen sulfide is arranged on the gathering line of well mouth of oil well, automatic detection and feedback
System, according to the testing result of hydrogen sulfide content, the dosage of feedback regulation metering pump not only realizes the automatic standard of hydrogen sulfide
Really detection, and realizes the timely adjusting of dosage, solve dangerous existing sulfurated hydrogen detection, accuracy difference of detection and
The problem of poor processing effect.
The invention discloses a kind of oil well hydrogen sulfide devices that detection and intelligent dosing are handled automatically, which is characterized in that should
Device is made of detection unit 1, dosing unit 2 and PLC controller 3.
The detection unit 1 is by sequentially connected pressure reducing valve 11, the first solenoid valve 12, the first gas-liquid separator 13,
Two gas-liquid separators 14, gas-drying apparatus 15, gas detection cell 16, hydrogen sulfide gas detector 17, second solenoid valve 18 and storage
Liquid bucket 19 forms；The import of wherein pressure reducing valve 11 is connected with external transport pipeline, the first solenoid valve of outlet 12 of pressure reducing valve 11 and
The import of one gas-liquid separator 13 is connected, the top gas outlet of the first gas-liquid separator 13 through pipeline and gas-drying apparatus 15 into
Mouth is connected, and the bottom leakage fluid dram of the first gas-liquid separator 13 is connected through pipeline with the inlet at 14 top of the second gas-liquid separator,
The top gas outlet of second gas-liquid separator 14 is connected with the import of gas-drying apparatus 15, and the bottom of the second gas-liquid separator 14 connects
Second solenoid valve 18 is connect, the outlet of second solenoid valve 18 is positioned at the surface of liquid storing barrel 19, and the outlet of gas-drying apparatus 15 is through pipe
Road is connected with gas detection cell 16, and hydrogen sulfide gas detector 17 is located at the top of gas detection cell 16.
The dosing unit 2 is made of medicament pond 21, dosing metering pump 22 and check valve 23.Its Chinese medicine pond 21 passes through
Pipeline is connected with the entrance of dosing metering pump 22, and the outlet of dosing metering pump 22 is connected through check valve 23 with sleeve valve of oil well
It connects.
The PLC controller 3 by wired or wireless mode respectively with the first solenoid valve 12, second solenoid valve 18,
Hydrogen sulfide gas detector 17 is connected with dosing metering pump 22.
First gas-liquid separator 13 uses cyclone separator, and the inlet gas flow velocity of cyclone separator is 10~
15m/s, the shape of entrance be rectangle, section depth-width ratio be 1~2:1, area of section is 2~4cm2。
Blender is equipped in the inside of second gas-liquid separator 14, outside is equipped with heating mantle, agitator speed 60
The heating temperature of~80r/min, heating mantle are 85~90 DEG C.
Drier in the gas-drying apparatus 15 is one kind in silica gel, phosphorus pentoxide or anhydrous calcium chloride.
The gas detection cell 16 is hydrostatic column, and bottom lock, top is covered with waterproof ventilated membrane.
The present invention has the following advantages that compared with prior art and advantageous effect：
(1) the automatic detection for realizing oil well produced liquid hydrogen sulfide gas, improves detection efficiency, and it is strong to reduce labour
Degree, has ensured the safety of testing staff；
(2) technique for using eddy flow and agitating and heating two-stage gas-liquid separation, the hydrogen sulfide that will effectively can be dissolved in liquid
Gas is separated, and to which the accuracy of hydrogen sulfide gas detection be significantly increased, the detection error of hydrogen sulfide reduces
20~35%.
(3) automatically and accurately adjusting for desulfurizing agent dosage is realized, oil well hydrogen sulfide gas content reaches after processing
0.5mg/m3Hereinafter, fully meeting oil well hydrogen sulfide safety in production concentration requirement (is less than 30mg/m3) treatment effect is good.
Description of the drawings
Accompanying drawing 1 is the structural representation of the present invention.
Specific implementation mode
In conjunction with attached drawing 1, the invention will be further described.
As shown in Fig. 1, a kind of oil well hydrogen sulfide device that detection and intelligent dosing are handled automatically, the device are single by detection
Member 1, dosing unit 2 and PLC controller 3 form.
The detection unit 1 is by sequentially connected pressure reducing valve 11, the first solenoid valve 12, the first gas-liquid separator 13,
Two gas-liquid separators 14, gas-drying apparatus 15, gas detection cell 16, hydrogen sulfide gas detector 17, second solenoid valve 18 and storage
Liquid bucket 19 forms；The import of wherein pressure reducing valve 11 is connected with external transport pipeline, the first solenoid valve of outlet 12 of pressure reducing valve 11 and
The import of one gas-liquid separator 13 is connected, the top gas outlet of the first gas-liquid separator 13 through pipeline and gas-drying apparatus 15 into
Mouth is connected, and the bottom leakage fluid dram of the first gas-liquid separator 13 is connected through pipeline with the inlet at 14 top of the second gas-liquid separator,
The top gas outlet of second gas-liquid separator 14 is connected with the import of gas-drying apparatus 15, and the bottom of the second gas-liquid separator 14 connects
Second solenoid valve 18 is connect, the outlet of second solenoid valve 18 is positioned at the surface of liquid storing barrel 19, and the outlet of gas-drying apparatus 15 is through pipe
Road is connected with gas detection cell 16, and hydrogen sulfide gas detector 17 is located at the top of gas detection cell 16.
The dosing unit 2 is made of medicament pond 21, dosing metering pump 22 and check valve 23.Its Chinese medicine pond 21 passes through
Pipeline is connected with the entrance of dosing metering pump 22, and the outlet of dosing metering pump 22 is connected through check valve 23 with sleeve valve of oil well
It connects.
The PLC controller 3 by wired or wireless mode respectively with the first solenoid valve 12, second solenoid valve 18,
Hydrogen sulfide gas detector 17 is connected with dosing metering pump 22.
First gas-liquid separator 13 uses cyclone separator, and the inlet gas flow velocity of cyclone separator is 10~
15m/s, the shape of entrance be rectangle, section depth-width ratio be 1~2:1, area of section is 2~4cm2。
Blender is equipped in the inside of second gas-liquid separator 14, outside is equipped with heating mantle, agitator speed 60
The heating temperature of~80r/min, heating mantle are 85~90 DEG C.
Drier in the gas-drying apparatus 15 is one kind in silica gel, phosphorus pentoxide or anhydrous calcium chloride.
The present invention realizes the automatic detection of oil well produced liquid hydrogen sulfide gas, improves detection efficiency, reduces labour
Intensity has ensured the safety of testing staff；It, can be effectively by liquid using the technique of eddy flow and agitating and heating two-stage gas-liquid separation
The hydrogen sulfide gas of middle dissolving is separated, to which the accuracy of hydrogen sulfide gas detection be significantly increased, hydrogen sulfide
Detection error reduces 20~35%；Automatically and accurately adjusting for desulfurizing agent dosage is realized, oil well hydrogen sulfide after processing
Gas content reaches 0.5mg/m3Hereinafter, fully meeting oil well hydrogen sulfide safety in production concentration requirement (is less than 30mg/m3), processing
It works well.Therefore, present invention is generally applicable in oil well hydrogen sulfide treatment.
Claims (5)
1. a kind of oil well hydrogen sulfide automatically detection and intelligent dosing processing device, which is characterized in that the device by detection unit,
Dosing unit and PLC controller composition；
The detection unit is by sequentially connected pressure reducing valve, the first solenoid valve, the first gas-liquid separator, the second gas-liquid separation
Device, gas-drying apparatus, gas detection cell, hydrogen sulfide gas detector, second solenoid valve and liquid storing barrel composition；Wherein pressure reducing valve
Import is connected with external transport pipeline, and the first solenoid valve of outlet of pressure reducing valve is connected with the import of the first gas-liquid separator, the first gas
The top gas outlet of liquid/gas separator is connected through pipeline with the import of gas-drying apparatus, the bottom leakage fluid dram warp of the first gas-liquid separator
Pipeline is connected with the inlet at the top of the second gas-liquid separator, the top gas outlet of the second gas-liquid separator and gas-drying apparatus
Import is connected, and the bottom of the second gas-liquid separator connects second solenoid valve, the outlet of second solenoid valve positioned at liquid storing barrel just on
Side, the outlet of gas-drying apparatus are connected through pipeline with gas detection cell, and hydrogen sulfide gas detector is located at the upper of gas detection cell
Portion；
The dosing unit is made of medicament pond, dosing metering pump and check valve；Its Chinese medicine pond passes through pipeline and dosing meter
The entrance of amount pump is connected, and the outlet of dosing metering pump is connected through check valve with sleeve valve of oil well；
The PLC controller by wired or wireless mode respectively with the first solenoid valve, second solenoid valve, hydrogen sulfide gas
Detector is connected with dosing metering pump.
2. the oil well hydrogen sulfide according to claim 1 device that detection and intelligent dosing are handled automatically, it is characterised in that institute
The first gas-liquid separator stated uses cyclone separator, and the inlet gas flow velocity of cyclone separator is 10~15m/s, the shape of entrance
Shape be rectangle, section depth-width ratio be 1~2:1, area of section is 2~4cm2。
3. the oil well hydrogen sulfide according to claim 1 or 2 device that detection and intelligent dosing are handled automatically, it is characterised in that
Be equipped in the inside of second gas-liquid separator blender, it is external be equipped with heating mantle, 60~80r/min of agitator speed,
The heating temperature of heating mantle is 85~90 DEG C.
4. the oil well hydrogen sulfide according to claim 1 or 2 device that detection and intelligent dosing are handled automatically, it is characterised in that
Drier in the gas-drying apparatus is one kind in silica gel, phosphorus pentoxide or anhydrous calcium chloride.
5. the oil well hydrogen sulfide according to claim 1 or 2 device that detection and intelligent dosing are handled automatically, it is characterised in that
The gas detection cell is hydrostatic column, and bottom lock, top is covered with waterproof ventilated membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810483262.6A CN108708690A (en) | 2018-05-18 | 2018-05-18 | A kind of oil well hydrogen sulfide device that detection and intelligent dosing are handled automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810483262.6A CN108708690A (en) | 2018-05-18 | 2018-05-18 | A kind of oil well hydrogen sulfide device that detection and intelligent dosing are handled automatically |
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| CN108708690A true CN108708690A (en) | 2018-10-26 |
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ID=63869065
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| CN201810483262.6A Pending CN108708690A (en) | 2018-05-18 | 2018-05-18 | A kind of oil well hydrogen sulfide device that detection and intelligent dosing are handled automatically |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110467951A (en) * | 2019-09-20 | 2019-11-19 | 中国石油化工股份有限公司 | A kind of device and method of oil well elevated tank foul odour processing |
| CN110952962A (en) * | 2019-06-04 | 2020-04-03 | 中国石油天然气股份有限公司 | Pressure measuring and chemical adding device for oil well mouth and using method thereof |
| CN112710812A (en) * | 2020-11-17 | 2021-04-27 | 中国石油天然气股份有限公司 | Integrated process for detecting and treating toxic gas in crude oil produced by oil field |
| CN114509476A (en) * | 2020-11-16 | 2022-05-17 | 中国石油化工股份有限公司 | System and method for sampling mixed-phase produced fluid of heavy oil well and detecting content of hydrogen sulfide |
| CN114737944A (en) * | 2022-04-21 | 2022-07-12 | 东营达成石油科技有限公司 | Treatment method for ultrahigh-sulfur hydrogen sulfide of oil well produced liquid |
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| CN110952962A (en) * | 2019-06-04 | 2020-04-03 | 中国石油天然气股份有限公司 | Pressure measuring and chemical adding device for oil well mouth and using method thereof |
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| CN114737944A (en) * | 2022-04-21 | 2022-07-12 | 东营达成石油科技有限公司 | Treatment method for ultrahigh-sulfur hydrogen sulfide of oil well produced liquid |
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