CN113984578A - Separation device and separation method for measuring sulfur content of sulfur-containing produced gas - Google Patents
Separation device and separation method for measuring sulfur content of sulfur-containing produced gas Download PDFInfo
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- CN113984578A CN113984578A CN202111244998.6A CN202111244998A CN113984578A CN 113984578 A CN113984578 A CN 113984578A CN 202111244998 A CN202111244998 A CN 202111244998A CN 113984578 A CN113984578 A CN 113984578A
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- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 146
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 119
- 239000011593 sulfur Substances 0.000 title claims abstract description 119
- 238000000926 separation method Methods 0.000 title claims abstract description 61
- 239000007788 liquid Substances 0.000 claims abstract description 34
- 239000007787 solid Substances 0.000 claims abstract description 26
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 239000012528 membrane Substances 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims description 203
- 238000004519 manufacturing process Methods 0.000 claims description 53
- 230000009467 reduction Effects 0.000 claims description 21
- 238000005303 weighing Methods 0.000 claims description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 12
- 239000003345 natural gas Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 14
- 238000005260 corrosion Methods 0.000 description 8
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 7
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005536 corrosion prevention Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 125000001741 organic sulfur group Chemical group 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4077—Concentrating samples by other techniques involving separation of suspended solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4077—Concentrating samples by other techniques involving separation of suspended solids
- G01N2001/4083—Concentrating samples by other techniques involving separation of suspended solids sedimentation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4077—Concentrating samples by other techniques involving separation of suspended solids
- G01N2001/4088—Concentrating samples by other techniques involving separation of suspended solids filtration
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- Life Sciences & Earth Sciences (AREA)
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- General Health & Medical Sciences (AREA)
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Abstract
The invention discloses a separation device for measuring the sulfur content of sulfur-containing produced gas and a separation method thereof, and relates to the technical field of sulfur-containing gas well exploitation, wherein the separation device comprises a first separator, a second separator and a gas collector which are sequentially arranged; the first separator comprises a first shell, a first outlet is arranged on the first shell, and a particle filter screen for separating sulfur-containing solids is arranged at the first outlet; the second separator comprises a second shell, a second outlet is formed in the second shell, and a liquid filtering membrane used for separating sulfur-containing liquid is arranged at the second outlet; the first filter and the second filter are communicated with each other through a separation pipeline, and the separation pipeline is provided with a one-way valve; the separation method separates the elemental sulfur in the produced gas, is convenient for measuring the elemental sulfur in the produced gas, and has simple structure and convenient operation.
Description
Technical Field
The invention relates to the technical field of development of sulfur-containing gas wells, in particular to a separation device for measuring the sulfur content of sulfur-containing produced gas and a separation method thereof.
Background
The high-sulfur-content gas reservoir refers to a gas reservoir with the hydrogen sulfide content of 30-150 g/m3 in the produced natural gas; since the natural gas with high sulfur content generally contains CO2, the natural gas with high sulfur content has quite strong corrosiveness, so that the corrosion of a gas well with high sulfur content is one of the problems of the development of the gas well with high sulfur content; because the hydrogen sulfide gas seriously threatens human health, safety and environment and even endangers life, the content of the hydrogen sulfide gas in the produced gas is generally measured in the prior art, and anti-corrosion and anti-blocking measures are taken for high-sulfur gas wells according to the content of the hydrogen sulfide gas.
However, the produced gas of the high-sulfur-content gas reservoir not only contains hydrogen sulfide gas, but also contains a large amount of elemental sulfur and sulfur-containing organic matters, and the elemental sulfur in the produced gas can be deposited in ground equipment and pipelines to cause serious corrosion of the equipment; meanwhile, sulfur-containing organic sulfur can also cause corrosion to equipment and pipelines in the transportation process, and in the prior art, the corrosion performance of elemental sulfur is often detected after the elemental sulfur is deposited, so that the device and the method cannot play a role in prevention, and a device and a method for separating and measuring the elemental sulfur in the produced gas are also lacked in the prior art.
Disclosure of Invention
The invention aims to: aiming at the problem that the device and the method for separating and measuring the elemental sulfur in the produced gas are lacked in the produced gas in the prior art, the separation device and the separation method for measuring the sulfur content of the sulfur-containing produced gas are provided, the elemental sulfur in the produced gas is separated, the determination of the elemental sulfur in the produced gas is convenient, and the problems are solved.
The technical scheme of the invention is as follows:
a separator for measuring sulfur content in sulfur-containing produced gas specifically comprises:
a first separator to separate sulfur-containing solids in the produced gas;
a second separator for separating sulfur-containing liquid from the produced gas treated by the first separator;
and the gas collector is used for collecting the produced gas treated by the second separator.
Further, the first separator comprises a first shell, a first outlet is arranged on the first shell, and a particle filter screen for separating sulfur-containing solids is arranged at the first outlet; the second separator comprises a second shell, a second outlet is formed in the second shell, and a liquid filtering membrane used for separating sulfur-containing liquid is arranged at the second outlet; the first separator is communicated with the second separator, the second separator is communicated with the gas collector through separation pipelines, and the separation pipelines are provided with one-way valves.
Further, the first separator, the second separator and the gas collector are arranged at the following positions: the first separator and the gas collector are both positioned above the second separator, the second separator is horizontally arranged, and the liquid filtering membrane 22 is vertically arranged on the right side of the second shell; when the gas-liquid separator is used, after the gas-liquid mixture from the first separator enters the second separator, the sulfur-containing liquid is deposited at the bottom of the second shell, and the sulfur-containing gas is discharged from a second outlet of the second shell and enters the gas collector; the initial state of the gas collector is a vacuum state; the inlet of the first separator is in the upper part of the first shell, and the first outlet is in the lower part of the first shell.
Further, the particle filter screen is a sulfur-resistant filter screen with at least 100 meshes, and preferably, at least two layers of sulfur-resistant filter screens and fine sand arranged between the sulfur-resistant filter screens form a particle filter screen layer.
Further, the liquid filtration membrane is a commercially available filtration membrane capable of water-gas separation.
Further, the second separator is coaxially arranged with a separation pipeline connected with the second separator, and the inner diameter of the second separator is larger than that of the separation pipeline; the second shell is horizontally arranged, the separated sulfur-containing liquid is collected at the lowest point of the second shell, and the residual sulfur-containing gas enters the separation pipeline through the liquid filtering membrane and then is collected in the gas collector.
Further, the first housing includes a fixing groove and a movable plate slidable along an inner surface of the fixing groove, the fixing groove changing a size of a space inside the fixing groove by sliding of the movable plate; the first outlet is arranged on the bottom surface of the fixed groove or on the side wall close to the bottom surface of the fixed groove; the space size in the fixed slot is adjusted through the movable plate, so that the produced gas with the elementary sulfur solid filtered out in the first shell is completely discharged, and the accuracy of measuring the total sulfur content in the produced gas is improved.
Further, a flexible bag is arranged in the fixing groove, and the first outlet is arranged on the flexible bag; preferably, the flexible bag is made of a flexible rubber material; the content of elemental sulfur in the produced gas can be obtained by weighing the mass of the flexible bag before and after the produced gas is filtered; the solid precipitated from the produced gas is mainly elemental sulfur and also comprises a small amount of mineral powder, so that the solid obtained by filtering can be approximately regarded as the elemental sulfur; for accurate calculation, the accurate content of elemental sulfur can also be obtained by measuring the sulfur content in the sulfur-containing solid and analyzing the composition.
Furthermore, weighing devices are arranged on the bottom surfaces of the first shell and the second shell; the weighing device is used for weighing the weight of the separated sulfur-containing solid and sulfur-containing liquid, and is convenient for calculating the sulfur content in the produced gas.
Further, the weighing device is an electronic weighing meter; preferably, the flexible bag within the first housing is placed directly on the electronic weigh scale.
The gas production box is communicated with a gas production tree of the sulfur-containing gas well, and the gas production box is communicated with the first separator through a separation pipeline; a gas production cavity is arranged in the gas production box, and the gas production cavity is in a vacuum state before gas production, so that the weight of the produced gas collected in the gas production cavity can be conveniently measured; the space of the gas production cavity is adjustable; the space of the gas production cavity becomes smaller, so that the produced gas in the gas production cavity is pushed into the first separator.
Further, the space of the gas collecting cavity is adjustable and is realized by adopting the following structure: the gas production box comprises a box body and a cover body which can move up and down along the inner side surface of the box body; the gas collecting cavity is formed by the lower surface of the cover body and the inner side surface of the box body in an enclosing mode; the space adjustment of the gas collecting cavity can be realized by moving the cover body; when the device is used, the cover body can be moved to the lowest part of the box body, and then the cover body is pushed by filling collected produced gas so as to move upwards; when the collected gas needs to be collected, the cover body is pressed down, and the collected gas in the gas collection cavity can be completely discharged.
Further, the cover body of the gas production box and the movable plate of the first shell can be pressed downwards through a hydraulic rod or a pneumatic rod to realize automatic control.
Furthermore, the device also comprises a pressure and temperature reduction pipeline; the pressure and temperature reduction pipeline is arranged on a separation pipeline between the gas production box and the first shell; at least one pressure reducing valve is arranged on the pressure reducing and temperature reducing pipeline; and a one-way valve is arranged on the separation pipeline.
Furthermore, a pressure reducing valve can be arranged on a separation pipeline between the first separator and the second separator, so that part of liquefiable gas in the produced gas is liquefied, particularly sulfur-containing organic matters, and the determination of the sulfur content in the sulfur-containing liquid is facilitated.
A separation method based on the separation device comprises the following steps:
s1, collecting the produced gas of a natural gas wellhead with a certain volume or weight through a gas production box, and then compressing the space of a gas production cavity in the gas production box to ensure that the produced gas fully enters a temperature and pressure reduction pipeline;
s2, reducing the pressure and the temperature through a pressure reduction pipeline to obtain the to-be-detected produced gas with the temperature not higher than 60 ℃ and the pressure of 0.3-0.5 MPa;
and S3, sequentially separating sulfur-containing solids and sulfur-containing liquid in the produced gas to be detected through the first separator and the second separator, and collecting residual gas in the produced gas to be detected through the gas collector.
After the produced gas to be detected completely enters the first separator, slowly pressing down the movable plate at a constant speed to ensure that the produced gas to be detected from which sulfur-containing solids are separated in the first separator fully enters the second separator; the pressing speed of the movable plate is 0.5-2 cm/min.
Compared with the prior art, the invention has the beneficial effects that:
1. a separation device for measuring the sulfur content of sulfur-containing produced gas sequentially separates sulfur-containing solid, sulfur-containing liquid and sulfur-containing gas from the produced gas through a first separator and a second separator so as to calculate the content of elemental sulfur and the total sulfur content in the produced gas, and provide certain basis and reference data for corrosion prevention and blockage prevention construction of a gas production plant; meanwhile, a pressure reduction and temperature reduction pipeline is arranged in the separation device, so that elemental sulfur in the produced gas is fully precipitated, and the accuracy of the elemental sulfur measurement result is improved.
2. A sulfur content measuring and separating method for sulfur-containing produced gas comprises the steps of firstly reducing the pressure and the temperature of the produced gas through a pressure reduction and temperature reduction pipeline, and then sequentially separating sulfur-containing solids, sulfur-containing liquid and sulfur-containing gas in the produced gas, so that the sulfur content of various sulfur-containing substances in the sulfur-containing produced gas can be conveniently measured, and reference data are provided for corrosion prevention and blocking prevention of equipment and pipelines around a gas production well of a gas production plant.
Drawings
FIG. 1 is a schematic view showing a separator for measuring the sulfur content in a sulfur-containing produced gas;
FIG. 2 is a schematic structural view of a first casing in a separation device for measuring the sulfur content in a sulfur-containing produced gas;
fig. 3 is a schematic structural view of a second casing in a separation device for measuring the sulfur content in a sulfur-containing produced gas.
Reference numerals: 1-a first separator, 11-a first shell, 111-a fixed groove, 112-a movable plate, 12-a particle filter screen, 13-a flexible bag, 2-a second separator, 21-a second shell, 22-a liquid filter membrane, 3-a gas collector, 4-a gas production box, 41-a box body, 42-a cover body, 5-a depressurization and cooling pipeline, 6-a one-way valve and 7-a separation pipeline.
Detailed Description
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
Example one
The produced gas of the high-sulfur-content gas reservoir not only contains hydrogen sulfide gas, but also contains a large amount of elemental sulfur and sulfur-containing organic matters, and the elemental sulfur in the produced gas can be deposited in ground equipment and pipelines to cause serious corrosion of the equipment; meanwhile, sulfur-containing organic sulfur can also cause corrosion to equipment and pipelines in the transportation process, and in the prior art, the corrosion performance of elemental sulfur is often detected after the elemental sulfur is deposited, so that the device and the method cannot play a role in prevention, and a device and a method for separating and measuring the elemental sulfur in the produced gas are also lacked in the prior art.
In order to solve the above problem, a separation apparatus for measuring the sulfur content in a sulfur-containing produced gas is provided, please refer to fig. 1 to 3, which specifically includes:
a first separator 1, wherein the first separator 1 separates sulfur-containing solids in the produced gas;
the second separator 2 is used for separating sulfur-containing liquid in the produced gas treated by the first separator 1;
and the gas collector 3 is used for collecting the produced gas treated by the second separator 2.
The first separator 1 comprises a first shell 11, a first outlet is arranged on the first shell 11, and a particle filter screen 12 for separating sulfur-containing solids is arranged at the first outlet; the second separator 2 comprises a second shell 21, a second outlet is arranged on the second shell 21, and a liquid filtering membrane 22 for separating sulfur-containing liquid is arranged at the second outlet; the first separator 1 is communicated with the second separator 2, the second separator 2 is communicated with the gas collector 3 through a separation pipeline 7, and a one-way valve 6 is arranged on the separation pipeline 7.
The first separator 1, the second separator 2, and the gas collector 3 are disposed at the following positions: the first separator 1 and the gas collector 3 are both positioned above the second separator 2, the second separator 2 is horizontally arranged, and the liquid filtering membrane 22 is vertically arranged on the right side of the second shell 21; in use, after the gas-liquid mixture from the first separator 1 enters the second separator 2, the sulfur-containing liquid is deposited at the bottom of the second shell 21, and the sulfur-containing gas is discharged from the second outlet of the second shell 21 and enters the gas collector 3; the initial state of the gas collector 3 is a vacuum state; the inlet of the first separator 1 is in the upper part of the first housing 11 and the first outlet is in the lower part of the first housing 11.
It should be noted that the particle filter 12 is a sulfur-resistant filter with at least 100 meshes, and preferably, at least two layers of sulfur-resistant filters and fine sand disposed between the sulfur-resistant filters constitute the particle filter 12.
The liquid filtration membrane 22 is a commercially available membrane capable of water-gas separation.
Referring to fig. 3, the second separator 2 is coaxially disposed with a separation pipe 7 connected to the second separator 2, and the inner diameter of the second separator 2 is larger than that of the separation pipe 7; the second shell 21 is horizontally arranged, the separated sulfur-containing liquid is collected at the lowest point of the second shell 21, and the residual sulfur-containing gas enters the separation pipeline 7 through the liquid filtering membrane 22 and then is collected in the gas collector 3.
The first housing 11 includes a fixing groove 111 and a movable plate 112 slidable along an inner surface of the fixing groove 111, the fixing groove 111 changing a size of a space inside the fixing groove 111 by sliding of the movable plate 112; the first outlet is disposed on the bottom surface of the fixing groove 111 or on a sidewall near the bottom surface of the fixing groove 111; the space size in the fixed groove 111 is adjusted by the movable plate 112, so that the produced gas with the elemental sulfur solid filtered out in the first shell 11 is completely discharged, and the accuracy of measuring the total sulfur content in the produced gas is improved.
Example two
Second embodiment, a further description of the first embodiment is provided, which is not repeated herein, and please refer to fig. 1-3, a flexible bag 13 is disposed in the fixing groove 111, and the first outlet is disposed on the flexible bag 13; preferably, said flexible bag 13 is made of a flexible rubber material; the content of elemental sulfur in the produced gas can be obtained by weighing the mass of the flexible bag 13 before and after the produced gas is filtered; the solid precipitated from the produced gas is mainly elemental sulfur and also comprises a small amount of mineral powder, so that the solid obtained by filtering can be approximately regarded as the elemental sulfur; for accurate calculation, the accurate content of elemental sulfur can also be obtained by measuring the sulfur content in the sulfur-containing solid and analyzing the composition.
Weighing devices are arranged on the bottom surfaces of the first shell 11 and the second shell 21; the weighing device is used for weighing the weight of the separated sulfur-containing solid and sulfur-containing liquid, and is convenient for calculating the sulfur content in the produced gas.
The weighing device is an electronic weigher; preferably, the flexible bag 13 inside said first housing 11 is placed directly on the electronic weighing scale.
EXAMPLE III
Embodiment three is a further description of embodiment one, the same components are not repeated herein, please refer to fig. 1-3, and further includes a gas production box 4 communicated with a gas production tree of a sour gas well, wherein the gas production box 4 is communicated with the first separator 1 through a separation pipeline 7; a gas production cavity is arranged in the gas production box 4, and the gas production cavity is in a vacuum state before gas production, so that the weight of the produced gas collected in the gas production cavity can be conveniently measured; the space of the gas production cavity is adjustable; the space of the gas production chamber becomes smaller, so that the produced gas in the gas production chamber is pushed into the first separator 1.
It should be noted that the space of the gas collecting cavity is adjustable and is realized by adopting the following structure: the gas production box 4 comprises a box body 41 and a cover body 42 which can move up and down along the inner side surface of the box body 41; the gas collecting cavity is formed by the lower surface of the cover body 42 and the inner side surface of the box body 41 in a surrounding mode; the space adjustment of the gas collecting cavity can be realized by moving the cover body 42; when in use, the cover body 42 can be moved to the lowest part of the box body 41, and then the collected produced gas is filled in to push the cover body 42, so that the cover body 42 moves upwards; when the collected gas needs to be collected, the cover body 42 is pressed down, and the collected gas in the gas collection cavity can be completely discharged.
It should be noted that, the cover 42 of the gas production tank 4 and the pressing of the movable plate 112 of the first housing 11 can be automatically controlled by a hydraulic rod or a pneumatic rod.
Example four
The fourth embodiment is a further description of the first embodiment, and the same components are not described again, please refer to fig. 1-3, and further includes a pressure-reducing and temperature-reducing pipeline 5; the pressure and temperature reduction pipeline 5 is arranged on the separation pipeline 7 between the gas production box 4 and the first shell 11; at least one pressure reducing valve is arranged on the pressure reducing and cooling pipeline 5; the separation pipeline 7 is provided with a one-way valve 6.
In this embodiment, the pressure reduction and temperature reduction of the produced gas are realized through the pressure reduction valve on the pressure reduction and temperature reduction pipeline 5, so that elemental sulfur in the produced gas is sufficiently separated out, and gas-solid separation is realized in the first separator 1.
It should be noted that, in the pressure reduction process, the produced gas is cooled along with the pressure reduction, so that an additional cooling device is not required.
In addition, a pressure reducing valve may be provided in the separation line 7 between the first separator 1 and the second separator 2, so that a part of the liquefiable gas in the produced gas is liquefied, particularly sulfur-containing organic substances, thereby facilitating the determination of the sulfur content in the sulfur-containing liquid.
EXAMPLE five
Embodiment five is a separation method based on above-mentioned separator, including the following step:
s1, collecting the produced gas of a natural gas wellhead with a certain volume or weight through the gas production box 4, and then compressing the space of a gas production cavity in the gas production box 4 to ensure that the produced gas fully enters a temperature and pressure reduction pipeline;
s2, reducing the pressure and the temperature through a pressure reduction pipeline to obtain the to-be-detected produced gas with the temperature not higher than 60 ℃ and the pressure of 0.3-0.5 MPa;
and S3, sequentially separating sulfur-containing solids and sulfur-containing liquid in the produced gas to be detected through the first separator 1 and the second separator 2, and collecting residual gas in the produced gas to be detected through the gas collector 3.
After the produced gas to be detected completely enters the first separator 1, slowly pressing down the movable plate 112 at a constant speed, so that the produced gas to be detected, from which sulfur-containing solids are separated in the first separator 1, fully enters the second separator 2; the pressing speed of the movable plate 112 is 0.5-2 cm/min.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (10)
1. A separator for measuring sulfur content in sulfur-containing produced gas is characterized by comprising:
a first separator (1), wherein the first separator (1) separates sulfur-containing solids in the produced gas;
a second separator (2), wherein the second separator (2) separates sulfur-containing liquid in the produced gas treated by the first separator (1);
and the gas collector (3) is used for collecting the produced gas treated by the second separator (2).
2. A separation apparatus for measuring sulfur content in a sulfur-containing produced gas according to claim 1, wherein the first separator (1) comprises a first housing (11), a first outlet is provided on the first housing (11), and a particle filter (12) for separating sulfur-containing solids is provided at the first outlet;
the second separator (2) comprises a second shell (21), a second outlet is formed in the second shell (21), and a liquid filtering membrane (22) for separating sulfur-containing liquid is arranged at the second outlet;
the first separator (1) is communicated with the second separator (2), the second separator (2) is communicated with the gas collector (3) through a separation pipeline (7), and a one-way valve (6) is arranged on the separation pipeline (7);
the second separator (2) and a separation pipeline (7) connected with the second separator (2) are coaxially arranged, and the inner diameter of the second separator (2) is larger than that of the separation pipeline (7).
3. The separation device for measuring the sulfur content in a sulfur-containing produced gas according to claim 2, wherein the first casing (11) comprises a fixed groove (111) and a movable plate (112) which is slidable along the inner surface of the fixed groove (111), and the fixed groove (111) changes the size of the space inside the fixed groove (111) by the sliding of the movable plate (112); the first outlet is disposed on the bottom surface of the fixing groove (111) or on a sidewall adjacent to the bottom surface of the fixing groove (111).
4. A separation apparatus for measuring sulfur content in a sulfur-containing produced gas according to claim 3, wherein a flexible bag (13) is provided in the fixing groove (111), and the first outlet is provided in the flexible bag (13).
5. The separation device for measuring the sulfur content in a sulfur-containing produced gas according to any one of claims 2 to 4, wherein weighing devices are provided on the bottom surfaces of the first casing (11) and the second casing (21).
6. The separation device for measuring the sulfur content of the sulfur-containing produced gas is characterized by further comprising a gas production box (4) communicated with a gas production tree of the sulfur-containing gas well, wherein the gas production box (4) is communicated with the first separator (1) through a separation pipeline (7); a gas production cavity is arranged in the gas production box (4), and the gas production cavity is in a vacuum state before gas production; the space of the gas production cavity is adjustable; the space of the gas production cavity is reduced, so that the produced gas in the gas production cavity is pushed into the first separator (1).
7. The separation device for measuring the sulfur content in the sulfur-containing produced gas according to claim 6, wherein the gas production box (4) comprises a box body (41) and a cover body (42) which can move up and down along the inner side surface of the box body (41); the gas cavity is enclosed by the lower surface of the cover body (42) and the inner side surface of the box body (41).
8. The separation device for measuring the sulfur content in the sulfur-containing produced gas according to claim 6, further comprising a pressure and temperature reduction pipeline (5); the pressure and temperature reduction pipeline (5) is arranged on a separation pipeline (7) between the gas production box (4) and the first shell (11); at least one pressure reducing valve is arranged on the pressure reducing and cooling pipeline (5); and a one-way valve (6) is arranged on the separation pipeline (7).
9. A separation method based on the separation device according to any one of claims 1 to 8, characterized by comprising the steps of:
s1, collecting the produced gas of a natural gas wellhead with a certain volume or weight through the gas production box (4), and then compressing the space of a gas production cavity in the gas production box (4) to ensure that the produced gas fully enters a temperature and pressure reduction pipeline;
s2, reducing the pressure and the temperature through a pressure reduction pipeline to obtain the to-be-detected produced gas with the temperature not higher than 60 ℃ and the pressure of 0.3-0.5 MPa;
and S3, sequentially separating sulfur-containing solids and sulfur-containing liquid in the produced gas to be detected through the first separator (1) and the second separator (2), and collecting residual gas in the produced gas to be detected through the gas collector (3).
10. The separation method according to claim 9, wherein after the produced gas to be detected completely enters the first separator (1), the movable plate (112) is slowly pressed down at a constant speed, so that the produced gas to be detected, from which the sulfur-containing solids are separated, in the first separator (1) fully enters the second separator (2); the pressing speed of the movable plate (112) is 0.5-2 cm/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111244998.6A CN113984578B (en) | 2021-10-26 | 2021-10-26 | Separation device and separation method for sulfur content determination of sulfur-containing produced gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111244998.6A CN113984578B (en) | 2021-10-26 | 2021-10-26 | Separation device and separation method for sulfur content determination of sulfur-containing produced gas |
Publications (2)
| Publication Number | Publication Date |
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| CN113984578A true CN113984578A (en) | 2022-01-28 |
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| US20120137764A1 (en) * | 2008-08-26 | 2012-06-07 | Jimmy Lawrence | Detecting Gas Compounds For Downhole Fluid Analysis |
| US20140024129A1 (en) * | 2012-07-20 | 2014-01-23 | Cameron International Corporation | Systems and Methods for Measuring Total Sulfur Content in a Fluid Stream |
| CN103566701A (en) * | 2013-09-06 | 2014-02-12 | 中国石油大学(华东) | Sulfur deposition inducing and gathering device of gathering and transportation system |
| CN106124354A (en) * | 2016-06-17 | 2016-11-16 | 西南石油大学 | The sulfur solubility online testing device of acid gas reservoir and method |
| CN109323953A (en) * | 2017-08-01 | 2019-02-12 | 中国石油天然气股份有限公司 | The measuring method of element sulfur solubility in sulfurous gas |
| CN111678849A (en) * | 2019-03-11 | 2020-09-18 | 中国石油化工股份有限公司 | Experimental device and method for gas-liquid sulfur two-phase seepage curve |
| CN212722619U (en) * | 2020-07-29 | 2021-03-16 | 中国测试技术研究院化学研究所 | Rapid analysis device for determining total sulfur content in natural gas |
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| US20120137764A1 (en) * | 2008-08-26 | 2012-06-07 | Jimmy Lawrence | Detecting Gas Compounds For Downhole Fluid Analysis |
| US20140024129A1 (en) * | 2012-07-20 | 2014-01-23 | Cameron International Corporation | Systems and Methods for Measuring Total Sulfur Content in a Fluid Stream |
| CN103566701A (en) * | 2013-09-06 | 2014-02-12 | 中国石油大学(华东) | Sulfur deposition inducing and gathering device of gathering and transportation system |
| CN106124354A (en) * | 2016-06-17 | 2016-11-16 | 西南石油大学 | The sulfur solubility online testing device of acid gas reservoir and method |
| CN109323953A (en) * | 2017-08-01 | 2019-02-12 | 中国石油天然气股份有限公司 | The measuring method of element sulfur solubility in sulfurous gas |
| CN111678849A (en) * | 2019-03-11 | 2020-09-18 | 中国石油化工股份有限公司 | Experimental device and method for gas-liquid sulfur two-phase seepage curve |
| CN212722619U (en) * | 2020-07-29 | 2021-03-16 | 中国测试技术研究院化学研究所 | Rapid analysis device for determining total sulfur content in natural gas |
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