CN210894340U - Device for releasing high-pressure stratum sample - Google Patents
Device for releasing high-pressure stratum sample Download PDFInfo
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- CN210894340U CN210894340U CN201921294916.7U CN201921294916U CN210894340U CN 210894340 U CN210894340 U CN 210894340U CN 201921294916 U CN201921294916 U CN 201921294916U CN 210894340 U CN210894340 U CN 210894340U
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Abstract
The utility model discloses a device for releasing high-pressure stratum samples, which comprises a frame, wherein a decompression mechanism for decompressing the high-pressure stratum fluid samples, a sample separation metering mechanism for separating gas and liquid in the samples and metering the volume of liquid components, a gas flow metering mechanism for metering the volume of the gas components and a gas detection alarm mechanism for detecting and alarming harmful gas are arranged on the frame; the pressure reduction mechanism, the sample separation metering mechanism, the gas flow metering mechanism and the gas detection alarm mechanism are sequentially communicated; the sample separation metering mechanism is connected in parallel with a bypass pipe, the bypass pipe is directly communicated with the pressure reduction mechanism and the gas flow metering mechanism, and valves for selective on-off are arranged on the bypass pipe and the sample separation metering mechanism. The utility model discloses can eliminate the potential safety hazard that the direct release in-process produced, the fluid composition of accurate measurement is applicable to various places, is particularly convenient for at the oil field day job site.
Description
Technical Field
The utility model discloses the oil technology field relates to a sampling device, especially relates to a device for releasing high pressure stratum sample. The device is used for safely and effectively releasing high-pressure fluid samples taken from a stratum in the exploration, development and production processes of an oil field.
Background
Formation fluid sampling is a common technical means in oil and gas field exploration, development and production, and is also one of the most common and effective technologies for judging the properties of formation fluids. After the formation fluid sample is tightly taken to the ground under pressure, the sample can still keep high pressure. Generally, a pressurized sample has two processing means, one is that the sample is sent to a laboratory for analysis and test, but the test result of the laboratory usually has a period as long as several weeks or even months, and the requirement of quick on-site decision cannot be met. Therefore, it is also one of the commonly used measures to obtain the reservoir fluid properties by in situ release. The current method is to directly release pressure and release the pressure in the natural environment, so that the potential safety hazard caused by direct release of pressure as high as dozens of mega cannot be eliminated, and the content of fluid components, especially important parameters such as gas-oil ratio and the like cannot be measured. A greater safety concern is if the formation fluid sample contains a deleterious substance, such as H2S, CO, etc., the direct natural release brings great potential safety hazard to field construction personnel.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to prior art's defect, provide a device that is used for releasing high pressure stratum sample of potential safety hazard, accurate analysis fluid composition of avoiding high pressure fluid sample pressure release in-process to produce.
The utility model provides a technical scheme that its technical problem adopted is:
an apparatus for releasing a high pressure formation sample, comprising a frame;
a pressure reduction mechanism for reducing the pressure of the high-pressure formation fluid sample, a sample separation metering mechanism for separating gas and liquid in the sample and metering the volume of liquid components, a gas flow metering mechanism for metering the volume of gas components and a gas detection alarm mechanism for detecting and alarming harmful gas are arranged on the frame;
the pressure reduction mechanism, the sample separation metering mechanism, the gas flow metering mechanism and the gas detection alarm mechanism are sequentially communicated;
the sample separation metering mechanism is connected in parallel with a bypass pipe, the bypass pipe is directly communicated with the pressure reduction mechanism and the gas flow metering mechanism, and valves for selective on-off are arranged on the bypass pipe and the sample separation metering mechanism.
Furthermore, in the device for releasing the high-pressure stratum sample, preferably, the pressure reduction mechanism, the sample separation metering mechanism, the gas flow metering mechanism and the gas detection alarm mechanism are integrated to form an operation panel; the above mechanisms are operated and controlled.
Further, in the device for releasing the high-pressure stratum sample, preferably, the pressure reducing mechanism comprises a pressure reducing pipeline, the pressure reducing pipeline is provided with a high-pressure joint and at least two pressure reducing valves, the high-pressure joint is used for being connected with the high-pressure sample barrel, and the pressure reducing pipeline is further respectively connected with a plurality of pressure gauges used for measuring pressures of different positions of the pressure reducing pipeline.
Further, in the device for releasing the high-pressure stratum sample, the pressure gauge preferably comprises a first pressure gauge and a second pressure gauge corresponding to each pressure reducing valve; the first pressure gauge is connected to the pressure reducing pipeline through a valve and communicated with the high-pressure connector in parallel; and valves are arranged on the pressure reducing pipelines in front of and behind the pressure reducing valve.
Further, in the device for releasing the high-pressure stratum sample, preferably, the sample separation metering mechanism comprises a separation pipeline, and two ends of the separation pipeline are respectively connected with the depressurization mechanism and the gas flow metering mechanism;
the separation pipeline is connected with a sealed oil-gas-water separation metering assembly;
and a sampling port for selecting a gas sample is arranged in front of the sealing oil-gas-water separation metering component and the bypass pipe.
Further, in the device for releasing the high-pressure stratum sample, preferably, the sealed oil-gas-water separation metering assembly comprises a metering cup and a sealing cover for sealing the metering cup; the sealing cover is inserted with a sample inlet pipe and an air outlet pipe; the separation pipeline is communicated with the sample inlet pipe, and the gas outlet pipe is communicated with the gas flow metering mechanism; and a valve is arranged on the separation pipeline in front of the measuring cup, and a pressure switch is arranged on the separation pipeline behind the air outlet pipe.
Further, in the device for releasing the high-pressure stratum sample, preferably, the gas flow metering mechanism comprises a first gas pipeline, a gas flow probe and a measuring port are sequentially connected to the first gas pipeline, and the gas flow probe is connected with a display screen.
Further, in the device for releasing a high-pressure formation sample, preferably, the gas detection alarm mechanism comprises a second gas pipeline, and the second gas pipeline is connected with a harmful gas detection probe, a gas sample sampling port and a gas release joint;
the harmful gas detection probe is at least a carbon monoxide detection probe, a hydrogen sulfide detection probe or a carbon dioxide detection probe;
the harmful gas detection probe is connected with an alarm.
Further, in the device for releasing a high-pressure formation sample, a pressure switch is preferably arranged between the gas flow metering mechanism and the gas detection alarm mechanism.
The utility model discloses a pressure reduction mechanism is with high-pressure stratum sample through the step-down, and rethread sample separation metering mechanism separates liquid and gas, measures liquid and gas respectively to harmful component to in the gas carries out the detection and analysis, makes stratum sample can release safely, accurate measurement, provides quick, accurate parameter for the oil field decision-making. The equipment is suitable for various places, and is particularly convenient for construction sites in oil fields.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic side view of an embodiment of the present invention;
fig. 3 is a schematic structural view of the sealed oil-gas-water separation metering assembly of the embodiment of the present invention.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions and positional relationships indicated by the terms "front", "rear", "upper", "lower", and the like are configured and operated in specific directions based on the directions and positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate that the device or element indicated by the terms must have a specific direction, and thus, should not be construed as limiting the present invention. And the definition of the front and back directions is determined according to the flowing direction of the fluid in the pipeline.
As shown in fig. 1-3, an apparatus for releasing a high pressure formation sample includes a housing 1; a pressure reducing mechanism A for reducing the pressure of a high-pressure stratum fluid sample, a sample separating and metering mechanism B for separating gas and liquid in the sample and metering the volume of liquid components, a gas flow metering mechanism C for metering the volume of gas components and a gas detection alarm mechanism D for detecting and alarming harmful gas are arranged on the frame 1; the pressure reduction mechanism A, the sample separation metering mechanism B, the gas flow metering mechanism C and the gas detection alarm mechanism D are sequentially communicated; wherein the sequential communication is arranged according to the front and back sequence of the fluid flow direction; the sample separating and metering mechanism B is connected with a bypass pipe L1 in parallel, the bypass pipe L1 is directly communicated with the pressure reduction mechanism A and the gas flow metering mechanism C, a valve V7 for selective on-off is arranged on the bypass pipe L1, and a valve V6 and a pressure switch V8 for selective on-off are arranged in front of and behind the sample separating and metering mechanism B.
The utility model firstly reduces the pressure of the high-pressure stratum fluid sample to normal temperature and normal pressure through the pressure reduction mechanism A, and eliminates the potential safety hazard brought in the sample release process; and then, separating the fluid and the gas in the depressurized sample by a sample separation metering mechanism B, metering the volume of the fluid, metering the gas released by the formation sample by a gas flow metering mechanism C, detecting the content of harmful gas by a gas detection alarm mechanism D, and releasing the gas into an air bag or the atmosphere after safety is confirmed.
The pressure reducing mechanism A comprises a pressure reducing pipeline L10, a high-pressure joint P1 and at least two pressure reducing valves which are used for connecting a high-pressure sample barrel are arranged on the pressure reducing pipeline L10, and a plurality of pressure gauges which are used for measuring the pressure of different positions of the pressure reducing pipeline L10 are respectively connected to the pressure reducing pipeline L10.
The pressure gauge preferably comprises a first pressure gauge M1 and a second pressure gauge corresponding to each pressure reducing valve, wherein the first pressure gauge M1 is connected to a pressure reducing pipeline L10 through a valve V1 and communicated with a high-pressure joint P1; in the present embodiment, a valve V2 and a valve V4 are provided in the pressure reducing line L10 before and after the pressure reducing valve V3 and the pressure reducing valve V5. Specifically, the pressure reducing pipeline L10 is connected with a high-pressure sample barrel through a high-pressure joint P1, and a sample of the high-pressure sample barrel is released into the pressure reducing pipeline L10, wherein the high-pressure joint P1 is a flexible joint and bears pressure of over 60 MPa; be equipped with a first manometer M1 that can use at high pressure behind high-pressure joint P1 for measure the pressure that gets into the high pressure sample in decompression pipeline L10, general high pressure sample pressure is at 2000 ~ 6000psi, selects the manometer that the range is 6000psi to be first manometer M1, for the installation and the maintenance of first manometer M1, and change when the trouble, first manometer M1 passes through valve V1 and connects on decompression pipeline L10. Be equipped with the pressure reducing valve on the relief line L10 in first manometer M1 rear, the pressure reducing valve carries out multistage decompression to high pressure sample, sets up the pressure reducing valve quantity according to the pressure of high pressure sample bucket and the pressure that needs reduce, in this embodiment, adopts two pressure reducing valves V3, pressure reducing valve V5, carries out the second grade and reduces the pressure of fluid to 0 ~ 100 psi. The pressure reducing valve V3 and the pressure reducing valve V5 can adopt manual adjustable pressure reducing valves, and the working range is at least 0-6000 psi. And the second pressure gauge M2 and the second pressure gauge M3 are respectively connected with the two pressure reducing valves V3 and V5, and the second pressure gauge M2 and the second pressure gauge M3 are also selected from pipeline pressure gauges.
The fluid after depressurization can be gas or liquid, or contain both gas and liquid. When the gas and the liquid coexist, the two need to be separated by the sample separation metering mechanism B. The sample separation metering mechanism B is connected in parallel with a bypass pipe L1, and when the fluid after pressure reduction contains only gas, the gas is directly conveyed to the gas flow metering mechanism C through the bypass pipe L1 and does not pass through the sample separation metering mechanism B any more.
The sample separation metering mechanism B comprises a separation pipeline L20, and two ends of the separation pipeline L20 are respectively connected with the depressurization mechanism A and the gas flow metering mechanism C; specifically, the separation line L20 is communicated at its front end with the pressure-reducing line L10 and at its rear end with the first gas line L30.
And the separation pipeline L20 is connected with a sealed oil-gas-water separation metering assembly. As shown in fig. 1 and 3, the sealed oil-gas-water separation metering assembly comprises a metering cup G20, a sealing cover G21 for closing the metering cup G20; a sample inlet pipe L2 and an air outlet pipe L3 are inserted into the sealing cover G21, and a sample inlet pipe L2 and an air outlet pipe L3 are hermetically arranged on the sealing cover G21; the measuring cup G20 forms a pressure-bearing seal with the sealing cover G21. The separation pipeline L20 is communicated with the sample inlet pipe L2, the tail end of the sample inlet pipe L2 is close to the bottom of the measuring cup G20, fluid in the separation pipeline L20 enters the measuring cup G20 through the sample inlet pipe L2, and the measuring cup G20 is provided with scales and can measure the volume of liquid entering the measuring cup G20; in the embodiment, the metering cup G20 is a transparent toughened and graduated container, the tail end of the air outlet pipe L3 is close to the sealing cover G21, and the sealing cover G21 is a metal cover with an O-ring seal, namely a double-sealing-ring structure is adopted. The measuring cup G20 can be removed, and cleaned after measurement. The gas entering the measuring cup G20 is discharged out of the measuring cup G20 through a gas outlet pipe L3, and the gas outlet pipe L3 is communicated with a gas flow metering mechanism C; the gas discharged from the measuring cup G20 enters the gas flow rate measuring mechanism C. And a valve V6 and a pressure switch V8 are respectively arranged on the separating pipeline L20 in front of the measuring cup G20 and the separating pipeline L20 behind the sample inlet pipe L2, and are used for cutting off the sample separating and metering mechanism B, so that the maintenance and the replacement are convenient.
The sampling port P2 for selecting gas samples is arranged in front of the sealing oil-gas-water separation metering assembly and the bypass pipe L1. The sample port P2 is located after the pressure reduction mechanism A and before the seal oil-gas-water separation metering assembly and the bypass line L1. According to a measuring tool, the pressure of a high-pressure stratum sample sampling barrel is measured in advance, the volume content of gas in the sampling barrel can be calculated preliminarily according to parameters such as stratum pressure, the volume of the sampling barrel, stratum temperature and ground temperature, the volume content of the gas can be converted into the volume of the gas under normal pressure, when the volume of the gas is smaller than 500ml, the gas is estimated according to specific requirements of a user, the gas sample is collected in an air bag through a sampling port P2 for selecting the gas sample, and the air bag can be sent to a laboratory to perform accurate analysis on the stratum sample.
The gas flow metering mechanism C comprises a gas pipeline L30, a gas flow probe D1 and a measuring port P3 are sequentially connected to the gas pipeline L30, and the gas flow probe is connected with a display screen. The gas of the separated gas entering the gas pipeline L30 is detected for its flow rate by the gas flow probe D1 and the flow rate is displayed in the display screen M4 or transmitted to a remote terminal. The gas flow probe D1 is a detachable gas flow probe, and can be installed at the measuring port P3 of the communicating gas pipeline L30, or the gas flow probe D1 can be detached, and the gas in the multiple gas pipeline L30 is collected through the measuring port P3.
The gas detection alarm mechanism D comprises a gas pipeline L40, and a harmful gas detection probe, a gas sample sampling port P4a and a gas release joint P4b are connected to the gas pipeline L40. Wherein, the gas release joint P4b is connected to the end of the gas pipeline L40 and can be connected with the gas release pipeline L50 to form a gas release path. A gas sample sampling port P4a provided on the gas line L40 is used to collect a gas sample in the air bag for detection thereof.
The measured gas enters a gas pipeline L40 in a gas detection alarm mechanism D, and a harmful gas detection probe detects the content of the gas, and as the main harmful gases in the sample are carbon monoxide, hydrogen sulfide and carbon dioxide, the harmful gas detection probe at least selects three types: namely a carbon monoxide detection probe D2, a hydrogen sulfide detection probe D3 and a carbon dioxide detection probe D4; the content of harmful gases is detected by the three probes. If harmful gases are present, the harmful gas composition and content are recorded. Then the following two processing modes are adopted: the first method comprises the following steps: closing the high pressure valve V1 of the sampling barrel, and sending the sampling barrel to the laboratoryAnalyzing and testing; and the second method comprises the following steps: connecting gas release pipe behind the gas release joint, placing the tail end of the gas release pipe in a water tank, placing soda powder in the water tank, arranging an isolation region at the position where the water tank is placed, installing a movable harmful gas detection probe, and releasing gas such as H2S and CO will dissolve in water and be neutralized by the alkaline solution.
The harmful gas detection probe is connected with an alarm M6, corresponds to a carbon monoxide detection probe D2, a hydrogen sulfide detection probe D3 and a carbon dioxide detection probe D4, and when the content of harmful substances in gas exceeds an alarm set value, the alarm M6 generates an alarm which can be in various modes such as sound and light. May also be displayed in display screen M5. And a pressure switch V9 is arranged between the gas flow metering mechanism C and the gas detection alarm mechanism D.
In the embodiment, three harmful gas detection probes are adopted, namely a carbon monoxide detection probe D2, a hydrogen sulfide detection probe D3, a carbon dioxide detection probe D4, a digital display screen M5, an audible alarm M6, a pressure switch V10, a gas sample sampling port P4a, a gas release joint P4b and a gas release pipeline L50 with the length of at least 10 meters.
In order to facilitate operation, in the device for releasing the high-pressure stratum sample, the pressure reduction mechanism A, the sample separation metering mechanism B, the gas flow metering mechanism C and the gas detection alarm mechanism D are preferably integrated to form an operation panel 2; the operation panel 2 is arranged close to an operator, and the mechanism is convenient to operate and control. Forming a worktop panel 2 means: the devices which need manual operation or observation in the pressure reduction mechanism A, the sample separation metering mechanism B, the gas flow metering mechanism C and the gas detection alarm mechanism D are all integrated on an operable platform.
Specifically, the following devices may be provided in the operation panel 2:
a first pressure gauge M1, a second pressure gauge M2, a second pressure gauge M3, a pressure reducing valve V3, a pressure reducing valve V5, a valve V1, a valve V2 and a valve V4 in the pressure reducing mechanism A;
a measuring cup G20, a valve V6 and a sampling port P2 for selecting a gas sample in the sample separating and measuring mechanism B; the bypass pipe L1 is provided with a valve V7, and a loose-leaf door 3 can be arranged in front of the measuring cup G20, so that the liquid volume of the measuring cup G20 can be read conveniently, and the measuring cup G20 can be detached and cleaned conveniently.
A pressure switch V8, a measuring port P3 and a display screen M4 in the gas flow metering mechanism C;
a gas sample sampling port P4a, a display screen M5 and a pressure switch V9 in the gas detection alarm mechanism D.
The implementation process comprises the following steps: all valves and pressure switches on the panel are closed, because the valves or the pressure switches are arranged between adjacent mechanisms, the valves are arranged in pipelines in which liquid exists, such as a pressure reducing pipeline L10, the valves in pipelines in which only gas exists, such as the valves adopted in a first gas pipeline L30 and a second gas pipeline L40, are pressure switches, and the valves or the pressure switches are used for closing the communication of the pipelines.
The sampling barrel filled with the high-pressure stratum sample is connected through a high-pressure interface P1. Open valve V1 (first needle valve switch), first manometer M1 can show the sampling barrel pressure of sample, according to parameters such as stratum pressure, appearance bucket volume, formation temperature, ground temperature, can tentatively calculate gas volume content in the appearance bucket, and the formula is:
equation 1: pFormation of earthVSample barrel/TFormation of earth＝PGround surfaceVSample barrel/TGround surface
Wherein P isFormation of earth、TFormation of earthMeasured for a manometric sampling tool, is a known quantity, PGround surfaceFor the reading of the first pressure gauge M1, the gas content in the sample barrel can be estimated by equation 1;
note: other fluid water and oil in the sample defaults to a compressibility of 1;
equation 2: pGround surfaceVSample barrel/TGround surface＝PAtmospheric pressureVAtmospheric pressure/TGround surface；
The volume value V of the released gas sample can be calculated by the formula 2Atmospheric pressure。
If VAtmospheric pressureLess than 500ml, canAccording to the specific requirements of a user, collecting the gas sample in the air bag through a sampling port P2 for selecting the gas sample behind the pressure reduction mechanism A, and then carrying out the next operation; sequentially opening a switch of the valve V2 and a switch of the valve V4, adjusting a pressure reducing valve V3 and a pressure reducing valve V5, and observing and recording readings of a second pressure gauge M2 and a second pressure gauge M3; after the last pressure reducing valve V5 is opened, the pressure reducing valve V6 enters a valve V6 in front of a sample separation metering mechanism B, and the stratum sample after pressure reduction flows into a measuring cup G20 through a sample inlet pipe L2; the pressure switch V8 before the gas metering mechanism is opened, so that part of the gas flows into the gas flow metering mechanism C. If it is determined that the formation sample is free of oil and water, valve V6 and pressure switch V8 can be selectively closed, valve V7 can be opened, and gas can directly enter gas flow metering mechanism C through bypass line L1 without passing through metering cup G20. Closing the pressure switch V8, opening the pressure switch V9 in front of the gas detection alarm mechanism D, checking whether harmful gas exists through the carbon monoxide detection probe D2, the hydrogen sulfide detection probe D3 and the carbon dioxide detection probe D4, ensuring that a small amount of gas is checked firstly, and eliminating potential safety hazard brought by the harmful gas due to extremely small release amount if the harmful gas exists;
if harmful gases are present, the harmful gas composition and content are recorded. The following two processing modes can be adopted:
the first method comprises the following steps: closing the sampling bucket valve V1, and sending the sampling bucket to the laboratory analysis test;
and the second method comprises the following steps: the gas release joint is connected with a gas release pipeline, the other end of the gas release pipeline is placed in a water tank, soda powder is placed in the water tank, an isolation area is arranged at the position where the water tank is placed, a movable harmful gas detection probe is installed, and gas, such as H, is released2S and CO are dissolved in water and neutralized by alkaline solution;
if no harmful gas exists in the sample, the normal release is carried out after the gas sample sampling port collects the sample.
The flap door 3 is opened, the volume of the liquid in the measuring cup G20 is read, the sample in the measuring cup G20 is put into a special container, and the measuring cup G20 is cleaned.
After the sample release was complete, the equipment lines were purged with high pressure pump and then cleaned with 100psi of industrial gas.
Claims (9)
1. An apparatus for releasing a high pressure formation sample, comprising a frame;
a pressure reduction mechanism for reducing the pressure of the high-pressure formation fluid sample, a sample separation metering mechanism for separating gas and liquid in the sample and metering the volume of liquid components, a gas flow metering mechanism for metering the volume of gas components and a gas detection alarm mechanism for detecting and alarming harmful gas are arranged on the frame;
the pressure reduction mechanism, the sample separation metering mechanism, the gas flow metering mechanism and the gas detection alarm mechanism are sequentially communicated;
the sample separation metering mechanism is connected in parallel with a bypass pipe, the bypass pipe is directly communicated with the pressure reduction mechanism and the gas flow metering mechanism, and valves for selective on-off are arranged on the bypass pipe and the sample separation metering mechanism.
2. The apparatus for releasing high pressure stratum sample according to claim 1, wherein the pressure reducing mechanism, the sample separating and metering mechanism, the gas flow metering mechanism and the gas detecting and alarming mechanism are integrated to form an operation panel; the above mechanisms are operated and controlled.
3. The apparatus as claimed in claim 1 or 2, wherein the pressure reducing mechanism comprises a pressure reducing pipeline, the pressure reducing pipeline is provided with a high pressure joint and at least two pressure reducing valves for connecting the high pressure sample barrel, and the pressure reducing pipeline is further connected with a plurality of pressure gauges for measuring pressures at different positions of the pressure reducing pipeline.
4. The apparatus for releasing a high pressure formation sample as claimed in claim 3, wherein the pressure gauge comprises a first pressure gauge, a second pressure gauge provided corresponding to each pressure reducing valve; the first pressure gauge is connected to the pressure reducing pipeline through a valve and communicated with the high-pressure connector in parallel; and valves are arranged on the pressure reducing pipelines in front of and behind the pressure reducing valve.
5. The apparatus for releasing high pressure stratum sample according to claim 1 or 2, wherein the sample separating and metering mechanism comprises a separating pipeline, and two ends of the separating pipeline are respectively connected with the pressure reducing mechanism and the gas flow metering mechanism;
the separation pipeline is connected with a sealed oil-gas-water separation metering assembly;
and a sampling port for selecting a gas sample is arranged in front of the sealing oil-gas-water separation metering component and the bypass pipe.
6. The apparatus for releasing a high pressure formation sample of claim 5, wherein the sealed oil, gas and water separation metering assembly comprises a metering cup, a sealing cover closing the metering cup; the sealing cover is inserted with a sample inlet pipe and an air outlet pipe; the separation pipeline is communicated with the sample inlet pipe, and the gas outlet pipe is communicated with the gas flow metering mechanism; and a valve is arranged on the separation pipeline in front of the measuring cup, and a pressure switch is arranged on the separation pipeline behind the air outlet pipe.
7. The apparatus according to claim 1 or 2, wherein the gas flow metering mechanism comprises a first gas pipeline, a gas flow probe and a measuring port are sequentially connected to the first gas pipeline, and a display screen is connected to the gas flow probe.
8. The device for releasing the high-pressure stratum sample according to claim 1 or 2, wherein the gas detection alarm mechanism comprises a second gas pipeline, and a harmful gas detection probe, a gas sample sampling port and a gas release joint are connected to the second gas pipeline;
the harmful gas detection probe is at least a carbon monoxide detection probe, a hydrogen sulfide detection probe or a carbon dioxide detection probe;
the harmful gas detection probe is connected with an alarm.
9. The apparatus for releasing high pressure formation sample according to claim 1 or 2, wherein a pressure switch is provided between the gas flow metering mechanism and the gas detection alarm mechanism.
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| CN110470814A (en) * | 2019-08-08 | 2019-11-19 | 张忠青 | For discharging the device of high pressure formation sample |
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| CN110470814A (en) * | 2019-08-08 | 2019-11-19 | 张忠青 | For discharging the device of high pressure formation sample |
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Inventor after: Zhang Zhongqing Inventor after: Gao Yongde Inventor after: Chen Ming Inventor after: Du Chao Inventor after: Wang Shiyue Inventor after: Sun Dianqiang Inventor before: Zhang Zhongqing |
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