CN111335889A - Sampling device - Google Patents
Sampling device Download PDFInfo
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- CN111335889A CN111335889A CN201811553796.8A CN201811553796A CN111335889A CN 111335889 A CN111335889 A CN 111335889A CN 201811553796 A CN201811553796 A CN 201811553796A CN 111335889 A CN111335889 A CN 111335889A
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- 238000005070 sampling Methods 0.000 title claims abstract description 220
- 239000007788 liquid Substances 0.000 claims abstract description 127
- 238000000926 separation method Methods 0.000 claims abstract description 99
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 239000003595 mist Substances 0.000 claims description 39
- 230000001502 supplementing effect Effects 0.000 claims description 37
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 241000191291 Abies alba Species 0.000 abstract description 14
- 238000005507 spraying Methods 0.000 abstract description 7
- 230000001174 ascending effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 196
- 239000012530 fluid Substances 0.000 description 31
- 230000000694 effects Effects 0.000 description 17
- 238000004519 manufacturing process Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 238000005204 segregation Methods 0.000 description 6
- 238000000605 extraction Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- -1 this Chemical compound 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
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- 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/086—Withdrawing samples at the surface
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides a sampling device, which comprises a sampling cylinder and an oil pipeline; the sampling tube is arranged in the oil pipeline, the sampling tube is arranged in the sampling tube, and the oil pipeline is arranged in the sampling tube in a sealing mode; a plurality of first oil outlet holes are formed in the side wall of the part, extending into the sampling cylinder, of the oil delivery pipe. According to the sampling device, oil gas in the Christmas tree enters the oil delivery pipe through the oil delivery port, under the pressure action of the oil gas, the oil gas in the oil delivery pipe is sprayed out of the first oil outlet holes into the oil taking cylinder, the quick separation of the oil gas is realized due to the fact that the spraying speeds of the liquid part and the gas part are different when the oil gas is sprayed out of the first oil outlet holes, the oil gas separation efficiency is effectively improved, meanwhile, due to the fact that density difference exists between the liquid and the gas in the oil gas, the liquid part in the oil gas sprayed out of the first oil outlet holes flows to the bottom of the oil taking cylinder, the gas part is discharged in an ascending mode, and the sampling efficiency is further improved.
Description
Technical Field
The invention relates to the technical field of oilfield exploitation, in particular to a sampling device.
Background
In the process of oil field exploitation, a worker needs to perform sampling detection on oil in a wellhead Christmas tree at regular time, and a common sampling device is an oil taking cylinder. However, because the sampling liquid taken out from the Christmas tree is in an oil-gas mixed state, the oil and gas are separated in a natural sedimentation mode after the sampling liquid flows into the oil taking barrel, and the separation efficiency is low.
Disclosure of Invention
The invention provides a sampling device, which aims to solve the problem that the existing oil taking cylinder is low in oil-gas separation efficiency.
The invention provides a sampling device, which comprises a sampling cylinder and an oil pipeline;
the sampling barrel is arranged in the oil pipeline, and the oil pipeline is arranged in the sampling barrel;
the oil pipeline stretches into a plurality of first oil outlet holes are formed in the side wall of the part in the sampling cylinder.
Optionally, the sampling device further includes a separation sleeve, the separation sleeve is sleeved on a portion of the oil pipeline extending into the sampling cylinder, the separation sleeve is arranged close to the end portion of the second end of the oil pipeline in a sealing manner, a preset gap is formed between the inner wall of the separation sleeve and the outer wall of the oil pipeline, and the end portion of the separation sleeve far away from the second end of the oil pipeline and the oil pipeline form an annular opening;
a plurality of second oil outlet holes are formed in the outer wall of the separation sleeve; the second oil outlet hole and the first oil outlet hole are arranged in a staggered mode.
Optionally, the separation sleeve is detachably arranged on the oil delivery pipe.
Optionally, the second end of the oil pipeline is arranged at the bottom of the sampling tube.
Optionally, the sampling device further comprises a mist supplementing net, and the mist supplementing net is used for separating liquid in the oil gas sprayed from the first oil outlet; the mist supplementing net is arranged in the sampling cylinder and divides the sampling cylinder into an upper cavity and a lower cavity, and the mist supplementing net is located above the first oil outlet.
Optionally, the mist supplementing net is detachably arranged on the inner wall of the sampling tube.
Optionally, the sampling device further comprises a liquid taking valve arranged at the bottom of the sampling cylinder.
Optionally, the sampling device further comprises a liquid level meter arranged on the side wall of the sampling tube.
Optionally, the sampling tube comprises a tube body and a tube cover;
the oil delivery pipe is arranged on the barrel in a penetrating mode and fixed on the barrel cover.
Optionally, the sampling device further comprises a telescopic air outlet pipe, and the air outlet pipe is communicated with an air outlet formed in the cylinder cover.
The invention provides a sampling device, which comprises a sampling cylinder and an oil pipeline; the sampling tube is arranged in the oil pipeline, the sampling tube is arranged in the sampling tube, and the oil pipeline is arranged in the sampling tube in a sealing mode; a plurality of first oil outlet holes are formed in the side wall of the part, extending into the sampling cylinder, of the oil delivery pipe. According to the sampling device, oil gas in the Christmas tree enters the oil delivery pipe through the oil delivery port, under the pressure action of the oil gas, the oil gas in the oil delivery pipe is sprayed out of the first oil outlet holes into the oil taking cylinder, and due to the fact that the spraying speeds of the liquid part and the gas part are different when the oil gas is sprayed out of the first oil outlet holes, the oil gas is separated quickly, the oil-gas separation efficiency of the oil taking device is effectively improved, and meanwhile due to the fact that density difference exists between the liquid and the gas in the oil gas, the liquid part in the oil gas sprayed out of the first oil outlet holes flows to the bottom of the oil taking cylinder, the gas part is discharged upwards, and the sampling efficiency is improved.
The construction of the present invention and other objects and advantages thereof will be more apparent from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a first structure of a sampling device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a second structure of a sampling device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a third sampling device according to an embodiment of the present invention.
Reference numerals:
1-a sampling tube;
11-a barrel;
12-a cylinder cover;
13-air outlet;
2-oil delivery pipe;
21-oil conveying port;
22-a first oil outlet;
3-separating the sleeve;
31-preset gap;
32-an annular opening;
33-a second oil outlet;
4-mist supplement net;
5-liquid taking valve;
6-a liquid level meter;
7-a bypass valve;
8-an air outlet pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be a mechanical connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
In the process of oil field exploitation, a worker needs to perform sampling detection on oil in a wellhead Christmas tree at regular time, and a common sampling device is an oil taking cylinder. However, because the sampling liquid taken out from the Christmas tree is in an oil-gas mixed state, the oil and gas are separated in a natural sedimentation mode after the sampling liquid flows into the oil taking barrel, and the separation efficiency is low.
In order to effectively separate oil and gas of sampling liquid, the embodiment of the invention provides a sampling device, which is used for collecting oil in a Christmas tree, so that the liquid part and the gas part of the sampling liquid are effectively separated, the oil-gas separation efficiency is effectively improved, and the sampling speed is further improved.
FIG. 1 is a schematic diagram of a first structure of a sampling device according to an embodiment of the present invention; FIG. 2 is a schematic diagram of a second structure of a sampling device according to an embodiment of the present invention; fig. 3 is a schematic structural diagram of a third sampling device according to an embodiment of the present invention. Referring to fig. 1, the present embodiment provides a sampling device, which includes a sampling tube 1 and an oil pipeline 2; the first end of the oil conveying pipe 2 is provided with an oil conveying port 21, the oil conveying port 21 is used for being connected with a valve of a Christmas tree, the second end of the oil conveying pipe 2 extends into the sampling cylinder 1, and the second end of the oil conveying pipe 2 is arranged in a closed mode; the side wall of the part of the oil pipeline 2 extending into the sampling barrel 1 is provided with a plurality of first oil outlet holes 22. Through the fluid inflow defeated oil pipe 2 with in the production tree, under the pressure effect of oil gas, the oil gas in defeated oil pipe 2 is from first oil outlet 22 blowout to getting in the oil cylinder 1, makes liquid and gas in the oil gas can the alternate segregation under the effect of ejection pressure, and then improves the separation efficiency of oil gas.
Wherein, sampling cylinder 1 is arranged in holding the sample fluid that flows out from the production tree, and the sample fluid carries out oil-gas separation in sampling cylinder 1, and liquid part is collected in sampling cylinder 1, and gas part rises and discharges. The sampling tube 1 can be made of a material such as copper, aluminum, etc. as is known in the art. The sampling tube 1 may have various structures, for example, the sampling tube 1 may be a cylindrical tube, a rectangular parallelepiped tube, or the like, and is not limited herein as long as the oil-gas separation and the liquid collection of the sampled oil liquid can be performed. The sampling tube 1 has a cavity therein, which may be a closed cavity or an open cavity, and is not limited herein.
Wherein, the first end of defeated oil pipe 2 sets up oil delivery port 21, and this oil delivery port 21 communicates with the valve of production tree to during making fluid in the production tree flow into defeated oil pipe 2 through this oil delivery port 21, this first end of defeated oil pipe 2 can set up the outside at sampling tube 1, so that the oil delivery port 21 of this defeated oil pipe 2 and the valve intercommunication of production tree are more convenient. The second end of the oil pipeline 2 extends into the sampling cylinder 1, so that oil and gas separation is carried out on oil liquid in the oil pipeline 2 in the sampling cylinder 1, and the separated liquid is collected in the sampling cylinder 1. In order to effectively separate oil and gas in the oil pipeline 2, the second end of the oil pipeline 2 is sealed, and a plurality of first oil outlet holes 22 are formed in the side wall of the part, extending into the sampling barrel 1, of the oil pipeline 2. Because the diameter of the first oil outlet hole 22 is smaller than the inner diameter of the oil delivery pipe 2, when the oil in the oil delivery pipe 2 is sprayed into the sampling cylinder 1 through the first oil outlet hole 22, the spraying speed of the gas part in the oil is smaller than that of the liquid part, so that the oil and gas are effectively separated; wherein the liquid part flows to the bottom of the withdrawal chimney 1 and the gas part rises and is discharged. In this embodiment, the first oil outlet 22 is arranged, so that when the oil in the oil pipeline 2 is sprayed out from the first oil outlet 22, a speed difference occurs between a gas part and a liquid part, and oil and gas are separated.
Wherein, the oil delivery pipe 2 can be made of metal material. The outer fringe of the oil delivery port 21 of defeated oil pipe 2's first end a week can be provided with the sealing washer to make the connection between oil delivery port 21 and the valve of production tree inseparabler, prevent the waste of oil gas, also avoid the bodily injury that the leakage of oil gas caused operating personnel simultaneously. In addition, a reinforcing rib can be arranged at the oil delivery port 21 to avoid the damage of the oil delivery port 21 caused by the multiple connection of the oil delivery pipe 2 and a valve of the Christmas tree, and further prolong the service life of the oil delivery pipe 2. In addition, but a plurality of first oil outlet 22 evenly distributed is in defeated oil pipe 2's lateral wall a week to guarantee that fluid in defeated oil pipe 2 spouts along lateral wall a week, make fluid when the blowout of first oil outlet 22, the liquid part in the fluid can follow defeated oil pipe 2's lateral wall a week and flow to the bottom of sampling tube 1, and the gas part in the fluid can follow defeated oil pipe 2's lateral wall a week and rise to the top of sampling tube 1, and discharge.
The specific working process of the sampling device of the embodiment is as follows: the sampling cylinder 1 is placed near a valve of the Christmas tree, the second end of the oil conveying pipe 2 extends into the sampling cylinder 1, and the oil conveying port 21 at the first end of the oil conveying pipe 2 is connected to the valve of the Christmas tree, so that the oil conveying pipe 2 is communicated with the Christmas tree. Open the valve, oil gas in the production tree flows into in defeated oil pipe 2, under the pressure effect of oil gas, oil gas downstream in defeated oil pipe 2, and spout to the sampling tube 1 in from a plurality of first oil outlet 22, because the diameter of first oil outlet 22 is less than defeated oil pipe 2's internal diameter, when fluid in defeated oil pipe 2 spouts to the sampling tube 1 in through first oil outlet 22, the blowout velocity of gas portion is less than the blowout velocity of liquid portion in the fluid, gas portion and liquid portion alternate segregation when making oil gas spout through first oil outlet 33, the great liquid portion of density flows to the bottom of sampling tube 1, the less gas portion of density rises to the top of sampling tube 1 and discharges.
Compare in prior art in the sampling liquid directly flows into the sampler barrel, mode through natural sedimentation makes oil gas separate, cause oil-gas separation speed slow, seriously influence sampling efficiency, the sampling device of this embodiment, pass through oil delivery port 21 with the oil gas in the production tree and get into defeated oil pipe 2 in, under the pressure of oil gas effect, oil gas in defeated oil pipe 2 spouts to get in the oil cylinder 1 from a plurality of first oil outlet 22, liquid and gas in the oil gas can alternate segregation under the effect of blowout pressure, the effectual oil-gas separation efficiency who gets the oil device that improves this embodiment, simultaneously because there is the density difference between liquid and the gas in the oil gas, consequently, the liquid part that flows to the bottom of getting the oil cylinder 1 in the oil gas of first oil outlet 22 spun, the gas part rises and discharges, sampling efficiency has further been improved.
Referring to fig. 2, in order to further improve the oil-gas separation efficiency, optionally, the sampling device of this embodiment further includes a separation sleeve 3, the separation sleeve 3 is sleeved on a portion of the oil pipeline 2 extending into the sampling cylinder 1, an end portion of the separation sleeve 3 close to the second end of the oil pipeline 2 is hermetically disposed, a preset gap 31 is formed between an inner wall of the separation sleeve 3 and an outer wall of the oil pipeline 2, and an annular opening 32 is formed between an end portion of the separation sleeve 3 far away from the second end of the oil pipeline 2 and the oil pipeline 2; a plurality of second oil outlet holes 33 are formed in the outer wall of the separation sleeve 3, and the second oil outlet holes 33 and the first oil outlet holes 22 are arranged in a staggered mode. This embodiment establishes separation sleeve 3 on defeated oil pipe 2 stretches into the part in the sampling tube 1, and stagger second oil outlet 33 on the 3 lateral walls of separation sleeve and the position of the first oil outlet 22 on defeated oil pipe 2 lateral wall each other, make fluid in defeated oil pipe 2 follow first oil outlet 22 blowout back, the liquid part of separation fully collides with separation sleeve 3's lateral wall, make the oil and gas of liquid part to separate once more, further improve oil-gas separation efficiency, make the precision and the quality of sample fluid further improve.
In particular, in order to effectively separate the oil gas flowing from the oil pipeline 2 to the sampling cylinder 1, even if the precision of the oil liquid stored in the sampling cylinder 1 is further improved, the separation sleeve 3 is sleeved outside the first oil outlet 22, the end part of the separation sleeve 3 close to the second end of the oil pipeline 2 is arranged in a sealing way, the second end of the separation sleeve 3 far away from the oil pipeline 2 and the outer wall of the oil pipeline 2 form an annular opening 32, namely, the bottom of the separation sleeve 3 is sealed, the top of the separation sleeve 3 is opened, a preset gap 31 with a certain width is required to be arranged between the inner wall of the separation sleeve 3 and the outer wall of the oil pipeline 2, when oil gas in the oil pipeline 2 is sprayed out through the first oil outlet hole 22, the liquid part after oil gas separation can smoothly flow to the bottom of the separation sleeve 3, and the gas part rises to the annular opening 32 through the gap 31, rises to the top of the sampling cylinder 1 from the annular opening 32 and is discharged. The outer wall of the separation sleeve 3 is provided with a plurality of second oil outlet holes 33, and the second oil outlet holes 33 are staggered with the first oil outlet holes 22 arranged on the oil delivery pipe 2. When the oil gas in the oil pipeline 2 is sprayed out from the first oil outlet hole 22, under the action of the spraying pressure, when the oil liquid is sprayed out from the first oil outlet hole 22, the speed of the gas part and the liquid part is different, so that the oil gas is subjected to first gas-liquid separation, then, under the action of the ejection pressure, the liquid part separated for the first time collides with the inner wall of the separation sleeve 3, the gas in the liquid part is separated from the oil liquid again, namely, the oil gas is subjected to secondary separation, wherein the liquid part separated for the second time flows into the separation sleeve 3 under the blockage of the separation sleeve 3, the liquid part in the separation sleeve 3 flows out from the second oil outlet hole 33 opened on the side wall of the separation sleeve 3 along the outer side wall of the separation sleeve 3 along with the continuous rising of the liquid in the separation sleeve 3, and the gas part separated for the second time rises and is discharged through the annular opening 32. The matching arrangement of the oil pipeline 2 and the separation sleeve 3 can quickly realize gas-liquid separation so as to obtain an oil-liquid sample with higher precision.
In the sampling device of the embodiment, oil gas in the Christmas tree enters the oil delivery pipe 2 through the oil delivery port 21, under the pressure action of the oil gas, the oil gas in the oil delivery pipe 2 is sprayed into the oil extraction cylinder 1 from the first oil outlet holes 22, liquid and gas in the oil gas are separated from each other due to different spraying speeds, the oil-gas separation efficiency of the oil extraction device of the embodiment is effectively improved, meanwhile, because density difference exists between the liquid and the gas in the oil gas, the liquid part in the oil gas sprayed from the first oil outlet holes 22 flows to the bottom of the oil extraction cylinder 1, the gas part is lifted and discharged, the sampling efficiency is improved, the separation sleeve 3 is sleeved on the part of the oil delivery pipe 2 extending into the sampling cylinder 1, so that the liquid part separated by the first oil outlet holes 22 collides with the side wall of the separation sleeve 3 again, the second oil-gas separation is realized, and the liquid part separated by the second oil-gas flows into the sampling cylinder 1 through the second oil outlet holes 33, the gas part rises and is discharged, the secondary separation of oil gas is realized in the whole process, the gas-liquid separation effect of the oil gas is effectively improved, and the sampling efficiency is further improved. Wherein, the second oil outlet holes 33 can be uniformly distributed on the outer wall of the separation sleeve 3 to ensure the effective separation of gas and liquid.
In order to facilitate the detachment and installation of the separation sleeve 3, the separation sleeve 3 is detachably sleeved on the part of the oil pipeline 2 extending into the sampling tube 1, so that the separation sleeve 3 and the oil pipeline 2 can be replaced conveniently. The width of the preset gap 31 between the separation sleeve 3 and the oil pipeline 2 can be adjusted according to the sampling amount of the actual oil, and is not limited here.
In order to prevent the oil gas sprayed from the first oil outlet 22 of the oil pipeline 2 from being discharged directly through the top of the sampling cylinder 1 without being effectively separated, the second end of the oil pipeline 2 may be disposed at the bottom of the sampling cylinder 1.
Concretely, the bottom position of sampling tube 1 is directly stretched into to the second end with defeated oil pipe 2, when blowout in the first oil outlet 22 that sets up on the lateral wall of defeated oil pipe 2 of oil gas, the liquid part in the oil gas can directly flow to the bottom of sampling tube 1, the gas part in the oil gas begins to rise from the position that is close to sampling tube 1 bottom, because the bottom to the top of sampling tube 1 has a certain distance, make gas part discharge sampling tube 1 need the dead time, thereby make gas part can obtain further separation in sampling tube 1, avoid the outside of direct discharge sampling tube 1 to cause the waste of fluid.
Oil gas in this embodiment will be the production tree passes through in oil delivery port 21 gets into defeated oil pipe 2, under the pressure effect of oil gas, oil gas in defeated oil pipe 2 is from a plurality of first oil outlet 22 spouts to get in the oil cylinder 1, make liquid and gas in the oil gas realize the separation under the effect of blowout pressure, the effectual oil-gas separation efficiency that improves the oil extraction device of this embodiment, simultaneously with defeated oil pipe 2's second end set up in the bottom of sampling cylinder 1, make the liquid part in the oil gas from first oil outlet 22 spun can directly flow to the bottom of getting oil cylinder 1, and the gas part obtains further buffering in sampling cylinder 1, avoided the gas part to carry the outside of a large amount of liquid direct discharge sampling cylinder 1, further reduced the waste of fluid.
Referring to fig. 3, in order to further ensure effective separation of oil and gas, optionally, the sampling device further comprises a mist supplementing net 4, wherein the mist supplementing net 4 is used for separating liquid in the oil and gas sprayed from the first oil outlet hole 22; the mist supplementing net 4 is arranged in the sampling cylinder 1 and divides the sampling cylinder 1 into an upper cavity and a lower cavity, and the mist supplementing net 4 is positioned above the first oil outlet 22. The liquid part in the gas sprayed out from the first oil outlet 22 is blocked by the mist supplementing net 4, so that the gas and the liquid are effectively separated.
In particular, during the separation process of oil and gas, the separated gas part may contain oil, in order to improve the sampling effect, a mist supplementing net 4 is arranged in the sampling cylinder 1, the mist supplementing net 4 divides the sampling cylinder 1 into an upper cavity and a lower cavity, and the mist supplementing net 4 is fixed above the first oil outlet 22, when in specific work, the oil gas is sprayed out through a first oil outlet 22 arranged on the oil pipeline 2 to separate gas from liquid in the oil gas, the separated gas begins to rise, in the rising process, the gas part passes through the mist supplementing net 4, under the blocking action of the mist supplementing net 4, oil liquid in the gas part collides on the mist supplementing net 4 and is condensed on the mist supplementing net 4, oil drops are formed on the mist supplementing net 4 and drop into the sampling cylinder 1, so that the liquid content in the gas part is reduced, the gas and the liquid in the oil liquid are effectively separated, and the precision and the quality of the oil sample and the gas sample are improved.
The fog supplementing net 4 is arranged in the sampling cylinder 1, so that not only can oil in the gas part separated by the first oil outlet 22 be condensed to reduce the content of liquid in the gas sample, but also oil in the gas part separated by the second oil outlet 33 can be condensed to realize effective separation of gas and liquid. Specifically, when the part of the oil pipeline 2 extending into the sampling cylinder 1 is sleeved with the separation sleeve 3, oil liquid in the oil pipeline 2 is firstly sprayed out from the first oil outlet 33 to perform first gas-liquid separation on the oil liquid, wherein a gas part of the oil liquid after the first separation starts to rise and collides with the mist supplementing net 4, so that liquid of the gas part after the first separation is condensed into oil drops on the mist supplementing net 4 and flows into the sampling cylinder 1; the liquid part separated for the first time collides with the separation sleeve 3, so that gas in the liquid part can be separated, and second oil-gas separation of oil liquid is realized, wherein the gas part subjected to the second oil-gas separation starts to rise, and the liquid in the gas part subjected to the second oil-gas separation is condensed into oil drops on the mist supplementing net 4 and then dropped into the sampling cylinder 1, so that gas-liquid separation of the gas part subjected to the second oil-gas separation is realized; the liquid part after the second oil-gas separation flows into the separation sleeve 3 and flows into the sampling tube 1 from a second oil outlet 33 formed in the side wall of the separation sleeve. The whole process realizes twice gas-liquid separation of the liquid part and twice gas-liquid separation of the gas part, improves the oil-gas separation effect, enables the liquid part in the oil liquid to be extracted to the maximum degree, and further improves the sampling efficiency of the oil liquid.
Sampling device in this embodiment, pass through in oil gas transmission port 21 gets into defeated oil pipe 2 with the oil gas in the production tree, under the pressure effect of oil gas, oil gas in defeated oil pipe 2 is spout to getting in the oil drum 1 from a plurality of first oil outlet 22, under the effect of blowout pressure, because the liquid in the oil gas makes oil gas alternate segregation with gaseous blowout velocity's difference, and mend the setting of fog net 4, make the gas part of separation carry out gas-liquid separation once more at the in-process that rises, thereby make the fluid in the gas part effectively extract, further improve the quality of the precision of sample fluid.
In order to facilitate the detachment and replacement of the mist supplementing net 4, optionally, the mist supplementing net 4 is detachably arranged on the inner wall of the sampling tube 1. Wherein, mend the connected mode between fog net 4 and the sampling tube 1 and can be multiple, for example, be provided with the bellying on the inner wall of sampling tube 1, will mend fog net 4 and place on this bellying, conveniently mend the installation and the dismantlement of fog net 4. The inner wall of the sampling tube 1 can be provided with a clamping groove which is arranged along the circumference of the inner wall of the sampling tube 1, the circumference of the outer edge of the mist supplementing net 4 is provided with an elastic clamping piece, the elastic clamping piece is provided with a convex piece, the elastic clamping piece is matched with the clamping groove on the inner wall of the sampling tube 1, when the sampling tube is installed, the mist supplementing net 4 is arranged in the sampling tube 1, the elastic clamping piece is in a compression state under the blocking of the inner wall of the sampling tube 1, when the elastic clamping piece reaches the clamping groove position of the sampling tube 1, the elastic clamping piece is flicked and clamped into the clamping groove, so that the mist supplementing net 4 is stably connected with the inner wall of the sampling tube 1, when the mist supplementing net needs to be disassembled, the convex piece is poked, the elastic clamping piece shrinks towards the center direction of the mist supplementing net 4, the elastic clamping piece is separated from the clamping groove, then the mist supplementing net 4 is taken out, the disassembly of the mist supplementing net 4 is realized by the matching arrangement of, and then the installation effectiveness of the sampling device of the embodiment is improved.
In order to improve the blocking rate of the mist supplementing net 4 to the rising gas and enable the oil liquid of the gas part to collide with the mist supplementing net 4 to a greater extent, a sealing ring can be arranged between the outer edge of the mist supplementing net 4 and the inner wall of the sampling cylinder 1, and further the situation that the separated gas part discharges from the gap between the mist supplementing net 4 and the sampling cylinder 1 to take away a part of oil liquid and waste of the oil liquid in the sampling process is caused is avoided. Wherein, the sealing ring can be made of rubber and other materials.
In order to take out the oil in the sampling cylinder 1 more conveniently, optionally, the sampling device further comprises a liquid taking valve 5 arranged at the bottom of the sampling cylinder 1, and the oil in the sampling cylinder 1 flows out of the sampling cylinder 1 by opening the liquid taking valve 5 to perform subsequent detection of the oil.
Specifically, in this embodiment, after the oil gas in the sampling cylinder 1 is separated, the liquid part in the oil gas will be stored in the sampling cylinder 1, and in order to take the oil out of the sampling cylinder 1, a liquid taking valve 5 may be disposed at the bottom of the sampling cylinder 1. When taking a sample, will get liquid valve 5 and close, when needs take out fluid, can directly open getting liquid valve 5, make the fluid outflow sampling bucket 1 in the sampling tube 1 for get liquid process convenient and fast more, and then improved work efficiency.
Wherein, this liquid valve 5 except can set up the bottom at sampler barrel 1, still can set up in the lateral wall bottom of sampler barrel 1, as long as can guarantee the outflow that fluid in the sampler barrel 1 can be smooth.
In this embodiment, pass through in the oil gas of oil production tree gets into defeated oil pipe 2 through oil delivery port 21, under the pressure effect of oil gas, oil gas in the defeated oil pipe 2 is from a plurality of first oil outlet 22 blowout to getting in the oil cylinder 1, liquid and gas in the oil gas can alternate segregation under the effect of blowout pressure, the effectual oil-gas separation efficiency who improves the oil extraction device of this embodiment, simultaneously because there is density difference between liquid and the gas in the oil gas, consequently, the liquid part from in the oil gas of first oil outlet 22 blowout flows to the bottom of getting oil cylinder 1, the gas part rises and discharges, the sampling efficiency has been improved, and set up liquid valve 5 in the bottom of sampling cylinder 1, make taking out of the fluid in the sampling cylinder 1 convenient and fast more, further improved work efficiency.
For the liquid level height of the fluid in the effectual monitoring sampling barrel 1, the sampling device of this embodiment still includes level gauge 6 that sets up on the lateral wall of sampling barrel 1, through real-time supervision level gauge 6, carries out real-time supervision to the liquid level height of fluid in the sampling barrel 1.
Specifically, general sampling barrel 1 is made by the metal material, and operating personnel can't externally observe the liquid level height of fluid in sampling barrel 1, causes sample fluid not enough like this easily, perhaps fluid is too big to make the first oil outlet 22 of seting up on 2 lateral walls of defeated oil pipe submerge in fluid for the unable normal separation of oil gas leads to the gas in the fluid too big and influence fluid quality, thereby seriously influences sampling efficiency. Therefore, for the liquid level of fluid in convenient real-time supervision sampling barrel 1, can be provided with level gauge 6 on the lateral wall of sampling barrel 1, through this level gauge 6 of real-time supervision, can directly monitor the liquid level of fluid in the sampling barrel 1, make things convenient for the sampling personnel to read liquid level information, and then prevented the emergence of above-mentioned condition. In order to facilitate the use of the liquid level meter 6, a bypass valve 7 is provided on the side wall of the sampling tube 1, and the liquid level meter 6 is connected to the bypass valve 7. When the liquid level information of the oil in the sampling cylinder 1 needs to be known, the bypass valve 7 can be opened to enable the oil to flow into the liquid level meter 6, and the liquid level height of the oil in the sampling cylinder 1 can be known by observing the liquid level height of the oil in the liquid level meter 6; when the liquid level meter 6 is not needed, the bypass valve 7 can be directly closed, so that the connection and the sealing between the sampling cylinder 1 and the liquid level meter 6 are more convenient.
In order to clean up dirt in the sampling tube 1, optionally, in the sampling device of the present embodiment, the sampling tube 1 includes a tube body 11 and a tube cover 12; wherein, the cylinder cover 12 is covered on the top of the cylinder body 11, and the oil delivery pipe 2 is arranged and fixed on the cylinder cover 12 in a penetrating way.
Specifically, set up sampling cylinder 1 into barrel 11 and cover 12 of mutually supporting, the top of barrel 11 has the opening, the open end of barrel 11 is located to cover 12 detachable, defeated oil pipe 2 wears to establish and is fixed in on cover 12 to make defeated oil pipe 2's second end stretch into inside barrel 11, spout the inside to barrel 11 through the fluid in first oil outlet 22 will defeated oil pipe 2, and realize the separation of gas-liquid under the effect of spraying pressure. When the sampling tube 1 needs to be cleaned, the tube body 11 and the tube cover 12 of the sampling tube 1 can be mutually detached, and then dirt in the sampling tube 1 is cleaned, so that the cleaning process is more convenient; after cleaning, the cylinder cover 12 is reinstalled at the top opening end of the cylinder body 11, and the oil delivery pipe 2 is inserted into the cylinder cover 12 to facilitate sampling of the sampling cylinder 1.
Wherein, have multiple connected mode between barrel 11 and the cover 12, for example, can adopt the screw thread to connect between barrel 11 and the cover 12, and the screw thread connected mode has not only realized the convenient dismantlement between cover 12 and the barrel 11, has also guaranteed the connection compactness between barrel 11 and the cover 12. Still can fix through buckle spare between barrel 11 and the cover 12, it is specific, this buckle spare is including setting up in the snap ring of the outer wall both sides of cover 12 and the cassette of setting on the top outer wall of barrel 11, during concrete installation, locates the top of barrel 11 with cover 12 lid, then establishes the snap ring cover on cover 12 on the cassette that sets up on barrel 11, realizes the stable connection between cover 12 and the barrel 11.
Further, an air outlet 13 may be provided on the lid 12 so that a portion of the gas separated from the sampling cylinder 1 rises to the top of the cylinder 11 and is discharged from the air outlet 13 on the lid 12.
Further, in order to avoid that the gas separated from the sampling tube 1 is accidentally sucked by the operator when being discharged through the gas outlet 13, the sampling device of the embodiment further includes a telescopic gas outlet tube 8, wherein the gas outlet tube 8 is communicated with the gas outlet 13 formed in the tube cover 12.
Concretely, in oil gas in the production tree passes through oil delivery port 21 and gets into defeated oil pipe 2, under the pressure effect of oil gas, oil gas in the defeated oil pipe 2 is spout to barrel 11 in from a plurality of first oil outlet 22, because the blowout speed difference of liquid and gas makes oil gas alternate segregation in the oil gas, the great liquid part of density flows to the bottom of barrel 11 from first oil outlet 22 blowout, the less gas part of density rises to in getting into the gas outlet 13 of seting up on the cover 12, further discharge the outside of sampling tube 1 through outlet duct 8. Wherein, set outlet duct 8 to retractable structure for outlet duct 8's export height can be adjusted according to sample personnel's head height, when sample personnel take a sample, can adjust outlet duct 8's export height to being higher than sample personnel's head, can avoid being inhaled by sample personnel from outlet duct 8 exhaust natural gas and toxic gas like this, has improved the security of sample in-process. The sampling device of this embodiment has not only improved the separation efficiency of oil gas, and the setting up of telescopic outlet duct 8 also makes sampling device's security performance can improve, has further guaranteed sample personnel's personal safety.
Optionally, this outlet duct 8 can be the hose for outlet duct 8 plays effectual guide effect at the gas part in exhaust in-process, is inhaled by the personnel of taking a sample for the poisonous gas and the natural gas that prevent the gas part, can put 8's of outlet duct exit end to the position of keeping away from operating personnel, has further avoided the poisonous gas to the injury of taking a sample personnel with the natural gas.
Wherein, the air outlet pipe 8 is connected with the air outlet 13 in a sealing way. For example, the gas outlet pipe 8 can be directly inserted into the gas outlet 13, and a sealing ring is arranged between the gas outlet pipe 8 and the gas outlet 13, so that the gas separated from the sampling cylinder 1 is prevented from being discharged from a gap between the gas outlet 13 and the gas outlet pipe 8, and the safety performance of the sampling device of the embodiment is further ensured.
The embodiment of the invention provides a sampling device, which comprises a sampling cylinder and an oil pipeline; the sampling tube is arranged in the oil pipeline, the sampling tube is arranged in the sampling tube, and the oil pipeline is arranged in the sampling tube in a sealing mode; a plurality of first oil outlet holes are formed in the side wall of the part, extending into the sampling cylinder, of the oil delivery pipe. According to the sampling device, oil gas in the Christmas tree enters the oil delivery pipe through the oil delivery port, under the pressure action of the oil gas, the oil gas in the oil delivery pipe is sprayed out of the first oil outlet holes into the oil taking cylinder, and due to the fact that the spraying speeds of the liquid part and the gas part are different when the oil gas is sprayed out of the first oil outlet holes, the oil gas is separated quickly, the oil-gas separation efficiency of the oil taking device is effectively improved, and meanwhile due to the fact that density difference exists between the liquid and the gas in the oil gas, the liquid part in the oil gas sprayed out of the first oil outlet holes flows to the bottom of the oil taking cylinder, the gas part is discharged upwards, and the sampling efficiency is improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A sampling device is characterized by comprising a sampling cylinder and an oil pipeline;
the sampling barrel is arranged in the oil pipeline, and the oil pipeline is arranged in the sampling barrel;
the oil pipeline stretches into a plurality of first oil outlet holes are formed in the side wall of the part in the sampling cylinder.
2. The sampling device according to claim 1, further comprising a separation sleeve, wherein the separation sleeve is sleeved on a part of the oil pipeline extending into the sampling cylinder, the end part of the separation sleeve close to the second end of the oil pipeline is arranged in a sealing manner, a preset gap is formed between the inner wall of the separation sleeve and the outer wall of the oil pipeline, and the end part of the separation sleeve far away from the second end of the oil pipeline and the oil pipeline form an annular opening;
a plurality of second oil outlets are formed in the outer wall of the separation sleeve, and the second oil outlets and the first oil outlets are arranged in a staggered mode.
3. A sampling device according to claim 2 wherein the split sleeve is removably mounted on the oil delivery tube.
4. The sampling device of claim 1, wherein the second end of the oil delivery tube is disposed at a bottom of the sampling barrel.
5. The sampling device of claim 1, further comprising a mist replenishing net for separating liquid in the oil gas ejected from the first oil outlet; the mist supplementing net is arranged in the sampling cylinder and divides the sampling cylinder into an upper cavity and a lower cavity, and the mist supplementing net is located above the first oil outlet.
6. The sampling device of claim 5, wherein the mist replenishing net is detachably arranged on the inner wall of the sampling tube.
7. The sampling device of any one of claims 1-6, further comprising a take-off valve disposed at the bottom of the sampling cylinder.
8. The sampling device of any one of claims 1-6, further comprising a level gauge disposed on a sidewall of the sampling barrel.
9. The sampling device of any one of claims 1-6, wherein the sampling tube comprises a barrel and a barrel cap;
the oil delivery pipe is arranged on the barrel in a penetrating mode and fixed on the barrel cover.
10. The sampling device of claim 9, further comprising a retractable air outlet tube, wherein the air outlet tube is communicated with an air outlet formed in the cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811553796.8A CN111335889A (en) | 2018-12-19 | 2018-12-19 | Sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811553796.8A CN111335889A (en) | 2018-12-19 | 2018-12-19 | Sampling device |
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| CN111335889A true CN111335889A (en) | 2020-06-26 |
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| CN201811553796.8A Pending CN111335889A (en) | 2018-12-19 | 2018-12-19 | Sampling device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202788833U (en) * | 2012-08-28 | 2013-03-13 | 中国石油化工股份有限公司 | No-clean rapid separating sampler for wellhead |
| AU2013220167A1 (en) * | 2012-02-15 | 2014-09-18 | Enpro Subsea Limited | Method and apparatus for oil and gas operations |
| CN204175298U (en) * | 2014-10-13 | 2015-02-25 | 中国石油天然气股份有限公司 | Oil sample collecting device |
| CN104790946A (en) * | 2015-03-12 | 2015-07-22 | 中国石油天然气股份有限公司 | Oil well mouth sampling device |
| CN204609875U (en) * | 2015-02-10 | 2015-09-02 | 中国海洋石油总公司 | Oil/gas Well Wellhead sampler |
| CN207131389U (en) * | 2017-07-18 | 2018-03-23 | 中国石油化工股份有限公司 | Separate type Samper for oil well |
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2018
- 2018-12-19 CN CN201811553796.8A patent/CN111335889A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2013220167A1 (en) * | 2012-02-15 | 2014-09-18 | Enpro Subsea Limited | Method and apparatus for oil and gas operations |
| CN202788833U (en) * | 2012-08-28 | 2013-03-13 | 中国石油化工股份有限公司 | No-clean rapid separating sampler for wellhead |
| CN204175298U (en) * | 2014-10-13 | 2015-02-25 | 中国石油天然气股份有限公司 | Oil sample collecting device |
| CN204609875U (en) * | 2015-02-10 | 2015-09-02 | 中国海洋石油总公司 | Oil/gas Well Wellhead sampler |
| CN104790946A (en) * | 2015-03-12 | 2015-07-22 | 中国石油天然气股份有限公司 | Oil well mouth sampling device |
| CN207131389U (en) * | 2017-07-18 | 2018-03-23 | 中国石油化工股份有限公司 | Separate type Samper for oil well |
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Application publication date: 20200626 |
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