CN110441470B - Gas overflow detection device and wax scraping equipment - Google Patents
Gas overflow detection device and wax scraping equipment Download PDFInfo
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- CN110441470B CN110441470B CN201810419078.5A CN201810419078A CN110441470B CN 110441470 B CN110441470 B CN 110441470B CN 201810419078 A CN201810419078 A CN 201810419078A CN 110441470 B CN110441470 B CN 110441470B
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- 238000001514 detection method Methods 0.000 title claims abstract description 41
- 238000007790 scraping Methods 0.000 title claims abstract description 23
- 239000007789 gas Substances 0.000 claims abstract description 195
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims abstract description 63
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims abstract description 63
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 230000003009 desulfurizing effect Effects 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 22
- 230000000694 effects Effects 0.000 abstract description 17
- 239000003129 oil well Substances 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 7
- 230000008859 change Effects 0.000 abstract description 2
- 239000012188 paraffin wax Substances 0.000 description 20
- 239000001993 wax Substances 0.000 description 19
- 229910001220 stainless steel Inorganic materials 0.000 description 13
- 239000010935 stainless steel Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 10
- 239000002184 metal Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000007787 solid Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 239000012530 fluid Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 231100000614 poison Toxicity 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007096 poisonous effect Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000010146 3D printing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910000939 field's metal Inorganic materials 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/02—Scrapers specially adapted therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0044—Sulphides, e.g. H2S
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/14—Toxic gas alarms
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Geochemistry & Mineralogy (AREA)
- Emergency Management (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides a gas overflow detection device. Comprises a guide cover and a gas detector; the gas detector is positioned at the outer side of the air guide sleeve, the air guide sleeve is arranged on the lubricator, and the top end area of the lubricator is covered to contain the gas overflowed from the top end of the lubricator; the top end opening of kuppe to the top of uncovered lubricator, the outer wall lower surface of kuppe is protruding downwards, so that form pressure differential between the air current that flows through the top of kuppe and the air current that flows through the kuppe outer wall lower surface below, offered the through-hole of the inside and outside both sides of intercommunication kuppe on the kuppe, the through-hole is relative with the gas detector for guide the gas in the kuppe to the gas detector under the effect of pressure differential. The device has the advantages that the function of guiding, detecting and timely alarming hydrogen sulfide gas overflowed from the sealing position of the lubricator in the wax scraping process of the oil well is realized, so that even if the device is influenced by the change of the wind direction, the hydrogen sulfide detector can still alarm the overflow condition of hydrogen sulfide at the lubricator.
Description
Technical Field
The invention relates to the technical field of petroleum paraffin scraping, in particular to a gas overflow detection device and paraffin scraping equipment.
Background
For crude oil in which a certain amount of paraffin is dissolved, a so-called wax deposition phenomenon occurs with a decrease in temperature and pressure and precipitation of gas during the production process. Wax precipitation can block the oil production layer, reduce the oil well yield, and increase the oil well load at the same time, thereby causing production accidents. The existing paraffin removal method mainly adopts mechanical paraffin removal, thermal washing paraffin removal, chemical paraffin removal and the like, wherein the mechanical paraffin removal refers to a paraffin removal method that a special tool is used for scraping the paraffin on the wall of the oil removal pipe and the paraffin is brought to the ground by liquid flow. The paraffin removal tool adopted in the self-injection well mainly comprises a paraffin scraping sheet, paraffin scraping equipment enters the oil well by means of a lubricator, and the top of the lubricator is locked by means of rubber to play a role in sealing, so that the overflow of fluid in the well is prevented. Because the oil field contains hydrogen sulfide gas with different degrees, the hydrogen sulfide gas is extremely toxic, can harm human health, strongly corrode oil field metal equipment, and can generate explosion when the hydrogen sulfide gas is mixed with air to reach a certain proportion, and has great potential safety hazard, the problem of whether hydrogen sulfide overflows at the sealing position of the blowout prevention pipe is also required to be closely concerned in the oil well wax scraping construction process.
In areas with high sulfur content, hydrogen sulfide overflow is usually detected by a hydrogen sulfide detector, and the conventional detection method is to directly fix the hydrogen sulfide detector at a lubricator port for detection.
However, in actual operation, due to the influence of the change of the wind direction, the hydrogen sulfide detector is fixed at a certain position, so that the situation that hydrogen sulfide overflows at the lubricator is not easy to alarm in time.
Disclosure of Invention
The invention provides a gas overflow detection device and wax scraping equipment, which can guide gas in a guide cover to a gas detector when hydrogen sulfide gas overflows at a lubricator.
The embodiment of the invention provides a gas overflow detection device and wax scraping equipment, which comprises a guide cover and a gas detector;
the gas detector is positioned at the outer side of the air guide sleeve, the air guide sleeve is arranged on the lubricator, and the top end area of the lubricator is covered to contain the gas overflowed from the top end of the lubricator;
the top end opening of kuppe to the top of uncovered lubricator, the outer wall lower surface of kuppe is protruding downwards, so that form pressure differential between the air current that flows through the top of kuppe and the air current that flows through the kuppe outer wall lower surface below, offered the through-hole of the inside and outside both sides of intercommunication kuppe on the kuppe, the through-hole is relative with the gas detector for guide the gas in the kuppe to the gas detector under the effect of pressure differential.
According to the gas overflow detection device, the gas detector is arranged on the outer side of the air guide sleeve, the air guide sleeve is arranged on the lubricator, and the top end area of the lubricator is covered to contain gas overflowed from the top end of the lubricator; the top end opening of kuppe to the top of uncovered lubricator, the outer wall lower surface of kuppe is protruding downwards, so that form pressure differential between the air current that flows through the top of kuppe and the air current that flows through the kuppe outer wall lower surface below, set up the through-hole of the inside and outside both sides of intercommunication kuppe on the kuppe, the through-hole is relative with the gas detector for guide the gaseous in the kuppe to the gas detector under the effect of pressure differential, realized carrying out the water conservancy diversion to the hydrogen sulfide gas that lubricator sealing place overflowed in the oil well wax scraping work progress and detect and in time report to the police, thereby guarantee even receive the influence that the wind direction changes, the hydrogen sulfide detector still can be without mistake report to the excessive condition of hydrogen sulfide that takes place in lubricator department.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic diagram of a gas overflow detection device according to an embodiment of the invention;
Fig. 2 is a schematic flow guiding diagram of a gas overflow detecting device according to a first embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating a gas flow of a gas overflow detection device according to an embodiment of the invention when no wind or weak wind is present;
FIG. 4 is a schematic diagram of a gas flow of a gas overflow detection device according to an embodiment of the invention when wind power is high;
Fig. 5 is a schematic structural diagram of a gas overflow detecting device according to a second embodiment of the present invention.
Reference numerals illustrate:
1: lubricator;
2: a guide cover;
21: a top end;
22: the lower surface of the outer wall;
3: a gas detector;
4: a through hole;
5: an annular mounting portion;
51: an elastic card;
6: a fixed bracket;
61: an elastic clamping piece;
7: a fixing ring;
8: a connection bracket;
9: stainless steel net frame.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Fig. 1 is a schematic structural diagram of a gas overflow detecting device according to a first embodiment of the present invention, fig. 2 is a schematic flow guiding principle diagram of the gas overflow detecting device according to the first embodiment of the present invention, fig. 3 is a schematic flow diagram of the gas overflow detecting device according to the first embodiment of the present invention when no wind or weak wind is present, and fig. 4 is a schematic flow diagram of the gas overflow detecting device according to the first embodiment of the present invention when wind is strong. As shown in fig. 1-4, the gas overflow detection device provided in this embodiment is applied to a lubricator 1 of a wax scraping device, and specifically, as shown in fig. 1, includes a flow guide cover 2 and a gas detector 3, wherein,
The gas detector 3 is located the kuppe 2 outside, and kuppe 2 sets up on lubricator 1, and cover the top region of lubricator 1, generally in the mechanical paraffin removal in-process, scrape wax equipment and rely on lubricator 1 to get into inside the oil well, lubricator 1 top relies on rubber to pack into the steel wire and play sealed effect, in order to detect sealed effect's good or bad, prevent because sealed effect's poisonous gas hydrogen sulfide's excessive problem that causes, establish the sealed mouth department in lubricator 1 top region with kuppe 2 in this embodiment to hold the gas that lubricator 1 top sealed mouth department overflowed.
The top 21 of kuppe 2 is opened to open the top of lubricator 1, guarantees that the air of lubricator 1 sealing mouth department is circulated, and the outer wall lower surface of kuppe 2 is protruding downwards, so that form pressure differential between the air current that flows through the opening top and the air current that flows through kuppe 2 outer wall lower surface 22 below, kuppe 2 has offered the through-hole 4 of the inside and outside both sides of intercommunication kuppe 2, and through-hole 4 is relative with gas detector 3 for with the gas in the kuppe 2 under the effect of pressure differential guide to gas detector 3.
The flow guiding principle of the flow guiding cover 2 in the embodiment is based on two fluid mechanics theorem: continuity theorem and bernoulli theorem:
The continuity principle describes the relationship between the flow velocity and the channel sectional area when the fluid flows through channels with different sections, and the flow velocity is small at the place with large channel sectional area and large at the place with small channel sectional area. As shown in fig. 2, the flow guide cover 2 in the present embodiment is placed in a channel, so that distances L1 and L2 between the top end 21 of the flow guide cover 2 and the inner wall of the channel are equal, so that the flow rate of the gas f1 flowing through the top end 21 of the flow guide cover 2 is smaller than the flow rate of the gas f2 flowing through the lower surface 22 of the outer wall of the flow guide cover 2 because the lower surface 22 of the outer wall of the flow guide cover 2 protrudes downward, and the flow cross-sectional area S1 of the gas f1 flowing through the top end 21 of the flow guide cover 2 is larger than the flow cross-sectional area S2 of the gas f2 flowing through the lower surface 22 of the outer wall of the flow guide cover 2.
In combination with the Bernoulli theorem, the flow velocity is increased and the static pressure of the fluid is reduced as known from the Bernoulli theorem when the incompressible ideal fluid flows along the flow pipe at steady state; conversely, the flow velocity decreases and the hydrostatic pressure of the fluid will increase. Thus, the pressure of the gas f1 flowing over the top end 21 of the air guide sleeve 2 is greater than the pressure of the gas f2 flowing under the lower surface 22 of the outer wall of the air guide sleeve 2, so that a pressure difference is formed between the gas flowing over the top end 21 of the air guide sleeve 2 and the gas flowing under the lower surface 22 of the outer wall of the air guide sleeve 2, and under the effect of the pressure difference, the gas in the air guide sleeve 2 is sucked into the gas detector 3 opposite to the through hole 4 through the through hole 4, and d in fig. 2 indicates the direction of suction.
Further, since the density of the hydrogen sulfide is greater than that of the air, the hydrogen sulfide overflowed from the sealing opening of the lubricator 1 automatically sinks into the pod 2, and the hydrogen sulfide gas is sucked into the gas detector 3 opposite to the through hole 4 by the pressure difference between the up-and-down gas flow of the pod 2.
The gas overflow detection device provided in the first embodiment has two working conditions: conditions when no wind or weak wind is present and the wind is strong:
when no wind or weak wind exists, as shown in fig. 3, the hydrogen sulfide gas automatically escapes toward the inside of the pod 2 due to its own weight, and finally flows from the through hole 4 to the gas detector 3.
When the wind force is large, as shown in fig. 4, the hydrogen sulfide gas is sucked into the gas detector 3 under the action of the flow guiding principle of the air guide cover 2, and even if the wind direction is not towards the position of the gas detector 3, the hydrogen sulfide gas firstly enters the air guide cover 2 under the action of the pressure difference, and finally flows to the gas detector 3 from the through hole 4.
It can be seen that, no matter the gas overflow detection device provided in this embodiment is in no wind or weak wind condition or when wind force is great, hydrogen sulfide gas can all flow to gas detector 3 from the through-hole 4 of kuppe 2, no longer receive the influence of wind direction, greatly improved the degree of accuracy that detects moreover, prevented that even poisonous gas overflows and still can not detect the condition emergence that causes because of the influence of wind direction, can detect the hydrogen sulfide overflow condition of lubricator 1 department in the paraffin removal test operation very first time, improved the operation security.
It should be noted that, the gas overflow detection device provided in this embodiment not only can be used in the detection of hydrogen sulfide gas overflow at the lubricator in the paraffin removal operation of the oil well, but also can be used for detecting whether there is specific gas overflow at the sealing port of other sealing devices for testing the sealing effect, and furthermore, the gas overflow detection device provided in this embodiment can also be applied to the diversion of the opening equipment overflow gas, so that the overflow gas flows to the designated direction, the subsequent treatment is convenient, and the device has a certain hint and helps the operation for the treatment of atmospheric pollution.
Alternatively, in this embodiment, to ensure that air flowing over the pod 2 is not blocked from any direction, the edge of the opening of the top end 21 of the pod 2 is at the same level.
Alternatively, based on the above embodiment, in this embodiment, the lower surface 22 of the outer wall of the air guide sleeve is hemispherical or elliptic, and the processing is facilitated by selecting this shape, and the gas overflow detecting device provided in this embodiment may also be other downward convex streamline structures, so long as the requirement that the lower surface 22 of the outer wall of the air guide sleeve 2 protrudes downward is met.
Optionally, the thickness of the air guide sleeve 2 can be any thickness, and can be selected according to practical situations, and the selection range of the material of the air guide sleeve 2 is also larger, so long as the selected material is easy to process and is not easy to be corroded by overflowed gas.
Furthermore, on the basis of the above embodiment, in this embodiment, the bottom end opening of the air guide sleeve 2 is connected with an annular mounting portion 5, and the connection manner is a sealing connection, so that the air flowing into the air guide sleeve 2 is ensured not to flow out from the connection position between the bottom end opening of the air guide sleeve 2 and the annular mounting portion 5, so as to achieve the purpose that the air guide sleeve 2 guides the air in a specified direction, specifically, the air guide sleeve 2 can be integrally formed with the annular mounting portion 5, and can also be sealed and connected by welding or other manners.
When the dome 2 and the annular mounting portion 5 are integrally formed, the dome may be formed by integrally forming, for example, plastic or other fusible materials through a mold, or may be formed by using a rapid forming technology such as a 3D printing technology, or may be formed by punching or bending a whole thin metal plate into a sheet metal part by using a metal sheet metal process.
Alternatively, the bottom opening of the pod 2 may be connected to the top end of the annular mounting portion 5, or may be connected to any position from the top end to the middle of the annular mounting portion 5.
When the water vapor contained in the gas to be detected is more, the bottom end opening of the air guide sleeve 2 is selected to be connected with one position from the top end of the annular installation part 5 to the middle part, a containing groove can be formed at the bottom end of the inside of the air guide sleeve 2, so that the water vapor and other liquids scattered into the air guide sleeve 2 are conveniently collected, the liquid is prevented from seeping into the connection part of the annular installation part 5 and the lubricator 2, the service life of the equipment is influenced, the air tightness is damaged, and in the embodiment, the connection mode that the bottom end opening of the air guide sleeve 2 is connected with the top end of the annular installation part 5 is selected.
On the basis of the above embodiment, in this embodiment, the annular mounting portion 5 is sleeved on the outer side of the lubricator 1, the inner edge of the annular mounting portion 5 is in contact with the outer wall of the lubricator 1, and the inner edge of the annular mounting portion 5 can conform to the radian of the outer circumferential surface of the lubricator 1, so that the annular mounting portion 5 can be tightly attached to the outer circumferential surface of the lubricator 1.
Optionally, in order to ensure the tightness of the fitting, there may be other accessories or designs that assist the fitting between the inner edge of the annular mounting portion 5 and the outer circumferential surface of the lubricator 1, and in this embodiment, the inner edge of the annular mounting portion 5 is a rubber sealing layer.
In order to fix the annular mounting part 5 on the lubricator 1, a threaded opening may be formed in the annular mounting part 5, the annular mounting part 5 may be screwed down by bolts, or 1-2 bolts may be provided on the outer peripheral side of the annular mounting part 5 in a manner similar to a pipe connector, and after the annular mounting part 5 is sleeved on the lubricator 1, the annular mounting part 5 may be fixed on the lubricator 1 by only screwing down the bolts on the sides.
The gas overflow detection device that this embodiment provided, still include fixed bolster 6, fixed bolster 6 includes solid fixed ring 7 and connecting bracket 8, gu fixed ring 7 cover is established on lubricator 1, connecting bracket 8's one end is connected with solid fixed ring 7, the other end is used for setting up gas detector 3, gu fixed ring 7 fixes the fixed mode on lubricator 1 and the fixed mode of annular installation department 5 fixing on lubricator 1 the same, can open the screw thread mouth on gu fixed ring 7, screw up gu fixed ring 7 through the bolt, also can adopt the mode similar to the pipe connection ware, gu fixed ring 7's peripheral side is provided with the bolt, after gu fixed ring 7 cover is established in the position of appointed on lubricator 1, only need screw up the side bolt can fix gu fixed ring 7 on lubricator 1.
The connection between the fixing ring 7 and the connection bracket 8 may be selected in various forms as long as the connection between the fixing ring 7 and the connection bracket 8 is ensured to be reliable. For example: the fixing ring 7 and the connecting bracket 8 of the fixing bracket 6 can be fixedly connected, and the fixing ring 7 and the connecting bracket 8 can also be detachably connected.
When the fixing ring 7 and the connecting bracket 8 are fixedly connected, the fixing ring can be manufactured by adopting a welding mode or an integrated forming mode.
The fixed ring 7 and the connecting bracket 8 can be detachably connected, so that when the fixed bracket 6 is installed on the lubricator 1, the connecting bracket 8 is installed on the fixed ring 7 after the fixed ring 7 is fixed, and the installer can easily and conveniently install the device, and the device is convenient to take down after the test is completed. Meanwhile, if the single fixing ring 7 or the connecting bracket 8 is damaged, only the failed part can be replaced, and other parts can be reserved, so that the maintenance cost of the fixing bracket 6 can be reduced.
When the fixing ring 7 of the fixing bracket 6 and the connecting bracket 8 are detachably connected, a plurality of fixing modes such as threaded connection or snap connection can be adopted between the fixing ring 7 and one end of the connecting bracket 8.
When the one end of solid fixed ring 7 and connecting bracket 8 is threaded connection, can be provided with two at least first screw holes on the solid fixed ring 7, the one end both sides of connecting bracket 8 can be provided with the tab with solid fixed ring 7 peripheral looks adaptation, set up the second screw hole with first screw hole matched with position on the tab, the number of second screw hole is the same with the number of first screw hole, screw down the tab on the connecting bracket 8 on solid fixed ring 7 through the screw, just so can fix connecting bracket 8 on solid fixed ring 7.
The fixing ring 7 and the connecting bracket 8 can also be connected by adopting a buckle, and buckles which can be mutually buckled are respectively arranged at one ends of the fixing ring 7 and the connecting bracket 8, so that the fixing ring 7 and the connecting bracket 8 can be quickly installed and quickly disassembled.
The connection bracket 8 may be formed in various structures, for example, the cross section of the connection bracket 8 may be formed in a rectangular shape or a circular shape, and may be selected according to the connection manner adopted between the fixing ring 7 and the connection bracket 8.
According to the gas overflow detection device provided by the embodiment, the other end of the connecting bracket 8 is used for arranging the gas detector 3, the device for arranging the gas detector 3 is of a barreled structure provided with the double-layer stainless steel net frame 9, the stainless steel net frame 9 on the upper layer is used for placing the gas detector 3, and the stainless steel net frame 9 on the lower layer is used for placing the gas filtering equipment, so that after gas to be detected flows out of the through hole 4, the gas detector 3 is used for detecting substances to be detected in the gas, and then the gas filtering equipment is used for decomposing substances to be processed in the gas, such as toxic substances, so that the substances are prevented from being diffused into the atmosphere to cause harm.
Optionally, the other end of the connection bracket 8 may be connected to the stainless steel mesh frame 9 at the lower layer, or may be connected to the outer side wall of the barrel structure, and both connection modes may be selected in various forms, so long as the connection between the device provided with the gas detector 3 and the connection bracket 8 is ensured to be reliable.
In this embodiment, the gas detector 3 is a hydrogen sulfide detector, and an iron oxide desulfurizing agent is provided below the hydrogen sulfide detector. Thus, the hydrogen sulfide detector can detect whether the gas flowing out of the through hole 4 of the air guide sleeve 2 contains hydrogen sulfide gas, if so, the alarm is used for alarming to prompt staff that the hydrogen sulfide gas overflows, the detected gas can flow to the iron oxide desulfurizing agent below through the stainless steel net frame 9 below the gas detector 3 to carry out decomposition desulfurization treatment on the hydrogen sulfide gas, and finally, the gas is discharged into the air, so that the pollution of the hydrogen sulfide gas to the air is reduced.
Optionally, the iron oxide desulfurizing agent is packaged by a ventilation box or a ventilation cloth bag and then placed on a stainless steel net frame 9. And checking whether the ferric oxide desulfurizing agent turns black or not when the hydrogen sulfide detector alarms each time, and continuously using the desulfurizing agent after turning yellow in a sun-drying mode.
The gas overflow detection device is used for detecting the overflow of the hydrogen sulfide gas at the lubricator, and is characterized in that the gas detector is arranged outside the air guide sleeve, the air guide sleeve is arranged on the lubricator, and the top end area of the lubricator is covered to contain the overflow gas at the top end of the lubricator; the top end opening of kuppe to the top of uncovered lubricator, the outer wall lower surface of kuppe is protruding downwards, so that form pressure differential between the air current that flows through the top of kuppe and the air current that flows through the kuppe outer wall lower surface below, set up the through-hole of the inside and outside both sides of intercommunication kuppe on the kuppe, the through-hole is relative with the gas detector for guide the gaseous in the kuppe to the gas detector under the effect of pressure differential, realized carrying out the water conservancy diversion to the hydrogen sulfide gas that lubricator sealing place overflowed in the oil well wax scraping work progress and detect and in time report to the police, thereby guarantee even receive the influence that the wind direction changes, the hydrogen sulfide detector still can be right in time report to the excessive condition of hydrogen sulfide that lubricator department took place.
Example two
Fig. 5 is a schematic structural diagram of a gas overflow detecting device according to a second embodiment of the present invention. The gas overflow detection device provided by the embodiment is applied to a lubricator 1 of wax scraping equipment, and specifically comprises a guide cover 2 and a gas detector 3 as shown in fig. 5, wherein,
The gas detector 3 is located the kuppe 2 outside, and kuppe 2 sets up on lubricator 1, and cover the top region of lubricator 1, generally in the mechanical paraffin removal in-process, scrape wax equipment and rely on lubricator 1 to get into inside the oil well, lubricator 1 top relies on rubber to pack into the steel wire and play sealed effect, in order to detect sealed effect's good or bad, prevent because sealed effect's poisonous gas hydrogen sulfide's excessive problem that causes, establish the sealed mouth department in lubricator 1 top region with kuppe 2 in this embodiment to hold the gas that lubricator 1 top sealed mouth department overflowed.
The upper end opening of kuppe 2 to the top of uncovered lubricator 1 guarantees that the air of lubricator 1 sealing mouth department is the circulation, and the outer wall lower surface of kuppe 2 is protruding downwards, so that form pressure differential between the air current that flows through the opening top and the air current that flows through kuppe 2 outer wall below, kuppe 2 has offered the through-hole 4 of the inside and outside both sides of intercommunication kuppe 2, and through-hole 4 is relative with gas detector 3 for with the gaseous guide to gas detector 3 in the kuppe 2 under the effect of pressure differential.
Further, since the density of the hydrogen sulfide is greater than that of the air, the hydrogen sulfide overflowed from the sealing opening of the lubricator 1 automatically sinks into the pod 2, and the hydrogen sulfide gas is sucked into the gas detector 3 opposite to the through hole 4 by the pressure difference between the up-and-down gas flow of the pod 2.
The working principle of the gas overflow detection device provided by the second embodiment is the same as that described in the first embodiment, and the gas overflow detection device provided by the second embodiment can also play a role in guiding hydrogen sulfide gas under windless or weak wind conditions and when wind power is large, so that the detection accuracy is greatly improved, the condition that even toxic gas overflows and cannot be detected due to the influence of wind direction is prevented, the hydrogen sulfide overflow condition at the blowout prevention pipe 1 in paraffin removal test operation can be detected at the first time, and the operation safety is improved.
It should be noted that, the gas overflow detection device provided in this embodiment not only can be used in the detection of hydrogen sulfide gas overflow at the lubricator in the paraffin removal operation of the oil well, but also can be used for detecting whether there is specific gas overflow at the sealing port of other sealing devices for testing the sealing effect, and furthermore, the gas overflow detection device provided in this embodiment can also be applied to the diversion of the opening equipment overflow gas, so that the overflow gas flows to the designated direction, the subsequent treatment is convenient, and the device has a certain hint and helps the operation for the treatment of atmospheric pollution.
Optionally, on the basis of the above embodiment, in this embodiment, in order to ensure that the air flowing over the pod 2 is not blocked from any direction, the upper edge of the pod 2 is located at the same level.
Optionally, based on the above embodiment, in this embodiment, the lower surface of the outer wall of the air guide sleeve is hemispherical or ellipsoidal, and this shape is convenient to process, and the gas overflow detecting device provided in this embodiment may also be other downward convex streamline structures, so long as the lower surface of the outer wall of the air guide sleeve 2 protrudes downward.
Optionally, the thickness of the air guide sleeve 2 can be any thickness, and can be selected according to practical situations, and the selection range of the material of the air guide sleeve 2 is also larger, so long as the selected material is easy to process and is not easy to be corroded by overflowed gas.
Furthermore, on the basis of the above embodiment, in this embodiment, the bottom end opening of the air guide sleeve 2 is connected with an annular mounting portion 5, and the connection manner is a sealing connection, so that the air flowing into the air guide sleeve 2 is ensured not to flow out from the connection position between the bottom end opening of the air guide sleeve 2 and the annular mounting portion 5, so as to achieve the purpose that the air guide sleeve 2 guides the air in a specified direction, specifically, the air guide sleeve 2 can be integrally formed with the annular mounting portion 5, and can also be sealed and connected by welding or other manners.
When the dome 2 and the annular mounting portion 5 are integrally formed, the dome may be formed by integrally forming, for example, plastic or other fusible materials through a mold, or may be formed by using a rapid forming technology such as a 3D printing technology, or may be formed by punching or bending a whole thin metal plate into a sheet metal part by using a metal sheet metal process.
Alternatively, the bottom opening of the pod 2 may be connected to the top end of the annular mounting portion 5, or may be connected to any position from the top end to the middle of the annular mounting portion 5.
When the water vapor contained in the gas to be detected is more, the bottom end opening of the air guide sleeve 2 is selected to be connected with one position from the top end of the annular installation part 5 to the middle part, a containing groove can be formed at the bottom end of the inside of the air guide sleeve 2, so that the water vapor and other liquids scattered in the air guide sleeve 2 can be conveniently collected, the liquid is prevented from seeping into the joint of the annular installation part 5 and the lubricator 2, the service life of the equipment is influenced, the air tightness is damaged, and in the embodiment, the connection mode that the bottom end opening of the air guide sleeve 2 is connected with one position from the top end of the annular installation part 5 to the middle part is selected.
On the basis of the above embodiment, in this embodiment, the annular mounting portion 5 is sleeved on the outer side of the lubricator 1, the inner edge of the annular mounting portion 5 is in contact with the outer wall of the lubricator 1, and the inner edge of the annular mounting portion 5 can conform to the radian of the outer circumferential surface of the lubricator 1, so that the annular mounting portion 5 can be tightly attached to the outer circumferential surface of the lubricator 1.
Optionally, in order to ensure the tightness of the fitting, there may be other accessories or designs that assist the fitting between the inner edge of the annular mounting portion 5 and the outer circumferential surface of the lubricator 1, and in this embodiment, the inner edge of the annular mounting portion 5 is a rubber sealing layer.
In order to fix the annular mounting part 5 on the lubricator 1, a threaded opening may be formed in the annular mounting part 5, the annular mounting part 5 may be screwed down by bolts, or 1-2 bolts may be provided on the outer peripheral side of the annular mounting part 5 in a manner similar to a pipe connector, and after the annular mounting part 5 is sleeved on the lubricator 1, the annular mounting part 5 may be fixed on the lubricator 1 by only screwing down the bolts on the sides.
The gas overflow detection device provided by this embodiment further includes a fixing bracket 6, one end of the fixing bracket 6 is fixed on the outer side of the lower end of the annular mounting portion 5, the other end of the fixing bracket 6 is connected with the gas detector 3, and the fixing mode of the fixing bracket 6 on the annular mounting portion 5 can be selected in various modes, so long as the connection between the fixing bracket 6 and the annular mounting portion 5 is ensured to be reliable. For example: the fixing bracket 6 and the annular mounting portion 5 may be fixedly connected, and the fixing bracket 6 and the annular mounting portion 5 may be detachably connected.
When the fixing bracket 6 and the annular mounting portion 5 are fixedly connected, they may be welded or integrally formed.
The fixed support 6 and the annular mounting part 5 can be detachably connected, so that the annular mounting part 5 is fixed, then the fixed support 6 is mounted on the annular mounting part 5, and thus, the mounting personnel can mount the device easily and conveniently, and the device is convenient to take down after the test is finished.
When the fixing bracket 6 and the annular mounting portion 5 are detachably connected, a plurality of fixing modes such as threaded connection or snap connection can be adopted between the annular mounting portion 5 and one end of the fixing bracket 6.
Alternatively, a ring-shaped elastic clip 61 may be provided at one end of the fixing bracket 6, and the elastic clip 61 may be clipped on the outer periphery of the annular mounting portion 5, so that the assembly and disassembly are very convenient. Meanwhile, in order to firmly fix the fixing bracket 6 on the annular mounting portion 5, a plurality of elastic clamping pieces 51 capable of pressing the elastic clamping pieces 61 on the surface of the annular mounting portion 5 may be provided on the annular mounting portion 5, so that the detachable connection between the fixing bracket 6 and the annular mounting portion 5 may be conveniently completed. The connection mode of connecting the fixing bracket 6 and the annular mounting portion 5 through the elastic clamping piece 61 and the plurality of elastic clamping pieces 51 is selected in the embodiment, so that the fixing bracket 6 and the annular mounting portion 5 can be quickly mounted and dismounted.
According to the gas overflow detection device provided by the embodiment, the other end of the fixed support 6 is used for arranging the gas detector 3, the device for arranging the gas detector 3 is specifically a barrel structure provided with the double-layer stainless steel net frame 9, the stainless steel net frame 9 on the upper layer is used for placing the gas detector 3, and the stainless steel net frame 9 on the lower layer is used for placing the gas filtering equipment, so that after gas to be detected flows out of the through hole 4, the gas detector 3 is used for detecting substances to be detected in the gas, and then the gas filtering equipment is used for decomposing substances to be processed in the gas, such as toxic substances, so that the substances are prevented from being diffused into the atmosphere to cause harm.
Optionally, the other end of the fixed support 6 can be connected with the stainless steel net frame 9 at the lower layer, and also can be connected with the outer side wall of the barreled structure, and the two connection modes can all select various forms, so long as the reliable connection between the device provided with the gas detector 3 and the fixed support 6 is ensured.
In this embodiment, the gas detector 3 is a hydrogen sulfide detector, and an iron oxide desulfurizing agent is provided below the hydrogen sulfide detector. Thus, the hydrogen sulfide detector can detect whether the gas flowing out of the through hole 4 of the air guide sleeve 2 contains hydrogen sulfide gas, if so, the alarm is used for alarming to prompt staff that the hydrogen sulfide gas overflows, the detected gas can flow to the iron oxide desulfurizing agent below through the stainless steel net frame 9 below the gas detector 3 to carry out decomposition desulfurization treatment on the hydrogen sulfide gas, and finally, the gas is discharged into the air, so that the pollution of the hydrogen sulfide gas to the air is reduced.
Optionally, the iron oxide desulfurizing agent is packaged by a ventilation box or a ventilation cloth bag and then placed on a stainless steel net frame 9. And checking whether the ferric oxide desulfurizing agent turns black or not when the hydrogen sulfide detector alarms each time, and continuously using the desulfurizing agent after turning yellow in a sun-drying mode.
The gas overflow detection device is used for detecting the overflow of the hydrogen sulfide gas at the lubricator, and is characterized in that the gas detector is arranged outside the air guide sleeve, the air guide sleeve is arranged on the lubricator, and the top end area of the lubricator is covered to contain the overflow gas at the top end of the lubricator; the top end opening of kuppe to the top of uncovered lubricator, the outer wall lower surface of kuppe is protruding downwards, so that form pressure differential between the air current that flows through the top of kuppe and the air current that flows through the kuppe outer wall lower surface below, set up the through-hole of the inside and outside both sides of intercommunication kuppe on the kuppe, the through-hole is relative with the gas detector for guide the gaseous in the kuppe to the gas detector under the effect of pressure differential, realized carrying out the water conservancy diversion to the hydrogen sulfide gas that lubricator sealing place overflowed in the oil well wax scraping work progress and detect and in time report to the police, thereby guarantee even receive the influence that the wind direction changes, the hydrogen sulfide detector still can be right in time report to the excessive condition of hydrogen sulfide that lubricator department took place.
Example III
The embodiment provides a wax scraping device, wherein the wax scraping device at least comprises a lubricator 1 and any gas overflow detection device in the embodiment, wherein the gas overflow detection device is arranged at the top end of the lubricator 1, so that the gas overflowed at the sealing port of the lubricator 1 flows to a hydrogen sulfide detector through a guide cover 2 of the gas overflow detection device. Other components of the wax scraping device can refer to the existing wax scraping structure, and in this embodiment, details of the specific structure and the working principle of the gas overflow detecting device are described in the first embodiment, and are not described herein.
The gas overflow detection device is used for detecting the overflow of the hydrogen sulfide gas at the lubricator in the wax scraping equipment, and the gas detector is arranged outside the air guide sleeve, the air guide sleeve is arranged on the lubricator, and the top end area of the lubricator is covered to contain the overflow gas at the top end of the lubricator; the top end opening of kuppe to the top of uncovered lubricator, the outer wall lower surface of kuppe is protruding downwards, so that form pressure differential between the air current that flows through the top of kuppe and the air current that flows through the kuppe outer wall lower surface below, set up the through-hole of the inside and outside both sides of intercommunication kuppe on the kuppe, the through-hole is relative with the gas detector for guide the gaseous in the kuppe to the gas detector under the effect of pressure differential, realized carrying out the water conservancy diversion to the hydrogen sulfide gas that lubricator sealing place overflowed in the oil well wax scraping work progress and detect and in time report to the police, thereby guarantee even receive the influence that the wind direction changes, the hydrogen sulfide detector still can be right in time report to the excessive condition of hydrogen sulfide that lubricator department took place.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (8)
1. The gas overflow detection device is applied to a lubricator and is characterized by comprising a guide cover and a gas detector;
The gas detector is positioned at the outer side of the air guide sleeve, the air guide sleeve is arranged on the lubricator, and the top end area of the lubricator is covered to contain the gas overflowed from the top end of the lubricator;
The top end of the flow guide cover is opened to expose the top end of the lubricator, the lower surface of the outer wall of the flow guide cover protrudes downwards to enable pressure difference to be formed between air flow flowing through the upper part of the top end of the flow guide cover and air flow flowing through the lower surface of the outer wall of the flow guide cover, through holes communicated with the inner side and the outer side of the flow guide cover are formed in the flow guide cover, the through holes are opposite to the gas detector, and the gas in the flow guide cover is guided to the gas detector under the action of the pressure difference;
the edges of the top opening of the air guide sleeve are positioned on the same horizontal height;
The lower surface of the outer wall of the air guide sleeve is hemispherical or ellipsoidal.
2. The gas overflow detection device of claim 1, wherein the bottom end of the air guide sleeve is provided with an opening, the opening is connected with an annular installation part, the annular installation part is sleeved outside the lubricator, and the inner edge of the annular installation part is in contact with the outer wall of the lubricator.
3. The gas overflow detecting device as claimed in claim 2, wherein an inner edge of the annular mounting portion is a rubber seal layer.
4. The gas overflow detection device of claim 1 further comprising a stationary bracket comprising a stationary ring and a connecting bracket.
5. The apparatus of claim 4, wherein the fixing ring is sleeved on the lubricator, one end of the connecting bracket is connected with the fixing ring, and the other end is used for setting the gas detector.
6. The gas overflow detection device of claim 1 wherein the gas detector is a hydrogen sulfide detector.
7. The gas overflow detecting device as claimed in claim 6, wherein an iron oxide desulfurizing agent is provided below the gas detector.
8. A wax scraping apparatus comprising a lubricator and a gas overflow detection device according to any one of claims 1 to 7, said gas overflow detection device being disposed at the top end of said lubricator.
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| CN201043967Y (en) * | 2007-04-25 | 2008-04-02 | 北京京鲁伟业科技发展有限公司 | Motor petrol lustration testing apparatus |
| KR200473709Y1 (en) * | 2013-02-07 | 2014-07-24 | 한국환경공단 | Flange adapter for collecting combution gas sample |
| CN204233491U (en) * | 2014-11-03 | 2015-04-01 | 创天昱科技(深圳)有限公司 | Aromatic oil volatilization device |
| CN204535788U (en) * | 2014-12-17 | 2015-08-05 | 大唐河北发电有限公司马头热电分公司 | A kind of rectification bell-type pitot tube |
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