CN102226386B - Oil gas ground metering, heat exchange, throttling and heat insulation integral device - Google Patents
Oil gas ground metering, heat exchange, throttling and heat insulation integral device Download PDFInfo
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Abstract
The invention relates to an oil gas ground metering, heat exchange, throttling and heat insulation integral device which can be used for simplifying the ground metering process. The device comprises a pressure-bearing furnace body, a fixed oil nozzle, an adjustable oil nozzle, a manifold valve, a coiler pipeline, a straight pipeline, a double-fuel burner, an airtight valve, a water pipeline, a hot water circulating pump, an oil gas pipeline, a burning heating pipeline, a steam pipeline and a bottom pry. The device provided by the invention has the following advantages: an oil nozzle manifold and a water jacket furnace are integrated into a whole, thereby improving the heating effect; the oil nozzles are embedded into the furnace body for directly heating the oil nozzles, thereby solving the freeze-blockage of the oil nozzles caused by hydrates; a defrosting agent does not need to be injected during the ground metering construction, thereby reducing the cost; the switching between two heating modes, namely the water jacket furnace and a steam heat exchanger, can be performed according to field requirements; the hot water circulating pump can drive hot water or steam in the furnace body to supply heat for other equipment in a circulating manner; and the double-fuel burner takes wellhead natural gas as fuel, thereby reducing the cost of the fuel.
Description
Technical field
The present invention relates to the heat insulation integrated device of a kind of oil gas ground metering interchange of heat throttling, is that a kind of thermal-arrest exchange, throttling, heat insulation function are in the multi-functional measuring equipment of one; Belong to ground metering job engineering apparatus field in the petroleum gas measuring technology.
Background technology
The metering operation of oil gas ground is in the petroleum exploration and development process, under certain working system (oil nozzle), by to the control of the fluid flow of producing well output, pressure and in case of necessity convection cell handle, as chemical agent injection, heating etc., and respectively be separated out by means of oil, gas, the water of eliminator with fluid, carry out accurate measurement respectively, finally try to achieve the isoparametric construction technology of output transitivity of producing well well head pressure, temperature, oil, gas, water under this working system.
In the metering construction of ground, in the natural gas well all association simultaneously a large amount of water vapours is arranged, behind the formation fluid process throttling arrangement of moisture vapor, pressure drop, the process of a large amount of heat absorptions has appearred in formation fluid, the pressure and temperature of air-flow will drop under the frost point of some gas component and form hydrate, hydrate is a solid mixture, it occurs with the crystalline solid form, along with the accumulation of crystallization and the continuous decline of temperature, will cause oil nozzle, freezing of pipeline and equipment and measuring instrument is stifled, and then it is freezing to cause the upstream device of ground test flow process to take place, and causes the continuous data interruption of can't enrolling even construct.
Before the present invention, freeze stifledly in order to reduce gas hydrate, guarantee normally carrying out of ground metering construction, adopt following method usually:
The one, in the measurement flow of ground, connect oil nozzle manifold, water jacket furnace equipment, inject defrosting agent such as ethylene glycol or methyl alcohol by the oil nozzle upstream of chemical injection pump in the oil nozzle manifold, or demulsifier, it is stifled to prevent that oil nozzle from freezing; Also heat to water jacket furnace, heat the formation fluid of the water jacket furnace of flowing through by burning diesel oil or natural gas.This method need consume a large amount of defrosting agents, and guarantees the fuel that water jacket furnace runs well and consumed, and the construction cost of operation is increased greatly; In addition in some high pressure, high gas rate well construction, gas production is big, flow velocity is fast, and during at a high speed by water jacket furnace, water jacket furnace can not effectively heat, also need to install the higher vapor heat exchanger of heat transfer rate, so not only increased labour intensity but also increased the equipment use cost.
The 2nd, in the measurement flow of ground, connect many table oils mouth manifold, the oil nozzle of two above different sizes is installed, adopt the mode of multi-level throttle to connect, by decompression step by step, progressively reduce the front and back pressure reduction of natural gas flow when the open flow oil nozzle, reduce the heat that is absorbed when gas expands, avoid producing hydrate and freeze stifled.But in the practice process, three nuclear one-stage throttling devices can produce certain influence to continuous data, and the output of bringing about the desired sensation need be passed through correction calculation, just can use, and can produce certain error in dipping in calculating, have influenced science and accuracy that parameter generates.Moreover three nuclear one-stage throttling devices want to realize step-down step by step in construction, reach the purpose that improves oil nozzle and downstream line temperature, and each stage pressure just all will keep the critical flow state, and such state relatively is difficult to realize in construction.In addition, the increase of equipment can cause ground metering operation to take huge construction plant, and sea or desert platform are difficult to satisfy site requirements, and landlocked oil field can increase considerable land acquisition expense.
Directly using heater, by improving its temperature before the oil nozzle, is that the most direct effective solution oil nozzle freezes blocking method at formation fluid.
According to this thinking, we are based on the metering throttling of existing ground, firing equipment, designed " double-layer heat insulation choke manifold " according to field experience and construction needs, adopt the mode of concentric tube polyphone and the combination of oil nozzle manifold, circulate in concentric tube by steam, heat the formation fluid in the pipeline, thereby reach the purpose of anti-freezing and heat-insulating.But because this design biases toward the throttling heat insulation effect, do not possess heating function, in construction, must be used, still increased the equipment input with steam generator.In addition, be incubated because this equipment uses the concentric tube interlayer to feed steam, heat transfer space and heat exchange area all are very restricted, and heat exchange is lower, can not reach the heat insulation effect that needs.After this " the throttling heat insulation and heating equipment " of design is out of shape five valve oil mouth manifolds again, and five valves, two positive chokes, adjustable bean and bypass valve and heating (heat exchange) container are merged.This device possesses the function of oil nozzle manifold and two kinds of equipment of water jacket furnace, use easier and better heat preservation, can realize the whole process free of frost, need not chemical agent and inject, thoroughly solve the stifled problem of freezing in the throttling process and after the throttling, reduced the cost consumption of equipment input and insulation fuel.But there is not corresponding steam heat function of exchange.
Summary of the invention
The object of the present invention is to provide the heat insulation integrated device of a kind of oil gas ground metering interchange of heat throttling, simplify the ground measurement flow, thoroughly solve the problem that gas hydrate freezes stifled ground flow and equipment in the metering construction of ground; As heating fuel, oil nozzle no longer needs chemical defrosting agent to inject, and saves fuel oil and defrosting agent, reaches the effect of energy-saving and emission-reduction with the natural gas of output in the well during the test and measuring.Overcome the single deficiency of apparatus function in the past, in device, realize the switching of " water jacket furnace " and " steam heat-exchanger " two kinds of heating modes easily, satisfy the different requirements in oil field with an equipment, compliance is stronger, and has greatly reduced the equipment cost input.Can realize formation testing, the production testing operation of various ways such as " product falls in voltage stabilizing ", " stable yields step-down ", " positive choke is asked product " more easily.
The present invention adopts following technical scheme, be that a kind of oil gas ground heat insulation integrated device of metering interchange of heat throttling is by the pressure-bearing body of heater, positive choke, adjustable bean, the manifold valve, the valve steel bushing, the coil pipe pipeline, the straight tube pipeline, dual fuel burner, airtight valve, back with water inlet line, flowing line, hot water circulator, oil-gas pipeline, support, the combustion heating pipe line, steam enters pipeline, the vapour-discharge tube line, steam pipe line safety valve and end sledge constitute, the pressure-bearing body of heater is the horizontal tank shape, the pressure-bearing bottom of furnace body has support, dual fuel burner also has support, prop up and be placed on the end sledge, it is characterized in that the pressure-bearing body of heater has a left side, right two end faces, wherein on the left side adjustable bean is installed, positive choke, the water pipe valve of back with water inlet line and vapour-discharge tube line, the vapour-discharge tube line directly communicates with the inner chamber of pressure-bearing body of heater, the valve that oil-gas pipeline puts through valve steel respectively with adjustable bean, positive choke links to each other with the interior coil pipe pipeline of pressure-bearing body of heater, coil pipe pipeline and straight tube pipeline place in the pressure-bearing body of heater, the right-hand member of coil pipe pipeline and straight tube pipeline is connected with the oil nozzle or the manifold valve of pressure-bearing body of heater right side, back with water inlet line places the middle part of pressure-bearing body of heater inner chamber, be provided with the combustion heating pipe line near bottom of furnace body in the pressure-bearing body of heater, combustion heating pipe line one end links to each other with the dual fuel burner inlet of pressure-bearing body of heater right side, the combustion heating pipe line other end is in the open top of pressure-bearing body of heater left end, the chimney of artificial landing is housed at opening part, pipeline being connected on the oil-gas pipeline that pressure-bearing body of heater right side leans out in the body of heater through the manifold valve, the pressure-bearing bottom of furnace body has flowing line, hot water circulator and draining valve are installed on the flowing line, at pressure-bearing upper of furnace body opening airtight valve is housed, at pressure-bearing body of heater right-hand end steam is housed and enters pipeline, steam enters pipeline and directly communicates with pressure-bearing body of heater inner chamber, and steam enters the steam pipe line safety valve is installed on the pipeline.
Oil nozzle (adjustable bean and positive choke) embeds pressure-bearing body of heater end face, directly heats the throttle point that natural gas passes through, and thoroughly eliminates throttle point and freezes stifled formative factor.It can install required model and size according to the real work system adjustable bean and positive choke.
On the oil-gas pipeline of the oil nozzle upstream and downstream of said apparatus, reserved data acquisition interface, can the data acquisition unit of temperature and pressure be installed, enrolled related datas such as pressure and temp in real time according to the working design requirement.
The coil pipe pipeline is that prolonged the heat time heating time of oil gas in the oil-gas pipeline in order to make, and oil-gas pipeline is elongated in the pressure-bearing body of heater, and coiling repeatedly is detained and the abundant one group of oil-gas pipeline that heats the oil gas in the pipeline in the pressure-bearing body of heater repeatedly.The length of coil pipe can be coiled lengthening as required or shorten.
The straight tube pipeline be one directly via the linear oil-gas pipeline of pressure-bearing body of heater one end through the other end.Be applicable to output oil gas without long-time heating.
Coil pipe pipeline in the said apparatus and straight tube pipeline are arranged at the top or the middle part of pressure-bearing body of heater inner chamber.
Back with water inlet line is in order to add water and custom-designed back with water inlet line for the pressure-bearing body of heater.
The pressure-bearing body of heater can adopt pressure-bearing material and the manufacturing process manufacturing identical with water jacket furnace housing in the prior art.But above-mentioned pressure-bearing body of heater pressure-bearing 1Mpa.
Content gauge is equipped with in the right-hand member outside of pressure-bearing body of heater.
Dual fuel burner can use diesel oil and two kinds of fuel combustions of natural gas, is intrasystem aqueous medium heating.Fuel can freely switch use, and gas burner also can directly use the well head natural gas, and need not power, the running of unregulated power consumption for a long time.Be inserted into the dual fuel burner inlet of pressure-bearing body of heater right side when using dual fuel burner.
Chimney can pass through the manpower landing, is convenient to change between water jacket furnace and two kinds of functions of the equipments patterns of steam heat-exchanger.When using as water jacket furnace, chimney need be holded up, so that burner passes through the water in the combustion heating pipe line heating water jacket stove, waste gas is discharged through chimney simultaneously; When using as steam heat-exchanger, with water emptying in the stove, needn't hold up chimney, only need the close encapsulation valve, ensure that the steam pressure in the stove is not more than 1Mpa.
The heat insulation integrated device of oil gas of the present invention ground metering interchange of heat throttling, its left side and right side can exchange functions, as long as with behind the equal right and left mutually changing of corresponding accessory, re-assembly and get final product.
This device was once tested application in the ground in two oil fields metering construction northeastward, in the process of using different operating system oil nozzle open flow, though it is more violent that wellhead temperature changes, but after " the heat insulation integrated system of ground metering interchange of heat throttling ", the formation fluid temperature at oil nozzle position is basicly stable at 30 ℃, formation fluid temperature after the oil nozzle remains on 20 ℃ substantially, greatly satisfied in the manufacturing process requirement for temperature.This system architecture of final certification is reasonable, working stability is reliable, its job success ratio has reached 100%, stop ground test fully and asked and produce in the operation process, because of temperature fluctuation, freeze cause the constructing generation of failure of stifled problem, reached the performance indications of original design fully.Obtained extraordinary effect, obtained the consistent favorable comment of service unit, had broad application prospects.
Beneficial effect of the present invention, oil nozzle manifold seal in behind the pressure-bearing body of heater inside and the pressure-bearing body of heater integrated as a whole, improve the integrated of equipment; The oil nozzle at pressure-bearing body of heater two ends embeds pressure-bearing body of heater inside, directly heats the throttle point that natural gas passes through, and thoroughly eliminates throttle point and freezes stifled formative factor; Pressure-bearing body of heater pressure-bearing 1Mpa, and safety valve is installed, integral body can realize sealing and normal pressure two states, under the atmospheric pressure state, can be used as the water jacket furnace heating of burning at the construction field (site); Under the sealing state, can maximum pressure-bearing 1Mpa, as steam heat-exchanger, be used with steam heating boiler outside the well site.Hot water circulator can be in the winter time set up circulation with equipment such as measuring tank, realizes hot water or steam heating.Prove that in actual applications it is rational in infrastructure, working stability is reliable, job success ratio reaches 100%, has broad application prospects.
Description of drawings
Fig. 1 is a pressure-bearing body of heater internal construction schematic diagram of the present invention;
Fig. 2 is the left side structural representation of pressure-bearing body of heater of the present invention;
Fig. 3 is the right side structural representation of pressure-bearing body of heater of the present invention;
Among the above-mentioned figure, pressure-bearing body of heater 1, back with water inlet line 2, steam enter pipeline 3, steam pipe line safety valve 4, manifold valve 5, adjustable bean 6, valve steel bushing 7, coil pipe pipeline 8, straight tube pipeline 9, positive choke 10, dual fuel burner 11, dual fuel burner inlet 12, airtight valve 13, chimney 14, content gauge 15, hot water circulator 16, flowing line 17, vapour-discharge tube line 18, water pipe valve 19, combustion heating pipe line 20, branch road gutter 21, support 22, end sledge 23, oil-gas pipeline 24.
The specific embodiment
Below in conjunction with Fig. 1, Fig. 2 and Fig. 3, concrete structure of the present invention is further specified, the oil gas of the present invention ground heat insulation integrated device of metering interchange of heat throttling is by pressure-bearing body of heater 1, positive choke 10, adjustable bean 6, manifold valve 5, valve steel bushing 7, coil pipe pipeline 8, straight tube pipeline 9, dual fuel burner 11, airtight valve 13, back with water inlet line 2, flowing line 17, hot water circulator 16, oil-gas pipeline 24, support 22, combustion heating pipe line 20, steam enters pipeline 3, vapour-discharge tube line 18, steam pipe line safety valve 4 and end sledge 23 constitute, pressure-bearing body of heater 1 is the horizontal tank shape, support 22 is arranged at pressure-bearing body of heater 1 bottom, dual fuel burner 11 also has support 22, support 22 places on the end sledge 23, it is characterized in that pressure-bearing body of heater 1 has a left side, right two end faces, adjustable bean 6 wherein is installed on the left side, positive choke 10, the water pipe valve 19 of back with water inlet line 2 and vapour-discharge tube line 18, vapour-discharge tube line 18 directly communicates with the inner chamber of pressure-bearing body of heater, the manifold valve 5 of oil-gas pipeline 24 on the left side on valve steel bushing 7 respectively with adjustable bean 6, the coil pipe pipeline 8 in positive choke 10 and the pressure-bearing body of heater 1 and the left end of straight tube pipeline 9 link to each other, coil pipe pipeline 8 and straight tube pipeline 9 place in the pressure-bearing body of heater (1), the right-hand member of coil pipe pipeline 8 and straight tube pipeline 9 is connected with the oil nozzle or the manifold valve 5 of pressure-bearing body of heater 1 right side, back with water inlet line 2 places the middle part of pressure-bearing body of heater 1 inner chamber, be provided with combustion heating pipe line 20 near bottom of furnace body in the pressure-bearing body of heater 1, combustion heating pipe line 20 1 ends link to each other with the dual fuel burner inlet 12 of pressure-bearing body of heater 1 right side, combustion heating pipe line 20 other ends are in the open top of pressure-bearing body of heater left end, opening part is equipped with the chimney 14 of artificial landing, pipeline being connected on the oil-gas pipeline 24 that pressure-bearing body of heater 1 right side leans out in the body of heater through manifold valve 5, pressure-bearing body of heater 1 bottom has flowing line 17, hot water circulator 16 and water pipe valve 19 are installed on the flowing line 17, open back at pressure-bearing body of heater 1 is equipped with airtight valve 13, at pressure-bearing body of heater 1 right-hand end steam is housed and enters pipeline 3, steam enters pipeline 3 and directly communicates with pressure-bearing body of heater 1 inner chamber, and steam enters steam pipe line safety valve 4 is installed on the pipeline 3.Content gauge 15 is equipped with in the right-hand member outside of pressure-bearing body of heater 1.
The main drainpipe that is of hot water circulator 16 and water pipe valve 19 is installed on the flowing line 17, and an other flowing line and a water pipe valve 19 without hot water circulator 16 constitutes branch road gutter 21.
Above-mentioned dual fuel burner 11 needs to insert in the dual fuel burner inlet 12 of pressure-bearing body of heater right side in use.
The present invention combines oil nozzle manifold and water jacket furnace together, saves equipment usage space and acquisition cost; Prolong formation fluid in the intrasystem time of staying, raising adds thermal effect; Two replaceable oil nozzles of end face are bumped into body of heater, directly to oil nozzle heating, can thoroughly solve the oil nozzle that gas hydrate causes along with the raising of heating power and freeze stifled; Defrosting agent need not be before oil nozzle, injected in the metering construction of ground, the construction cost that injects chemical defrosting agent can be saved; But the pressure-bearing body of heater can according to field requirement, conveniently switch between " water jacket furnace " and " steam heat-exchanger " two kinds of heating modes in construction; Hot water circulator can drive the hot water in the body of heater, is the miscellaneous equipment circulation heating; Dual fuel burner acts as a fuel with the well head natural gas, cost capable of saving fuel.
Claims (4)
1. the heat insulation integrated device of interchange of heat throttling is measured on an oil gas ground, by pressure-bearing body of heater (1), positive choke (10), adjustable bean (6), manifold valve (5), valve steel bushing (7), coil pipe pipeline (8), straight tube pipeline (9), dual fuel burner (11), airtight valve (13), back with water inlet line (2), flowing line (17), hot water circulator (16), oil-gas pipeline (24), support (22), combustion heating pipe line (20), steam enters pipeline (3), vapour-discharge tube line (18), steam pipe line safety valve (4) and end sledge (23) constitute, pressure-bearing body of heater (1) is the horizontal tank shape, support (22) is arranged at pressure-bearing body of heater (1) bottom, dual fuel burner (11) also has support (22), support (22) places on the end sledge (23), it is characterized in that pressure-bearing body of heater (1) has a left side, right two end faces, adjustable bean (6) wherein is installed on the left side, positive choke (10), the water pipe valve (19) of back with water inlet line (2) and vapour-discharge tube line (18), vapour-discharge tube line (18) directly communicates with the inner chamber of pressure-bearing body of heater, the manifold valve (5) of oil-gas pipeline on the left side (24) on valve steel bushing (7) respectively with adjustable bean (6), the coil pipe pipeline (8) in positive choke (10) and the pressure-bearing body of heater (1) and the left end of straight tube pipeline (9) link to each other, coil pipe pipeline (8) and straight tube pipeline (9) place in the pressure-bearing body of heater (1), the right-hand member of coil pipe pipeline (8) and straight tube pipeline (9) is connected with the oil nozzle or the manifold valve (5) of pressure-bearing body of heater (1) right side, back with water inlet line (2) places the middle part of pressure-bearing body of heater (1) inner chamber, be provided with combustion heating pipe line (20) near bottom of furnace body in the pressure-bearing body of heater (1), combustion heating pipe line (20) one ends link to each other with the dual fuel burner inlet (12) of pressure-bearing body of heater (1) right side, combustion heating pipe line (20) other end is in the open top of pressure-bearing body of heater left end, opening part is equipped with the chimney (14) of artificial landing, the pipeline that pressure-bearing body of heater (1) right side leans out in the body of heater is connected on the oil-gas pipeline (24) through manifold valve (5), pressure-bearing body of heater (1) bottom has flowing line (17), hot water circulator (16) and water pipe valve (19) are installed on the flowing line (17), open back at pressure-bearing body of heater (1) is equipped with airtight valve (13), at pressure-bearing body of heater (1) right-hand end steam is housed and enters pipeline (3), steam enters pipeline (3) and directly communicates with pressure-bearing body of heater (1) inner chamber, and steam enters steam pipe line safety valve (4) is installed on the pipeline (3).
2. metering interchange of heat throttling heat insulation integrated device in oil gas as claimed in claim 1 ground is characterized in that described oil nozzle (6,10) embeds pressure-bearing body of heater (1) end face.
3. metering interchange of heat throttling heat insulation integrated device in oil gas as claimed in claim 1 ground is characterized in that described pressure-bearing body of heater (1) can bear 1Mpa pressure.
4. metering interchange of heat throttling heat insulation integrated device in oil gas as claimed in claim 1 ground is characterized in that content gauge (15) is equipped with in the right-hand member outside of described pressure-bearing body of heater (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110100307 CN102226386B (en) | 2011-04-21 | 2011-04-21 | Oil gas ground metering, heat exchange, throttling and heat insulation integral device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110100307 CN102226386B (en) | 2011-04-21 | 2011-04-21 | Oil gas ground metering, heat exchange, throttling and heat insulation integral device |
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| CN102226386A CN102226386A (en) | 2011-10-26 |
| CN102226386B true CN102226386B (en) | 2013-07-31 |
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Families Citing this family (1)
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| CN102720465B (en) * | 2012-06-29 | 2015-06-24 | 中煤第五建设有限公司 | Method for forcibly unfreezing frozen hole |
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| CN200978653Y (en) * | 2006-11-30 | 2007-11-21 | 杜亮 | Gas type water-jacket crude oil heating stove |
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| CN201433740Y (en) * | 2009-06-30 | 2010-03-31 | 北京百恒达石油技术有限公司 | Water jacket furnace |
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| US20080078552A1 (en) * | 2006-09-29 | 2008-04-03 | Osum Oil Sands Corp. | Method of heating hydrocarbons |
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| US5224542A (en) * | 1990-01-24 | 1993-07-06 | Indugas, Inc. | Gas fired radiant tube heater |
| CN200978653Y (en) * | 2006-11-30 | 2007-11-21 | 杜亮 | Gas type water-jacket crude oil heating stove |
| CN201059885Y (en) * | 2007-06-16 | 2008-05-14 | 郎咸法 | Improved steam heat exchanger |
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Effective date of registration: 20210617 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: 300457 science and Technology Development Department of Bohai Drilling Engineering Co., Ltd., No. 106, Huanghai Road, Tianjin Development Zone Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |