CN201218082Y - Gas well skid-mounted throttling heating furnace - Google Patents
Gas well skid-mounted throttling heating furnace Download PDFInfo
- Publication number
- CN201218082Y CN201218082Y CNU2008201080535U CN200820108053U CN201218082Y CN 201218082 Y CN201218082 Y CN 201218082Y CN U2008201080535 U CNU2008201080535 U CN U2008201080535U CN 200820108053 U CN200820108053 U CN 200820108053U CN 201218082 Y CN201218082 Y CN 201218082Y
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- sledge
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- heating furnace
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 26
- 239000007789 gas Substances 0.000 claims abstract description 74
- 238000009826 distribution Methods 0.000 claims abstract description 7
- 239000002737 fuel gas Substances 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 239000000567 combustion gas Substances 0.000 claims description 38
- 230000006837 decompression Effects 0.000 claims description 20
- 238000000926 separation method Methods 0.000 claims description 7
- 239000010865 sewage Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 239000003129 oil well Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004321 preservation Methods 0.000 abstract 2
- 238000003466 welding Methods 0.000 abstract 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000003345 natural gas Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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Abstract
A gas well skid-mounted throttling heating furnace is applied to condensate gas fields and high gas-oil ratio oil wells. Is characterized in that: the sledge seat is formed by welding profile steels, and a heat preservation room is fixed on the sledge seat. A furnace body is fixed in the heat preservation room. The wellhead high-low pressure emergency cut-off valve V4 is connected with a third-level preheating coil, and the third-level preheating coil is respectively connected with a first-level throttling valve V1, a second-level throttling valve V2 and a third-level throttling valve V3. The third-stage preheating coil is fixed in a preheating zone of the furnace body. And an outlet pipeline of the third-stage preheating coil is connected with a gas distribution bag, and a gas outlet of the gas distribution bag is connected with an outer gas collecting pipeline of the skid and an outer gas collecting valve of the skid. The three-stage preheating coil is also connected with two-stage pressure reducing valve banks V5 and V6 in series. The two-stage pressure reducing valve banks V5 and V6 are connected with a fuel gas distribution bag through pipelines, and the fuel gas distribution bag is connected with a Pan-type burner. The effect is as follows: the unattended production is realized; the device is easy to integrally move and install, and is suitable for normal production of gas wells and oil wells with high gas-oil ratio.
Description
Technical field
The utility model relates to oil field oil recovery ground surface works technical field, and particularly a kind of heating furnace is a kind of heating furnace that is applied to the whole sledge dress of gas condensate field and high gas-oil ratio (HGOR) oil well.
Background technology
At present, throttlings heating delivery technology technology are all adopted in the exploitation of some ground, gas field, oil field operation district, and depleted formula production is adopted in the gas field, cause that the well point multiaspect is wide, complicated geology, personnel be in short supply.
Gas condensate field that depleted formula is produced and high gas-oil ratio (HGOR) oil well output after exploitation a period of time obviously descends, the oil well of especially high steam oil ratio (SOR), and the old-fashioned water jacket furnace of development late stage is in idle state.And the oil well of high oil-gas ratio constantly can appear in the process of oil field rolling development successively, and needing to install water jacket furnace to produce, original old-fashioned water jacket furnace can not be moved, and the automatic control degree is low, and operating personnel's requirement is big.Old-fashioned water jacket furnace can not combine together with each work system of gas well mouth heating furnace, and combustion gas can not be provided separately, can not finish whole sledge dressization.A newly-built heating furnace must be finished a large amount of back works, comprises civil engineering, is incubated, returns defeated combustion gas etc.Along with the exploitation successively in oil field, every resettlement once drops into 800,000 yuan of construction funds at least, needs the long construction period simultaneously.
The utility model content
The purpose of this utility model is: a kind of gas well sledge dress throttling heating furnace is provided, is equipped with gas burning system, compact conformation makes things convenient for integral moving, shortens well construction period, is fit to the monolithic sledge dress heating furnace that different pressures rank well head is produced.The gas field gas well and the high gas-oil ratio (HGOR) oil well that overcome depleted formula are in the idle state problem at the development late stage water jacket furnace.
The technical solution adopted in the utility model is: gas well sledge dress throttling heating furnace, mainly formed by sledge seat, insulated building, body of heater, combustion gas decompression separation system, control instrument control system (combustible-gas detector instrument etc.), electrical distribution system.It is characterized in that: the sledge seat is welded into by shaped steel, is fixed with insulated building on the sledge seat.In insulated building, be fixed with body of heater.Body of heater comprises burning nozzles, burner hearth, flue and coil pipe.
Combustion gas decompression separation system comprises that well head high-low pressure quick action emergency valve V4, three grades of preheat coils, combustion gas divide gas bag and two-stage decompression valve.Well head high-low pressure quick action emergency valve V4 connects three grades of preheat coils, is connected with one-level choke valve V1, two-step throttle valve V2, three grades of choke valve V3 on three grades of preheat coils respectively.Three grades of preheat coils are fixed in the body of heater preheating zone.Three grades of preheat coil outlet lines are connected with combustion gas and divide gas bag a, and combustion gas divides the gas outlet of gas bag a to be connected with outer gas gathering line of sledge and the outer gas collection valve of sledge.Three grades of preheat coils also are connected in series with two-stage decompression valve group V5, V6.Two-stage decompression valve group V5, V6 have pipeline connection combustion gas to divide gas bag b, and combustion gas divides gas bag b to connect Pan's formula nozzles.
The natural gas that gas well produces is through well head high-low pressure quick action emergency valve V4, entering sledge dress heating furnace one-level coil pipe is heated, natural gas after the heating is through one-level choke valve V4 step-down, natural gas after the step-down cooling enters secondary coil once more, natural gas after the heating carries out step-down through two-step throttle valve V2, natural gas after the step-down cooling enters three grades of coil pipes once more, through directly entering the outer gas gathering line of sledge after three grades of choke valve V3 step-down, on three grades of preheat coil outlet lines, combustion gas is housed and divides gas bag a.Combustion gas divides gas bag b to enter Pan's formula burner combustion through combustion gas through reducing pressure through two-stage decompression valve V5, V6 after the re-heat more again.
Adopt the light current electromagnetic valve of essential safety that the double valve cut-out is carried out in combustion gas for the performance element of realizing unmanned guard's control section; For combustion gas one-level decompression back pressure superelevation, adopt the stop valve of Purely mechanical, need not the outside energy is provided.Adopt Purely mechanical well head quick action emergency valve equally for three grades of outlet pressures unusual (smooth build-up of pressure superelevation of gas gathering line or gas gathering line break build-up of pressure low excessively).The test point that needs to cut off the combustion gas blowing out has: the body of heater water level is low, combustion gas separatory bag liquid level height, and fray-out of flame, import and export at different levels simultaneously all have pressure, temperature teletransmission to central control room.
For convenient removal, sewage blow-down valve, well head high-low pressure quick action emergency valve V4 on the gas well sledge dress throttling heating furnace are connected with flange.
In order to realize the Winter protection function, the valve on two-stage decompression valve V5, V6 and burning line and the fuel gas line all is close to body of heater.
Effect of the present utility model: gas well sledge dress throttling heating furnace, from 32MPa, 20 ℃ of temperature are reduced to 2.5MPa gas well air pressure, and temperature reaches 35 ℃ and produces.Ordinary production does not need outer for combustion gas simultaneously.Gas burning system can be gas well gas from 8MPa, and 35 ℃ of temperature are reduced to 0.3MPa, and temperature reaches 35 ℃, keeps the safety in production.Need not personnel's post.This well production can integral body be moved after descending, but only needs to connect just ordinary production of corresponding flange.
Be combined in the old-fashioned water jacket furnace of usefulness, according to Joule-Thomson effect, and the principle of hydrate generation, with throttling stop valve natural gas is carried out step-down, re-heat, satisfy the ordinary production while of gas well, gas field gas well industry characteristics and the high gas-oil ratio (HGOR) oil well of having considered depleted formula simultaneously are in idle state at the development late stage water jacket furnace, develop monolithic sledge dress heating furnace.This skid water jacket furnace compact conformation is easy to integral moving, installation, just can independently produce as long as connect 5 corresponding flanges.Realized remote monitoring, controlled defencive function on the spot, utilized the body of heater self heat, do not needed electric tracing can finish heat insulation function in conjunction with Promethean pipeline layout structure; Promethean combustion gas separation, voltage stabilizing, the overpressure protection system of having carried, to combustion gas separate automatically, purification, voltage stabilizing, not only adapt to gas well production, adapt to the oil well of high steam oil ratio (SOR) equally.Pressure-bearing grade 32MPa, wide adaptability.According to the field demand of whole Xinjiang Oilfield Company, finished the seriation requirement of whole sledge shove charge jointly with designing institute, pressure rating is divided into 25MPa and two grades of 32MPa.Handle tolerance and be divided into 50,000 side/days, 100,000 side/days, 200,000 side/series such as day.
Description of drawings
Fig. 1 is the utility model gas well sledge dress throttling heating furnace vertical view.
Fig. 2 is the schematic cross section of Fig. 1.
Among the figure, 1. sledge seat, 2. body of heater, 3. nozzles, 4. sewage blow-down valve, 5. combustion gas divides gas bag a, the 6. outer gas collection valve of sledge, 7. combustion gas divides gas bag b, 8. insulated building.
Vertical view and sectional drawing those skilled in the art have been arranged, can build gas well sledge dress throttling heating furnace fully.Accompanying drawing is the application's a embodiment, is not full content of the present utility model.Body of heater, well head quick action emergency valve V4, choke valve, combustion gas divide gas bag, Pan's formula nozzles etc., and city's field energy has been bought.
The specific embodiment
Embodiment 1: gas well sledge dress throttling heating furnace, and on probation at stone west oil field operation district SN8116 well through half a year, advance to prize pressure 12MPa, 21 ℃ of temperature, outlet pressure 3.9MPa goes out 49 ℃ of sledge temperature, and 32 ℃ of inlet temperatures have satisfied production requirement fully.
Consult Fig. 1.The utility model gas well sledge dress throttling heating furnace mainly is made up of sledge seat 1, insulated building 8, body of heater 2, combustion gas decompression separation system, control instrument control system, electrical distribution system.
Adopt No. 25 channel-section steels to be welded into rectangular sledge seat 1, on sledge seat 1, be fixed with insulated building 8.In insulated building 8, be fixed with a combustion gas body of heater 2.Combustion gas body of heater 2 comprises burning nozzles, burner hearth, flue and coil pipe.
Combustion gas decompression separation system comprises that well head high-low pressure quick action emergency valve V4, three grades of preheat coils, combustion gas divide gas bag and two-stage decompression valve.Well head high-low pressure quick action emergency valve V4 connects three grades of preheat coils, is connected with one-level choke valve V1, two-step throttle valve V2, three grades of choke valve V3 on three grades of preheat coils respectively.Three grades of preheat coils are fixed in the preheating zone of body of heater.Three grades of preheat coil outlet lines are connected with combustion gas and divide gas bag a, and combustion gas divides the gas outlet of gas bag a to be connected with outer gas gathering line of sledge and the outer gas collection valve 6 of sledge.Three grades of preheat coils also are connected in series with two-stage decompression valve group V5, V6.Two-stage decompression valve group V5, V6 have pipeline connection combustion gas to divide gas bag b, and combustion gas divides gas bag b to connect Pan's formula nozzles.
Be connected with flange on sewage blow-down valve 4 on the gas well sledge dress throttling heating furnace, the well head high-low pressure quick action emergency valve V4, adopt flange to be connected with well mouth of oil well, easy for installation.
Consult Fig. 2.Valve on two-stage decompression valve V5, V6 and burning line and the fuel gas line all is close to body of heater 2.
Claims (3)
1, a kind of gas well sledge dress throttling heating furnace mainly is made up of sledge seat (1), insulated building (8), body of heater (2), combustion gas decompression separation system, control instrument control system, electrical distribution system, it is characterized in that:
Sledge seat (1) is welded into by shaped steel, is fixed with insulated building (8) on sledge seat (1), is fixed with body of heater (2) in insulated building 8, and body of heater (2) comprises burning nozzles, burner hearth, flue and coil pipe;
Combustion gas decompression separation system comprises well head high-low pressure quick action emergency valve V4, three grades of preheat coils, combustion gas divides gas bag and two-stage decompression valve, well head high-low pressure quick action emergency valve V4 connects three grades of preheat coils, be connected with one-level choke valve V1 on three grades of preheat coils respectively, two-step throttle valve V2, three grades of choke valve V3, three grades of preheat coils are fixed in the preheating zone of body of heater, three grades of preheat coil outlet lines are connected with combustion gas and divide gas bag a (5), combustion gas divides the gas outlet of gas bag a (5) to be connected with outer gas gathering line of sledge and the outer gas collection valve (6) of sledge, three grades of preheat coils also are connected in series with two-stage decompression valve group V5, V6, two-stage decompression valve group V5, V6 has pipeline connection combustion gas to divide gas bag b (7), and combustion gas divides gas bag b (7) to connect Pan's formula nozzles.
2, gas well sledge dress throttling heating furnace according to claim 1, it is characterized in that: sewage blow-down valve (4), well head high-low pressure quick action emergency valve V4 on the gas well sledge dress throttling heating furnace are connected with flange.
3, gas well sledge dress throttling heating furnace according to claim 1, it is characterized in that: the valve on two-stage decompression valve V5, V6 and burning line and the fuel gas line is close to body of heater (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201080535U CN201218082Y (en) | 2008-05-22 | 2008-05-22 | Gas well skid-mounted throttling heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201080535U CN201218082Y (en) | 2008-05-22 | 2008-05-22 | Gas well skid-mounted throttling heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201218082Y true CN201218082Y (en) | 2009-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201080535U Expired - Lifetime CN201218082Y (en) | 2008-05-22 | 2008-05-22 | Gas well skid-mounted throttling heating furnace |
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| Country | Link |
|---|---|
| CN (1) | CN201218082Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089198A (en) * | 2013-01-17 | 2013-05-08 | 苏州海陆重工股份有限公司 | Ordinary pressure water jacket furnace of acidic gas field wellhead |
| CN104100229A (en) * | 2013-04-03 | 2014-10-15 | 中国石油天然气股份有限公司 | Method for heating by using wellhead natural gas and skid-mounted device |
| CN111854153A (en) * | 2020-08-10 | 2020-10-30 | 山东联盟特种装备有限公司 | Skid Mounted Furnace |
-
2008
- 2008-05-22 CN CNU2008201080535U patent/CN201218082Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089198A (en) * | 2013-01-17 | 2013-05-08 | 苏州海陆重工股份有限公司 | Ordinary pressure water jacket furnace of acidic gas field wellhead |
| CN104100229A (en) * | 2013-04-03 | 2014-10-15 | 中国石油天然气股份有限公司 | Method for heating by using wellhead natural gas and skid-mounted device |
| CN104100229B (en) * | 2013-04-03 | 2017-03-15 | 中国石油天然气股份有限公司 | Method for heating by using wellhead natural gas and skid-mounted device |
| CN111854153A (en) * | 2020-08-10 | 2020-10-30 | 山东联盟特种装备有限公司 | Skid Mounted Furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090408 |
|
| CX01 | Expiry of patent term |