CN207750073U - A kind of oil field gas injection well ground flow attemperator - Google Patents

Abstract

The utility model is a kind of oil field gas injection well ground flow attemperator, have the characteristics that resistance to compression, heat insulation effect is good, be unlikely to deform, service life it is long.The present apparatus includes anticorrosive heat insulating paint metal protection layer; anticorrosive heat insulating paint, winding aluminium foil glass fiber fabric, package nanoporous aerogel felt are brushed successively from inside to outside in the outer surface of ground flow component; outermost layer is coat of metal, wherein aluminium foil glass fiber fabric at least wind two layers, nanoporous aerogel felt at least wrap up one layer.It is kept the temperature, is had convenient for construction, energy-saving effect outstanding feature relative to alumina silicate insulation quilt used at present.It is thinned using the thickness of rear attemperator, heat dissipation area is reduced, and has many advantages, such as that waterproof, compressive property enhancing, service life extend.The heat loss of ground flow component is effectively reduced, and is hardly damaged, Master Cost is reduced, reduces steam injection cost, effectively improves the thermal efficiency of steam injection system.

Description

A kind of oil field gas injection well ground flow attemperator

Technical field

The utility model is related to the attemperator of petroleum industry steamed well ground flow, especially a kind of oil field gas injection well Ground flow attemperator, have the characteristics that resistance to compression, heat insulation effect is good, be unlikely to deform, service life it is long.

Background technology

In recent years, it is increasing that high temperature and pressure moist steam oil recovery proportion is noted in thickened oil recovery.Oil field steamed well Ground flow component includes movable steam injection tube line and well compensator, and well compensator is as movable steam injection tube line and steam injection well head Uniquely coupled device, played a crucial role in steam injection flow.Well compensator manufacture configuration include pressure-bearing straight tube, Short port tube, elbow composition, and the device in configuration of dispatching from the factory not with any resistance to compression, heat preservation, the well head that steam injection well uses at present are mended It repays device Insulation and is wound heat preservation using the heat preservation of complex silicate aluminium, heat insulation effect is bad, and heat loss is higher, and Insulation is bad Compensator is set to become the main reason for heat waste is high.

In the steam injection flow of ground, connect well head and injection boiler is movable steam injection tube line, and uses complex silicate aluminium Heat preservation is wound heat preservation, and heat insulation effect is bad, and heat loss is higher.Since movable steam injection tube line is longer, the quality of its heat insulation effect The radiation loss of ground flow is directly influenced, the heat preservation energy-saving of movable steam injection tube line becomes energy saving work in steam injection well ground flow The emphasis of work.

According in recent years to the field application of movable boiler and fixed boiler and the well compensator thermal insulation material used Survey and Inquiry and analysis, heat insulation effect of the alumina silicate insulation quilt insulation construction within 1-2 steam injection period is preferable, but with making With the increase in period, heat insulation effect is gradually deteriorated, and decays by natural degradation heat-proof quality, especially multiple construction and installation dismounting It is easily damaged after use, lead to not reuse.Main cause is as follows:1, under high temperature alumina silicate insulation quilt stability compared with Difference, natural degradation lead to the lost of life；2, Anti-pull-press performance is poor, mutability under being pressurized or shaking;3, alumina silicate insulation quilt is led Hot coefficient is larger, and pipeline heat loss is big；4, the heat preservation of compensator outer layer is used only heat preservation and is wound package, because of construction, transport, dismounting The reasons such as frequent easily cause surface layer breakage, heat preservation, water resistance failure.The attemperator that development heat insulation effect is good, performance is stablized It is very necessary for steam injection well ground flow.

Invention content

The purpose of this utility model provides one kind aiming at defect existing for existing steam injection well ground flow insulation construction Oil field gas injection well ground flow attemperator, improves the heat insulation effect of ground flow, reaches energy-saving actual use Effect, while extending the service life of ground flow attemperator, reduce production cost.

The technical solution of the utility model is：A kind of oil field gas injection well ground flow attemperator includes anticorrosive heat insulating Paint metal protection layer, the outer surface of ground flow component brush successively from inside to outside anticorrosive heat insulating paint, winding aluminium foil glass fiber fabric, Wrap up nanoporous aerogel felt, outermost layer is coat of metal, wherein aluminium foil glass fiber fabric at least wind two layers, nanoporous aerogel felt extremely One layer is wrapped up less.

The utility model has the beneficial effects that：The utility model through screen, determine used nanoporous aerogel felt, anti-corrosion every Heat paint, aluminium foil glass fiber fabric as ground flow thermal insulation material.Nanoporous aerogel felt is that silica condenses plastic in a solvent Solvent is filtered off after body, by the flexible felted thermal insulation material of a kind of nonwoven, carbon fiber and glass fibre cotton-wool ruggedized construction.With The aluminum silicate insulation material that tradition uses is compared, and nanoporous aerogel felt has the characteristics that following several respects：

（1）Thermal coefficient is low, and thermal coefficient only has 40% or so of alumina silicate and titanium ceramic thermal insulation material at a temperature of 400 DEG C；

（2）Waterproofing grade is high, is detected according to national glass fiber product Quality Supervision and Inspection Center, nanoporous aerogel heat preservation The water absorption rate of material is 0.6%, and volume water absorption rate is 0.1%, and hydrophobic rate is 99.8%；

（3）Usage time is long：The service life of product is measured using Arrhenius research method, test shows nanoporous aerogel Thermal insulation material uses 20 years under 350 DEG C of environment, and material shrinkage is less than 1%；

（4）Safety and environmental protection performance is high, does not contain poisonous and harmful substance, is harmful to human health.

Anticorrosive heat insulating paint is otherwise known as refractory ceramics heat insulating coatings, use hollow glass micro-ball and ceramic microsphere for Main component, in the thermostable heat-isolating coating of solution shape, thermal coefficient is 0.03 W/ (㎡ DEG C), heatproof is up to 1800 DEG C, key property includes：Waterproof, anticracking, fire prevention, insulation, fire-retardant, antiacid alkali, light weight, it is easy for construction the features such as.

Aluminium foil glass fiber fabric full name is aluminium foil composite glass fiber cloth, is manufactured using advanced composite technique, has compound rear aluminium Foil surfacing smooth property, light reflectivity is high, and vertically and horizontally tensile strength is big, and airtight water-tight seal effect is good.Aluminium foil glass Fine cloth surface is handled by special corrosion-inhibiting coating, is allowed to corrosion resistance and is greatly enhanced, and is excellent blanket class protective materials.

The utility model is from the aspect of insulation construction optimization, and the main body thermal insulation material used is nanoporous aerogel felt, aluminium Foil glass-fiber-fabric carries out middle level wrapping, and outer layer covers metal protection layer improves the sealing performance of attemperator, together to the maximum extent When internal layer using the anticorrosive heat insulating paint with albedo come reduce heat radiation conduct heat, to improve the heat insulating ability of ground flow Energy.

The utility model is kept the temperature relative to alumina silicate insulation quilt used at present, is had convenient for construction, energy-saving effect Outstanding feature.It is thinned using the thickness of rear attemperator, heat dissipation area is reduced, and there is waterproof, compressive property to enhance, use the longevity The advantages that life extends.The heat loss of ground flow component is effectively reduced, and is hardly damaged, Master Cost is reduced, reduces Steam injection cost effectively improves the thermal efficiency of steam injection system.

Description of the drawings

Fig. 1 is the cut-away view of the utility model structure diagram.

Specific implementation mode

The utility model is described in detail below in conjunction with attached drawing, not limits the scope of protection of the utility model.It is as described below to be only The preferred embodiment of the utility model, other equivalence changes obtained with the utility model should all belong to the utility model Protection domain.

Referring to Fig. 1, a kind of oil field gas injection well ground flow attemperator includes anticorrosive heat insulating paint 1 and metal protection layer 4, Brush anticorrosive heat insulating paint 1, winding aluminium foil glass fiber fabric 2, package nanometer airsetting successively from inside to outside in the outer surface of ground flow component 5 Rubber mat 3, outermost layer are coat of metal 4, wherein aluminium foil glass fiber fabric 2 at least wind two layers, nanoporous aerogel felt 3 at least wrap up one Layer.

The anticorrosive heat insulating paint 1 presses three secondary clearing brushings, and the brushing thickness of the first floor is set in 0.25mm-0.35mm, remaining Two layers of every layer of brushing thickness is set between 0.45mm-0.55mm.After preceding layer brushing finishes drying 15 minutes, Fang Kejin The brushing of row later layer is constructed.It is required that 5 surface cleaning of ground flow component being painted is dry, hull-skin temperature is taken the photograph in 15-60 Between family name's degree.

Inner layer is aluminium foil surface when the aluminium foil glass fiber fabric 2 is wound, surface layer is glass cloth cover, according to 45 degree of angle spiral windings, The spiral interface that the winding of aluminium foil glass fiber fabric 2 generates needs the width being overlapped to be set between 45mm-55mm.In aluminium foil glass fiber fabric 2 Layer is aluminium foil surface, and heat can be prevented to scatter and disappear with forms of radiation, and surface layer is glass cloth cover, can prevent stretching from tearing.

The aluminium foil glass fiber fabric 2 uses the proximate matter that width is 300mm, thickness is 1mm.

The nanoporous aerogel felt 3 uses the proximate matter that width is 1000mm, thickness is 10mm, it is desirable that surface cleaning without It is damaged.

When the package of nanoporous aerogel felt 3 construction, first layer nanoporous aerogel felt 3 and second layer nanoporous aerogel felt 3 Between seam staggeredly, be at least staggered 500mm, prevent seam crossing heat loss.

The shape of the utility model is varied from according to the shape of the ground flow component 5 of insulation, using in activity This attemperator on steam injection pipeline is generally circular in cross section, and uses this attemperator at the bent angle position of well compensator may It is exactly rectangular.

Using after this attemperator, site operation personnel's working strength reduces significantly, and heat insulation effect is obviously improved, and keeps the temperature The consumption of material is decreased obviously.

Claims (6)

1. a kind of oil field gas injection well ground flow attemperator, characterized in that including anticorrosive heat insulating paint metal protection layer, on ground Anticorrosive heat insulating paint, winding aluminium foil glass fiber fabric, package nanoporous aerogel felt are brushed in the outer surface of flow component successively from inside to outside, most Outer layer is coat of metal, wherein aluminium foil glass fiber fabric at least wind two layers, nanoporous aerogel felt at least wrap up one layer.

2. a kind of oil field gas injection well ground flow attemperator as described in claim 1, characterized in that the anticorrosive heat insulating paint By three secondary clearing brushings, the brushing thickness of the first floor is set in 0.25mm-0.35mm, remaining two layers every layer brushing thickness setting Between 0.45mm-0.55mm.

3. a kind of oil field gas injection well ground flow attemperator as described in claim 1, characterized in that the aluminium foil glass fiber fabric Inner layer is aluminium foil surface when winding, surface layer is glass cloth cover, according to 45 degree of angle spiral windings, the spiral of aluminium foil glass fiber fabric winding generation Interface needs the width being overlapped to be set between 45mm-55mm.

4. a kind of oil field gas injection well ground flow attemperator as claimed in claim 3, characterized in that the aluminium foil glass fiber fabric Use the proximate matter that width is 300mm, thickness is 1mm.

5. a kind of oil field gas injection well ground flow attemperator as described in claim 1, characterized in that the nanoporous aerogel Felt uses the proximate matter that width is 1000mm, thickness is 10mm.

6. a kind of oil field gas injection well ground flow attemperator as claimed in claim 5, characterized in that the nanoporous aerogel When felt package construction, the seam between first layer nanoporous aerogel felt and second layer nanoporous aerogel felt interlocks, is at least staggered 500mm。