Vacuum Insulated Tubing
Prodak: Dabol-wol 'vacuum insulated tubing' bilong stim, hevi-oil na 'geothermal' wel
Tempereja: Inap long 400 digri sevis wantaim liklik k-veliu insulesen long daunim hat lus bilong welbora
Samting na Gret: API 5CT 'seamless tubing' insait long ol gret N80-Q125
Sais: 2-7/8"×1.9" i go inap 7"×5-1/2", R2/R3, ol 'insulated pup joints' i stap
Kwaliti: Ol i testim olgeta wan wan join vacuum-, NDT + thermal testim wantaim olgeta setifiket we ol i ken painim
Olgeta 'steam-injection' o 'geothermal' projek i save tromoi bikpela mani long tanim fiul i kamap gutpela 'steam' antap long graun. Insait long wanpela 'tubing string', bikpela hap bilong dispela eneji i save lus long rot i go daun: kwaliti bilong stim i go daun, oil i stap strong, 'wax' na 'scale' i save kamap, 'casing' i save hat na, long 'permafrost', graun klostu long wel i ken stat long tanim. Taim ol opereta i kamap long dispela mak, askim i no moa olsem "moa stim?" tasol "olsem wanem yumi ken holim hat i stap we em i bikpela samting?"
Oktal Pipe'sinsulet paip, ol i save kolim tu olsem'vacuum insulated tubing' (VIT), em i bilong ol dispela wel stret. Wanwan join em i wanpela dabol-wol asembli wantaim wanpela insait prodaksen tiub na wanpela ausait karia tiub. Ol i pulap long 'annulus' wantaim 'high-performance insulation na ol i rausim i go long wanpela 'high vacuum', wantaim ol 'reflective layers' na 'getters' bilong pasim 'conduction', 'convection' na 'radiation' long wankain taim. Taim yumi skelim wantaim ol 'bare tubing', VIT string bilong mipela i save givim gutpela 'bottom-hole steam kwaliti, liklik 'annulus temperature' na liklik 'heat loss' long wan wan mita.
Ol i wokim long API 5CT tubing gred olsem N80, L80 na P110 wantaim BTC o premium ges-tait koneksen, Octalpre-insulated tubinginap long ron wantaim ol standet OCTG hanling ikwipmen, tasol i givim yu 'thermal performance' we yu nidim long 'heavy-oil steam injection', 'offshore heavy-oil developments', 'permafrost wells' na 'high-enthalpy geothermal projects'.
Octal Insulated Tubing i wok olsem wanem
Ol i wokim 'octal insulated tubing' olsem wanpeladabol-wol konsentrik paip string. Wanwan join i gat wanpela liklikinsait paipwe i save karim ol wara bilong wel na wanpela bikpelaausait paipwe i lukautim asembli. Tupela paip i weldim wantaim long tupela sait, na dispela i kamapim wanpela 'sealed'annular insulation spacenamel long tupela. Ol join i konektim insait long wel wantaim API BTC o ol gutpela 'threaded couplings', olsem na olgeta 'string' i ron wankain olsem ol 'standard tubing'.
Dispela 'thermal design' em i kamap long katim olgetatripela as rot bilong givim hat - – kondaksen, konveksen na rediesen – insait long annulus:
- Aluminium foil bilong pasim rediesen
Ol i pasim 'reflective aluminium foil' insait long 'annulus' bilong soim 'infrared radiation' i go bek long hotpela 'inner tube'. Dispela i save daunim tru 'radiant heat loss' long taim bilong bikpela hat bilong stim.
- Insulesen samting bilong kontrolim pawa
Spes namel long insait na ausait paip i pulap wantaim 'low-conductivity insulation (olsem 'perlite powder' o 'ultra-gutpela glas wul). Dispela i save mekim 'thermal resistance' bilong 'annulus' i go antap na i save pasim 'conductive heat flow'.
- Vacuum na ol samting bilong daunim konveksen
Bihain long ol i bungim, ol i save rausim 'annulus' i go long wanpela bikpela 'vacuum' na putim ol 'getters' we i save kisim ol 'residual gas' oltaim. Taim klostu i no gat ges i stap yet long muv, konvektiv hat trensfe insait long annulus i pinis.
- Pre-stres tritmen bilong insait paip bilong sefti
Ol i save givim 'controled pre-stress long insait paip pastaim long laspela weldim, olsem na 'thermal expansion' na 'contraction' long taim bilong weldim na fil operesen i no ken kamapim ol 'residual stress' we i no gutpela. Dispela i helpim long lukautim 'weld zone' na olgeta 'joint' i stap gut long planti taim bilong hatim na kol.
Long bungim dispela dabol-paip straksa wantaim'radiation shielding', strongpela 'insulation', bikpela 'vacuum' na 'inner-tube' pre-stress, Octal insulated tubing i save daunim hat lus long welbore taim em i wok yet olsem wanpela OCTG tubing string we yumi save long en.
Wanpela bikpela samting bilong enjiniaring em olsem, 'thermal performance' i no kamap long ol samting bilong pasim san tasol. Long fil sevis, lus bilong hat i save kisim bikpela hevi long 'annulus stability', 'end-weld integrity' na 'joint-area thermal control bihain long planti taim 'temperature cycling'. Long dispela as ol 'pre-stressed insulated tubing em i gutpela tru long 'cyclic steam service' na i no long 'steady-temperature service tasol.
Ol bikpela wok - we ol i save yusim 'octal insulated tubing'
| Aplikesen senario | salens bilong wok | Olsem wanem 'Octal insulated tubing' i helpim |
|---|---|---|
| Dip-wara / long solwara hevi-oil wel | Hat bilong ol hotpela wara i save go insait long 'casing annuli', na kamapim presa bilong 'annulus' na mekim hevi oil i kol taim em i go antap. | Vacuum insulated tubingi katim hat i go insait long annulus, i mekim annulus presa i stap gut na i mekim ol wara i kamap i stap hat moa, na i mekim hevi-oil i ken ron gut na i no gat ekstra hat bilong en. |
| Ol 'hydrate-sensitive gas wells & hydrate formations | Long taim bilong 'shut-in o low-rate flow, tempereja i pundaun inap long kirapim 'methane-hydrate fomesen insait long welbore o klostu long ol 'hydrate-bearing leia. | Wanpela moa stebol tempereja profail i save daunim taim bilong kamapim haidret, i save skruim seif shut-in windo na helpim long lukautim ol haidret-bearing fomesen klostu long rot bilong wel. |
| Stim injeksen bilong hevi oil (SAGD / CSS) | Stim i save lusim kwaliti bilong ol konvensenel paip, tasol 'casing' na simen i save lukim bikpela 'thermal cycling' na hevi bilong 'steam channeling'. | Vacuum insulated tubing (VIT)i save givim hatpela stim i go long 'reservoir', daunim hat i go insait long 'casing'/simen na daunim hevi bilong 'thermal fatigue' na 'steam channeling' long 'annulus'. |
| Onshore wax-prone crude & flow assurance | Krud i save kol insait long 'tubing string', na dispela i save kamapim ol 'wax', 'scale' o 'asphaltene' we i save katim prodaksen na i mas klinim planti taim. | Ol 'insulated tubing' i save daunim kol, i save holim wara i stap antap long 'wax look temperature' longpela taim na i save skruim taim bilong klinim-aut, na dispela i helpim prodaksen long stap klostu long mak bilong disain. |
| Ol wel bilong 'geothermal' na 'hot-wara | Hat i save lus long ol dip hot fomesen i go long ol liklik wara na welbora, na dispela i save daunim hat bilong wara na wok bilong diwai. | Insulation i save daunim "sot-seket" hat lus insait long welbora, olsem na moa hat i save go long ol ikwipmen antap, na dispela i save helpim distrik-hiting o pawa-jeneresen efisiensi. |
| Permafrost na ol wel bilong Arctic | Ol 'hot injection' o 'production string' inap long mekim 'permafrost' i kamap tait klostu long wel, na dispela inap long bagarapim 'pad stability' na ol 'surface facilities'. | Ol 'octal insulated tubing' i save kamapim wanpela 'thermal barrier' namel long 'hot inner flow' na 'outer casing', na dispela i helpim long lukautim gut 'permafrost' na lukautim ol faundesen long olgeta taim bilong wel. |
Yumi ken kliagut long famili bilong ol prodak long rot bilong 5-pela rot bilong yusim: hevi-oil thermal rikaveri, stopim 'permafrost' long ol oil na ges fil, 'anti-wax wellbores, 'geothermal heating' na pawa jeneresen, na 'hot-spring wel. Dispela i helpim long soim olsem 'range' i no inap long 'steam injection' tasol; ol i ken makim tu bihainim wok bilong lukautim hat- insait long hot-wara na geothermal sevis.
Hot-spring wel
Long divelopmen bilong hot-spring, gutpela bilong 'insulated tubing' o 'insulation pipe' em i no bilong daunim lus bilong hat tasol, tasol tu long holim moa gutpela hat i stap long dip i go autlet. Insait long ol dispela kain projek, bikpela tempereja bilong autlet na moa stebol hat presevesen i ken helpim komesal veliu bilong wel na daunim tempereja lus long taim bilong givim.
Sais Reinj na Besik Spesifikasen
Long mekim wok bilong skelim ol model i kamap isi, ol i putim ol sais infomesen insait long dispela seksen long ol seperet tebol grup. Namba wan tebol i karamapim ol standet 'vacuum insulated tubing' sais famili we ol i save yusim long putim stim, hevi-oil prodaksen na ol narapela oilfil thermal sevis. Namba tu tebol grup i putim ol sais bilong ol 'prestressed insulated tubing' na ol 'insulation gred' bilong 'cyclic thermal duty'. Namba tri tebol i soim ol komon Octal insulesen paip model we ol i save yusim moa stret long 'geothermal heat-exchange na hot-spring heat-presevesen sevis. Sapos yu putim ol dispela sais famili i stap narapela narapela, dispela i mekim RFQ riviu i kamap isi na i helpim long luksave long ol 'conventional oilfield thermal strings' na ol 'geothermal insulation-pipe configurations.
Ol 'octal vacuum insulated tubing' i stap insait long ol dispela sais famili bilong ol oilfil na stim-sevis aplikesen.
| Sais kod | Ausait paip (inch / mm) | Paip insait (inch / mm) | Klostu. flow ID (mm) | Koneksen OD (mm) | Hevi bilong yunit (kg/m) |
|---|---|---|---|---|---|
| 73 × 40 | 2-7/8" × 5.51 mm wol (73.02 mm OD) | 1.9" × 3.68 mm wol (48.26 mm OD) | ≈ 40.9 | ≈ 88.9 (BTC / premium) | ≈ 13.5 |
| 89 × 50 | 3-1/2" × 6.45 mm wol (88.9 mm OD) | 2-3/8" × 4.83 mm wol (60.32 mm OD) | ≈ 50.7 | ≈ 108 | ≈ 20.5 |
| 114 × 76 | 4-1/2" × 6.88 mm wol (114.3 mm OD) | 3-1/2" × 6.45 mm wol (88.9 mm OD) | ≈ 76.0 | ≈ 132.1 (BTC) | ≈ 32 |
| 140 × 101 | 5-1/2" × 7.72 mm wol (139.7 mm OD) | 4-1/2" × 6.35 mm wol (114.3 mm OD) | ≈ 101.6 | ≈ 160 (BTC) | ≈ 43 |
| 178 × 124 | 7" × 9.19 mm wol (177.8 mm OD) | 5-1/2" × 7.72 mm wol (139.7 mm OD) | ≈ 124.3 | ≈ 200 (BTC) | ≈ 65 |
Long ol projek we i gat ol 'thermal cycling' we i save kamap planti taim, ol i gat wanpela 'prestressed insulated tubing size' famili wantaim 'insulation-grade classification tu. Ol dispela veliu i gutpela long soim aninit long standet VIT tebol olsem wanpela suplementari refrens bilong 'thermal-sevis seleksen, moa yet we ol baia i mas skelim sais, koneksen envelop, hevi bilong yunit na insulesen pefomens long wankain riviu step.
| Sais kod |
Ausait paip (inch / mm) | Paip insait (inch / mm) | Flow ID / annulus gap (mm) |
Kain koneksen / OD (mm) |
Hevi bilong yunit (kg/m) |
|---|---|---|---|---|---|
| 73 × 40 | 2-7/8" × 5.51 mm wol (73.02 mm OD) | 1.9" × 3.68 mm wol (48.26 mm OD) | 40.9 / 6.87 | USS / 88.9 | 13.5 |
| 89 × 50 | 3-1/2" × 6.45 mm wol (88.9 mm OD) | 2-3/8" × 4.83 mm wol (60.32 mm OD) | 50.66 / 7.84 | USS / 108 | 20.5 |
| 114 × 76 | 4-1/2" × 6.88 mm wol (114.3 mm OD) | 3-1/2" × 6.45 mm wol (88.9 mm OD) | 76 / 5.82 | BTC / 132.1 | 32 |
| 140 × 101 | 5-1/2" × 7.72 mm wol (139.7 mm OD) | 4-1/2" × 6.35 mm wol (114.3 mm OD) | 101.6 / 4.98 | BTC / 160 | 43 |
| 178 × 124 | 7" × 9.19 mm wol (177.8 mm OD) | 5-1/2" × 7.72 mm wol (139.7 mm OD) | 124.26 / 9.86 | BTC / 200 | 65 |
Long sait bilong 'geothermal heating', 'geothermal power generation' na ol hot-spring wel, prodak famili i gat tu wanpela seperet Octal insulesen paip model famili. Sapos yu soim ol dispela model insait long wanpela indipenden tebol, dispela i mekim ol aplikesen bilong 'geothermal' na 'hot-wara' i isi long skelim na yu no ken miksim ol wantaim ol sais bilong 'steam-service tubing, na dispela i givim ol baia wanpela klia stating poin long 'heat-preservation channel design na model seleksen.
| Sais kod |
Ausait paip (OD / WT, mm) | Paip insait (OD / WT, mm) | Bore ID / annulus gap (mm) |
Kain koneksen / OD (mm) |
Hevi bilong yunit (kg/m) |
|---|---|---|---|---|---|
| 89 × 62 | 89 × 4 | 70 × 4 | 62 / 5.5 | NU / 108 | 15.2 |
| 95 × 62 | 95 × 4.5 | 73.02 × 5.51 | 62 / 6.49 | EU / 108 | 20 |
| 114 × 81 | 114.3 × 5 | 89 × 4 | 81 / 7.65 | BTC / 127 | 22.6 |
| 140 × 100 | 139.7 × 6 | 108 × 4 | 100 / 8.87 | BTC / 154 | 31 |
| 219 × 182 | 219 × 7 | 194 × 6 | 182 / 5.5 | SC / 234 | 66 |
Ol mak bilong pefomens bilong hat
Long mekim wok enjiniaring i kamap isi, ol i save givim 'Octal insulated tubing' long plantiol mak bilong hat:
- Gret B– λ ≈ 0.06–0.04 W/(m·℃)
- Gret C– λ ≈ 0.04–0.02 W/(m·℃)
- Gret D– λ ≈ 0.02–0.006 W/(m·℃degree )
- Gret E– λ ≈ 0.006–0.002 W/(m·℃)
Sapos mak bilong en i go antap, orait 'heat loss' bilong wanpela mita i go daun na em i gutpela moakwaliti bilong stim bilong hul aninit long -bilong wanpela kondisen bilong pes. Ol enjiniaring tim bilong mipela i ken wokim model bilong 'heat loss' na 'depth' bai yu ken lukim wanem kain 'ordinary tubing', 'basic'pre-insulated tubingna hai-greid Oktal VIT bihainim spesifik wel profail bilong yu.
| Gret bilong insulesen | B | C | D | E |
| Themal conductivity λ W / (m· digri ) |
0.06 > λ >= 0.04 | 0.04 > λ >= 0.02 | 0.02 > λ >= 0.006 | 0.006 > λ >= 0.002 |
Long mekim wok bilong makim, ol i mas ritim 'thermal grade' wantaim 'service duty'. Insait long ol projek bilong putim stim-injeksen na hevi-oil, liklik 'thermal conductivity' i min olsem gutpela kwaliti bilong stim long dip bilong wara na liklik hat i go insait long 'annulus'. Insait long ol projek bilong 'geothermal' na 'hot-spring, liklik 'thermal conductivity' i min olsem 'outlet temperature' i go antap na i gat moa hat long graun. Long dispela as, 'insulation grade' i mas stap wantaim 'project energy balance', na i no ken stap olsem wanpela 'isolated catalog number'.
Thermal Design & k-Value Performance for Octal Insulated Tubing
Long ol manmeri husat i baim ol 'insulated tubing', ol bikpela askim i no olsem "yu gat wanem sais?", tasol:
- Hamas 'heat loss' mi ken sevim insait long hul wara bilong mi?
- Dispela disain i gutpela long dip-wara, stim injeksen o onshore kondisen?
- Mi ken lukim k-veliu na tempereja profail pastaim long mi oda?
Long bekim ol dispela, Octal i tritiminsulet paipolsem wanpela sistem we ol i wokim, i no wanpela-taip-i fit long-olgeta prodak.
Long wok bilong disain, ol i save makim ol 'insulated tubing' long 'service objective', 'heat duty' na 'well condition', na i no long OD tasol. Riviu i save stat wantaim wok mak: lukautim gutpela bilong stim i go inap long dip bilong wara insait long CSS o SAGD wel, daunim hat lik i go long annulus insait long dip-wara prodaksen, daunim tempereja i go daun long ol wel we i gat 'wax-prone onshore, lukautim ol ais fomesen long ol permafrost eria, o holim gut ol ples we ol i ken yusim long hat na hat hot-wara sevis. Long dispela hap, ol i makim 'tubing string' long 'insulation grade', 'annulus vacuum target', 'support layout', 'connection thermal control' na 'service-laip rikwaemen aninit long 'repeated thermal cycling'.
Dispela rot i givim ol baia wanpela gutpela as bilong skelim long taim bilong projek. Noken skelim ol 'tubing' long sais na kain tret tasol, ol i ken sekim dispela 'heat loss', 'bottom-hole' o 'outlet temperature', 'annulus temperature', 'well-depth suitability' na sapos konstraksen i bilong putim stim, 'deep-water flow assurance', 'onshore duty' o 'geothermal duty' o narapela ol rot bilong lukautim hat-. Dispela em i tingting bilong ol seksen aninit: konfiguresen pastaim, bihain 'heat-transfer kontrol insait long 'annulus', bihain 'k-value na tempereja modeling, na las tru 'service life' na 'length range'.
1. Ol konfiguresen i stret long ol kondisen bilong fil
Instead bilong wanpela konstraksen tasol, Octal i save givim planti insulation konfiguresen we ol i wokim long wankain 'seamless inner / auter pipe concept'. Long dip-wara prodaksen mipela i lukluk long longpela taim stebiliti na ol liklik k-veliu tru long bosim annulus tempereja na 'hydrate risk'; long ol projek bilong stim (CSS / SAGD) mipela i tok strong long hai-temperature inap na strong bilong sakim 'thermal cycling'; long lukautim ol wel long graun na lukautim 'permafrost' mipela i save skelim strong bilong insulesen wantaim kos na ol hevi bilong masin. Olgeta wan wan konfigurasen i gat mak bilong insulesen, level bilong 'vacuum' na 'internal support layout' bilong en, olsem na yu ken makim VIT string wantaim fil bilong yu na noken senisim fil i go long 'tubing'.
2. Kontrol bilong konveksen, kondaksen na rediesen insait long annulus
Ol disain bilong mipela i bungim tripela rot bilong daunim hat i go namel long paip insait na ausait:
- Konveksen kontrol– ol i rausim 'annulus' i go long wanpela mak bilong 'vacuum', o pulimapim wantaim 'inert gas' we i stret, olsem na i no gat planti wara i stap bilong karim hat long rot bilong 'convection'. Ol 'getters' insait long 'annulus' i helpim long holim dispela kondisen long laip bilong wel.
- Kondaksen kontrol– ol sapot we i stap gut long spes bilong en i save mekim ol paip insait na ausait i stap stret na tu i daunim eria bilong metal kontek, na i holim spes bilong insulation maski i gat senis long lod na tempereja.
- Rediesen kontrol– 'multi-layer insulation wantaim ol 'reflective' na 'non-conductive' (wankain olsem ol MLI sistem) i save daunim 'radiant heat transfer' long bikpela 'steam temperature'.
Sapos i gat nid, ol i save putim moa insulesen klostu longeria bilong joinolsem na ol koneksen i no ken kamap olsem ol "hot spot" insait long string.
3. k-value based performance and thermal modeling
Pefomens bilong hat em i olsem wanpelak-value(hat lus long BTU/hr·ft· digri F o W/m· digri ). Ol 'octal insulated tubing' i stap long planti k-value bands, stat long ol dip-wara level we ol i wokim bilong liklik hat lik, i go long ol bikpela-k tasol moa ekonomik gred bilong moderet-temperature onshore sevis.
Long wok bilong projek, enjiniaring tim bilong mipela i ken:
- skelim k-values bilong insulated tubing konfiguresen yu makim,
- rantempereja-nagensim-dip profailbilong spesifik wel jiometri bilong yu, na
- skelim ol samting olsem "konvensenel 'tubing' na 'insulated tubing'" o "mid-greid na hai-greid VIT".
Dispela i givim yu klia lukluk long kwaliti bilong stim bilong hul aninit long -, tempereja bilong kesing/annulus na tempereja bilong autlet antapbipoyu komitim yu yet long wanpela string disain.
Wanpela isipela tebol bilong skelim daunbilo i soim olsem wanem liklik 'thermal conductivity' i save kamap wantaim bikpela 'heat-extraction power aninit long ol narapela narapela 'bottom-temperature kondisen bilong hul.
| Kondaktiviti bilong hat [W/(m·K)] |
Klostu. hat-pawa bilong rausim long 55 digri (kW) |
Klostu. hat-pawa bilong rausim long 60 digri (kW) |
Klostu. hat-pawa bilong rausim long 65 digri (kW) |
Klostu. hat-pawa bilong rausim long 70 digri (kW) |
|---|---|---|---|---|
| 0.02 | ≈ 520 | ≈ 565 | ≈ 610 | ≈ 650 |
| 0.05 | ≈ 455 | ≈ 495 | ≈ 535 | ≈ 575 |
| 0.10 | ≈ 405 | ≈ 440 | ≈ 475 | ≈ 505 |
| 0.20 | ≈ 350 | ≈ 380 | ≈ 410 | ≈ 440 |
| 0.40 | ≈ 300 | ≈ 325 | ≈ 350 | ≈ 375 |
Dispela wankain tingting bilong enjiniaring i go tu long ol wok bilong 'geothermal' na 'hot-wara. Tripela 'downhole thermal-channel konsept i stap olsem Skim A, B na C. Skim A i makim wanpela welbora we i no gat gutpela insulet tritmen, we moa hat i save kisim na lus long hap bilong putim hat-. Skim B i putim insulasen antap long hap bilong seksen long helpim gutpela yusim bilong 'geothermal'. Skim C i wokim wanpela gutpela 'downhole heat-preservation channel bai ol i ken pusim 'geothermal utilisation' i go moa, moa yet long ol bikpela '-heat wel. Dispela em i bikpela samting bikos em i konektim wok bilong makim paip long wok bilong lukautim hat bilong sistem na i no long sais bilong paip tasol.
Narapela rot bilong yusim em 'coaxial heat-exchange route we ol i yusim 'casing' na 'center-pipe arrangements, we ol i yusim 'insulation pipe' long lukautim gutpela 'geothermal energy' arere long 'wellbore'. Long ol projek bilong 'geothermal heating' na pawa-jeneresen, seleksen i save kamap long 'outlet temperature', 'circulation rate', 'single-well heat extraction' na 'annual heat output', i no OD na kain tret tasol.
Wanpela PERT II keis i stap aninit long soim olsem wanem ol i save skelim autlet tempereja na singel-wel pawa aninit long wanpela 'geothermal operating condition'.
| Paramita | PERT II pefomens long 2500 m wel dip |
|---|---|
| Rot bilong aplikesen | PERT II |
| Dip bilong wel | 2500 m |
| Tempereja bilong hul aninit | 85 digri |
| Flo reit | 30 m³/h |
| Kondisen bilong opereting | Stedi-stet kondisen |
| Givim bek - wara tempereja | 20 digri |
| Tempereja bilong wara aninit | 41 digri |
| Tempereja bilong wara long autlet | 29.7 digri |
| Wanpela-wel pawa | samting olsem 338 kW |
Ol kain 'geothermal' konfigurasen i gat 273.05 × 11.43 mm kesing wantaim 178 × 135 / 194 / 154 mm we i wankain olsem 'insulated channel dimensions' bilong samting olsem 4000-4500 m wel na samting olsem 3750-4500 kW autput, wanpela 244 × 11.43 mm kesing wantaim 178 × 135 / 194 / 154 mm we i wankain olsem 'insulated channel dimensions' bilong samting olsem 4000-4500 m wel na samting olsem 3750-4500 kW autput, wanpela 244 × 11.43 mm kesing wantaim 178 × 135 / 194 / 154 mm. 140 × 100 / 154 mm klas arensmen bilong samting olsem 3100 m wel na klostu 1250-1500 kW, wanpela 219.1 × 10.16 mm kesing wantaim 140 × 100 / 154 mm klas arensmen bilong samting olsem 3000 m wel na klostu 150-100 kW wanpela 177.8 × 9.19 mm kesing wantaim 114 × 81 / 127 mm klas arensmen bilong samting olsem 2500-3000 m wel na klostu 750-1000 kW, na wanpela 139.7 × 7.72 mm kesing wantaim 89 × 62 mm klas arensmen bilong samting olsem 2500-3000 m wel na klostu 400-600 kW.
Bilong mekim wok bilong stretim projek i kamap isi, ol i brukim rot bilong 'geothermal' i go long H2000, H3000 na H4000. Long sait bilong wok, ol dispela i makim ol 'geothermal solutions' we i wok long go daun na i go antap, na i helpim ol baia long stretim 'well depth' na 'heat-extraction target wantaim stretpela 'insulation-paip rot.
Wanpela stretpela skelim bilong pefomens i helpim tu long kliarim we rot bilong insulesen-paip i givim gutpela pe long PERT II. 'Thermal conductivity' bilong PERT II em i olsem 0.42 W/(m·K), na liklik long 0.02 W/(m·K) bilong Octal insulesen paip. Long 70 digri 'downhole-temperature skelim, hat-ekstraksen pawa em i olsem 375 kW long PERT II na olsem 650 kW long Octal insulesen paip, em i go antap long samting olsem 275 kW, o klostu 73%. Long narapela skelim bilong wanpela 2500 mita wel wantaim samting olsem 60 digri bottom-hole tempereja, 30 m3/h flow rate na 20 digri riten-wara kondisen, PERT II i kamap long samting olsem 26 digri autlet tempereja na 210 kW singel-wel pawa, taim Octal insulasen i kamap long samting olsem 3533 digri kW, na dispela i mekim pawa bilong kisim hat bilong wanpela wel i kamap gutpela moa long 243 kW, o samting olsem 116%.
Tebol bilong skelim aninit i soim wankain tes beis na pefomens difrens namel long PERT II na Octal insulesen paip.
| Scenario / Metric | PERT II | Oktal insulesen paip | Kamap gut moa |
|---|---|---|---|
| Dip bilong wel (m) | 2500 | 2500 | Wankain tes beis |
| Tempereja bilong hul aninit long - (digri) | 60 | 60 | Wankain tes beis |
| Flo reit (m3/h) | ≈ 30 | ≈ 30 | Wankain tes beis |
| Givim bek - wara tempereja ( digri ) | 20 | 20 | Wankain tes beis |
| Thermal conductivity [W/(m·K)] | 0.42 | < 0.02 | Daunim hat kondaktiviti |
| Outlet-wara tempereja (digri) | 26 | 33 | +7 digri |
| Wanpela-wel pawa (kW) | ≈ 210 | ≈ 453 | +243 kW / samting olsem 116% |
4. Ol opsen bilong laip na longpela bilong sevis
Ol i wokim 'octal insulated tubing' longLongpela bilong Reinj 2 na Reinj 3wantaim wanpela laip bilong disain we i stret long longpela taim dip-wara, stim-injeksen o geothermal sevis. Integriti bilong 'vacuum', 'insulation performance' na 'welds' olgeta i inap long sanap strong long planti yia bilong 'thermal cycling', olsem na k-veliu yu lukim long disain model em i k-veliu yu ken tingim long fil.
Ol samting, mak na koneksen
Ol i wokim 'octal insulated tubing' long ol API 5CT 'tubing' gred:
- N80, L80-1, L80-1Cr, L80-3Cr, L80-9Cr
- Q125, S135 na ol narapela hai-strong gret bilong HPHT wel
- Standet koneksen emAPI BTC, na mipela i ken givim tu:
- ol spesel koneksen bilong ges-tait (olsem metal-i go long-metal premium tret we i wankain long pefomens bilong ol hai-end ges-wel paip).
- integral na semi-flush opsen bilong kliarens-kritikal lain.
- ol 'pup joints', 'crossover' na ol narapela samting bilong en.
Dispela i min olsem yu kisim ol gutpela samting bilong'vacuum insulated tubing', tasol ol wokman bilong rig bilong yu i save ranim yet wantaim ol pasin bilong lukautim OCTG.
Ol data bilong 'representative connection-level i ken helpim ol baia long sekim ol kendidet prodak pastaim long RFQ i pinis. Ol kain insulesen-paip model i gat:
· 140 × 100- 5-1/2" BTC, koneksen OD klostu154 mm, hevi bilong yunit inap olsem31 kg/m, longpela bilong refrens long1429 cm, ausait-paip klasN80 139.7 × 6, strong bilong presa bilong ausait-paip klostu longBikpela o wankain olsem 23 MPa, inner-pipe classN80 108 × 4, strong bilong presa insait long paip i winim o wankain olsem36 MPa, 'thermal conductivity' long 100 digri wokλ < 0.02 W/(m·K)
· 189 × 62 - 3-1/2" NU, koneksen OD long108 mm, hevi bilong yunit inap olsem15.2 kg/m, longpela bilong refrens long39 ft, ausait paipN80 89 × 4,strong bilong presa bilong ausait-paip klostu longBikpela o wankain olsem 25.8 MPa, insait paipJ55 70 × 4, strong bilong presa bilong paip insait longBikpela o wankain olsem 38 MPa, 'thermal conductivity' long 100 digri wokλ < 0.02 W/(m·K)
· 1219 × 182- 8-5/8" SC, koneksen OD klostu233 mm, hevi bilong yunit inap olsem65.7 kg/m, longpela bilong refrens long70 fit,ausait paip 20# 219 × 7, strong bilong presa bilong ausait-paip klostu longBikpela o wankain olsem 9 MPa, insait paip20# 196 × 6, strong bilong presa bilong paip insait longBikpela o wankain olsem 13 MPa, 'thermal conductivity' long 100 digri wokλ < 0.02 W/(m·K)
· 1114 × 81 - 4-1/2" BTC, koneksen OD klostu127 mm,hevi bilong yunit inap olsem22.6 kg/m,longpela bilong refrens long96 ft, ausait paipN80 114 × 5,strong bilong presa bilong ausait-paip klostu longBikpela o wankain olsem 24.3 MPa, insait paipN80 89 × 4, strong bilong presa bilong paip insait longBikpela o wankain olsem 43 MPa, 'thermal conductivity' long 100 digri wokλ < 0.02 W/(m·K)
Ol dispela ditel i bikpela samting bikos wok bilong baim ol 'insulated-pipe i no save kamap long 'thermal performance' tasol. Kain koneksen na OD bilong kapol i save afektim 'running clearance', 'compatibility' wantaim 'well structure' na 'practicality' bilong 'field instolation'. Sapos yu putim ol dispela model-level ditel long pes, dispela i mekim toktok i kamap gutpela moa long tupela enjiniaring riviu na skelim bilong baim samting.
Wok bilong wokim na kwaliti asurens
Rot bilong mipela long wokim ol 'insulated tubing' em i kamap long gutpela bilong 'vacuum annulus' na tu long wok bilong en:
- Wok bilong redim paip we i no gat mak– ol i wokim ol ausait na insait paip long hot-rolim seamles paip, katim i go longpela, hat-tritim na 100 % NDT-sekim. Ol i save 'shot-blastim ol samting bilong mekim ol i pas gut na i stap klin.
- Insulesen asembli– ol i karamapim o putim 'perlite' / 'glass wool', 'reflective foil' na ol 'spacers' insait long paip bihainim 'thermal grade' ol i makim, na bihain ol i putim insait long ausait paip.
- Pastaim long stretim na weldim– ol i putim 'pre-stretch long insait bilong 'tube', na bihain ol i weldim tupela arere bilong pasim 'annulus' na holim 'alignment'.
- Vacuum prosesing– ol i rausim 'annulus' i go long mak bilong 'vacuum' we ol i makim; ol 'getters' i save wok long holim liklik presa long laip bilong string.
- Ol tes bilong 'leak' na 'vacuum integrity'– ol i save testim ol 'weld' na 'vacuum port' (NDT na 'leak test') long painimaut olsem 'annulus' i tait o nogat.
- Tes bilong 'thermal conductivity'– ol 'sample joints' bilong wanwan 'batch' i kisim 'λ testing' long sekim 'insulation grade' bilong en.
- Wokim tret na pinisim– ol i wokim ol koneksen long masin, ol i skelim long API 5B o ol premium droing, ol i putim 'phosphated' na lukautim ol 'thread', na ol i makim na putim ol 'joint' long en bilong karim ol i go.
Olgeta tes– mekanik, NDT, vekim, 'thermal' na 'thread inspection' – em i pas wantaimnamba bilong hat na namba bilong join, na ol i raitim long EN 10204 3.1 / 3.2 paket bilong tok orait long projek.
Rot bilong prodaksen i ken kamap klia moa olsem redim na bagarapim pinis bilong paip, hat tritmen, sekim, katim na klinim insait/ausait bilong paip; karamapim aluminium foil na ol samting bilong pasim san; bungim ol ausait na insait paip; pastaim long stretim na weldim; 'vacuum extraction' wantaim 'leak checking' na 'X-ray inspeksen; annulus-vacuum stabilization; 'thermal-conductivity testing; na ol laspela wok olsem 'threding', 'hydrotest' na 'export packing'. Dispela ekstra proses diskripsen em i gutpela long putim bikos em i givim ol baia wanpela klia rot bilong kisim stat long 'raw tube' i go long pinis 'insulated joint'.
Long sait bilong kisim samting, hevi bilong bisnis em i no sapos prodak i stat wantaim liklik hat lus tasol, tasol sapos annulus i stap pas yet, sapos weld eria i stap gut bihain long 'thermal cycling' na sapos ol pinis join i ken lusim wantaim ol 'repeatable threading' na 'traceable inspection records'. Dispela em i as na QA seksen i mas stap wantaim 'thermal test', 'vacuum integrity', NDT, koneksen inspeksen na ol pepa wantaim na i no ken tingim ol olsem ol narapela kleim.
Olsem wanem Prodak bilong mipela i narakain long ol narapela "Insulated Tubing" we yu ken lukim long intanet
Planti wok painim bilonginsulet paipi makim ol samting antap long graun olsemPEX paip we i gat insulet pinisbilong distrik-heting lup,kopa paip we i gat insulet pinisbilong HVAC,'insulated heat shrink tubing'bilong ol lektrik kebol, o ol samting i gat nem olsemdekron insulated tubingol i save yusim long ol instramen bilong indastri. Ol dispela prodak i gutpela long wok bilong ol, tasol ol ii no disainim bilong daunim-hole 350-400 digri sevis, bikpela kollaps lod o API 5CT rikwaemen.
Octal i save givim narapela kategori:'steel vacuum insulated tubing' bilong oil, ges na 'geothermal' wel. Prodak bilong mipela:
- i yusim API 5CT-greid ain paip na i no plastik o kopa.
- em i wokim bilong karim stim na kamapim ol wara aninit long bikpela presa long dip ples.
- i bung wantaim ol OCTG kesing string, ol ikwipmen bilong welhet na ol tul bilong daun-hole.
- na i save go insait long wankain level bilong OCTG tes olsem prodaksen paip, antap long ol 'vacuum' na 'thermal' tes.
Olsem na sapos projek bilong yu i nidimPEX paip we i gat insulet pinisokopa paip we i gat insulet pinislong ol 'surface lines', ol dispela em ol seperet prodak; taim yu nidim ol 'insulated steel tubing' we inap long stap insait long hul wara yet,Octal vacuum insulated tubingem i stretpela rot bilong stretim hevi.
Octal i save saplaim narapela kain: 'steel vacuum insulated tubing' na 'insulation pipe' bilong ol wel bilong oil, ges, jiotemal na hot-wara. Ol i wokim dispela prodak long ol 'steel tubulars' na i no long plastik o kopa, ol i wokim bilong karim stim o hatpela wara aninit long ol gutpela kondisen, i bung wantaim ol OCTG string na ol ikwipmen bilong daunhol, na i go insait long mekanikel, 'thermal', 'vacuum' na 'connection-' kwaliti kontrol.
Wanpela moa samting i narapela em olsem dispela prodak famili i no ken kamap olsem 'steam-injection tubing' bilong ol oil wel tasol. Em i gat tu wanpela 'insulation-paip rot bilong 'geothermal heating', 'geothermal power generation' na ol 'hot-spring wells, we ol i save skelim veliu bilong en long bikpela 'outlet temperature', gutpela 'heat preservation' na strongpela 'single-well heat-extraction efficiency.
FAQ
FAQ 1 – Wanem taim mi mas yusim ol 'insulated tubing' na noken yusim ol 'regular tubing'?
FAQ 2 – Wanem sais na gret i stap bilong ol 'insulated tubing'?
FAQ 3 – Wanem ol tempereja na k-values we Octal insulated tubing inap long karim?
Ol setifikesen
CE Setifiket
ISO 9001 Setifiket
API Q1 Setifiket
ABS Setifiket
AP-5L Setifiket
API-5CT Setifiket
Kain sevis:stim injeksen (CSS / SAGD), hevi-oil prodaksen, dip-wara, geothermal, permafrost wel
Straksa:'concentric double-wall seamless steel pipe', 'evacuated annulus' wantaim 'multilayer insulation'
Sais (ausait × insait):
73 × 40 mm (2-7/8" × 1.9")
89 × 50 mm (3-1/2" × 2-3/8")
114 × 76 mm (4-1/2" × 3-1/2")
140 × 101 mm (5-1/2" × 4-1/2")
178 × 124 mm (7" × 5-1/2")
Longpela:Range 2 (R2) na Range 3 (R3), ol 'insulated pup joints' i stap
Ol mak bilong ain:N80, L80-1 / 1Cr / 3Cr / 9Cr, Q125, S135 na ol narapela API 5CT gret
Ol koneksen:API BTC olsem standet, opsenel ges-tait premium koneksen
Ol mak bilong hat (k-value):planti insulesen level, k i go daun long samting olsem. 0.002–0.006 W/(m· digri ) i dipen long gret
Maks. tempereja bilong wok:inap long 400 digri (i dipen long aplikesen-)
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