DK200000893A - Improving flow properties of wax-containing crude oil or natural gas liquid - Google Patents
Improving flow properties of wax-containing crude oil or natural gas liquid Download PDFInfo
- Publication number
- DK200000893A DK200000893A DK200000893A DKPA200000893A DK200000893A DK 200000893 A DK200000893 A DK 200000893A DK 200000893 A DK200000893 A DK 200000893A DK PA200000893 A DKPA200000893 A DK PA200000893A DK 200000893 A DK200000893 A DK 200000893A
- Authority
- DK
- Denmark
- Prior art keywords
- crude oil
- natural gas
- wax
- gas liquid
- flow properties
- Prior art date
Links
- 239000010779 crude oil Substances 0.000 title abstract description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title abstract 6
- 239000007788 liquid Substances 0.000 title abstract 3
- 239000003345 natural gas Substances 0.000 title abstract 3
- 230000000994 depressogenic effect Effects 0.000 abstract 2
- 238000000034 method Methods 0.000 description 6
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
Description
Patentkrav 1. Fremgangsmåde til forbedring af flydeegenskaberne hos en voksholdig råolie eller et gaskondensat eksklusiv Bahrain harpiks indeholdende asphaltener og andre voksholdige råolier eller gaskondensator der fremviser ikke identiske øvre og nedre flydepunkt (ASTM D97/D5853) indeholdende tilsætning af en syntetisk flydepunktssænker, kendetegnet ved, at den syntetiske flydepunktssænker tilsættes til råolien eller gaskondensatet ved en temperatur ikke over 20 °C under råoliens eller gaskondensatets inversionspunkt, som bestemt ved en fremgangsmåde, der omfatter opvarmning af prøverne af råolien eller gaskondensatet til varierende temperaturer, hvilket bestemmer prøvernes flydepunkt efter køling; afbildning af flydepunkterne bestemt som en funktion af opvarmningstemperaturerne, ved hvilke flydepunktet er blevet reduceret til dets minimumsværdi, hvilken temperatur defineres som inversionspunkt. 2. Fremgangsmåde ifølge krav 1, kendetegn- e t ved, at den syntetiske flydepunktssænker tilsættes til råolien eller gaskondensatet ved en højere temperatur end 10 °C under inversionspunktet, fortrinsvis ved en temperatur ved eller over inversionspunktet. 3. Fremgangsmåde ifølge krav 1 eller 2, kendetegnet ved, at den syntetisk flydepunktsænker omfatter et stof med formlen I: hvor m = 20-300, fortrinsvis m = 25-100, og især m = 50-80, n = 5-50, fortrinsvis n = 5-25, og især n = 8-15, og R symboliserer et carbonhydrid, fortrinsvis et alifatisk carbonhydrid, og især et alifatisk carbonhydrid bestående af 2-20 karbonatomer. 4. Fremgangsmåde ifølge et vilkårligt af de foregående krav, kendetegnet ved, at den syntetiske flydepunktssænker tilsættes i en mængde på 5-2000 ppm, fortrinsvis 20-500, og især 20-100 ppm. 5. Fremgangsmåde ifølge et vilkårligt af de foregående krav, kendetegnet ved, at den syntetiske flydepunktssænker injiceres i borehullet.Claim 1. A process for improving the flow properties of a waxy crude oil or gas condensate exclusive Bahrain resin containing asphaltenes and other wax crude oils or gas condensers which do not exhibit identical upper and lower flow points (ASTM D97 / D5853) containing the addition of a synthetic peg adding the synthetic floating point submersible to the crude oil or gas condensate at a temperature not exceeding 20 ° C below the inversion point of the crude oil or gas condensate, as determined by a method comprising heating the samples of the crude oil or gas condensate to varying temperatures, which determines the sample floating point after cooling; depicting the floating points determined as a function of the heating temperatures at which the floating point has been reduced to its minimum value, which temperature is defined as the inversion point. Process according to Claim 1, characterized in that the synthetic floating point submersible is added to the crude oil or gas condensate at a temperature higher than 10 ° C below the inversion point, preferably at a temperature at or above the inversion point. Method according to claim 1 or 2, characterized in that the synthetic floating point submersible comprises a substance of formula I: wherein m = 20-300, preferably m = 25-100, and especially m = 50-80, n = 5-50 , preferably n = 5-25, and especially n = 8-15, and R symbolizes a hydrocarbon, preferably an aliphatic hydrocarbon, and especially an aliphatic hydrocarbon consisting of 2-20 carbon atoms. Process according to any one of the preceding claims, characterized in that the synthetic floating point submersible is added in an amount of 5-2000 ppm, preferably 20-500, and especially 20-100 ppm. Method according to any one of the preceding claims, characterized in that the synthetic floating point submersible is injected into the borehole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK200000893A DK200000893A (en) | 1997-12-15 | 2000-06-09 | Improving flow properties of wax-containing crude oil or natural gas liquid |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK199701455A DK145597A (en) | 1997-12-15 | 1997-12-15 | Process for improving the flow properties of a crude oil or gas condensate |
| PCT/DK1998/000535 WO1999031200A1 (en) | 1997-12-15 | 1998-12-08 | A method of improving the flow properties of a crude oil or natural gas liquid |
| DK200000893A DK200000893A (en) | 1997-12-15 | 2000-06-09 | Improving flow properties of wax-containing crude oil or natural gas liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DK200000893A true DK200000893A (en) | 2000-06-09 |
Family
ID=26065781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK200000893A DK200000893A (en) | 1997-12-15 | 2000-06-09 | Improving flow properties of wax-containing crude oil or natural gas liquid |
Country Status (1)
| Country | Link |
|---|---|
| DK (1) | DK200000893A (en) |
-
2000
- 2000-06-09 DK DK200000893A patent/DK200000893A/en not_active Application Discontinuation
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AHB | Application shelved due to non-payment |