CN1439691A - Harmless fracturing fluids - Google Patents
Harmless fracturing fluids Download PDFInfo
- Publication number
- CN1439691A CN1439691A CN 03110938 CN03110938A CN1439691A CN 1439691 A CN1439691 A CN 1439691A CN 03110938 CN03110938 CN 03110938 CN 03110938 A CN03110938 A CN 03110938A CN 1439691 A CN1439691 A CN 1439691A
- Authority
- CN
- China
- Prior art keywords
- accounts
- fracturing fluid
- injury
- sodium salicylate
- trimethyl ammonium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Water Treatment By Sorption (AREA)
- Lubricants (AREA)
Abstract
A non-damage fracturing liquid for oil field is prepared from ammonium cetyltrimethyl bromide (0.1-4 wt.%), sodium salicylate (0.1-1) and water (95-99.8). Its advantages are simple components, low cost, less damage to stratum, high penetrability and recovery rate, and no residue.
Description
Technical field: the present invention relates to the composition of oil field with non-injury fracturing fluid.
Background technology: the Oilfield using pressure break is to realize by the reservoir permeability that improves oil, gas reservoir and immediate vicinity of wellbore to improve production capacity.The multiple fracturing liquid that uses in pressure break at present is PLANT GUM WATER BASE FRACTURING FLUIDS, has certain shortcoming when producing and use, as need abundant swelling when preparing; And amount of additives reaches 13 kinds in the fracturing liquid, and prescription is complicated; The analysis of carrying out according to 150 waterfrac treatment operations of the U.S. shows that the polymkeric substance that pumps into the on average row of returning has only 35%-45%, and a large amount of polymer residues is trapped in the crack, and wherein contained insolubles can cause certain injury to the stratum; Fracturing liquid is big to the injury on stratum, and is secular; Common fracturing liquid can only shear thinning, reduce or cancel external force, and viscosity is expendable.
Summary of the invention: the object of the present invention is to provide a kind of non-injury fracturing fluid, it is simple, with low cost that it should have a prescription, little to stratum core permeability injury, recovery of core permeability height, noresidue, the easy characteristics of the row of returning.The present invention is formulated by host hexadecyl trimethyl ammonium bromide, auxiliary agent sodium salicylate and water, and by weight percentage, hexadecyl trimethyl ammonium bromide accounts for 0.1%-4%, and sodium salicylate accounts for 0.1%-1%, and water accounts for 95%-99.8%.With above-mentioned component according to a conventional method mixing and stirring get final product.Recovery of core permeability of the present invention can reach 95%, uses RV20 viscometer 170S
-1Shearing rate shear 1 hour viscosity greater than 60MPa.S, of the fracturing fluid leakoff coefficent is all 10
-4The order of magnitude, filter loss is little, and the viscosity behind the broken glue is less than 10MPa.S, and the residue behind the broken glue is 0.Less than 10%, downhole temperature can use with interior at 100 ℃ non-injury fracturing fluid to the injury rate of rate of permeation.The present invention has prescription simply, and is with low cost, little to the injury of stratum core permeability, recovery of core permeability height, noresidue, the easily advantage of the row of returning.
Embodiment one: present embodiment is formulated by host hexadecyl trimethyl ammonium bromide, auxiliary agent sodium salicylate and water, by weight percentage, hexadecyl trimethyl ammonium bromide accounts for 0.1%-4%, and sodium salicylate accounts for 0.1%-1%, and water accounts for 95%-99.8%.With above-mentioned each component according to a conventional method mixing and stirring get final product.
Embodiment two: when downhole temperature was in 45 ℃ in the present embodiment, the optimum weight proportioning of the contained each component of non-injury fracturing fluid was: hexadecyl trimethyl ammonium bromide accounts for 0.7%, sodium salicylate accounts for 0.7%, and water accounts for 98.6%.
Embodiment three: downhole temperature is in the time of 50 ℃ in the present embodiment, and the optimum weight proportioning of the contained each component of non-injury fracturing fluid is: hexadecyl trimethyl ammonium bromide accounts for 0.8%, sodium salicylate accounts for 0.9%, and water accounts for 98.3%.
Embodiment four: downhole temperature is in the time of 60 ℃ in the present embodiment, and the optimum weight proportioning of the contained each component of non-injury fracturing fluid is: hexadecyl trimethyl ammonium bromide accounts for 1.2%, sodium salicylate accounts for 0.8%, and water accounts for 98%.
Embodiment five: downhole temperature is in the time of 70 ℃ in the present embodiment, and the optimum weight proportioning of the contained each component of non-injury fracturing fluid is: hexadecyl trimethyl ammonium bromide accounts for 1.8%, sodium salicylate accounts for 0.7%, and water accounts for 97.5%.
Claims (5)
1, non-injury fracturing fluid, it is characterized in that it is formulated by host hexadecyl trimethyl ammonium bromide, auxiliary agent sodium salicylate and water, by weight percentage, hexadecyl trimethyl ammonium bromide accounts for 0.1%-4%, sodium salicylate accounts for 0.1%-1%, and water accounts for 95%-99.8%.
2, non-injury fracturing fluid according to claim 1, when it is characterized in that downhole temperature is in 45 ℃, the optimum weight proportioning of the contained each component of non-injury fracturing fluid is: hexadecyl trimethyl ammonium bromide accounts for 0.7%, sodium salicylate accounts for 0.7%, and water accounts for 98.6%.
3, non-injury fracturing fluid according to claim 1 is characterized in that downhole temperature in the time of 50 ℃, and the optimum weight proportioning of the contained each component of non-injury fracturing fluid is: hexadecyl trimethyl ammonium bromide accounts for 0.8%, sodium salicylate accounts for 0.9%, and water accounts for 98.3%.
4, non-injury fracturing fluid according to claim 1 is characterized in that downhole temperature in the time of 60 ℃, and the optimum weight proportioning of the contained each component of non-injury fracturing fluid is: hexadecyl trimethyl ammonium bromide accounts for 1.2%, sodium salicylate accounts for 0.8%, and water accounts for 98%.
5, non-injury fracturing fluid according to claim 1 is characterized in that downhole temperature in the time of 70 ℃, and the optimum weight proportioning of the contained each component of non-injury fracturing fluid is: hexadecyl trimethyl ammonium bromide accounts for 1.8%, sodium salicylate accounts for 0.7%, and water accounts for 97.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03110938 CN1206307C (en) | 2003-01-24 | 2003-01-24 | Harmless fracturing fluids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03110938 CN1206307C (en) | 2003-01-24 | 2003-01-24 | Harmless fracturing fluids |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1439691A true CN1439691A (en) | 2003-09-03 |
| CN1206307C CN1206307C (en) | 2005-06-15 |
Family
ID=27796793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03110938 Expired - Lifetime CN1206307C (en) | 2003-01-24 | 2003-01-24 | Harmless fracturing fluids |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1206307C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313563C (en) * | 2004-09-23 | 2007-05-02 | 中国石油天然气股份有限公司 | Composition of clean fracturing fluid additive and method for fracturing stratum |
| CN101481608B (en) * | 2009-01-19 | 2011-08-10 | 中国石油大学(华东) | Clean fracturing fluid and use thereof |
| CN103881688A (en) * | 2014-03-12 | 2014-06-25 | 中国石油天然气股份有限公司 | Low-damage clean fracturing fluid for oil well of oil field and application of low-damage clean fracturing fluid |
| CN104046337A (en) * | 2014-06-18 | 2014-09-17 | 中国石油集团渤海钻探工程有限公司 | Clean drilling fluid used for coal bed gas multi-branch horizontal well storage layer and preparation method of clean drilling fluid |
| CN105505370A (en) * | 2014-09-23 | 2016-04-20 | 中国石油化工股份有限公司 | Clean fracturing fluid and preparation method thereof |
| CN105885817A (en) * | 2016-04-29 | 2016-08-24 | 西北大学 | Clean fracturing fluid gel breaker and application of fracturing fluid in low permeability-ultra-low permeability oil and gas reservoirs |
-
2003
- 2003-01-24 CN CN 03110938 patent/CN1206307C/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313563C (en) * | 2004-09-23 | 2007-05-02 | 中国石油天然气股份有限公司 | Composition of clean fracturing fluid additive and method for fracturing stratum |
| CN101481608B (en) * | 2009-01-19 | 2011-08-10 | 中国石油大学(华东) | Clean fracturing fluid and use thereof |
| CN103881688A (en) * | 2014-03-12 | 2014-06-25 | 中国石油天然气股份有限公司 | Low-damage clean fracturing fluid for oil well of oil field and application of low-damage clean fracturing fluid |
| CN104046337A (en) * | 2014-06-18 | 2014-09-17 | 中国石油集团渤海钻探工程有限公司 | Clean drilling fluid used for coal bed gas multi-branch horizontal well storage layer and preparation method of clean drilling fluid |
| CN104046337B (en) * | 2014-06-18 | 2016-06-29 | 中国石油集团渤海钻探工程有限公司 | A kind of cleaning drilling fluid for coal bed gas multi-branch horizontal reservoir and preparation method thereof |
| CN105505370A (en) * | 2014-09-23 | 2016-04-20 | 中国石油化工股份有限公司 | Clean fracturing fluid and preparation method thereof |
| CN105885817A (en) * | 2016-04-29 | 2016-08-24 | 西北大学 | Clean fracturing fluid gel breaker and application of fracturing fluid in low permeability-ultra-low permeability oil and gas reservoirs |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1206307C (en) | 2005-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1954780B1 (en) | Method and composition of preparing polymeric fracturing fluids | |
| US6242390B1 (en) | Cleanup additive | |
| AU751713B2 (en) | Improved polymer expansion for oil and gas recovery | |
| CN102782081B (en) | Use the method for cross-linked fluids pressure break subsurface formations | |
| CN103265943B (en) | Low concentration guanidine gum glue laminated splits system linking agent and preparation technology thereof | |
| CN100404638C (en) | High-density fracturing fluid | |
| US5393439A (en) | Periodate fracturing fluid viscosity breakers | |
| CN100357387C (en) | Water-base fracturing fluid with low harm to permeability of reservoir bed and diversion capability of crack | |
| US9157022B2 (en) | Fluid loss control in viscoelastic surfactant fracturing fluids using water soluble polymers | |
| RU2338872C2 (en) | Methods and compositions for decomposing of thickened liquids | |
| US7012044B2 (en) | Oil and gas recovery from subterranean formations | |
| US20100132948A1 (en) | Delayed Breaking of Well Treatment Fluids | |
| CN1206307C (en) | Harmless fracturing fluids | |
| US20080161209A1 (en) | Fluid Loss Control in Viscoelastic Surfactant Fracturing Fluids Using Water Soluble Polymers | |
| CN104629709A (en) | Clean fracturing fluid for low-temperature coal bed gas reservoir and application thereof | |
| US20140041877A1 (en) | Well Treatment Fluids Containing An Ylide Or A Vitamin B And Methods Of Using The Same | |
| US20030008780A1 (en) | Method and product for use of guar powder in treating subterranean formations | |
| CN101298555B (en) | Harmless clean fracturing fluid | |
| CN102134481A (en) | Carboxymethyl-hydroxypropyl guar gum water-base fracturing fluid | |
| CN104245588B (en) | Thixotropic agent and using method | |
| EP1207267A1 (en) | An oil in water fracturing fluid emulsion, method of preparation and use for fracturing a subterranean formation | |
| CN103965859A (en) | Oilwell gemini surfactant fracturing fluid and preparation method thereof | |
| CN101760189A (en) | Non-damage fracturing regulating fluid | |
| CN101705082B (en) | Formulated fracturing fluid of micro emulsion gel | |
| CA2999255C (en) | Use of food grade particulates to form fractures having increased porosity and conductivity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20050615 |