CN1298805C - Active collosol deep adjusting driving agnet - Google Patents
Active collosol deep adjusting driving agnet Download PDFInfo
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- CN1298805C CN1298805C CNB2004100236129A CN200410023612A CN1298805C CN 1298805 C CN1298805 C CN 1298805C CN B2004100236129 A CNB2004100236129 A CN B2004100236129A CN 200410023612 A CN200410023612 A CN 200410023612A CN 1298805 C CN1298805 C CN 1298805C
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- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
The present invention provides an active sol deep adjusting and driving agent which is used for strata with different permeation rates. The present invention is compounded from 60% to 69% of lignosulphonate, 6.5% to 11.0% of sodium metaaluminate, 3% to 15% of formaldehyde and 3% to 12% of water. The adjusting and driving agent has the performance of temperature resistance and salt resistance, and simultaneously has double functions of enhancing a spread system and oil washing efficiency.
Description
Technical field:
The present invention relates to a kind of oilfield chemistry agent, in particular for different rate of permeation stratum, deep adjusting driving agnet with heat-resistant salt-resistant performance.
Background technology:
In waterflooding oil field, inject water along most permeable zone seepage flow, reduced the sweep efficiency that injects water.Simultaneously, inject water and aggravated the inhomogeneity on stratum again along the seepage flow of most permeable zone, the utilization ratio that causes injecting water constantly reduces.
The oil well height is moisture to bring two negative impacts to oil-field development, and on the one hand, a large amount of output water is to oil-field water treatment system build-up of pressure and increase cost; On the other hand, because water yield formation high pressure zone often, the high pressure water of output has restraining effect to the produce oil of low pressure layer.
Owing to above two reasons, must control in the oilfield process and inject water and advance by leaps and bounds and reduce the water ratio of oil well along most permeable zone.Profile control and water plugging is the effective measure that realize above-mentioned two purposes.
Late 1990s recognizes that there is the limitation of consumption and mechanism two aspects in profile control and water plugging up till now, and in order to improve oil recovery factor, profile control and water plugging work should combine with tertiary oil recovery, and proposes and carried out the deep transfer drive and improved recovery efficiency technique.
The appearance that deep transfer drive technology is accompanied by the colloidal dispersion gel grows up.The colloidal dispersion gel is the mid-80, and is serendipitous when the foreign study personnel attempt to seek a kind of method of using screen cloth quantitative evaluation lamellar gel in the laboratory.Smith[1] etc. the people in the mid-80 the cross-linking system of partially hydrolyzed polyacrylamide and Tiorco 677 has been carried out indoor formulating, the mid-90 is named the colloidal dispersion gel according to the character of gelating soln.
Deep transfer drive technology has mainly developed 2 class methods both at home and abroad at present, promptly weak gel deep transfer drive technology, aqueous colloidal dispersion deep transfer drive technology.
Weak gel deep transfer drive technology is the transfer drive technology that abroad grows up on the gel water-plugging technique basis in recent years, weak gel is meant the gelling system of viscosity at 100mPa.s～10000mPa.s, this technology has made full use of the mobility of weak gel, and it has the polymer gel water blockoff simultaneously and oil reservoir internal flow mobility is regulated this two kinds of mechanism.The oil field widespread use at home of this technology has obtained effect preferably.
Aqueous colloidal dispersion deep transfer drive technology has mainly developed 2 class adjusting driving agnets, is respectively aqueous colloidal dispersion gel (CDG), pre-crosslinked gel particle (PG).
(1) aqueous colloidal dispersion gel (CDG)
Aqueous colloidal dispersion gel deep transfer drive technology is the eighties mid-term by external proposition and a kind of deep transfer drive technology of growing up, this technology has been utilized the characteristic of colloidal dispersion gel, so it also has the polymer gel water blockoff simultaneously and oil reservoir internal flow mobility is regulated this two kinds of technical characterstics.At present, American TI ORCO company has carried out 35 mining site experiments, and obtains economical and technical success.Field experiment has also been carried out in oil fields such as domestic grand celebration, triumph, the Liaohe River.
(2) pre-crosslinked gel particle (PG)
Pre-crosslinked gel particle deep transfer drive technology is by domestic research and a kind of deep transfer drive technology of growing up, this technology is to inject crosslinked particle in the stratum, because pectisation is just to have finished before injecting, thus the precrosslink granule technology solved preferably that underground crosslinked gelling system enters behind the stratum that factors such as variation because of dilution, degraded, absorption and pH value cause do not become the glue problem.This technology is used in triumph, Zhongyuan Oil Field at present.
Because present deep adjusting driving agnet all is to make basic material by polyacrylamide, so it requires formation water salinity less than 20000mg/L, requires formation temperature less than 93 ℃, and the rate of permeation that requires the stratum is greater than 100 * 10
-3μ m
2This has just limited deep transfer drive technology in oilfield application.
Summary of the invention:
The objective of the invention is to develop a kind of heatproof, salt tolerant, have the deep adjusting driving agnet that improves sweep efficiency and displacement efficiency dual function when can be used for different rate of permeation stratum.
The object of the present invention is achieved like this: described deep adjusting driving agnet is mixed by sulfonated lignin, sodium metaaluminate, formaldehyde and water, each components contents is respectively: sulfonated lignin 60%～69%, sodium metaaluminate 6.5%～11.0%, formaldehyde 3%～15% and water 3%～12%, above-mentioned each component concentration sum is 100%.
Embodiment:
Specifically describe composition of the present invention and preparation process below in conjunction with embodiment.
Embodiment 1: to the 1m that has started
3Have in the kneader of steam jacket and add 490kg sulfonated lignin, 70kg sodium metaaluminate and 70kg water successively, logical steam is warming up to 80 ℃, adding 90kg concentration is 36% formalin after 1 hour, with kneader sealing discharging after 3 hours, be warmed to 125 ℃ of dryings, be crushed to 100 orders, pack.
Active colloidal sol of the present invention deep adjusting driving agnet can be used in:
Reservoir temperature: 0 ℃-150 ℃;
The lithology on water blockoff stratum: do not limit
Oil property: do not limit
Use the rate of permeation on stratum: 〉=0.01 μ m
2
Active colloidal sol provided by the present invention deep adjusting driving agnet runs into the local water of high salinity (greater than 20000mg/L) in the stratum after, along with the increase of salinity, the viscosity of system increases gradually, but final generating unit is divided coalescent formation gel.Simultaneously, along with the migration of active colloidal sol deep adjusting driving agnet in the stratum, the pH value of system descends gradually, and viscosity raises gradually.Because the rising of system viscosity, active colloidal sol deep adjusting driving agnet can significantly improve the sweep efficiency of oil-displacing agent in the oil reservoir deep.
Alkaline components in the adjusting driving agnet and sulfonated lignin can reduce oil water interfacial tension, work to improve displacement efficiency.
Active colloidal sol provided by the present invention deep adjusting driving agnet has significant resistance to elevated temperatures, can be under 200 ℃ of temperature life-time service.And use range is wide, can be used for the stratum of viscosity less than 10000mPa.s.
Claims (1)
1. active colloidal sol deep adjusting driving agnet that waterflooding oil field is used, it is characterized in that mixing by sulfonated lignin, sodium metaaluminate, formaldehyde and water, each components contents is respectively: sulfonated lignin 60%～69%, sodium metaaluminate 6.5%～11.0%, formaldehyde 3%～15% and water 3%～12%, above-mentioned each component concentration sum is 100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100236129A CN1298805C (en) | 2004-02-25 | 2004-02-25 | Active collosol deep adjusting driving agnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100236129A CN1298805C (en) | 2004-02-25 | 2004-02-25 | Active collosol deep adjusting driving agnet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1560183A CN1560183A (en) | 2005-01-05 |
| CN1298805C true CN1298805C (en) | 2007-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100236129A Expired - Fee Related CN1298805C (en) | 2004-02-25 | 2004-02-25 | Active collosol deep adjusting driving agnet |
Country Status (1)
| Country | Link |
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| CN (1) | CN1298805C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298804C (en) * | 2005-10-18 | 2007-02-07 | 中国石油天然气股份有限公司 | Hydrophobic water-swelling profile control agent |
| CN104356396A (en) * | 2014-11-24 | 2015-02-18 | 天津大港油田滨港集团博弘石油化工有限公司 | Preparation method of lignin sulfite profile control agent for oil production |
| CN104559975B (en) * | 2014-12-24 | 2017-05-10 | 中国石油天然气股份有限公司 | Water plugging agent and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1272587A (en) * | 1999-04-30 | 2000-11-08 | 大庆石油管理局 | Three-component composite displacement system formed from alkali, active agent and polymer and its application in tertiary oil recovery |
| CN1275430A (en) * | 1999-05-27 | 2000-12-06 | 大庆石油管理局 | Lignin sulfonate surfactant for oil field, its preparation process and use in tertiary oil recovery |
| CN1281026A (en) * | 2000-08-07 | 2001-01-24 | 大庆油田有限责任公司勘探开发研究院 | Three-element built-up composition containing lignosulfonate surfactant and its application in tertiary petroleum recovery |
-
2004
- 2004-02-25 CN CNB2004100236129A patent/CN1298805C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1272587A (en) * | 1999-04-30 | 2000-11-08 | 大庆石油管理局 | Three-component composite displacement system formed from alkali, active agent and polymer and its application in tertiary oil recovery |
| CN1275430A (en) * | 1999-05-27 | 2000-12-06 | 大庆石油管理局 | Lignin sulfonate surfactant for oil field, its preparation process and use in tertiary oil recovery |
| CN1281026A (en) * | 2000-08-07 | 2001-01-24 | 大庆油田有限责任公司勘探开发研究院 | Three-element built-up composition containing lignosulfonate surfactant and its application in tertiary petroleum recovery |
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| Publication number | Publication date |
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| CN1560183A (en) | 2005-01-05 |
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Granted publication date: 20070207 Termination date: 20110225 |