CN101381598B - Fracture liquid and preparation method thereof - Google Patents
Fracture liquid and preparation method thereof Download PDFInfo
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- CN101381598B CN101381598B CN2008102318827A CN200810231882A CN101381598B CN 101381598 B CN101381598 B CN 101381598B CN 2008102318827 A CN2008102318827 A CN 2008102318827A CN 200810231882 A CN200810231882 A CN 200810231882A CN 101381598 B CN101381598 B CN 101381598B
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Abstract
The invention discloses fracturing fluid and a preparation method thereof. The fracturing fluid is formed by mixing base fluid and crosslinked fluid according to the crosslinking ratio of 100 to 5; the base fluid consists of the following compositions according to mass percentage: 03 to 0.5 percent of hydroxypropyl guanidine gum HPG-1, 0.4 to 0.5 percent of a temperature stabilizer for the fracturing fluid, 0.05 to 0.15 percent of a low temperature evocating agent for the fracturing fluid, 0.2 to 0.3 percent of a cleanup additive and the balance being sewage water from a crude oil layer; and the crosslinked fluid consists of the following compositions according to mass percentage: 0.5 to 1.5 percent of borax, 0.5 to 1.5 percent of ammonium persulfate and the balance being clear water. Themethod for preparing the fracturing fluid comprises the following steps: the prepared base fluid and the prepared fracturing fluid are respectively placed for 100 to 120 minutes and are mixed according to the crosslinking rate of 100 to 5 to form the fracturing fluid. The method adopts the sewage water for matching the fracturing fluid, saves cost, has small pollution to the environment and improves the wave and volume of a water-driven reservoir and the oil-sweeping efficiency.
Description
Technical field
The invention belongs to the oil-gas field development technical field, be specifically related to a kind of fracturing liquid, the invention still further relates to this of the fracturing fluid preparation method.
Background technology
Some regional oilfield reserve abundance in China is low, rate of permeation is low, yield poorly, moisture height, and surface water resource is in great shortage, and oil well does not have the nature production capacity.The general production fluid of oil well is average moisture 70%, and oil-containing 30% is local through river dosing Fractured Oil Well produce oil at these; Oil offtake is lower, uses river to do raw material, makes originally rare water resources nervous more; And river caused a large amount of pollutions; Worsen environment, and when river dosing materials, used a large amount of expansion-resisting agents and emulsion splitter, improved the required cost that recovers the oil.
Summary of the invention
The purpose of this invention is to provide a kind of fracturing liquid, adopt the sewage that derives from former oil reservoir, practiced thrift cost, environmental pollution is little, and has improved the water-drive reservoir swept volume and swept oily efficient.
Another object of the present invention provides above-mentioned of the fracturing fluid preparation method, and technology is simple, handled easily.
The technical scheme that the present invention adopted is, a kind of fracturing liquid is mixed by base fluid and the crosslinked ratio of crosslinked fluid according to 100:5, and base fluid is composed of the following components by mass percentage:
Hydroxypropyl guanidine glue HPG-10.3%～0.5%; Fracturing liquid temperature stabilising agent T-1 0.4%～0.5%; Fracturing liquid low temperature initiators 0.05%～0.15%; Cleanup additive 0.2%～0.3%, all the other are the sewage that derives from former oil reservoir, hydroxypropyl guanidine glue HPG-1, fracturing liquid temperature stabilising agent T-1, fracturing liquid low temperature initiators, cleanup additive and the content summation that derives from the sewage of former oil reservoir are 100%;
Crosslinked fluid is composed of the following components by mass percentage:
Borax 0.5%～1.5%, ammonium persulphate 0.5%～1.5%, all the other are clear water, the content summation of borax, ammonium persulphate and clear water is 100%.
Another technical scheme that the present invention adopted is, above-mentioned of the fracturing fluid preparation method specifically carries out according to following steps,
Step 1. preparation base fluid
Get the sewage that 0.3%～0.5% hydroxypropyl guanidine glue HPG-1,0.4%～0.5% fracturing liquid temperature stabilising agent T-1,0.05%～0.15% fracturing liquid low temperature initiators, 0.2%～0.3% cleanup additive and surplus derive from former oil reservoir respectively by total amount 100%; The sewage that derives from the crude oil layer is joined in the dosing pond; In the dosing pond, add earlier 0.3%～0.5% hydroxypropyl guanidine glue HPG-1; In the dosing pond, add 0.4%～0.5% fracturing liquid temperature stabilising agent T-1 then; 0.05%～0.15% fracturing liquid low temperature initiators is added in continuation in the dosing pond; At last in the dosing pond, add 0.2%～0.3% cleanup additive, stirred the dosing pond then 100 minutes～120 minutes, promptly accomplish the configuration of base fluid;
Step 2. preparation crosslinked fluid
By total amount is 100% to get 0.5%～1.5% ammonium persulphate, 0.5%～1.5% borax and the clear water of surplus respectively; Clear water is joined in the dosing pond; In the dosing pond, add earlier 0.5%～1.5% ammonium persulphate; In the dosing pond, add 0.5%～1.5% borax then, stirred the dosing pond at last 100 minutes～120 minutes, promptly accomplish the configuration of crosslinked fluid;
The crosslinked fluid that the base fluid that step 3. makes step 1 and step 2 make crosslinked than mixing stirring according to 100: 5 promptly makes fracturing liquid of the present invention.
Description of drawings
Fig. 1 is the of the fracturing fluid rheological experiment data plot of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated.
One, of the fracturing fluid composition:
The of the fracturing fluid prescription of the present invention is the mixed solution of base fluid and crosslinked fluid, and wherein base fluid is 100:5 with the crosslinked ratio of crosslinked fluid.
Wherein, base fluid is composed of the following components by mass percentage:
Hydroxypropyl guanidine glue HPG-1 0.3%～0.5%, fracturing liquid temperature stabilising agent T-1 0.4%～0.5%, fracturing liquid low temperature initiators 0.05%～0.15%, cleanup additive 0.2%～0.3%, all the other are the sewage that derives from former oil reservoir, total mass is 100%.
Crosslinked fluid is composed of the following components by mass percentage:
Borax 0.5%～1.5%, Ammonium Persulfate 98.5 0.5%～1.5%, all the other are clear water, total mass is 100%.
The product that hydroxypropyl guanidine glue HPG-1 can select for use goods and materials Kunshan company of CNPC to produce; The product that fracturing liquid temperature stabilising agent T-1 can select for use Xi'an sharp young oil Science and Technology Ltd. to produce; The product that the fracturing liquid low temperature initiators can select for use goods and materials Kunshan company of CNPC to produce, cleanup additive is a product commercially available in the petroleum industry.
Two, of the fracturing fluid preparation method:
When fracturing liquid of the present invention prepared, base fluid and crosslinked fluid will prepare separately.
1, preparation base fluid:
The sewage that will derive from the crude oil layer by calculated amount joins in the dosing pond; In the dosing pond, add earlier 0.3%～0.5% hydroxypropyl guanidine glue HPG-1; In the dosing pond, add 0.4%～0.5% fracturing liquid temperature stabilising agent T-1 then, continue in the dosing pond, to add 0.05%～0.15% fracturing liquid low temperature initiators, in the dosing pond, add 0.2%～0.3% cleanup additive at last; Stir the dosing pond then 100 minutes～120 minutes, and promptly accomplished the configuration of required base fluid.
2, preparation crosslinked fluid:
By calculated amount clear water is joined in the dosing pond; In the dosing pond, add earlier 0.5%～1.5% Ammonium Persulfate 98.5; In the dosing pond, add 0.5%～1.5% borax then, stirred the dosing pond at last 100 minutes～120 minutes, promptly accomplish the configuration of required crosslinked fluid.
3, preparation fracturing liquid:
With above-mentioned base fluid for preparing and the crosslinked ratio of crosslinked fluid according to 100:5, promptly 100 parts base fluid mixes stirring with 5 parts crosslinked fluid, promptly makes fracturing liquid of the present invention.
Three, beneficial effect:
Fracturing liquid of the present invention adopts sewage to join fracturing liquid, and its output is high, have abundant water resources, and sewage to join the compatibleness of fracturing liquid and local water better.Sewage source oil reservoir salinity is high, can prevent clay swelling, is prone to into glue, is prone to broken glue.
Sewage of the present invention is joined fracturing liquid oil well and river and is joined the fracturing liquid oil well output and relatively see table 1.Can find out by table 1, adopt sewage of the present invention to join fracturing liquid and join the per-well production of fracturing liquid oil well than river and be enhanced, and join fracturing liquid oil well produce oil with sewage and can save a large amount of with river, process water.
Table 1 sewage of the present invention joins the fracturing liquid oil well and river is joined the fracturing liquid oil well output relatively
River is joined fracturing liquid and sewage of the present invention and is joined the fracturing liquid prescription and relatively see table 2.Can find out that by table 2 handling back sewage joins the fracturing liquid materials and join the fracturing liquid materials than river and practiced thrift a large amount of expansion-resisting agents and emulsion splitter, has saved a large amount of costs.
Table 2 river joins fracturing liquid and sewage of the present invention is joined the fracturing liquid prescription relatively
Sewage of the present invention is joined of the fracturing fluid crosslinked situation: at room temperature; Crosslinked fluid and base fluid can be crosslinked; Situation room temperature to 50 a degree centigrade cross-linking properties that does not add emulsion splitter remains unchanged; Originally use river join fracturing liquid more than 30 degrees centigrade the time in 5 minutes crosslinked horse back destroy, viscosity sharply descends, and can't satisfy the requirement that sand is taken at the scene.
Sewage of the present invention is joined of the fracturing fluid rheological experiment and is seen Fig. 1, and it is better that sewage as can be seen from the figure of the present invention is joined the fracturing liquid rheological property.
Sewage of the present invention is joined of the fracturing fluid broken glue test: temperature is at 40 degrees centigrade, and it is 4～6 hours that sewage is joined the fluid break time, and broken glue is comparatively thorough.
Embodiment 1
Get the sewage that 0.3% hydroxypropyl guanidine glue HPG-1,0.4% fracturing liquid temperature stabilising agent T-1,0.05% fracturing liquid low temperature initiators, 0.2% cleanup additive and surplus derive from former oil reservoir respectively by total amount 100%; The sewage that derives from the crude oil layer is joined in the dosing pond; In the dosing pond, add 0.3% hydroxypropyl guanidine glue HPG-1 earlier; In the dosing pond, add 0.4% fracturing liquid temperature stabilising agent T-1 then, continue in the dosing pond, to add 0.05% fracturing liquid low temperature initiators, last 0.2% the cleanup additive that in the dosing pond, adds; Stir the dosing pond then 100 minutes, and promptly accomplished the configuration of base fluid;
By total amount is 100% to get 0.5% ammonium persulphate, 0.5% borax and the clear water of surplus respectively; Clear water is joined in the dosing pond; In the dosing pond, add 0.5% ammonium persulphate earlier; In the dosing pond, add 0.5% borax then, stirred the dosing pond at last 100 minutes, promptly accomplish the configuration of crosslinked fluid;
With the above-mentioned base fluid that makes and crosslinked fluid crosslinked ratio according to 100: 5,100 parts base fluids are mixed stirring with 5 parts crosslinked fluid, promptly make fracturing liquid of the present invention.
Embodiment 2
Get the sewage that 0.5% hydroxypropyl guanidine glue HPG-1,0.5% fracturing liquid temperature stabilising agent T-1,0.15% fracturing liquid low temperature initiators, 0.3% cleanup additive and surplus derive from former oil reservoir respectively by total amount 100%; The sewage that derives from the crude oil layer is joined in the dosing pond; In the dosing pond, add 0.5% hydroxypropyl guanidine glue HPG-1 earlier; In the dosing pond, add 0.5% fracturing liquid temperature stabilising agent T-1 then, continue in the dosing pond, to add 0.15% fracturing liquid low temperature initiators, last 0.3% the cleanup additive that in the dosing pond, adds; Stir the dosing pond then 120 minutes, and promptly accomplished the configuration of base fluid;
By total amount is 100% to get 1.5% ammonium persulphate, 1.5% borax and the clear water of surplus respectively; Clear water is joined in the dosing pond; In the dosing pond, add 1.5% ammonium persulphate earlier; In the dosing pond, add 1.5% borax then, stirred the dosing pond at last 120 minutes, promptly accomplish the configuration of crosslinked fluid;
With the above-mentioned base fluid that makes and crosslinked fluid crosslinked ratio according to 100: 5,100 parts base fluids are mixed stirring with 5 parts crosslinked fluid, promptly make fracturing liquid of the present invention.
Embodiment 3
Get the sewage that 0.4% hydroxypropyl guanidine glue HPG-1,0.45% fracturing liquid temperature stabilising agent T-1,0.1% fracturing liquid low temperature initiators, 0.25% cleanup additive and surplus derive from former oil reservoir respectively by total amount 100%; The sewage that derives from the crude oil layer is joined in the dosing pond; In the dosing pond, add 0.4% hydroxypropyl guanidine glue HPG-1 earlier; In the dosing pond, add 0.45% fracturing liquid temperature stabilising agent T-1 then, continue in the dosing pond, to add 0.1% fracturing liquid low temperature initiators, last 0.25% the cleanup additive that in the dosing pond, adds; Stir the dosing pond then 110 minutes, and promptly accomplished the configuration of base fluid;
By total amount is 100% to get 1% ammonium persulphate, 1% borax and the clear water of surplus respectively; Clear water is joined in the dosing pond, in the dosing pond, add 1% ammonium persulphate earlier, in the dosing pond, add 1% borax then; Stir the dosing pond at last 110 minutes, and promptly accomplished the configuration of crosslinked fluid;
With the above-mentioned base fluid that makes and crosslinked fluid crosslinked ratio according to 100: 5,100 parts base fluids are mixed stirring with 5 parts crosslinked fluid, promptly make fracturing liquid of the present invention.
Claims (2)
1. fracturing liquid is mixed by base fluid and the crosslinked fluid crosslinked ratio according to 100: 5, and described base fluid is composed of the following components by mass percentage:
Hydroxypropyl guanidine glue HPG-1 0.3%～0.5%; Fracturing liquid temperature stabilising agent T-1 0.4%～0.5%; Fracturing liquid low temperature initiators 0.05%～0.15%; Cleanup additive 0.2%～0.3%, all the other are the sewage that derives from former oil reservoir, hydroxypropyl guanidine glue HPG-1, fracturing liquid temperature stabilising agent T-1, fracturing liquid low temperature initiators, cleanup additive and the content summation that derives from the sewage of former oil reservoir are 100%;
Wherein, hydroxypropyl guanidine glue HPG-1 is by CNPC's goods and materials Kunshan manufactured, and fracturing liquid temperature stabilising agent T-1 is made by the sharp young oil in Xi'an Science and Technology Ltd., and the fracturing liquid low temperature initiators is by CNPC's goods and materials Kunshan manufactured;
Described crosslinked fluid is composed of the following components by mass percentage:
Borax 0.5～1.5%, ammonium persulphate 0.5%～1.5%, all the other are clear water, the content summation of borax, ammonium persulphate and clear water is 100%.
2. the said of the fracturing fluid preparation method of claim 1 is characterized in that, specifically carry out according to the following steps,
Step 1. preparation base fluid
Get the sewage that 0.3%～0.5% hydroxypropyl guanidine glue HPG-1,0.4%～0.5% fracturing liquid temperature stabilising agent T-1,0.05%～0.15% fracturing liquid low temperature initiators, 0.2%～0.3% cleanup additive and surplus derive from former oil reservoir respectively by total amount 100%; Wherein, Hydroxypropyl guanidine glue HPG-1 is by CNPC's goods and materials Kunshan manufactured; Fracturing liquid temperature stabilising agent T-1 is made by the sharp young oil in Xi'an Science and Technology Ltd., and the fracturing liquid low temperature initiators is by CNPC's goods and materials Kunshan manufactured; The sewage that derives from the crude oil layer is joined in the dosing pond; In the dosing pond, add earlier 0.3%～0.5% hydroxypropyl guanidine glue HPG-1; In the dosing pond, add 0.4%～0.5% fracturing liquid temperature stabilising agent T-1 then, continue in the dosing pond, to add 0.05%～0.15% fracturing liquid low temperature initiators, in the dosing pond, add 0.2%～0.3% cleanup additive at last; Stir the dosing pond then 100 minutes～120 minutes, and promptly accomplished the configuration of base fluid;
Step 2. preparation crosslinked fluid
By total amount is 100% to get 0.5%～1.5% ammonium persulphate, 0.5%～1.5% borax and the clear water of surplus respectively; Clear water is joined in the dosing pond; In the dosing pond, add earlier 0.5%～1.5% ammonium persulphate; In the dosing pond, add 0.5%～1.5% borax then, stirred the dosing pond at last 100 minutes～120 minutes, promptly accomplish the configuration of crosslinked fluid;
The crosslinked fluid that the base fluid that step 3. makes step 1 and step 2 make crosslinked than mixing stirring according to 100: 5 promptly makes fracturing liquid of the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2008102318827A CN101381598B (en) | 2008-10-24 | 2008-10-24 | Fracture liquid and preparation method thereof |
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| CN2008102318827A CN101381598B (en) | 2008-10-24 | 2008-10-24 | Fracture liquid and preparation method thereof |
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| CN101381598A CN101381598A (en) | 2009-03-11 |
| CN101381598B true CN101381598B (en) | 2012-07-18 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101531892B (en) * | 2009-04-16 | 2011-01-26 | 大庆油田有限责任公司 | Ultra low temperature super guanidine gum fracturing fluid |
| CN101805600B (en) * | 2010-04-15 | 2012-11-07 | 中国石油大学(华东) | Gelled fracturing fluid being applicable to coalbed methane reservoir |
| CN102093875B (en) * | 2010-12-08 | 2013-07-31 | 中国石油集团西部钻探工程有限公司 | Super guar gum foamed fracturing fluid injected with liquid nitrogen for low-permeability gas reservoir and preparation method thereof |
| CN102229798B (en) * | 2011-05-17 | 2013-05-22 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Fracturing fluid prepared from simulated stratum produced water or stratum produced water |
| CN102304356B (en) * | 2011-07-06 | 2014-08-20 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Method for preparing environmentally-friendly type water-based fracturing fluid by utilizing environmentally-friendly type multiple-effect thickening agent |
| CN103074049B (en) * | 2013-01-21 | 2015-04-08 | 西南石油大学 | Fracturing fluid prepared by recovery waste water of crude oil and preparation method of fracturing fluid |
| CN103816821B (en) * | 2014-01-08 | 2016-06-29 | 李磊 | A kind of continuous compounding method for fracturing fluid |
| CN104948154A (en) * | 2014-03-28 | 2015-09-30 | 北京仁创科技集团有限公司 | Natural water fracturing construction method |
| CN106590609B (en) * | 2015-10-16 | 2019-11-15 | 中国石油化工股份有限公司 | A kind of fracturing fluid and preparation method thereof |
| CN108997995A (en) * | 2018-07-12 | 2018-12-14 | 中国石油集团西部钻探工程有限公司 | The fracturing fluid and preparation method thereof prepared using oilfield sewage |
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