CN103173201A - High temperature resistant clean fracturing fluid - Google Patents
High temperature resistant clean fracturing fluid Download PDFInfo
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- CN103173201A CN103173201A CN2013100278239A CN201310027823A CN103173201A CN 103173201 A CN103173201 A CN 103173201A CN 2013100278239 A CN2013100278239 A CN 2013100278239A CN 201310027823 A CN201310027823 A CN 201310027823A CN 103173201 A CN103173201 A CN 103173201A
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- fracturing fluid
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- clean fracturing
- temperature resistant
- resistant clean
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Abstract
The invention discloses a high temperature resistant clean fracturing fluid which is mainly applied to high-temperature hypotonic reservoir fracturing. The clean fracturing fluid comprises the following components in percentage by weight: 0.2-0.7% of a high temperature-resistant clean fracturing fluid thickening agent, 0.2-1.2% of a cross linking agent, 0.2-0.5% of a clay stabilizer, 0.2-0.5% of a cleanup additive, 0.01-0.1% of ammonium persulphate and the balance of water. The clean fracturing fluid is prepared according to the following steps: firstly, adding clean water into a liquid mixing tank according to a ratio, stirring and uniformly pouring the high temperature-resistant clean fracturing fluid thickening agent; adding the clay stabilizer and the cleanup additive after the thickening agent is completely dispersed, and stirring for above 20 minutes after the materials are completely added so as to uniformly mix the materials; and adding the cross linking agent and a gel breaker in a fracturing process according to an actual required ratio. The fracturing fluid is convenient to prepare, has good temperature resistance and shear resistance, does not have residues after gel breaking, and can satisfy the requirements of hypotonic high-temperature reservoir fracturing.
Description
Technical field:
The present invention relates to the oil field compression fracture technical field, patent of the present invention belongs to the fracturing liquid of oil-gas field fracturing transformation use, is a kind of clean fracturing fluid that is applied to high temperature, low permeability reservoir.
Technical background:
In the process of oil-gas field fracturing transformation, usually can run into high temperature, hypotonic reservoir.Surfactant-based fracturing liquid commonly used can't be high temperature resistant, and guanidine glue class fracturing liquid has the part residue after broken glue, larger to reservoir damage, because all being not suitable for a bit the fracturing reform of high temperature, low permeability reservoir.
" a kind of oligomer acidic fracturing fluid " of Daqing Oil Field Co., Ltd, publication number: CN102071004A.This fracturing fluid system has clean fracturing fluid similarly without the residue characteristic, and is little to formation damage.The shortcoming and defect part of this system is: 1. this system scope of application is narrower, is only applicable to temperature lower than the reservoir of 90 ℃; 2. how explanation does not regulate and control of the fracturing fluid crosslinking time.
Summary of the invention:
The objective of the invention is to overcome existing technological deficiency, a kind of fracturing reform that is applicable to high temperature, low permeability reservoir Oil/gas Well is provided, and reduce fracturing liquid to the injury on stratum.
Purpose of the present invention realizes according to following proposal:
Each weight percentages of components is: high temperature resistant clean fracturing fluid viscosifying agent, 0.2～0.7%; Linking agent, 0.2～1.2%; Clay stabilizer, 0.2～0.5%; Cleanup additive, 0.2～0.5%; Ammonium persulphate 0.01～0.1%; All the other are water.At first add in proportion clear water in Agitation Tank, open and stir, evenly be sprinkled into high temperature resistant clean fracturing fluid viscosifying agent.Add clay stabilizer, cleanup additive after viscosifying agent disperses fully, after material adds, stir more than 20 minutes, it is mixed.Add linking agent, gel breaker in the actual requirement ratio when pressing crack construction.
The preparation of the present invention is high temperature resistant clean fracturing fluid is convenient, heatproof is done after good, the broken glue of cutting performance without residue, has satisfied needs hypotonic, the transformation of high temperature reservoir fracturing.
Embodiment:
Example 1: get the 1000ml beaker, measure tap water 493ml, open and stir.Take high temperature resistant clean fracturing fluid viscosifying agent 2g, evenly be sprinkled in the tap water that is stirring, after adding viscosifying agent, continue to stir 5 minutes, then add the tetramethyl ammonium chloride aqueous solution of 2.5 grams 10%, the 2.5 rare alkylbenzene phenolic ethers of gram polyoxy second, stop after stirring stirring, wait to be used.Get the 100ml mixture, add 0.6 gram linking agent, stir, can form frozen glue, after 20 seconds, useable glass hangs.
Get 50 gram example 1 frozen glue, at 90 ℃, 170S
-1After shearing 90min, viscosity is 130mPa.S, can satisfy the requirement of pressing crack construction fully, can be used as the fracturing liquid formula of reservoir below 90 ℃.
Example 2: get the 1000ml beaker, measure tap water 493ml, open and stir.Take high temperature resistant clean fracturing fluid viscosifying agent 3g, evenly be sprinkled in the tap water that is stirring, after adding viscosifying agent, continue to stir 5 minutes, then add 2.5 gram quaternary amine clay stabilizers, 2.5 gram non-ion fluorin carbon surface active agents, stop after stirring stirring, wait to be used.Get the 100ml mixture, add 1.0 gram linking agents, stir, can form frozen glue, after 60 seconds, useable glass hangs.
Get 50 gram example 1 frozen glue, at 150 ℃, 170S
-1After shearing 120min, viscosity is 55mPa.S, can satisfy the requirement of pressing crack construction fully, can be used as more than 90 ℃ the fracturing liquid formula of reservoir below 150 ℃.
Example 3: get the 1000ml beaker, measure tap water 493ml, open and stir.Take high temperature resistant clean fracturing fluid viscosifying agent 2g, evenly be sprinkled in the tap water that is stirring, after adding viscosifying agent, continue to stir 5 minutes, then add the tetramethyl ammonium chloride aqueous solution of 2.5 grams 10%, the 2.5 rare alkylbenzene phenolic ethers of gram polyoxy second, stop after stirring stirring, wait to be used.Get the 100ml mixture, add 0.6 gram linking agent, 0.07 gram ammonium persulphate stirs, and can form frozen glue.Frozen glue is put into 90 ℃ of baking ovens, take out after 4 hours, be cooled to room temperature, wait to be used.
[0012] get refrigerant last in example 3 and survey its viscosity at 20 ℃, less than 5mPa.S, survey its residue, less than 50mg/L.After its broken glue, viscosity is low, and residue is few, and is little to formation damage.
Claims (4)
1. high temperature resistant clean fracturing fluid, it is characterized in that: each constituent mass per-cent is:
The clean fracturing fluid viscosifying agent, 0.2～0.7%;
Linking agent, 0.2～1.2%;
Clay stabilizer, 0.2～0.5%;
Cleanup additive, 0.2～0.5%;
Ammonium persulphate 0.01～0.2%;
All the other are water, and each constituent mass per-cent sum is absolutely.
2. high temperature resistant clean fracturing fluid as claimed in claim 1, is characterized in that the linking agent in said components is Burow Solution, acetic acid zirconium or mixture both.
3. high temperature resistant clean fracturing fluid as claimed in claim 1 is characterized in that clay stabilizer in said components is 10% the tetramethyl ammonium chloride aqueous solution or quaternary ammonium salt clay stabilizer.
4. high temperature resistant clean fracturing fluid as claimed in claim 1, is characterized in that the cleanup additive in said components is the rare alkylbenzene phenolic ether of non-ion fluorin carbon surface active agent, polyoxy second or its mixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100278239A CN103173201A (en) | 2013-01-25 | 2013-01-25 | High temperature resistant clean fracturing fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100278239A CN103173201A (en) | 2013-01-25 | 2013-01-25 | High temperature resistant clean fracturing fluid |
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| Publication Number | Publication Date |
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| CN103173201A true CN103173201A (en) | 2013-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013100278239A Pending CN103173201A (en) | 2013-01-25 | 2013-01-25 | High temperature resistant clean fracturing fluid |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103396785A (en) * | 2013-07-30 | 2013-11-20 | 宜兴市东明石油化学助剂有限公司 | Anti-swelling and discharge-aiding agent |
| CN104327824A (en) * | 2014-10-27 | 2015-02-04 | 中国石油天然气股份有限公司 | Novel fracturing fluid for improving petroleum recovery ratio |
| CN105086986A (en) * | 2015-08-26 | 2015-11-25 | 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 | High-temperature-resistant recyclable clean fracturing fluid for gas wells |
| CN105670596A (en) * | 2016-03-29 | 2016-06-15 | 咸阳万众生物科技有限公司 | High-temperature-resistant automatic gel breaking type surfactant fracturing fluid |
| CN106497538A (en) * | 2016-10-25 | 2017-03-15 | 长江大学 | Drag reduction, the row of helping and clay stabilization " three-in-one " slippery water concentrate system without oil phase |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475798A (en) * | 2009-01-20 | 2009-07-08 | 西南石油大学 | Oil and gas well fracturing fluid for 180-200 DEG C high temperature strata |
-
2013
- 2013-01-25 CN CN2013100278239A patent/CN103173201A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475798A (en) * | 2009-01-20 | 2009-07-08 | 西南石油大学 | Oil and gas well fracturing fluid for 180-200 DEG C high temperature strata |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103396785A (en) * | 2013-07-30 | 2013-11-20 | 宜兴市东明石油化学助剂有限公司 | Anti-swelling and discharge-aiding agent |
| CN104327824A (en) * | 2014-10-27 | 2015-02-04 | 中国石油天然气股份有限公司 | Novel fracturing fluid for improving petroleum recovery ratio |
| CN104327824B (en) * | 2014-10-27 | 2017-07-25 | 中国石油天然气股份有限公司 | fracturing fluid for improving petroleum recovery ratio |
| CN105086986A (en) * | 2015-08-26 | 2015-11-25 | 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 | High-temperature-resistant recyclable clean fracturing fluid for gas wells |
| CN105670596A (en) * | 2016-03-29 | 2016-06-15 | 咸阳万众生物科技有限公司 | High-temperature-resistant automatic gel breaking type surfactant fracturing fluid |
| CN106497538A (en) * | 2016-10-25 | 2017-03-15 | 长江大学 | Drag reduction, the row of helping and clay stabilization " three-in-one " slippery water concentrate system without oil phase |
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Application publication date: 20130626 |