CN1304521C - Elimination liquid of filter cake - Google Patents
Elimination liquid of filter cake Download PDFInfo
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- CN1304521C CN1304521C CNB2004100186755A CN200410018675A CN1304521C CN 1304521 C CN1304521 C CN 1304521C CN B2004100186755 A CNB2004100186755 A CN B2004100186755A CN 200410018675 A CN200410018675 A CN 200410018675A CN 1304521 C CN1304521 C CN 1304521C
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- filter cake
- acid
- weight percent
- aqueous solution
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Abstract
The present invention provides filter cake removing liquid which comprises acid (HCl + HF), a cleaning penetrating agent, solvent type organic matters, a fluid loss agent for dissolving asphalt, clay stabilizer, an inhibitor, potassium chloride (KCl) and an aqueous solution, wherein the weight percentage of the acid (HCl + HF) is from 1 to 5%, the weight percentage of the cleaning penetrating agent is from 2 to 4%, the weight percentage of the solvent type organic matters is from 4 to 6%, the weight percentage of the clay stabilizer (HCS) is from 0.5 to 3%, the weight percentage of the inhibitor is from 1.5 to 2%, the weight percentage of the potassium chloride (KCl) is from 3 to 5%, and the balance is the aqueous solution. The filter cake removing liquid can rapidly and effectively remove filter cakes and protect sieve tube gaps against being blocked by the filter cakes.
Description
Technical field
The present invention relates to drilling fluid, relate in particular to a kind of filter cake and remove liquid.
Background technology
At sea in the oil-field development drilling operation course; in order to protect hydrocarbon zone better, suppress mud shale and disperse, often adopt oil base drilling fluid or synthetic base drilling fluid to carry out drilling operation; in order to prevent synthetic base or oil base drilling fluid filter cake obstruction screen casing, must farthest remove filter cake.At present, domestic because the use range of synthetic base drilling fluid and oil base drilling fluid is less, therefore, supporting work starting is also than later, and the technical study of removing this respect for filter cake also is in blank basically.
In drilling process, under action of pressure, free fluid in the drilling fluid is infiltration (the leak-off effect of drilling fluid) in the crack of rock of borehole and hole, and along with the carrying out of this process of osmosis, the solid phase particles in the drilling fluid is just attached to forming filter cake on the borehole wall.If the filter cake that synthetic base or oil base drilling fluid form is not removed, might stop up screen pipe opening.
Summary of the invention
Main purpose of the present invention is to overcome the above-mentioned shortcoming that currently available products exists, and provides a kind of filter cake to remove liquid, and it can remove filter cake rapidly, effectively, prevents that filter cake from stopping up screen pipe opening.
The objective of the invention is to realize by following technical scheme.
Filter cake of the present invention is removed liquid, it is characterized in that, its by acid, clean permeate agent, solvent-borne type organism, clay stabilizer, inhibiter, Repone K and seawater or fresh water with the effect of dissolved bitumen class fluid loss agent forms; Wherein, Suan weight percent is 1%～5%; The weight percent that cleans permeate agent is 2%～4%; The organic weight percent of solvent-borne type is 4%～6%; The weight percent of clay stabilizer is 1.5%～3%; The weight percent of inhibiter is 1.5%～2%; The weight percent of Repone K is 3%～5%; All the other are seawater or fresh water.
Aforesaid filter cake is removed liquid, and wherein acid is the mixing acid of hydrochloric acid and hydrofluoric acid; Described cleaning permeate agent is the fatty alcohol polyethenoxy ether class material; The solvent-borne type organism of dissolved bitumen class fluid loss agent is the arene material; Clay stabilizer is the low molecular weight cationic polymkeric substance; Inhibiter is the organic amine derivative.
Aforesaid filter cake is removed liquid, and wherein acid is mixed in proportion by HCl and HF at 1: 1; Described fatty alcohol-polyoxyethylene ether is C
3To C
10Alcohol mixture EO6; The arene material is by dimethylbenzene and the tetracol phenixin material that mixes at 6: 4 of ratio by volume; The low molecular weight cationic polymkeric substance is by poly-2-hydroxypropyl alkyl dimethyl ammonium chloride and the Poly Dimethyl Diallyl Ammonium Chloride material that mixes at 6: 4 of ratio by volume; The organic amine derivative be by alkyl trimethyl ammonium chloride, stearylamine and hexadecylpyridinium chloride by volume ratio mix at 5: 4: 1.
Filter cake of the present invention is removed the preparation method of liquid, it is characterized in that, under the room temperature, in the aqueous solution, add acid in regular turn, clean permeate agent, have solvent-borne type organism, clay stabilizer, inhibiter, the Repone K of the effect of dissolved bitumen class fluid loss agent, mix and form.
Embodiment
Filter cake of the present invention is removed liquid, can fill up domestic technological gap aspect synthetic base drilling fluid or the removing of oil base drilling fluid filter cake.According to the solid phase composition of synthetic base drilling fluid filter cake, mentality of designing of the present invention is: remove solubility in acid material in the filter cake with acidolysis, and make whole filter cake loosening; With the solvent-borne type organism as dissolved bitumen class fluid loss agent; With efficient cleaning penetrant treating filter cake, add clay stabilizer simultaneously in case scavenging solution is filtered into the injury hydrocarbon zone.For this reason, it is a kind of metastable O/w emulsion system that filter cake of the present invention is removed liquid, and when this system was in the down-hole, emulsion system stability was destroyed, and inorganic phase and organic phase are brought into play its effect separately, thereby reach the purpose that filter cake is removed.
The advantage that filter cake of the present invention is removed liquid is: filter cake is removed effect: synthetic base drilling fluid or oil base drilling fluid filter cake are removed put into filter cake behind the false filter cake and remove liquid and soak, have a large amount of bubbles to produce, and the loose separation that comes off easily of filter cake.Cleaning permeate agent is used for handling filter cake by the infiltration cleaning; The solvent-borne type organism is as the solvent of dissolved bitumen class fluid loss agent; Can prevent particle migration in clay stabilizer (HCS) use, protect reservoir effectively; Inhibiter can be alleviated inorganic salt and sour corrosion to subsurface tool, makes erosion rate be reduced to 1g/cm
2Below the h; The weight percent of KCl is 3%～5%, and its effect is to regulate the density that filter cake is removed liquid.
Filter cake is removed the reservoir protection effect of liquid: permeability resume figure can reach more than 100%.Filter cake is removed the erosion rate of liquid: less than 1g/cm
2H.
Embodiment one: with weight percent is that 4% acid solution, 3% fatty alcohol-polyoxyethylene ether, 5% arene material, 2% low molecular weight cationic polymkeric substance, 2% organic amine derivative, 5% KCl add in the aqueous solution and mix; Wherein, acid solution by HCl and HF by volume ratio mix at 1: 1; Fatty alcohol-polyoxyethylene ether is C
3~ C
10Alcohol mixture EO6; The arene material is dimethylbenzene and the tetracol phenixin material that mixes at 6: 4 of ratio by volume; The low molecular weight cationic polymkeric substance by poly-2-hydroxypropyl alkyl dimethyl ammonium chloride and Poly Dimethyl Diallyl Ammonium Chloride by volume ratio mix at 6: 4; The organic amine derivative by alkyl trimethyl ammonium chloride, stearylamine and hexadecylpyridinium chloride by volume ratio mix at 5: 4: 1.The filter cake that configures is removed liquid be diluted to required volume by 1: 1 (volume ratio), pour in the well with filtering seawater or fresh water.Its usage quantity is general consistent with the annular volume of open hole section.Filter cake loosens and the separation that comes off easily after using this filter cake to remove liquid, and in use can prevent particle migration, protects reservoir effectively, also can not cause heavy corrosion to subsurface tool.
Embodiment two: with weight percent is 1% acid, 2% fatty alcohol-polyoxyethylene ether, 4% arene material, and 2% low molecular weight cationic polymkeric substance, 2% organic amine derivative, 3% KCl add in the aqueous solution and mix; Wherein, acid solution by HCl and HF by volume ratio mix at 1: 1; Fatty alcohol-polyoxyethylene ether is C
3To C
10Alcohol mixture EO6; The arene material is dimethylbenzene and the tetracol phenixin material that mixes at 6: 4 of ratio by volume; The low molecular weight cationic polymkeric substance by poly-2-hydroxypropyl alkyl dimethyl ammonium chloride and Poly Dimethyl Diallyl Ammonium Chloride by volume ratio mix at 6: 4; The organic amine derivative by alkyl trimethyl ammonium chloride, stearylamine and hexadecylpyridinium chloride by volume ratio mix at 5: 4: 1.The filter cake that configures is removed liquid be diluted to required volume by 1: 1 (volume ratio), pour in the well with filtering seawater or fresh water.Its usage quantity is general consistent with the annular volume of open hole section.Filter cake loosens and the separation that comes off easily after using this filter cake to remove liquid, and in use can prevent particle migration, protects reservoir effectively, also can not cause heavy corrosion to subsurface tool.
Embodiment three: with weight percent is 5% acid, 4% fatty alcohol-polyoxyethylene ether, 6% arene material, and 2% low molecular weight cationic polymkeric substance, 2% organic amine derivative, 5% KCl add in the aqueous solution and mix; Wherein, acid solution by HCl and HF by volume ratio mix at 1: 1; Fatty alcohol-polyoxyethylene ether is C
3To C
10Alcohol mixture EO6; The arene material is dimethylbenzene and the tetracol phenixin material that mixes at 6: 4 of ratio by volume; The low molecular weight cationic polymkeric substance by poly-2-hydroxypropyl alkyl dimethyl ammonium chloride and Poly Dimethyl Diallyl Ammonium Chloride by volume ratio mix at 6: 4; The organic amine derivative by alkyl trimethyl ammonium chloride, stearylamine and hexadecylpyridinium chloride by volume ratio mix at 5: 4: 1.The filter cake that configures is removed liquid be diluted to required volume by 1: 1 (volume ratio), pour in the well with filtering seawater or fresh water.Its usage quantity is general consistent with the annular volume of open hole section.Filter cake loosens and the separation that comes off easily after using this filter cake to remove liquid, and in use can prevent particle migration, protects reservoir effectively, also can not cause heavy corrosion to subsurface tool.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (3)
1, a kind of filter cake is removed liquid, it is characterized in that, its solvent-borne type organism, clay stabilizer, inhibiter, Repone K and aqueous solution by acid, cleaning permeate agent, dissolved bitumen class fluid loss agent is formed; Wherein, acid is the mixing acid of hydrochloric acid and hydrofluoric acid, and its weight percent is 1%～5%; Cleaning permeate agent is the fatty alcohol polyethenoxy ether class material, and its weight percent is 2%～4%; The solvent-borne type organism of dissolved bitumen class fluid loss agent is the arene material, and its weight percent is 4%～6%; Clay stabilizer is the low molecular weight cationic polymkeric substance, and its weight percent is 1.5%～3%; Inhibiter is the organic amine derivative, and its weight percent is 1.5%～2%; The weight percent of Repone K is 3%～5%; All the other are the aqueous solution, and the aqueous solution is seawater or fresh water.
2, filter cake according to claim 1 is removed liquid, it is characterized in that described acid is mixed in proportion by hydrochloric acid and hydrofluoric acid at 1: 1; The arene material is by dimethylbenzene and the tetracol phenixin material that mixes at 6: 4 of ratio by volume; Described low molecular weight cationic polymkeric substance is by poly-2-hydroxypropyl alkyl dimethyl ammonium chloride and the Poly Dimethyl Diallyl Ammonium Chloride material that mixes at 6: 4 of ratio by volume; Described organic amine derivative be by alkyl trimethyl ammonium chloride, stearylamine and hexadecylpyridinium chloride by volume ratio mix at 5: 4: 1.
3, filter cake as claimed in claim 1 is removed the preparation method of liquid, it is characterized in that, under the room temperature, in the aqueous solution, add acid in regular turn, clean solvent-borne type organism, clay stabilizer, inhibiter and the Repone K of permeate agent, dissolved bitumen class fluid loss agent, mix and form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100186755A CN1304521C (en) | 2004-02-23 | 2004-02-23 | Elimination liquid of filter cake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100186755A CN1304521C (en) | 2004-02-23 | 2004-02-23 | Elimination liquid of filter cake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1660959A CN1660959A (en) | 2005-08-31 |
| CN1304521C true CN1304521C (en) | 2007-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100186755A Expired - Fee Related CN1304521C (en) | 2004-02-23 | 2004-02-23 | Elimination liquid of filter cake |
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| Country | Link |
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| CN (1) | CN1304521C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597488B (en) * | 2009-06-26 | 2012-03-07 | 中国石油天然气股份有限公司 | Treating fluid for high solid phase drilling fluid filter cake removal |
| CN106634914B (en) * | 2016-12-09 | 2017-09-19 | 西南石油大学 | The working solution system removed suitable for water-base drilling fluid filter cake before well cementation |
| CN109652044A (en) * | 2019-01-02 | 2019-04-19 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of compound Cementing system and its purging method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1334854A (en) * | 1998-12-31 | 2002-02-06 | 索菲泰克公司 | Fluid and techniques for hydrocarbon well completion |
| EP1223207A1 (en) * | 2001-01-09 | 2002-07-17 | Halliburton Energy Services, Inc. | Well drilling and servicing fluids and removal of filter cake deposited thereby |
| US6422314B1 (en) * | 2000-08-01 | 2002-07-23 | Halliburton Energy Services, Inc. | Well drilling and servicing fluids and methods of removing filter cake deposited thereby |
| CN1464026A (en) * | 2002-06-19 | 2003-12-31 | 胜利石油管理局钻井工艺研究院 | Inhibitory type high temperature high pressure solid-phase-free oil gas well well completion fluid |
-
2004
- 2004-02-23 CN CNB2004100186755A patent/CN1304521C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1334854A (en) * | 1998-12-31 | 2002-02-06 | 索菲泰克公司 | Fluid and techniques for hydrocarbon well completion |
| US6422314B1 (en) * | 2000-08-01 | 2002-07-23 | Halliburton Energy Services, Inc. | Well drilling and servicing fluids and methods of removing filter cake deposited thereby |
| US20020139532A1 (en) * | 2000-08-01 | 2002-10-03 | Todd Bradley L. | Well drilling and servicing fluids and methods of removing filter cake deposited thereby |
| US6494263B2 (en) * | 2000-08-01 | 2002-12-17 | Halliburton Energy Services, Inc. | Well drilling and servicing fluids and methods of removing filter cake deposited thereby |
| EP1223207A1 (en) * | 2001-01-09 | 2002-07-17 | Halliburton Energy Services, Inc. | Well drilling and servicing fluids and removal of filter cake deposited thereby |
| CN1464026A (en) * | 2002-06-19 | 2003-12-31 | 胜利石油管理局钻井工艺研究院 | Inhibitory type high temperature high pressure solid-phase-free oil gas well well completion fluid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1660959A (en) | 2005-08-31 |
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Granted publication date: 20070314 Termination date: 20160223 |