CN1067707C - Fluorescence-free anti-collapse fluid loss agent and preparation method thereof - Google Patents
Fluorescence-free anti-collapse fluid loss agent and preparation method thereof Download PDFInfo
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- CN1067707C CN1067707C CN98114272A CN98114272A CN1067707C CN 1067707 C CN1067707 C CN 1067707C CN 98114272 A CN98114272 A CN 98114272A CN 98114272 A CN98114272 A CN 98114272A CN 1067707 C CN1067707 C CN 1067707C
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- collapse
- water
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Abstract
The invention relates to a fluorescence-free anti-collapse fluid loss agent for treating drilling fluid in petroleum drilling, particularly in the process of exploratory drilling, and a preparation method thereof. The anti-collapse and anti-loss water agent is prepared by mixing and stirring water, lignite, tannin extract, hydrolyzed polyacrylonitrile amine salt, phenol, formaldehyde, sodium metabisulfite (or anhydrous sodium sulfite) and sodium hydroxide according to a certain proportion, reacting in a sealed state at a certain temperature, drying and crushing. The anti-collapse and anti-drop water loss agent has good anti-collapse and anti-drop water loss effect and has no fluorescence interference to geological logging, so that the agent can be used in various drilling processes such as production wells, exploration wells and the like.
Description
The present invention relates to a kind of particularly fluorescence less anti-collapse dehydration agent of handling of prospect pit drilling process drilling fluid and preparation method thereof of petroleum drilling that is used for.
In Process of Oil Well Drilling, in order to reduce drilling fluid filtrate leak-off in the stratum, preventing that mud shale water-swelling in the borehole wall from causing caves in, and must add a certain amount of anti-collapse dehydration agent in drilling fluid.At present, the main anti-collapse aqua of field by using is the sulfonated gilsonite with good anti-collapse water-based energy, but, because the basic raw material of sulfonated gilsonite is pitch and vegetable oil residue, its fluorescent rank is very high, in the prospect pit drilling process, often cause the illusion that fluorescent is arranged on the drilling cuttings, seriously disturb normally carrying out of geological logging work, thereby its application is restricted.
The object of the present invention is to provide a kind of good anti-collapse dehydration effect that both had, to geological logging fluorescence less interferential fluorescence less anti-collapse dehydration agent again.
Fluorescence less anti-collapse dehydration agent provided by the invention is after being mixed in reactor by the brown coal of certainweight ratio, tannin extract, hydrolyzed polyacrylonitrile amine salt, phenol, sodium hydroxide, formaldehyde, Sodium Pyrosulfite or sodium sulphite anhydrous 99.3 and water, through stirring, air-tight state and 50-180 ℃ of temperature range internal reaction 2-15 hour, reacted resultant is dried under 80-120 ℃ of temperature, pulverized, form brownish black resene polymer powder powder finished product.In the preparation process, the ratio that above-mentioned raw materials feeds intake (weight ratio) is as follows:
Water: brown coal: tannin extract: hydrolyzed polyacrylonitrile amine salt: phenol: formaldehyde: Sodium Pyrosulfite or sodium sulphite anhydrous 99.3: sodium hydroxide
=30∶1.5-3.5∶1.5-3.0∶0.5-2.5∶1.2-6∶0-4∶0.5-3.5
In the material component of fluorescence less anti-collapse dehydration agent provided by the invention, after the clay particle effect in water-soluble substances and the drilling fluid, can strengthen wall cake compactness and intensity, water-fast type thermoplastic resin material then can be in thermoplastic distortion filling borehole wall slit under the formation temperature.Its result makes drilling fluid filtrate reduce significantly to the stratum filter loss, obtains good anti-collapse dehydration effect.Simultaneously, the fluorescent rank of this kind water retaining is 0, utilizes it can get rid of interference to geological logging fully, makes it not only can be used for the recovery well drilling well but also can be used for the prospect pit drilling well.
Embodiment 1: start the reactor agitator, add entry 1200kg, sodium hydroxide 120kg successively under agitation condition in reactor, phenol 40kg, brown coal 140kg, tannin extract 80kg, hydrolyzed polyacrylonitrile amine salt 40kg, formaldehyde (concentration 36-38%) 80kg, sodium sulphite anhydrous 99.3 80kg; Then, all purging valve and the feed valves of off-response still make it to be in air-tight state; Liquid form mixt in the reactor is warming up to 140 ℃, at the blowing after 3 hours of isothermal reaction under this temperature; After oven dry under 110 ℃ of temperature, pulverize, pack, can obtain this fluorescence less anti-collapse aqua product.
Embodiment 2: start the agitator of reactor, add entry 1350kg successively under agitation condition, sodium hydroxide 45kg, phenol 45kg, brown coal 85kg, tannin extract 90kg, hydrolyzed polyacrylonitrile amine salt 44kg, formaldehyde (concentration 36-38%) 94kg in reactor; All feed valves of off-response still and purging valve make it to be in air-tight state; Liquid form mixt in the reactor is warming up to 75 ℃, at the blowing after 4 hours of isothermal reaction under this temperature; 120 ℃ of oven dry down, packings after crushed.
Claims (2)
1, a kind of fluorescence less anti-collapse dehydration agent is characterized in that, this water retaining is a kind of brownish black resene polymer powder powder product, and its feed composition and weight proportion are as follows:
Water: brown coal: tannin extract: hydrolyzed polyacrylonitrile amine salt: phenol: formaldehyde: Sodium Pyrosulfite or sodium sulphite anhydrous 99.3: sodium hydroxide
=30∶1.5-3.5∶1.5-3.0∶0.5-2.5∶1.2-6∶0-4∶0.5-3∶5
2, a kind of preparation method of fluorescence less anti-collapse dehydration agent, it is characterized in that, after will mixing in reactor as water, brown coal, tannin extract, hydrolyzed polyacrylonitrile amine salt, phenol, formaldehyde, Sodium Pyrosulfite or sodium sulphite anhydrous 99.3, the sodium hydroxide of the listed proportioning of claim 1 and stir during preparation, air-tight state and 50-180 ℃ of temperature range internal reaction 2-15 hour, reacted resultant is dried under 80-120 ℃ of temperature, pulverize, be packaged into product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98114272A CN1067707C (en) | 1998-08-26 | 1998-08-26 | Fluorescence-free anti-collapse fluid loss agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98114272A CN1067707C (en) | 1998-08-26 | 1998-08-26 | Fluorescence-free anti-collapse fluid loss agent and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1212986A CN1212986A (en) | 1999-04-07 |
| CN1067707C true CN1067707C (en) | 2001-06-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98114272A Expired - Fee Related CN1067707C (en) | 1998-08-26 | 1998-08-26 | Fluorescence-free anti-collapse fluid loss agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1067707C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101137698B (en) * | 2005-03-07 | 2011-11-16 | M-I有限公司 | Method of stabilizing a well bore of a well penetrating a subterranean formation |
| CN101230257B (en) * | 2007-12-28 | 2011-02-02 | 中国石油大学(华东) | Method for preparation of lignite resin drilling fluid loss additive |
| CN102911646B (en) * | 2012-09-19 | 2016-09-07 | 中国石油集团长城钻探工程有限公司 | Filtrate reducer for oil-based drilling fluid and preparation method thereof |
| CN103666415B (en) * | 2013-12-23 | 2016-04-27 | 河南海洋化工有限公司 | Drilling fluid Effective Anti temperature drop fluid loss agents and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043332A (en) * | 1988-12-05 | 1990-06-27 | 菲利浦石油公司 | Well treatment solution and be used for the additive of this treatment solution |
| CN1048403A (en) * | 1990-08-10 | 1991-01-09 | 辽河石油勘探局钻井一公司 | A kind of non-toxic viscosity-decreasing agent used for drilling mud |
| CN1059925A (en) * | 1991-05-13 | 1992-04-01 | 西南石油学院 | A kind of composite cement filter loss-reducing agent for oil well |
-
1998
- 1998-08-26 CN CN98114272A patent/CN1067707C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043332A (en) * | 1988-12-05 | 1990-06-27 | 菲利浦石油公司 | Well treatment solution and be used for the additive of this treatment solution |
| CN1048403A (en) * | 1990-08-10 | 1991-01-09 | 辽河石油勘探局钻井一公司 | A kind of non-toxic viscosity-decreasing agent used for drilling mud |
| CN1059925A (en) * | 1991-05-13 | 1992-04-01 | 西南石油学院 | A kind of composite cement filter loss-reducing agent for oil well |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1212986A (en) | 1999-04-07 |
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