CN110760294A - Anti-collapse filtrate reducer silicon-fluorine resin compound for drilling fluid - Google Patents
Anti-collapse filtrate reducer silicon-fluorine resin compound for drilling fluid Download PDFInfo
- Publication number
- CN110760294A CN110760294A CN201911129480.0A CN201911129480A CN110760294A CN 110760294 A CN110760294 A CN 110760294A CN 201911129480 A CN201911129480 A CN 201911129480A CN 110760294 A CN110760294 A CN 110760294A
- Authority
- CN
- China
- Prior art keywords
- collapse
- fluid loss
- loss additive
- agent
- percent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention relates to an anti-collapse and filtrate loss reducing agent silicon fluorine resin compound for drilling fluid, which is characterized in that: the weight percentages of the components are as follows: 50-60% of bentonite, 1-3% of galena powder, 1-5% of limestone powder, 1-5% of liquid weighting agent NaCL1, 1-7% of sulfomethyl phenolic resin, 1-5% of polysilicone fluorine stabilizer, 1-3% of inert fluid loss additive, 1-5% of sodium carboxymethyl cellulose, 1-3% of carboxymethyl starch, 1-8% of methylene polyacrylamide dry powder, 1-3% of tackifying fluid loss additive, 1-6% of alkyl sodium sulfonate, 1-5% of potassium ammonium hydrolysis polyacrylonitrile, 2-8% of sulfonated asphalt sodium salt, 2-10% of sulfomethyl lignite resin, 2-7% of high molecular polymer anti-collapse agent, 2-5% of anti-expansion agent, 1-3% of water-based heavy mud diluent, 1-5% of polyacrylamide and 1-3% of anti-collapse lubricant, 1-3% of high temperature resistant and salt resistant filtrate reducer, 1-5% of reservoir shielding agent, 1-3% of dodecyl dimethyl benzyl ammonium chloride, 1-2% of glycerol polyether, 1-5% of diesel oil, 1-3% of basic zinc carbonate and 30-40 kg of additional water.
Description
The technical field is as follows:
the invention belongs to the field of preparation of drilling fluid filtrate reducer, and particularly relates to an anti-collapse filtrate reducer silicon-fluorine resin compound for drilling fluid.
Background art:
the loss of drilling fluid and the formation of filter cake the loss of drilling fluid is inevitable during drilling and filter cake can be formed by the loss of fluid to protect the well wall. However, the drilling fluid has too large filtration loss, which easily causes the shale to expand and collapse, resulting in the instability of the well wall. In addition, the filter cake thickens while the filtration loss is increased, so that the well diameter is reduced, a large torque is caused to a rotating drilling tool, swabbing and pressure fluctuation are caused when the drilling tool is tripped out, and differential pressure drill sticking is easily caused. Therefore, proper control of fluid loss is one of the important properties of a drilling fluid. It is clear that the fluid loss of a drilling fluid is closely related to the formation permeability. However, when the drilling fluid is lost, a filter cake is formed, and when the drilling fluid is lost again, the drilling fluid must pass through the formed filter cake. Thus, the main factor determining the magnitude of the fluid loss is the permeability of the filter cake. How to form a high quality filter cake with low permeability to prevent further loss of drilling fluid is one of the major issues to be considered in the formulation of drilling fluids.
The clay particles in the drilling fluid need to have a suitable size distribution while at the same time requiring more fine clay particles. The drilling fluid with large filtration loss is characterized in that on one hand, coarse particles are more, on the other hand, fine particles are flocculated into coarse particles, and sol fine particles in a system are less. The drilling fluid with more coarse particles and less fine particles forms loose filter cakes with large pores, so the filtration loss is large. The filtrate reducer is a high molecular compound capable of dissociating negative charge groups in water. On one hand, the clay can be adsorbed on the surface of the clay to form an adsorption layer so as to prevent the clay particles from being flocculated and grown; on the other hand, the fine particles dispersed under the action of the circulating stirring of the drilling fluid can be stabilized by adsorption and are not bonded into large particles. This ensures a sufficient proportion of fine particles, which allows the drilling fluid to form a thin and dense filter cake, reducing fluid loss.
Aiming at the situation that the filtration performance of the drilling fluid is strictly controlled in the drilling engineering, the use of a proper drilling fluid treating agent is an effective method for reducing the filtration loss and establishing good wall building property, and therefore the inventor researches a filtration-reducing agent modified polysaccharide for the drilling fluid.
The invention content is as follows:
in order to achieve the purpose, the invention provides an anti-collapse and fluid loss additive silicon-fluorine resin compound for drilling fluid, which achieves the purposes of reducing the fluid loss and establishing good wall building property.
The technical scheme of the invention is as follows:
an anti-collapse and fluid loss additive silicon fluorine resin compound for drilling fluid is characterized by comprising the following components: bentonite, galena powder, limestone powder, a liquid weighting agent NaCL, sulfomethyl phenolic resin, a polysilicone fluorine stabilizer, an inert fluid loss additive, sodium carboxymethyl cellulose, carboxymethyl starch, methylene polyacrylamide dry powder, a tackifying fluid loss additive, sodium alkyl sulfonate, potassium ammonium hydrolyzed polyacrylonitrile, sulfonated asphalt sodium salt, sulfomethyl lignite resin, a high polymer anti-collapse agent, an anti-swelling agent, a water-based heavy mud diluent, polyacrylamide, an anti-collapse lubricant, a high temperature resistant salt-resistant fluid loss additive, a reservoir shielding agent, dodecyl dimethyl benzyl ammonium chloride, glycerol polyether, diesel oil, basic zinc carbonate and water.
Preferably, 50-60% of bentonite, 1-3% of galena powder, 1-5% of limestone powder, 1-5% of liquid weighting agent NaCL 1-5%, 1-7% of sulfomethyl phenolic resin, 1-5% of polysilicone fluorine stabilizer, 1-3% of inert fluid loss additive, 1-5% of sodium carboxymethyl cellulose, 1-3% of carboxymethyl starch, 1-8% of methylene polyacrylamide dry powder, 1-3% of tackifying fluid loss additive, 1-6% of alkyl sodium sulfonate, 1-5% of potassium ammonium hydrolyzed polyacrylonitrile, 2-8% of sulfonated asphalt sodium salt, 2-10% of sulfomethyl lignite resin, 2-7% of high molecular polymer anti-collapse agent, 2-5% of anti-swelling agent, 1-3% of water-based heavy mud diluent, 1-5% of polyacrylamide and 1-3% of anti-collapse lubricant, 1-3% of high temperature resistant and salt resistant filtrate reducer, 1-5% of reservoir shielding agent, 1-3% of dodecyl dimethyl benzyl ammonium chloride, 1-2% of glycerol polyether, 1-5% of diesel oil, 1-3% of basic zinc carbonate and 30-40 kg of additional water.
Preferably, the bentonite is 50%, the galena powder is 2%, the limestone powder is 2%, the liquid weighting agent NaCL 3%, the sulfomethyl phenolic resin is 3%, the polysilicone fluoride stabilizer is 2%, the inert fluid loss additive is 1%, the carboxymethyl cellulose sodium salt is 1%, the carboxymethyl starch is 1%, the methylene polyacrylamide dry powder is 3%, the tackifying fluid loss additive is 1%, the alkyl sodium sulfonate is 2%, the potassium ammonium hydrolysis polyacrylonitrile is 1%, the sulfonated asphalt sodium salt is 5%, the sulfomethyl lignite resin is 5%, the high polymer anti-collapse agent is 2%, the anti-swelling agent is 2%, the water-based heavy mud diluent is 1%, the polyacrylamide is 2%, the anti-collapse lubricant is 3%, the high temperature resistant anti-salt fluid loss additive is 1%, the reservoir layer shielding agent is 1%, the dodecyl dimethyl benzyl ammonium chloride is 1%, the glycerol polyether is 2%, the diesel oil is 2%, the basic zinc carbonate is 1%, and the amount of additional water is 35 kg.
Preferably, the bentonite is 50%, the galena powder is 2%, the limestone powder is 2%, the liquid weighting agent NaCL 3%, the sulfomethyl phenolic resin is 3%, the polysilicone fluoride stabilizer is 2%, the inert fluid loss additive is 1%, the carboxymethyl cellulose sodium salt is 1%, the carboxymethyl starch is 1%, the methylene polyacrylamide dry powder is 3%, the tackifying fluid loss additive is 1%, the alkyl sodium sulfonate is 2%, the potassium ammonium hydrolyzed polyacrylonitrile is 1%, the sulfonated asphalt sodium salt is 5%, the sulfomethyl lignite resin is 5%, the high polymer anti-collapse agent is 2%, the anti-swelling agent is 2%, the water-based heavy mud diluent is 1%, the polyacrylamide is 2%, the anti-collapse lubricant is 3%, the high temperature resistant and salt resistant fluid loss additive is 1%, the reservoir shielding agent is 1%, the dodecyl dimethyl benzyl ammonium chloride is 1%, the glycerol polyether is 2%, the diesel oil is 2%, and the basic zinc carbonate is 1%, the total mass is 100 kg, and the amount of extra water is 35 kg.
Preferably, the preparation method of the collapse and loss preventing and fluid loss additive silicon fluorine resin compound for the drilling fluid is characterized by comprising the following steps:
the first step is as follows: adding 30 kilograms of distilled water into a reaction kettle filled with a mixture of 2 mass percent of polysilicone fluorine stabilizer, 2 mass percent of polyacrylamide and 1 mass percent of dodecyl dimethyl benzyl ammonium chloride, stirring the mixture by a stirrer to fully dissolve the mixture, adding 1 mass percent of basic zinc carbonate, then adding 3 mass percent of sulfomethyl phenolic resin, 1 mass percent of carboxymethyl starch, 3 mass percent of radical polyacrylamide dry powder, 1 mass percent of potassium ammonium hydrolysis polyacrylonitrile and 5 mass percent of sulfomethyl lignite resin, stirring the mixture by a high-speed motor for 120 minutes, and stopping stirring.
The second step is that: adding 50% by mass of bentonite, 2% by mass of galena powder and 2% by mass of limestone powder into the reaction kettle in the first step, stirring for 20 minutes by using a high-speed motor, stopping and standing for 30 +/-10 minutes, adding 3% by mass of a liquid weighting agent NaCL, 1% by mass of sodium carboxymethyl cellulose, 2% by mass of sodium alkyl sulfonate and 5% by mass of sulfonated asphalt sodium salt after the temperature is reduced to 25-35 ℃, then stirring for 60 +/-20 minutes by using the high-speed motor, stopping and cooling to room temperature after the temperature is increased to 45-60 ℃.
The third step: 1 percent of inert fluid loss additive, 1 percent of tackifying fluid loss additive, 2 percent of high molecular polymer anti-collapse agent, 2 percent of anti-swelling agent, 1 percent of water-based heavy mud diluent, 3 percent of anti-collapse lubricant, 1 percent of high temperature resistant salt resistant fluid loss additive and 1 percent of reservoir shielding agent are prepared into solution by adopting a low-speed stirring method.
The fourth step: and adding 2% of glyceryl polyether and 2% of diesel oil in percentage by mass into the reaction kettle by adopting a titration filling method, wherein the dripping time is 20 minutes, stirring at low speed while dripping, and standing for 60 minutes after dripping is finished to obtain the anti-collapse fluid loss additive silicon fluorine resin compound for the drilling fluid.
The invention has the following beneficial effects:
the invention provides an anti-collapse filtrate reducer silicon-fluorine resin compound for drilling fluid, which has strong salt resistance and is convenient to prepare and synthesize. The bentonite is hydrated in fresh water and is dispersed into fine colloidal particles to form low-permeability mud cakes, so that water loss is reduced, the surface of the clay sheet is negatively charged, the end edges of the clay sheet are positively charged and float to form a card-shaped net structure, certain structural strength is generated, and adhesion and cutting (electrostatic attraction effect) are improved.
The sodium carboxymethyl cellulose is used for reducing water loss of the water-based drilling fluid.
The viscosity-increasing fluid loss additive SK contains amide group, ionizable-COONa, -SO3Na, and can effectively maintain the stability of bentonite ions in the presence of a large amount of Na +, Ca2+, Mg2+ and the like on a polymer chain according to a certain proportion. The drilling fluid is mainly used for viscosity increasing and water loss reduction of the solid-free (low) solid phase drilling fluid, has strong Ca2+ and Mg2+ temperature resistance, and is used for fresh water brine saturated brine drilling fluid and completion fluid.
The water-based cement slurry diluent is a renewed substitute product of iron-chromium salt, replaces chromium with titanium, has less environmental pollution and high temperature resistance of 200 ℃.
The filter cake quality is improved, the wall protection and collapse prevention performance are obvious, and the complex conditions under the well such as drill sticking, well diameter change and the like can be avoided.
The drilling fluid has good rheological property, and the drilling efficiency and speed are improved.
Has strong temperature resistance, no pollution and wide applicable stratum.
The specific implementation mode is as follows:
an anti-collapse and fluid loss additive silicon fluorine resin compound for drilling fluid is characterized by comprising the following components: bentonite, galena powder, limestone powder, a liquid weighting agent NaCL, sulfomethyl phenolic resin, a polysilicone fluorine stabilizer, an inert fluid loss additive, sodium carboxymethyl cellulose, carboxymethyl starch, methylene polyacrylamide dry powder, a tackifying fluid loss additive, sodium alkyl sulfonate, potassium ammonium hydrolyzed polyacrylonitrile, sulfonated asphalt sodium salt, sulfomethyl lignite resin, a high polymer anti-collapse agent, an anti-swelling agent, a water-based heavy mud diluent, polyacrylamide, an anti-collapse lubricant, a high temperature resistant salt-resistant fluid loss additive, a reservoir shielding agent, dodecyl dimethyl benzyl ammonium chloride, glycerol polyether, diesel oil, basic zinc carbonate and water.
In a preferred embodiment of the invention, the bentonite is 50-60%, the galena powder is 1-3%, the limestone powder is 1-5%, the liquid weighting agent NaCL 1-5%, the sulfomethyl phenolic resin is 1-7%, the polysilicone fluorine stabilizer is 1-5%, the inert fluid loss additive is 1-3%, the carboxymethyl cellulose sodium salt is 1-5%, the carboxymethyl starch is 1-3%, the methylene polyacrylamide dry powder is 1-8%, the tackifying fluid loss additive is 1-3%, the alkyl sodium sulfonate is 1-6%, the potassium ammonium hydrolyzed polyacrylonitrile is 1-5%, the sulfonated asphalt sodium salt is 2-8%, the sulfomethyl lignite resin is 2-10%, the high polymer anti-collapse agent is 2-7%, the anti-swelling agent is 2-5%, the water-based heavy mud diluent is 1-3%, and the polyacrylamide is 1-5%, 1-3% of anti-collapse lubricant, 1-3% of high temperature resistant and salt resistant filtrate reducer, 1-5% of reservoir shielding agent, 1-3% of dodecyl dimethyl benzyl ammonium chloride, 1-2% of glycerol polyether, 1-5% of diesel oil, 1-3% of basic zinc carbonate and 30-40 kg of additional water.
In a preferred embodiment of the invention, the bentonite is 50%, the galena powder is 2%, the limestone powder is 2%, the liquid weighting agent NaCL 3%, the sulfomethyl phenolic resin is 3%, the polysilicone fluoride stabilizer is 2%, the inert fluid loss additive is 1%, the carboxymethyl cellulose sodium salt is 1%, the carboxymethyl starch is 1%, the methylene polyacryl amide dry powder is 3%, the tackifying fluid loss additive is 1%, the alkyl sodium sulfonate is 2%, the potassium ammonium hydrolysis polyacrylonitrile is 1%, the sulfonated asphalt sodium salt is 5%, the sulfomethyl lignite resin is 5%, the high polymer anti-collapse agent is 2%, the anti-swelling agent is 2%, the water-based heavy mud diluent is 1%, the polyacrylamide is 2%, the anti-collapse lubricant is 3%, the high temperature and salt resistant fluid loss additive is 1%, the reservoir shielding agent is 1%, the dodecyl dimethyl benzyl ammonium chloride is 1%, the glycerol polyether is 2%, the diesel oil is 2%, the basic zinc carbonate is 1%, and the amount of the additional water is 35 kg.
In a preferred embodiment of the invention, the bentonite is 50%, the galena powder is 2%, the limestone powder is 2%, the liquid weighting agent NaCL 3%, the sulfomethyl phenolic resin is 3%, the polysilicone fluoride stabilizer is 2%, the inert fluid loss additive is 1%, the carboxymethyl cellulose sodium salt is 1%, the carboxymethyl starch is 1%, the methylene polyacryl amide dry powder is 3%, the tackifying fluid loss additive is 1%, the alkyl sodium sulfonate is 2%, the potassium ammonium hydrolysis polyacrylonitrile is 1%, the sulfonated asphalt sodium salt is 5%, the sulfomethyl lignite resin is 5%, the high polymer anti-collapse agent is 2%, the anti-swelling agent is 2%, the water-based heavy mud diluent is 1%, the polyacrylamide is 2%, the anti-collapse lubricant is 3%, the high temperature and salt resistant fluid loss additive is 1%, the reservoir shielding agent is 1%, the dodecyl dimethyl benzyl ammonium chloride is 1%, the glycerol polyether is 2%, the diesel oil is 2%, and the basic zinc carbonate is 1%, and the total mass is 100 kg, the amount of additional water was 35 kg.
In a preferred embodiment of the invention, the preparation method of the anti-collapse and fluid loss additive-silicon fluorine resin compound for the drilling fluid is characterized by comprising the following steps of:
the first step is as follows: adding 30 kilograms of distilled water into a reaction kettle filled with a mixture of 2 mass percent of polysilicone fluorine stabilizer, 2 mass percent of polyacrylamide and 1 mass percent of dodecyl dimethyl benzyl ammonium chloride, stirring the mixture by a stirrer to fully dissolve the mixture, adding 1 mass percent of basic zinc carbonate, then adding 3 mass percent of sulfomethyl phenolic resin, 1 mass percent of carboxymethyl starch, 3 mass percent of radical polyacrylamide dry powder, 1 mass percent of potassium ammonium hydrolysis polyacrylonitrile and 5 mass percent of sulfomethyl lignite resin, stirring the mixture by a high-speed motor for 120 minutes, and stopping stirring.
The second step is that: adding 50% by mass of bentonite, 2% by mass of galena powder and 2% by mass of limestone powder into the reaction kettle in the first step, stirring for 20 minutes by using a high-speed motor, stopping and standing for 30 +/-10 minutes, adding 3% by mass of a liquid weighting agent NaCL, 1% by mass of sodium carboxymethyl cellulose, 2% by mass of sodium alkyl sulfonate and 5% by mass of sulfonated asphalt sodium salt after the temperature is reduced to 25-35 ℃, then stirring for 60 +/-20 minutes by using the high-speed motor, stopping and cooling to room temperature after the temperature is increased to 45-60 ℃.
The third step: 1 percent of inert fluid loss additive, 1 percent of tackifying fluid loss additive, 2 percent of high molecular polymer anti-collapse agent, 2 percent of anti-swelling agent, 1 percent of water-based heavy mud diluent, 3 percent of anti-collapse lubricant, 1 percent of high temperature resistant salt resistant fluid loss additive and 1 percent of reservoir shielding agent are prepared into solution by adopting a low-speed stirring method.
The fourth step: and adding 2% of glyceryl polyether and 2% of diesel oil in percentage by mass into the reaction kettle by adopting a titration filling method, wherein the dripping time is 20 minutes, stirring at low speed while dripping, and standing for 60 minutes after dripping is finished to obtain the anti-collapse fluid loss additive silicon fluorine resin compound for the drilling fluid.
Bentonite is called sakaguchi soil; the lead ore powder is PbS, is gray in lead, is brittle and fragile, has high density and low hardness; the limestone powder CaCO3 is white powder which can be dissolved in inorganic acid such as hydrochloric acid and is commonly used as a weighting agent of oil-based drilling fluid or completion fluid to reduce the pollution to an oil layer; the sulfomethyl phenolic resin is produced by victory drilling mud company, and the model number of the sulfomethyl phenolic resin is SMP; the polysilicate fluorine stabilizer is produced in Chongqing synthetic chemical plants, and the type of the polysilicate fluorine stabilizer is SPH; the inert fluid loss additive is produced by a drilling fluid factory in Chengdu West soil bridge Jinniu village, and the model number of the inert fluid loss additive is HL-II;
the sodium carboxymethyl cellulose is produced by chemical plants of Henan Qingfeng well drilling company, and the model number of the sodium carboxymethyl cellulose is LV-CMC; the carboxymethyl starch is produced by a three-gorge Jingxia chemical plant, the type of the carboxymethyl starch is CMS-Na, the methylene polyacrylamide dry powder is produced by a mineral separation pharmaceutical factory of silver nonferrous metal company, and the code of the carboxymethyl starch is PHMP; the viscosity-increasing fluid loss additive is produced by Kaifeng Haitian chemical plants, and the code of the viscosity-increasing fluid loss additive is SK-1; the sodium alkylsulfonate is produced by synthetic detergent factories of Tianjin suburb Chenzhuang, and the code of the sodium alkylsulfonate is AS; the potassium-ammonium hydrolyzed polyacrylonitrile is produced by Cangzhou petroleum auxiliary agent factories, and the code thereof is KNPAN; the sulfonated asphalt sodium salt Pingxiang humic acid industry general company has the code of SAS-1; the sulfomethyl lignite resin is a petrochemical plant of North China in Chongxian county, and the code of the sulfomethyl lignite resin is HMF; the high molecular polymer anti-collapse agent is produced by a Xinxiang Chen chemical plant, and the code of the high molecular polymer anti-collapse agent is PSC 90-3; the anti-swelling agent is produced by a special factory in Yun Hang Xian forest town, and the code of the anti-swelling agent is P-106; the water-based heavy mud diluent is produced by Luzhou natural gas research institute, and the code of the water-based heavy mud diluent is CT-4, 5; the polyacrylamide is produced by Nippon okay chemical development company, and the code of the polyacrylamide is PAM; the anti-collapse lubricant is produced by an auxiliary agent factory of second company of North China oilfield exploration, and the model number of the anti-collapse lubricant is RT 9051; the high-temperature-resistant and salt-resistant filtrate reducer is produced by Shengli drilling mud company, and the model number of the filtrate reducer is SG-1; the reservoir shielding agent is produced by Wulu wood calcitonin material factory, and the model number is QCX-1; the dodecyl dimethyl benzyl ammonium chloride is a third chemical plant of Jiangsu Wujin, and the model is 1227; the glyceryl polyether is produced by a No. 422 chemical plant with five routes in the mouth of Lushun, and the No. is CN 33025; the basic zinc carbonate is produced in chemical plants in the province of Huimazhen county, Sichuan Yanxi county.
The application example items and indexes of the anti-collapse and fluid loss agent-silicon fluorine resin compound product for the drilling fluid are as follows:
| item | Index (I) |
| Appearance of the product | Black powder and granules |
| Water content is less than or equal to% | 15 |
| pH value (1% aqueous solution) | 8-12 |
| The viscosity reduction rate is not less than% | 50 |
| The reduction rate of relative expansion is ≥ l | 45 |
The high-temperature and high-pressure filtration loss is controlled within the range of 25ml +/-10 ml, the final result is 21.1ml by the national standard method, the low-temperature and low-pressure filtration loss is controlled within the range of 20ml +/-10 ml, and the final result is 13.9ml by the national standard method.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications may be made in the formulation of the embodiments without departing from the spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. An anti-collapse and fluid loss additive silicon fluorine resin compound for drilling fluid is characterized by comprising the following components: bentonite, galena powder, limestone powder, a liquid weighting agent NaCL, sulfomethyl phenolic resin, a polysilicone fluorine stabilizer, an inert fluid loss additive, sodium carboxymethyl cellulose, carboxymethyl starch, methylene polyacrylamide dry powder, a tackifying fluid loss additive, sodium alkyl sulfonate, potassium ammonium hydrolyzed polyacrylonitrile, sulfonated asphalt sodium salt, sulfomethyl lignite resin, a high polymer anti-collapse agent, an anti-swelling agent, a water-based heavy mud diluent, polyacrylamide, an anti-collapse lubricant, a high temperature resistant salt-resistant fluid loss additive, a reservoir shielding agent, dodecyl dimethyl benzyl ammonium chloride, glycerol polyether, diesel oil, basic zinc carbonate and water.
2. The anti-collapse and fluid loss additive silicon-fluorine resin compound for the drilling fluid as claimed in claim 1, which is characterized by comprising the following components in percentage by mass: 50-60% of bentonite, 1-3% of galena powder, 1-5% of limestone powder, 1-5% of liquid weighting agent NaCL1, 1-7% of sulfomethyl phenolic resin, 1-5% of polysilicone fluorine stabilizer, 1-3% of inert fluid loss additive, 1-5% of sodium carboxymethyl cellulose, 1-3% of carboxymethyl starch, 1-8% of methylene polyacrylamide dry powder, 1-3% of tackifying fluid loss additive, 1-6% of alkyl sodium sulfonate, 1-5% of potassium ammonium hydrolysis polyacrylonitrile, 2-8% of sulfonated asphalt sodium salt, 2-10% of sulfomethyl lignite resin, 2-7% of high molecular polymer anti-collapse agent, 2-5% of anti-expansion agent, 1-3% of water-based heavy mud diluent, 1-5% of polyacrylamide and 1-3% of anti-collapse lubricant, 1-3% of high temperature resistant and salt resistant filtrate reducer, 1-5% of reservoir shielding agent, 1-3% of dodecyl dimethyl benzyl ammonium chloride, 1-2% of glycerol polyether, 1-5% of diesel oil, 1-3% of basic zinc carbonate and 30-40 kg of additional water.
3. The silicon-fluorine resin compound as an anti-collapse fluid loss additive for drilling fluid as claimed in claim 1, wherein the bentonite is 50%, the galena powder is 2%, the limestone powder is 2%, the liquid weighting agent NaCL 3%, the sulfomethyl phenol-formaldehyde resin is 3%, the polysilicone-fluorine stabilizer is 2%, the inert fluid loss additive is 1%, the carboxymethyl cellulose sodium salt is 1%, the carboxymethyl starch is 1%, the methylene polyacryl-ammonium dry powder is 3%, the viscosity increasing and fluid loss additive is 1%, the alkyl sodium sulfonate is 2%, the potassium ammonium hydrolyzed polyacrylonitrile is 1%, the sulfonated asphalt sodium salt is 5%, the sulfonated methyl lignite resin is 5%, the high molecular polymer anti-collapse agent is 2%, the anti-swelling agent is 2%, the water-based heavy mud diluent is 1%, the polyacrylamide is 2%, the anti-collapse lubricant is 3%, the high temperature and salt resistant fluid loss additive is 1%, the reservoir shielding agent is 1%, the dodecyl dimethyl benzyl ammonium chloride is 1%, the glycerol polyether is 2, 2% of diesel oil, 1% of basic zinc carbonate and 35 kg of additional water.
4. The silicon-fluorine resin compound as an anti-collapse fluid loss additive for drilling fluid of claim 3, wherein the bentonite is 50%, the galena powder is 2%, the limestone powder is 2%, the liquid weighting agent NaCL 3%, the sulfomethyl phenol-formaldehyde resin is 3%, the polysilicone-fluorine stabilizer is 2%, the inert fluid loss additive is 1%, the carboxymethyl cellulose sodium salt is 1%, the carboxymethyl starch is 1%, the methylene polyacryl-ammonium dry powder is 3%, the viscosity increasing and fluid loss additive is 1%, the alkyl sodium sulfonate is 2%, the potassium ammonium hydrolyzed polyacrylonitrile is 1%, the sulfonated asphalt sodium salt is 5%, the sulfonated methyl lignite resin is 5%, the high molecular polymer anti-collapse agent is 2%, the anti-swelling agent is 2%, the water-based heavy mud diluent is 1%, the polyacrylamide is 2%, the anti-collapse lubricant is 3%, the high temperature and salt resistant fluid loss additive is 1%, the reservoir shielding agent is 1%, the dodecyl dimethyl benzyl ammonium chloride is 1%, the glycerol polyether is 2%, 2 percent of diesel oil and 1 percent of basic zinc carbonate, the total mass of the diesel oil and the basic zinc carbonate is 100 kilograms, and the amount of extra water is 35 kilograms.
5. The preparation method of the anti-collapse and fluid loss additive-silicon fluorine resin compound for the drilling fluid as claimed in claim 1, characterized in that the method comprises the following steps:
the first step is as follows: adding 30 kilograms of distilled water into a reaction kettle filled with a mixture of 2 mass percent of polysilicone fluorine stabilizer, 2 mass percent of polyacrylamide and 1 mass percent of dodecyl dimethyl benzyl ammonium chloride, stirring the mixture by a stirrer to fully dissolve the mixture, adding 1 mass percent of basic zinc carbonate, then adding 3 mass percent of sulfomethyl phenolic resin, 1 mass percent of carboxymethyl starch, 3 mass percent of radical polyacrylamide dry powder, 1 mass percent of potassium ammonium hydrolysis polyacrylonitrile and 5 mass percent of sulfomethyl lignite resin, stirring the mixture by a high-speed motor for 120 minutes, and stopping stirring.
The second step is that: adding 50% by mass of bentonite, 2% by mass of galena powder and 2% by mass of limestone powder into the reaction kettle in the first step, stirring for 20 minutes by using a high-speed motor, stopping and standing for 30 +/-10 minutes, adding 3% by mass of a liquid weighting agent NaCL, 1% by mass of sodium carboxymethyl cellulose, 2% by mass of sodium alkyl sulfonate and 5% by mass of sulfonated asphalt sodium salt after the temperature is reduced to 25-35 ℃, then stirring for 60 +/-20 minutes by using the high-speed motor, stopping and cooling to room temperature after the temperature is increased to 45-60 ℃.
The third step: 1 percent of inert fluid loss additive, 1 percent of tackifying fluid loss additive, 2 percent of high molecular polymer anti-collapse agent, 2 percent of anti-swelling agent, 1 percent of water-based heavy mud diluent, 3 percent of anti-collapse lubricant, 1 percent of high temperature resistant salt resistant fluid loss additive and 1 percent of reservoir shielding agent are prepared into solution by adopting a low-speed stirring method.
The fourth step: and adding 2% of glyceryl polyether and 2% of diesel oil in percentage by mass into the reaction kettle by adopting a titration filling method, wherein the dripping time is 20 minutes, stirring at low speed while dripping, and standing for 60 minutes after dripping is finished to obtain the anti-collapse fluid loss additive silicon fluorine resin compound for the drilling fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911129480.0A CN110760294A (en) | 2019-11-18 | 2019-11-18 | Anti-collapse filtrate reducer silicon-fluorine resin compound for drilling fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911129480.0A CN110760294A (en) | 2019-11-18 | 2019-11-18 | Anti-collapse filtrate reducer silicon-fluorine resin compound for drilling fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110760294A true CN110760294A (en) | 2020-02-07 |
Family
ID=69338292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911129480.0A Pending CN110760294A (en) | 2019-11-18 | 2019-11-18 | Anti-collapse filtrate reducer silicon-fluorine resin compound for drilling fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110760294A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116240004A (en) * | 2021-12-08 | 2023-06-09 | 中国石油天然气股份有限公司 | Shale gas horizontal well wall stable water-based drilling fluid |
| CN116905988A (en) * | 2023-09-11 | 2023-10-20 | 天津市滨海新区大港鼎澄工贸有限公司 | Drilling method for preventing drilling fluid from invading |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4061191A (en) * | 1976-03-12 | 1977-12-06 | Shell Oil Company | Method for gaseous sand consolidation treatment of weak gas sands |
| CN103013471A (en) * | 2011-09-26 | 2013-04-03 | 唐继平 | Method for drilling well by using UDM-1 unconventional well-drilling fluid system |
| CN105295872A (en) * | 2014-07-17 | 2016-02-03 | 中国石油天然气股份有限公司 | Drilling fluid suitable for compact sandstone reservoir |
| CN109694698A (en) * | 2017-10-24 | 2019-04-30 | 陕西延长石油(集团)有限责任公司研究院 | A kind of drilling fluid and preparation method thereof in horizontal well coal seam |
-
2019
- 2019-11-18 CN CN201911129480.0A patent/CN110760294A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4061191A (en) * | 1976-03-12 | 1977-12-06 | Shell Oil Company | Method for gaseous sand consolidation treatment of weak gas sands |
| CN103013471A (en) * | 2011-09-26 | 2013-04-03 | 唐继平 | Method for drilling well by using UDM-1 unconventional well-drilling fluid system |
| CN105295872A (en) * | 2014-07-17 | 2016-02-03 | 中国石油天然气股份有限公司 | Drilling fluid suitable for compact sandstone reservoir |
| CN109694698A (en) * | 2017-10-24 | 2019-04-30 | 陕西延长石油(集团)有限责任公司研究院 | A kind of drilling fluid and preparation method thereof in horizontal well coal seam |
Non-Patent Citations (3)
| Title |
|---|
| 俞志明等: "《中国化工商品大全：1995年版 第一卷》", 31 January 1996, 中国物资出版社 * |
| 李才雄等: "聚硅氟钻井液在G29-P1井的应用 ", 《钻井液与完井液》 * |
| 郑晓宇等: "《油田化学品》", 31 January 2001, 化学工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116240004A (en) * | 2021-12-08 | 2023-06-09 | 中国石油天然气股份有限公司 | Shale gas horizontal well wall stable water-based drilling fluid |
| CN116905988A (en) * | 2023-09-11 | 2023-10-20 | 天津市滨海新区大港鼎澄工贸有限公司 | Drilling method for preventing drilling fluid from invading |
| CN116905988B (en) * | 2023-09-11 | 2023-12-05 | 天津市滨海新区大港鼎澄工贸有限公司 | Drilling method for preventing drilling fluid from invading |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107532075B (en) | Oil and gas treatment compositions comprising hydroxyethyl cellulose and crosslinked polyvinylpyrrolidone | |
| US9650299B2 (en) | Methods of using downhole compositions including an ion-sequestering compound | |
| US8252728B2 (en) | Drilling fluids comprising hydroxylated polymers | |
| EP2524017B1 (en) | Treatment fluids for wetting control of multiple rock types and associated methods | |
| CN106381135B (en) | High-temperature-resistant low-fluid-loss wall-protecting water-based drilling fluid | |
| CA2912539A1 (en) | Silica gel as a viscosifier for subterranean fluid system | |
| US5054552A (en) | Breaker system for aqueous fluids containing xanthan gums | |
| CN110760294A (en) | Anti-collapse filtrate reducer silicon-fluorine resin compound for drilling fluid | |
| CN113583650B (en) | Viscosity-reducing oil displacement agent for viscosity-reducing composite flooding of common heavy oil reservoir and preparation method and application thereof | |
| WO2016088141A2 (en) | Composition of drilling fluid and method useful in drilling boreholes in water sensitive formations | |
| WO2014047132A1 (en) | Use of aqueous alkali aluminosilicate for profile modification, water control and stabilization | |
| CN101638576B (en) | Shielding and temporary plugging gelling agent for drilling fluid and production method and use method thereof | |
| NO331827B1 (en) | Oil-based drilling and auxiliary fluid, its use and method of increasing thermal stability | |
| CN110551488B (en) | Clay inhibitor for drilling fluid and preparation method thereof | |
| CN112442342B (en) | Using and maintaining method of upper stratum collapse-preventing drilling fluid | |
| CA2679463A1 (en) | Stable sodium thiosulfate based fluidized polymer suspensions of hydroxyethyl cellulose for oilfield services | |
| CN113803003B (en) | Plugging method for nano-micron development shale pores | |
| CN110713822A (en) | High-temperature high-density oil-based drilling fluid | |
| US20050065039A1 (en) | Fluids for use in oilfield development comprising deacetylated xanthan gum and at least one compound increasing the ionic strength of the medium | |
| CN116496766B (en) | Acid-soluble weighting agent and preparation method and application thereof | |
| CN114539995B (en) | Polyamine complex salt water-based drilling fluid and preparation method thereof | |
| CN112375550B (en) | Upper stratum collapse-prevention drilling fluid and preparation method thereof | |
| CN1066283A (en) | The novel treatment agent of fine migration in the inhibited oil gas-bearing formation | |
| CN105647492B (en) | Full cationic drilling fluid | |
| CN103173199A (en) | Novel JQ well killing protection liquid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200207 |
|
| RJ01 | Rejection of invention patent application after publication |