CN104277800A - Ideal filling film-formation wall cementing agent for drilling fluids - Google Patents
Ideal filling film-formation wall cementing agent for drilling fluids Download PDFInfo
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- CN104277800A CN104277800A CN201410377529.5A CN201410377529A CN104277800A CN 104277800 A CN104277800 A CN 104277800A CN 201410377529 A CN201410377529 A CN 201410377529A CN 104277800 A CN104277800 A CN 104277800A
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- 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
-
- 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
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
-
- 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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/04—Hulls, shells or bark containing well drilling or treatment fluids
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- 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)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to an ideal filling film-formation wall cementing agent for drilling fluids, belonging to the technical field of treating agents for drilling fluids. The technical scheme is as follows: the film-formation wall cementing agent comprises monomers 2-acrylamido-2-methallyl sulfonate and ammonium acrylate, initiators ammonium persulfate and ammonium ferrous sulfosulfite, a complexing agent EDTA (ethylene diamine tetraacetic acid), a crosslinking agent N,N-methylene-bis acrylamide and fillers 100-mesh natural mica powder and natural plant fiber. The preparation method comprises the following steps: adding the monomers, crosslinking agent and complexing agent into the reaction kettle, adding the filler natural mica powder while stirring, heating to 40 DEG C, charging nitrogen to remove oxygen, adding the initiators to perform polymerization for 1820 minutes, granulating, drying, pulverizing into dry powder, adding the natural plant fiber powder, and evenly mixing to obtain the finished product. Under the crosslinking and binding effects of the filling and adsorption, the film-formation wall cementing agent forms a low-permeability compact plugging film (shell) on the well wall rock surface, thereby effectively plugging strata with different permeabilities and microcrack mudstone strata.
Description
One, technical field
The present invention relates to a kind of preparation method of drilling fluid treatment agent, by modified natural vegetable fibre, film-forming high molecular polymkeric substance, natural mineral under ideal packing theory and deposition theory instruct, the solid wall agent of a kind of high-efficient drilling fluid filling film forming of development and production.
Two. background technology
In Process of Oil Well Drilling, drilling fluid, when running into stratum microfracture and perviousness hole, infiltrates stratum by the effect of pressure reduction, causes drilling fluid loss loss, makes borehole wall Shale Hydration disperse formation to cave in.In adjust well drilling process, because water filling causes formation pressure sections disorderly, often run into the technical barrier of upper formation surpressure, understratum pressure deficit (namely upper spray is lower leaks).Solution conventional is at present that the high molecular polymer added containing potassium or ammonium suppresses the aquation on stratum to be disperseed, or adds plugging agent, and these class methods are for the solid wall DeGrain of filtrate reducing of sandy strata, microfracture and perviousness porous formation.The solid wall agent of ideal filling film forming prepared by the present invention; first minute aperture road ideal filling is blocked in drilling fluid; then special organic polymer is utilized to concentrate on rock of borehole surface formation micella; rely on micella and micelle interface suction and deformability thereof; cross-linking, be bonded in rock of borehole surface and form the fine and close plugged zone of ultra-low penetration; shutoff stratum microfracture and perviousness hole fast and effectively; protective layer is formed at the borehole wall; strengthen mud cake plugging strength; increase substantially Formation bearing pressure, improve the solid wall to broken formation.There is following functions:
1. utilize special organic polymer; by ideal filling and cross-linking, bonding; the fine and close plugging film (shell) of low permeability is formed on rock of borehole surface; effective shutoff different permeability stratum and microfracture mudstone stratum; protective layer is formed in the periphery of the borehole wall; strengthen internal filter cake plugging strength, by drilling fluid and filtrate thereof and stratum completely isolated, reach zero osmotic effect.
2. make drilling fluid reach best plugging effect, also by 100 order vibratory screening apparatuss while improving Formation bearing pressure, meet drilling fluid normal circulation and solid controlling needs.
3. effective shutoff different permeability stratum and microfracture mud ground layer, become protective layer in the peripheral row of the borehole wall, reduces drilling fluid to the infringement of reservoir, reservoir protec-tion.
Three, summary of the invention
Composition of the present invention comprises: can aggregate into high molecular monomer 2-acrylamide-2-methylpro panesulfonic acid and ammonium acrylate, improve filling agent 100 object natural mica powder and the natural plant fibre (plant shell such as nut-shell etc. are ground into 100 order powder) of polymer strength, linking agent N.N-methylene-bisacrylamide, complexing agent EDTA, initiator ammonium persulfate and ferrous ammonium sulphate, ratio between two is 3: 2.This product prepares scheme: first drop into above-mentioned monomer, linking agent, complexing agent in a kettle., filling agent natural mica powder is dropped into gradually under strong stirring, then 40 DEG C are heated to, inflated with nitrogen deoxygenation 30 minutes, add above-mentioned initiator initiated polymerization, after 180 minutes to be polymerized, the granulation of colloid product is dried and pulverizes, then be finished product with natural plant fibre powder stirring and evenly mixing.
Four, embodiment
The preparation of the solid wall agent of ideal filling film forming of case study on implementation 1. drilling fluid
The first step, take the aqueous solution 5000g of 2-acrylamide-2-methylpro panesulfonic acid 20-22%, neutrality is neutralized to sodium hydroxide, take the ammonium acrylate 1000g of 20-22%, linking agent N.N-methylene-bisacrylamide 2g, complexing agent EDTA0.5g, filling agent natural mica powder 360g, first above 4 kinds of materials are dropped in reactor, under agitation add natural mica powder gradually.
Second step, is warmed up to 40 DEG C.
3rd step, inflated with nitrogen 30 minutes.
4th step, adds initiator and is polymerized 180 minutes.Initiator dosage is 5/10000ths of monomer working substance.
5th step, is dried and crushed into 100 order powder by the granulating from colloid of polymerization.
6th step, can obtain about 2000g powder product by above-mentioned powder and 360g natural plant fibre powder stirring and evenly mixing.
This product the key technical indexes meets table 1 and requires:
Table 1 technical indicator
| Project | Index |
| Outward appearance | Charge of flowable solids powder |
| Screen over-size (aperture 0.18mm standard sieve), % | ≤10.0 |
| Moisture, % | ≤10.0 |
| Drilling fluid density variable quantity, g/cm 3 | ±0.05 |
| Filter loss closed by drilling fluid, mL | ≤30.0 |
Range of application and consumption:
The solid wall agent of drilling fluid ideal filling film forming and all kinds of drilling fluid system have good compatibleness, dosage is 3-4%, all kinds of conventional water base drilling fluid system can be changed into the ultra-low penetration ideal filling filming drilling fluid system with the solid wall energy power of extremely strong shutoff, and to drilling fluid rheology and Effects of Density very little.
Claims (2)
1. the drilling fluid composition of the solid wall agent of the special ideal filling film forming of thunder, comprise: high molecular monomer 2-acrylamide-2-methylpro panesulfonic acid and ammonium acrylate can be aggregated into, improve filling agent 100 object natural mica powder and the natural plant fibre (plant shell such as nut-shell etc. are ground into 100 order powder) of polymer strength, linking agent N.N-methylene-bisacrylamide, complexing agent EDTA, initiator ammonium persulfate and ferrous ammonium sulphate, ratio between two is 3: 2.This product prepares scheme: first drop into above-mentioned monomer, linking agent, complexing agent in a kettle., filling agent natural mica powder is dropped into gradually under strong stirring, then 40 DEG C are heated to, inflated with nitrogen deoxygenation 30 minutes, add above-mentioned initiator initiated polymerization, after 180 minutes to be polymerized, the granulation of colloid product is dried and pulverizes, then be finished product with natural plant fibre powder stirring and evenly mixing.
2. the drilling fluid compound method of the solid wall agent of the special ideal filling film forming of thunder, it is characterized in that first dropping into above-mentioned monomer, linking agent, complexing agent in a kettle., above-mentioned weighting agent natural mica powder is dropped into gradually under strong stirring, then 40 DEG C are heated to, inflated with nitrogen deoxygenation 30 minutes, adds the polymerization of above-mentioned initiator, after 180 minutes to be polymerized, colloid product granulation ovendry power is broken into 100 order powder, then adds natural plant fibre powder and carry out stirring and evenly mixing and be finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410377529.5A CN104277800A (en) | 2014-07-28 | 2014-07-28 | Ideal filling film-formation wall cementing agent for drilling fluids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410377529.5A CN104277800A (en) | 2014-07-28 | 2014-07-28 | Ideal filling film-formation wall cementing agent for drilling fluids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104277800A true CN104277800A (en) | 2015-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410377529.5A Pending CN104277800A (en) | 2014-07-28 | 2014-07-28 | Ideal filling film-formation wall cementing agent for drilling fluids |
Country Status (1)
| Country | Link |
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| CN (1) | CN104277800A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298385A (en) * | 2015-11-05 | 2016-02-03 | 中石化石油工程技术服务有限公司 | Drilling method of reinforcing-while-drilling shale |
| CN106479459A (en) * | 2016-08-29 | 2017-03-08 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of geminal fibers is with thin blocking agent of brill and preparation method thereof |
| CN107382128A (en) * | 2017-08-09 | 2017-11-24 | 安徽中铁工程材料科技有限公司 | A kind of anti-collapse type polymer mud powder and preparation method thereof and purposes |
| CN108395529A (en) * | 2018-04-14 | 2018-08-14 | 石家庄华莱鼎盛科技有限公司 | Drilling fluid solid wall agent modified resin polymer and preparation method thereof |
| CN114716984A (en) * | 2022-04-14 | 2022-07-08 | 中国石油大学(华东) | Cementing and plugging type wall fixing agent for water-based drilling fluid and preparation method and application thereof |
| CN116063991A (en) * | 2021-11-01 | 2023-05-05 | 中石化石油工程技术服务有限公司 | Adhesive cementing wall-fixing agent for shale stratum and preparation method and application thereof |
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| CN101089116A (en) * | 2007-07-11 | 2007-12-19 | 中国石油大学(华东) | Adaptive leak preventing and stopping agent for drilling fluid |
| CN101724383A (en) * | 2008-10-15 | 2010-06-09 | 中国石油天然气股份有限公司 | Drilling fluid plugging agent while drilling |
| CN102127400A (en) * | 2010-11-24 | 2011-07-20 | 中国海洋石油总公司 | Plugging agent for drilling fluid and protecting low percolation reservoir |
| CN103265934A (en) * | 2013-05-02 | 2013-08-28 | 中国石油天然气股份有限公司 | Profile control agent for water injection well, and preparation method and application thereof |
| CN103937471A (en) * | 2014-03-21 | 2014-07-23 | 中国石油天然气股份有限公司冀东油田分公司钻采工艺研究院 | Temperature-resistance drilling fluid drill-feeding plugging agent and its preparation method |
-
2014
- 2014-07-28 CN CN201410377529.5A patent/CN104277800A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101089116A (en) * | 2007-07-11 | 2007-12-19 | 中国石油大学(华东) | Adaptive leak preventing and stopping agent for drilling fluid |
| CN101724383A (en) * | 2008-10-15 | 2010-06-09 | 中国石油天然气股份有限公司 | Drilling fluid plugging agent while drilling |
| CN102127400A (en) * | 2010-11-24 | 2011-07-20 | 中国海洋石油总公司 | Plugging agent for drilling fluid and protecting low percolation reservoir |
| CN103265934A (en) * | 2013-05-02 | 2013-08-28 | 中国石油天然气股份有限公司 | Profile control agent for water injection well, and preparation method and application thereof |
| CN103937471A (en) * | 2014-03-21 | 2014-07-23 | 中国石油天然气股份有限公司冀东油田分公司钻采工艺研究院 | Temperature-resistance drilling fluid drill-feeding plugging agent and its preparation method |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298385A (en) * | 2015-11-05 | 2016-02-03 | 中石化石油工程技术服务有限公司 | Drilling method of reinforcing-while-drilling shale |
| CN106479459A (en) * | 2016-08-29 | 2017-03-08 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of geminal fibers is with thin blocking agent of brill and preparation method thereof |
| CN107382128A (en) * | 2017-08-09 | 2017-11-24 | 安徽中铁工程材料科技有限公司 | A kind of anti-collapse type polymer mud powder and preparation method thereof and purposes |
| CN108395529A (en) * | 2018-04-14 | 2018-08-14 | 石家庄华莱鼎盛科技有限公司 | Drilling fluid solid wall agent modified resin polymer and preparation method thereof |
| CN109401737A (en) * | 2018-04-14 | 2019-03-01 | 石家庄华莱鼎盛科技有限公司 | Drilling fluid solid wall agent modified resin polymer and preparation method thereof |
| CN116063991A (en) * | 2021-11-01 | 2023-05-05 | 中石化石油工程技术服务有限公司 | Adhesive cementing wall-fixing agent for shale stratum and preparation method and application thereof |
| CN116063991B (en) * | 2021-11-01 | 2024-04-02 | 中石化石油工程技术服务有限公司 | Adhesive cementing wall-fixing agent for shale stratum and preparation method and application thereof |
| CN114716984A (en) * | 2022-04-14 | 2022-07-08 | 中国石油大学(华东) | Cementing and plugging type wall fixing agent for water-based drilling fluid and preparation method and application thereof |
| CN114716984B (en) * | 2022-04-14 | 2023-03-10 | 中国石油大学(华东) | Cementing and plugging type wall fixing agent for water-based drilling fluid and preparation method and application thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150114 |