CN105199683A - Poly solid-free drilling fluid - Google Patents
Poly solid-free drilling fluid Download PDFInfo
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- CN105199683A CN105199683A CN201410276209.0A CN201410276209A CN105199683A CN 105199683 A CN105199683 A CN 105199683A CN 201410276209 A CN201410276209 A CN 201410276209A CN 105199683 A CN105199683 A CN 105199683A
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- drilling fluid
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- free drilling
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Abstract
The invention provides poly solid-free drilling fluid in petroleum drilling and production and belongs to the field of oil field drilling engineering. The problem that in the short-time powerful drilling process of all structures at difficult collapse positions and without fluid display, severe well leakage occurs easily is solved. The poly solid-free drilling fluid is prepared from, by weight, 0.05-0.2 part of hydrolyzed polyacrylamide, 0.05-0.15 part of potassium polyacrylate, 0.05-0.15 part of sodium polyacrylate and 100 parts of water. The poly solid-free drilling fluid is beneficial for protecting oil and gas layers, the problems that clay particles block the oil and gas layers, and the water blocking effect occurs are avoided, the yield of production layers is increased, and the poly solid-free drilling fluid is particularly suitable for short-time strong drilling of all the structures with severe well leakage, at the difficult collapse positions and without fluid display.
Description
Technical field
The invention belongs to oil drilling engineering field, be specifically related to the poly clay-free drilling fluid in a kind of petroleum drilling and mining.
Background technology
Rapid drilling program is by using the real-time computer analysis of well system energy expenditure to improve drilling efficiency, can reducing the optimizer of 35% rig time.The benefit of rapid drilling program comprises and improves completion efficiency and cementing quality, reach evenly size of the hole and save drilling tool.Rapid drilling program has erected bridge between science and operational method, can reduce drilling cost, is early gone into operation in oil field, improves the competitive capacity such as day brill.This rapid drilling program of Exxon Mobil Corporation's exploitation, under different drilling fluid densities bores the various different condition such as hard formation and soft formation, deep-well and shallow well, high angle deviated well and orientation well, all improves drilling efficiency.Application shows, this program is all successful at prospect pit, out-stepping well and recovery well.
But, non-layer position of easily collapsing, without fluid display each structure the short period of time strong brill in easily there is the situation that leakage is serious.
Summary of the invention
For solving the problem, the invention provides the poly clay-free drilling fluid in a kind of petroleum drilling and mining, adopting following technical scheme:
A kind of poly clay-free drilling fluid, it is characterized in that, by weight, its formula is: hydro-polyacrylamide 0.05 ~ 0.2 part; Polyacrylic acid potassium 0.05 ~ 0.15 part; Sodium polyacrylate 0.05 ~ 0.15 part, 100 parts, water.
Preferably, described hydro-polyacrylamide be acrylamide add mass concentration be 2 ~ 5% caustic soda soln hydrolysis form.
Beneficial effect of the present invention is as follows:
Poly clay-free drilling fluid provided by the invention, has the ability of the landwaste that carries preferably and suspend, and can form fine and close adsorption film on the borehole wall, has certain retaining capacity; And have lubrication and drag reduction effect preferably.It then has lower density compared with the mud containing clay, simultaneously viscosity also adjustable, and mobility is fine, thus can improve the detritus efficiency of hole subdrilling head.Poly clay-free drilling fluid provided by the invention is conducive to protection oil, gas-bearing formation, there will not be clay particle to block the problem of oil, gas-bearing formation and water-blocking effect, can improve the productive rate of productive zone.
Poly clay-free drilling fluid provided by the invention, is suitable for serious, the non-layer position of easily collapsing of leakage, constructs in the strong brill of short period of time without each of fluid display.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
embodiment 1
A kind of poly clay-free drilling fluid, it is characterized in that, by weight, its formula is: hydro-polyacrylamide 0.05 ~ 0.1 part; Polyacrylic acid potassium 0.05 ~ 0.1 part; Sodium polyacrylate 0.1 ~ 0.15 part, 100 parts, water.
Preferably, described hydro-polyacrylamide be acrylamide add mass concentration be 5% caustic soda soln hydrolysis form.
embodiment 2
A kind of poly clay-free drilling fluid, it is characterized in that, by weight, its formula is: hydro-polyacrylamide 0.1 ~ 0.2 part; Polyacrylic acid potassium 0.1 ~ 0.15 part; Sodium polyacrylate 0.05 ~ 0.1 part, 100 parts, water.
Preferably, described hydro-polyacrylamide be acrylamide add mass concentration be 2% caustic soda soln hydrolysis form.
embodiment 3
A kind of poly clay-free drilling fluid, it is characterized in that, by weight, its formula is: hydro-polyacrylamide 0.05 ~ 0.2 part; Polyacrylic acid potassium 0.05 ~ 0.15 part; Sodium polyacrylate 0.05 ~ 0.15 part, 100 parts, water.
Preferably, described hydro-polyacrylamide be acrylamide add mass concentration be 3% caustic soda soln hydrolysis form.
embodiment 4
A kind of poly clay-free drilling fluid, it is characterized in that, by weight, its formula is: hydro-polyacrylamide 0.15 ~ 0.2 part; Polyacrylic acid potassium 0.1 ~ 0.15 part; Sodium polyacrylate 0.1 ~ 0.15 part, 100 parts, water.
Preferably, described hydro-polyacrylamide be acrylamide add mass concentration be 3 ~ 4% caustic soda soln hydrolysis form.
Claims (2)
1. a poly clay-free drilling fluid, is characterized in that, by weight, its formula is: hydro-polyacrylamide 0.05 ~ 0.2 part; Polyacrylic acid potassium 0.05 ~ 0.15 part; Sodium polyacrylate 0.05 ~ 0.15 part, 100 parts, water.
2. poly clay-free drilling fluid according to claim 1, is characterized in that, described hydro-polyacrylamide be acrylamide add mass concentration be 2 ~ 5% caustic soda soln hydrolysis form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410276209.0A CN105199683A (en) | 2014-06-20 | 2014-06-20 | Poly solid-free drilling fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410276209.0A CN105199683A (en) | 2014-06-20 | 2014-06-20 | Poly solid-free drilling fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105199683A true CN105199683A (en) | 2015-12-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410276209.0A Pending CN105199683A (en) | 2014-06-20 | 2014-06-20 | Poly solid-free drilling fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105199683A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2168531C1 (en) * | 1999-11-09 | 2001-06-10 | Пеньков Александр Иванович | Clay-free drilling fluid for exposing productive formations |
| CN1530418A (en) * | 2003-03-10 | 2004-09-22 | 长庆石油勘探局工程技术研究院 | Secondary organic cationic polymer well drilling liquid |
| CN101429424A (en) * | 2008-12-15 | 2009-05-13 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Di-kalium ion-polymer drilling fluid with strong rejection capability |
| CN102373034A (en) * | 2010-08-10 | 2012-03-14 | 中国石油化工集团公司 | Novel drilling fluid for low permeability gas reservoir and production method thereof |
| CN102786917A (en) * | 2011-10-21 | 2012-11-21 | 吴景华 | Novel solid free drilling fluid for deep mineral exploration complex formation PSP |
| CN103013467A (en) * | 2012-12-22 | 2013-04-03 | 中国石油大学(华东) | Nonclay one-way plugging drilling fluid |
| CN103834370A (en) * | 2014-03-06 | 2014-06-04 | 北京探矿工程研究所 | Ultralow-temperature-resistant calcium-based solid-free drilling fluid for drilling in frozen soil layer or severe cold area |
-
2014
- 2014-06-20 CN CN201410276209.0A patent/CN105199683A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2168531C1 (en) * | 1999-11-09 | 2001-06-10 | Пеньков Александр Иванович | Clay-free drilling fluid for exposing productive formations |
| CN1530418A (en) * | 2003-03-10 | 2004-09-22 | 长庆石油勘探局工程技术研究院 | Secondary organic cationic polymer well drilling liquid |
| CN101429424A (en) * | 2008-12-15 | 2009-05-13 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Di-kalium ion-polymer drilling fluid with strong rejection capability |
| CN102373034A (en) * | 2010-08-10 | 2012-03-14 | 中国石油化工集团公司 | Novel drilling fluid for low permeability gas reservoir and production method thereof |
| CN102786917A (en) * | 2011-10-21 | 2012-11-21 | 吴景华 | Novel solid free drilling fluid for deep mineral exploration complex formation PSP |
| CN103013467A (en) * | 2012-12-22 | 2013-04-03 | 中国石油大学(华东) | Nonclay one-way plugging drilling fluid |
| CN103834370A (en) * | 2014-03-06 | 2014-06-04 | 北京探矿工程研究所 | Ultralow-temperature-resistant calcium-based solid-free drilling fluid for drilling in frozen soil layer or severe cold area |
Non-Patent Citations (1)
| Title |
|---|
| 周金葵: "《钻井液工艺技术》", 28 February 2009, 石油工业出版社 * |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151230 |
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| RJ01 | Rejection of invention patent application after publication |