CN105154039A - Drilling mud for drilling ultra-deep well - Google Patents
Drilling mud for drilling ultra-deep well Download PDFInfo
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- CN105154039A CN105154039A CN201410264479.XA CN201410264479A CN105154039A CN 105154039 A CN105154039 A CN 105154039A CN 201410264479 A CN201410264479 A CN 201410264479A CN 105154039 A CN105154039 A CN 105154039A
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Abstract
The invention provides a drilling mud for drilling an ultra-deep well in oil drilling and production, and belongs to the field of oil field drilling engineering. In order to overcome the problem that the present common drilling mud can not meet the requirement of the complex geological condition in deep well section of the ultra-deep well, the drilling mud for drilling the ultra-deep well provided by the invention is characterized in that the formula comprises, by weight, 15-30 parts of bentonite, 1-2 parts of potassium humate, 2-5 parts of sulfomethyl phenol formaldehyde resin, 0.5-1.5 parts of sulfonated sodium polyacrylate, 0.5-1 part of quicklime, 3-5 parts of walchowite, 0.2-0.5 part of hydroxyethyl cellulose, 0.2-0.5 part of SPAN-80, 0.1-0.3 part of positive sol, 0.1-3 parts of iron titanate and 1000 parts of water. The drilling mud for drilling the ultra-deep well can avoid accidents such as borehole wall collapse and sticking, can increase the machinery drilling speed properly, is suitable for ultra-deep well, slim hole well, directional well, special well with sidetracking and the like, highly-deviated well and horizontal well, and is also suitable for the well which has complex geological condition in deep well section, is at high temperature, and is soaked in the gypsiferous salt and air water.
Description
Technical field
The invention belongs to oil drilling engineering field, be specifically related to the mud crept into for ultra deep well in a kind of petroleum drilling and mining.
Background technology
Ultra deep well generally refers to that well (hole) is deeply more than the drilling well of 6000 ~ 8000 meters.
Ultra deep well is mainly used in two aspects: one is in petroleum geology generaI investigation, and the hydrocarbon-bearing pool in formation deep is drilled, or carries out the probing on standard stratum for oil field geologic; Two is geoscience research project for country or international co-operation and the crustal structure scientific drilling that carries out.
At present drilling well the darkest is in the world С Г 3 well that USSR (Union of Soviet Socialist Republics) Kola is drilled to, and has bored reach more than 12262 rice by 1989, is forced to stop because of technical reason afterwards, plan to bore reach 15000 meters dark.It is the part performing world's litre geosphere plan.The quantity of the ultra deep well completion of more than 6000 meters, the U.S. has more than 400 mouthfuls, and major part is that each oil company completes, and the darkest 9583 meters is a bite Continental Science deep-wells.The ultra deep well of more than 7000 meters, China completes two mouthfuls, and full depth is 7175 meters that within 1978, get out in Sichuan.Ultra deep well is also the major criterion of an embodiment National Geology research height.
Because the deep-well section geological condition of ultra deep well is complicated, common mud can not meet its needs.
Summary of the invention
For solving the problem, the invention provides the mud crept into for ultra deep well in a kind of petroleum drilling and mining, adopting following technical scheme:
For the mud that ultra deep well creeps into, it is characterized in that, by weight, its formula is: wilkinite 15 ~ 30 parts; Potassium humate 1 ~ 2 part; Sulfonated-pheno-formoldehyde resin 2 ~ 5 parts; Sulfonation sodium polyacrylate 0.5 ~ 1.5 part; Unslaked lime 0.5 ~ 1 part; Valchovite 3 ~ 5 parts; Natvosol 0.2 ~ 0.5 part; SPAN-800.2 ~ 0.5 part; Sol charged positive 0.1 ~ 0.3 part; Iron titanate 0.1 ~ 3 part; 1000 parts, water.
Preferably, the described mud crept into for ultra deep well, its formula is: wilkinite 20 ~ 25 parts; Potassium humate 1 ~ 2 part; Sulfonated-pheno-formoldehyde resin 3 ~ 4 parts; Sulfonation sodium polyacrylate 0.5 ~ 1 part; Unslaked lime 0.5 ~ 0.8 part; Valchovite 3 ~ 4 parts; Natvosol 0.2 ~ 0.5 part; SPAN-800.2 ~ 0.5 part; Sol charged positive 0.1 ~ 0.3 part; Iron titanate 2 ~ 3 parts; 1000 parts, water.
Beneficial effect of the present invention is as follows:
The mud crept into for ultra deep well provided by the invention, not easily there is the accidents such as the borehole wall subsides, bit freezing, on anti-collapse basis, suitably rate of penetration be can also improve, special well, High angle, the horizontal wells such as ultra deep well, small hole, orientation, sidetracking are applicable to; Also be applicable to deep-well section geological condition complexity, high temperature, cream salt, air water soak serious well.
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
For the mud that ultra deep well creeps into, by weight, its formula is: wilkinite 15 parts; Potassium humate 2 parts; Sulfonated-pheno-formoldehyde resin 2 parts; Sulfonation sodium polyacrylate 1.5 parts; Unslaked lime 0.5 part; Valchovite 5 parts; Natvosol 0.2 part; SPAN-800.5 part; Sol charged positive 0.1 part; Iron titanate 3 parts; 1000 parts, water.
embodiment 2
For the mud that ultra deep well creeps into, by weight, its formula is: wilkinite 30 parts; Potassium humate 1 part; Sulfonated-pheno-formoldehyde resin 5 parts; Sulfonation sodium polyacrylate 0.5 part; Unslaked lime 1 part; Valchovite 3 parts; Natvosol 0.5 part; SPAN-800.2 part; Sol charged positive 0.3 part; Iron titanate 0.1 part; 1000 parts, water.
embodiment 3
For the mud that ultra deep well creeps into, by weight, its formula is: wilkinite 20 parts; Potassium humate 2 parts; Sulfonated-pheno-formoldehyde resin 3 parts; Sulfonation sodium polyacrylate 1 part; Unslaked lime 0.5 part; Valchovite 4 parts; Natvosol 0.2 part; SPAN-800.5 part; Sol charged positive 0.1 part; Iron titanate 3 parts; 1000 parts, water.
embodiment 4
For the mud that ultra deep well creeps into, by weight, its formula is: wilkinite 25 parts; Potassium humate 1 part; Sulfonated-pheno-formoldehyde resin 4 parts; Sulfonation sodium polyacrylate 0.5 part; Unslaked lime 0.8 part; Valchovite 3 parts; Natvosol 0.5 part; SPAN-800.2 part; Sol charged positive 0.3 part; Iron titanate 2 parts; 1000 parts, water.
Claims (2)
1. for the mud that ultra deep well creeps into, it is characterized in that, by weight, its formula is: wilkinite 15 ~ 30 parts; Potassium humate 1 ~ 2 part; Sulfonated-pheno-formoldehyde resin 2 ~ 5 parts; Sulfonation sodium polyacrylate 0.5 ~ 1.5 part; Unslaked lime 0.5 ~ 1 part; Valchovite 3 ~ 5 parts; Natvosol 0.2 ~ 0.5 part; SPAN-800.2 ~ 0.5 part; Sol charged positive 0.1 ~ 0.3 part; Iron titanate 0.1 ~ 3 part; 1000 parts, water.
2. the mud crept into for ultra deep well according to claim 1, is characterized in that, by weight, its formula is: wilkinite 20 ~ 25 parts; Potassium humate 1 ~ 2 part; Sulfonated-pheno-formoldehyde resin 3 ~ 4 parts; Sulfonation sodium polyacrylate 0.5 ~ 1 part; Unslaked lime 0.5 ~ 0.8 part; Valchovite 3 ~ 4 parts; Natvosol 0.2 ~ 0.5 part; SPAN-800.2 ~ 0.5 part; Sol charged positive 0.1 ~ 0.3 part; Iron titanate 2 ~ 3 parts; 1000 parts, water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410264479.XA CN105154039A (en) | 2014-06-16 | 2014-06-16 | Drilling mud for drilling ultra-deep well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410264479.XA CN105154039A (en) | 2014-06-16 | 2014-06-16 | Drilling mud for drilling ultra-deep well |
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| Publication Number | Publication Date |
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| CN105154039A true CN105154039A (en) | 2015-12-16 |
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| CN201410264479.XA Pending CN105154039A (en) | 2014-06-16 | 2014-06-16 | Drilling mud for drilling ultra-deep well |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101294069A (en) * | 2007-04-28 | 2008-10-29 | 绵阳市仁智实业发展有限责任公司 | Super-high density high temperature resistant drilling fluids |
| CN102002350A (en) * | 2010-11-11 | 2011-04-06 | 中国石油天然气集团公司 | Superhigh temperature water base drilling fluid |
| CN102766446A (en) * | 2012-07-25 | 2012-11-07 | 中国石油大学(北京) | High-temperature-resistant high-density formate polysulfonate drilling fluid and preparation method thereof |
| CN102965087A (en) * | 2012-11-07 | 2013-03-13 | 北京奥凯立科技发展股份有限公司 | High-temperature-resistant drilling fluid |
| CN103013472A (en) * | 2013-01-16 | 2013-04-03 | 西南石油大学 | Drilling fluid for ultra deep well |
| CN103045202A (en) * | 2011-10-13 | 2013-04-17 | 陶昕 | High-density polysulfonate water-based drilling fluid |
| CN103160259A (en) * | 2013-04-03 | 2013-06-19 | 中国石油大学(华东) | 255 DEG C superhigh temperature resistant water-based drilling fluid and construction process thereof |
-
2014
- 2014-06-16 CN CN201410264479.XA patent/CN105154039A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101294069A (en) * | 2007-04-28 | 2008-10-29 | 绵阳市仁智实业发展有限责任公司 | Super-high density high temperature resistant drilling fluids |
| CN102002350A (en) * | 2010-11-11 | 2011-04-06 | 中国石油天然气集团公司 | Superhigh temperature water base drilling fluid |
| CN103045202A (en) * | 2011-10-13 | 2013-04-17 | 陶昕 | High-density polysulfonate water-based drilling fluid |
| CN102766446A (en) * | 2012-07-25 | 2012-11-07 | 中国石油大学(北京) | High-temperature-resistant high-density formate polysulfonate drilling fluid and preparation method thereof |
| CN102965087A (en) * | 2012-11-07 | 2013-03-13 | 北京奥凯立科技发展股份有限公司 | High-temperature-resistant drilling fluid |
| CN103013472A (en) * | 2013-01-16 | 2013-04-03 | 西南石油大学 | Drilling fluid for ultra deep well |
| CN103160259A (en) * | 2013-04-03 | 2013-06-19 | 中国石油大学(华东) | 255 DEG C superhigh temperature resistant water-based drilling fluid and construction process thereof |
Non-Patent Citations (3)
| Title |
|---|
| 吕志强等: "轮东1井超深井钻井液技术", 《钻井液与完井液》 * |
| 程军等: "莫深1井钻井液技术", 《钻井液与完井液》 * |
| 金胜利等: "塔深1井钻井液技术", 《石油钻采工艺》 * |
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Application publication date: 20151216 |