CN104212417B - A kind of drilling fluid heavy weight additive and preparation method thereof - Google Patents
A kind of drilling fluid heavy weight additive and preparation method thereof Download PDFInfo
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- CN104212417B CN104212417B CN201410402645.8A CN201410402645A CN104212417B CN 104212417 B CN104212417 B CN 104212417B CN 201410402645 A CN201410402645 A CN 201410402645A CN 104212417 B CN104212417 B CN 104212417B
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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
Abstract
The present invention relates to a kind of drilling fluid heavy weight additive and preparation method thereof, belong to technical field of petroleum extraction.The heavy weight additive includes following component in parts by weight：60 80 parts of bauxite, 0.5 2 parts of celestine, 1 1.5 parts of monazite, 10 15 parts of silicon powder, 0.08 0.2 parts of cetanol ethylhexoate, 0.2 0.45 parts of polyoxyethylene (20) sorbitan mono-laurate, 0.5 2 parts of dispersant, attapulgite modified 0.5 1 parts, 20 30 parts of water.Preparation method of the present invention is simple, obtained heavy weight additive can improve the stability and structural behaviour of mud, with good suspension stability, it is to avoid the sedimentation problem of common heavy weight additive；Meanwhile, heavy weight additive solid product of the present invention may be directly applied to oil-base mud exacerbation, can adhere at high temperature 45 days, can only adhere to 7 days or so considerably beyond common heavy weight additive in the prior art, it is easy to popularization and application.
Description
Technical field
The invention belongs to technical field of petroleum extraction, and in particular to a kind of drilling fluid heavy weight additive and preparation method thereof.
Background technology
The oil reserve of China is not enough, the much big what outlet of Chinese petroleum import, and ratio is expanding year by year, it is believed that not
It is difficult to see improvement.With economic rapid growth, China is also riseing rapidly to the demand of oil.From 1996, China was just
As the third-largest oil consumption country after the U.S., Japan.
At present, many national oil fields in the whole world are all marched towards deep layer ultra deep exploration and development, and high density bores completion technique
As ensureing drilling operation safely and smoothly one of key technology.Need to add substantial amounts of solid phase exacerbation in high density drilling and completing fluids
Material is to improve density, and it is big to result in solid concentration in drilling and completing fluids, field application generally existing rheological characteristic and dehydration wave making machine
Unmanageable basic contradiction.
Drilling engineering is faced with the probing of western deep well ﹑ ultradeep wells, and east old filed is beaten plus close well ﹑ multilateral wells are improved and adopted
The problems such as exploitation of Shou Shuai ﹑ Low permeable oil and gas reservoirs and beach areas bore extended reach well, realize marine oil on the land, it is desirable to drilling fluid density
Higher, temperature resistance and anti-various pollution capacities are stronger（Saturated salt, gypsum, drilling cuttings comprehensive pollution）.Conventional heavy weight additive（Such as barite
Powder）Particle diameter generally between 10 μm -70 μm, often occur in application process the barite rate of settling height, drilling fluid density
Unequal phenomenon up and down.Meanwhile, blocking of the solid phase particles such as barite to stratum pore throat also causes certain to oil-gas Layer
Injury.Therefore the problem of the deficiencies in the prior art are current technical field of petroleum extraction urgent need to resolve how is overcome.
The content of the invention
The invention aims to solve the deficiencies in the prior art, there is provided a kind of drilling fluid heavy weight additive and its preparation side
Method.
The technical solution adopted by the present invention is as follows：
A kind of drilling fluid heavy weight additive, including following component in parts by weight：
60-80 parts of bauxite, 0.5-2 parts of celestine, 1-1.5 parts of monazite, 10-15 parts of silicon powder, cetanol ethyl
0.08-0.2 parts of capronate, sorbitan mono-laurate 0.2-0.45 parts of polyoxyethylene (20), 0.5-2 parts of dispersant, change
0.5-1 parts of attapulgite of property, 20-30 parts of water.
It is further preferred that described dispersant is metasilicate pentahydrate sodium.
It is further preferred that described drilling fluid heavy weight additive, it is characterised in that including in parts by weight as
Lower component：
68 parts of bauxite, 0.9 part of celestine, 1.3 parts of monazite, 12 parts of silicon powder, cetanol ethylhexoate 0.12
Part, 0.33 part of polyoxyethylene (20) sorbitan mono-laurate, 0.14 part of metasilicate pentahydrate sodium, attapulgite modified 0.78
Part, 24 parts of water.
It is further preferred that it by attapulgite with mass fraction is 11 that described attapulgite modified preparation method, which is,
~ 13% soaking with sodium hydroxide 1.5-2 hours, then soaked 1 ~ 3 hour for 11 ~ 12% hydrochloric acid solution with mass fraction, Ran Houyong
Deionized water is washed to neutrality, drying, you can obtain attapulgite modified.
The present invention also provides a kind of preparation method of drilling fluid heavy weight additive, comprises the following steps：
Step（1）, celestine and monazite are crushed to 100-200 mesh, celestite powder and monazite powder is obtained；
Step（2）, step is added in water is the water of total Water 3/4ths（1）Obtained celestite powder and phosphorus cerium lanthanum
Miberal powder, bauxite, silicon powder, attapulgite modified and dispersant, high-speed stirred obtain premix to well mixed；
Step（3）, cetanol ethylhexoate and polyoxyethylene (20) sorbitan mono-laurate are added remaining
In water, stirring is added to step to after being well mixed（2）In obtained premix, then it is placed in kneader and fully pinches
Close；
Step（4）, by step（3）Resulting kneading material dry, pulverize, and produce.
It is further preferred that step（2）The speed of described high-speed stirred is 600-800r/min.
It is further preferred that step（3）Described kneading temperature is 40-50 DEG C.
It is further preferred that step（4）Described drying means is vacuum drying.
Compared with prior art, its advantage is the present invention：（1）The heavy weight additive of the present invention can improve the stability of mud
And structural behaviour, with good suspension stability, it is to avoid the sedimentation problem of common heavy weight additive；（2）Heavy weight additive solid product
Oil-base mud exacerbation is may be directly applied to, can be adhered at high temperature 45 days, considerably beyond common heavy weight additive in the prior art only
It can adhere to 7 days or so；（3）Preparation method of the present invention is simple, it is easy to popularization and application.
Embodiment
With reference to embodiment, the present invention is described in further detail.
Embodiment 1
A kind of drilling fluid heavy weight additive, including following component in parts by weight：
60 parts of bauxite, 0.5 part of celestine, 1 part of monazite, 10 parts of silicon powder, 0.08 part of cetanol ethylhexoate,
0.2 part of polyoxyethylene (20) sorbitan mono-laurate, 0.5 part of metasilicate pentahydrate sodium, attapulgite modified 0.5 part, water
20 parts.
The soaking with sodium hydroxide that it is 11% with mass fraction by attapulgite that described attapulgite modified preparation method, which is,
1.5 hours, then soaked 1 hour for 11% hydrochloric acid solution with mass fraction, then it is washed with deionized to neutrality, dries, i.e.,
It can obtain attapulgite modified.
The preparation method of the present embodiment drilling fluid heavy weight additive, comprises the following steps：
Step（1）, celestine and monazite are crushed to 100-200 mesh, celestite powder and monazite powder is obtained；
Step（2）, step is added in water is the water of total Water 3/4ths（1）Obtained celestite powder and phosphorus cerium lanthanum
Miberal powder, bauxite, silicon powder, attapulgite modified and dispersant, with 600r/min speed high-speed stirred to well mixed,
Obtain premix；
Step（3）, cetanol ethylhexoate and polyoxyethylene (20) sorbitan mono-laurate are added remaining
In water, stirring is added to step to after being well mixed（2）In obtained premix, then it is placed in kneader and fully pinches
Close, it is 40 DEG C to mediate temperature；
Step（4）, by step（3）Resulting kneading drying material in vacuum, crushes, produces.
Embodiment 2
A kind of drilling fluid heavy weight additive, including following component in parts by weight：
80 parts of bauxite, 2 parts of celestine, 1.5 parts of monazite, 15 parts of silicon powder, 0.2 part of cetanol ethylhexoate,
0.45 part of polyoxyethylene (20) sorbitan mono-laurate, 2 parts of metasilicate pentahydrate sodium, attapulgite modified 1 part, water 30
Part.
The soaking with sodium hydroxide that it is 13% with mass fraction by attapulgite that described attapulgite modified preparation method, which is,
2 hours, then soaked 3 hours for 12% hydrochloric acid solution with mass fraction, then it is washed with deionized to neutrality, drying, you can
Obtain attapulgite modified.
The preparation method of the present embodiment drilling fluid heavy weight additive, comprises the following steps：
Step（1）, celestine and monazite are crushed to 100-200 mesh, celestite powder and monazite powder is obtained；
Step（2）, step is added in water is the water of total Water 3/4ths（1）Obtained celestite powder and phosphorus cerium lanthanum
Miberal powder, bauxite, silicon powder, attapulgite modified and dispersant, with 800r/min speed high-speed stirred to well mixed,
Obtain premix；
Step（3）, cetanol ethylhexoate and polyoxyethylene (20) sorbitan mono-laurate are added remaining
In water, stirring is added to step to after being well mixed（2）In obtained premix, then it is placed in kneader and fully pinches
Close, it is 50 DEG C to mediate temperature；
Step（4）, by step（3）Resulting kneading drying material in vacuum, crushes, produces.
Embodiment 3
A kind of drilling fluid heavy weight additive, including following component in parts by weight：
68 parts of bauxite, 0.9 part of celestine, 1.3 parts of monazite, 12 parts of silicon powder, cetanol ethylhexoate 0.12
Part, 0.33 part of polyoxyethylene (20) sorbitan mono-laurate, 0.14 part of metasilicate pentahydrate sodium, attapulgite modified 0.78
Part, 24 parts of water.
The soaking with sodium hydroxide that it is 12% with mass fraction by attapulgite that described attapulgite modified preparation method, which is,
1.8 hours, then soaked 2 hours for 11.5% hydrochloric acid solution with mass fraction, then it is washed with deionized to neutrality, drying,
It can obtain attapulgite modified.
The preparation method of the present embodiment drilling fluid heavy weight additive, comprises the following steps：
Step（1）, celestine and monazite are crushed to 100-200 mesh, celestite powder and monazite powder is obtained；
Step（2）, step is added in water is the water of total Water 3/4ths（1）Obtained celestite powder and phosphorus cerium lanthanum
Miberal powder, bauxite, silicon powder, attapulgite modified and dispersant, with 700r/min speed high-speed stirred to well mixed,
Obtain premix；
Step（3）, cetanol ethylhexoate and polyoxyethylene (20) sorbitan mono-laurate are added remaining
In water, stirring is added to step to after being well mixed（2）In obtained premix, then it is placed in kneader and fully pinches
Close, it is 45 DEG C to mediate temperature；
Step（4）, by step（3）Resulting kneading drying material in vacuum, crushes, produces.
Comparative example 1
The difference of comparative example 1 and embodiment 3 is：Celestine is not contained.
It is specific as follows：
A kind of drilling fluid heavy weight additive, including following component in parts by weight：
68 parts of bauxite, 1.3 parts of monazite, 12 parts of silicon powder, 0.12 part of cetanol ethylhexoate, polyoxyethylene
(20) 0.33 part of sorbitan mono-laurate, 0.14 part of metasilicate pentahydrate sodium, attapulgite modified 0.78 part, 24 parts of water.
The soaking with sodium hydroxide that it is 12% with mass fraction by attapulgite that described attapulgite modified preparation method, which is,
1.8 hours, then soaked 2 hours for 11.5% hydrochloric acid solution with mass fraction, then it is washed with deionized to neutrality, drying,
It can obtain attapulgite modified.
The preparation method of the present embodiment drilling fluid heavy weight additive, comprises the following steps：
Step（1）, monazite is crushed to 100-200 mesh, monazite powder is obtained；
Step（2）, step is added in water is the water of total Water 3/4ths（1）Obtained monazite powder, aluminium alum
Soil, silicon powder, attapulgite modified and dispersant, with 700r/min speed high-speed stirred to well mixed, are premixed
Material；
Step（3）, cetanol ethylhexoate and polyoxyethylene (20) sorbitan mono-laurate are added remaining
In water, stirring is added to step to after being well mixed（2）In obtained premix, then it is placed in kneader and fully pinches
Close, it is 45 DEG C to mediate temperature；
Step（4）, by step（3）Resulting kneading drying material in vacuum, crushes, produces.
Comparative example 2
The difference of comparative example 2 and embodiment 3 is：Cetanol ethylhexoate is not contained.
It is specific as follows：
A kind of drilling fluid heavy weight additive, including following component in parts by weight：
68 parts of bauxite, 0.9 part of celestine, 1.3 parts of monazite, 12 parts of silicon powder, polyoxyethylene (20) Sorbitan
0.33 part of alcohol monolaurate, 0.14 part of metasilicate pentahydrate sodium, attapulgite modified 0.78 part, 24 parts of water.
The soaking with sodium hydroxide that it is 12% with mass fraction by attapulgite that described attapulgite modified preparation method, which is,
1.8 hours, then soaked 2 hours for 11.5% hydrochloric acid solution with mass fraction, then it is washed with deionized to neutrality, drying,
It can obtain attapulgite modified.
The preparation method of the present embodiment drilling fluid heavy weight additive, comprises the following steps：
Step（1）, celestine and monazite are crushed to 100-200 mesh, celestite powder and monazite powder is obtained；
Step（2）, step is added in water is the water of total Water 3/4ths（1）Obtained celestite powder and phosphorus cerium lanthanum
Miberal powder, bauxite, silicon powder, attapulgite modified and dispersant, with 700r/min speed high-speed stirred to well mixed,
Obtain premix；
Step（3）, polyoxyethylene (20) sorbitan mono-laurate is added in remaining water, stirred to well mixed
Afterwards, it is added to step（2）In obtained premix, then it is placed in kneader and fully mediates, it is 45 DEG C to mediate temperature；
Step（4）, by step（3）Resulting kneading drying material in vacuum, crushes, produces.
Comparative example 3
The difference of comparative example 3 and embodiment 3 is：Do not contain attapulgite modified.
It is specific as follows：
A kind of drilling fluid heavy weight additive, including following component in parts by weight：
68 parts of bauxite, 0.9 part of celestine, 1.3 parts of monazite, 12 parts of silicon powder, cetanol ethylhexoate 0.12
Part, 0.33 part of polyoxyethylene (20) sorbitan mono-laurate, 0.14 part of metasilicate pentahydrate sodium, 24 parts of water.
The preparation method of the present embodiment drilling fluid heavy weight additive, comprises the following steps：
Step（1）, celestine and monazite are crushed to 100-200 mesh, celestite powder and monazite powder is obtained；
Step（2）, step is added in water is the water of total Water 3/4ths（1）Obtained celestite powder and phosphorus cerium lanthanum
Miberal powder, bauxite, silicon powder and dispersant, with 700r/min speed high-speed stirred to well mixed, obtain premix；
Step（3）, cetanol ethylhexoate and polyoxyethylene (20) sorbitan mono-laurate are added remaining
In water, stirring is added to step to after being well mixed（2）In obtained premix, then it is placed in kneader and fully pinches
Close, it is 45 DEG C to mediate temperature；
Step（4）, by step（3）Resulting kneading drying material in vacuum, crushes, produces.
Performance to product embodiments 1-3 of the present invention and comparative example 1-3 products detects that testing result is as shown in table 1.
Table 1
As can be seen from the table, embodiment 1-3 water shutoff agent is respectively provided with good performance, and rheological characteristic is preferable, comparative example 1,
Effect in comparative example 2 and comparative example 3 is inferior to embodiment；Embodiment 3 is most highly preferred embodiment of the invention.
Claims (6)
1. a kind of drilling fluid heavy weight additive, it is characterised in that including following component in parts by weight：Bauxite 60-80
Part, 0.5-2 parts of celestine, 1-1.5 parts of monazite, 10-15 parts of silicon powder, cetanol ethylhexoate 0.08-
0.2 part, sorbitan mono-laurate 0.2-0.45 parts of polyoxyethylene (20), 0.5-2 parts of metasilicate pentahydrate sodium,
Attapulgite modified 0.5-1 parts, 20-30 parts of water.
2. the drilling fluid heavy weight additive according to claim 1, it is characterised in that described attapulgite modified preparation
Soaking with sodium hydroxide 1.5-2 hours that it is 11 ~ 13% with mass fraction by attapulgite that method, which is, then with mass fraction be 11 ~
12% hydrochloric acid solution soaks 1 ~ 3 hour, is then washed with deionized to neutrality, drying, you can obtain modified attapulgite
Soil.
3. the preparation method of the drilling fluid heavy weight additive described in claim 1, it is characterised in that comprise the following steps：
Step（1）, celestine and monazite are crushed to 100-200 mesh, celestite powder and monazite powder is obtained；
Step（2）, step is added in water is the water of total Water 3/4ths（1）Obtained celestite powder and monazite
Powder, bauxite, silicon powder, attapulgite modified and metasilicate pentahydrate sodium, high-speed stirred obtain premix to well mixed；
Step（3）, cetanol ethylhexoate and polyoxyethylene (20) sorbitan mono-laurate are added into remaining water
In, stirring is added to step to after being well mixed（2）In obtained premix, then it is placed in kneader and fully mediates；
Step（4）, by step（3）Resulting kneading material dry, pulverize, and produce.
4. the preparation method of the drilling fluid heavy weight additive according to claim 3, it is characterised in that step（2）Described height
The speed of speed stirring is 600-800r/min.
5. the preparation method of drilling fluid heavy weight additive according to claim 3, it is characterised in that step（3）Described pinches
It is 40-50 DEG C to close temperature.
6. the preparation method of drilling fluid heavy weight additive according to claim 3, it is characterised in that step（4）Described drying
Method is vacuum drying.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102119204A (en) * | 2008-08-13 | 2011-07-06 | M-I钻井液英国有限公司 | Reduced abrasiveness with micronized weighting material |
| CN102197107A (en) * | 2008-08-22 | 2011-09-21 | M-I施沃克诺尔热股份有限公司 | High performance water based fluids |
| CN103194186A (en) * | 2013-04-12 | 2013-07-10 | 中国石油大学(北京) | High density ultramicro formation testing working solution and preparation method thereof |
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| US7255169B2 (en) * | 2004-09-09 | 2007-08-14 | Halliburton Energy Services, Inc. | Methods of creating high porosity propped fractures |
| GB2490166B (en) * | 2011-04-21 | 2015-11-25 | Fumi Minerals Ltd | Weighting agent for use in subterranean wells |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102119204A (en) * | 2008-08-13 | 2011-07-06 | M-I钻井液英国有限公司 | Reduced abrasiveness with micronized weighting material |
| CN102197107A (en) * | 2008-08-22 | 2011-09-21 | M-I施沃克诺尔热股份有限公司 | High performance water based fluids |
| CN103194186A (en) * | 2013-04-12 | 2013-07-10 | 中国石油大学(北京) | High density ultramicro formation testing working solution and preparation method thereof |
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Effective date of registration: 20200514 Address after: 300450 Tianjin Binhai New Area Haibin Street Union Industrial Park Patentee after: Tianjin Dagang Oilfield Haicheng mud Technical Service Co., Ltd Address before: 251900 1-301, building 22, left bank community, west of Dixin 7th Road, south of Dizhou street, Wudi County, Binzhou City, Shandong Province Patentee before: WUDI HUAXIN PETROLEUM TECHNOLOGY SERVICE Co.,Ltd. |