CN1184296C - Anti-seizure thread sealing grease for oil casing - Google Patents
Anti-seizure thread sealing grease for oil casing Download PDFInfo
- Publication number
- CN1184296C CN1184296C CNB011087358A CN01108735A CN1184296C CN 1184296 C CN1184296 C CN 1184296C CN B011087358 A CNB011087358 A CN B011087358A CN 01108735 A CN01108735 A CN 01108735A CN 1184296 C CN1184296 C CN 1184296C
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- powder
- oil
- sealing grease
- thread
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Abstract
A petroleum casing pipe is a main consumption pipe material for exploiting petroleum, and because of large loss caused by thread gluing by screw threads every year, the present invention provides thread gluing resistance screw thread sealing grease for the petroleum casing pipe. The thread gluing resistance screw thread sealing grease for the petroleum casing pipe is composed of 00#compound lithium base grease which is 35 to 39 wt% of a sealing grease composition and 61 to 65 wt % of solid powder, wherein the 00# compound lithium base grease is prepared by a method that 78.44% of base oil N-100(or reducing 3B) is added to 12-hydroxyl stearic acid which is 7.55% of self weight, 1.55% of sebacic acid, 0.91% of orthoboric acid and 2.55% of lithium hydroxine monohydrate, the ingredients are saponified, and 9% of additive is auxiliary by a blending and homogeneity process. The powder is composed of 20 to 25 wt% of alpha-Al2O3, 20 to 25 % of squama graphite powder, 5 to 10% of wet method mica powder, 5 to 10% of polytetrafluoroethylene ultrafine powder, 3 to 5% of rare earth fluoride powder and 5 to 8% of squama-shaped golden light copper powder. The present invention has the advantages of good lubricating performance, high performance of rust and corrosion prevention, thread gluing resistance, etc. The present invention is suitable for drilling wells of the petroleum and natural gas.
Description
Technical field
The present invention relates to a kind of oil oil sleeve thread sealing grease.
Background technology
The petroleum casing pipe oil pipe is the main consumption tubing of oil production, global petroleum drilling and mining industry, and the sleeve oil pipe that consumes petroleum every year reaches more than millions of tons, and only China also will consume 1,000,000 tons every year.Connection between every in petroleum casing pipe oil pipe all is a tube end screw thread, and end thread all will be coated the oil oil sleeve thread sealing grease during connection, with stopping property and the strength of joint of guaranteeing that tubing and casing connects.The tubing and casing of China's manufacturer production often thread gluing occurs and can't use when end thread connects, annual because the direct economic loss that this screw thread thread gluing is caused all more than 10,000,000 yuan, has become the technical barrier of manufacturer.The reason that causes oil casing threaded thread gluing is many-sided, and develops anti-seizure thread sealing grease for oil casing, is the important channel that solves this technical barrier.
Summary of the invention
The object of the invention is: solve the thread gluing problem of the oil casing threaded connection of oil, for the user provides a kind of anti-stick button thread sealing grease that can effectively prevent the oil casing threaded thread gluing of oil.
The objective of the invention is to realize by the enforcement following technical proposals:
A kind of anti-seizure thread sealing grease for oil casing composition is characterized in that: be made up of 00# compositing lithio ester that accounts for sealing oil/fat composition weight 35～39% and 61～65% solid powder; Wherein: the 00# compositing lithio ester, then by the 12-hydroxyl stearic acid that accounts for own wt 7.55%, 1.55% sebacic acid, 0.91% boric acid, 2.55% lithium hydroxide, add 78.44% base oil N-100 (or subtracting 3B), make through blending, homogeneous technology through saponification and auxilliary 9% the additive of adding; And solid powder, then by the α-Al that accounts for sealing oil/fat composition weight 18～21%
2O
3, 20～25% crystalline graphite powder, 5～10% mica powder of wet process or lead powder, 5～10% superfine powder of polytetrafluoroethylene, 3～5% rare earth fluoride powder and 5～8% flakey golden light copper powder form.
Additional technical feature is: (1) is in preparation 00# compositing lithio ester, described through saponification and the auxilliary additive that adds this compositing lithio ester own wt 9%, then form by the dibutyl dithiocaarbamate antimony that accounts for this compositing lithio ester own wt 0.65%, 2.15% oil soluble barium mahogany sulfonate, 0.20% benzotriazole and 6% dinonyl naphthalene sulfonate barium.(2) in the solid powder of forming this thread seal oil/fat composition, crystalline graphite powder, rare earth fluoride powder, mica powder of wet process or lead powder, golden light copper powder are the above fine powder of 325 orders; Polytetrafluoroethylene powder then is the above ultrafine powders of 1000 orders.
Preparation technology of the present invention is by preparation 00# compositing lithio ester carrier, and this base fat that will be prepared into and above-mentioned solid powder by described mixed, stir, in colloidal mill, its mill spared then and forms.
Advantage of the present invention is:
(1) sticky thread resistance can be high, its sintering load P
DValue is more than 800kg; Shackle performance reaches the APIRP5C5 requirement on it.
(2) rust resistance and corrosion resistance performance height.
(3) have high leakproofness, reach the APIRP5C5 requirement.
(4) stable friction factor.
(5) has good lubricity-6.9 ℃～150 ℃ temperature ranges.
Embodiment
Anti-seizure thread sealing grease for oil casing is combined by 00# compositing lithio ester that accounts for weight 43% and 57% solid powder; Wherein: the 00# compositing lithio ester is by the 12-oxystearic acid that accounts for own wt 7.55%, 1.55% sebacic acid, 0.91% boric acid, 2.55% lithium hydroxide, add 78.44% base oil N-100 (or subtracting 3B), make through blending homogeneous technology through saponification and auxilliary 9% the additive of adding, additive therefor wherein is made up of the dibutyl dithiocaarbamate antimony that accounts for this compositing lithio ester own wt 0.65%, 2.15% oil soluble barium mahogany sulfonate, 0.20% benzotriazole and 6% dinonyl naphthalene sulfonate barium; Solid powder is by the α-Al that accounts for thread sealing grease weight 18%
2O
3, 23% the above crystalline graphite powder of 325 orders, the above superfine powder of polytetrafluoroethylene of 5%1000 orders, the above rare earth fluoride powder of 3% 325 orders, 3% the above flakey golden light of 325 orders copper powder, the above lead powder of 5% 325 orders is formed.
The preparation method of this anti-seizure thread sealing grease for oil casing is as follows:
Earlier with used ratio 12-oxystearic acid, sebacic acid, boric acid, the base oil N-100 of lithium hydroxide and 2/3rds consumptions (or subtracting 3B) mixing carrying out saponification, add the additive of described component and ratio and the base oil of remaining 1/3rd consumptions again and concoct, form the 00# compositing lithio ester through the discharging of clipper homogeneous afterwards, and then should base fat and the solid powder of described component and ratio, mix in the taper stirring tank, the even discharging of mill is packaged into product in colloidal mill at last.As follows through measuring its key technical indexes:
Relative friction coefficient is 1.0 (recording with the GB3142-82 standard method)
The Drawing cone in-degree (25 ℃, 150g): 0.1
Mm, 350-380
Dropping point ℃ is not less than 138
Corrosion (45# steel disc, 100 ℃, 24 hours) is qualified
Stencil oil-dividing (100 ℃, 24 hours) % (V/V) is not more than 10
Water leaching (65 ℃, 2 hours) % is not more than 5.0
Ease tolerance (65 ℃, 120 hours) mL is not more than 20
P
DValue＞800kg.
Claims (3)
1, a kind of anti-seizure thread sealing grease for oil casing composition is characterized in that: be made up of 00# compositing lithio ester that accounts for sealing oil/fat composition weight 35～39% and 61～65% solid powder; Wherein: the 00# compositing lithio ester, then by the 12-hydroxyl stearic acid that accounts for own wt 7.55%, 1.55% sebacic acid, 0.91% boric acid, 2.55% lithium hydroxide, add 78.44% base oil N-100, make through blending homogeneous technology through saponification and auxilliary 9% the additive of adding; And solid powder, then by the α-Al that accounts for this thread sealing grease composition weight 18～21%
2O
3, 20～25% crystalline graphite powder, 5～10% mica powder of wet process or lead powder, 5～10% superfine powder of polytetrafluoroethylene, 3～5% rare earth fluoride powder and 5～8% flakey golden light copper powder form.
2, according to the described anti-seizure thread sealing grease for oil casing composition of claim 1, it is characterized in that: in preparation 00# compositing lithio ester, described saponification and the auxilliary additive that adds this compositing lithio ester own wt 9% then are made up of the dibutyl dithiocaarbamate antimony that accounts for this compositing lithio ester own wt 0.65%, 2.15% oil soluble barium mahogany sulfonate, 0.20% benzotriazole and 6% dinonyl naphthalene sulfonate barium.
3, according to the described anti-seizure thread sealing grease for oil casing composition of claim 1, it is characterized in that: in the solid powder of forming this thread seal oil/fat composition, crystalline graphite powder, rare earth fluoride powder, mica powder of wet process or lead powder, golden light copper powder are the above fine powder of 325 orders, and polytetrafluoroethylene powder then is the above ultrafine powders of 1000 orders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011087358A CN1184296C (en) | 2001-08-15 | 2001-08-15 | Anti-seizure thread sealing grease for oil casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011087358A CN1184296C (en) | 2001-08-15 | 2001-08-15 | Anti-seizure thread sealing grease for oil casing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1407074A CN1407074A (en) | 2003-04-02 |
| CN1184296C true CN1184296C (en) | 2005-01-12 |
Family
ID=4657528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011087358A Expired - Fee Related CN1184296C (en) | 2001-08-15 | 2001-08-15 | Anti-seizure thread sealing grease for oil casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1184296C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101113382B (en) * | 2006-07-27 | 2011-06-01 | 张念 | Formula of wheel-rack solid lubrication additive for railway traffic |
| JP5481158B2 (en) * | 2009-10-27 | 2014-04-23 | Ｊｘ日鉱日石エネルギー株式会社 | Extreme pressure lubricant composition |
| CN105986286B (en) * | 2015-02-09 | 2018-03-16 | 李树宝 | Novel electrolytic bath anode small box fastener and its special high temperature resistant lubricating grease |
| CN110437924A (en) * | 2019-08-19 | 2019-11-12 | 新乡市恒星科技有限责任公司 | A kind of method that anhydrous saponification prepares complex lithium grease |
| CN112175700B (en) * | 2020-10-12 | 2022-08-02 | 娄睿 | Improved drilling tool thread sealing grease and preparation method thereof |
-
2001
- 2001-08-15 CN CNB011087358A patent/CN1184296C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1407074A (en) | 2003-04-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050112 Termination date: 20100815 |