CN105130292A - High-temperature-resistant high-strength low-density cement slurry system - Google Patents
High-temperature-resistant high-strength low-density cement slurry system Download PDFInfo
- Publication number
- CN105130292A CN105130292A CN201510437582.4A CN201510437582A CN105130292A CN 105130292 A CN105130292 A CN 105130292A CN 201510437582 A CN201510437582 A CN 201510437582A CN 105130292 A CN105130292 A CN 105130292A
- Authority
- CN
- China
- Prior art keywords
- density
- resisting
- temperature
- parts
- strength
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention relates to a high-temperature-resistant high-strength low-density cement slurry system, which is composed of following components, by weight, 100 parts of oil well cement, 10-35 parts of high-strength hollow glass beads, 1-4 parts of an high-temperature-resistant salt-resistant fluid loss agent A, 1-4 parts of an high-temperature-resistant salt-resistant fluid loss agent B, 1-2 parts of an early strength agent A, 1-2 parts of an early strength agent B, 8-15 parts of micro-silicon, 1-4 parts of an expansion agent, 0-2 parts of a retarder, and 90-150 parts of water. The invention achieves the high-temperature-resistant high-strength low-density cement slurry system.
Description
Technical field
The present invention relates to a kind of cementing technique field, particularly relate to a kind of high temperature resistance high-strength low-density mortar architecture.
Background technology
It is changeable that current China domestic Remaining Oil And Gas resource 40% is distributed in complex geologic conditions, and the fracture-type reservoir that show of oil and gas (SO&G) is active, this block cementing operation faces long cementing interval and easily misses, grout returns up to less than design requirements, therefore well cementation must use low density and Ultra-Low Density Cement Slurries, changes sky fluid column pressure and prevents to reduce or reduce cementing operation leakage.Grout light-weight additive conventional both at home and abroad at present mainly contains domestic common drift pearl, U.S. 3M hollow glass micropearl and flyash etc.
Wherein, domestic common drift pearl ultimate compression strength is low, and density is higher, generally cement slurry density can only be down to 1.40g/cm
3and be subject to stirring velocity and pressure influence comparatively large, as more than pressure-bearing 8MPa, percentage of damage is comparatively large, and when grout is to shaft bottom, its actual density is far longer than design density, therefore reduces cement slurry density limited in one's ability; U.S. 3M microballon bearing capacity is higher, but expensive, and delivery cycle is long, limits it and applies.Flyash density is higher, generally cement slurry density can only be reduced to 1.60g/cm
3left and right, cannot meet construction requirement.
Domestic disclosed patent documentation 200710120029.3 " low-temperature low-density well cementing cement mortar " describes a kind of formula of low-temperature low-density well cementing cement mortar simultaneously, does not evaluate high temperature.
201210029070.0 " a kind of high temperature resistance low-density high-strength cement pastes " describe the domestic drift pearl of a kind of use and make low-density method.But it use stablizer, also drift pearl bearing capacity is not evaluated.
What 201410492102.x " a kind of new type high temperature low weight cement slurry " introduced is a kind of take flyash as the low-density mortar architecture of lightening material, and cement slurry density is 1.4-1.6g/cm
3, above-mentioned document all still fails to solve the problems such as mortar architecture density is high, intensity is low and Applicable temperature scope is little.
Summary of the invention
The object of the invention is to solve the problems such as the above-mentioned mortar architecture density that existing high-temperature low-density cement slurry system exists in fracture-type reservoir well cementation uses is high, intensity is low and Applicable temperature scope is little.
To achieve these goals, technical scheme provided by the invention is a kind of high temperature resistance high-strength low-density mortar architecture, is made up of following component and parts by weight oil well cement 100 parts, high strength hollow glass micropearl 10-35 part, high-temperature resisting and salt-resisting water retaining A1-4 part, high-temperature resisting and salt-resisting water retaining B1-4 part, hardening accelerator A1-2 part, hardening accelerator B1-2 part, micro-silicon 8-15 part, swelling agent 1-4 part, retardant 0-2 part and water 90-150 part.
Oil well cement is oil well G class g cement.
The ultimate compression strength of high strength hollow glass micropearl is greater than 6000psi, and its density is 0.2-0.6g/cm
3.
High-temperature resisting and salt-resisting water retaining A is G33S coventional type, and high-temperature resisting and salt-resisting water retaining B is that G33S low density is special, wherein makes grout difference of densities be 0.01g/cm by the ratio of adaptive adjustment high-temperature resisting and salt-resisting water retaining A and high-temperature resisting and salt-resisting water retaining B
3, fluid loss is less than 50ml, and free liquid is 0.
Hardening accelerator A is G204, and hardening accelerator B is TFA-18, and by the ratio of adaptation adjustment hardening accelerator A and hardening accelerator B, the grout adjustment thickening time is 90-400min.
Swelling agent is lattice dilatation type.
Cement slurry density is 1.20g/cm
3~ 1.55g/cm
3; Within 24 hours, intensity reaches 14Mpa; Applicable temperature scope is 70 DEG C-150 DEG C; Under pressure-bearing 50MPa pressure, cement slurry density increases 0.01g/cm
3.
The present invention is directed to fracture-type reservoir well low pressure and easy leaking and lose a difficult problem, and common drift pearl bearing capacity is low, 3M microballon cost is high, flyash reduces cement slurry density defect limited in one's ability, choosing domestic hollow glass micropearl is lightening material, coordinate other packing materials and admixture, define the oil well G class g cement of any producer of a set of adaptation, density is at 1.2-1.55g/cm
3mortar architecture adjustable in scope, this system does not need to add any stablizer and toughener, by regulating water retaining A and water retaining B ratio, and grout stability problem under solution High Temperature High Pressure, thickening time is greater than within the scope of 90min adjustable, and other over-all propertieies meet cementing requirements.
The invention has the beneficial effects as follows:
(1) grout of the present invention adopts domestic high strength hollow glass micropearl as lightening material, and density can be down to 1.20g/cm
3~ 1.55g/cm
3;
(2) grout of the present invention adapts to the oil well G class g cement of each manufacturer production, without the need to adding stablizer and toughener, grout slurry just can be made to stablize, difference of densities 0.01g/cm by adjustment high-temperature resisting and salt-resisting water retaining A and water retaining B ratio
3, fluid loss is less than 50ml, and free liquid is 0;
(3) strength of cement grout development of the present invention is fast, and within 24 hours, intensity reaches more than 14MPa;
(4) grout of the present invention is by adjusting hardening accelerator A and hardening accelerator B ratio, thickening time minimum 90min, adjustable in thickening time 90-400min, greatly can shorten curing time;
(5) the bright described grout Applicable temperature scope of this law is 70 DEG C-150 DEG C, meets deep well cementing needs;
(6) grout bearing capacity of the present invention is large, and under 50MPa pressure, cement slurry density increases 0.01g/cm
3.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
embodiment 1density is 1.20g/cm
3high-strength low-density mortar architecture
G level oil well cement is 100 parts of weight, the domestic hollow glass micropearl of 25 parts, micro-silicon of 12 parts, the hardening accelerator AG204 of 2 parts, the hardening accelerator BTFA-18 of 2 parts, the water retaining AG33S(coventional type of 3 parts), the water retaining BG33S(low density of 1 part is special), the swelling agent G401 of 2 parts, 70 DEG C do not add retardant GH-9, the retardant GH-9 of 100 DEG C 0.3 part, the retardant GH-9 of 150 DEG C 1.2 parts, liquid-solid ratio is 0.67, and wherein water retaining A and B ratio, hardening accelerator A and B ratio regulate depending on grout slurry situation and cementing requirements thickening time.
By GB/T19139 standard system for grout, and carry out high temperature sedimentary stability energy, high pressure crushing test, multiviscosisty and compressive strength test, dendrometry water and free liquid test, test-results in table 1.
table 11.20g/cm
3
grout over-all properties
embodiment 2density is 1.35g/cm
3high-strength low-density mortar architecture
G level oil well cement is 100 parts of weight, the domestic hollow glass micropearl of 25 parts, micro-silicon of 12 parts, the hardening accelerator AG204 of 2 parts, the hardening accelerator BTFA-18 of 2 parts, the water retaining AG33S(coventional type of 3 parts), the water retaining (low density is special) of 1 part, 2 parts swelling agent G401,70 DEG C do not add retardant GH-9, the retardant GH-9 of 100 DEG C 0.5 part, the retardant GH-9 of 150 DEG C 1.5 parts, liquid-solid ratio is 0.67, and wherein water retaining A and B ratio, hardening accelerator A and B ratio regulate depending on grout slurry situation and cementing requirements thickening time.
By GB/T19139 standard system for grout, and carry out high temperature sedimentary stability energy, high pressure crushing test, multiviscosisty and compressive strength test, dendrometry water and free liquid test, test-results in table 2.
table 21.35g/cm
3
grout over-all properties
Claims (7)
1. a high temperature resistance high-strength low-density mortar architecture, is characterized in that: be made up of following component and parts by weight oil well cement 100 parts, high strength hollow glass micropearl 10-35 part, high-temperature resisting and salt-resisting water retaining A1-4 part, high-temperature resisting and salt-resisting water retaining B1-4 part, hardening accelerator A1-2 part, hardening accelerator B1-2 part, micro-silicon 8-15 part, swelling agent 1-4 part, retardant 0-2 part and water 90-150 part.
2. a kind of high temperature resistance high-strength low-density mortar architecture according to claim 1, is characterized in that: oil well cement is oil well G class g cement.
3. a kind of high temperature resistance high-strength low-density mortar architecture according to claim 1, it is characterized in that: the ultimate compression strength of high strength hollow glass micropearl is greater than 6000psi, its density is 0.2-0.6g/cm
3.
4. a kind of high temperature resistance high-strength low-density mortar architecture according to claim 1, it is characterized in that: high-temperature resisting and salt-resisting water retaining A is G33S coventional type, high-temperature resisting and salt-resisting water retaining B is that G33S low density is special, wherein makes grout difference of densities be 0.01g/cm by the ratio of adaptive adjustment high-temperature resisting and salt-resisting water retaining A and high-temperature resisting and salt-resisting water retaining B
3, fluid loss is less than 50ml, and free liquid is 0.
5. a kind of high temperature resistance high-strength low-density mortar architecture according to claim 1, it is characterized in that: hardening accelerator A is G204, hardening accelerator B is TFA-18, and by the ratio of adaptation adjustment hardening accelerator A and hardening accelerator B, the grout adjustment thickening time is 90-400min.
6. a kind of high temperature resistance high-strength low-density mortar architecture according to claim 1, is characterized in that: swelling agent is lattice dilatation type.
7. a kind of high temperature resistance high-strength low-density mortar architecture according to the arbitrary claim of claim 1 to 6, is characterized in that: cement slurry density is 1.20g/cm
3~ 1.55g/cm
3; Within 24 hours, intensity reaches 14Mpa; Applicable temperature scope is 70 DEG C-150 DEG C; Under pressure-bearing 50MPa pressure, cement slurry density increases 0.01g/cm
3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510437582.4A CN105130292A (en) | 2015-07-24 | 2015-07-24 | High-temperature-resistant high-strength low-density cement slurry system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510437582.4A CN105130292A (en) | 2015-07-24 | 2015-07-24 | High-temperature-resistant high-strength low-density cement slurry system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105130292A true CN105130292A (en) | 2015-12-09 |
Family
ID=54715941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510437582.4A Pending CN105130292A (en) | 2015-07-24 | 2015-07-24 | High-temperature-resistant high-strength low-density cement slurry system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105130292A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106630806A (en) * | 2017-01-06 | 2017-05-10 | 中国海洋石油总公司 | Cement mixed component and application thereof |
| CN106634901A (en) * | 2016-10-25 | 2017-05-10 | 中国石油集团川庆钻探工程有限公司长庆固井公司 | Vitrified micro-bubble cement paste system and preparation method and application thereof |
| CN108395881A (en) * | 2017-05-31 | 2018-08-14 | 宁夏亿昀特种工程材料有限公司 | Oil-well cement mitigation extra material |
| CN112390659A (en) * | 2019-08-15 | 2021-02-23 | 中国石油化工股份有限公司 | Cement paste system |
| CN114075925A (en) * | 2021-03-01 | 2022-02-22 | 李泓胜 | Geological petroleum formula and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4252193A (en) * | 1979-06-11 | 1981-02-24 | Standard Oil Company (Indiana) | Low density cement slurry and its use |
| CN102585789A (en) * | 2012-02-10 | 2012-07-18 | 成都欧美科石油科技股份有限公司 | High temperature resistance low-density high-strength cement paste |
| CN102703044A (en) * | 2012-05-23 | 2012-10-03 | 成都欧美科石油科技股份有限公司 | Novel cement slurry plugging fluid |
| CN102732237A (en) * | 2012-05-23 | 2012-10-17 | 成都欧美科石油科技股份有限公司 | Dry wellbore well cementation cement slurry |
| CN104263332A (en) * | 2014-10-08 | 2015-01-07 | 中钢集团马鞍山矿山研究院有限公司 | High-temperature-resistant high-strength low-density well-cementing cement slurry |
-
2015
- 2015-07-24 CN CN201510437582.4A patent/CN105130292A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4252193A (en) * | 1979-06-11 | 1981-02-24 | Standard Oil Company (Indiana) | Low density cement slurry and its use |
| CN102585789A (en) * | 2012-02-10 | 2012-07-18 | 成都欧美科石油科技股份有限公司 | High temperature resistance low-density high-strength cement paste |
| CN102703044A (en) * | 2012-05-23 | 2012-10-03 | 成都欧美科石油科技股份有限公司 | Novel cement slurry plugging fluid |
| CN102732237A (en) * | 2012-05-23 | 2012-10-17 | 成都欧美科石油科技股份有限公司 | Dry wellbore well cementation cement slurry |
| CN104263332A (en) * | 2014-10-08 | 2015-01-07 | 中钢集团马鞍山矿山研究院有限公司 | High-temperature-resistant high-strength low-density well-cementing cement slurry |
Non-Patent Citations (2)
| Title |
|---|
| 何生厚等: "《普光高酸性气田开发》", 30 June 2010 * |
| 刘宝和: "《中国石油勘探开发百科全书 工程卷》", 30 November 2008 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106634901A (en) * | 2016-10-25 | 2017-05-10 | 中国石油集团川庆钻探工程有限公司长庆固井公司 | Vitrified micro-bubble cement paste system and preparation method and application thereof |
| CN106630806A (en) * | 2017-01-06 | 2017-05-10 | 中国海洋石油总公司 | Cement mixed component and application thereof |
| CN106630806B (en) * | 2017-01-06 | 2019-04-26 | 中国海洋石油集团有限公司 | A kind of cement mixing component and its application |
| CN108395881A (en) * | 2017-05-31 | 2018-08-14 | 宁夏亿昀特种工程材料有限公司 | Oil-well cement mitigation extra material |
| CN112390659A (en) * | 2019-08-15 | 2021-02-23 | 中国石油化工股份有限公司 | Cement paste system |
| CN114075925A (en) * | 2021-03-01 | 2022-02-22 | 李泓胜 | Geological petroleum formula and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105130292A (en) | High-temperature-resistant high-strength low-density cement slurry system | |
| CN103361041B (en) | A kind of preparation method of high-density gas channeling prevention well cementing grout | |
| CN101134892B (en) | Deepwater well cementing mortar architecture | |
| RU2015128270A (en) | NEW STRENGTHENED ELASTOMER SYSTEMS FOR USE IN CEMENT, BUFFER AND DRILLING SOLUTIONS | |
| CN105462571A (en) | Low-temperature cementing slurry system and composition thereof | |
| NZ630005A (en) | Settable compositions comprising unexpanded perlite and methods of cementing in subterranean formations | |
| CN104099071A (en) | Horizontal well-cementation expandable cement mortar and preparation method thereof | |
| CN102504775A (en) | Large temperature difference cement slurry for cementing of deep well long isolation section and preparation method thereof | |
| CN107418536A (en) | A kind of high temperature resistance, anti-gas channeling, high density cementing slurry and preparation method thereof | |
| CN102191027A (en) | High-temperature-resistant dispersed fluid loss agent for oil well cement and preparation method thereof | |
| CN105061661A (en) | Medium-high temperature delayed coagulant used for oil well cement and preparation method thereof | |
| CN105062442A (en) | Thickened oil thermal recovery channeling sealing agent, channeling sealing agent thick liquid, preparation method of thick liquid and thickened oil thermal recovery profile control channeling sealing method | |
| CN102086387B (en) | Filtrate reducer of cement slurry and application in cementing | |
| CN105505350A (en) | Elastic and flexible oil well cement slurry system based on temperature sensitive shape memory polymer and preparation method thereof | |
| CN105062441A (en) | Low-density micro-expansion early-strength channeling-preventive oil well cement slurry and preparation method thereof | |
| CN101962530B (en) | Oil and gas field region well-prospecting and well-cementing cement secondary slurry process | |
| CN102660240B (en) | Multi-temperature-section MTC (mud to cement) well cementing liquid and preparation method thereof | |
| CN106467736A (en) | A kind of fracturing fluid for shale pressure break and preparation method thereof | |
| CN102746835A (en) | Carbonatite oil well density selectivity water shutoff agent and preparation process thereof | |
| CN107540260B (en) | Low-temperature cement early strength agent for well cementation and cement containing low-temperature cement early strength agent | |
| CN103936324B (en) | A kind of concrete early strength agent | |
| CN102181008B (en) | Water absorption resin for well repair and leaking stoppage and synthesis method thereof | |
| CN103627375A (en) | Slag MTC (Mud-To-Cement) cementing fluid and preparation method thereof | |
| WO2011064632A3 (en) | Preparation of setting slurries | |
| CN104178098A (en) | High-strength gel profile control and plugging agent as well as preparation method and application method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151209 |