CN105860944A - Bentonite slurry microbubble base liquid system for water-sensitive formation mist drilling - Google Patents
Bentonite slurry microbubble base liquid system for water-sensitive formation mist drilling Download PDFInfo
- Publication number
- CN105860944A CN105860944A CN201610241871.1A CN201610241871A CN105860944A CN 105860944 A CN105860944 A CN 105860944A CN 201610241871 A CN201610241871 A CN 201610241871A CN 105860944 A CN105860944 A CN 105860944A
- Authority
- CN
- China
- Prior art keywords
- parts
- water
- slope soil
- base fluid
- microvesicle
- 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
Classifications
-
- 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
- C09K8/38—Gaseous or foamed well-drilling compositions
Abstract
The invention discloses a bentonite slurry microbubble base liquid system for water-sensitive formation mist drilling. The bentonite slurry microbubble base liquid system is prepared from, by weight, 100 parts of bentonite base slurry, 0.5-0.7 part of a foaming agent, 0.5-1 part of a filtrate reducer and 0.3-0.5 part of a stabilizing agent. According to the bentonite slurry microbubble base liquid system, the inhibition performance of the base liquid system can be enhanced, the borehole wall stabilizing requirement of water-sensitive formation mist drilling is met, and the capacity that gas drilling copes with a water-sensitive water yielding formation is improved.
Description
Technical field
The present invention relates to a kind of for water-sensitive formation air-mist drilling slope soil paste microvesicle base fluid system, belong to drilling well (probing) work
Journey field, is mainly used in oil and gas well drilling.
Background technology
In recent years, air drilling in Chongqing of Sichuan, Xinjiang, the ground such as Qinghai have been used in a large scale, DWM on year-on-year basis, machinery
Drilling speed improves more than 4～14 times, reduces mud wastage more than 140,000 side, for accelerating oil-gas exploration and development paces, solving spudder
Journey complexity provides strong technical support.But water-sensitive formation goes out water problems is still one of air drilling bottleneck, currently empty
After pneumatic drill well drilling strata water outlet, " KCl " is generally used to make the atomization base fluid system implementation air-mist drilling of inhibitor, but for water
Quick stratum such as loess formation, mud stone etc., conventional atomization base fluid system can not meet wellbore stability needs, constrain gas drilling and promote
Application.
Atomization base fluid is to inject into well during air-mist drilling to circulate to improve the liquid phase part taking water sand-transport effeciency, air-mist drilling
Time, it is actually needed according to drilling well, on the one hand injects base fluid by atomizer pump with 1 ~ 10L/s, on the other hand gas injection equipment injects gas
Body, in pit shaft, formation mist flow realizes taking sand and takes water purpose.Atomization base fluid is mainly aqueous based systems at present, is considering base
The performance indications such as the frothing percentage of liquid system, half-life, heat and salinity tolerance, inhibition, preferably go out the base fluid body as air-mist drilling
System.Application publication number is 102079973A, publication date be the Chinese patent literature on June 1st, 2011 disclose a kind of for
The stable foam system formulation of air-mist drilling, this system KCl improves the rejection of system as inhibitor.But existing base fluid
System can not maintain water-sensitive formation air-mist drilling wellbore stability, borehole well instability easily occurs, and then causes the down-holes such as bit freezing complicated.
Summary of the invention
It is an object of the invention to the problems referred to above overcoming prior art to exist, it is provided that a kind of for water-sensitive formation atomization brill
Well slope soil paste microvesicle base fluid system.The present invention can strengthen base fluid system rejection, meets the water-sensitive formation air-mist drilling borehole wall steady
Fixed needs, improve gas drilling reply water-sensitive water-yielding stratum ability.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of for water-sensitive formation air-mist drilling slope soil paste microvesicle base fluid system, it is characterised in that in parts by weight by following group
Part is constituted:
Slope soil matrix starches 100 parts,
Foaming agent 0.5 0.7 parts,
Fluid loss additive 0.5 1 parts,
Stabilizer 0.3 0.5 parts.
Described slope soil matrix slurry is made up of following component in parts by weight: 0.2 0.5 parts of soda ash, 0.1 0.4 parts of caustic soda,
58 parts of bentonites, the water of 100 parts.
Described it is made up of following component in parts by weight for water-sensitive formation air-mist drilling slope soil paste microvesicle base fluid system:
100 parts of slope soil matrix slurries, 0.7 part of foaming agent, 0.5 portion of fluid loss additive, 0.4 part of stabilizer.
Described slope soil matrix slurry is made up of following component in parts by weight: 0.3 part of soda ash, 0.3 part of caustic soda, 6 parts of bentonites,
The water of 100 parts.
Described foaming agent refers to the foaming agent that commercially available model is COA-30.
Described fluid loss additive refers to polyanion cellulose PAC-LV.
Described stabilizer refers to polyacrylic acid potassium KPAM.
Employing it is an advantage of the current invention that:
(1), present invention achieves water-sensitive formation atomization safety drilling demand slope soil paste microvesicle base fluid system, improve gas bore
Well reply water-sensitive bad ground ability.
(2), base fluid system of the present invention using slope soil paste as system base starch, utilize slope soil paste retaining wall performance reach water-sensitive ground
Layer forms cement protective layer, meets wellbore stability needs.
(3), base fluid system of the present invention adds fluid loss additive, reduce base fluid filter loss, reduce hydrone and enter in stratum
Probability, promote the rejection ability of base fluid system, for strengthening the stability of microvesicle, add stabilizer KPAM, meet and remain stable
Take rock effect.
(4), slope soil matrix of the present invention slurry in add foaming agent, formed microvesicle state, improve base fluid system sand of taking take water energy
Power.
To sum up, invention enhances the inhibition of atomization base fluid system, for maintaining the water-sensitive formation air-mist drilling borehole wall steady
Surely provide solution, it is adaptable to the water-sensitive water-yielding stratum air-mist drilling use such as loess formation, mud shale, solve gas drilling at water
The difficult problem on quick stratum " water breakthrough just turns mud ", lift gas drilling well reply water-sensitive bad ground ability, widen gas drilling application
Scope, has wide application prospect.
Detailed description of the invention
Embodiment 1
A kind of for water-sensitive formation air-mist drilling slope soil paste microvesicle base fluid system, it is made up of following component in parts by weight:
Slope soil matrix starches 100 parts,
Foaming agent 0.5 0.7 parts,
Fluid loss additive 0.5 1 parts,
Stabilizer 0.3 0.5 parts.
In the present embodiment, described slope soil matrix slurry is made up of following component in parts by weight: 0.2 0.5 parts of soda ash, and 0.1
0.4 part of caustic soda, 58 parts of bentonites, the water of 100 parts.
In this programme, described foaming agent, fluid loss additive, stabilizer can use the common various models in this area
Existing product, preparation method can use the customary preparation methods in state of the art.
Embodiment 2
A kind of for water-sensitive formation air-mist drilling slope soil paste microvesicle base fluid system, it is made up of following component in parts by weight:
Slope soil matrix starches 100 parts,
Foaming agent 0.5 part,
Fluid loss additive 0.5 part,
Stabilizer 0.3 part.
In the present embodiment, described slope soil matrix slurry is made up of following component in parts by weight: 0.2 part of soda ash, 0.1 part of caustic soda, and 5
Part bentonite, the water of 100 parts.
In the present embodiment, described foaming agent refers to the foaming agent that commercially available model is COA-30.
In the present embodiment, described fluid loss additive refers to polyanion cellulose PAC-LV.
In the present embodiment, described stabilizer refers to polyacrylic acid potassium KPAM.
Embodiment 3
A kind of for water-sensitive formation air-mist drilling slope soil paste microvesicle base fluid system, it is characterised in that in parts by weight by following group
Part is constituted:
Slope soil matrix starches 100 parts,
Foaming agent 0.7 part,
Fluid loss additive 1 part,
Stabilizer 0.5 part.
In the present embodiment, described slope soil matrix slurry is made up of following component in parts by weight: 0.5 part of soda ash, 0.4 part of burning
Alkali, 8 parts of bentonites, the water of 100 parts.
Embodiment 4
A kind of for water-sensitive formation air-mist drilling slope soil paste microvesicle base fluid system, it is made up of following component in parts by weight:
Slope soil matrix starches 100 parts,
Foaming agent 0.6 part,
Fluid loss additive 0.8 part,
Stabilizer 0.4 part.
In the present embodiment, described slope soil matrix slurry is made up of following component in parts by weight: 0.4 part of soda ash, 0.3 part of caustic soda, and 7
Part bentonite, the water of 100 parts.
Embodiment 5
As a relatively preferred forms of the present invention, following scheme is used to have optimum efficiency through following test:
The present embodiment base fluid includes in parts by weight: 100 parts of slope soil matrix slurries, 0.7 part of foaming agent, 0.5 portion of fluid loss additive, 0.4
Part stabilizer.
The present embodiment slope soil matrix slurry is made up of following component in parts by weight: 0.3 part of soda ash, 0.3 part of caustic soda, 6 parts of swellings
Soil, the water of 100 parts.
Foaming agent described in the present embodiment refers to the foaming agent that commercially available model is COA-30.Described fluid loss additive refers to gather
Anionic cellulose PAC-LV.Described stabilizer refers to polyacrylic acid potassium KPAM.
1. laboratory experiment
1. inhibition evaluation test.
Take mud stone core to be immersed in 150ml base fluid system, measure the linear expansion after its 2h, 24h, 48h, 72h respectively
Rate, test data is shown in linear expansion rate result of the test table, and it is 1.52% that core soaks 2h linear expansivity, is also only after soaking 72h
8.16%, show that base fluid system can significantly reduce the hydration swelling of mud stone.
Test result indicate that by rolling the rate of recovery, slope soil paste microvesicle base fluid system has the highest mud stone rate of recovery
97.80%, show that base fluid system has the strongest suppression hydration of mud stone dispersibility, this tests, with linear expansion rate, the conclusion drawn
Consistent.
2. anti-salt property evaluation test.
Test result indicate that, after slope soil paste microvesicle base fluid system adds NaCl, its rheological property, frothing percentage etc. are the most no
Impacted, even if NaCl dosage reaches 30%, filter loss only 12ml, the performance such as rheological characteristic and frothing percentage is slightly changed, and still can reach
Drilling well needs, and fully illustrates the saline-alkaline tolerance that this system is good.
The linear expansion rate experimental result of the present invention, rolling rate of recovery experimental result and Experiment of salt-resisting performance of polyvinyl result such as following table
Shown in:
Table 1 linear expansion rate experimental result (80 DEG C, 16h)
Table 2 rolls rate of recovery experimental result (80 DEG C, 16h)
Table 3 Experiment of salt-resisting performance of polyvinyl result (80 DEG C, 16h)
2. field conduct mode
In base fluid tank, configure slope soil paste microvesicle base fluid, use slush pump to inject base fluid, determine according to borehole size and well depth
Injection rate and liquid measure, regulation gas injection equipment and slush pump discharge capacity ensure air inflow and base fluid amount, and gas-liquid mixed is through gas-liquid mixed
Entering well after device, the injection fluid of cutting carring returns through ground sediment outflow pipeline and drains into landwaste pond；Base fluid in landwaste pond is by diving
Pump is recycled to vibratory sieve surge tank, is separated by vibratory sieve solid phase, and the base fluid after separation enters base fluid tank, at base fluid tank sample tap
Being sampled detection, base fluid performance indications are up to standard, are pumped to atomizer pump and repeat to circulate next time, if the most up to standard, adjust dosage straight
Reuse after up to standard.
Claims (7)
1. one kind is used for water-sensitive formation air-mist drilling slope soil paste microvesicle base fluid system, it is characterised in that in parts by weight by as follows
Component is constituted:
Slope soil matrix starches 100 parts,
Foaming agent 0.5 0.7 parts,
Fluid loss additive 0.5 1 parts,
Stabilizer 0.3 0.5 parts.
It is the most according to claim 1 for water-sensitive formation air-mist drilling slope soil paste microvesicle base fluid system, it is characterised in that: institute
State slope soil matrix slurry to be made up of following component in parts by weight: 0.2 0.5 parts of soda ash, 0.1 0.4 parts of caustic soda, 58 parts of swellings
Soil, the water of 100 parts.
The most according to claim 1 and 2 for water-sensitive formation air-mist drilling slope soil paste microvesicle base fluid system, its feature exists
In: described it is made up of following component in parts by weight for water-sensitive formation air-mist drilling slope soil paste microvesicle base fluid system: 100 parts of slopes
Soil matrix is starched, 0.7 part of foaming agent, 0.5 portion of fluid loss additive, 0.4 part of stabilizer.
It is the most according to claim 3 for water-sensitive formation air-mist drilling slope soil paste microvesicle base fluid system, it is characterised in that: institute
State slope soil matrix slurry to be made up of following component in parts by weight: 0.3 part of soda ash, 0.3 part of caustic soda, 6 parts of bentonites, the water of 100 parts.
5. according to described in claim 1,2 or 4 for water-sensitive formation air-mist drilling slope soil paste microvesicle base fluid system, its feature exists
In: described foaming agent refers to the foaming agent that commercially available model is COA-30.
6. according to described in claim 1,2 or 4 for water-sensitive formation air-mist drilling slope soil paste microvesicle base fluid system, its feature exists
In: described fluid loss additive refers to polyanion cellulose PAC-LV.
7. according to described in claim 1,2 or 4 for water-sensitive formation air-mist drilling slope soil paste microvesicle base fluid system, its feature exists
In: described stabilizer refers to polyacrylic acid potassium KPAM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610241871.1A CN105860944A (en) | 2016-04-19 | 2016-04-19 | Bentonite slurry microbubble base liquid system for water-sensitive formation mist drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610241871.1A CN105860944A (en) | 2016-04-19 | 2016-04-19 | Bentonite slurry microbubble base liquid system for water-sensitive formation mist drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105860944A true CN105860944A (en) | 2016-08-17 |
Family
ID=56632222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610241871.1A Pending CN105860944A (en) | 2016-04-19 | 2016-04-19 | Bentonite slurry microbubble base liquid system for water-sensitive formation mist drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105860944A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100000795A1 (en) * | 2008-07-02 | 2010-01-07 | Clearwater International, Llc | Enhanced oil-based foam drilling fluid compositions and method for making and using same |
| CN101747878A (en) * | 2010-01-28 | 2010-06-23 | 大庆石油管理局 | Atomization foam drilling fluid |
| CN102079973A (en) * | 2010-12-13 | 2011-06-01 | 中国石油集团川庆钻探工程有限公司 | Circulated stable foams |
| CN104232038A (en) * | 2014-09-04 | 2014-12-24 | 中国石油集团渤海钻探工程有限公司 | Solid-free strong inhibition foam drilling fluid |
-
2016
- 2016-04-19 CN CN201610241871.1A patent/CN105860944A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100000795A1 (en) * | 2008-07-02 | 2010-01-07 | Clearwater International, Llc | Enhanced oil-based foam drilling fluid compositions and method for making and using same |
| CN101747878A (en) * | 2010-01-28 | 2010-06-23 | 大庆石油管理局 | Atomization foam drilling fluid |
| CN102079973A (en) * | 2010-12-13 | 2011-06-01 | 中国石油集团川庆钻探工程有限公司 | Circulated stable foams |
| CN104232038A (en) * | 2014-09-04 | 2014-12-24 | 中国石油集团渤海钻探工程有限公司 | Solid-free strong inhibition foam drilling fluid |
Non-Patent Citations (2)
| Title |
|---|
| 邓柯 等: "一种微泡沫基液体系在砂质黄土层雾化钻井中的应用", 《钻采工艺》 * |
| 魏武 等: "基于膨润土浆基液的雾化钻井技术研究与应用", 《钻采工艺》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102070909B (en) | Cation modified asphalt and preparation method thereof | |
| CN101613595B (en) | Micro-foam drilling fluid | |
| JP5163996B2 (en) | Liquefied carbon dioxide inflow method and underground infeed device | |
| CN103059826B (en) | Foam water-drainage agent and its aqueous solution | |
| CN102634327B (en) | Gas field foam drainage agent | |
| CN103867170B (en) | The method of a kind of low production and low pressure gas well automatic gas-producing foam discharge opeing | |
| CN103897674B (en) | A kind of well cleaning solution and preparation method | |
| CN104927817A (en) | Three-phase self-foaming water-plugging agent | |
| CN105916959A (en) | Fracturing process using liquid ammonia | |
| CN101798499A (en) | Strong inhibition type anti-collapse foam liquid for drilling | |
| CN103450870B (en) | The drag reducer of pressure break is hidden for unconventionaloil pool | |
| CN104592957B (en) | Sulfonic-group-containing polyamine shale inhibitor and preparation method thereof | |
| CN104342096A (en) | Sustained-release foaming agent | |
| CN103396771A (en) | Degradable drilling fluid based on nano material | |
| CN112761608A (en) | Method for improving shale oil recovery ratio and reducing fracturing fluid flowback in pressure flooding integrated mode | |
| CN102002349A (en) | Seawater-based polyamine well completion fluid and preparation method thereof | |
| CN101311242B (en) | Hydroxy-acid salt drilling fluid | |
| CN104109510B (en) | A kind of Solid Free is for slurry completion protection liquid and preparation method thereof | |
| CN104877656A (en) | Preparation method of acid-based visco-elastic clean foam fracturing fluid VCFa for construction of nanometer apertures | |
| CN103013477A (en) | High-temperature ebonite foam for unbalanced drilling and preparation method thereof | |
| US20200063019A1 (en) | Ultrasonic solubilisation of surfactants for enhanced oil recovery | |
| CN105860944A (en) | Bentonite slurry microbubble base liquid system for water-sensitive formation mist drilling | |
| CN104449622B (en) | High temperature resistance high pressure organic composite type Oil layer protective solution and preparation method thereof | |
| CN102559168A (en) | Acid-sensitive variable-viscosity mixed surfactant | |
| CN103865499B (en) | A kind of circulative micro-foam polymer drilling fluid and preparation 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: 20160817 |