CN105860944A - Be used for water sensitive formation atomizing drilling field soil thick liquid microbubble base liquid system - Google Patents
Be used for water sensitive formation atomizing drilling field soil thick liquid microbubble base liquid system Download PDFInfo
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- 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
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- 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.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 239000002689 soil Substances 0.000 title claims abstract description 46
- 238000005553 drilling Methods 0.000 title claims abstract description 43
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 27
- 239000007788 liquid Substances 0.000 title abstract description 8
- 239000004088 foaming agent Substances 0.000 claims abstract description 20
- 239000003381 stabilizer Substances 0.000 claims abstract description 16
- 239000002002 slurry Substances 0.000 claims abstract description 13
- 239000012530 fluid Substances 0.000 claims description 48
- 239000003595 mist Substances 0.000 claims description 26
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- 239000011159 matrix material Substances 0.000 claims description 19
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 18
- 239000000654 additive Substances 0.000 claims description 15
- 230000000996 additive effect Effects 0.000 claims description 15
- 235000017550 sodium carbonate Nutrition 0.000 claims description 9
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 9
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 8
- 229920002472 Starch Polymers 0.000 claims description 7
- 235000012216 bentonite Nutrition 0.000 claims description 7
- 235000019698 starch Nutrition 0.000 claims description 7
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 4
- 229920002125 Sokalan® Polymers 0.000 claims description 4
- 239000004584 polyacrylic acid Substances 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
- 239000011591 potassium Substances 0.000 claims description 4
- 206010042674 Swelling Diseases 0.000 claims description 3
- 239000001913 cellulose Substances 0.000 claims description 3
- 229920002678 cellulose Polymers 0.000 claims description 3
- 229920000447 polyanionic polymer Polymers 0.000 claims description 3
- 230000008961 swelling Effects 0.000 claims description 3
- 238000000889 atomisation Methods 0.000 abstract description 8
- 230000005764 inhibitory process Effects 0.000 abstract description 4
- 239000000440 bentonite Substances 0.000 abstract description 3
- 229910000278 bentonite Inorganic materials 0.000 abstract description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 abstract description 3
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 239000000706 filtrate Substances 0.000 abstract 1
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 239000002585 base Substances 0.000 description 41
- 238000012360 testing method Methods 0.000 description 8
- 239000004575 stone Substances 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229920006321 anionic cellulose Polymers 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a soil slurry microbubble base liquid system for water-sensitive formation atomization drilling, which comprises the following components in parts by weight: 100 portions of bentonite-based pulp, 0.5 to 0.7 portion of foaming agent, 0.5 to 1 portion of filtrate reducer and 0.3 to 0.5 portion of stabilizer. The invention can enhance the inhibition performance of a base liquid system, meet the requirement of stabilizing the well wall of the atomized drilling well in the water-exposed stratum and improve the capability of the gas drilling well in dealing with the water-sensitive water-out stratum.
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 | Be used for water sensitive formation atomizing drilling field soil thick liquid microbubble base liquid system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610241871.1A CN105860944A (en) | 2016-04-19 | 2016-04-19 | Be used for water sensitive formation atomizing drilling field soil thick liquid microbubble base liquid system |
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 | Be used for water sensitive formation atomizing drilling field soil thick liquid microbubble base liquid system |
Country Status (1)
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| 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 | Recyclable stable foam |
| 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 | Recyclable stable foam |
| 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》 * |
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Application publication date: 20160817 |