CN105018050A - Solid phase-less weak gel drilling fluid and use thereof - Google Patents
Solid phase-less weak gel drilling fluid and use thereof Download PDFInfo
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- CN105018050A CN105018050A CN201510349055.8A CN201510349055A CN105018050A CN 105018050 A CN105018050 A CN 105018050A CN 201510349055 A CN201510349055 A CN 201510349055A CN 105018050 A CN105018050 A CN 105018050A
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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
- C09K8/04—Aqueous well-drilling compositions
- C09K8/06—Clay-free compositions
- C09K8/12—Clay-free compositions containing synthetic organic macromolecular compounds or their precursors
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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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/12—Swell inhibition, i.e. using additives to drilling or well treatment fluids for inhibiting clay or shale swelling or disintegrating
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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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/34—Lubricant additives
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- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses a solid phase-less weak gel drilling fluid and a use thereof. The solid phase-less weak gel drilling fluid comprises 1000 parts of water, 1-10 parts of alkali, 1-10 parts of sodium carbonate, 10-50 parts of a high temperature shear strength improving agent, 5-20 parts of a tackifier, 10-30 parts of a filtrate reducer, 20-40 parts of a lubricant, 5-20 parts of a shale inhibitor, 5-20 parts of an anti-temperature coating agent, 5-20 parts of a high temperature stabilizing agent, 20-40 parts of a temporary plugging agent, 1-10 parts of a pH conditioning agent and a proper amount of salt and a weighting agent. The solid phase-less weak gel drilling fluid is a novel weak gel drilling fluid specially for a horizontal well hydrocarbon reservoir well section, has functions of a completion fluid, does not contain a clay phase, has unique rheological properties, excellent dynamic sand carrying capacity and good static sand carrying capacity, effectively solves the problem that the horizontal well section or highly-deviated well section has sand carrying difficulty and easily forms a sand setting bed, reduces solid phase and liquid phase-caused reservoir stratum damage and is conducive to reservoir stratum protection.
Description
Technical field
The invention belongs to oil drilling liquid system technical field, be specifically related to a kind of Solid Free Weak Gels drilling fluid and application thereof.
Background technology
In horizontal well drilling, traditional water base, oil base drilling fluid all can cause very major injury to reservoir, and the static state that cannot solve High angle section and horizontal section is hanged sand and dynamically takes sand.Solid Free Weak Gels drilling fluid system can address this problem preferably.
Solid Free Weak Gels drilling fluid is a kind of novel Weak Gels drilling fluid system being specifically designed to horizontal well hydrocarbon zone well section, has the function of well finishing liquid simultaneously.This system free clay phase, the Weak Gels that it is formed has unique rheological, apparent viscosity is low, ratio of dynamic shear force/yield value to plastic viscosity is high, and low-shear rate viscosity is high, has excellent dynamic prop-carrying capacity, gel strength recovers rapidly, without time-dependent manner, there is well static outstanding sand ability, effectively can overcome lateral segment or long horizontal traverse well section is taken sand difficulty, easily formed the problem of sand setting bed.Simultaneously its high viscoelasticity at low shear rates, can reduce solid phase and liquid phase to the infringement of reservoir, be conducive to reservoir protection.Solid Free Weak Gels drilling fluid development and maturation in the application, will become the excellent drilling fluid of long horizontal traverse well and horizontal well.
Summary of the invention
For the defect existed in prior art, the object of this invention is to provide a kind of drilling fluid Solid Free Weak Gels drilling fluid and application thereof.
In order to reach above object, the technical solution used in the present invention is: water, soda ash, alkali, high temperature carried successively by above-mentioned parts by weight and cut agent, tackifier, fluid loss agent, lubricant, shale control agent, high-temperature stabiliser, temporary plugging agent and slowly join in mud cup, add in reagent process, control stirring velocity under 500-1000r/min, be stirred well to each dispensing reagents evenly after add another kind again; Then regulate drilling liquid pH value at 9-11 by pH adjusting agent, add salt and weighting agent as required; Last maintenance 24 hours under room temperature.The composition and the composition by weight that participate in this Solid Free Weak Gels drilling fluid are as follows:
1000 parts, water
Alkali 1-10 part
Soda ash 1-10 part
High temperature is carried and is cut agent 10-50 part
Tackifier 5-20 part
Fluid loss agent 10-30 part
Lubricant 20-40 part
Shale control agent 5-20 part
Temperature resistance coating agent 5-20 part
High-temperature stabiliser 5-20 part
Temporary plugging agent 20-40 part
PH adjusting agent 1-10 part
The amount of salt and weighting agent can do suitable adjustment according to demand.
Further, described Solid Free Weak Gels drilling fluid, is characterized in that described alkali is sodium hydroxide.
Further, described Solid Free Weak Gels drilling fluid, is characterized in that described high temperature carries that to cut agent be biological polymer, the xanthan gum that the present invention preferentially uses Shandong Jin Li biological products company limited to provide.
Further, described Solid Free Weak Gels drilling fluid, is characterized in that described tackifier are one or more mixtures in melon glue, high sticky carboxymethyl cellulose, Polyanionic Cellulose.The height that the present invention preferentially uses Beijing Zhongke Risheng Technology Co., Ltd. to provide glues carboxymethyl cellulose.
Further, described Solid Free Weak Gels drilling fluid, is characterized in that described fluid loss agent is the mixture of one or more compositions in carboxymethyl starch, cross-linking starch or high temperature resistance starch.
Further, described Solid Free Weak Gels drilling fluid, is characterized in that the Series Lubricants of described lubricant by Reactive Synthesis such as alkylbenzene sulfonate, vegetables oil, ionic surface active agent, emulsifying agents.The liquid lubricant RH-2 that the present invention preferentially uses Beijing Zhongke Risheng Technology Co., Ltd. to provide.
Further, described Solid Free Weak Gels drilling fluid, is characterized in that described shale control agent is organic amine polymkeric substance or amido polyether compound.The polyamine inhibitor UHIB that the present invention preferentially uses Beijing Zhongke Risheng Technology Co., Ltd. to provide.
Further, described Solid Free Weak Gels drilling fluid, is characterized in that described temperature resistance coating agent is the strong coating agent of zwitter-ion.The strong bag that the present invention preferentially uses Beijing Zhongke Risheng Technology Co., Ltd. to provide suppressed dose of PLUS-L.
Further, described Solid Free Weak Gels drilling fluid, is characterized in that described high-temperature stabiliser is sulfonated phenol formaldehyde resin and modifier thereof.The sulfonated phenol formaldehyde resin that the present invention preferentially uses Puyang orient chemical head factory to provide.
Further, described Solid Free Weak Gels drilling fluid, is characterized in that described temporary plugging agent is calcium carbonate superfine powder.
Further, described Solid Free Weak Gels drilling fluid, is characterized in that described pH adjusting agent is the saturated solution of one or both preparations in sodium hydroxide, sodium carbonate, potassium hydroxide.The present invention preferentially uses sodium hydroxide.
Further, described Solid Free Weak Gels drilling fluid, is characterized in that described salt is sodium-chlor.Weighting agent is one or more mixtures in potassium formiate or sodium formiate, and the present invention preferentially uses potassium formiate to do weighting agent.
Embodiment
In order to technique effect of the present invention is better described, be specifically described by following examples.The medicine used in embodiment and reagent all can be buied from market.
embodiment 1
Take according to each component of embodiment in table 11 and each component number, carry out according to step of the present invention.
embodiment 2
Take according to each component of embodiment in table 12 and each component number, carry out according to step of the present invention.
embodiment 3
Take according to each component of embodiment in table 13 and each component number, carry out according to step of the present invention.
embodiment 4
Take according to each component of embodiment in table 14 and each component number, carry out according to step of the present invention.
embodiment 5
Take according to each component of embodiment in table 15 and each component number, carry out according to step of the present invention.
embodiment 6
Take according to each component of embodiment in table 16 and each component number, carry out according to step of the present invention.
performance test
traditional performance is tested
Carry out fundamental property test to the Solid Free Weak Gels drilling fluid of embodiment 1 to embodiment 6, experimental result is in table 2.
Draw from table 2 data, the Solid Free Weak Gels drilling fluid fundamental property in embodiment 1 to embodiment 6 is good, can meet drilling well needs preferably.
heat-resisting property is tested
Heat at the Solid Free Weak Gels drilling fluid of embodiment 1 to embodiment 6 and 150 DEG C to be rolled after 16 hours performance in table 3.
Table 3 gives the heat-resisting property data of embodiment 1 to embodiment 6 Solid Free Weak Gels drilling fluid, can show that the present invention can resist 150 DEG C from data.
anti-wilkinite pollution capacity
Solid Free Weak Gels drilling fluid in embodiment 1 to enforcement 6 is added 6% triumph soil, 150 DEG C of heat to roll after 16 hours performance in table 4.
As seen from the data in Table 4, the present invention's anti-wilkinite pollution capacity is strong.
the anti-salt pollution capacity test of drilling fluid
Get enforcement 1,4,6 Solid Free Weak Gels drilling fluid, after respectively adding 4% sodium-chlor, 150 DEG C of heat to roll after 16 hours performance in table 5.
Get enforcement 1,4,6 Solid Free Weak Gels drilling fluid, after respectively adding 15% sodium-chlor, 150 DEG C of heat to roll after 16 hours performance in table 6.
Table 5 and table 6 give embodiment anti-salt contamination data, can find out that the present invention's anti-salt pollution capacity is better by data.
the drilling fluids and drill cuttings rate of recovery is tested
Get enforcement 1,4,6 Solid Free Weak Gels drilling fluid and respectively add Xinjiang mud shale drilling cuttings, after 120 DEG C of heat roll 16 hours, cuttings recovery data are respectively 89.6%, 92.1%, 95.8%.
As can be seen from rate of recovery data, Solid Free Weak Gels drilling fluid of the present invention suppresses drilling cuttings dispersive ability strong.
Above-described embodiment just illustrates of the present invention, and the present invention also can implement with other ad hoc fashion or other particular form, and does not depart from main idea of the present invention or essential characteristic.Therefore, description embodiment from the viewpoint of any all should be considered as illustrative but not determinate.Scope of the present invention should be illustrated by the claim of adding, any also should be within the scope of the present invention with the intention of claim and the change of scope equivalence.
Claims (12)
1. a Solid Free Weak Gels drilling fluid, is characterized in that, counts by weight, containing following material:
1000 parts, water
Alkali 1-10 part
Soda ash 1-10 part
High temperature is carried and is cut agent 10-50 part
Tackifier 5-20 part
Fluid loss agent 10-30 part
Lubricant 20-40 part
Shale control agent 5-20 part
Temperature resistance coating agent 5-20 part
High-temperature stabiliser 5-20 part
Temporary plugging agent 20-40 part
PH adjusting agent 1-10 part
The amount of salt and weighting agent can do suitable adjustment according to demand.
2. drilling fluid according to claim 1, is characterized in that: described Solid Free Weak Gels drilling fluid carries out in accordance with the following steps:
Step one: successively water, soda ash, alkali, high temperature are carried by above-mentioned parts by weight and cut agent, tackifier, fluid loss agent, lubricant, shale control agent, temperature resistance coating agent, high-temperature stabiliser, temporary plugging agent slowly join in mud cup, add in reagent process, control stirring velocity under 500-1000r/min, be stirred well to each dispensing reagents evenly after add another kind again;
Step 2
:add salt and weighting agent as required, regulate drilling liquid pH value at 9-11 by pH adjusting agent;
Step 3: maintenance 24 hours under room temperature.
3., according to drilling fluid described arbitrarily in claim 1-2, it is characterized in that described alkali is sodium hydroxide.
4., according to drilling fluid arbitrarily described in claim 1-3, it is characterized in that described high temperature carries that to cut agent be biological polymer.
5., according to drilling fluid described arbitrarily in claim 1-4, it is characterized in that described tackifier are the mixture of one or more compositions in melon glue, high sticky carboxymethyl cellulose, Polyanionic Cellulose.
6., according to drilling fluid described arbitrarily in claim 1-5, it is characterized in that described fluid loss agent is the mixture of one or more compositions in carboxymethyl starch, cross-linking starch or high temperature resistance starch.
7., according to drilling fluid described arbitrarily in claim 1-6, it is characterized in that described lubricant is the Series Lubricants primarily of Reactive Synthesis such as alkylbenzene sulfonate, vegetables oil, ionic surface active agent, emulsifying agents.
8., according to drilling fluid described arbitrarily in claim 1-7, it is characterized in that described shale control agent is organic amine polymkeric substance or amido polyether compound.
9., according to drilling fluid described arbitrarily in claim 1-8, it is characterized in that described temperature resistance coating agent is the strong coating agent of zwitter-ion.
10., according to drilling fluid described arbitrarily in claim 1-9, it is characterized in that described high-temperature stabiliser is sulfonated phenol formaldehyde resin and modifier thereof.
11. according to drilling fluid described arbitrarily in claim 1-10, it is characterized in that described pH adjusting agent is the saturated solution of one or both preparations in sodium hydroxide, sodium carbonate, potassium hydroxide.
12., according to drilling fluid arbitrarily described in claim 1-11, is characterized in that described salt is sodium-chlor, and weighting agent is mixtures of one or more compositions in potassium formiate or sodium formiate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510349055.8A CN105018050A (en) | 2015-06-23 | 2015-06-23 | Solid phase-less weak gel drilling fluid and use thereof |
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| CN201510349055.8A CN105018050A (en) | 2015-06-23 | 2015-06-23 | Solid phase-less weak gel drilling fluid and use thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106085386A (en) * | 2016-07-07 | 2016-11-09 | 中国石油集团川庆钻探工程有限公司 | Water-based drilling fluid |
| CN106190067A (en) * | 2016-07-07 | 2016-12-07 | 中国石油集团川庆钻探工程有限公司 | Water-based drilling fluid suitable for low well temperature and low formation pressure coefficient |
| CN106381134A (en) * | 2016-08-25 | 2017-02-08 | 中国石油大学(北京) | Drilling fluid additive composition suitable for coal-bed gas wells and its application, water-based drilling fluid and its application |
| CN107987817A (en) * | 2017-11-28 | 2018-05-04 | 中国煤炭地质总局水文地质局 | One kind is in limestone formation horizontal well construction flushing liquor |
| CN108517203A (en) * | 2018-05-22 | 2018-09-11 | 克拉玛依友联实业有限责任公司 | Vinyl polymer nanoparticles free clay phase water-base drilling fluid and preparation method thereof |
| CN108546548A (en) * | 2018-03-27 | 2018-09-18 | 长江大学 | A kind of deep water water-base drilling fluid and its application |
| CN111826137A (en) * | 2019-04-15 | 2020-10-27 | 中石化石油工程技术服务有限公司 | Amino polyether drilling fluid and preparation method thereof |
| CN112552888A (en) * | 2020-12-16 | 2021-03-26 | 成都西油华巍科技有限公司 | Preparation method of temperature-resistant salt-resistant gel temporary plugging isolation fluid for completion fluid |
| CN114774101A (en) * | 2022-04-12 | 2022-07-22 | 中海石油(中国)有限公司 | Solid-phase-free high-density gravel packing sand-carrying fluid and preparation method thereof |
| CN116589992A (en) * | 2023-03-17 | 2023-08-15 | 北京探矿工程研究所 | Environment-friendly weak gel wall-protecting core-protecting drilling fluid for loose sandstone stratum drilling |
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| WO2005026288A1 (en) * | 2003-09-05 | 2005-03-24 | Baker Hughes Incorporated | Fluid loss control and sealing agent for drilling depleted sand formations |
| WO2010041200A2 (en) * | 2008-10-07 | 2010-04-15 | Ecolab Inc. | Zero waste reverse osmosis system and downstream rinsing |
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| CN104194746A (en) * | 2014-08-27 | 2014-12-10 | 克拉玛依市金鑫科技有限公司 | Biodegradable drilling fluid |
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2015
- 2015-06-23 CN CN201510349055.8A patent/CN105018050A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005026288A1 (en) * | 2003-09-05 | 2005-03-24 | Baker Hughes Incorporated | Fluid loss control and sealing agent for drilling depleted sand formations |
| WO2010041200A2 (en) * | 2008-10-07 | 2010-04-15 | Ecolab Inc. | Zero waste reverse osmosis system and downstream rinsing |
| CN103194188A (en) * | 2013-03-28 | 2013-07-10 | 长江大学 | Non-gel-breaking liquefiable clean drilling fluid and matched well completion fluid |
| CN104194746A (en) * | 2014-08-27 | 2014-12-10 | 克拉玛依市金鑫科技有限公司 | Biodegradable drilling fluid |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106085386A (en) * | 2016-07-07 | 2016-11-09 | 中国石油集团川庆钻探工程有限公司 | Water-based drilling fluid |
| CN106190067A (en) * | 2016-07-07 | 2016-12-07 | 中国石油集团川庆钻探工程有限公司 | Water-based drilling fluid suitable for low well temperature and low formation pressure coefficient |
| CN106381134A (en) * | 2016-08-25 | 2017-02-08 | 中国石油大学(北京) | Drilling fluid additive composition suitable for coal-bed gas wells and its application, water-based drilling fluid and its application |
| CN106381134B (en) * | 2016-08-25 | 2017-10-27 | 中国石油大学(北京) | Drilling fluid additive composition and its application and water-base drilling fluid and its application suitable for coal bed gas well |
| CN107987817A (en) * | 2017-11-28 | 2018-05-04 | 中国煤炭地质总局水文地质局 | One kind is in limestone formation horizontal well construction flushing liquor |
| CN108546548A (en) * | 2018-03-27 | 2018-09-18 | 长江大学 | A kind of deep water water-base drilling fluid and its application |
| CN108546548B (en) * | 2018-03-27 | 2020-09-18 | 长江大学 | Deepwater water-based drilling fluid and application thereof |
| CN108517203A (en) * | 2018-05-22 | 2018-09-11 | 克拉玛依友联实业有限责任公司 | Vinyl polymer nanoparticles free clay phase water-base drilling fluid and preparation method thereof |
| CN111826137A (en) * | 2019-04-15 | 2020-10-27 | 中石化石油工程技术服务有限公司 | Amino polyether drilling fluid and preparation method thereof |
| CN112552888A (en) * | 2020-12-16 | 2021-03-26 | 成都西油华巍科技有限公司 | Preparation method of temperature-resistant salt-resistant gel temporary plugging isolation fluid for completion fluid |
| CN114774101A (en) * | 2022-04-12 | 2022-07-22 | 中海石油(中国)有限公司 | Solid-phase-free high-density gravel packing sand-carrying fluid and preparation method thereof |
| CN116589992A (en) * | 2023-03-17 | 2023-08-15 | 北京探矿工程研究所 | Environment-friendly weak gel wall-protecting core-protecting drilling fluid for loose sandstone stratum drilling |
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Application publication date: 20151104 |