CN107987817B - Flushing fluid for horizontal well construction in limestone stratum - Google Patents
Flushing fluid for horizontal well construction in limestone stratum Download PDFInfo
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- CN107987817B CN107987817B CN201711218340.1A CN201711218340A CN107987817B CN 107987817 B CN107987817 B CN 107987817B CN 201711218340 A CN201711218340 A CN 201711218340A CN 107987817 B CN107987817 B CN 107987817B
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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
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
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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
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
- C09K8/528—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning inorganic depositions, e.g. sulfates or carbonates
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Abstract
The invention provides a washing fluid for horizontal well construction in a limestone stratum, which comprises the following components in parts by mass: 0.1 to 0.2 percent of salt-resistant copolymer; 0.1 to 0.2 percent of fluid loss agent; 0.2 to 0.3 percent of tackifier; coating agent 0.3% -0.4%; 0.4 to 0.5 percent of non-fluorescent lubricant; 0.4 to 0.6 percent of mud inhibitor; the balance of water. The horizontal well construction flushing fluid in the limestone stratum fully utilizes the tackifying performance of the salt-resistant copolymer (GTQ) and the tackifier, the prepared slurry has the characteristics of high viscosity and strong rock powder carrying capacity, and particularly, the coating agent (BBJ) is added, so that rock powder generated during drilling in a hole can be timely taken out of a horizontal well section, and the drilling accidents of jamming and burying caused by high solid phase content in the flushing fluid are well reduced.
Description
Technical Field
The invention belongs to the field of drilling engineering, and particularly relates to a horizontal well construction flushing fluid for a limestone stratum.
Background
The conventional flushing fluid is mainly prepared by taking measurement data such as viscosity, water loss, specific gravity, sand content and the like as measurement standards, is designed for a conventional construction straight hole section, is deficient in construction research of a horizontal well, and cannot well solve the problems of rock dust carrying and hole wall maintenance, particularly the problems of sand setting and drill supporting of the horizontal well section.
Particularly, when a horizontal well is constructed in a limestone stratum, the accidents of jamming and burying of the drill bit caused by the quality of the flushing fluid frequently occur, the configuration method of the flushing fluid is an important guarantee for the quality of the flushing fluid, and the problems that the existing flushing fluid is low in viscosity, limited in rock carrying capacity, easy to cause the accidents of jamming and burying of the drill bit and the like are solved.
Disclosure of Invention
In view of the above, the invention aims to provide a washing fluid for horizontal well construction in a limestone stratum, so as to solve the problems that the existing washing fluid is low in viscosity, limited in rock carrying capacity, easy to cause blocking, buried drilling accidents and the like.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the horizontal well construction flushing fluid for the limestone formation comprises the following components in parts by mass:
0.1 to 0.2 percent of salt-resistant copolymer;
0.1 to 0.2 percent of fluid loss agent;
0.2 to 0.3 percent of tackifier;
coating agent 0.3% -0.4%;
0.4 to 0.5 percent of non-fluorescent lubricant;
0.4 to 0.6 percent of mud inhibitor;
the balance of water.
Preferably, the salt-resistant copolymer is GTQ.
Preferably, the fluid loss agent is GPNA.
Preferably, the tackifier is SN.
Preferably, the coating agent is BBJ.
Preferably, the non-fluorescent lubricant is GLUB.
Preferably, the mud inhibitor is a potassium-containing inhibitor and a calcium-containing inhibitor.
Preferably, the mass ratio of the potassium-containing inhibitor to the calcium-containing inhibitor is 4: 1.
Preferably, the content of the potassium-containing inhibitor is 0.4%, and the content of the calcium-containing inhibitor is 0.1%.
A preparation method of a horizontal well construction flushing fluid in a limestone stratum comprises the following steps:
(1) adding water into a stirrer according to a proportion, and starting a stirring device in the stirrer to stir;
(2) adding the coating agent in proportion, and continuously stirring to fully dissolve the coating agent;
(3) adding the tackifier according to the proportion, and continuously stirring to fully dissolve the tackifier;
(4) adding the fluid loss agent in proportion, and continuously stirring to dissolve uniformly;
(5) adding the salt-resistant copolymer according to the proportion, and continuing stirring;
(6) adding the non-fluorescent lubricant in proportion, and continuing stirring;
(7) adding a slurry inhibitor according to the proportion, and continuously stirring;
(8) and after the drilling fluid additives are uniformly mixed, obtaining the horizontal well construction flushing fluid in the limestone stratum.
Compared with the prior art, the horizontal well construction flushing fluid in the limestone formation has the following advantages:
the horizontal well construction flushing fluid in the limestone stratum fully utilizes the tackifying performance of the salt-resistant copolymer (GTQ) and the tackifier, the prepared slurry has the characteristics of high viscosity and strong rock powder carrying capacity, and particularly, the coating agent (BBJ) is added, so that rock powder generated during drilling in a hole can be timely taken out of a horizontal well section, and the drilling accidents of jamming and burying caused by high solid phase content in the flushing fluid are well reduced. The quality of the flushing liquid is fully verified to be reliable after tens of horizontal holes are used, and the flushing liquid is low in cost, economical and practical.
Detailed Description
Unless defined otherwise, technical terms used in the following examples have the same meanings as commonly understood by one of ordinary skill in the art to which the present invention belongs. The test reagents used in the following examples, unless otherwise specified, are all conventional biochemical reagents; the experimental methods are conventional methods unless otherwise specified.
In the following examples:
the salt-resistant copolymer is GTQ, purchased from Chengtong drilling material factories in Beijing, and has the functions of improving viscosity, improving cutting, reducing water loss, protecting glue and the like;
the coating agent is BBJ, is purchased from Chengtong drilling material factories in Beijing, can coat rock debris, improves the inhibition performance, and has the functions of improving the viscosity and reducing the water loss;
the fluid loss agent is GPNA, is purchased from Chengtong drilling material factories in Beijing, can reduce the fluid loss amount of slurry and slightly increase the viscosity;
the tackifier is SN, is purchased from Shijiazhuang Dingsheng science and technology Limited company, can quickly improve the viscosity and the cutting of the slurry and carry rock powder;
the low-fluorescence lubricant is FT-342, purchased from Puyang Puhao chemical industry Co., Ltd, and is capable of reducing the frictional resistance;
the potassium-containing inhibitor and the calcium-containing inhibitor are purchased from Chengtong drilling material factories in Beijing and can improve the mud inhibition performance.
The present invention will be described in detail with reference to examples.
In each example, the limestone formation horizontal well construction flushing fluid is prepared by the following method,
(1) adding water into a stirrer according to a proportion, and starting a stirring device in the stirrer to stir;
(2) adding the coating agent in proportion, and continuously stirring to fully dissolve the coating agent;
(3) adding the tackifier according to the proportion, and continuously stirring to fully dissolve the tackifier;
(4) adding the fluid loss agent in proportion, and continuously stirring to dissolve uniformly;
(5) adding the salt-resistant copolymer according to the proportion, and continuing stirring;
(6) adding the non-fluorescent lubricant in proportion, and continuing stirring;
(7) adding a slurry inhibitor according to the proportion, and continuously stirring;
(8) and after the drilling fluid additives are uniformly mixed, obtaining the horizontal well construction flushing fluid in the limestone stratum.
Example 1
The horizontal well construction flushing fluid for the limestone formation comprises the following components in parts by mass: 0.1% of salt-resistant copolymer; 0.1 percent of fluid loss agent; 0.2 percent of tackifier; coating agent 0.3%; 0.4% of non-fluorescent lubricant; 0.4% of potassium-containing inhibitor; 0.1% of calcium-containing inhibitor; the balance of water.
Example 2
The horizontal well construction flushing fluid for the limestone formation comprises the following components in parts by mass: 0.2% of salt-resistant copolymer; 0.2 percent of fluid loss agent; 0.3 percent of tackifier; coating agent 0.4%; 0.5% of non-fluorescent lubricant; 0.4% of potassium-containing inhibitor; 0.1% of calcium-containing inhibitor; the balance of water.
Example 3
The horizontal well construction flushing fluid for the limestone formation comprises the following components in parts by mass: 0.15% of salt-resistant copolymer; 0.15 percent of fluid loss agent; 0.25% of tackifier; coating agent 0.35%; 0.45% of non-fluorescent lubricant; 0.4% of potassium-containing inhibitor; 0.1% of calcium-containing inhibitor; the balance of water.
The performance parameters of each example are shown in table 1.
TABLE 1
The cost of the formulation of the embodiment 1-3 is 100-300 yuan/square.
By using the washing liquid for horizontal well construction in the limestone formation, the construction-oriented exploration treatment project of the chendong mine-980 level in the deep region is adopted, namely the washing liquid prepared according to the formula, in the construction process, the excellent performance of the washing liquid is fully embodied, the safe and efficient production is realized, and the washing liquid is worthy of popularization and application.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. The utility model provides a horizontal well construction flush fluid in limestone formation which characterized in that: the washing liquid consists of the following components in percentage by mass:
0.1 to 0.2 percent of salt-resistant copolymer;
0.1 to 0.2 percent of fluid loss agent;
0.2 to 0.3 percent of tackifier;
coating agent 0.3% -0.4%;
0.4 to 0.5 percent of non-fluorescent lubricant;
0.4 to 0.6 percent of mud inhibitor;
the balance of water;
the salt-resistant copolymer is GTQ; the fluid loss agent is GPNA; the tackifier is SN; the coating agent is BBJ; the non-fluorescent lubricant is GLUB; the mud inhibitor is potassium-containing inhibitor and calcium-containing inhibitor.
2. The horizontal well construction flushing fluid for the limestone formation as claimed in claim 1, which is characterized in that: the mass ratio of the potassium-containing inhibitor to the calcium-containing inhibitor is 4: 1.
3. The washing fluid for horizontal well construction in a limestone formation according to claim 2, which is characterized in that: the content of the potassium-containing inhibitor is 0.4 percent, and the content of the calcium-containing inhibitor is 0.1 percent.
4. 1-3, the preparation method of the horizontal well construction flushing fluid in the limestone formation is characterized by comprising the following steps: the method comprises the following steps:
(1) adding water into a stirrer according to a proportion, and starting a stirring device in the stirrer to stir;
(2) adding the coating agent in proportion, and continuously stirring to fully dissolve the coating agent;
(3) adding the tackifier according to the proportion, and continuously stirring to fully dissolve the tackifier;
(4) adding the fluid loss agent in proportion, and continuously stirring to dissolve uniformly;
(5) adding the salt-resistant copolymer according to the proportion, and continuing stirring;
(6) adding the non-fluorescent lubricant in proportion, and continuing stirring;
(7) adding a slurry inhibitor according to the proportion, and continuously stirring;
(8) and after the drilling fluid additives are uniformly mixed, obtaining the horizontal well construction flushing fluid in the limestone stratum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711218340.1A CN107987817B (en) | 2017-11-28 | 2017-11-28 | Flushing fluid for horizontal well construction in limestone stratum |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711218340.1A CN107987817B (en) | 2017-11-28 | 2017-11-28 | Flushing fluid for horizontal well construction in limestone stratum |
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| CN107987817A CN107987817A (en) | 2018-05-04 |
| CN107987817B true CN107987817B (en) | 2020-09-15 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2470132A (en) * | 1947-08-18 | 1949-05-17 | Phillips Petroleum Co | Well washing fluid and method of using the same |
| US4972007A (en) * | 1987-12-11 | 1990-11-20 | Wolff Walsrode Ag | Use of cellulose derivatives in drilling fluids |
| US5232910A (en) * | 1988-12-19 | 1993-08-03 | Henkel Kommanditgesellschaft Auf Aktien | Use of selected ester oils in drilling fluids and muds |
| EP2175003A1 (en) * | 2008-10-13 | 2010-04-14 | Services Pétroliers Schlumberger | Particle-loaded wash for well cleanup |
| CN102408881A (en) * | 2011-10-17 | 2012-04-11 | 北京探矿工程研究所 | Drilling flushing fluid and preparation method thereof |
| CN102838974A (en) * | 2012-08-03 | 2012-12-26 | 煤炭科学研究总院 | Drilling flushing fluid for gangue dump |
| CN103965845A (en) * | 2013-02-05 | 2014-08-06 | 中国石油化工股份有限公司 | Flushing fluid for cementing of horizontal shale gas well |
| CN104893696A (en) * | 2015-06-19 | 2015-09-09 | 中国地质科学院探矿工艺研究所 | Collapse-preventing and leakage-preventing drilling flushing fluid while drilling and field preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220113A (en) * | 2010-04-16 | 2011-10-19 | 长江大学 | Solid phase-free drilling-in liquid |
| CN103289660A (en) * | 2012-03-01 | 2013-09-11 | 中国石油天然气股份有限公司 | Drilling fluid for protecting reservoir of tight gas reservoir horizontal well |
| CN103952128B (en) * | 2014-05-12 | 2016-08-24 | 中国石油集团渤海钻探工程有限公司 | It is applicable to the Weak Gels Solid Free water-base drilling fluid of extended reach well, horizontal well |
| CN105018050A (en) * | 2015-06-23 | 2015-11-04 | 北京中科天启油气技术有限公司 | Solid phase-less weak gel drilling fluid and use thereof |
-
2017
- 2017-11-28 CN CN201711218340.1A patent/CN107987817B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2470132A (en) * | 1947-08-18 | 1949-05-17 | Phillips Petroleum Co | Well washing fluid and method of using the same |
| US4972007A (en) * | 1987-12-11 | 1990-11-20 | Wolff Walsrode Ag | Use of cellulose derivatives in drilling fluids |
| US5232910A (en) * | 1988-12-19 | 1993-08-03 | Henkel Kommanditgesellschaft Auf Aktien | Use of selected ester oils in drilling fluids and muds |
| EP2175003A1 (en) * | 2008-10-13 | 2010-04-14 | Services Pétroliers Schlumberger | Particle-loaded wash for well cleanup |
| CN102408881A (en) * | 2011-10-17 | 2012-04-11 | 北京探矿工程研究所 | Drilling flushing fluid and preparation method thereof |
| CN102838974A (en) * | 2012-08-03 | 2012-12-26 | 煤炭科学研究总院 | Drilling flushing fluid for gangue dump |
| CN103965845A (en) * | 2013-02-05 | 2014-08-06 | 中国石油化工股份有限公司 | Flushing fluid for cementing of horizontal shale gas well |
| CN104893696A (en) * | 2015-06-19 | 2015-09-09 | 中国地质科学院探矿工艺研究所 | Collapse-preventing and leakage-preventing drilling flushing fluid while drilling and field preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| Research on Hydraulic Parameters and Field Tests of Horizontal Wells Sand-flushing with Rotating Jets;QU H;《ENERGY SOURCES PART A》;20130818;第35卷(第16期);第1566-1573页 * |
| WASHING TECHNOLOGY FOR THE MUD CAKE OF INHIBITED DRILLING FLUID;Lian, ZY;《CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS》;20150131;第50卷(第6期);第501-507页 * |
| 不分散抗盐防塌冲洗液的研究与应用;陈锡庆;《地质装备》;20161031;第17卷(第5期);第35-37页 * |
| 强成膜性护壁冲洗液体系的研究与应用;陶士先;《地质与勘探》;20141130;第50卷(第6期);第1147-1154页 * |
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Effective date of registration: 20200716 Address after: 056004 Hebei Province, Handan city Congtai District Fu Hebei Street No. 154 Applicant after: CHINA COAL DISTRICT HUASHENG HYDROGEOLOGICAL EXPLORATION Co.,Ltd. Address before: 056004 Hebei Province, Handan city Congtai District Fu Hebei Street No. 154 Applicant before: HYDROGEOLOGY BUREAU OF CHINA NATIONAL ADMINISTRATION OF COAL GEOLOGY |
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