SU1669969A1 - Method of treating drilling mud - Google Patents
Method of treating drilling mud Download PDFInfo
- Publication number
- SU1669969A1 SU1669969A1 SU894728074A SU4728074A SU1669969A1 SU 1669969 A1 SU1669969 A1 SU 1669969A1 SU 894728074 A SU894728074 A SU 894728074A SU 4728074 A SU4728074 A SU 4728074A SU 1669969 A1 SU1669969 A1 SU 1669969A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- starch reagent
- drilling fluid
- alkaline
- drilling
- starch
- Prior art date
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 7
- 229920002472 Starch Polymers 0.000 claims abstract description 15
- 235000019698 starch Nutrition 0.000 claims abstract description 15
- 239000008107 starch Substances 0.000 claims abstract description 15
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 13
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 239000000654 additive Substances 0.000 claims abstract description 6
- 230000000996 additive effect Effects 0.000 claims abstract description 6
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 4
- 230000002255 enzymatic effect Effects 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims description 4
- 229910000278 bentonite Inorganic materials 0.000 claims 1
- 239000000440 bentonite Substances 0.000 claims 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims 1
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 abstract description 7
- 238000002156 mixing Methods 0.000 abstract description 3
- 238000011010 flushing procedure Methods 0.000 abstract description 2
- 239000004615 ingredient Substances 0.000 abstract description 2
- 150000003839 salts Chemical class 0.000 abstract description 2
- 239000000725 suspension Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 2
- ITHCSGCUQDMYAI-ZMIZWQJLSA-N 2-carboxy-D-arabinitol 1,5-bisphosphate Chemical compound OP(=O)(O)OC[C@@H](O)[C@@H](O)[C@](O)(COP(O)(O)=O)C(O)=O ITHCSGCUQDMYAI-ZMIZWQJLSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 102100021486 Protein S100-G Human genes 0.000 description 1
- 101710122252 Protein S100-G Proteins 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000017 hydrogel Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- KYKFCSHPTAVNJD-UHFFFAOYSA-L sodium adipate Chemical compound [Na+].[Na+].[O-]C(=O)CCCCC([O-])=O KYKFCSHPTAVNJD-UHFFFAOYSA-L 0.000 description 1
- 239000001601 sodium adipate Substances 0.000 description 1
- 235000011049 sodium adipate Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
Изобретение относитс к бурению нефт ных и газовых скважин и предназначено дл промывки ствола скважины. Цель - улучшение технологических свойств бурового раствора за счет снижени ферментативного разложени крахмального реагента. Перед введением крахмального реагента в буровой раствор его смешивают со щелочной добавкой. В качестве щелочной добавки используют щелочной сток производства капролактама в количестве 0,5 - 2,0 к 1 мас.ч. крахмального реагента. Последний ввод т в буровой раствор в количестве не менее 0,5 мас.%. Концентрационные пределы ввода ингредиентов при реализации способа выбраны, исход из возможности перемешивани суспензии, ее текучести, эффективности действи . Способ обеспечивает получение солестойких буровых растворов, повышение устойчивости ствола скважины. 1 табл.The invention relates to the drilling of oil and gas wells and is intended for flushing the wellbore. The goal is to improve the technological properties of the drilling fluid by reducing the enzymatic decomposition of the starch reagent. Before introducing starch reagent into the drilling fluid, it is mixed with an alkaline additive. As an alkaline additive, an alkaline drain of caprolactam production in the amount of 0.5-2.0 to 1 wt.h. starch reagent. The latter is introduced into the drilling fluid in an amount of at least 0.5 wt.%. The concentration limits for the input of ingredients in the implementation of the method are selected, based on the possibility of mixing the suspension, its flowability, and the effectiveness of the action. The method provides obtaining salt-resistant drilling fluids, improving the stability of the wellbore. 1 tab.
Description
Изобретение относитс к бурению нефт ных и газовых скважин, в частности к промывке ствола скважины.The invention relates to the drilling of oil and gas wells, in particular to the washing of a well bore.
Цель изобретени - улучшение технологических свойств бурового раствора за счет снижени скорости ферментативного разложени крахмального реагента.The purpose of the invention is to improve the technological properties of the drilling fluid by reducing the rate of enzymatic decomposition of the starch reagent.
Предлагаемый способ включает смешение крахмального реагента со щелочной добавкой перед введением его в буровой раствор, причем в качестве щелочной добавки используют щелочной сток производства капролактама в количестве 0,5 -2,0 мае ч. к 1 мае.ч. крахмального реагента (на сухое вещество), крахмальный реагент ввод т в буровой раствор в количестве не менее 0,5 мас.%.The proposed method involves mixing the starch reagent with an alkaline additive before introducing it into the drilling fluid, and an alkaline drain used in the production of caprolactam in an amount of 0.5-2.0 May hours to 1 wt. Hour is used as an alkaline additive. starch reagent (dry matter), starch reagent is introduced into the drilling fluid in an amount of at least 0.5 wt.%.
Щелочной сток производства капролактама (ЩСПК) используют в сухом виде или вAlkaline effluent from caprolactam (ASCV) is used dry or in
виде40%-ного раствора. В состав 40%-ного раствора входи г, мас.%: Натриевые соли органических кислот (в пересчете на адипинат натри )40% solution. The composition of the 40% aqueous solution includes g, wt.%: Sodium salts of organic acids (in terms of sodium adipate)
Не менее 30Not less than 30
СмолаНе менее 9ResinNot less than 9
Свободна щелочьНе менее 2Alkaline freeNot less than 2
ВодаОстальноеWaterEverything
Водородный показатель 40%-ного раствора 10,0-10,5, плотность - 1170-1178 кг/м .Hydrogen indicator of 40% solution 10.0-10.5, density - 1170-1178 kg / m.
Пример 1. В 437,5 г воды ввод т 62,5 г 40%-ного водного раствора ЩСПК, добавл ют 50 г крахмала и размешивают (0.5:1).Example 1. Into 437.5 g of water, 62.5 g of a 40% aqueous solution of CABP was added, 50 g of starch was added and stirred (0.5: 1).
Пример 2. В 450 г воды ввод т 50 г сухого ЩСПК, затем добавп ют 50 г крахмала и тщательно размешивают в течениеExample 2. In 450 g of water, 50 g of dry AAC are added, then 50 g of starch are added and thoroughly stirred for
ОABOUT
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20-30 мин. Полученной смесью обрабатывают буровой раствор (1 1).20-30 min. The resulting mixture is treated with drilling mud (1 1).
Пример 3. В 250 г воды ввод т 750 г 40%-ного водного раствора ЩСПК и 50 г крахмала (2:1).Example 3. In 250 g of water, 750 g of a 40% aqueous solution of SCHSPK and 50 g of starch (2: 1) are introduced.
Пример 4. В 450 г воды раствор ют 10 г гидроксида натри , затем добавл ют 50 г крахмала и тщательно размешивают в течение 20-30 мин. Полученной смесью обрабатывают буровой раствор.Example 4. In 450 g of water, 10 g of sodium hydroxide are dissolved, then 50 g of starch are added and thoroughly stirred for 20-30 minutes. The resulting mixture is treated with drilling mud.
Эффективность действи реагента проверена на трех типах буровых растворов: безглинистом (гидрогель магни ), глинистом минерализованном и пресном.The effectiveness of the reagent was tested on three types of drilling fluids: non-clayey (magnesium hydrogel), mineralized clay and freshwater.
В таблице представлены результаты испытаний .The table presents the test results.
Концентрационные пределы ввода ингредиентов при реализации способа выбраны , исход из возможности перемешивани суспензии, ее текучести, эффективности действи .The concentration limits for the input of ingredients in the implementation of the method are selected, based on the possibility of mixing the suspension, its flowability, and the effectiveness of the action.
Эффективность действи реагента по времени провер ли при перемешивании в течение 5 ч (по аналогии циркул ции бурового раствора при промывке скважины).The effectiveness of the reagent was tested over time with stirring for 5 hours (by analogy with the circulation of the drilling fluid when flushing the well).
Ферментативное разложение оценивали по разнице свойств свежеприготовленных буровых растворов и после их выдержки при комнатной температуре в течениеEnzymatic decomposition was assessed by the difference in the properties of freshly prepared drilling fluids and after they were kept at room temperature for
5 сут.5 days
Предлагаемый способ обеспечивает получение солестойких буровых растворов , повышение устойчивости ствола скважины .The proposed method provides for obtaining salt-resistant drilling fluids, improving the stability of the wellbore.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU894728074A SU1669969A1 (en) | 1989-08-07 | 1989-08-07 | Method of treating drilling mud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU894728074A SU1669969A1 (en) | 1989-08-07 | 1989-08-07 | Method of treating drilling mud |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1669969A1 true SU1669969A1 (en) | 1991-08-15 |
Family
ID=21465330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU894728074A SU1669969A1 (en) | 1989-08-07 | 1989-08-07 | Method of treating drilling mud |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1669969A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2109032C1 (en) * | 1996-06-04 | 1998-04-20 | Малое внедренческое предприятие "Экобур" | Method for inhibiting ferment-assisted decomposition of polysaccharides in drilling fluids |
-
1989
- 1989-08-07 SU SU894728074A patent/SU1669969A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Булатов А.И. и др. Справочник по промывке скважин. М.:Недра, 1984, с.107-108. Р занов Я.А. Справочник по буровым растворам. М.: Недра, 1979, с.80-82. * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2109032C1 (en) * | 1996-06-04 | 1998-04-20 | Малое внедренческое предприятие "Экобур" | Method for inhibiting ferment-assisted decomposition of polysaccharides in drilling fluids |
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