SU628293A1 - Composition for removing gypsum deposit - Google Patents
Composition for removing gypsum depositInfo
- Publication number
- SU628293A1 SU628293A1 SU772489300A SU2489300A SU628293A1 SU 628293 A1 SU628293 A1 SU 628293A1 SU 772489300 A SU772489300 A SU 772489300A SU 2489300 A SU2489300 A SU 2489300A SU 628293 A1 SU628293 A1 SU 628293A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- composition
- gypsum
- removing gypsum
- gypsum deposit
- deposit
- Prior art date
Links
Description
Изобретение огносигс к с сгавам дл расгворени гипсосодержшдкх огложений в нефтепромысловом обс удовании и в приза- бойней зоне нефт ного пласта. Известен состав дл удалени отл6ж&ний гипса, который приготавливаетс на поверхности из пер.еоьцценного гипсового раствора и раствора поваренной соли, Опг нако такой состав требует больших затрат и, кроме того, полностью не раствор ет гипс.The invention of fire ogosigs for the formation of gypsum-containing deposits in the oil field observatory and in the bottom zone of the oil reservoir. A known composition for the removal of gypsum, which is prepared on the surface from a first-rate gypsum solution and a salt solution. This composition is costly and, moreover, does not completely dissolve the gypsum.
Известен также состав дл растворени гипса, включающий динатриевую соль эти пендиаминтетрауксусной кислоты ц воду, Однако он обладает сравнительно низкой раствор ющей способностью, что не обеопечиваег полного растворени отложений гипса за одну обработку.A composition for dissolving gypsum, including the disodium salt of these penediamine tetraacetic acid and water, is also known. However, it has a relatively low dissolving capacity, which is not the case for the complete dissolution of gypsum deposits in one treatment.
Цель изобретени - повышение раствор ющей способности состава и обеспечо ние полного растворени отложений гипса.The purpose of the invention is to increase the dissolving ability of the composition and ensure complete dissolution of gypsum deposits.
Это достигаетс тем, что предлагаемый состав дополнительно содержит гидроокись натри гфн следующем сх втнощении компонентов , вес. % :This is achieved by the fact that the composition according to the invention additionally contains sodium hydroxide gfn, the following sk in the composition of components, weight. %:
Динатриева оопь этилвндиаминтетрауксусной кислоты 9,1-23,1 П1дроокись натри 0,9-9,1Disodium oopyl ethyl diamine tetraacetic acid 9.1-23.1 Sodium hydroxide 0.9-9.1
Вода.Остальное.Water.The rest.
В процессе лаборатх рных исследований получены составы (1-5) с различным содержанием динатриевой соли этиленхшаминттрауксусной кислоты (тркпона Б) и гилpooKHCti натри , препсгавпе ные в габл. 1.In the process of laboratory studies, compounds (1–5) with different contents of ethylenechamine tract acetic acid (disodium salt) disodium salt (sodium B) and sodium hydrochloride, were prepared in gabl. one.
ТаблицаTable
3 4 5 В каждый состав добавлена Эффективность растворени определ ют по количеству растворившегос гипса при воздействии полученными составами на порошкообразные и кусковые образцы гипсосодержащих отложений, а та;оке на загипсованные отрезки труб. Указанные о&разцы шпсосодержащих отложений предО ,93 4 5 Added to each composition. The dissolution efficiency is determined by the amount of dissolved gypsum when exposed to powdered and lumpy specimens of gypsum-containing deposits, and the same, applied to the plastered sections of pipes. Specified on & spp containing sediments, 9
2,542.54
7,7 1ОО%. варительно просушивают и взвешивают, а затем растворшот в пригоговлекном составе иа расчета 5О мл состава на 1 г образца гипса. Результаты испытаний приведены в табл, 2. Таблица 27.7% OOO. It is dried and weighed visually, and then the solution in the pretreatment composition is calculated as 5O ml of the composition per 1 g sample of gypsum. The test results are shown in Table 2. Table 2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772489300A SU628293A1 (en) | 1977-05-24 | 1977-05-24 | Composition for removing gypsum deposit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772489300A SU628293A1 (en) | 1977-05-24 | 1977-05-24 | Composition for removing gypsum deposit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU628293A1 true SU628293A1 (en) | 1978-10-15 |
Family
ID=20710346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772489300A SU628293A1 (en) | 1977-05-24 | 1977-05-24 | Composition for removing gypsum deposit |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU628293A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2688992C1 (en) * | 2017-12-25 | 2019-05-23 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | Composition for removal of deposits of inorganic salts in well (versions) |
-
1977
- 1977-05-24 SU SU772489300A patent/SU628293A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2688992C1 (en) * | 2017-12-25 | 2019-05-23 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | Composition for removal of deposits of inorganic salts in well (versions) |
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