CN109057753A - 油井解堵方法 - Google Patents
油井解堵方法 Download PDFInfo
- Publication number
- CN109057753A CN109057753A CN201810916894.7A CN201810916894A CN109057753A CN 109057753 A CN109057753 A CN 109057753A CN 201810916894 A CN201810916894 A CN 201810916894A CN 109057753 A CN109057753 A CN 109057753A
- Authority
- CN
- China
- Prior art keywords
- parts
- weight
- sodium
- oil pipe
- plugging
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 53
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- 239000003795 chemical substances by application Substances 0.000 claims abstract description 77
- 229920000642 polymer Polymers 0.000 claims abstract description 70
- 230000008676 import Effects 0.000 claims abstract description 60
- 230000007935 neutral effect Effects 0.000 claims abstract description 42
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 34
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000003129 oil well Substances 0.000 claims abstract description 24
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 17
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 17
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims abstract description 14
- 238000002360 preparation method Methods 0.000 claims abstract description 11
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- LPLVUJXQOOQHMX-UHFFFAOYSA-N glycyrrhetinic acid glycoside Natural products C1CC(C2C(C3(CCC4(C)CCC(C)(CC4C3=CC2=O)C(O)=O)C)(C)CC2)(C)C2C(C)(C)C1OC1OC(C(O)=O)C(O)C(O)C1OC1OC(C(O)=O)C(O)C(O)C1O LPLVUJXQOOQHMX-UHFFFAOYSA-N 0.000 claims description 28
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- FCBUKWWQSZQDDI-UHFFFAOYSA-N rhamnolipid Chemical compound CCCCCCCC(CC(O)=O)OC(=O)CC(CCCCCCC)OC1OC(C)C(O)C(O)C1OC1C(O)C(O)C(O)C(C)O1 FCBUKWWQSZQDDI-UHFFFAOYSA-N 0.000 claims description 14
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- 235000019832 sodium triphosphate Nutrition 0.000 claims description 13
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- QILXPCHTWXAUHE-UHFFFAOYSA-N [Na].NCCN Chemical compound [Na].NCCN QILXPCHTWXAUHE-UHFFFAOYSA-N 0.000 claims description 12
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- 229940074404 sodium succinate Drugs 0.000 claims description 12
- ZDQYSKICYIVCPN-UHFFFAOYSA-L sodium succinate (anhydrous) Chemical compound [Na+].[Na+].[O-]C(=O)CCC([O-])=O ZDQYSKICYIVCPN-UHFFFAOYSA-L 0.000 claims description 12
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- AKFRGHYHUILETL-UHFFFAOYSA-N 2-(1,2-dicarboxyethoxy)butanedioic acid;sodium Chemical compound [Na].OC(=O)CC(C(O)=O)OC(C(O)=O)CC(O)=O AKFRGHYHUILETL-UHFFFAOYSA-N 0.000 claims 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
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Abstract
Description
组别 | 解堵前渗透率(10<sup>-3</sup>μm<sup>2</sup>) | 解堵后渗透率(10<sup>-3</sup>μm<sup>2</sup>) | 溶垢率(%) |
实施例1 | 8.20 | 529.67 | 96.45 |
实施例2 | 8.20 | 526.53 | 94.89 |
实施例3 | 8.20 | 527.88 | 95.56 |
比较例1 | 8.20 | 281.69 | 53.69 |
比较例2 | 8.20 | 266.91 | 48.35 |
比较例3 | 8.20 | 271.04 | 52.77 |
组别 | 腐蚀速率g/(m<sup>2</sup>·h) |
实施例1 | 0.2901 |
实施例2 | 0.3215 |
实施例3 | 0.3086 |
比较例1 | 0.3277 |
比较例2 | 0.3194 |
比较例3 | 0.3204 |
组别 | 30min | 60min | 120min |
实施例1 | 8.5 | 9.2 | 10.0 |
实施例2 | 8.4 | 9.0 | 9.8 |
实施例3 | 8.5 | 9.1 | 10.0 |
比较例1 | 8.2 | 8.9 | 9.9 |
比较例2 | 8.1 | 8.9 | 9.9 |
比较例3 | 8.2 | 9.0 | 9.8 |
空白样 | 8.2 | 9.0 | 9.8 |
Claims (7)
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CN111394071A (zh) * | 2020-04-03 | 2020-07-10 | 中国石油天然气集团有限公司 | 一种页岩钻井主溶蚀剂及其制备和使用方法 |
CN111394071B (zh) * | 2020-04-03 | 2023-03-10 | 中国石油天然气集团有限公司 | 一种页岩钻井主溶蚀剂及其制备和使用方法 |
CN116285924A (zh) * | 2020-11-16 | 2023-06-23 | 西安石油大油气科技有限公司 | 一种油田采油地层中性解堵剂组合物及其制备方法 |
CN112664154A (zh) * | 2020-12-29 | 2021-04-16 | 成都北方石油勘探开发技术有限公司 | 一种过滤器及基于该过滤器的油井解堵方法 |
CN112940703A (zh) * | 2021-02-03 | 2021-06-11 | 中国石油化工股份有限公司 | 一种压裂液低温破胶剂及其制备方法 |
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