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| 涠洲12-1油田中块低压储层保护研究 | |
| 引用本文： | 罗健生,鄢捷年,方达科,孟尚志,张峙. 涠洲12-1油田中块低压储层保护研究[J]. 钻井液与完井液, 2006, 23(4): 16-20 |
| 作者姓名： | 罗健生 鄢捷年 方达科 孟尚志 张峙 |
| 作者单位： | 1. 中海油服技术中心,北京,燕郊 2. 中国石油大学(北京)北京,昌平 3. 中海石油(中国)有限公司湛江分公司,广东,湛江 |
| 摘 要： | 通过分析和评价涠洲12-1油田中块原修井液对储层产生损害的影响因素,确定了防止储层损害的有效措施和方法,即通过在修井液中加入表面活性剂CZZ和WPD来降低水锁产生的损害,并评价了2种表面活性剂降低油/水界面张力的能力、配伍性、抗温性以及乳化性。同时对易漏失的低压储层开展了改进型修井液技术研究,包括暂堵剂的优选、性能评价、储层保护研究、解堵试验评价、与地层流体配伍性评价和现场施工工艺研究,并提出了解除损害的有效方法。 |
| 关 键 词： | 低压储层 修井液 水锁 临时性封堵 |
| 文章编号： | 1001-5620(2006)04-0016-05 |
| 修稿时间： | 2005-12-09 |
Low pressure reservoirs protection in the middle block of WZ12-1 Oilfield |
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| LUO Jian-sheng,YAN Jie-nian,FANG Da-ke,MENG Shang-zhi,ZHANG Zhi. Technical Center,CNOOC,Yanjiao ,China. Low pressure reservoirs protection in the middle block of WZ12-1 Oilfield[J]. Drilling Fluid & Completion Fluid, 2006, 23(4): 16-20 | |
| Authors: | LUO Jian-sheng YAN Jie-nian FANG Da-ke MENG Shang-zhi ZHANG Zhi. Technical Center CNOOC Yanjiao China |
| Affiliation: | LUO Jian-sheng,YAN Jie-nian,FANG Da-ke,MENG Shang-zhi,ZHANG Zhi. Technical Center,CNOOC,Yanjiao 065201,China |
| Abstract: | Influence factors of the original workover fluid on the formation damage in the Middle Block of WZ12-1 oilfield was determined, and effective solutions were proposed. Surfactants CZZ and WPD was found to reduce the formation damage induced by water locking. The two surfactants were evaluated in surface tension,compatibility,temperature resistance and emulsification.At the same ti me,the modifiedworkover fluid was developed which was available tothelow-pressure andleaking reservoir.Furthermore,the effective solution was proposed to remove the formation damage. |
| Keywords: | lowpressure reservoir workover fluids water locking temporary plugging |
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