第39参第5期 2017年9月
石油钻采工艺
OIL DRILLING & PRODUCTION TECHNOLOGY
文章编号：10007393(2017)05061106
DOI:10.13639/j.odpt.2017.05.015
Vol. 39 No. 5 Sep.2017
别古庄油田京11断块油藏三元复合体系配方优化
唐先荣任红梅张宏祖莉华柏洁王洪涛
中国石华北油田分公司勘探开发研究院
引用格式：唐先荣，任红梅，张宏，祖莉华，柏洁，王洪涛.别古庄油田京11断块油藏三元复合体系配方优化[J】.石油钻采工艺,2017,39(5):611-616
摘要：针对华北别古庄油田京11断块油藏储集层黏土含量高(29%)、地层原油黏度低（11.0mPa*s)、酸值低（0.28 mgKOH/g原油）、油藏温度低（54℃）、水驱采收率高（>50%）等特点，优化出造合该油藏的三元复合体系：1500mg/L聚合物 J4+3000mg/L表面活性剂ES+12000mg/L碳酸钠。开展了该复合体系热稳定性、老化、吸附等评价实验。结果表明，体系老化90d和天然岩心砂三次吸附后，热稳定性较好（黏度保持率为50.6%)，仍能达到10mN/m超低界面张力。采用高低渗造率双管模型，开展了老化前后复合体系驱油实验对比研完。在综合含水90%时，改注0.3PV未老化复合体系，综合采收率提高 31.1百分点；改注0.3PV老化90d后的三元复合体系，烯合采收率提高22.2百分点，比老化前降低8.9百分点，说明三元复合体系老化后对驱油效果有较大影响。分析发现体系老化后黏度降低较多、界面张力升高，是乎致驱油效率下降的原圈。研究结累对今后体系优化具有一定指导作用，体系优化中分别测定不同体系老化前后的黏度和界面张力，根据其变化情况即可最终优化出较佳的复合驱油体系。
关键词：别古庄油田；京11断块油藏；三元复合体系；配方优化；热稳定性；界面张力；吸附；老化；驱油效率
中图分类号：TE357
文献标识码：A
Optimizationofalkaline-surfactant-polymerfloodingsystem of Jing11block
in Bieguzhuang oil field
TANG Xianrong,REN Hongmei, ZHANG Hong,ZU Lihua, BAI Jie, WANG Hongtao
Research Irstiarfe of Exploration and Development, Huabei Oifield Company, PefroChina, Rengiu 062552, Hebei , China
Citation: TANG Xianrong, REN Hongmei, ZHANG Hong, ZU Lihua, BAI Jie, WANG Hongtao. Optimization of alkaline- sur-( o ooa oap [ a o ea o ass poo aod e 611-616.
Abstraet: Jing 11 block in Bieguzhuang oil field has the characteristics such as high clay content(29%) , low crude oil viscosity(11 mPa - s) , low acid value(0. 28 mgKOH/g crude oil), low reservoir temperature( 54 °C), high water flooding recovery(>50%). An alka line- surfactant- polymer flooding system which contains 12 000 mg/L of sodium carbonate, 3 000 mg/L of ES surfactant and1500mg/L of J4 polymer was optimized base on those characteristics. The thermal stability, low inter-facial tension as well as anti-adsorption abil-ity of the system were explicitly investigated. The results showed that the system exhibited good thermal stability (viscosity retention rate was 50. 6 %) and the interfacial tension was still in ultra low levels after 90 days of ageing and three times of adsorption on the oil sands. The flooding experiments of the unaged and aged alkaline/surfactant/polymer system (ASP) were performed on heterogeneous double-tube sand pack models respectively. The experimental data showed that with a 90-percent cut in water, 31. 1% additional oil was produced by injecting 0. 3 pore volume of the unaged flooding system. Under the same operational condition, 22. 2 % additional oil was
基金项目：中国石油天然气股份有限公司重大科技专项“华北油田持续有数穗产勘探开发关键技术研究与应用"（编号2017E-15)。
第一作者：唐先荣，高级工程师，主要从事油气田开发实验研究工作。通讯地址：(062552)河北省任丘市建设路华北油田勘探开发研究院
电话; 0317-2711479。E-mail; yjy_txr@petrochina.com.cr
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