高温防漏型油层保护技术研究
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摘要
针对尼日尔Agadem油田部分油井地层温度高、开发过程中存在作业漏失问题,研究新型高温油溶性暂堵剂。利用正交实验结果,结合Mintab软件分析,确定了新型抗高温防漏失油层保护修井液配方。该技术抗温能力突破120℃,最高可达160℃,岩心渗透率恢复率达95%,具有抗温、防漏、低损害等特点,突破了现阶段防漏修井液抗温能力不强的瓶颈。
A new high temperature oil soluble temporary plugging agent was developed to solve the problem that there is leakage in some oil wells with high formation temperature in Agadem oilfield,Niger.The formulation of a new type of workover fluid which can can resist high temperature and prevent leakage and protect oil reservoir is determined by means of orthogonal experimental results and Mintab software.The workover fluid has the characteristics of high temperature resistance,leak prevention and low reservoir damage.Its high temperature resistance exceeds 120℃,up to 160℃,and the permeability recovery rate of cores can reach to 95%,which breaks through the bottleneck of the poor high temperature resistance of existing leakproof workover fluids.
A new high temperature oil soluble temporary plugging agent was developed to solve the problem that there is leakage in some oil wells with high formation temperature in Agadem oilfield,Niger.The formulation of a new type of workover fluid which can can resist high temperature and prevent leakage and protect oil reservoir is determined by means of orthogonal experimental results and Mintab software.The workover fluid has the characteristics of high temperature resistance,leak prevention and low reservoir damage.Its high temperature resistance exceeds 120℃,up to 160℃,and the permeability recovery rate of cores can reach to 95%,which breaks through the bottleneck of the poor high temperature resistance of existing leakproof workover fluids.
引文
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[9]李龙一,蒋媛媛.基于六西格玛设计的产品创新研究[J].科技管理研究,2010(11):182-186.
[10]左辉.基于MINTAB的剃齿工序质量控制[J].机械管理开发,2016(10):29-30.
[2]任强,刘俊军,方培林,等.可降解抗高温暂堵体系研究[J].石油化工应用,2015,34(12):42-44.
[3]郭元庆,崔俊平,杨小平,等.防漏型压井液研究与应用[J].石油钻采工艺,2005,27(S1):30-34.
[4]罗向东,罗平亚.屏蔽式暂堵技术在储层保护中的应用研究[J].钻井液与完井液,1992,9(2):19-27.
[5]王浩,赵燕.GS-高温暂堵剂的研制与应用[J].特种油气藏,2002,9(4):72-73,80.
[6]陈绪清,胡守志.油溶性暂堵剂YRC-1的性能及应用研究[J].西南石油大学学报(自然科学版),2009,31(5):139-142.
[7]张凤英,鄢捷年,杨光,等.新型油溶暂堵型无固相修井液的研制[J].天然气工业,2010,30(3):77-79.
[8]徐仲安,王天保,李常英,等.正交试验设计法简介[J].科技情报开发与经济,2002(5):148-150.
[9]李龙一,蒋媛媛.基于六西格玛设计的产品创新研究[J].科技管理研究,2010(11):182-186.
[10]左辉.基于MINTAB的剃齿工序质量控制[J].机械管理开发,2016(10):29-30.