Development and Evaluation of a Compound Set Cement for Well Cementing
-
摘要: 对一种基于环氧树脂的合成水泥石技术进行了研究,通过研制不同密度的浆体,考察了浆体在不同温度下的可泵性、力学性能、抗污染性能、胶结强度以及清洗问题。研究结果表明,采用减轻剂(如玻璃微珠)或加重剂(如炭黑、microMax),并配套防沉降剂,可得到密度范围为0.8~1.80 g/cm3的合成水泥石;采用不同活性芳香胺类固化剂、固化促进剂及其组合,可实现合成水泥浆在45~125℃范围内的泵送要求;合成水泥石力学性能远好于基于橡胶粉改性的弹韧性水泥石;合成水泥浆抗油基钻井液污染可达30%。另外,合成水泥浆还能明显提高油井水泥的胶结强度;使用20%的乙醇水溶液,可较容易地清洗残留在器皿上的合成水泥浆。该合成水泥石是一种非常理想的油井封隔材料。Abstract: Cement slurry of different densities were prepared and studied on their pumpability, mechanical properties, contamination tolerance, bonding strength and cleaning at different temperatures. Compound set cement with densities ranging from 0.8 g/cm3 to 1.80 g/cm3 can be made by adding light weight agent or weighting agent and epoxy, combined with settling preventer. Using solidifying agents such as aromatic amines of different activity, and solidification accelerator to treat cement slurry, the cement slurry can be pumped at 45-125℃. The compound set cement has mechanical property much better than that of the elastic tough set cement modified with rubber powders. The compound set cement is resistant to oil base mud contamination, and has higher bonding strength. The residue compound cement slurry can be readily cleaned with 20% alcohol.
-
Key words:
- Epoxy /
- Elastic tough set cement /
- Compound set cement /
- Well cement
-
Young S,Chew A,Mettach S,et al. Thermo-settable cross-linked polymer system for optimization of wellbore stability and zonal isolation[R].OMC-2013-103,2013. Bosma M G R,Cormelissen E K, Reijrink P M T, et al. Development of a novel silicone rubber cement plugging agent for cost effective thru' tubing well abandonment[R]. SPE 39346. Jones P J,London B A,Tennison L B,et al. Unconventional remediation in the Utica shale using advanced resin technologies[R].SPE 165699. Urdaneta J A,Arroyave J M,Jones P. Novel gas shutoff resin system for well abandonment application in Colombia:a case history[R].SPE 169400. 陈平, 刘胜平, 王德中. 环氧树脂及其应用[M]. 化学工业出版社, 2013:39-42. Chen Ping,Liu Shengping,Wang Dezhong. Application of epoxy resin[M].Chemical industry press,2013:39-42. Carter L G,Member Aime,Evans G W. A study of cement-pipe bonding[R].SPE 764,1964. Morris K,Deville J P,Jones P. Resin-based cement alternatives for deepwater well construction[R].SPE 155613, 2012. -
点击查看大图
计量
- 文章访问数: 670
- HTML全文浏览量: 147
- PDF下载量: 228
- 被引次数: 0
下载:
