The invention relates to an elastic gel water plugging agent and a preparation method thereof. The utility model mainly solves the problems that the existing selective water plugging agent has large surface viscosity and poor plugging effect. It is characterized in that the components and the proportion by weight percentage are as follows: 2 acrylamide monomer 5%, 15%, 5 promoting gel inhibitor 0.05 0.15%, 0.3 colloid stabilizer 0.6%, crosslinking agent 0.3 0.6%, 1%, 0.2 retarder initiator 0.2 1%, 0.2 chelating agent 0.5% and the rest of water; the invention also provides a method for preparing elastic gel plugging agent, first respectively inhibitor hydroquinone monomethyl ether with 45 55 hot water will dissolve with water dissolved sodium persulfate initiator; then in turn according to the proportion of acrylamide monomer, promoting agent, colloid stabilizer, crosslinking agent, retarder, chelating agent is added into the water after dissolving, adding good dissolution inhibitor, finally adding initiator prepared products. The elastic gel water plugging agent has the advantages of small ground viscosity, high colloid strength, good colloid stability, long plugging effective period and good plugging effect.
【技术实现步骤摘要】
本专利技术涉及油田采油
中一种处理剂,尤其是一种弹性凝胶堵水剂及其制备方法。
技术介绍
目前油田油藏处于特高含水阶段,产液量大,水窜明显,主流线上水洗程度高,平面、层内层间矛盾突出,由于层内夹层分布不连续,实施机械堵水工艺无法有效封堵,急需进行化学堵水,封堵高压产液主力层,降低产液量,缓解平面矛盾。根据堵水剂对油层和水层的堵塞作用,化学堵水又可分为非选择性堵水和选择性堵水。非选择性堵水是指堵剂在油层中能同时封堵油层和水层的化学剂;选择性堵水是指堵剂只与水起作用,而不与油起作用,故只在水层造成堵塞而对油层影响甚微,是油田使用最为广泛的堵水剂之一。目前,现有选择性堵水剂存在地面粘度大,不易泵入,胶体强度低,胶体稳定性差,封堵有效期短,影响封堵效果。
技术实现思路
本专利技术在于克服
技术介绍
中存在的现有选择性堵水剂存在地面粘度大封堵效果差的问题,而提供一种弹性凝胶堵水剂。该弹性凝胶堵水剂,地面粘度小,胶体强度高,胶体稳定性好,封堵有效期长,封堵效果好。本专利技术还提供了一种弹性凝胶堵水剂的制备方法。本专利技术解决其问题可通过如下技术方案来达到:该弹性凝胶堵水剂,其组分及配比按重量百分比如下:丙烯酰胺单体2-5%、促胶剂5-15%、阻聚剂0.05-0.15%、胶体稳定剂0.3-0.6%、交联剂0.3-0.6%、缓凝剂0.2-1.0%、引发剂0.2-1.0%、鳌合剂0.2-0.5%、其余为水。所述的百分比是以弹性凝胶堵水剂的总重量为100%计。所述促胶剂为水玻璃,密度1.3-1.4g/cm3;阻聚剂为氢醌单甲醚;胶体稳定剂为无水亚硫酸氢钠;交联剂为甲叉基双丙烯酰 ...
【技术保护点】
一种弹性凝胶堵水剂,其特征在于:其组分及配比按重量百分比如下:丙烯酰胺单体2‑5%、促胶剂5‑15%、阻聚剂0.05‑0.15%、胶体稳定剂0.3‑0.6%、交联剂0.3‑0.6%、缓凝剂0.2‑1.0%、引发剂0.2‑1.0%、鳌合剂0.2‑0.5%、其余为水。
【技术特征摘要】
1.一种弹性凝胶堵水剂,其特征在于:其组分及配比按重量百分比如下:丙烯酰胺单体2-5%、促胶剂5-15%、阻聚剂0.05-0.15%、胶体稳定剂0.3-0.6%、交联剂0.3-0.6%、缓凝剂0.2-1.0%、引发剂0.2-1.0%、鳌合剂0.2-0.5%、其余为水。2.根据权利要求1所述的一种弹性凝胶堵水剂,其特征在于:所述促胶剂为水玻璃;阻聚剂为氢醌单甲醚;胶体稳定剂为无水亚硫酸氢钠;交联剂为甲叉基双丙烯酰胺;引发剂为过硫酸钠...
【专利技术属性】
技术研发人员:周东材,王映丽,
申请(专利权)人:大庆市杰森钻采助剂厂,
类型:发明
国别省市:黑龙江;23
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