首页> 外国专利> METHOD FOR PROCESSING BOTTOMHOLE ZONE OF FORMATION COMPOSED OF CARBONATE ROCKS WITH OIL RESOURCES COMPLICATED TO EXTRACT

METHOD FOR PROCESSING BOTTOMHOLE ZONE OF FORMATION COMPOSED OF CARBONATE ROCKS WITH OIL RESOURCES COMPLICATED TO EXTRACT

机译:提取含油量较高的碳酸盐岩地层底地层的处理方法。

摘要

FIELD: oil and gas extractive industry, in particular, possible use during processing of bottomhole zone of productive formation, composed of carbonate rocks, primarily of porous fractured reservoirs, with hard to extract oil deposits.;SUBSTANCE: method for processing bottomhole zone of formation composed of carbonate rocks with hard to extract oil deposits includes feeding a compound through tubing string into position interval of well filter, aforementioned compound containing hydrochloric acid with hydrocarbon solvent, for which diesel fuel is used, and emulsifier, with following extraction of reaction product of acid with bed rock. In aforementioned compound oil is used as emulsifier with content of tarry pyrobitumen substances within limits 15-20%, in volume 1,5-2,0% of total volume of mixture, with ratios of diesel fuel and hydrochloric acid being 25-35% and 65-75% respectively, while prior to injection of hydrochloric acid into mixture full agitation of oil in diesel fuel is performed first using hydro-dispersive device. Extraction of products of reaction of acid with bed rock is performed by means of swabbing or in accordance to depression-repression wave method.;EFFECT: creation of method for processing bottomhole formation zone using low-component accessible acidic emulsion, not inferior to known analogs in terms of efficiency.;2 cl, 1 ex
机译:领域:石油和天然气开采业,尤其是在由碳酸盐岩组成的生产地层井底区域的处理过程中可能使用的岩石,主要是多孔裂缝性储层,难以开采油藏。实质:处理地层井底区域的方法由碳酸盐岩组成,难以提取油层,包括将化合物通过管柱送入井滤器的位置区间,上述含有盐酸和烃溶剂的化合物(使用柴油的化合物)和乳化剂,然后提取反应产物。酸与基岩。在上述复合油中用作乳化剂,焦油焦土中物质的含量在混合物总体积的1.5-2.0%的范围内为15-20%,柴油和盐酸的比例为25-35%在将盐酸注入混合物中之前,首先使用水分散装置对柴油中的油进行充分搅拌,然后将其分别搅拌至65-75%。酸与基岩反应产物的提取是通过擦拭或按照压抑波法进行的;效果:创造了一种使用低组分可及的酸性乳状液处理井底地层的方法,该方法不逊于已知的类似物就效率而言。; 2 cl,1 ex

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