酸化压裂中酶技术的应用

Application of Enzyme Technology in Acidification and Fracturing

酸化、压裂技术对油气田增产增注有着重要作用,但压裂施工中,若不能使压裂液实现彻底破胶,那么该过程中遗留的残渣将会严重损害地层渗流条件,同时由于压裂液对环境造成的危害较大且施工可靠程度较低,常规压裂液很难达到理想效果。酶技术作为一种新兴技术已经被广泛运用于油气井酸化压裂过程之中。但酶技术在使用过程中还是存在部分局限性,其中主要包括效果欠佳以及腐蚀等问题。主要就酶技术在酸化压裂方面的应用展开阐述,并对酶技术未来发展情况提出了部分建议与期望。

Acidification and fracturing technology plays an important role in increasing production and increasing injection in oil and gas fields,but if the fracturing fluid can not completely break the glue in the fracturing,the residual residue in the process will seriously damage the seepage condition of the formation,at the same time,the damage caused by the fracturing fluid to the environment is larger and the reliability of the construction is low.The fracturing fluid is difficult to achieve the ideal effect.As a new technology,enzyme technology has been widely used in the acidizing and fracturing process of oil and gas wells.However,there are still some limitations in the use of enzyme technology,including poor effect and corrosion.In this paper,the application of enzyme technology in acid fracturing is discussed,and some suggestions and expectations for the future development of enzyme technology are put forward.