中原油田压裂配套技术及发展方向

Matching Fracture Technology and Reaching Direction of Zhongyuan Oilfield

针对中原油田油层埋藏深、高温低渗、构造复杂等特点,在压裂液方面进行了系列水基压裂液、清洁压裂液、油基压裂液的研究,并在压前保护及压后处理机理研究的基础上,研制了压裂预前置液及支撑裂缝处理剂。在压裂工艺技术中,阐述了重复压裂、大斜度井压裂、分层压裂、CO2泡沫压裂、区块整体压裂技术以及配套工艺,这些工艺技术作为中原油田主要开发手段得到了较大程度的应用,并取得了较好的效果。

According to the features of the deeply buried reservoirs, high temperature, low permeability and complicated structures in Zhongyuan Oilfield, we conduct a series of the developments to the water-based fracture fluid, the cleaning fracture fluid and the oil-based fracture fluid in fracture fluids, and develop the new prepads and the new fracture additives through researching the stimulation mechanism. In this paper, we also describe the re-fracturing, the high-angle well fracturing, the multiple fracturing, the CO_2 foam fracturing, the integrated fracturing technologies in tract and their related matching engineering, which are regarded as the effective developing techniques and are widely used in Zhongyuan oilfield.