摘要
水力压裂技术是有效开发低渗透油藏的主要技术措施,但经过水力压裂的采油井,在生产过程中由于种种原因可能导致水力裂缝闭合失效,增产效果越来越差。为此,人们研究了使裂缝转向的压裂问题。文章阐述了转向压裂的技术原理,建立了裂缝转向的数学模型,提出了裂缝转向重复压裂的选井选层原则。老君庙油田裂缝转向压裂矿场实施15口井,取得了较好的增产效果。裂缝转向压裂对于老油田综合治理、挖潜增产具有非常重要的意义。
Hydrofracturing technology is critical for effective development of low-permeability reservoirs.However,production wells after being hydrofractured may lead to inefficient hydrofracturing closure during the process of production,and stimulation results get more and more poor.To solve the problem,people carry out research on fracturing issues to change crack direction.This paper elaborates the technical principle of turnaround fracturing,sets up a mathematical model,and puts forward the principle of well selection for turnaround refracturing.Turnaround fracturing technology has been applied to 15 wells in Laojunmiao Oilfield and achieved better stimulation results.Turnaround fracturing is very significant to comprehensive management and increase of production in old oilfields.
出处
《石油科技论坛》
2011年第5期36-38,68,共3页
PETROLEUM SCIENCE AND TECHNOLOGY FORUM
关键词
老君庙油田
转向压裂
井层优选
裂缝监测
矿场应用
Laojunmiao Oilfield
turnaround fracturing
well selection
fracture monitoring
field application
