大庆石油地质与开发2017，Vol.36Issue(6)：134-139,6.DOI:10.19597/J.ISSN.1000-3754.201701001
大液量注水吞吐技术在致密油藏水平井中的应用
APPLICATION OF MASSIVE WATERFLOODING HUFF-PUFF TECHNIQUE IN THE TIGHT OIL RESERVOIR FOR HORIZONTAL WELLS
摘要
Abstract
In the light of the development characteristics of the large-scale volume fracturing for the horizontal wells in tight oil reservoirs after the pressure depletion,the technique of massive waterflooding huff-puff was proposed,which can effectively complement the formation energy,enhance the production of the individual well and increase the economic benefit of the development.The technology was firstly defined and discussed in the following aspects:the mechanism,reservoir engineering,indoor test and numerical simulation etc.,and moreover the technical advantages were analyzed in the development of the tight oil reservoir.With the help of the pressure composition figures and the definition of the residual pressure of the injected water in the reservoir,the waterflooding huff-puff model was established and the critical parameters of the huff-puff were calculated,and furthermore the achievements were applied in the field.The obvious oil incremental and economic effects have been obtained for the pilot test,the oil production has enhanced by 4.5 t/d for the individual well,the formation pressure has increased by 9.3 MPa,the accumulated oil production has reached to 1 987 t,the input-output ratio is up to 1 ∶ 1.74 ～ 1 ∶ 4.06.The researches on the technique have provided the thinking and important technical support for the high-efficiency development of the tight oil reservoir by means of horizontal wells.关键词
大液量注水吞吐/致密油藏/渗吸作用/水平井Key words
massive waterflooding huff-puff/tight oil reservoir/imbibition action/horizontal well分类
能源科技引用本文复制引用
代旭..大液量注水吞吐技术在致密油藏水平井中的应用[J].大庆石油地质与开发,2017,36(6):134-139,6.基金项目
国家重大科技专项“大型油气田及煤层气开发”项目13“低渗—超低渗油藏有效开发关键技术”课题6“低渗、特低渗复杂油藏规模有效动用关键技术”(2017ZX05013006). （2017ZX05013006）
