摘要
林4断块为宝饶油田主力油藏，油层厚度较薄，主力油组油层厚度为3～5m，物性较差，属典型边际薄层低渗透油藏。采用直井开发无效益，但考虑到该区主力油层分布稳定，且直井具有一定生产能力，通过论证后采用水平井＋直井的开发方式，2005-2006年共完钻水平井6口，平均单井钻遇油层309．3m，目前水平井已全部投产，平均单井产油量15．6t／d，取得了较好的开发效果，实现了边际薄层低渗透油藏的有效开发。
Lin 4 Block is a main reservoir of Baorao Oilfield, a typical marginal stratified reservoir with low permeability, thin thickness of oil layer mainly of 3--5 m and bad physical property. As no profit can be obtained from the vertical well production, horizontal well plus vertical well were arranged and 6 horizontal wells had been drilled during 2005 to 2006, for there is some producing ability, and the main oil reservoir distribution is stable. It happened to meet 309.3 m oil layer every well with 15.6 t/d oil rate. This proves to be very effective in the development for marginal stratified reservoir with low permeability.
出处
《地质科技情报》
CAS
CSCD
北大核心
2009年第3期83-85,共3页
Geological Science and Technology Information
关键词
低渗透
水平井技术
薄层油藏
low permeability
horizontal well
stratified reservoir
