2009年12月28日,中国石油大学(北京)在读硕士齐成伟发表了带状油气藏中横向水平井和纵向双分支水平井的拟三维产能公式[1-3]。陈德民等人对带状油气藏中横向水平井拟三维产能公式在生产段完全穿透带状油气藏时的精度进行了理论分析,证实了带状油气藏中横向水平井拟三维产能公式在生产段完全穿透带状油气藏时具有相当高的预测精度[4]。 齐成伟公式是国内外首次出现的建立于带状油气藏的水平井产能预测公式,而以往的产能预测公式,如美国著名的Joshi公式、苏联著名的Борисов公式,均默认油气藏边界为圆形
[5-7]。梁峰等人证实蒋廷学公式和程林松公式、邹丹等人证实Joshi公式和Борисов公式,分别为齐成伟导出的圆形油气藏中辐射状分支水平井拟三维产能公式在生产段相接、分支数为1时的退化公式
[8-9]。
实际水平井近井地带的渗流场较为复杂且渗透率较低,渗流阻力较大
[10-13]。本文将深入研究并试图导出带状低渗透油气藏中纵向双分支水平井在不同完井方式下的产能公式,以提高水平井产能的预测精度。
1 带状油气藏中纵向双分支水平井的拟三维产能公式 带状油气藏中纵向双分支水平井的拟三维产能公式由齐成伟导出
[1,5],即:
(1)
公式(1)中,……
带状低渗透油气藏中纵向双分支水平井在不同完井方式下的产能公式【张烈辉】.pdf (1339 K) 下载次数:43 ,你所在用户组没有附件下载权限
Productivity Formulae of Longitudinal Bilateral Horizontal Wellsin Ribbon Shaped Reservoir on Different Well CompletionsZHANG Liehui
1 YANG Haolong
1,2 Dang Yongjie
3 GONG Ruxiang
4 XIONG Youming
5 CHEN Jun
1
(1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Sichuan Chengdu 610500; 2. Chongqing University of Science and Technology, Shapingba District of Chongqing 401331; 3. Safety Supervision Station of Oil Production Plant II in Qinghai Oilfield, Qinghai Haixi 816 400; 4. China Oilfield Services Ltd., Tanggu District of Tianjin 300450; 5. The Centre for Well Completion Techniques of Southwest Petroleum University, Sichuan Chengdu 610500)
Abstract: In order to predict productivity of longitudinal bilateral horizontal wells on different well completions in low permeability, ribbon shaped oil and gas reservoirs, the skin factors appeared during the process of drilling and well completion were ****yzed. QI-Chengwei’s formulae were promoted to productivity formulae of longitudinal bilateral horizontal wells in low permeability, ribbon shaped oil and gas reservoirs on the open-hole completion, slotted liner completion and gravel pack completion through equivalent flow resistance method.
Key worlds: low permeability; ribbon shaped reservoir; branched horizontal wells; QI-Chengwei; productivity formulae; slotted liner completion; gravel pack completion
★基金项目:本文受国家973计划“碳酸盐岩缝洞型油藏注水开发研究”(编号:2011CB201005)与国家杰出青年科学基金计划“油气藏渗流力学”(编号:51125019)联合资助。