摘要
龙虎泡油田L126井区为典型的低孔低渗油藏,经过多年开采综合含水率较高。通过对L126井区油藏三维地质建模及精细油藏描述,认为高Ⅲ3层孔隙度、渗透率、有效厚度、砂体连通性及剩余油含量均较高,适合作为水平井目的层。设计了L126-P14水平井,位于直井L124-14与L124-15之间,水平段长度440 m,水平位移787.74 m,地层倾角0.3°~0.5°,目的层标准层垂深1 699.0 m,完钻垂深1 849.6 m,钻遇层段2 067~2 503 m。油藏数值模拟结果表明,L126-P14水平井与周围直井相比产油量提升明显,验证了水平井设计的合理性。
Well Block L126 in Longhupao Oilfield is characterized by the typical oil reservoirs with the low porosity and low permeability.After years of the production,the composite water cut is rather higher.Through the 3D geological modeling and fine reservoir description for Well Block L126,the porosity,permeability,effective thickness,sandbody connectivity and remained oil of Layer GⅢ3 are more higher,so it is suitable to act as the target layer of the horizontal well.Horizontal Well L126-P14 is designed between Vertical Well L124-14 and Vertical Well L124-P15,the length of the horizontal well interval is 440 m,the horizontal displacement is 787.74 m,the stratigraphic dip is 0.3°-0.5°,the vertical depth of the standard level of the target layer is 1 699.0 m,the drilled vertical depth is 1 849.6 m,the penetrated intervals are from 2 067 m to 2 503 m.The achievements of the reservoir simulation show that comparing with the surrounding vertical wells,the incremental oil production of Horizontal Well L126-P14 is enhanced obviously,thus the rationality of the horizontal well design is well verified.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2016年第3期88-93,共6页
Petroleum Geology & Oilfield Development in Daqing
基金
中国石油化工股份有限公司"梨树断陷隐蔽油气藏分布规律与勘探目标评价"(P12025)
关键词
龙虎泡油田
高Ⅲ3层
地质建模
数值模拟
水平井设计
Longhupao Oilfield
Layer GⅢ3
geological modeling
numerical simulation
horizontal well design
