摘要
冀东油田油藏、地层、井网复杂,确定适合冀东油田地层特点的水平井最佳井身结构至关重要,压力系数和相关参数的确定是井身结构优化设计的重要基础。针对冀东油田不同区块复杂地层和油藏特性及井身结构设计中的关键事项,利用三压力剖面预测技术,分析出不同区块的三压力剖面分布情况,根据相关参数的确定原则、方法和冀东油田多年研究和钻井实践,得出了不同区块的3个压力系数分布范围及井身结构设计工程系数范围,为合理确定井身结构提供依据。基于以上设计基础,按照井身结构设计基本原则,利用井身结构设计的具体方法和步骤,设计出了适合冀东油田的最优水平井井身结构。
Accordance with formation characteristic of Jidong Oilfield with complex reservoirs, stratum and underground well network, finding optimal well structure suitable for horizontal well in Jidong Oilfield, is of great importance. Determination of pressure coefficient and related parameters is important basis for casing programming. Against complex characteristics of formation and reservoirs in different blocks of Jidong Oilfield and key instances of casing programming, distribution condition of three pressure profile in different blocks is analyzed by technology for prediction of three-pressure profile, and specific distribution range of three pressure coefficient and engineering coefficient range of casing programming are gained according to determination principle and method of relevant parameters, researches in many years and drilling practice, which provides basis for reasonable determination of well structure. Based on the above design, according to basic principle of casing programming, optimal well structure of horizontal well suitable for Jidong Oilfield is designed by specific method and procedure of casing programming.
出处
《石油钻采工艺》
CAS
CSCD
北大核心
2007年第z1期7-10,共4页
Oil Drilling & Production Technology
关键词
三压力剖面
相关参数
优化设计
原则
方法
three pressure profile
relevant parameters
optimum design
principle
method
