[1]张振杰,苏进昌,刘玉娟,等.钻井地层厚度分析在油田开发中的应用[J].复杂油气藏,2021,14(04):69-73.[doi:10.16181/j.cnki.fzyqc.2021.04.011]
 ZHANG Zhenjie,SU Jinchang,LIU Yujuan,et al.Application of drilling formation thickness analysis in oilfield development[J].Complex Hydrocarbon Reservoirs,2021,14(04):69-73.[doi:10.16181/j.cnki.fzyqc.2021.04.011]
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钻井地层厚度分析在油田开发中的应用()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
14卷
期数:
2021年04期
页码:
69-73
栏目:
油气开发
出版日期:
2021-12-25

文章信息/Info

Title:
Application of drilling formation thickness analysis in oilfield development
作者:
张振杰苏进昌刘玉娟刘洪洲瞿朝朝
中海石油(中国)有限公司天津分公司,天津 300459
Author(s):
ZHANG ZhenjieSU JinchangLIU YujuanLIU HongzhouQU Zhaozhao
CNOOC Tianjin Branch,Tianjin 300459,China
关键词:
地层真厚度地层视垂厚铅直厚度储量估算调整井
Keywords:
true stratigraphic thicknessformation apparent vertical depthvertical thicknessreserve estimationadjustment well
分类号:
TE327
DOI:
10.16181/j.cnki.fzyqc.2021.04.011
文献标志码:
A
摘要:
随着渤海油田开发程度的不断深入,油田的井型越来越多样化。受地层倾角及井斜角的影响,分析不同井型之间钻井地层厚度差异,不仅有助于储层精细研究,同时对后续的储量估算以及随钻调整都有重要意义。在综合考虑地层倾角、井斜角和井轨迹在地层钻进方向因素的情况下,建立了5种井型与地层组合模式。以顺地层方向钻进且储层分布相对稳定的层状构造油藏为例,定量分析了在不同的地层倾角、井斜角以及井轨迹水平投影与地层倾向夹角条件下地层视垂直厚度与铅直厚度间的差异。结果表明,在相同的井轨迹水平投影与地层倾向夹角下,当地层倾角较小时,井斜角越小,地层视垂直厚度与铅直厚度差值越小;当地层倾角较大时,井斜角越大,两者差值也越大,且井轨迹与岩层倾向夹角为0°时两者差值最大。通过分析两者间的差异,为J油田储量估算、调整井研究及井网部署提供了有益的参考。
Abstract:
With the deepening of the Bohai Oilfield’s development,the well types of the oilfield are becoming more and more diversified. Due to the influence of the formation dip angle and the well deviation angle,the analysis of the difference in the thickness of the drilling formation between different well types are not only helpful for the fine research of reservoir,but also have great significance for subsequent reserves estimation and adjustment while drilling. Based on the comprehensive consideration of the formation dip angle,well deviation angle,and well trajectory in the formation drilling direction,five well types,and formation combination models were established.Taking a stratified structure reservoir drilled along the formation direction with relatively stable reservoir distribution as an example,the difference between the apparent vertical depth and the vertical thickness of the formation was analyzed quantitatively under different formation dip angles,well deviation angles,and angles between the horizontal projection of well trajectory and formation dip. The results show that under the same angle between the horizontal projection of well trajectory and formation dip when the formation dip angle is smaller,the smaller the well deviation angle,the smaller difference between apparent vertical depth and the vertical thickness. When the formation dip angle is larger,the larger the well deviation angle,the larger difference between the two,and the difference between the two is the largest when the angle between the well track and the strata dip is 0°. By analyzing the differences between them,it provides a useful reference for the reserve estimation,adjustment well research,and well pattern deployment of J Oilfield.

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备注/Memo

备注/Memo:
收稿日期:2021-02-18;改回日期:2021-05-16。
第一作者简介:张振杰(1986—),硕士,工程师,主要从事油气田开发地质方面的研究工作。E–mail:zhangzhj200608278@126.com。
基金项目:国家科技重大专项课题“渤海油田加密调整及提高采收率油藏工程技术示范”(2016ZX05058-001)。
更新日期/Last Update: 1900-01-01