石油学报 ›› 1995, Vol. 16 ›› Issue (1): 44-52.DOI: 10.7623/syxb199501007

• 地质勘探 • 上一篇    下一篇

一种钻前定量预测地层压力的方法

曾卫民1, 毛建萍2   

  1. 1. 渤海石油公司;
    2. 重庆石油学校
  • 收稿日期:1992-10-06 修回日期:1993-04-14 出版日期:1995-01-25 发布日期:2013-07-08
  • 作者简介:曾卫民,1982年毕业于西南石油学院勘探系.现为四川古乐山进出口公司储运部副经理.通讯处:四川省乐山市学道街30号.邮政编码:614000.

A METHOD TO PREDICT FORMATION PRESSURE QUANTITATIVELY BEFORE DRILING

Zeng Weimin1, Mao Jianping2   

  1. 1. Bohai Petroleum Corporation;
    2. Chongqing Petroleum School
  • Received:1992-10-06 Revised:1993-04-14 Online:1995-01-25 Published:2013-07-08

摘要: 钻前定量预测地层压力一直是油气勘探中的难题。以辽东湾地区为上要研究对象,利用声波时差,建立区域压实模式;用等效压实深度法并吸取声波时差检测地层压力的经验,在地震瞬时速度曲线上作钻前定量压力预测。经摸索和实践,取得了较满意的效果。此法简便易行,精度可靠。在钻井安全、降低成本、提高效益、预测产能上发挥较大作用,对区域异常高压及与油气藏的关系的研究,也将产生积极影响。

关键词: 辽东湾坳陷, 异常, 高压, 压力预测, 模式, 地震速度计算, 计算方法

Abstract: It is a difficult problem in oil and gas exploration to predict formtion pressure before drilling quantitatively. Easy and dependable method has long been a target for oilman to seekfor. Liaodong Gulf is studied as a main object to predict formation pressure quantitativelybefore drilling with seismic instantaneous velocity curve regional compaction model and velocity of sound wave equivalent compaction method are used along with personal experienceto determine formation pressure by the method of time difference of acoustic wave. A satisfactory result has been obtained.This method is simple,convenient and dependable. It givesfavorable effects for safe drilling,reducing costs,increasing economic benefit and predictingoutput,and is helpful in studying the regional abnormal pressure and its relations to oil andaccumulation.

Key words: depression of Liaodong Gulf, abnormal high pressure, model, calculation of seismic velocity, method of calculation