新疆石油地质

新疆石油地质 ›› 2004, Vol. 25 ›› Issue (6): 653-655.

• 油藏工程 • 上一篇    下一篇

异常高压复杂探井的试油工艺技术——以准噶尔盆地南缘霍10井为例

王维君1, 陈超峰1, 许江文1, 彭少涛2   

  1. 1.中国石油新疆油田分公司勘探公司,新疆 克拉玛依 834000;
    2.新疆石油管理局试油公司,新疆 克拉玛依 834000
  • 收稿日期:2004-04-29 修回日期:2004-06-12 发布日期:2021-01-14
  • 作者简介:王维君(1960-),男,云南红河洲人,高级工程师,石油地质。联系电话:0990-6889552

Production Test Technologies for Exploration Well with Abnormal High Pressure——An example of Huo-10 Well in southern margin of Junggar basin

WANG Wei-jun1, CHEN Chao-feng1, XU Jiang-wen1, PENG Shao-tao2   

  1. 1. Exploration Company, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China;
    2. Formation Test Company, Xinjiang Petroleum Administration Bureau, Karamay, Xinjiang 834000, China
  • Received:2004-04-29 Revised:2004-06-12 Published:2021-01-14

PDF

174

摘要： 在异常高压区, 当地层压力系数高达2.5时,试油工程难度将大大增加。在超高压情况下,如果待试井段在钻井过程中曾经有过大量高密度泥浆漏入,再加之储集层成岩性差,岩石胶结疏松,那么,测试过程中地层随时都有可能出.砂和返吐泥浆,发生测试管柱被堵或被卡的事故。一旦发生这种事故,油气井将很难修复,最终可能导致油气井报废,在总结准噶尔盆地霍10井试油工艺的基础上,提出了对异常高压复杂井的试油工艺技术,这些技术包括:抑制出砂技术、优化射孔技术、管柱受力分析、井口自动监控、安全封闭方式等,这对于类似复杂井的试油具有重要的参考意义。

关键词: 准噶尔盆地, 南缘, 异常高压, 探井, 试油, 工艺

Abstract: It would bring about greater engineering difficulty of formation test when formation pressure factor is up to 2.5. In an overpressured reservoir, if a hole interval to be tested was subjected to inflow of a large volume of high-density mud during its drilling process, integrated with poor diagenesis and unconsolidation,possible sand problem and mud return could take place in production testing, resulting in plugging or sticking troubles of test pipe string. Once the troubles happened, the well could hardly make a renovation and even be abandoned. Based on the production test process for Huo-10 Well in southern margin of Junggar basin, the technologies for production test of abnormal-high-pressure wells are proposed, including rejection of sand production, optimized perforation, string stress analysis, wellhead auto-monitoring and safe safety enclosed mode, etc. They are of significance for reference to the production or formation test of similar complex wells.

Key words: Junggar basin, southern margin, abnormal high pressure, exploration well, production test, formation test, technology

中图分类号: