深探井和超深探井钻井的难点分析和对策探讨

DIFFICULTY-ANALYSIS AND SOLUTION DISCUSSION FOR DEEP AND ULTRADEEP EXPLORATION WELL

王关清 陈元顿 周煜辉

Wang Guanqing Chen Yuandun Zhou Yuhui

中国石油天然气总公司 总公司石油勘探开发研究院

当前,勘探工作是我国陆上石油工业的重中之重。根据全国第二次油气资源评价,在深部地层有丰富的油气资源尚未探明,故今后深井和超深井的钻井工作量会有较大幅度的增加。因此,打好打快深探井和超深探井是陆上钻井工作者面临的光荣而又艰巨的任务。文中介绍了陆上石油深井钻井的基本情况,说明新区的深探井、超深探井钻井工作还不适应陆上石油工业当前发展的要求;分析了深探井钻井存在的工艺技术难点,对解决难点的对策进行了探讨,并提出了建议。

Exploration is of vital importance for onshore petroleum industry in China at present. In future deep and ultradeep wells will be increased by a bigger margin because rich oil and gas resources in deep formation have not been proved yet according to the second national oil and gas resource evaluation. So the onshore petroleum industry faces the arduous task of drilling deep and ultradeep exploration wells with high quality and short time. This paper introduced the basic situation of deep well drilling onshore, showed that deep and ultradeep exploration well drilling in new tracts could not meet the requirement of existing development with onshore petroleum industry. Analyzed the difficulties of deep exploration well drilling and discussed the solution for the difficulties and gave suggestions also.

10.3969/j.issn.1000-7393.1998.01.001