沁水煤层气田樊庄区块不同开采方式经济分析

ECONOMIC ANALYSIS OF VARIOUS EXPLOITATION WAYS IN FANZHUAN BLOCK OF QINSHUI COAL—BED GAS FIELD

我国煤层气资源丰富,但是绝大部分渗透率低。目前,国外低渗煤层主体开发技术主要有两种,一是直井射孔压裂技术,二是定向羽状水平井技术。文章对樊庄区块开发 3# 煤煤层气采用直井射孔压裂和定向羽状水平井技术设计的4套方案进行了经济评价,认为定向羽状水平井方案经济效益高,但国内没有应用羽状水平井开发煤层气的先例,风险较大。建议尽快开展定向羽状水平井先导性试验。直井压裂方案效益低于羽状水平井方案,但压裂工艺技术成熟,风险小。

Statistical analysis of Chinese petroleum technical periodicals and papers historically cited by El Compendex Web is conducted. The results show the amount of periodicals and papers cited by EI increase sharply from mid-1990s since Chinese petroleum technical periodical was first cited by El at 1985. But generally speaking, the number of Chinese petroleum technical periodicals cited by El Compendex Web is not large enough. Some periodicals are cited unstably. The number of periodicals and the amount of papers core-abstracted by El are even much less. The analysis results reflect in one side that Chinese petroleum science and technology research achieves dramatic progress in recent years, but the whole level needs to improve further more.