發(fā)布時(shí)間：2018-08-27 17:33

【摘要】：常規(guī)拖纜采集時(shí)其單邊激發(fā)、單邊接收的作業(yè)模式會(huì)導(dǎo)致采集方位角單一。在潛山或高陡傾角構(gòu)造區(qū)采用此方式采集地震數(shù)據(jù)時(shí),會(huì)造成一側(cè)照明不足、成像模糊。在分析常規(guī)拖纜采集作業(yè)局限性的基礎(chǔ)上,提出了拖纜前后源雙向同時(shí)激發(fā)采集技術(shù),該技術(shù)可有效提升高陡傾角構(gòu)造兩側(cè)的照明度。對(duì)比不同的實(shí)現(xiàn)方式,優(yōu)選輔助震源船追隨尾標(biāo)航行激發(fā)的作業(yè)模式,首次在國(guó)內(nèi)實(shí)現(xiàn)了拖纜前后源雙向同時(shí)激發(fā)采集。渤海油田JZ區(qū)塊實(shí)際應(yīng)用結(jié)果表明,與常規(guī)拖纜采集相比,該方法有效提高了潛山面的成像效果,提升了高陡傾角構(gòu)造區(qū)拖纜作業(yè)潛力;其技術(shù)流程可行,作業(yè)模式合理,對(duì)挖掘拖纜作業(yè)潛力有一定的借鑒意義。
[Abstract]:The single side excitation of conventional towing cable and the operation mode of unilateral receiving will lead to a single acquisition azimuth. When seismic data are collected by this method in buried hill or high steep dip area, the illumination of one side will be insufficient and the imaging will be blurred. Based on the analysis of the limitation of conventional towing cable acquisition, a bidirectional simultaneous excitation acquisition technique is proposed, which can effectively enhance the illumination on both sides of the high steep dip structure. Compared with the different implementation modes, the operation mode of auxiliary source ship to follow the tail mark navigation excitation is selected, and for the first time, the towing cable forward and back sources are simultaneously excited in both directions in our country. The practical application results of JZ block in Bohai Oilfield show that compared with conventional towing cable acquisition, this method can effectively improve the imaging effect of buried hill surface and enhance the potential of towing cable operation in high steep dip structural area, and its technical flow is feasible and its operation mode is reasonable. It can be used for reference to excavate the potential of towing cable operation.
【作者單位】： 中海石油(中國(guó))有限公司天津分公司;
【分類號(hào)】：P631.4

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