四川盆地泸州区块页岩气三维地震覆盖密度优选

来源 :天然气勘探与开发 | 被引量 : 0次 | 上传用户：Mr_Sunfox

【摘要】

：

页岩气藏高效开发依赖于高精度三维地震资料,而覆盖密度是决定三维地震资料品质和投资成本的关键参数。针对四川盆地泸州区块海相页岩气三维地震资料,在确保对比因素单一性的前提下,通过抽炮排列将覆盖密度由原始的52.5×10⁴道/km²逐步退化为6种不同覆盖密度的三维观测系统,并对其叠前偏移成果进行定性、定量评价以论证和优选覆盖密度参数;同时对比了相同覆盖密度下大面元高覆盖和小面元低覆盖两种观测系统的优劣。结果表明:①叠前偏移成像效果随着覆盖密度的增大而逐渐改善,信噪比也

【作者】

：

周晓冀杨智超杜文军王雪梅巫骏敬龙江

【机构】

：

中国石油东方地球物理勘探有限责任公司西南物探分公司

【出处】

：

天然气勘探与开发

【发表日期】

：

2021年2期

【关键词】

：

四川盆地页岩气三维观测系统覆盖密度参数退化叠前时间偏移

下载到本地 , 更方便阅读

下载此文赞助VIP

声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架

论文部分内容阅读

其他文献

Algorithm for extracting intersections in PPV space of filaments

A filament is an important structure for studying star formation,especially intersections of filaments which are believed to be more dense than other regions.Id

期刊

ISM:moleculesISM:structuremethods:data analysistechniques:image processing

A simulation experiment on the GM estimation for Comet 133P/Elst-Pizarro

In China's asteroid mission to be launched around 2025,(7968) 133P/Elst-Pizarro (hereafter 133P) will be the second target,after a visit to asteroid (469219) Ka

期刊

celestial mechanicsspace vehiclescomets:individual (133P/Elst-Pizarro)methods

射孔试气联作工艺在苏丹高GOR油井的应用

针对苏丹油田高GOR(气油比)、单井投产施工周期长的特点,对地面试气流程进行优化调整。①将测试管线直接连接至地面生产管线;②在做好井口和井筒准备工作后,通过抽汲作业将井筒上部掏空,再下入射孔和试气联作管柱;③配合使用RD安全循环阀、旁通短节、封隔器等测试工具,通过套管环空灌液和液压传导方式完成射孔枪的点火起爆和负压射孔;④经地面测试设备获取地层油气产出情况,制定相应的油气生产制度后,再由地面生产管线输往集输站进行投产。实践证明,此套工艺的地面试气流程设计合理,下入的射孔和试气联作管柱操作方便,缩短了作业周

期刊

苏丹油田高含气负压射孔试气联作工艺地面流程生产制度

Measurement of Hubble constant:were differences in secondary distance indicators apparent as early a

Different measurements of the Hubble constant (H0) are not consistent,and a tension between the CMB based methods and cosmic distance ladder based methods has b

期刊

CosmologySupernovaeHubble constant

Searching for AGN and pulsar candidates in 4FGL unassociated sources using machine learning

In the fourth Fermi Large Area Telescope source catalog (4FGL),5064γ-ray sources are reported,including 3207 active galactic nuclei (AGNs),239 pulsars,1336 una

期刊

gamma rays:galaxiesgalaxies:activemethods:statistical

Chempl:a playable package for modeling interstellar chemistry

Astrochemical modeling is needed for understanding the formation and evolution of interstellar molecules,and for extracting physical information from spectrosco

期刊

astrochemistrymethods:numericalISM:evolutionISM:molecules

Spin-down and emission variations for PSR J0742-2822

PSR J0742-2822 is known for its quasi-periodic changes in the observed pulse profile and spin-down rate.In this paper,we analyzed 13 years of timing data obtain

期刊

pulsars:generalstars:pulsarmethods:timing

Detection of a high-confidence quasi-periodic oscillation in radio light curve of the high redshift

In this work,we have searched for quasi-periodic oscillations (QPOs) in the 15 GHz light curve of the FSRQ PKS J0805-0111 monitored by the Owens Valley Radio Ob

期刊

active galactic nuclei:fiat spectrum radio quasar:individual:PKS J0805-0111gala

An approximately analytical solution method for the cable-driven parallel robot in FAST

The Five-hundred-meter Aperture Spherical radio Telescope (FAST) is the largest single-dish aperture telescope with a cable-driven parallel robot introduced to

期刊

telescopesmethods:analyticalinstrumentation:miscellaneous

Investigating variable stars in the open cluster NGC 1912 and its surrounding field

In this work,we studied the variable stars in the open cluster NGC 1912 based on the photometric observations and Gaia DR2 data.More than 3600 CCD frames in B,V

期刊

open clusters and associations:NGC 1912techniques:photometricstars:variables:g

四川盆地泸州区块页岩气三维地震覆盖密度优选

与本文相关的学术论文