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| 1 | 高压油藏钻井过程中的压力控制显示文摘在高压油藏钻井过程中 ,为控制井底循环压力、减小风险 ,常规方法是采用过平衡压力钻井。过平衡压力钻井特别容易造成井口压力过高或钻井液密度过大。井口压力过高 ,对司钻人员及井口设备不利 ;钻井液密度过大增加了钻井成本。动态压力控制方法是针对高压油层钻井而开发的一种新技术。它是在油井内建立第二个环空 ,通过第二环空循环液体的摩擦压力损失来控制井底压力 ,它使低压头钻井和欠平衡动态钻井成为切实可行的方法。 | Robert A.Graham Peter J.C.Schermer 石道涵 王国斌 | 2002 | 国外油田工程2002,18,8: | 2 |
| 2 | Walled sedimentary basins of China显示文摘 | A. R.Carroll S. A.Graham M.E.Smith | 2010 | Basin Research2010,,: | 1 |
| 3 | Pharmacokinetics of a porcine insulin zinc suspension in diabetic dogs显示文摘 | P. A.Graham A. S.Nash Q. A.McKellar | 2008 | Journal of Small Animal Practice2008,,10: | 1 |
| 4 | From foredeep to orogenic wedge-top: The Cretaceous Songliao retroforeland basin, China显示文摘Songliao Basin,the largest Mesozoic intracontinental nonmarine basin in eastern China,initiated during the latest Jurassic as a backarc extensional basin;rifting failed and thermal cooling controlled subsidence through the early Late Cretaceous.Integrating 2-D and 3D reflection seismic and borehole data with regional geological studies,we interpret sedimentary sequence and structural patterns of the Coniacian-Maastrichtian fill of Songliao Basin as defining a retroforeland basin system developed after 88 Ma(marked by the T11 unconformity in the basin),including(1)significant increase in the thickness of the Nenjiang Formation eastward towards orogenic highlands of the Zhangguangcai Range and the convergent continental margin;(2)a shift of detrital provenance in the basin from north to southeast;and(3)propagation of E-W shortened structures,increasing eastward in amplitude,frequency,and degree of inversion toward the orogen.During latest Cretaceous,foreland basin fill progressively deformed,as the foredeep evolved to a wedge-top tectonic setting,marked by the basin-wide T04 unconformity within the upper Nenjiang Formation at 81.6 Ma.Much of the basin was brought into the orogenic wedge and eroded by the end of the Cretaceous.Late Jurassic/Early Cretaceous backarc rifting of uncratonized basement comprised of accreted terranes likely facilitated and localized the foreland.Synrift normal faults reactivated and extensively inverted as thrust faults are prominent in the eastern 1/3 of the basin,whereas folds developed above detachments in shaley early post-rift strata dominate the western 2/3 of the basin.Songliao foreland development likely was driven by changing plate dynamics and collision along the Pacific margin after 88 Ma. | Zhiqiang Feng Stephan A.Graham | 2023 | Geoscience Frontiers2023,14,3: | 1 |
| 5 | NEAR-INFRARED,BROAD-BAND SPECTRAL IMAGING OF THE HUMAN BREAST FOR QUANTITATIVE OXIMETRY:APPLICATIONS TO HEALTHY AND CANCEROUS BREASTS显示文摘We have examined ten human subjects with a previously developed instrument for near-infrared diffuse spectral imaging of the female breast.The instrument is based on a tandem,planar scan of two collinear optical fibers(one for illumination and one for collection)to image a gently compressed breast in a transmission geometry.The optical data collection features a spatial sampling of 25 points/cm2 over the whole breast,and a spectral sampling of 2 points/nm in the 650-900nm wavelength range.Of the ten human subjects examined,eight are healthy subjects and two are cancer patients with unilateral invasive ductal carcinoma and ductal carcinoma in situ,respectively.For each subject,we generate second-derivative images that identify a network of highly absorbing structures in the breast that we assign to blood vessels.A previously developed paired-wavelength spectral method assigns oxygenation values to the absorbing structures displayed in the second-derivative images.The resulting oxygenation images feature average values over the whole breast that are significantly lower in cancerous breasts(69±14%,n=2)than in healthy breasts(85±7%,n=18)(p<0.01).Furthermore,in the two patients with breast cancer,the average oxygenation values in the cancerous regions are also significantly lower than in the remainder of the breast(invasive ductal carcinoma:49±11%vs 61±16%,p<0.01;ductal carcinoma in situ:58±8%vs 77±11%,p<0.001). | YANG YU ANGELO SASSAROLI DEBBIE K.CHEN MARC J.HOMER ROGER A.GRAHAM SERGIO FANTINI | 2010 | Journal of Innovative Optical Health Sciences2010,3,4: | 0 |
| 6 | 斩获殊荣的高中生 曾因飓风“玛丽亚”而逃离波多黎各,现在这位费城高中生在垒球和生活方面都大放异彩显示文摘在飓风“玛丽亚”袭击家乡波多黎各之后,13岁的玛丽莎·洛佩兹-冈萨雷斯搬到费城。她那时一句英语也不会说。今年已经18岁的洛佩兹-冈萨雷斯最近赢得了“美国职业棒球大联盟”颁发的颇有声望的奖项。这可不是靠运气得来的,它主要是靠洛佩兹-冈萨雷斯培养出的人格--勇敢、善良、勤奋、聪明、坚强。 | Kristen A.Graham | 2023 | 空中英语教室(高级版.彭蒙惠英语)2023,,5: | 0 |
| 7 | Comments on ‘Enhanced piezoresistivity in Ni-silicone rubber composites’显示文摘This paper describes the accepted meaning of the term 'negative resistance' and its use in the literature, and discusses the features in the previously published data on QTC TM (market name of a metal-polymer composite) that show that the non-linear, hysteretic current voltage characteristics are not caused by Joule heating. The benefit of the high metal filler loading in QTC TM and other unique features of this composite are reviewed. | D.Bloor A.Graham P.J. Laughlin D.Lussey | 2010 | Chinese Physics B2010,19,1: | 0 |
| 8 | A red herring: An unusual case of pneumothorax显示文摘Dear editor,A 67-year-old Chinese man presented to our emergency department (ED) complaining of right-sided chest wall pain.He noticed these symptoms three hours prior to arrival. He denied any shortness of breath or recent injury. Past medical history was significant only for hypertension. Social history was significant for a history of smoking (40 packs per year). | Joseph H.Walline Koon-ho Cheung Priscilla P.Song Colin A.Graham | 2021 | World Journal of Emergency Medicine2021,12,2: | 0 |