Results 41 to 50 of about 135 (92)

RESULTS OF APPLYING THE METHODOLOGY FOR THE QUANTITATIVE ASSESSMENT CONFIRM THE PREDICTION OF THE 3D MODELFOR HORIZONTAL SECTION OF WELLS

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2017
The article discusses results of the use methodology for quantification of prediction of the 3D model for geosteering. This methodology tested for 90 wells with horizontal completion.
R. M. Bembel, I. A. Schetinin
doaj   +1 more source

Logging evaluation methods of low-organic matter fault-block shale oil in the Subei Basin and their application [PDF]

open access: yesYouqicang pingjia yu kaifa
The Subei Basin is characterized by a complex structure and well-developed faults. The shale in the second member of the Funing Formation has relatively low organic matter abundance, with a total organic carbon (TOC) generally below 1.5%.
QIAN Shiyou, YANG Zhiqiang, XU Chen
doaj   +1 more source

Logging-while-drilling azimuthal electromagnetic measurements for high-resistivity coal seams

open access: yesMeitian dizhi yu kantan
Objective and MethodTo determine the boundary detection capability of logging-while-drilling (LWD) electromagnetic azimuthal measurements for high-resistivity coal mines, this study simulated geosignal responses under varying operating frequencies ...
Weina ZHAO   +3 more
doaj   +1 more source

Shale gas sweet spot identification and precise geo-steering drilling in Weiyuan Block of Sichuan Basin, SW China

open access: yesPetroleum Exploration and Development, 2016
Based on drilling and production test data and the geological, geochemical, geophysical and rock mechanics achievements of Weiyuan Block of Sichuan Basin, “sweet spots” of shale gas were determined and geosteering technology was tested in drilling the ...
Naizhen LIU, Guoyong WANG
doaj   +1 more source

Current status and future trend of research on underground borehole measurement technology for coal mines

open access: yesMeitian dizhi yu kantan
BackgroundUnderground borehole measurement emerges as a core technology for the safe production of coal mines. Its multi-parameter measurements, data accuracy, data transmission rate, and reliability directly influence the timeliness of early warning for
Long CHEN   +5 more
doaj   +1 more source

Selection criteria and feasibility of the inversion model for azimuthal electromagnetic logging while drilling (LWD)

open access: yesPetroleum Exploration and Development, 2018
Azimuthal electromagnetic logging while drilling (LWD), which is capable of providing accurate position information approaching bed boundary, has been widely applied in real-time geosteering.
Lei WANG   +5 more
doaj   +1 more source

Technical difficulties of logging while drilling in carbonate reservoirs and the countermeasures: A case study from the Sichuan Basin

open access: yesNatural Gas Industry B, 2015
In the Sichuan Basin, carbonate reservoirs are characterized by deep burial depth and strong heterogeneity, so it is difficult to conduct structure steering, pore space reservoir tracking and trajectory control in the process of geosteering logging while
Shudong Zhang
doaj   +1 more source

Technical Analysis of Horizontal Section Geosteering

open access: yesCejing jishu
The angle between borehole trajectory and formation interface is the key parameter of horizontal section trajectory control in the geosteering process of horizontal wells.
LI Xiaoqiang, YANG Bin, YANG Zhihua
doaj   +1 more source

Real-Time Automated Geosteering Interpretation Combining Log Interpretation and 3D Horizon Tracking

open access: yesGeosciences
Existing methods for estimating formation boundaries from well-log data only analyze the formation along the wellbore, failing to capture changes in the 3D formation structure around it.
John D’Angelo   +5 more
doaj   +1 more source

Azimuthal Electromagnetic Wave High-Definition Multi-Boundary Detection While Drilling and Field Applications

open access: yesCejing jishu
With the increasing prevalence of thinly interbedded reservoirs and structurally complex oil reservoirs, horizontal well geosteering operations demand more accurate identification of multiple formation boundaries.
YUE Xizhou   +6 more
doaj   +1 more source

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