Study of real-time LWD data visual interpretation and geo-steering technology

Abstract

time visual interpretation and geo-steering. The method comprises of computer communication, well log data processing, formation recognition, reservoir modeling and model updating in real time. We studied computer software with Chinese intellectual property rights covering the following important aspects: of the proposed technologies.

Study on Key Technologies of Geosteering for Shale Gas Horizontal Wells in the Complex Structural Area of Block H in Western Hubei-Eastern Chongqing

“…Given the challenges during the target entry phase due to changing azimuth and significant sediment thickness variations in the layers above the target, the traditional equal thickness method posed difficulties in predicting the target A and controlling the target entry trajectory. , In terms of these challenges, we advocate for a principle ensuring a suitable alignment between consumed stratigraphic thickness and well inclination. Innovatively, we introduced the average angle technique to calculate the consumed stratigraphic thickness between any two points, A and B, along the trajectory direction (Figure ).…”

Numerical simulation and dimension reduction analysis of electromagnetic logging while drilling of horizontal wells in complex structures

“…Electromagnetic (EM) logging while drilling (LWD) has been widely used in high-angle and horizontal (HA/HZ) wells for real-time geosteering and formation evaluation (Netto et al 2013;Hu et al 2017;Yuan et al 2018;Lai et al 2018). A fast and accurate EM LWD modeling algorithm is required for the pre-drilling forward simulation, the real-time inversion and the post-drilling evaluation in directional wells (Tan et al 2012;Shao et al 2013;Wang et al 2019). The simulation of EM LWD in HA/HZ wells is essentially a 3D modeling problem (Deng et al 2010(Deng et al , 2015Zhang et al 2019a, b).…”