China 
Africa 
Explore chapters and articles related to this topic
Role of Emerging Technologies in Energy Transformation and Development of Clean and Green Energy Solutions
Published in Anirbid Sircar, Gautami Tripathi, Namrata Bist, Kashish Ara Shakil, Mithileysh Sathiyanarayanan, Emerging Technologies for Sustainable and Smart Energy, 2022
Another area of importance where emerging technologies have major role to play is drilling and its automation (Figure 11.5). Drilling of reservoir is a high risk, capital-intensive project where there are vast opportunities for improvement. Managed pressure drilling (MPD) and underbalanced drilling (UBD) apply choke manipulation techniques to increase or decrease the equivalent circulating density (ECD) of the drilling fluid in the well, thereby managing formation pressure without actually changing the drilling fluid density. Addition of nanoparticles in drilling fluids helps manage their properties to meet rheological and density issues. Logging while drilling (LWD) has enabled real time logging of the borehole during its construction phase. It saves valuable rig time and enables real time decision related to wellbore quality. Rotary steering has enabled better steering and control over deviated and horizontal wells. Casing while drilling is another emerging technology where well casing is run along with drill string so that the wellbore is cased while being drilled. Several new wellbore logging tools based on nuclear magnetic resonance (NMR), neutron density, resistivity and gamma ray technologies are run to better understand Petrophysical properties of the subsurface reservoir rocks.
Drilling Engineering
Published in Nwanosike-Warren Quinta, Oil and Gas Engineering for Non-Engineers, 2022
Logging-While-Drilling (LWD) incorporates logging tools into the drill string so that logging occurs concurrently with drilling. These petrophysical data are sent to the surface in real time. Information can also be stored and downloaded when the tools return to the surface. LWD incorporates resistivity, mud logs, SP, induction, and gamma-ray tools. LWD allows drillers to make immediate changes to the drilling plan.
A lossless compression method for logging data while drilling
Published in Systems Science & Control Engineering, 2021
Shan Song, Taiwei Lian, Wei Liu, Zhengbing Zhang, Mingzhang Luo, Aiping Wu
Logging while drilling (LWD) technology can monitor the drilling and formation conditions in real time during bit drilling. Therefore, it is an important technology to obtain formation parameters in oil drilling activities, and it is widely used in various drilling and logging projects (Ivanov et al., 2020; Mwachaka et al., 2019; Yang et al., 2013; Zhu et al., 2013). In the process of LWD activities, it is necessary to transmit the logging information to the surface in real time. The mud pulse is a stable, reliable and the most widely used method of LWD information transmission. But the data transmission rate is very low (Bernasconi et al., 1999; Su et al., 2013; Zheng et al., 2012). In addition, with the development of LWD technology, measuring instruments are constantly improved and measuring parameters are also increasing. From the initial measurement of geometric parameters such as well inclination, tool orientation and tool face, to the measurement of multiple geological environment parameters such as pressure, temperature, natural gamma-ray and resistivity, and the amount of data to be transmitted increases sharply. So traditional mud pulse data transmission technology is difficult to meet the needs of real-time logging engineering. However, the efficiency of data transmission in LWD will be greatly improved if the data compression technology is applied (Hutin et al., 2001). Thus, the real-time performance and safety in LWD engineering can be improved while carrying out LWD projects.