Drilling Experience Research Articles

Evaluation of a Disaster Preparedness Curriculum and Medical Students' Views on Preparedness Education Requirements for Health Professionals.

In general, medical students perceive themselves as inadequately prepared to assist in disasters. This study evaluated the impact of a disaster preparedness curriculum and medical students' views toward required preparedness education for health care professionals. A comprehensive disaster preparedness curriculum was evaluated on its effect on medical students' views on preparedness education requirements, preparedness, and prior disaster training using self-report survey methodology. Results provide evidence to support curricular effectiveness in significantly increasing initial participant views of health professionals' education requirements, perceived preparedness for integrating professional roles into the emergency response system, and confidence in exposure risk assessment and triage skills. Most participants possessed limited recent prior disaster training and drill experience. Most interestingly, the majority consistently believed throughout the study that disaster preparedness training should be a medical license mandate. For those instructing current medical students in disaster preparedness, it is suggested that a curriculum be chosen that can create participant initial anticipation, awareness, and belief in the importance of and need for disaster preparedness training. Further investigation is recommended into the relationship between students' perceived training importance and any future curriculum delivery efforts on behalf of required or mandatory preparedness offerings in continuing professional development.

Behaviors of a group of university students during an earthquake drill and their compliance with the emergency disaster plan: An action research

Approximately 60% of the casualties due to disasters occur due to earthquakes. This study aimed to discover and develop the strengths and weaknesses of a group of university students during a possible earthquake, their behavior towards evacuation and assembly areas, and their adaptation to the emergency disaster plan. The research was carried out between May–June 2022 as “liberating/developing/critical action research,” a subtype of action research, one of the qualitative research methods. Thirty-five students participated in the first drill, and 31 participated in the second. The study data were collected through “observations” made with the installed cameras and “focus group interviews” with the students through semi-structured interview forms. An average of 3.25 behaviors expected to be observed were displayed as expected by the students during the first drill. The average of the behaviors displayed during the second drill increased to 5.18. As a result of the synthesis of the qualitative data obtained from the focus group interviews, it was seen that two main themes were formed: “Drill management” and “Disaster experience.” The main theme of drill management was “Drill moment,” “Evacuation moment,” and “Drill experience” analytical themes. In contrast, the main theme of disaster experience was “Disaster cycle,” “Disaster perception,” “Disaster awareness,” and “Earthquake experience.” After the second drill, it was evaluated that the problems identified in the first were eliminated. The students' adaptation to the emergency disaster plan increased by re-applying to the observation and focus group interviews.

Are Nurses Ready for a Disaster in Turkey? A Hospital Case.

In Turkey, which is a land of disasters, it is vital for nurses to be prepared before a disaster, and to exhibit an effective attitude and behavior during it. Having a large number of casualties during a disaster may cause inadequacies in receiving basic health care in the hospital. This study was conducted in a descriptive and cross-sectional style to determine the disaster preparedness and preparedness perceptions of nurses. Data were collected with the Personal Information Form and Nurses' Perception of Disaster Preparedness Scale (NPDPS). Nurses' disaster experience, drill experience, and perusal of the disaster plan positively affected the perception of disaster. The disaster preparedness of the institution positively affected the perception of disaster preparation. A significant difference was determined between the requests for information regarding disaster education and NPDPS. A statistically significant relationship was found between terrorist attacks, earthquake exposure, and the total scale score of NPDPS. Consequently, nurses and health institutions, whose responsibilities become graver in disasters, have duties such as providing treatment and medical support. Therefore, it was suggested that disaster nursing and disaster management should have been included in the in-service training of nurses.

Does “Just in Time” teaching of ergonomic principles improve posture of trainees during otologic microscopic surgery?

PurposeMusculoskeletal disorders are prevalent among otolaryngologists and otologists with symptoms starting during residency. Prior data suggested that high-risk joint angles were often adopted at procedure onset, suggesting a detrimental “natural” operating position. Despite its importance, dedicated ergonomic teaching is not systematically introduced into residency training. The objective of this study was to compare initial ergonomic positioning during microscopic temporal bone surgery between those who receive “Just in Time” ergonomic teaching prior to starting dissection with those who did not. Materials and methodsThis was a pilot, prospective trial in which otolaryngology residents at an urban, multicenter tertiary care academic institution (n = 14) wore ergonomic sensors (inertial measurement units) during microscopic temporal bone lab drilling. Prior to recording, participants were randomized to receive an instructional presentation on ergonomic principles (n = 8, intervention group) or not (n = 6, control group). The inertial measurement units analyzed neck and back angles for the initial 5 min of drilling. ResultsOf 14 trainees, 78.6 % had prior experience with otologic microscopic cases and 14.3 % reported prior surgical ergonomic training or instruction. The groups were matched in trainee height (P = 0.54), handedness (P = 0.83), stage of otolaryngology training (P = 0.64), prior otologic microscopic surgery experience (P = 0.35), prior temporal bone drilling experience (P = 0.35), and prior teaching in ergonomic principles (P = 0.47). Junior trainees (PGY 1–3) who did not receive “Just in Time” teaching adopted a posture with significantly higher risk back flexion compared to junior trainees who received the training (25.3° vs. 5.7°, P = 0.04). There was no difference in back positioning among senior trainees (12.6° vs. −5.7°, P = 0.13). While there was a trend towards those in the intervention group adopting safer procedural posture, there was no significant difference in the overall cohort between the intervention and control groups in both neck positioning (−11.0° vs. −19.1°, P = 0.17) and back positioning (8.6° vs. 19.1°, P = 0.18). ConclusionsMusculoskeletal related pain is prevalent among otolaryngologists and otologists with data suggesting that symptoms begin during residency. Targeted “Just in Time” teaching of ergonomic principles is feasible and may be effective for development of healthy postural habits, especially among junior trainees.

A Comparative Study on Drill Tool Effect on Vibration and Delamination Characteristics of FRPs

ABSTRACT Drilling is an inevitable process for component assembly which need appropriate control aiming damage reduction. To study such drill-induced damages, Glass and Natural fiber composites with unidirectional (11) and cross-ply lay-up (12) were drilled using Twist and Annular Core drill tool of varying diameters (6 and 8 mm). The derivative of modal analysis (natural frequency, damping) and delamination are the factors considered for the analysis. In the chosen laminates, maximum variation in the natural frequency was observed to be 8.98% in N12 and 8.60% in G12 for twist drill of 8 mm, whereas the core drill of 8 mm contributes to 0.51% and 0.54%. A similar trend was observed in damping factor showing a maximum variation of 26.98% (N12) and 11.30% (N12) with 8 mm twist and core drill, respectively. Similarly, the maximum delamination factor was observed to be 1 .62 and 1.30 with 8 mm core drill in G12 and N12 which is lower than the 6 and 8 mm twist drills. Further, twist drilling experiences both peel-up and push down delamination in N12, N11 which was eliminated by the core drill. Thus, core drill exhibits distinct advantages with reduced damage and retained structural properties.

Usability, acceptance, and educational usefulness study of a new haptic operative dentistry virtual reality simulator

BackgroundDental preclinical training has been traditionally centered onverbal instructions and subsequent execution on phantom heads and plastic training models. However, these present present limitations. Virtual Reality (VR) and haptic simulators have been proposed with promising results and advantages and have showed usefullness in the preclinical training environment. We designed DENTIFY, a multimodal immersive simulator to assist Operative Dentistry learning, which exposes the user to different virtual clinical scenarios while operating a haptic pen to simulate dental drilling. ObjectiveThe main objective is to assess DENTIFY’s usability, acceptance, and educational usefulness to dentists, in order to make the proper changes and, subsequently, to test DENTIFY with undergraduate preclinical dental students. MethodsDENTIFY combines an immersive head mounted VR display, a haptic pen in which the pen itself has been replaced by a 3D printed model of a dental turbine and a controller with buttons to adjust and select the scenario of the simulation, along with 3D sounds of real dental drilling. The user’s dominant hand operated the virtual turbine on the VR-created scenario, while the non-dominant hand is used to activate the simulator and case selection. The simulation sessions occurred in a controlled virtual environment. We evaluated DENTIFY’s usability and acceptance over the course of 13 training sessions with dental professionals, after the users performed a drilling task in virtual dental tissues. ResultsThe conducted user acceptance indicates that DENTIFY shows potencial enhancing learning in operative dentistry as it promotes self-evaluation and multimodal immersion on the dental drilling experience. ConclusionsDENTIFY presented significant usability and acceptance from trained dentists. This tool showed to have teaching and learning (hence, pedagogical) potential in operative dentistry.

Survey on Geothermal Resources in Zhangjiakou Area

The Zhangjiakou area is rich in geothermal resources, and many counties in the region have discovered low-temperature geothermal. Structurally, Huailai County, Zhangjiakou City is located at the intersection of Zhangjiakou-Penglai Fault Zone and Shanxi Fault Basin (or Fenwei Seismic Tectonic Zone), namely the Yanqing-Huailai Basin (Yanhuai Basin). A large amount of geothermal resource investigation and research works has preliminarily defined that the area has good geothermal resource accumulation conditions. From 2019 to 2020, the China Geological Survey has organized several investigation and research in the area for in-depth geothermal resource. As one method of the survey results verification, a parameter well for geothermal resource survey was deployed as ZK02 and completed at 3000m depth. The ZK02 well was completed at a depth of 3006.9m, drilling through the Quaternary, Neogene, and Jixian strata, and entered the Archean gneiss strata. The well successfully explored high-quality artesian heat storage in the Jixian strata, obtained deep geothermal geological data and physical data, revealed the regional stratigraphic sequence and geological structure characteristics, and provided a scientific basis for regional geothermal resource potential evaluation. Based on the engineering practice of ZK02 well, this paper systematically summarizes drilling technology and experience from well structure to drilling equipment, construction technology and key technology, analyses the complex conditions and countermeasures downhole, and provide reference for the follow-up regional geothermal resources investigation, research and development and.

Disaster Preparedness and Associated Factors Among Emergency Nurses in Guangdong Province, China: A Descriptive Cross-Sectional Study.

The purpose of this study was to examine the prevalence of disaster preparedness and to explore associated factors among emergency nurses in Guangdong Province, China. In this descriptive, cross-sectional study, the mainland China version of the Disaster Preparedness Evaluation Tool was used to collect data from 633 nurses working in 26 emergency departments, in August 2018. Descriptive analyses were used to examine the disaster preparedness, and multiple linear regression analysis was used to investigate associated factors. The perceived disaster preparedness of emergency nurses was at a moderate level. Among the 5 dimensions, the score for disaster management was lowest. Emergency nurses' disaster training (r = .26; P < 0.001) and drill experiences (r = .22; P < 0.001) were significantly correlated with disaster preparedness. Six significant factors associated with disaster preparedness were identified in this study: age, gender, disaster training experience, disaster drill experience, willingness, and educational level (R2 = .14; F = 18.20; P < 0.001). Hospitals and nurse managers should carry out interdisciplinary and multidisciplinary cooperation to improve emergency nurses' disaster preparedness, especially disaster management. Organizing disaster simulation exercises, providing psychological support and safety considerations, and formulating disaster nursing training programs may be beneficial for emergency nurses' disaster preparedness.

Anniversary of the commencement of the sg-3 Kola superdeep borehole drilling operations

The presented article reviews the history of drilling the deepest well in the world, located in the northeastern part of the Early Proterozoic Pechenga structure (Kola Peninsula). In 1990, the Kola Superdeep Borehole (SG-3) reached a record depth of 12,262 m. SG-3 fully completed all the assigned tasks, both in technical and scientific terms. The 4024 linear meters of core were extracted, including drill samples from a record depth. Overall, a whole complex of logging geophysical works with a total length of 400 thousand km was performed through the use of 25 methods. This allowed obtaining the latest information on the structure and composition of the deep horizons of the earth's crust, which qualitatively changed the data of previous deep seismic studies. Also, the emerging data on the chemical and mineral composition, as well as the research of physical properties of deep rocks, proved the presence of ore mineralization and metal-bearing hydrothermal systems. SG-3 at its depth uncovered new ore bodies of copper-nickel ores; six types of ore mineralization have been identified throughout the section of the borehole. High permeability for fluids and hydrothermal solutions of deep zones of the earth's crust was established, which is associated with increased porosity and rocks fracturing. It was also proved that the earliest Precambrian metasedimentary rocks were formed with the active participation of biological processes. The presented analysis of the deep-hole drilling experience allows the author to confirm the status of SG-3 as the deepest artificial point on Earth.

3D Geomechanics Characterization in V Field

Upstream oil & gas operators faced many challenges in drilling activities during a field development phase where the reservoir pressure depletion might disturb the stresses equilibrium in the formation and triggered stress redistribution in the reservoir and its surrounding rocks. These changes could lead into more problematic drilling experiences such as the narrowing of safe drilling mud weight windows and potential operating losses due to related wellbore instability issues. 3D Geomechanics analysis conducted to identify the stress redistribution and predict the field wellbore instabilities behaviour that honour the geological features in the area. The 1 D Geomechanics model is created for offset wells which consist of rock strength and elastic properties, pore pressure and stresses profiles. Seismic inversion volume is used to populate the properties in the 3D static model and field Geomechanics simulation conducted to obtain the field stresses profile. V field data is used as the data available in this field is complete to support this study (wire-line logs, petrophysical interpretations, VSP, core analysis, production log, drilling reports, and the seismic velocity cube). The results of the integrated reservoir Geomechanics characterization with seismic inversion managed to predict the wellbore instabilities model in the offset wells.

Emergency Response: A Cross-sectional Study of Core Competencies for Nurses Regarding Major Infectious Disease Outbreaks

IntroductionThe core competencies of nursing personnel have been identified as a main factor affecting nursing effectiveness. This study examined core emergency response competencies of Chinese nursing personnel related to the outbreak of major infectious diseases. MethodsA survey was conducted among 960 nurses working in a tertiary hospital in Shanghai, China. Data were collected on core emergency response competencies of nursing personnel caring for patients with major infectious diseases, measuring overall competency as well as by dimensions of prevention ability, rescue ability, and preparation ability. A t-test and one-way analysis of variance were first analyzed for differences between groups, followed by multiple linear regression to analyze main influencing factors for core emergency response competencies. ResultsThe average score for core emergency response competencies of nursing personnel delivering care to patients with major infectious diseases was 128.05 (SD 22.23) (range 36–180 points); or 71%, which is equivalent to moderate performance. Multiple linear regression analysis demonstrated that the main influencing factors for these nursing personnel were before participation in emergency drills for infectious diseases, current educational background, and working experience in the realm of infectious disease nursing. The final model explained 8.4% of the variance in core emergency response competencies. DiscussionThese findings indicate that it is necessary to strengthen the training of nursing staff with educational background deficits or no prior work or drill experience related to infectious diseases to effectively improve the core emergency response competencies of nursing personnel relative to infectious diseases.

Review of Recent Drilling Projects in Unconventional Geothermal Resources at Campi Flegrei Caldera, Cornubian Batholith, and Williston Sedimentary Basin

Unconventional geothermal resource development can contribute to increase power generation from renewable energy sources in countries without conventional hydrothermal reservoirs, which are usually associated with magmatic activity and extensional faulting, as well as to expand the generation in those regions where conventional resources are already used. Three recent drilling experiences focused on the characterization of unconventional resources are described and compared: the Campi Flegrei Deep Drilling Project (CFDDP) in Italy, the United Downs Deep Geothermal Power (UDDGP) project in the United Kingdom, and the DEEP Earth Energy Production in Canada. The main aspects of each project are described (geology, drilling, data collection, communication strategies) and compared to discuss challenges encountered at the tree sites considered, including a scientific drilling project (CFDDP) and two industrial ones (UDDGP and DEEP). The first project, at the first stage of pilot hole, although not reaching deep supercritical targets, showed extremely high, very rare thermal gradients even at shallow depths. Although each project has its own history, as well as social and economic context, the lessons learned at each drilling site can be used to further facilitate geothermal energy development.

The Double Trigger for Mortgage Default: Evidence from the Fracking Boom

This paper exploits a natural experiment afforded by the fracking boom in Pennsylvania to shed light on the determinants of mortgage default. Looking only at mortgages originated before fracking became viable, and using the underlying geology as a supply shifter, we find that mortgages on homes exposed to shale drilling experience a significant reduction in default risk. This effect is more than four times greater for borrowers who are underwater on their loans. Additional evidence shows that fracking activity does not raise house prices, but significantly increases household income through higher royalty payments, wages, and salaries. Furthermore, we find that fracking directly leads to employment increases in the drilling/mining and construction sectors at the county level and reduces income from unemployment benefits at the ZIP-code level. Finally, in addition to reducing mortgage-default risk, we show that fracking lowers credit card delinquencies. These results are most consistent with the “double-trigger” theory of mortgage default, where underwater borrowers subject to an adverse income shock are much more likely to lose their homes to foreclosure. This paper was accepted by David Simchi-Levi, finance.

Development and Validation of a Scenario-Based Drilling Simulator for Training and Evaluating Human Factors

Drilling and completing an oil/gas well is a time-sensitive and high-value operation, in which environment/system parameters change in unseen, unpredictable environments. Safety issues arise at every stage. Drilling principles can be taught using traditional methods, but safety and event response are difficult to teach in such formats. Here, in this article, we integrate a hardware-in-the-loop simulator, downhole physics, and auxiliary touchscreen interfaces (similar to a rig's add-on equipment) to develop a realistic, real-time drilling simulator for well control operation training. Realistic operational data are supplied to the simulator representative of downhole operations, including unplanned well events. The well plan accounts for drilling parameter changes, the pore-pressure fracture-gradient drilling window, mud weights, etc., which occur in response to the unplanned events. The developed simulator is used for hands-on training, human factor studies, model verification, and evaluating new auxiliary equipment and/or operational procedures. A critical research objective was evaluating the accuracy/realism of the developed system. To do so, eight petroleum engineering students and 11 certified drillers were trained and asked to complete a comprehensive (>6 h) drilling operation. System accuracy was measured by comparing how new versus experienced operators learned to operate the simulator, execute mission-critical tasks, and respond to unplanned events. The results validate the realism of the developed simulator and scenarios, since personnel with prior drilling experience took significantly less time to master the system.

Severe wellbore instability in a complex lithology formation necessitating casing while drilling and continuous circulation system

Most of drilling hole problems are attributed to wellbore stability issues which adversely cause excessive lost time and cost millions of dollars. The past drilling experiences in Kupal oilfield showed excessive mud losses, kick flows, tight holes and pipe stuck leading to repeated reaming, fishing and sidetracking. Most of the drilling-associated problems in this field occurred during drilling the 12 ¼-in. hole, which is across the non-reservoir Gachsaran formation (consisting of anhydrite, gypsum and marl with thin limestone layers). Mainly due to the lack of required formation evaluation data, no geomechanical studies of this formation have been conducted to date. In this work, first, we constructed a geomechanical model to investigate the root of the problems. This is a pioneer wellbore stability work for such a complex lithology formation which included finding the equations best-matching with core data and field observations. Finally, to overcome the field challenges and hole problems, the study proposes some field remedial actions. The results of the geomechanical modeling show that the pore pressure, shear and tensile failure gradients are greatly variable with the safe mud weight window becoming excessively narrow at some intervals. This accounts for the encountered wellbore stability issues as managing the mud weight in these situations requires several casing strings. To mitigate the extent of the problem, this study proposes the application of innovative drilling technologies including casing while drilling to eliminate the casing running time with potential reduction in drilling time, and continuous circulation system to prevent cuttings settling and kick flows during connections. These technologies are capable of elimination of the geomechanical part of the drilling delay (30% of the average 77 drilling days) per well.

Double Trigger for Mortgage Default: The Fracking Boom

This paper exploits a natural experiment afforded by the fracking boom in Pennsylvania to shed light on the determinants of mortgage default. Looking only at mortgages originated before fracking became viable, and using the underlying geology as a supply shifter, we find that mortgages on homes exposed to shale drilling experience a significant reduction in default risk. This effect is more than four times greater for borrowers who are underwater on their loans. Additional evidence shows that fracking activity does not raise house prices but significantly increases household income through higher royalty payments, wages and salaries. Furthermore, we find that fracking directly leads to employment increases in the drilling/mining and construction sectors at the county level, and reduces income from unemployment benefits at the ZIP code level. Finally, in addition to reducing mortgage default risk, we show that fracking lowers credit card delinquencies. These results are most consistent with the double-trigger theory of mortgage default, where underwater borrowers subject to an adverse income shock are much more likely to lose their homes to foreclosure.

Exploration of temporal bone anatomy using mixed reality (HoloLens): development of a mixed reality anatomy teaching resource prototype

Mixed reality (MR), a technology which supplements the real world with virtual objects, is increasingly becoming available as a teaching tool in medical education. The Microsoft HoloLens device allows operators to experience MR using a head-mounted device without interfering with their physical reality, stimulating a realistic learning experience using virtual objects. This project aimed to develop a MR anatomy teaching application with HoloLens for exploring the anatomy of the temporal bone. The educational application was developed from a multidisciplinary collaboration between undergraduate and postgraduate students across several academic disciplines with Medtronic, a medical technology company. 3D anatomical models were built using ZBrush and Blender, while the HoloLens1 application was developed using Windows 10, Visual Studio 2017, Unity and Mixed Reality Toolkit (MRTK). Modules developed within the application included a basic HoloLens tutorial, a virtual temporal bone with surgical anatomy landmarks and free drilling of the temporal bone. The basic tutorial allows the operator to adapt to the MR environment prior to exploring the anatomical landmarks of the 3D temporal bone. The free drilling of the temporal bone using vertex displacement and texture stretching replicates a real-time bone drilling experience and allows the operator to explore the anatomical relationship between different otological structures.

3D printed temporal bone as a tool for otologic surgery simulation.

In this face validity study, we discuss the fabrication and utility of an affordable, computed tomography (CT)-based, anatomy-accurate, 3-dimensional (3D) printed temporal bone models for junior otolaryngology resident training. After IRB exemption, patient CT scans were anonymized and downloaded as Digital Imaging and Communications in Medicine (DICOM) files to prepare for conversion. These files were converted to stereolithography format for 3D printing. Important soft tissue structures were identified and labeled to be printed in a separate color than bone. Models were printed using a desktop 3D printer (Ultimaker 3 Extended, Ultimaker BV, Netherlands) and polylactic acid (PLA) filament. 10 junior residents with no previous drilling experience participated in the study. Each resident was asked to drill a simple mastoidectomy on both a cadaveric and 3D printed temporal bone. Following their experience, they were asked to complete a Likert questionnaire. The final result was an anatomically accurate (XYZ accuracy = 12.5, 12.5, 5 μm) 3D model of a temporal bone that was deemed to be appropriate in tactile feedback using the surgical drill. The total cost of the material required to fabricate the model was approximately $1.50. Participants found the 3D models overall to be similar to cadaveric temporal bones, particularly in overall value and safety. 3D printed temporal bone models can be used as an affordable and inexhaustible alternative, or supplement, to traditional cadaveric surgical simulation.

Assessment of interprofessional collaboration before and after a simulated disaster drill experience

IntroductionWith increasing acuity, patient care requires a collaborative approach by a team of providers. Recent literature indicates healthcare professionals lack the ability to work in collaboration with other healthcare professionals resulting from communication and collaborative practice gaps. Background/LiteratureDisasters require a rich collaboration of teams in order to be effective. As a result, interprofessional collaboration is a foundational underpinning of disaster preparedness. The overall purpose of this study was to assess perceptions of interprofessional collaboration before and after participating in an interprofessional simulated disaster drill as part of a Community Health Nursing course. MethodsThis pre-test, post-test descriptive research design assessed communication, collaboration, roles/responsibilities, patient focus, team functioning and conflict management of nursing students who participated in a simulated disaster drill. Data/ResultsParticipants were nursing majors and primarily Caucasian females (n = 50, 89% and n = 56, 97% respectively), representative of the school of nursing population at the University. Wilcoxon Signed-Ranks test indicated that scores for the total ICAR post-test were significantly lower than the Total ICAR pre-test (Z = −2.006, p = .045, r = −0.19). While each of the individual sections of the ICAR had a lower mean score on the ICAR post-test as compared to the pre-test, collaborative patient/client-family centered approach was statistically significant (p = 0,0.002). DiscussionFollowing the simulated disaster drill experience, nursing students identified gaps in communication, collaboration, roles and responsibilities, collaborative patient/client-family centered approach, team functioning, conflict management/resolution. ConclusionsThe study assessed the perceptions of interprofessional collaboration among undergraduate nursing students before and after a simulated disaster drill. The assessment identified the need to integrate interprofessional competencies in disaster preparedness education.

Unconventional casing programs for subsalt ultra-deep wells with a complex pressure system: A case study on Well Wutan 1 in the Sichuan Basin

Well Wutan 1 is a wildcat well deployed in the Dazhou–Kaijiang paleo-uplift, eastern Sichuan Basin and its design depth is 7570 m. The Cambrian and Sinian strata are its main exploration targets, and the strata below the Silurian in this well are geologically uncertain with a high risk. A large section of gypsum-salt layer may be encountered in the Cambrian and the longitudinal pressure system is complex. It is predicted that the bottom hole temperature is up to 175 °C, and the bottom hole liquid column pressure exceeds 140 MPa, and there is hydrogen sulfide. As a result, the casing program design is confronted with great challenges. In this paper, the difficulties and risks of drilling engineering were analyzed. Then, a casing program was designed and optimized referring to the successful drilling experience of subsalt ultra-deep wells at home and abroad, combined with the pressure system characteristics of Well Wutan 1 and the creep performance of gypsum-salt layers. Finally, the casing program was applied on site. And the following research results were obtained. First, in order to prevent lost circulation, blowout and differential pressure induced stuck pipe in the open hole section, it is determined that the casing program shall be in the pattern of six-section casing with 5 setting points. Second, no setting point is needed in the Carboniferous pressure depleted reservoir for it is lithologically tight and differential pressure induced stuck pipe and lost circulation are less risky. Third, to better isolate the salt layer, one section of casing is specially designed for the Cambrian gypsum-salt layer and its collapse strength is 160 MPa to prevent collapse by salt creep. Fourth, Well Wutan 1 is drilled successfully to the expected strata and its total depth is 8060 m. In conclusion, the unconventional six-section casing program with 5 setting points to ensure the subsalt drilling safety in the eastern Sichuan Basin is rational. The successful drilling of Well Wutan 1 provides experiences and references for the follow-up exploration of deep-seated gas in the Dazhou–Kaijiang paleo-uplift.