... within the same lateral wellbores. The focus area for this study is a conventional play which is being exploited utilizing technologies of maximum reservoir contact, including horizontal drilling coupled with multistage fracturing to make oil development in this area a much more economical pursuit...

... at its peak. Due to the system instability more ROP was lost with other controllers’ set points driving the drum rotation speed. The fastest stands in the lateral were drilled in ROP mode (i.e., ROP set point in control, with WOB and differential pressure set at safety limits but not generally...

...A. Well Construction Method The Technology Advancement of Multilaterals (TAML) system categorizes multilateral wells according to junction functionality and complexity, designated TAML Levels 1 through 6. This ranking system is used to determine the appropriate lateral design. TAML levels...

... running in hole and a faulty GLV identified. With the well flowing comingled from both mainbore and lateral 2, data indicated a mixture of oil and water being produced, along with significant quantities of sand. Choking back both bores to 50% resulted in continued water and sand production. When the ICV...

... development programs (2018-2020), the MSDT system was installed in two infill wells. In total, 53 and 61 MSDT subs were deployed with the 5.5" liner creating 159 and 183 laterals, respectively. The MSDT was integrated with Inflow Control Device (ICD) screens and swellable packers to constitute the total...

.... For over two decades multilateral technology has extended the production life of these fields by continuing to evolve to meet the demands of increasingly complex subsea applications. Over this history, multilateral applications have evolved from dual-laterals with standalone screens and commingled flow...

...Case Study: Flow Assurance, Frac Communication and FDI The first case study focuses on a pair of adjacent Marcellus wells in the Appalachian Basin. The operator wanted toe side flow assurance diagnostics to be sure that the approximately two-mile-long laterals were open to flow during flowback...

.... The paper discusses diverter application across the laterals, and the measured effect on the fracture system impedance across different types and volumes of diverter. Post-stimulation diagnostics (radioactive tracers and chemical tracers) along with production data are incorporated into the analysis...

.... It is confirmed that the new-geometry steerable motor produced higher and more consistent DLS in slide drilling than the conventional steerable motors. The new-generation steerable drilling motor with enhanced geometry was utilized to deliver vertical/curve/lateral in one run, consistent DLS through the curve...

... temperature gas bearing formations. There were also washed-outs & high "dog-legs" along their wellbores, due to constant geo-steering required to keep the laterals within the hydrocarbon bearing zones. These factors introduced challenges to deploying the conventional MSF completion in these laterals. Due...

... time. During completion of the lower well, two (2) notable pressure communication events were observed in the offsetting upper well. Following the logging applications performed on both wellbores the results displayed three (3) localized points along the offsetting lateral. At which, a propped...

... that a combination of SPRA and VEDA would allow maximizing lateral coverage and enhance acid penetration due to the reduced rate of reaction and chemical diversion capabilities from thief zones. Combining the introduction of SPRA and VEDA with a shift to bullheading and higher pumping rates enabled the delivery...

.... It shows that the weighted pill could be spotted in around 35mins before removing the RCD elements and pulling the BHA out of hole conventionally. The dotted green box in Figure 5 illustrates ECD at shoe and in the lateral which is managed below the formation integrity test (FIT) value during planning...

.... Conventional flowback types comparison Items Zero Flaring Conventional Operation cost Moderate Low Producer Hydrocarbon Recovered Burned Harmful Toxic Releases Minor/eliminated High Oil Spill Eliminated Possible Flowback Method Lateral by lateral and Commingle...

... be applied. Case studies are presented based on the application of diagnostic data from an extensive project/well database. To leverage historical data in new projects, metrics are created as a benchmarking tool. The case studies in this paper include metrics such as the Known Lateral Contribution (KLC...

... Abstract This paper deals with the case of using the production surveillance inflow tracer-based method in one of multi-lateral wells located in West Siberia. Tracer systems were placed in the well during the well construction by horizontal side tracking, and multi-stage hydraulic fracturing...

... There have been many SPE papers (SPE 163894, 168279, 187337, 187374, 191689, 195685, 199790, 199802, 199829) that review tools and procedures for coiled tubing to become more consistent and effective at drilling out frac plugs and reach further into the lateral. The objective...

... Abstract An application for Pressurized Mud Cap Drilling (PMCD) was needed to successfully drill an U.S. onshore, unconventional, High Pressure / High Temperature (HP/HT) well. The length of the lateral, highly fractured formation & extremely high MWs needed to drill the lateral proved...

... recoveries in these stages with low hydrocarbon flowback are comparable to better performing stages, indicating effective stimulation and flow capacity within the fracture. This underscores the importance of comprehensive lithology evaluation across the lateral to identify low productivity intervals...

... Abstract As horizontal wells have come to dominate shale and tight development programs, US land rigs have experienced challenges with running production casing on elevators to total depth (TD) in long laterals (≥10,000 ft). An initial study was done, and the results identified a relationship...