... perforating operation of plug-and-perf completed horizontal wells using real-time high-resolution pressure gauges that record pump-down injection rates and pressures. The operator has successfully performed the extended pump-down falloff pressure tests in 12 horizontal wells in the Williston Basin...

... without having to use a cement plug thereby saving rig time. The HFLS and RFLCM treatments were mixed in water, pumped through a circulating sub and a hesitation squeeze was applied. After the squeeze, both static and dynamic loss rates reduced to zero and operations were able to safely continue...

... simultaneous zone isolation while delivering the treatment to leave no residual gel or solid plugs that may restrict the wellbore or require post-treatment interventions. In addition to eliminating risk of getting stuck or plugging the wellbore, it reduces operation time significantly from days and weeks...

... and cementitious LCMs have historically been used to mitigate these losses. However, these LCMs could potentially reduce future well productivity and tend to plug surface facilities / equipment during production. Therefore, the application of an effective LCM that would cure the losses while minimizing...

... Abstract This study investigates the hydrogen permeability of salt-rock plugs from the Lotsberg Salt Formation and its caprock, the Ernestina Formation. We employed a newly-developed pressure pulse decay (PPD) system, which is modified and extended from the existing systems for shale-rock...

... Figure 3 The EF core plug after coating with a sealant. Only one end face of the plug is open for NGL and oil transport. NGL Preparation The NGL mixture consists of both gaseous and liquid hydrocarbon components under atmospheric conditions. To prepare an NGL mixture with an accurate...

... Abstract Managing asset retirement obligations efficiently and effectively is an important objective for operators. Nowadays, Many operators are looking for additional guarantees before and during plug and abandonment (P&A) procedures to properly decommission the wells and permanently seal...

... The following table illustrates the lab tests of dissolvable frac plugs The above testing conditions confirm the integrity of the dissolvable frac plug as well as the holding pressure time. In addition, the above table summarizes the different tests that were executed for the plug to test...

... of the core plugs to simulate the forced imbibition of fracturing fluid along with hydraulic fracturing in real field operations. Finally, the injection of crude oil was resumed from the original end of the core sample to establish the flowback effective oil permeability after hydraulic fracturing...

... Discrete Element Method (CFD-DEM) model to simulate the fiber-laden fluid flow process in millimeter-wide fractures. The effect of fiber concentration, fracture roughness, and fiber stiffness on plugging capability is evaluated. It is found that, although fibers are known to create net-like structures...

... completion equipment wellbore integrity plug envelope design for well integrity investigation scenario riglessly illustration leak packer workover completion brine optimization debris uae government packer leak below intervention bead adnoc onshore differential Introduction to Well...

..., as well as different operating conditions. Horizontal subsea tiebacks with crude oils have been simulated and sensitivity tests were performed to investigate effects of water cut and gas oil ratios (GOR) on hydrate-plugging probability ( Zerpa et al. 2012 ) as well as effects due to the presence of anti...

... Abstract Current commercial dissolvable plugs have been found unsuitable when we hydraulic fracture extremely HTHP wells, especially with acid. Dissolvable alloys, the most popular materials, react too intensively in acid environment, and nearly all types of commercial protective coatings have...

..., and resins, cannot be implemented adequately when directional tools are used. Drilling the heterogeneous pore pressure formations have a high risk of plugging tools. When circulation is lost in gas wells, the well control technologies implemented should offer rapid setting and seal permeable zones...

... completion equipment malaysia government downhole intervention production enhancement well intervention plug upstream oil & gas asia government hanger valve interventionless system application support well cost reduction barrier subsurface completion isolation united states...

... Figure 2 Components that make up a traditional roller-cone bit Abstract For almost a decade, the predominant completion drill-out bits utilized to drill composite frac plugs were roller-cone (RC) bits incorporating "hybrid" cutting structures. RC hybrid cutting structures consist...

... variation. Nuclear magnetic resonance (NMR) upstream oil & gas well logging unconventional najmah reservoir formation evaluation drilling operation core analysis structural geology log analysis permeability plug saturation petroleum engineer kuwait pressurized sidewall west kuwait...

... include fracturing plug failure, under/over stimulation and adverse well performance as stated in published literature. This paper addresses plug effectiveness and impacts on production, fracture geometry and well spacing using a historical review of fracturing plugs and a simulation-based approach. Using...

... the downhole processed data. However, relative depth is absolutely critical for a variety of well operations. Perforating or cutting casing are two primary applications, but we also need to understand the depth placement of whipstocks, plugs and packers. Casing collar detection has been a standard wireline...

... operation drilling fluids and materials drilling fluid management & disposal downhole intervention plug dissolvable plug operational efficiency nitrogen utilizing low-density mud system unconventional well drilling fluid selection and formulation lwm 11039 0 freshwater ppg post frac...