... There exists a high potential for formation damage during various stages, including drilling (leading to mud invasion of fractures, which can solidify over time, exceeding 1 month), stimulation (with acid reacting with Najmah mudstones or kerogen, releasing insoluble materials), and production...

... Abstract To overcome the challenges in drilling, completion and testing for one of the highly fractured reservoir in West Kuwait oil field by intercepting the natural fractures and eliminating the causes of formation damage. An integrated multi-disciplinary study was carried out, to understand...

... post-gravel pack. They also enabled identification of downhole events during job execution. The result of the analysis was then used as lesson learned for subsequent well operation. After gravel pack execution in the first well, post-job downhole gauge analysis showed premature fracture occurred...

... debonding along the C/CS interface, while the outer-debonding limit is approached on the CS/RF interface, but never exceeded. Moreover, no tensile failures (via longitudinal or transverse-fracture initiation) is expected along the CS/RF interface, nor casing failures (related to compressive/tensile loads...

... is a heavy-oil field with high water cut associated with oil production; conversion-to-injector well projects have been developed lately to increase asset production by defining injection patterns and sustaining reservoir pressure. Conventional acidizing treatments and hydraulic fracturing have been applied...

... Following the frac job, the goal is for the diverter material remnants to self-degrade entirely, leaving no residue behind in the fracture, this is crucial to prevent any negative impact on flowback or injection, depending on the well type. Dissolution tests were conducted using different carrier...

... for overall success. The paper discusses various completions assemblies along with hydraulic fracturing options. To maintain induced conductive fractures, fracturing fluids, proppants, acids, pumping rates, flowback cleanup, etc. are essential elements to optimize. Well completions are placed with in-depth...

... is least required ( Smith and Carl 2015 ). Isolation methods can range from using a rig to set mechanical restrictions that redirect the fluid flow, or to the use of specially designed particles placed in the flow stream to bridge at the fracture face and divert the treatment. Another method that is widely...

...Greater Ekofisk Area History The Ekofisk field was one of the first discoveries on the Norwegian continental shelf. The field was discovered in 1969 and two years later it was put on production ( Mancillas et al. 1976 ). The field is a naturally fractured chalk reservoir with two major...

... (offshore, Mexico), the acid stimulations are normally performed with bullheading technique; however, there are some cases where it is complicated to stimulate the production zone uniformly, especially in large openhole sections that presents fractures. Selective acid treatment technique is an alternative...

... process depending on the polymer type. In the process, the crosslinking agent creates a three-dimensional structure that forms the crosslinked gel ( Rogovina et al., 1984 ; Rogovina et al., 2008 ). Abstract Loss circulation is frequent while drilling in naturally fractured or depleted reservoirs...

... the initial production requires robust gravel pack completions to be installed. Abstract High Rate Water Pack (HRWP) treatments are used in cased hole gravel packs with the intention of creating small fractures to bypass near wellbore damage and improve perforation packing. Despite their popularity...

... Abstract The fluid flow dynamics of the matrix and fractures are significantly different from each other. Fractures are high-permeability flow channels that serve as the main flow units. On the other hand, the Matrix takes up the majority of the reservoir volume and is generally regarded...

... Slickwater fracturing fluids are widely used in the oilfield to create fracture networks in tight rocks to promote oil and gas production. These fluids employ polymers, especially polyacrylamides, to reduce friction pressure, allowing faster injection and/or lower pumping pressure. These polymers...

..., such as propped hydraulic fracturing, are not included in the analysis. For the fractured wells, only the production from the bi-wing fracture is considered. No natural fracture networks are considered. In Ugursal et al. (2018) , we studied the productivity of acid fractured wells where the main acid...

... In summary, the presence of particulate material in natural fractures has important implications in hydrocarbon's productivity. To understand thoroughly the filtration, transport and entrapment processes, it was developed a multiphase/multicomponent dual permeability model. Phenomenological...

... and drilling induced fractures ( Ezeakacha et al., 2017 )( Yang and Chen, 2020 )( Yang et al., 2019 ). The design of LCM for successive fluid loss cure is complicated, the LCM properties such as type, shape, resiliency and particle size distribution are key factors to consider Alsaba et al., 2014...

... The main concern during WSI operations is the containment of the injected wastes within the targeted formation. Injectate's containment is ensured by selecting the candidate formation that has an overlaying layer with high stress to prevent vertical migration of the created fracture ( Warpinski...

... of fractured carbonate cores. 3-Pentanone was tested in two ways: 1.1-wt% 3-pentanone solution in reservoir brine (3pRB) and pure 3-pentanone (3p) as a miscible solvent. It was presented previously that 3p is a mutual solvent for oil and water, and can rapidly change the rock wettability to strongly water-wet...

.... Such results indicate the care must be taken in the amount of explosive fracture enhancement. Too much explosive ring or sleeve thickness (too much mass) can have detrimental effects, along with the intended positive effect of fracture enhancement. Fig. 9 displays the pressure evolution...