... Abstract The main scope of this paper is to expand the existing efforts exerted in the field of water hammering through the reprocessing of existing post-treatment data in the estimation of perforation efficiency and subsequent fracture geometry. The paper focuses on special applications when...

... Abstract A debris free, clean perforating tunnel with lower skin offers better reservoir connectivity, better production and slower decline. An equal entry diameter perf-hole (EHD) creates a uniform "sprinkler" system offering less resistance during stimulation and high cluster efficiency...

... Abstract Plug failures, sub-optimal stage design and variable proppant distribution across multi-cluster stages are common issues experienced during plug and perforate hydraulic fracturing. When one or more of these problems occur production potential can be significantly reduced. This case...

... completion history oil recovery perforation crosslinked gel reservoir surveillance reservoir characterization frac stage recovery crestal area al kindi hydraulic fracturing production control requirement economic geology permeability frac size production history samyd field Introduction...

... point perforation injection rate strategic evolution Introduction OHMS systems have been deployed in the Middle East for more than two decades, with significant evolution over time. The application of improved and custom tools to fit reservoir configuration and adding multi-entry point...

... Abstract Different from hydraulic jetting fracturing technique and plug-and-perf fracturing technique, it is not necessary to perforate for fracturing using reclosable casing sliding sleeves, the wellbore is connected with reservoir through sleeves, and the opening and closing are controllable...

... an order of magnitude. The alternative plug-perforate-stimulate-repeat process has been successfully implemented, but it incurs much higher costs than conventional methods and requires a high demand of well intervention operational resources. Placement control is obtained by perforating each flow zone...

... conductivity tests input to validate the post-fracturing net pressure history match. It was also realized that perforation strategy, including gun orientation, interval length, etc., is a critical factor for solids flowback control and must be optimized together with proppant selection. Flowback experiments...

... formation damage. (2) In a well with a parted liner, the target perforation interval was inaccessible. We perforated above the deformed region to access the target net pay from above. Due to the high Young's modulus at perforations, there is a huge risk of proppant settling and loss of wellbore-fracture...

... Abstract This paper discusses the first fiber-optic (FO) installation in a vertical high-pressure high-temperature deep gas well in PDO, Oman. A specially designed fiber-optic cable was successfully installed and cemented behind the production casing, which was subsequently perforated...

... by improving the ability of production engineers to generate more realistic predictions of gas and condensate production over time. upstream oil & gas relative permeability compositional model complex reservoir gas-condensate reservoir hydraulically fractured well matrix perforation...

... technologies used to re-stimulate previously fracked wells, is to run a second, smaller casing or tubular inside of the existing and already perforated pipes of the completed well. The new inner and old outer casing are isolated from each other by a cement layer, which prevents any hydraulic communication...

... Abstract Casing Deformation has plagued numerous unconventional basins globally, in particular with plug-and-perforation (also known as plug-and-perf) operations. This infamous issue can greatly influence 20-30% of field productivity of horizontal wells in shale and tight oil fields ( Jacobs...

... requirement clair calibration test complex reservoir tracer linear gel friction pressure decline operation perforation Introduction Reservoir Description The Clair oilfield is 75 km west of The Shetland Isles on the UK Continental Shelf (UKCS), within the extensional Faroe-Shetland Basin...

... in further advancement of the learning curve. Many aspects will be covered in this paper, that will describe how to facilitate the most effective hydraulic fracture placement and production performance, under these laminated conditions. These approaches will include the completion and perforation selection...

... Abstract This paper further develops an analysis of proppant distribution patterns in hydraulically fractured wells initially presented in SPE-199693-MS. A significantly enlarged database of in-situ perforation erosion measurements provides a more rigorous statistical basis allowing some...

... to be extremely poor, mainly due to: high drilling-induced formation damage and Fluids interaction within the reservoir (injection across the oil rim section). Several stimulation technologies have been applied to improve wells injection capability for pressure support optimization. Re-perforation via abrasive...

... was a pinpoint fracturing process, whereby the targeted placement is achieved through limited entry perforations and focused energy of the injected fluid. The subject pinpoint technology anticipates that the limited entry sandblasting perforation is created and then proppant laden fluid is pumped through...

... perforation interval (i.e., 3 ft). However, a compromise to mitigate convergent pressure loss in depletion was required, and the perforation interval was therefore set at 14 ft with provision made for robust step-down tests (SDT) and multi-mesh sand slugs. To further offset any near-well convergence pressure...

... Abstract Perforation erosion and consequential changes to perforation friction pressure have a significant practical influence on limited entry hydraulic fracturing treatments and have been comprehensively documented ( Cramer 1987 ), ( Crump, Conway 1988 ), Long (2015) and others. Both...