... Abstract The diagnostic fracture injection test (DFIT’) has become a standard well-test method applied to obtain critical information (e.g., minimum in-situ stress, reservoir pressure and permeability, etc.) for the evaluation of low-permeability (‘unconventional’) reservoirs. In modern...

... pressure transient testing reservoir geomechanics dfit injector relaxation cement hydraulic fracturing geological subdiscipline longitudinal fracture paper fiber tortuosity signature perforation recharge pipe Introduction This paper discusses observations from unique diagnostic...

.... The workflow included: A Diagnostic Fracture Injection Test (DFIT) performed to measure closure pressure and Far-field Fracture Extension Pressure (FFEP) in the treating well. Frac-Stage Pressure Fall-off Analyses for comparison of net pressure measurements for full-scale fracturing stage rates, volumes...

... fracture net pressure dfit gradient reservoir characterization drillstem testing fracture dimension calculation pressure response petroleum engineer Introduction The calculation or measurement of pumped hydraulic fracture dimensions (length, width, and height) is the essence of completions...

... for analyzing DFIT in geothermal reservoirs. The applicability of our technique is demonstrated using several test data from the Utah FORGE project. The main advantage of our methodology is that it does not depend on any assumption regarding fracture geometry and rock properties. Also, unlike most similar...

... to estimate the extent of the hydraulic fractures. Monitoring wells equipped with downhole gauges, DFITs from multiple new wells close to an existing (parent) well, and calculation of formation pressure from drilling data are among the methods used for pressure depletion mapping. This study focuses...

... ). A DFIT was performed in the V1 well before the MDD to measure local stress and pore pressure. Following the MDD, a small propped fracture treatment was pumped in the V1. The H1 well was then produced for 4 months and DFITs pumped in the V1 and V2 wells. This comprehensive fracture diagnostic dataset...

... using the Pressure Transient Analysis (PTA) workflow for Diagnostic Fracture Injection Tests (DFITs) described by Bachman et al (2012 , 2015 ) combined with simple PKN and GDK fracture models to represent the hz and vertical plane fracture components. DFIT analysis techniques and interpretation...

... published work, we present here an explicit computation of the width of a propagating fracture in a three dimensional mechanical stratigraphy (including moduli and stress profiles). Using the fracture width calculation (in conjunction with PDL) as the basis, we have simulated DFITs and used the result...

... Abstract The goal of this study is to explain the full spectrum of flow patterns observed before and after closure during diagnostic fracture injection tests (DFITs) by considering the dynamic nature of fracture geometry, variable leakoff rate and afterflow volume caused by wellbore storage...

... well landing zone reservoir proppant vertical well dfit Introduction Many hydrocarbon-bearing basins contain multiple prospective targets throughout the stratigraphic column. Basins such as the Anadarko have shown repeated economic success in multiple horizontal targets, some of which...

... in an unconventional reservoir will sample a volume of reservoir rock that is representative of the whole. In other words, a well test should sample a representative elementary volume, which is the smallest volume of rock with properties characteristic of the whole. Diagnostic fracture-injection/falloff tests (DFIT...

... Abstract Diagnostic fracture injection tests (DFIT) are commonly used to characterize stress and reservoir properties in unconventional reservoirs. Although simple in concept, interpreting DFIT results can be difficult because several factors can cause results to deviate from ideal DFIT...

... fracture injection tests (DFIT) have been employed to create an analyzable pressure decline response, as well as to derive the minimum horizontal stress via fracture closure identification. This paper is a study of numerous DFITs conducted in unconventional reservoirs throughout the world to evaluate...