Static Bottom-Hole Pressures in Wells

Abstract

A compote procedure is presented in this article for estimating static pressure gradient. The procedure integrates reservoir properties; temperature, pressure, depth, and density to calculate pressure drop in wellbore. The procedure constraints are intended to ensure that an accurate pressure gradient is obtained.

Investigation on the Relationship between Wellhead Injection Pressure and Injection Rate for Practical Injection Control in CO2 Geological Storage Projects

“…Based on that, the more convenient method is to control the wellhead injection pressure [13], which has been verified sufficiently in In Salah [14] and Ketzin and Shenhua CCS projects [13,15]. To obtain the maximum allowable wellhead injection pressure for CCS projects, Carroll and Lui [16] and Hashim and Maloka [17] analyzed the main influential factors of wellhead pressure, and Streit and Hillis [18], Rutqvist et al [10], and Gapillou et al [19] proposed some approximate 2 Geofluids estimation methods and engineering experience. Subsequently, Bai et al [8] developed a new fast explicit finite difference method (FEFDM) for calculating the wellhead pressure under assumption of single reservoir, and Wu et al [20] presented a new estimation method of wellbore pressure from the perspective of engineering.…”

Numerical investigation of the influence of interaction between wellbore flow and lateral reservoir flow on CO2 geological sequestration

“…In studies of CO 2 and wellbores, Ng et al (1999) and Hashim and Maloka (2006) have constructed wellhead and bottom-hole pressure determination equations using analytical and numerical methods depending on a single injection or production well. Lu and Connell (2008) developed a one-dimensional mathematical model to study the flow behavior of carbon dioxide and its mixtures inside a non-isothermal injection well.…”