The Influence of XC-Polymer on Drilling Fluid Filter Cake Properties and Formation Damage

Abstract

The filter cake characterization is very essential for doing well selection of the drilling fluids that eliminates the drilling problems such as formation damage. A correct knowledge of filter cake properties gives petroleum engineers a tool for efficiently managing hydrocarbon production process of a field. This study aimed to experimentally investigate the effect of different concentration of XC-Polymer on filter cake properties, filtrate loss and formation damage to select the optimum concentration of the XC-Polymer. High Pressure-High Temperature (HPHT) filter press with ceramic disk device was used to conduct these experiments. Seven samples of water-based drilling were used in this study. The chemical compositions of the filter cake were described by using Scanning Electron Microscopy (SEM). The results show that the optimum concentration of the XC-Polymer in current study is 1.0 lb/bbl (1 g/ 350 ml); it was observed that 1g XC-Polymer per 350 ml of the drilling fluid is sufficient for appropriate optimum rheological efficiency. However, if more than 2 g. of XC-Polymer is added, the fluid loses its property and becomes almost immobile. Thus, at 1.0 g of the XC-Polymer concentration there is a less reduction in permeability of the ceramic disk. At this concentration, we got less reduction in permeability of ceramic disk and good properties of the filter cake. In addition, this is an indicator of less formation damage at this concentration of XC-Polymer.

Effect of barite and gas oil drilling fluid additives on the reservoir rock characteristics

“…This reduction in rock productivity is termed formation damage. Damage ratio is the property after damage divided by the original undamaged property (Blkoor and Fattah 2013). For oil permeability, the damage ratio may range from 0.3 to 1.0 depending on the type of the mud filter loss and type of core material.…”

Cellulose Nanocrystal–Polyelectrolyte Hybrids for Bentonite Water-Based Drilling Fluids

“…Fluid retention is of paramount importance to a drilling operation as the water in WDFs can penetrate into the formation, which results in significant clay swelling, damage to the formation, and eventual wellbore collapse. 66 Additionally, the solids in WDFs that under high pressure form a layer on the formation called the "filter cake" must not give rise to differential pressure sticking. Therefore, a low fluid loss volume and the formation of thin, low-permeability filter cakes are desirable for high- performance WDFs.…”

Avaliação de amidos modificados empregados na mineração para aplicação em fluidos de perfuração de poços de petróleo

“…Com base na Tabela 9 foi observado também que os fluidos aditivados com a amostra CMAN-AV apresentaram valores crescentes de espessura de reboco (de 0,698 a 1,002mm) à medida que se aumentou a concentração do polímero no fluido, o que difere dos resultados apresentados na literatura. Segundo GHAZ-ALI et al [2] e BLKOOR e FATTAH [34], o aumento da espessura do reboco é inversamente proporcional ao aumento da concentração do polímero. Essa proporcionalidade apresentada entre concentração e espessura do reboco para os fluidos F2, F3 e F4, ocorreu provavelmente devido a viscosidade elevada da amostra CMAN-AV e a concentração mais elevada do polímero na formulação.…”