A state of the art review on the performance of high-pressure and high-temperature drilling fluids: Towards understanding the structure-property relationship of drilling …
Deepwater drilling using high-pressure and high-temperature (HPHT) drilling fluids draws
significant attention for the quest of increasing energy demand. In this regard, selecting …
significant attention for the quest of increasing energy demand. In this regard, selecting …
A comprehensive review of laboratory, field and modelling studies on drilling mud rheology in high temperature high pressure (HTHP) conditions
As the demand for hydrocarbons increases, the search frontiers for petroleum and natural
gas deposits keep being pushed towards unconventional terrains. An example of an …
gas deposits keep being pushed towards unconventional terrains. An example of an …
Effect of different weighting agents on drilling fluids and filter cake properties in sandstone formations
Weighting agents such as barite, micromax, ilmenite, and hematite are commonly added to
drilling fluids to produce high-density fluids that could be used to drill deep oil and gas wells …
drilling fluids to produce high-density fluids that could be used to drill deep oil and gas wells …
Prevention of barite sag in oil-based drilling fluids using a mixture of barite and ilmenite as weighting material
Drilling high-pressure high-temperature (HPHT) wells requires a special fluid formulation
that is capable of controlling the high pressure and is stable under the high downhole …
that is capable of controlling the high pressure and is stable under the high downhole …
Mitigation of barite sagging during the drilling of high-pressure high-temperature wells using an invert emulsion drilling fluid
S Elkatatny - Powder technology, 2019 - Elsevier
Sagging of particles is one of the most critical issues when drilling deep oil and gas wells
especially when the hole angle is greater than 30°. Accumulation of cuttings at the bottom of …
especially when the hole angle is greater than 30°. Accumulation of cuttings at the bottom of …
A combined barite–ilmenite weighting material to prevent barite sag in water-based drilling fluid
Barite sag is a serious problem encountered while drilling high-pressure/high-temperature
(HPHT) wells. It occurs when barite particles separate from the base fluid leading to …
(HPHT) wells. It occurs when barite particles separate from the base fluid leading to …
A review of different approaches for water-based drilling fluid filter cake removal
During the drilling operations, drilling fluids invade the drilled formations which could cause
a plugging or permeability alteration in the reservoir zone and consequently additional cost …
a plugging or permeability alteration in the reservoir zone and consequently additional cost …
Prevention of barite sag in water-based drilling fluids by a urea-based additive for drilling deep formations
Barite sag is a challenging phenomenon encountered in deep drilling with barite-weighted
fluids and associated with fluid stability. It can take place in vertical and directional wells …
fluids and associated with fluid stability. It can take place in vertical and directional wells …
Barite–Micromax mixture, an enhanced weighting agent for the elimination of barite sag in invert emulsion drilling fluids
Weighting agents are mixed with the drilling mud to provide the high density required to
control high-pressure high-temperature (HPHT) wells throughout the drilling operation …
control high-pressure high-temperature (HPHT) wells throughout the drilling operation …
Experimental and numerical analysis of effective enhancement of wellbore stability in shales with nanoparticles
One way to reduce wellbore instability in shales is to use agents capable of sealing pores
and micro-fractures. The main objectives are 1) to perform pore pressure transmission …
and micro-fractures. The main objectives are 1) to perform pore pressure transmission …