The annular foam breaker is one which uses the vacuum and shear force generated by the Coanda effect to break foam. Its effectiveness in destroying drilling foam has been test in wellbore flow simulation loop experimental stand. Experimental results showed that the operating pressure of the annular foam breaker should be larger than 0.6MPa and the stabilizers concentration of the foam drilling ...

Perforation in internal upset transition zone is one of the main failure styles for drill pipes. Due to the flow channel specificity of upset transition zone, in this paper, drill pipe failure analysis from the point of flow erosion was put forward. Flow field of drilling fluid in the internal upset transition zone of U127 mm API IEU S135 drill pipe under various conditions were obtained using ...

There has been an increasing interest in seafloor exploitation such as mineral mining in deep-sea hydrothermal fields, but the environmental impact of anthropogenic disturbance to the seafloor is poorly known. In this study, the effect of such anthropogenic disturbance by scientific drilling operations (IODP Expedition 331) on seabed landscape and megafaunal habitation was surveyed for over 3 y...

The continuous development of global economy with decreasing in available hydrocarbon sources and increasing discovery and extraction costs due to decrease in-situ oil and gas reservoir, displays the necessity of using new techniques for the improve rate of penetration and productivity in well. Nanotechnology has already contributed significantly to technological advances in the energy industri...

Problems such as well loss and collapses in deep shale gas drilling are most often due to the development of cracks formation, resulting significant leaks fluid, sticking burrowing tools, other engineering accidents. In addition, horizontal sections wells very long issues friction, rock transport, formation contamination loom large. As a result, performance fluids directly affects efficiency, a...

The key process parameters for the filtration loss of water-based drilling fluid (WBDF), using Arachishypogaea shells cellulose (AHSC) were optimized two-level-two factor full factorial design Response Surface Methodology (RSM). This research reveals outcomes investigations, carried out on formulation a sustainable system, where AHSC is used as additive having no toxicity and high biodegradabil...