..., the mining machine underwent crucial upgrades for the next phase of trials. These enhancements included the integration of a lightweight nodule collector and structures, lumped nodule crusher, slurry feeder, and pumping system. Slurry transportation was achieved using the nodule entrainment method...

... completion installation and operations nodule well intervention rigid riser slurry riser proceedings mining concentration inertia diameter simulation production enhancement spike requirement downhole intervention efficiency calculation thirty-fourth pipe international ocean...

... under non-rated and non-normal conditions. Additionally, we analyzed the slurry characteristics within the pump when it operates under unfavorable conditions. INTRODUCTION The oceans are rich in mineral resources, and the seabed several thousand meters below is rich in many minerals that are scarce...

... drilling fluid fluidity compatibility anti pollution agent drilling fluid management & disposal agent viscometer retarder organic salt drilling fluid pollution drilling fluids and materials anti pollution spacer pollution agent slurry strength co 2 cement slurry application...

... cement chemistry cement property leak thixotropic cement slurry slurry cement slurry thixotropy casing and cementing cement formulation agent strength drilling fluids and materials evaluation thixotropic agent cotton fiber fracture selection operation experiment leakage...

... ABSTRACT In response to a series of problems such as poor compatibility, unclear contamination sources and unclear contamination mechanism between the cement slurry and sulfonated drilling fluid under high temperature conditions, a series of single factor experiments were conducted to screen...

... drilling fluid formulation drilling fluid management & disposal cement property interface drilling fluids and materials preflush cement slurry cement chemistry drilling fluid selection and formulation drilling fluid chemistry strength compressive strength bonding strength nano...

... be confirmed in a limited area, and (3) the investigation is time consuming. As an example, Fig. 1 shows the relationship between the unconfined compression strength ratio (qui / qu_28days) and the curing age of soil improved with cementitious slurry, based on the curing age of 28 days (Taiheiyo cement...

... geologist cement chemistry geology rock type drilling fluids and materials hollow glass bead cement property casing and cementing asia government cement formulation slurry system construction performance long open hole section cement slurry system rheological property particle...

... to observe sedimentation phenomenon of fine sediments. 12 experiments were selected for further analysis in group S1, S4 and S5 . The measured velocity and calculated turbulence demonstrated that the inlet slurry via diffusers play a dominant role in flow field and frequency and amplitude of velocity...

... ABSTRACT Aiming at the cementing problems of high oil and gas activity and high gas channeling risk in complex high pressure natural gas wells, an ultra-high density cement slurry system (2.40-2.60 g/cm 3 ) was designed. To ensure that the system has a good foundation, based on the principle...

... ABSTRACT Based on the colloidal stability theory, the hydrophobic associating powder anti-dispersant (HAPA) for high water cut oil and gas well cementing was developed to solve the problems of water intrusion in high water-bearing formations. Compared with conventional cement slurry, the anti...

... casing and cementing rock type cement property compressive strength geology cement slurry slurry dosage upstream oil & gas asia government cement formulation strength retarder geologist cement chemistry china government cement stone water loss zyj-1l cement slurry system...

... ABSTRACT It is usually difficult to balance the contradictory requirements for pumping displacement performance and long-term sealing mechanical performance of high-density cement slurry. To achieve a good quality high-density cement slurry, cementing performance is based on balancing...

... and adjusting their proportions and has studied its complementary additives and optimized the cement slurry formula. Finally, a set of ultra-low temperature early strength cement slurry system has been formed, which has adjustable thickening time, good rheology and normal thickening line shape. The strength...

... ABSTRACT Pile foundation is widely used to support offshore wind turbines in Donghai Bridge Wind Farm, China. The scour problem around the pile group is found severe and efficient scour protection is a concern of offshore wind farm here. A new scour countermeasure using solidified slurry have...

... time fluid loss control frame filter press control system plate frame machine mud cake interface efficiency filtrate lake sediment construction parameter feed pump optimization slurry ABSTRACT Diaphragm plate and frame filter press has the characteristics of good stability...

... ABSTRACT The comb-type salt-resistant polycarboxylate dispersant (CSPD) was developed to solve the shortcomings of the poor dispersibility of the current dispersant in saline cement slurry. CSPD has salt-to-saturation resistance, poor thixotropy, and the use in saturated saline water prepared...

... ABSTRACT Gas hydrate dissociation would damage the cementing quality seriously due to the hydration exothermic of cement slurry. Therefore, the well cement slurry with low hydration exothermic is necessary. The design of well cement slurry with low hydration heat mainly includes three steps...

... ABSTRACT The fractures in Permian stratum of Shunbei oil and gas field are well developed, the formation fracture pressure is low, and the leakage problem is very severe during the cementing jobs. It is difficult to solve this problem by using traditional low-density cement slurry and staged...