... ABSTRACT: During the drilling operations, the fine drilled cuttings are mixed with the drilling fluid. Therefore, the properties of the drilling fluid and the filter cake are affected. In this paper, the effect of the variation in the mechanical properties for the drilled cuttings...

... Kalman Filter equation Accuracy of identification method for anisotropic mechanical constants of rock mass by local iterated Kalman filter Genauigkeit der Methode zur Feststellung von anisotropen mechanischen Konstanten einer Felsenmasse durch ein lokal iterativ ausgedehntes Kalman Filter Precision...

... Abstract This paper discusses the successful design, testing, and application of a new filter-cake breaker technology based on lactic acid chemistry. This technology provided prolonged delay in filter-cake breakthrough time at 220°F, which ensured coverage of the entire open hole, improved...

... porosity fraction is unavailable in the literature. Another approach to modeling of the external filter cake formation is the method of continuous mechanics with detailed derivation of momentum balance equations ( Khatib, 1994 ). It describes the particle compaction in the cake, the cake...

... measurements of concentrated, broken gel exhibited Carreau-type viscosity behavior that could mimic an apparent yield point. A new rheology model built on those measurements was used to upgrade a fracture cleanup and chemistry simulator (FCCS) to study potential cleanup mechanisms of gel filter cake during...

... regression method uses the following equations: Case Study The effect of filtering the core data set is shown in Figures 3a and 3b , for the Autoscan and the Least Squares methods of calibration, respectively. The data used is the minimum in-situ horizontal stress (σ h ), which is required in many...

... cartridge filter operational issue mechanical filter Diethanolamine differential pressure Abstract Saudi Aramco Gas Operations can process over 8 BSCFD of gas. Diglycolamine (DGA) is the most widely used Amine in gas treatment facilities. Similar to other types of amines such as monoethanolamine...

...) used in OAG and IGD plants. Amines should be color free and devoid of particulate matter. This is achieved through activated carbon and mechanical filters so that amine quality is within established limit. Results, Observations and Conclusions Laboratory analyzes amines sample (DEA & MDEA...

... to a vapor space below the hat tray. The lean amine is filtered on a 15% sidestream using manual flow control. Filtration consists of a mechanical filter with 5 micron elements followed by a bulk charcoal filter. The amine then flows through another mechanical filter to remove charcoal fines. Make up...

... solution, a side stream of the lean carbonate flow passes through a filtration pump and a mechanical filter of cartridge type. The cartridge is loaded with cotton disposable filters, of 10 microns size. In addition to the particulate filtration system, Activated Carbon Filters, 2T-308A/B are installed...

... flow rates produced higher dynamic filtration rates. The dynamic filtration rates decreased prior to day four of the tests, after which no significant changes were observed. Removal of the external wellbore filter cake using mechanical scrapers did not significantly change the dynamic filtration rate...

... comparable to the pressure data in two ways: • The sensor housing is designed to ensure good and stable coupling to the water bottom, which is particularly important where good vector fidelity is required • A mechanical filtering device decouples the cable from the sensor package, thus ensuring...