Four different methods of equivalent diameter of the annulus have been considered in this hydraulic analysis. The correction factor model for frictional pressure drop was also considered in the investigations. All methods addressed the high deviation of the prediction from the experimental data, which ...
There are disclosed alternate embodiments of a double acting hydraulic jar having a single detent chamber having a restriction on the inner diameter of its outer tubular member through which detent means carried about the outer diameter of the inner tubular member may be moved in order to impart ...
The biodegradable fibers have a diameter of 2–200 μm, a length of ≥1 mm; an aspect ratio of greater than 100; or a density of 1–4 g/cm3. Another use for PLA in subterranean applications is the production of porous cements. Porous cements are sometimes wanted as well casings and ...
1/8”Hydraulic control line, also called capillary tube, mainly used for oil and gas field underground capillary pressure measurement. The temperature and pressure sensor (also known as a downhole permanent pressure gauge, generally a nitrogen cylinder) and the production string of the oil and gas...
Usually this occurs with large diameter and relatively thin casing, and it can be prevented by securing the casing to the rig floor. 7.10.2.2 Compressible simulations What we call compressibility encompasses several phenomena. The compressible simulation can consider density variation due to pressure ...
diameter of the artery itself. In vivo experiments using fluorescent dyes show similar results [36]. The size of the PAS is substantially larger than that shown in previous electron microscope measurements of fixed tissue. Mestre et al. demonstrate that the PAS collapses during fixation: they ...
PURPOSE: To separately control increase in the diameter of an excavated fluid hole extending through a jar and both upward and downward jarring actions. EVANS ROBERT W,ロバートダブリユーエバンス 被引量: 17发表: 1992年 Hydraulic jar and trigger device A hydraulic jar includes a tubular housi...
There is disclosed a double-acting hydraulic jar having upper and lower detent pressure chambers having upper and lower restrictions, respectively, formed on the inner diameter of its outer tubular member and through which upper and lower detent means carried about the outer diameter of the inner ...
When the BOP equipment is operational and the formation has been tested, the program is ready for drilling of the intermediate hole sections. This is where the diameter of the well bore is reduced and the depth increased significantly. With the intermediate casing sections installed, the production...
The ydraulic diameter of the annulus is 12mm for both heat exchang- rs. An EM flowmeter is designed for measuring the flowrate of liq- id LBE in a 316 stainless steel pipe with the diameter of 30mm. he flowmeter consists of a sensor and an electronic block which s integrated with a ...