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Coalescers

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Proceedings Papers

Paper presented at the Middle East Oil Show and Conference, March 15–18, 1997
Paper Number: SPE-37720-MS
... the coalescence process inside the CFP separator. Consequently, the oil-water separation process could be improved and the quality of water effluent will be better. To fulfill this target, a complete thorough study had been done to simulate the operation of the CFP separator under all possible operating...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1131
... ABSTRACT: Fracture coalescence is of great significance in the damage and fragmentation behavior of brittle materials. To better and thoroughly study the process of fracture coalescence, numerical investigation of gypsum specimens with different pre-existing flaws under different loading...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 9–12, 2020
Paper Number: SPE-203475-MS
... coalescence technology. This paper discusses the performance test results of this technology. Physical separation of emulsified water from produced crude oil is challenging due to the small water droplets, presence of surfactants covering the water droplets that inhibit the otherwise natural coalescence...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-3115
... ABSTRACT It has been proved that injecting bubbles into a turbulent boundary layer can reduce the frictional drag on the plate. Many studies have simulated this problem using Euler-Lagrange method to accurately calculate the motion of bubbles. However, bubble coalescence and breakup have...
Proceedings Papers

Paper presented at the 54th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2020
Paper Number: ARMA-2020-1681
...). This study aims at investigating the crack coalescence patterns in gypsum specimens containing 2 types of flaw geometries: an overlapping geometry (S=2a C=a β=30°) and non-overlapping left-stepping geometry left-stepping (S=0 C=−2a β=30°). Both experimental and numerical results are expected to enhance...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0388
.... The paper discusses experimental observations about the influence of different flaw geometries on crack propagation and coalescence through the interface, as well as the role that a frictional interface has in generating new cracks or affecting the cracks that initiate from the flaws. equation...
Journal Articles
SPE Prod & Oper 34 (03): 508–519.
Paper Number: SPE-195591-PA
Published: 05 April 2019
...‐and‐observe (P&O) algorithm is adapted for a novel centrifugal pump to continuously optimize the point of operation. The novel pump coalesces and increases the size of oil droplets in the produced water, resulting in a unique relationship between the coalescing effect and the point of operation...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-629
... of flow rate increase through the propagation and coalescence of pre-existing fractures in granites under triaxial conditions. Results show that the pre-existing fractures can be propagated and coalesced at treatment pressures lower than the minimum principal stress during water injection. Also...
Journal Articles
SPE Prod & Oper 33 (04): 857–865.
Paper Number: SPE-188772-PA
Published: 10 June 2018
..., for the new pump. The investigation shows that the coalescing centrifugal pump always increased the separation efficiency of a downstream hydrocyclone. Furthermore, it is shown that the pumping pressure can be adjusted to maximize the improvement. Experimental results demonstrate how pumping conditions...
Journal Articles
OIJ 2018 (06): 136–139.
Paper Number: OIJ-2018-06-136-139-RU
Published: 01 June 2018
...I. I. Mazein; A. V. Usenkov; A. Yu. Durbazhev; A. V. Lekomtsev; P. Yu. Ilyushin The PDF file of this paper is in Russian. We conducted field tests of coalescers installed in capacitive devices for oil dehydration and desalting of mobile unit for well production treatment. Until now...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 13–16, 2017
Paper Number: SPE-188772-MS
... Abstract A novel centrifugal pump, which increases oil droplet sizes in produced water, has been developed. This paper investigates a concept of pumping pressure optimization with respect to downstream separation efficiency, for the new pump. The investigation shows that the coalescing...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 16–18, 2017
Paper Number: SPE-187741-MS
... enter the photodiode; the random emissions on the oscillogram correspond to the high-frequency pickup. Figure 3 Oscillogram corresponding to the non-suppressed coalescence of gas bubbles. Behind the telescopic system, a cylindrical column of quartz glass KU-1 (3) with an external diameter...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-1015
... ABSTRACT: Fracture coalescence tests in rocks and rock-like materials have been extensively conducted in the laboratory over the past 40 years. Its mechanism has not been fully understood. Acoustic emission monitoring and moment tensor inversion technique cast a light in investigating...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0943
... to the wellbore. Regions of rock containing microcracks near coalesced macro-scale fractures oftentimes behave differently than the original matrix material due to the permanent structural changes. These changes can manifest themselves in mechanical and petrophysical alterations from the original matrix...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0504
... on the specimen surface by measuring displacements during loading. The experimental results indicate that specimens with the smooth interface have lower initiation and coalescence stresses than with the rough interface. Also, a smooth interface seems to arrest tensile cracks reaching the interface, while shear...
Proceedings Papers

Paper presented at the Offshore Technology Conference Asia, March 22–25, 2016
Paper Number: OTC-26422-MS
... of ductile fracture, but determination of the EMC coefficients for particular material can involve extensive specialized material testing. Theoretical work has focused on developing EMC coefficients with an intermediate level of theory involving cell modeling of void coalescence for high triaxiality (tensile...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, December 6–9, 2015
Paper Number: IPTC-18542-MS
... Abstract In order to improve the separation efficiency of the hydrocyclone, a new type of cyclone separator is proposed. According to computational fluid dynamics method, a new cyclone separator, coalescence-cyclone separator, is numerically simulated by Fluent software based on a co-rotating...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 28–30, 2015
Paper Number: SPE-174763-MS
.... Early stage implementation of electrocoalescence through VIEC (Vessel Internal Electrostatic Coalescer) technology allows for a much more efficient and cost effective means of resolving the challenges in the separation train. The VIEC technology was the OTC “Spotlight on new Technology” award winner...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-313
... Abstract Fracture coalescence has been identified as one of the factors playing an important role in the behavior of brittle materials. In this paper this phenomena is simulated by using an in-house implementation of the Combined Finite-Discrete Element method (FDEM). Key aspects of FDEM...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-229
... Abstract The dynamic behavior of crack propagation and coalescence in rock is investigated using the distinct lattice spring model (DLSM). Discontinuum based element model has been proven as a promising tool in the study of dynamic fracture in brittle materials like rock. As a newly developed...

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