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Low shear pumps

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Journal Articles
SPE Prod & Oper 7 (03): 295–300.
Paper Number: SPE-19743-PA
Published: 01 August 1992
... hydrocyclones in low-pressure operations, research testing was undertaken to determine the most suitable pumping system. Successful field trials with a low-shear progressive cavity pump and a single-liner hydrocyclone were conducted in the U.S. These trials provided the basis for full-scale tests on the Hutton...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 14–18, 2018
Paper Number: SPE-190178-MS
... were either blended on site or purchased pre-blended in synthetic brine solutions. Pumped by a positive displacement, low-shear pump, the solutions flowed through a mass meter and were delivered to a distribution system component at various flow rates. For flow control devices, pressure differentials...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 9th North American Conference on Multiphase Technology, June 11–13, 2014
Paper Number: BHR-2014-E2
.... The addition of the lipophilic surfactant makes the mineral oil to resemble crude oil behavior. The oil-water mixtures were circulated with a low shear pump in a closed flow loop setup. Four different acrylic pipe diameters (16, 32, 60 and 90 mm) were tested. Water-in-oil stable emulsions were observed from...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 1992
Paper Number: OTC-6869-MS
... content levels for produced water discharge. The improved designs enhance separation at greatly reduced pressures. Where insufficient feed pressure exists, systems using correctly designed and operated centrifugal pumps result in a cost effective, low shear solution. Several field tests have been...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 2–5, 1988
Paper Number: SPE-18204-MS
... here can definitely be used as guide- lines in the optimization and development of sepa- ration processes. DETERMINING LOW SHEAR PUMP OPERATION Most pump manufacturers and pump experts say that a pump can be made to operate in a low-shear mode by keeping the rotational velocity down and oversizing...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–28, 2016
Paper Number: SPE-181615-MS
... to be most effective in addressing the issues of flow induced vibrations: The high pressure injection pumps are low shear positive displacement diaphragm pumps. Low shear pumps are considered for this application to reduce the Mother Solution from shearing. Each well is provided with this diaphragm pump...
Proceedings Papers

Paper presented at the Annual Technical Meeting, June 9–11, 1996
Paper Number: PETSOC-96-62
... a centrifugal pump can cause significant processability problems as noted in a four-fold increase in water content of the product. However, this problem can be prevented either by the addition of demulsifying chemical to the froth feed prior to being subjected to high shear rate or by the selection of a low...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 19–22, 2010
Paper Number: SPE-134505-MS
... use Smaller units (1300 BWPD) clean water successfully, but require significant maintenance and operator training Utilizing Low Shear Pumps An oil droplet size distribution survey was conducted on the Mars platform to determine the impact of pumps moving oily water from the Wet Oil Storage...
Proceedings Papers

Paper presented at the Offshore Technology Conference Asia, November 2–6, 2020
Paper Number: OTC-30271-MS
.... Bottomhole circulating temperature rheologies,shown in Table 1 , indicated a stable rheology to pump the slurry as well as the shear-thinning properties required. The flat rheological profile from low to high rheologies and nearly constant readings at surface and bottomhole conditions indicate a slurry...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 3, 2001
Paper Number: SPE-71658-MS
... are pumped with crosslinked guars. Current practice for fluid selection has been carried over from low permeability and consolidated formations where the fracture widths are narrower (higher shear rates) and leakoff is lower (lower cool down). These two issues lead to the use of high gel loading in low...
Proceedings Papers

Paper presented at the IADC/SPE International Drilling Conference and Exhibition, March 8–10, 2022
Paper Number: SPE-208730-MS
..., a decrease in viscosity causes the Reynolds and Taylor numbers to increase leading to turbulence. At low RPM, the shear thinning effect may dominate and result in a net decrease in friction pressure drop, while at higher RPM the turbulence effect may dominate and result in a net increase in friction pressure...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology Conference, August 22–24, 2016
Paper Number: SPE-180523-MS
... discusses a procedure in which the rheology of cement slurry can be tuned such that good displacement efficiency is attained at sufficiently low flow rates. The tuning should be such that the shear stress is almost invariant for varying shear rates. This reduces the friction pressures considerably during...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition and Conference, November 9–12, 2015
Paper Number: SPE-177788-MS
... drilling. In this scenario, LCMs would not stop fluid losses and were limited to pumping through the bottomhole assembly (BHA). The low-solids lost circulation solution was pumped through the drill bit. Having low solids and low rheology under shear, it can be easily pumped through the drill bit without...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 12–15, 2021
Paper Number: SPE-206650-MS
... and width of the fracture changes according to the results of modeling on a fully 3D grid model. At the same time, the full cover of the reservoir begins only after pumping 70 tons of proppant. As can be seen in the presented graph, the liquid has a high viscosity at low shear rates, but rapidly loses...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 15–18, 2021
Paper Number: SPE-207264-MS
... compressive strength and exhibit very low permeability and porosity with respect to properly designed PVF. The recommended density based on the previous experience to cure the losses across the target density is 10.5 lbm/galUS. Tailored design for shear rate dependent rheology cement The defined...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-196073-MS
... of pipe flow and patent-pending slot flow tests to study their behavior in various sections of a simulated fracture, including near-wellbore and far-field (low shear) fracture environments. The objectives for the project are defined as: Identify proppant transport characteristics (40/70 and 100 mesh...
Proceedings Papers

Paper presented at the SPE Middle East Oil & Gas Show and Conference, November 28–December 1, 2021
Paper Number: SPE-204878-MS
... the pumping of low viscosity, is discussed in detail. Performance evaluation of the new HVFR was conducted in the laboratory and compared to the lower viscosity FR. The study consisted of viscosity measurements at 70 and 180°F, compatibility with other additives, and proppant transport capabilities...
Proceedings Papers

Paper presented at the CORROSION 2021, April 19–30, 2021
Paper Number: NACE-2021-16711
... present a solubility challenge, and low water cuts can lead to difficulties in water oil separation, 3 especially if no heater treaters are available. This is especially true for jet pump applications due to the high shear that is generated by the jet pump itself. In addition, emulsions have been linked...
Proceedings Papers

Publisher: BHR Group
Paper presented at the 8th North American Conference on Multiphase Technology, June 20–22, 2012
Paper Number: BHR-2012-A005
... at the bottom of the pipe, with liquid filled impulse lines to the dp- transducers. The liquid is stored in a PVC-tank. The low shear (lobe type) positive displacement pump is connected to the storage tank through a 0.1 m i.d. and 10 m long connecting pipe. The flow rate meter is located downstream of the pump...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 15–18, 2021
Paper Number: SPE-207896-MS
... shears, such as high shears due to tubulars, and low shear in the fracture. If the crosslinker shear degrades, the fracturing fluid will lose its ability to transport proppant effectively inside the fracture, which will result in near wellbore screen-out. Therefore, it is of paramount importance...

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