... gravity drainage (SAGD). While what they and other companies in the oil sands are doing is commonly described as shutting in wells, they are actually slowing the production from those wells. Some use reduced steam injections in a well pair, alternate cyclic injection among wells, or injections of gas...

... is the result of their high viscosity (greater than 10,000 cp). Therefore, thermal methods of heavy-oil recovery are used to ensure an inflow to producing wells. Among such methods are steam injection, huff ’n’ puff, and in- situ combustion. In the operator’s zone of activity, 149 heavy-oil deposits have been...

..., M. Shirdel, SPE, C. Muharam, T. Gorham, SPE, E. Riege, and G.B. Dulac, Chevron, prepared for the 2017 SPE Annual Technical Conference and Exhibition, San Antonio, Texas, USA, 9–11 October. The paper has not been peer reviewed. A horizontal-steam-injection pilot project has been under way...

..., prepared for the 2017 SPE Canada Heavy Oil Technical Conference, Calgary, 15–16 February. The paper has not been peer reviewed. Accurate monitoring of the ground deformation of a field under cyclic steam stimulation (CSS) can be used to calibrate predictive models, show the effectiveness of steam injection...

... allowed early depletion of the reservoir and later improvement in steam injection. A pressure drop of up to 20 bar was observed, and fluid-level measurement in the wells and PCP performance suggested good pressure communication between the wells. Despite some early challenges, first CSS production...

...Chris Carpenter This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 169513, “Case Study: Steam-Injection Step-Rate Tests Run in the Shallow Low-Permeability Diatomite Formation, Orcutt Oil Field, Careaga Lease, Santa Barbara County, California,” by Ramon...

... not be increased by fracturing or dilating the reservoir and it was decided to operate this injector at the maximum THP of 12.5 MPa. The con- tinuous steam injection started 7 June 2014, and, after approximately 8 weeks of steam injection, 15 wt% (cold) sol- vent was injected directly into the steam...

.... Because the field required the use of steam injection, Linn had to conduct more monitoring in order to maintain maximum production efficiency. Berry had begun a production management project, called the Reservoir Surveillance Initiative, in 2012. When Linn acquired the company, it continued the initiative...

... enhanced-oil-recovery pilots with vertical wells. Today, the oil is produced by gravity-assisted steamdrive. A permanent seismic system including 2D and 3D phases was installed in 2010 to monitor the reservoir’s evolution during steam injection. The monitoring lasted 2 years. During this time...

.... However, conformance should not come at the cost of excessive steam injection. A number of thermal inefficiencies (described in the complete paper) are unavoidable in the SAGD process. These collectively result in a deformed and nonoptimal steam chamber that undermines energy maintenance and lowers...

.... This applies generally to both primary- (cold) and enhanced-recovery operations, especially those involving some form of thermal recovery (e.g., various steam-injection methods, in-situ combustion, and electrical heating). The desirable or positive changes may include significant viscosity reduction...

...Adam Wilson This article, written by Editorial Manager Adam Wilson, contains highlights of paper SPE 153812, ’Investigation of Recovery Mechanism of Steam Injection in Heavy-Oil Carbonate Reservoir and Mineral Dissolution,’ by Guo-Qing Tang, SPE, Art Inouye, Vincent Lee, SPE, Dustin Lowry, and Wei...

... constructed from loose Athabasca sand. Results indicate that permeability changes and endpoint oil- and water-saturation variation are a function of loading boundary conditions. Overall, laboratory experiment results support increased permeability from steam injection in heavy oil; and, more importantly...

... Upstream Oil & Gas viscosity SAGD steam generator steam-assisted gravity drainage mechanism steam injection reduction steamflood injection conventional limit reservoir conventional steamflood thermal process wellbore enhanced recovery compressor deeper reservoir application DHSG...

... CO 2 (starting early with the long lead times for such projects), and other geopolitical factors. enhanced recovery petroleum engineering thermal method Upstream Oil & Gas SAGD steam-assisted gravity drainage steam injection porosity middle east EOR project eor potential recovery...

... been injected into light-oil low-permeability sands for almost as long, the mechanisms and effectiveness of this process are much less understood because of flow complexities in these sands and complexities of high-pressure steam injection. The full-length paper details the examination of thermal...

... changes in the reservoir. 1 9 2011 1 9 2011 1 9 2011 1 9 2011 2011. Society of Petroleum Engineers Reservoir Characterization information enhanced reservoir surveillance Engineering receiver transmitter Upstream Oil & Gas steam injection magnetic field...

...-scale operations. recovery factor important role reserves evaluation North America Upstream Oil & Gas President Surfactant Flooding asia pacific co 2 enhanced recovery necessity steam injection new technology middle east consequence exploration EOR Schlumberger Alain Labastie...

... by steam injection could be delineated from the high-resolution 3D-seismics results, and that this is more accurate than the reservoir-simulation model alone in the local-variation description of the chambers. Introduction It has been observed in laboratories that a large seismic-velocity change can occur...

... Upstream Oil & Gas completion lateral section Well Stimulation hydraulic fracturing Stimulation Program steam injection openhole lateral assembly placement injection horizontal well wellbore Directional Drilling lateral hydrojet Horizontal Openhole Completion leakoff fracture case...