... Abstract CO 2 fracturing and flooding have become key technologies for increasing shale oil recovery. However, for shale reservoirs with high wax content, the production data from Daqing oilfield indicate lower later-stage recovery rates and a significant occurrence of wax deposition during...

... it to provide steric stabilization. Abstract Scale inhibitor squeeze (SISQ) treatment is an established method for offshore fields which allows an extended effectiveness of the scale inhibitors in preventing scale deposition over time. Some of the main issues in SISQ campaign is the short squeeze lifetime...

... implementation deposition wax remediation holistic approach evaluation society water management concentration extending well production life objective inhibitor inorganic scale inhibition application scale inhibitor squeeze petroleum engineer Introduction The PM3 Commercial Agreement Area...

... in improving the base production decline from 45% to 12%. This paper addresses the prevailing paradigm that scale formation does not occur in new wells. It provides evidence that scale deposition in steamflood fields is accelerated because of temperature rises. This valuable information holds significant...

... Table 1 Crude Oil Properties for Field 23 Crude Oil Samples Wax Appearance Temperature (°C) Pour Point Temperature (°C) Wax Content (wt%) Wax Deposition Mass Flux (g/m 2 .h) Method CPM ASTM D5853 HTGC Method Cold Finger Header, D mix Note 1 37 17 15.5 77.6 (1...

..., incompatible hydrocarbon fluids amongst other things experienced during production can cause various flow assurance related issues. Examples of such issues issues include stable emulsions, sand production, bacterial activity and various solids production and deposition. Typical solid deposits in the system can...

... occurred in multiple mechanism related to incompatibility of the workover fluid and organic deposition. Then, possible well treatments were listed with pros and cons by considering post water production related to the carbonate reservoir properties. Subsequently, chemical matrix injection was ranked based...

... Abstract Asphaltenes in the production process often cause significant damage to oil production operation through the continuous growth process (precipitation followed by aggregation and finally deposition) of their particles. To mitigate the asphaltene-induced problems, Asphaltene Inhibitor...

... Abstract The formation of CaCO 3 mineral scale is a persistent flow assurance problem in the oil and gas industry. It deposits at various locations with different levels from reservoir to topside flowline. It could restrict well intervention, block flowline and reduce production. To make...

... In this work we would focus mainly on the initial stage of wax deposition i.e. gelling phenomenon. The primary motive behind focusing on this stage of wax deposition, can be understood in a way that before proceeding to simulate the other stages of wax deposition, it is imperative to understand...

... coefficient powder-to-pellet ratio bvoh powder well intervention production enhancement deposition particle coefficient powder crystallinity agent fluid loss control multistage fracturing concentration solubility plug fracture spurt loss filtration resistance bvoh temperature condition...

... Abstract Recent studies revealed that field deposits collected from production tubing of offshore wells often exhibit compositional varieties pointing to a more complex fouling process under field operations than original predictions purely based on asphaltene instability. Asphaltenes...

... was identified. Subsequently, more detailed laboratory testings were performed, including rheology measurements, coaxial shearing paraffin deposition and dynamic wax flow loop measurements. Field trial was later conducted to gradually obtain the optimum dosage while closely monitoring both onsite and in the lab...

... Patchawarra formation porosity deep coal play Reservoir Characterization north patchawarra trough coal conductive fracture stimulation stress state Australia permian succession fracture sandstone fracture stimulation Cooper Basin deposition Introduction The Cooper Basin is located...

... Abstract Carbon dioxide miscible flooding is known as a very efficient and challenging enhanced oil recovery (EOR) method. Besides the high oil recovery efficiency, the asphaltene precipitation and deposition is believed to be triggered by a perturbation of the thermodynamic equilibrium present...

... Abstract This paper presents the organic and inorganic scale depositional issues in Field P, a marginal oilfield located offshore Peninsular Malaysia. Routine well interventions such as running pressure surveys, performing zone-switches and gaslift valve change-outs is not a straight-forward...

... Abstract Bohai J Oilfield has typical characteristics of high wax content and wax precipitation point (WPT). Wax deposition in the tubing had been an ongoing problem after this Oilfield came on stream, which caused significant productivity losses. Various methods of wax control and removal...

... concentration greater than 1% by volume, especially during wet drilling operations. Although suspended sand concentration in production pipelines is nominally much less than 1% when adequate sand control is deployed downhole, there are flow velocities below which result in sand deposition, accumulation...

... validity was checked by comparing with experimentally measured weight data of asphaltene deposits during the ADT. Assuming natural depletion, the APEs were compared with variation of vertical lifting curves (VLC) in tubing. Two VLCs were assumed to represent early and late field conditions (i.e. high...

... Abstract Precipitation and deposition of hydrocarbon solids such as asphaltenes and wax are some of the major challenges facing the oil and gas processing and transportation industry. Deep-water, high pressure and high temperature (HPHT) environment are currently being explored for meeting...