Schlumberger Technology Corporation

Kira Vladimirovna Yudina

Xiaowei Weng

Mohan Kanaka Raju Panga

Sergey Makarychev-Mikhailov

Chad Kraemer

Artem Valeryevich Kabannik

Dmitry Sergeevich Kuznetsov

Roman Vladimirovich Korkin

Andrey Vladimirovich Fedorov

Alexey Vladimirovich Alekseev

Bernhard Rudolf Lungwitz

Konstantin Viktorovich Vidma

Maxim Pavlovich Yutkin

Dmitry Viktorovich Badazhkov

Jared Bruns

Sergey Sergeevich Skiba

Geza Horvath Szabo

Aleksandra Mikhailovna Khudorozhkova

Alexey Viktorovich Zinchenko

Andrey Vladimirovich Yakovlev

A method is offered to predict and prevent the event of fracture hit (direct fluid communication) between a parent well and a child (active) well. The growth of a child well creates 3D stress field in the vicinity of a parent well. The growth of a child well is simulated using the geomechanic-transport model. A model of interaction between the child well and parent well is provided. The simulations for different job designs create a set of pressure scenario in the parent both for the cases with and without fracture hit (fracture hit catalogue). Comparison (matching) of actual pressure data in the parent and child well with the pre-calculated pressure scenarios indicate the risk of fracture development with a fracture hit, which means a stop in fracturing stimulation.

Method of predicting and preventing an event of fracture hit

This method is designed to facilitate the well treatment with the possibilities for non-uniform/heterogeneous proppant placement in the extended and branched fractures produced by hydraulic fracturing. The essence of the method is to inject a proppant-bearing gel into the wellbore drilled into a productive formation. The low-viscosity fracturing fluid is injected into the wellbore together with the gel fluid (simultaneously or in turns). The method also provides for the injection of gas into the proppant-bearing gel and/or the low-viscosity fluid. The gas can be injected upstream of the junction point, at the junction point, or downstream of the junction point of the flows of the proppant-bearing gel and the low-viscosity fluid. The method further provides for the division of the gel fluid into the separate agglomerates with their subsequent injection into the fractures in the subterranean formation to form the proppant structures in the fracture.

Method of treating a well with the formation of proppant structures (variants)

A technique facilitates the study of complex fracture networks. A slot manifold is constructed with a system of branched thin channels, e.g. slots, which are joined at intersections. Fluid is flowed through the system of branched thin channels and through an intersection or intersections joining the channels in a manner which enables evaluation of fluid flow. A flow distribution device is used to allow or block flow of the fluid along specific branches of the system of branched thin channels to facilitate evaluation of fluid flow as a fluid moves through various angular changes and/or flow gap width changes from one channel to another.

System and methodology for evaluating fracture networks

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Novosibirsk, Russia

Kira Vladimirovna Yudina