Determination of Fracture Azimuth in Palnikovskoye Field Western Siberia Using Tiltmeter Technology Conference Paper uri icon

abstract

  • Abstract Knowing the direction or azimuth of the fracture orientation is important in development of a low permeability reservoir with horizontal wellbores. The orientation of the horizontal wellbore will determine if the hydraulic fractures are longitudinal or transverse to the wellbore. The angle of the wellbore to the hydraulic fracture not only affects the recovery factor from the reservoir, but also influences the completion strategy. The objective of this project was to measure the azimuth of the far field fracture during hydraulic fracture treatments to determine the preferential fracture direction. Prior to the mapping project it was assumed that preferential fracture orientation in Palnikovskoye filed is North-South. Initially the orientation of the horizontal section of the well 436 was designed transverse to the plane of fracture propagation. Using an array of 42 Surface Tiltmeters the fracture azimuth was measured during the hydraulic fracture treatments performed in the Palnikovskoye Field, Western Siberia. The fracture azimuth measured with the tiltmeters was different than estimated in the field development plan. Therefore, the direction of the horizontal wellbore was altered so the fracture would propagate transverse to the wellbore. Application of this technology is important in any field where fracture stimulation is important to field development. This was the first deployment of tiltmeter mapping in Russian Federation, several modifications were made for the standard procedures that have been developed from mapping thousand of fracture treatments in other parts of the world. Future fracture treatments in Western Siberia can now be mapped in a more efficient manner. First phase of the project included hydraulic fracture mapping on three vertical wells to estimate fracture orientation, and use this data to optimize drilling direction of the lateral in horizontal well. The second phase included hydraulic fracture mapping of five stages in the horizontal wellbore.

name of conference

  • All Days

published proceedings

  • All Days

author list (cited authors)

  • Mironov, V. S., Diyashev, I. R., Brovchuk, A. V., Stanley, G. R., & Davidson, B. M.

citation count

  • 2

complete list of authors

  • Mironov, VS||Diyashev, IR||Brovchuk, AV||Stanley, GR||Davidson, BM

publication date

  • January 2008