Study on Linear Calculation Method for the Refracturing Total Stress Field

Abstract:

In order to accurately describe the impact is on the redirection of the secondary fracturing caused by stress field distribution of the reservoir , according to the superposition principle of the potential, builds the pore pressure induced model around refracturing wells ; introduces the fluid influence factor coefficient , builds initial artificial crack induced stress field model. Finally, the three stress applies the linear superposition principle .Obtaining the total stress field before the refracturing , provides a reliable theoretical calculation basis for the induced stress calculation

• Periodical: Applied Mechanics and Materials (Volumes 166-169)
• Pages: 3052-3055
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.166-169.3052
• Online since: May 2012
• Authors: Wan Chun Zhao, Ting Ting Wang, Chen Yan Sun, Ying Liu, Cai Ping Yang
• Keywords: Induced Stress, Potential., Refracturing, Stress Field

References

[1] Warpinski N.R. and Branagan P.T. "Altered Stress Fracturing,"JPT（Sept.1989）990-997.

[2] Siebrits，E.，Elbel J.L.，and Hoover R.S. Refracture Reorientation Enhances Gas Production in Barnett Shale Tight Gas Well"，SPE 63030，presented at the 2000 SPE Annual Technical Conference and Exhibition held in Dallas，Texas，1-4 October 2000.

DOI: 10.2118/63030-ms

[3] Wright ,C,A stewart ,D,W, Emanuel ,M,A and Wright ,W W Reorientation of propped refracture Treatments in the lost hills field paper SPE 27896,proceeding of the 1994,SPE western regional meeting, long beach ,Mar,23-25.

DOI: 10.2118/27896-ms

[4] Bruno M.S. and F.M. Nakagawa：pore Pressure Influence on Tensile Fracture Propagation in Sedimentary Rock，Int. J. Rock Mech. Min. Sci &Geomech. Abstr. Vol 28，No. 4，pp.261-273，1991.

[5] Lee Weijers,C J de pater: fracture reorientation in model tests, spe23790,(1992)