US 12,286,871 B2
Method for preventing influx of fluid during fracturing of an offset well
John W. Ely, Montgomery, TX (US)
Assigned to Ely and Associates, LLC, Houston, TX (US)
Filed by Ely and Associates, LLC, Houston, TX (US)
Filed on Jul. 11, 2023, as Appl. No. 18/220,566.
Application 18/220,566 is a continuation of application No. 17/949,146, filed on Sep. 20, 2022, granted, now 11,697,976.
Application 17/949,146 is a continuation of application No. 17/134,893, filed on Dec. 28, 2020, granted, now 11,448,036, issued on Sep. 20, 2022.
Application 17/134,893 is a continuation of application No. 16/922,689, filed on Jul. 7, 2020, granted, now 10,895,126, issued on Jan. 19, 2021.
Application 16/922,689 is a continuation of application No. 14/979,560, filed on Dec. 28, 2015, granted, now 10,704,356, issued on Jul. 7, 2020.
Prior Publication US 2023/0358124 A1, Nov. 9, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. E21B 43/26 (2006.01); E21B 29/02 (2006.01); E21B 33/138 (2006.01)
CPC E21B 43/26 (2013.01) [E21B 29/02 (2013.01); E21B 33/138 (2013.01); E21B 43/261 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for preventing influx of fluid into a first well having casing during or immediately after the time of a hydraulic fracturing treatment of a plurality of offset wells completed in the same reservoir, comprising:
providing a quantity of ball sealers and degradable particles;
injecting the quantity of ball sealers or degradable particles together into the first well in a carrier fluid to plug or partially plug perforations or ports in the casing of the first well; and
hydraulically fracturing the plurality of the offset wells while maintaining pressure in the first well so as to maintain plugging or partial plugging of the perforations or port in the first well, thereby preventing influx of fluid from the plurality of the offset wells into the first well as a result of hydraulically fracturing the plurality of the offset wells.