US 11,808,123 B2
Systems and methods for managing skin within a subterranean wellbore
Patrick Calvert, London (GB); Gennaro Dello Ioio, Cambridge (GB); and Andrew Woods, London (GB)
Assigned to BP Exploration Operating Company Limited
Appl. No. 17/627,104
Filed by BP Exploration Operating Company Limited, Middlesex (GB)
PCT Filed Jul. 9, 2020, PCT No. PCT/EP2020/069392
§ 371(c)(1), (2) Date Jan. 13, 2022,
PCT Pub. No. WO2021/009000, PCT Pub. Date Jan. 21, 2021.
Claims priority of application No. 19187146 (EP), filed on Jul. 18, 2019; and application No. 19187148 (EP), filed on Jul. 18, 2019.
Prior Publication US 2022/0275713 A1, Sep. 1, 2022
Int. Cl. E21B 43/12 (2006.01); E21B 43/14 (2006.01)
CPC E21B 43/14 (2013.01) 20 Claims
OG exemplary drawing
 
1. A method of managing skin within a subterranean wellbore, the method comprising:
(a) adjusting a flowrate of formation fluids flowing through an interior of a production tubing located in the subterranean wellbore, and
(b) oscillating a drawdown pressure of the subterranean wellbore in a predetermined pattern in response to adjusting the flowrate of the formation fluids flowing through the interior of the production tubing, wherein the oscillation in the drawdown pressure comprises a plurality of alternating drawdown pressure increases and drawdown pressure decreases,
wherein the drawdown pressure increases of the predetermined pattern comprise increasing the drawdown pressure at a first rate, and
wherein the drawdown pressure decreases of the predetermined pattern comprise decreasing the drawdown pressure at a second rate that is different from the first rate.