Method for acid stimulating a subterranean well formation for improving hydrocarbon production
AssigneesHalliburton Energy Services, Inc., Petro-Canada Inc.
InventorsAlick Cheng, Jim B. Surjaatmadja, Matthew J. Rees, Abraham Khallad, Keith A. Rispler
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Abstract
A method of stimulating a downhole formation according to which a plurality of jet nozzles are located in a spaced relation to the wall of the formation to form an annulus between the nozzles and the formation. An acid-containing, stimulation fluid is pumped at a predetermined pressure through the nozzles, into the annulus and against the wall of the formation. A gas is pumped into the annulus so that the stimulation fluid mixes with the gas to generate foam before the mixture is jetted towards the formation to impact the wall of the formation.
Claims22
A method of stimulating a downhole formation comprising locating a plurality of jet nozzles in a spaced relation to the wall of the formation to form an annulus between the nozzles and the formation, pumping an acid-containing, stimulation fluid at a predetermined pressure through the nozzles into the annulus and against the wall of the formation, and pumping a gas into the annulus so that the stimulation fluid mixes with the gas to generate foam before the mixture is jetted towards the formation to impact the formation wall.
Dependencies are inferred from the claim text.