Fluid loss control method

Details Fluid loss control method Fluid loss control method

1991-09-24

1993-03-09

Neuder, William P.

Wells

Processes

Specific low fluid loss feature for fluid attacking formation

166284, E21B 4327, E21B 4328

Patent

active

051919311

ABSTRACT:
A method of temporarily reducing fluid loss into a subterranean formation from a well bore penetrating the formation by way of at least one perforation is provided. A first soluble particulate solid material is introduced into the formation by way of the perforation having a particle size whereby it bridges on the face of the formation and fills the perforation but allows fluid flow therethrough. A second soluble particulate solid material is introduced into the well bore having a particle size such that it bridges on the first particulate solid material and forms a seal over the perforation within the well bore.

REFERENCES:
patent: 3319716 (1967-05-01), Dill
patent: 3336980 (1967-08-01), Rike
patent: 3601194 (1971-08-01), Gallus
patent: 3750768 (1973-08-01), Suman, Jr. et al.
patent: 4716964 (1988-01-01), Erbstoesser et al.
Mahajan, N. C. and Barron, B. M.: "Bridging Particle Size Distribution, A Key Factor in the Designing of Non-Damaging Completion Fluids", Paper SPE 8792, Presented at the 4th Symposium on Formation Damage Control, Jan. 28-29, 1980, Bakersfield, Calif.
Abrams, A.: "Mud Design to Minimize Rock Impairment Due to Particle Invasion", JPT, (May 1977), pp. 586-592.
Sparlin, D. D. and Hagen, R. W.: "Soluble Fluid Loss Additives Can Reduce Well Productivities and Prevent Complete Gravel Placement", Paper SPE 14817, Presented at the 7th Symposium on Formation Damage Control, Feb. 26-27, 1986, Lafayette, La.
Mondshine, T. C.: "Completion Fluid Uses Salt for Bridging, Weighting", The Oil and Gas Journal, (Aug. 22, 1977), pp. 124-128.

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