(54) METHODS OF DOWNHOLE TESTING SUBTERRANEAN FORMATIONS AND ASSOCIATED APPARATUS THEREFOR
(75) Inventors: Paul David Ringgenberg, Carrollton;
Mark Anton Proett, Missouri City; Michael T. Pelletier; Michael L. Hinz, both of Houston; Gregory N. Gilbert, Missouri City; Harold Wayne Nivens, Runaway Bay; Mehdi Azari, Dallas, all of TX (US)
(73) Assignee: Halliburton Energy Services, Inc.,
Dallas, TX (US)
( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days.
(21) Appl. No.: 09/378,124
(22) Filed: Aug. 19, 1999
Related U.S. Application Data
(60) Provisional application No. 60/127,106, filed on Mar. 31, 1999.
(51) Int. C I. E21B 47/00
(52) U.S. CI 166/250.17; 166/186; 166/264
(58) Field of Search 166/250.01, 250.17,
166/264, 373, 386, 387, 319, 322, 185,
(56) References Cited
U.S. PATENT DOCUMENTS
Methods and apparatus are provided which permit well testing operations to be performed downhole in a subterranean well. In various described methods, fluids flowed from a formation during a test may be disposed of downhole by injecting the fluids into the formation from which they were produced, or by injecting the fluids into another formation. In several of the embodiments of the invention, apparatus utilized in the methods permit convenient retrieval of samples of the formation fluids and provide enhanced data acquisition for monitoring of the test and for evaluation of the formation fluids.
22 Claims, 6 Drawing Sheets