Early evaluation system

Wells – Processes – With indicating – testing – measuring or locating

Patent

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Details

166264, E21B 4700

Patent

active

055402801

ABSTRACT:
A number of improvements are provided in early evaluation systems which can be utilized to test and/or treat a subsurface formation intersected by an open uncased borehole. An outer tubing string is run into the well and has a packer which is set in the open, uncased borehole above the subsurface formation of interest. An inflation passage is provided and preferably has an inflation valve associated therewith which is operated by manipulation of the tubing string. A communication passage communicates the interior of the outer tubing string with the borehole below the packer. An inner well tool is run into the outer tubing string and engaged therewith, whereupon it is placed in fluid communication with the subsurface formation to either sample the formation or treat the formation. Preferably, a circulating valve is provided above the packer to allow fluid circulation in the well annulus during the testing procedure to prevent differential sticking of the outer tubing string. The inner well tool may include an inner tubing string, preferably coiled tubing, which may include annulus pressure responsive tester valves therein.

REFERENCES:
patent: 1899497 (1933-02-01), Doherty
patent: 2125159 (1938-07-01), Hanes
patent: 2222829 (1940-11-01), Humason et al.
patent: 2280785 (1942-07-01), Boynton
patent: 2392683 (1946-01-01), McWhorter
patent: 2497185 (1950-02-01), Reistle, Jr.
patent: 2677790 (1954-05-01), Arps
patent: 2702474 (1955-02-01), Johnston
patent: 2751016 (1956-06-01), Watzlavick
patent: 3103811 (1963-09-01), Ayres et al.
patent: 3107729 (1963-10-01), Barry et al.
patent: 3111169 (1963-11-01), Hyde
patent: 3175392 (1965-03-01), Tharalson et al.
patent: 3182725 (1965-05-01), Moore
patent: 3279249 (1966-10-01), Tocanne
patent: 3327781 (1967-06-01), Nutter
patent: 3353612 (1967-11-01), Bannister
patent: 3412607 (1968-11-01), Jensen
patent: 3441095 (1969-04-01), Youmans
patent: 3448611 (1969-06-01), Lebourg
patent: 3459264 (1969-08-01), Olson et al.
patent: 3500911 (1970-03-01), Farley et al.
patent: 3577781 (1971-05-01), Lebourg et al.
patent: 3577783 (1971-05-01), Whitten et al.
patent: 3611799 (1971-10-01), Davis
patent: 3780575 (1973-12-01), Urbanosky
patent: 3850240 (1974-11-01), Conover
patent: 3864970 (1975-02-01), Bell
patent: 3876003 (1975-04-01), Kisling, III
patent: 3895520 (1975-07-01), Fertl
patent: 3969937 (1976-07-01), Barrington et al.
patent: 4031957 (1977-06-01), Sanford
patent: 4043407 (1977-08-01), Wilkins
patent: 4230180 (1980-10-01), Patton et al.
patent: 4246964 (1981-01-01), Brandell
patent: 4287946 (1981-09-01), Brieger
patent: 4313495 (1982-02-01), Brandell
patent: 4339948 (1982-07-01), Hallmark
patent: 4370886 (1983-02-01), Smith, Jr. et al.
patent: 4392376 (1983-07-01), Lagus et al.
patent: 4498536 (1985-02-01), Ross et al.
patent: 4535843 (1985-08-01), Jageler
patent: 4566535 (1986-01-01), Sanford
patent: 4573532 (1986-03-01), Blake
patent: 4580632 (1986-04-01), Reardon
patent: 4583595 (1986-04-01), Czernichow et al.
patent: 4635717 (1987-01-01), Jageler
patent: 4729430 (1988-03-01), White
patent: 4745802 (1988-05-01), Purfurst
patent: 4790378 (1988-12-01), Montgomery et al.
patent: 4838349 (1989-06-01), Berzin
patent: 4860580 (1989-08-01), DuRocher
patent: 4866607 (1989-09-01), Anderson et al.
patent: 4898236 (1990-02-01), Sask
patent: 4936139 (1990-06-01), Zimmerman et al.
patent: 4955438 (1990-09-01), Juergens et al.
patent: 4962815 (1990-10-01), Schultz et al.
patent: 5058674 (1991-10-01), Schultz et al.
patent: 5095745 (1992-03-01), Desbrandes
patent: 5105881 (1992-04-01), Thoms et al.
patent: 5184508 (1993-02-01), Desbrandes
patent: 5287741 (1994-02-01), Schultz et al.

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