Well surging method and system
Patent
·
OSTI ID:7148549
The patent describes a method of surging a well, the method comprising the steps of: (a) providing a tool string including upper and lower spaced ball valves and a packer; (b) initially orienting the tool string so that the ball valves are closed to define a surge chamber therebetween, and so that the packer is in a retracted position; (c) placing the tool string as initially oriented in step (b) in a well so that the packer is located at an elevation above a zone of the well which is to be surged; (d) setting the packer to seal a well annulus between the tool string and the well at the elevation above the zone; (e) after step (d), opening the lower ball valve; and thereby (f) surging fluid from the zone of the well up through the tool string past the opened lower ball valve into the surge chamber. A well surging apparatus is described which consist of: an elongated housing assembly having a central flow bore disposed therethrough; upper and lower independently operable ball valves disposed in the housing assembly; and packer means, connected to the housing assembly for selectively sealing a well annulus between the housing assembly and a well bore so that a well zone below the packer means may be surged.
- Assignee:
- Halliburton Co., Duncan, OK
- Patent Number(s):
- US 4619325
- OSTI ID:
- 7148549
- Country of Publication:
- United States
- Language:
- English
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