OMNI circulating valve is a full opening, annulus pressure operated re-closable circulating valve which can be open and closed many times. The tool is operated by repeatedly cycling the annulus pressure up to a predetermined value and then releasing this pressure..
Features
*Full-opening formation testing in cased hole, oil tube tradition perforation, tube string testing and cycle operation in the conjunction of perforation and full-opening formation testing
* Make the test program simple and reduce the reconnoitering cost greatly