Patent ID: 6901998

Claim:
A method for drilling a well and for well intervention comprising the steps of: a. using a multipurpose system on a pivoting, slidable cantilever on a platform to drill a well and to perform well intervention operations, wherein the pivoting, slidable cantilever is adapted to pivot and slide along an x-y axis, and wherein the multipurpose system comprises: i. a tower comprising: 1. a mast; 2. a hoist winch; 3. a splittable block connected to the mast; 4. a trolley comprising a holding member, wherein the holding member is secured to the mast and the splittable block; 5. a hoist cable having a first end and a second end, wherein the first end is connected to the hoist winch and the hoist cable passes over the mast through the splittable block to the trolley; ii. a storage area having a storage device for storing tubulars; iii. a racking arm secured on a bottom side to the pivoting, slidable cantilever with a beam to the tower for moving tubulars; iv. a reel comprising coiled tubulars; v. a moveable injector head for running and retrieving coiled tubulars from reel; and vi. a retractable trolley moveably mounted on the mast for positioning the tubulars over the well and over an additional work area; b. pulling a completion tubing out of the well; c. forming segments from the completion tubing pulled from the well; d. setting back the segments into the storage area on the cantilever; e. running the coiled tubulars into the well; f. removing used completion equipment in the well; g. preparing the well for new completion equipment with the coiled tubulars; h. while preparing the well for the new completion equipment, pulling segments of new completion tubing from the storage area and breaking segments of new completion tubing into individual joints and removing the individual joints from the pivoting, slidable cantilever; i. running into the well with coiled tubulars and installing the new completion equipment; j. while installing the new completion equipment in the well, building the segments of new completion tubing from individual joints and setting the segments of new completion tubing in the storage area; and k. running the segments of new completion tubing and the new completion equipment into the well.