Laserfiche WebLink
1,832.2 feet GL. While tripping out the pipe, it was discovered the pipe was plugged with the <br /> gravel. The tool joints of the pipe did not have uniform ID's (ranging from 0.75 to 1.0 inches) <br /> and caused bridge points for the gravel to hang up on and plug the pipe. Himes spent the <br /> remainder of the shift unplugging the gravel from the pipe. At the request of NS all personnel <br /> were released for July 3rd and 4th. <br /> On July 5, 2016 Himes returned to location and finished removing the gravel restrictions within <br /> the remainder of the 2.375 inch pipe. It appeared all or most of the gravel poured on July 2nd <br /> washed out of the pipe. The decision was made to pour 10 buckets gravel from surface to <br /> 1,860 feet GL, sand back to 1,830 feet GL, and then pump cement plug. Ten buckets of gravel <br /> was poured in from surface. Himes tripped in open ended and tagged gravel at 1,760 feet GL. <br /> The decision was made to wash out gravel to 1,830 feet GL and then cement. Himes changed <br /> over to the Kelly and attempted to unload the hole, the booster failed while pressuring up. <br /> After getting the booster back on line, the hole would not unload at 800 psi. The booster <br /> failure may have caused back pressure and sucked material into the mule shoe and pipe. Himes <br /> tripped out (water in the drill pipe indicated a plug) to 1,280 feet GL and unloaded the hole <br /> successfully. The pipe was then tripped back in to wash gravel and hit a bridge at 1,320 feet GL. <br /> Himes pulled up and tagged at 1,315 feet GL when attempting to wash through the bridge. The <br /> pipe was tripped out of the hole and found to have transducer cable and gravel in the mule <br /> shoe indicating that fishing tools would be necessary to remove any remaining materials lost <br /> downhole. KLX was contacted to provide fishing tools again. <br /> Fishing operations continued on July 6, 2016 when KLX arrived on location with spear and coil <br /> spear. Himes ran in the hole with the traditional spear, tagged fish at 1,312 feet GL, and <br /> retrieved approximately 30 feet of transducer cable. Himes then ran in the hole with the coil <br /> spear without the stop ring. The coil spear BHA encountered resistance at 1,105 feet GL but <br /> was worked through and tagged the fish at 1,315 feet GL. Himes changed over to the Kelly and <br /> washed through the fish with the coil spear. Pieces of transducer cable were brought to surface <br /> out of the blooie line. Himes began tripping out of the hole when the coil spear BHA became <br /> stuck at 1,105 feet GL, the string could be lowered but not raised, and the position on the joint <br /> prevented the driller from being able to change back to the Kelly and rotate the string. The <br /> driller attempted pulling twice the string weight and rotating the pipe with wrenches without <br /> success. The pipe could potentially be rotated using the rig's drill out slips, but the drill out slips <br /> currently on the rig would not work on the 2.375 inch pipe. The decision was made to gather <br /> all physical specifications for the pipe and obtain suitable drill out slips. Himes and D&A went <br /> to Rifle, CO and reviewed the video log conducted in August of 2015, a dog leg was noted at a <br /> depth of 1,105 to 1,109 feet GL. The produced fluid was found to have a high concentration of <br /> TDS, so D&P was contacted to transport water from the pit to the NS waste pond. <br /> Efforts to free the stuck pipe continued the following day. Himes poured four gallons of <br /> vegetable oil down the pipe and pumped it past the fish. They then worked the pipe by pulling <br /> and rotating with the drill out slips. The pipe came free at 09:45 hours on July 7. The coil spear <br /> had retrieved approximately 30 feet of transducer cable, a sample bailer, and gravel. The <br /> sample bailer was not documented by NS as being a known fish in the hole and D&A had no <br /> knowledge of this. The coil spear showed heavy tool marks from being stuck in the dogleg, and <br /> was measured with a caliper at 3.5 inch OD and not the reported 3.625 inch OD by KLX. This <br /> Daub&Associates, Inc. Page 3 of 5 July 2016 <br />