公开(公告)号：US20230078999A1

公开(公告)日：2023-03-16

申请号：US17821287

申请日：2022-08-22

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Jason BURKE ,  John G. ELLER ,  Matthew L. WHITE

IPC: E21B34/14

Abstract: Gravity driven reverse circulator tools are provided and methods of using same. One tool has nested pipes that when fully nested close a hole in one of the pipes, but when the drillstring is lifted, the pipes partially separate under the force of gravity to expose the hole. The other embodiment is similar, but the hole is hook shaped (hook on top as in a walking cane) and a protrusion from the other pipe fits in the hole. Thus, both lifting and rotation are needed open the tool.

公开(公告)号：US20220364429A1

公开(公告)日：2022-11-17

申请号：US17735043

申请日：2022-05-02

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Jason BURKE ,  Matthew L. WHITE ,  John G. ELLER

IPC: E21B33/12

Abstract: Methods of plugging a hydrocarbon well by using degradable plugs are provided. When the plug is no longer needed, a degradation fluid or fluids are pumped downhole under high pressure, typically via jet, such that the degradation fluid provides an erosive force to the degradable plug, thus both speeding its degradation and preventing or minimizing the leaving of solid plug material remnants in the well.

公开(公告)号：US20180051533A1

公开(公告)日：2018-02-22

申请号：US15680986

申请日：2017-08-18

Applicant: ConocoPhillips Company

Inventor： Zachary L. ZBRANEK ,  Charles COLPITT ,  James G. NANNEY ,  Matthew L. WHITE

IPC: E21B33/134

CPC classification number: E21B33/134 ,  E21B17/14 ,  E21B33/16

Abstract: By incorporating a dissolvable or degradable material into the wiper dart and/or float equipment, a fluid can be pumped during the cement phase (or spotted by other means) to begin degradation of the dissolvable material. Once the material is dissolved, a flow path is exposed, allowing communication to the backside or formation of the wellbore through the plug set and shoe track.