公开(公告)号：US20240271028A1

公开(公告)日：2024-08-15

申请号：US18567675

申请日：2022-04-05

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Robert M. SHIRLEY ,  P. Matthew SPIECKER ,  Lee J. HALL

IPC: C09K8/528 ,  C09K8/74 ,  E21B43/267 ,  E21B43/27

CPC classification number: C09K8/528 ,  C09K8/74 ,  E21B43/267 ,  E21B43/27

Abstract: Methods for utilizing an acid blend to prevent and/or remove blockages encountered during the hydraulic fracturing of a near-wellbore region of a subterranean formation are provided herein. The methods include using an acid blend to dissolve formation mineralogies within close proximity to perforations and corresponding fractures that have experienced or are likely to experience blockages, such as blockages caused by the embedment of proppant into the perforation tunnels and/or the fractures. The acid blend used according to the methods described herein includes an acid mixture including hydrochloric acid and hydrofluoric acid. In addition, the acid blend may also include a chelating agent.

公开(公告)号：US20240228867A1

公开(公告)日：2024-07-11

申请号：US18558784

申请日：2022-02-23

Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY

Inventor： Dragan STOJKOVIC ,  Robert M. SHIRLEY ,  Lee J. HALL ,  Kendal DECKER

IPC: C09K8/80 ,  E21B43/11 ,  E21B43/267

CPC classification number: C09K8/805 ,  E21B43/267 ,  E21B43/11

Abstract: A proppant including polyolefin-coke composite granules, a hydrocarbon well including such a proppant, and methods of forming the hydrocarbon well using such a proppant are provided herein. The hydrocarbon well includes a wellbore that extends within a subsurface region and a downhole tubular that extends within the wellbore and defines a tubular conduit. The hydrocarbon well also includes a number of perforations formed within the downhole tubular and a number of fractures formed within the subsurface region proximate to the perforations. The hydrocarbon well furthers include the proppant positioned within at least a portion of the fractures. The proppant includes a number of polyolefin-coke composite granules, where a characteristic dimension of each polyolefin-coke composite granule is at least 50 micrometers (μm) and at most 3 millimeters (mm), and where each polyolefin-coke composite granule includes a number of polyolefin polymer chains and at least one petroleum coke granule.

公开(公告)号：US20240084191A1

公开(公告)日：2024-03-14

申请号：US18451259

申请日：2023-08-17

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Timothy J. NEDWED ,  Dragan STOJKOVIC ,  Lee J. HALL ,  P. Matthew SPIECKER

IPC: C09K8/66 ,  C09K8/68 ,  C09K8/80 ,  E21B43/267

CPC classification number: C09K8/665 ,  C09K8/66 ,  C09K8/68 ,  C09K8/80 ,  E21B43/267

Abstract: A slurry including a density-tunable aqueous heavy fracturing fluid and a method for completing a hydrocarbon well using such a slurry are provided herein. The slurry includes proppant particulates and the density-tunable aqueous heavy fracturing fluid, where the density-tunable aqueous heavy fracturing fluid includes a bromide-based compound. The density of the density-tunable aqueous heavy fracturing fluid is between 1 gram/cubic centimeter (g/cc) and 3.6 g/cc.