公开(公告)号：US20230313658A1

公开(公告)日：2023-10-05

申请号：US18174104

申请日：2023-02-24

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Vibhas PANDEY

IPC: E21B43/267 ,  E21B43/16 ,  G01V99/00

CPC classification number: E21B43/267 ,  E21B43/16 ,  G01V99/005 ,  E21B2200/20

Abstract: A method of fracturing a reservoir wherein the main fracture stimulation treatment is preceded by depositing non dissolving solids into fracture tips where excessive downward or upward fracture growth is not desired, thereby controlling fracture geometry. The method thereby increases production of a fluid, such as water, oil or gas, from said reservoir, and avoids fracture propagation out of the pay-zone into undesirable zones.

公开(公告)号：US20200095492A1

公开(公告)日：2020-03-26

申请号：US16559698

申请日：2019-09-04

Applicant: ConocoPhillips Company

Inventor： Vibhas PANDEY

IPC: C09K8/508 ,  C09K8/68 ,  C09K8/76 ,  E21B43/26 ,  E21B33/138

Abstract: Reducing leak-off during acid stimulation with dissolvable material sized to preferentially block crevices and wormholes, thus allowing the acid to travel further down the fractures, etching deeper into the reservoir than a similar process not using such dissolvable materials. After stimulation, the materials dissolve and production can proceed and will be improved over what is possible without such dissolvable materials.

公开(公告)号：US20240426202A1

公开(公告)日：2024-12-26

申请号：US18732724

申请日：2024-06-04

Applicant: ConocoPhillips Company

Inventor： Vibhas PANDEY

IPC: E21B43/267 ,  E21B47/06

Abstract: Proppant flowback during post-stimulation well clean up and production is a common occurrence in most hydraulically fractured wells. The production of the proppant from a propped fracture is related to the forces acting on the proppant pack during the well that is actively producing fluids. Flow rate and pressure data collected during the post-treatment flowback activity is used in simulating bottomhole (BH) production rates using a Gaussian solution scheme. The BH rate is distributed amongst the various perforation clusters while incorporating the effects of key hydraulic fracture characteristics in the presence of simulated effective bottomhole flowing pressures across different fluid entry points into the wellbore. The solution is updated at each time step during the simulation. The production allocation is then used in calculating effective flow velocities that are then compared with critical velocities to predict proppant flowback. Steps to mitigate or reduce the flowback are implemented.

公开(公告)号：US20190128111A1

公开(公告)日：2019-05-02

申请号：US16018947

申请日：2018-06-26

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Vibhas PANDEY ,  Robert C. BURTON, JR. ,  Alexandre RIEL

IPC: E21B47/06 ,  G01V99/00 ,  G06F17/27

Abstract: Hydraulic fracturing of subterranean formations has become more complex and detailed as information increases. Methods for calculating and monitoring reservoir pressures during treatment provide unique opportunities to adjust treatments on the fly. Treatments include acid fracturing, fracture acidizing, acid stimulation, propped acid fracture stimulation, hydraulic fracturing, slick water based hydraulic fracturing, foamed based hydraulic fracturing, foam based acid fracturing, foamed based acid diversion, any other physical particulate and fiber based hydraulic fracturing or matrix treatment.