公开(公告)号：US20240410271A1

公开(公告)日：2024-12-12

申请号：US18680148

申请日：2024-05-31

Applicant: XECTA INTELLIGENT PRODUCTION SERVICES

Inventor： Sathish Sankaran ,  Utkarsh Sinha ,  Prithvi Singh Chauhan ,  Hardikkumar Zalavadia

IPC: E21B47/06 ,  E21B43/00 ,  E21B47/10

Abstract: A method of detecting one or more well interference events at a well penetrating a reservoir in a subterranean formation is provided. The method includes: receiving wellhead pressure and flowrates of oil, gas, and water for the well during production; calculating a bottom hole pressure (BHP) of the well based on the wellhead pressure and flowrate of oil, gas, and water; calculating an average reservoir pressure based at least on the BHP; determining a productivity index (PI) for the well for a plurality of time steps based at least on the average reservoir pressure; determining a dataset of PI values and corresponding cumulative fluid production values from the well; analyzing the dataset to determine one or more breakpoints in a relationship between PI and cumulative fluid production representing one or more well interference events; and producing fluids from the reservoir based at least on the one or more breakpoints.

公开(公告)号：US20240344447A1

公开(公告)日：2024-10-17

申请号：US18631756

申请日：2024-04-10

Applicant: XECTA INTELLIGENT PRODUCTION SERVICES

Inventor： Sathish Sankaran ,  Hardikkumar Zalavadia ,  Utkarsh Sinha

IPC: E21B47/06

CPC classification number: E21B47/06 ,  E21B2200/20

Abstract: A method of forecasting production using an artificial lift operation in a well penetrating a reservoir in a subterranean formation, comprising: receiving sensor feedback from the well during well production; receiving a flowrate of oil, gas, and water for the well; calculating average reservoir pressure and productivity index (PI) of the well based on a cumulative liquid rate; estimating reservoir deliverability based on the PI and average reservoir pressure; estimating well deliverability, based on one or more artificial lift parameters; estimating a bottomhole pressure (BHP) of the well based, at least in part, on the estimated reservoir deliverability and well deliverability; generating a multiphase forecast of an estimated liquid, gas, water, and oil production of the well, based, at least in part, on the estimated BHP and the sensor feedback; and producing fluids from the well based on the estimated liquid, gas, water, and oil production of the well.

公开(公告)号：US20240386169A1

公开(公告)日：2024-11-21

申请号：US18663520

申请日：2024-05-14

Applicant: XECTA INTELLIGENT PRODUCTION SERVICES

Inventor： Sathish Sankaran ,  Hardikkumar Zalavadia ,  Utkarsh Sinha ,  Prithvi Singh Chauhan

IPC: G06F30/28

Abstract: A method of forecasting production of a well penetrating a reservoir in a subterranean formation, including: receiving a plurality of bottomhole pressures for the well; receiving a plurality of flowrates for the well; determining rate normalized pressure (RNP) data for the well over a period of time based on the plurality of bottomhole pressure and the plurality of flowrates; performing a sparse identification of nonlinear dynamics (SINDy) analysis on the RNP data to identify a relationship between flowrate and bottomhole pressure for the well, wherein the SINDy analysis is based on a plurality of physics features; providing a forecast of future production for the well based on the identified relationship between flowrate and bottomhole pressure for the well; and producing fluids from the reservoir based, at least in part, on the forecast of future production.

公开(公告)号：US11767750B1

公开(公告)日：2023-09-26

申请号：US18076921

申请日：2022-12-07

Applicant: XECTA INTELLIGENT PRODUCTION SERVICES

Inventor： Sathish Sankaran ,  Hardikkumar Zalavadia ,  Utkarsh Sinha

IPC: E21B47/008 ,  G01V99/00 ,  E21B47/07

CPC classification number: E21B47/008 ,  E21B47/07 ,  G01V99/005 ,  E21B2200/20

Abstract: An apparatus for estimating a gas-oil ratio for a well in an unconventional reservoir comprises a processor associated with a control system. The processor is configured to determine a bottomhole pressure for the well. The processor is further configured to determine one or more pressure, volume, and temperature (PVT) properties associated with fluid flow and to determine transient well performance. The processor is further configured to determine a Productivity Index (PI) for the well for a plurality of time steps and to determine an inflection point. The processor is further configured to estimate the gas-oil ratio of the well after the inflection point based on the determined transient well performance and to perform the fluid production rate forecast based on the determined PI. The processor is further configured to apply the fluid production rate forecast to the estimated gas-oil ratio to determine an instantaneous gas-oil ratio.