公开(公告)号：US10550679B2

公开(公告)日：2020-02-04

申请号：US15948460

申请日：2018-04-09

Applicant: ConocoPhillips Company

Inventor： Robert S Redman ,  Siluni L. Gamage ,  T. J. Wheeler

IPC: E21B43/24 ,  E21B43/16 ,  E21B47/06

Abstract: A proposed methodology to startup wells with electrical downhole heating as a preconditioning method for a steam injection process. The downhole electrical heating recovers oil which results in a reduction in the reservoir pressure. Once oil has been recovered for a period of time and the operating pressure and temperature has been reduced, SAGD well pairs are provided between the downhole heater wells, and SAGD or a SAGD-like method used to produce oil. The method reduces heat losses due to steam injection at lower pressure and temperature and therefore, improves efficiency and lowers operating costs. Operating at lower pressure and temperature will also reduce the risk of melting the permafrost and consequent well failure issues. When oil production drops below an economical level, remaining oil can be collected at the DHH wells using the SAGD wellpair for gas or solvent or steam sweeps, or combinations thereof.

公开(公告)号：US10526881B2

公开(公告)日：2020-01-07

申请号：US14955894

申请日：2015-12-01

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Bo Chen ,  Qing Chen

IPC: E21B43/24

Abstract: Producing hydrocarbons by steam assisted gravity drainage, more particularly, utilizing conventional horizontal wellpair configuration of SAGD in conjunction of infill production well, to coinject oil-based solvents with steam initially and then switch to NCG-steam coinjection after establishing thermal communication between the thermal chamber and infill well.

公开(公告)号：US10526872B2

公开(公告)日：2020-01-07

申请号：US15260991

申请日：2016-09-09

Applicant: The ConocoPhillips Company

Inventor： Guy Vachon

IPC: G06F17/50 ,  E21B41/00 ,  E21B43/08 ,  E21B47/06 ,  E21B49/00 ,  E21B49/08 ,  E21B43/24

Abstract: A method of optimization ICD design that includes consideration of reservoir characteristics, well configuration and type of enhanced oil recovery technique, as well as needed performance characteristics. Thus, the ICD is optimized for particular wells, reservoirs and/or enhanced oil recovery uses.

公开(公告)号：US10526866B2

公开(公告)日：2020-01-07

申请号：US15351185

申请日：2016-11-14

Applicant: ConocoPhillips Company

Inventor： Thomas Eugene Ferg

IPC: E21B33/13 ,  E21B29/00 ,  E21B33/134 ,  E21B43/10 ,  E21B43/114 ,  E21B47/00

Abstract: The present invention discloses a method of plugging a well that relies on casing expansion to plug uncemented casing sections, rather than milling out the casing or perforate wash and cement (PWC).

公开(公告)号：US10508048B2

公开(公告)日：2019-12-17

申请号：US15093324

申请日：2016-04-07

Applicant: William G. McLelland ,  Sally Ann Thomas

Inventor： William G. McLelland ,  Sally Ann Thomas

IPC: E21B43/34 ,  C02F1/40 ,  B01D17/02 ,  C02F1/52 ,  C02F101/30 ,  C02F101/32 ,  C02F103/10 ,  C02F1/20 ,  C02F1/42 ,  C02F1/44 ,  C02F1/469 ,  C02F101/10 ,  C02F103/36

Abstract: Methods and systems for processing production fluid include embodiments for removal of injected chemicals from the production fluid. An embodiment of a method includes receiving production fluid from a borehole in an earth formation, the production fluid including surfactants injected into the earth formation to stimulate production of hydrocarbons therefrom. The method also includes processing the production fluid to separate the production fluid into at least an oil phase and produced water, introducing a treatment fluid from a treatment fluid source into at least one of the production fluid and the produced water, and removing the surfactants from at least the produced water. The treatment fluid includes a concentration of multivalent cations, the multivalent cations configured to reduce water solubility of the surfactants.

公开(公告)号：US10465501B2

公开(公告)日：2019-11-05

申请号：US15453044

申请日：2017-03-08

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Kyle Friehauf ,  Mark R. Gibson

IPC: E21B47/10 ,  G01K11/32 ,  E21B47/12 ,  E21B47/022 ,  G01H9/00 ,  G01V1/22 ,  G01V1/40

Abstract: This disclosure describes a method of calculating fluid distribution from a hydraulically fractured well, especially during a plug-and-perf hydraulic fracturing operation. The Distributed Acoustic Sensing (DAS) data is used to quantify the fluid distribution in separate perf clusters during fracturing, and the result can be used for completion design and optimization, hydraulic fracturing, and ultimately for oil and gas production.

公开(公告)号：US10408054B2

公开(公告)日：2019-09-10

申请号：US15247418

申请日：2016-08-25

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Pijush K. Paul

IPC: E21B49/00 ,  E21B43/26 ,  E21B47/02 ,  E21B49/02 ,  E21B49/08

Abstract: Unconventional reservoirs need hydraulic stimulation in all the wells to enhance permeability for an economic production, which accounts for a large part of the well expenditure. However, lack of accurate stress information leads to incorrect selection of producing intervals, which transforms to under-performance in production. An analytical solution is optimized to determine the principal horizontal stresses by integrating the concept of uniaxial elasticity and frictional equilibrium. The software tool allows estimation of the continuous solutions of stresses based on the frictional strength concept. A more realistic considerations of rock rheology in stress estimation and better estimate principal horizontal stress magnitude in the earth crust help in planning and executing hydraulic stimulation operation. The stress estimate also aids in planning important parameters to drill and complete the wells successfully.

公开(公告)号：US10407612B2

公开(公告)日：2019-09-10

申请号：US15481426

申请日：2017-04-06

Applicant: ConocoPhillips Company ,  University of Kansas

Inventor： Huili Guan ,  Cory Berkland ,  Ahmad Moradi-Araghi ,  Jenn-Tai Liang ,  Terry M. Christian ,  Riley B. Needham ,  James H. Hedges ,  Min Cheng ,  Faye L. Scully

IPC: C09K8/588 ,  C09K8/594 ,  E21B43/16 ,  C08F220/56 ,  C08L33/26 ,  E21B33/138

Abstract: The invention is directed to polymers that self-crosslink at acidic pH or can be crosslinked by phenolic agents in brine. Such polymers have lower viscosity and can be pumped deep into reservoirs, where they will cross link in situ, thus increasing their viscosity and/or form a gel and blocking thief zones. Methods of making and using such polymers are also provided.

公开(公告)号：US10399002B2

公开(公告)日：2019-09-03

申请号：US15727753

申请日：2017-10-09

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Jeffrey A. Hall

IPC: B01D1/20 ,  B01D1/06 ,  C10G7/00 ,  B01D3/00

Abstract: A method for separating lighter components of a hydrocarbon product in a container tank includes introducing the hydrocarbon product into the container tank via an inlet located near or at the bottom of the container tank; routing the hydrocarbon product through a pipe-in-pipe conduit that is at least partially surrounded by a bulk fluid stored in the container tank; providing a vapor-liquid interface that allows efficient evaporation of the lighter components resulting in separation of the lighter components and a processed hydrocarbon product; and routing the processed hydrocarbon product into the annular space of the pipe-in-pipe conduit thereby thermally insulating incoming hydrocarbon product from the surrounding bulk fluid and eliminating or minimizing vapor liquid equilibrium shift of the incoming hydrocarbon product caused by increased head pressure and/or reduction in temperature of the incoming hydrocarbon product.

公开(公告)号：US10385666B2

公开(公告)日：2019-08-20

申请号：US14595614

申请日：2015-01-13

Applicant: CONOCOPHILLIPS COMPANY

Inventor： John A. Stanecki ,  Thomas J. Wheeler

IPC: E21B43/24 ,  E21B43/30

Abstract: The present disclosure relates to a particularly effective well configuration that can be used for steam-drive based oil recovery methods. Fishbone multilateral wells are combined with steam drive, effectively allowing drive processes to be used where previously the reservoir lacked sufficient injectivity to allow steam drive or cyclic steam based methods.