公开(公告)号：US11572778B2

公开(公告)日：2023-02-07

申请号：US17868071

申请日：2022-07-19

Applicant: Landmark Graphics Corporation

Inventor： Xiaoqian Huang ,  Robello Samuel

IPC: G06F30/20 ,  E21B44/00 ,  E21B21/08 ,  E21B41/00

Abstract: The invention concerns a computer implemented method for underbalanced drilling. In one embodiment, the method includes determining a plurality of gas injection rate versus bottom hole pressure curves for a plurality of liquid injection rates for a specified minimum and maximum gas injection rate and a minimum and maximum liquid injection rate. Next, the method determines a set of four interception curves including a minimum motor equivalent liquid rate interception curve, a minimum vertical liquid velocity intercept curve, a minimum horizontal liquid velocity intercept curve, and a maximum motor equivalent liquid rate intercept curve for a specified minimum and maximum mud motor rate range and a minimum horizontal and vertical annulus velocity.

公开(公告)号：US10156133B2

公开(公告)日：2018-12-18

申请号：US14909966

申请日：2013-10-04

Applicant: Landmark Graphics Corporation

Inventor： Samuel Robello ,  Gabriela M. Morales-Ocando ,  Zexun Zhou ,  Xiaoqian Huang

IPC: E21B47/00 ,  E21B7/00 ,  G06F17/50 ,  E21B21/08 ,  E21B44/00 ,  E21B21/00

Abstract: The disclosed embodiments include a method, apparatus, and computer program product for monitoring underbalanced drilling operations. For example, one disclosed embodiment is a system that includes at least one processor and at least one memory coupled to the at least one processor and storing instructions that when executed by the at least one processor performs operations for generating a three dimensional tunnel view of an operating envelope of a well as the well is being drilled.

公开(公告)号：US10280730B2

公开(公告)日：2019-05-07

申请号：US15309161

申请日：2014-06-04

Applicant: LANDMARK GRAPHICS CORPORATION

Inventor： Robello Samuel ,  Xiaoqian Huang

IPC: E21B44/00 ,  E21B21/08 ,  E21B43/12 ,  E21B43/30 ,  E21B21/00

Abstract: One implementation of the disclosure provides a computer implemented method for underbalanced drilling. The implementation may include determining an initial 2D UBD operation envelope based on a set of initial operating points for a selected TVD or time, displaying the initial 2D UBD operation envelope on a computer display, providing at least one data point representing actual data from a well, determining at least one actual UBD operation point using the at least one data point and displaying it on the computer display along with the 2D UBD operation envelope, selecting an optimization parameter, determining a set of optimized operating points based on the optimization parameter, and displaying the set of optimized operating points on the computer display along with the 2D UBD operation envelope.

公开(公告)号：US20160201445A1

公开(公告)日：2016-07-14

申请号：US14909966

申请日：2013-10-04

Applicant: LANDMARK GRAPHICS CORPORATION

Inventor： Samuel Robello ,  Gabriela M. Morales-Ocando ,  Zexun Zhou ,  Xiaoqian Huang

IPC: E21B47/00 ,  G06F17/50 ,  E21B7/00

CPC classification number: E21B47/00 ,  E21B7/00 ,  E21B21/08 ,  E21B44/00 ,  E21B2021/006 ,  G06F17/5009

Abstract: The disclosed embodiments include a method, apparatus, and computer program product for monitoring underbalanced drilling operations. For example, one disclosed embodiment is a system that includes at least one processor and at least one memory coupled to the at least one processor and storing instructions that when executed by the at least one processor performs operations for generating a three dimensional tunnel view of an operating envelope of a well as the well is being drilled.

Abstract translation: 所公开的实施例包括用于监测欠平衡钻井操作的方法，装置和计算机程序产品。 例如，一个公开的实施例是包括至少一个处理器和至少一个存储器的系统，该至少一个存储器耦合到至少一个处理器，并且存储当至少一个处理器执行的操作执行用于生成 井的操作范围正在钻井。

公开(公告)号：US11428076B2

公开(公告)日：2022-08-30

申请号：US15035479

申请日：2013-11-27

Applicant: LANDMARK GRAPHICS CORPORATION

Inventor： Xiaoqian Huang ,  Robello Samuel

IPC: G06F30/20 ,  E21B41/00 ,  E21B21/08

Abstract: The invention concerns a computer implemented method for underbalanced drilling. In one embodiment, the method includes determining a plurality of gas injection rate versus bottom hole pressure curves for a plurality of liquid injection rates for a specified minimum and maximum gas injection rate and a minimum and maximum liquid injection rate. Next, the method determines a set of four interception curves including a minimum motor equivalent liquid rate interception curve, a minimum vertical liquid velocity intercept curve, a minimum horizontal liquid velocity intercept curve, and a maximum motor equivalent liquid rate intercept curve for a specified minimum and maximum mud motor rate range and a minimum horizontal and vertical annulus velocity.

公开(公告)号：US20220356786A1

公开(公告)日：2022-11-10

申请号：US17868071

申请日：2022-07-19

Applicant: Landmark Graphics Corporation

Inventor： Xiaoqian Huang ,  Robello Samuel

IPC: E21B41/00 ,  G06F30/20 ,  E21B21/08

Abstract: The invention concerns a computer implemented method for underbalanced drilling. In one embodiment, the method includes determining a plurality of gas injection rate versus bottom hole pressure curves for a plurality of liquid injection rates for a specified minimum and maximum gas injection rate and a minimum and maximum liquid injection rate. Next, the method determines a set of four interception curves including a minimum motor equivalent liquid rate interception curve, a minimum vertical liquid velocity intercept curve, a minimum horizontal liquid velocity intercept curve, and a maximum motor equivalent liquid rate intercept curve for a specified minimum and maximum mud motor rate range and a minimum horizontal and vertical annulus velocity.

公开(公告)号：US10558765B2

公开(公告)日：2020-02-11

申请号：US15035482

申请日：2013-11-27

Applicant: LANDMARK GRAPHICS CORPORATION

Inventor： Robello Samuel ,  Xiaoqian Huang

IPC: G06G7/48 ,  G06F17/50 ,  E21B41/00 ,  E21B21/00

Abstract: In one embodiment, the invention provides a computer implemented method for determining underbalanced drilling conditions. The method may include determining the number of tool joints in a segment of drill string, where each tool joint has a length and an inner diameter and an outer diameter, determining the total length of all tool joints in a segment of drill string, determining the total length of the segment of drill string excluding the tool length of all tool joints in the segment of drill string, wherein the drill string has an inner diameter and an outer diameter, determining the inner diameter of a segment of wellbore encompassing a segment of drill string, and determining a pressure drop in the segment of wellbore, based on the total length of all tool joints in the segment of drill string.

公开(公告)号：US20160292322A1

公开(公告)日：2016-10-06

申请号：US15035482

申请日：2013-11-27

Applicant: LANDMARK GRAPHICS CORPORATION

Inventor： Robello Samuel ,  Xiaoqian Huang

IPC: G06F17/50 ,  E21B41/00

Abstract: In one embodiment, the invention provides a computer implemented method for determining underbalanced drilling conditions. The method may include determining the number of tool joints in a segment of drill string, where each tool joint has a length and an inner diameter and an outer diameter, determining the total length of all tool joints in a segment of drill string, determining the total length of the segment of drill string excluding the tool length of all tool joints in the segment of drill string, wherein the drill string has an inner diameter and an outer diameter, determining the inner diameter of a segment of wellbore encompassing a segment of drill string, and determining a pressure drop in the segment of wellbore, based on the total length of all tool joints in the segment of drill string.

Abstract translation: 在一个实施例中，本发明提供了一种用于确定欠平衡钻井条件的计算机实现的方法。 该方法可以包括确定钻柱段中的工具接头的数量，其中每个工具接头具有长度和内径和外径，确定钻柱段中所有工具接头的总长度，确定 钻杆段的总长度不包括钻柱段中所有工具接头的刀具长度，其中钻柱具有内径和外径，确定包含一段钻孔的井筒段的内径 并且基于钻柱段中的所有工具接头的总长度来确定井筒段中的压降。