公开(公告)号：WO2008033737A2

公开(公告)日：2008-03-20

申请号：PCT/US2007/077957

申请日：2007-09-10

Applicant: KJT ENTERPRISES, INC.

Inventor： STRACK, Kurt, M.

IPC: G01V3/00

CPC classification number: G01V3/12 ,  G01V3/083

Abstract: A method for interpreting transient electromagnetic survey data includes imparting an electromagnetic field in the Earth's subsurface by passing electric current through a transmitter antenna. The electric current includes switched direct current at a selected switching frequency. Voltages induced in a receiver corresponding to electromagnetic effects induced in the Earth's subsurface are detected. Frequency domain electromagnetic response of the Earth's subsurface is determined from the detected voltages and transient electromagnetic response of the Earth's subsurface is determined from the detected voltages.

Abstract translation: 用于解释瞬态电磁勘测数据的方法包括通过使电流通过发射机天线来在地球的地下赋予电磁场。 电流包括所选开关频率的开关直流电流。 检测到在接收器中诱发的电压对应于地球表面诱发的电磁效应。 从检测到的电压确定地球表面的频域电磁响应，并根据检测到的电压确定地球表面的瞬态电磁响应。

公开(公告)号：WO2006020214A2

公开(公告)日：2006-02-23

申请号：PCT/US2005/025414

申请日：2005-07-19

Applicant: KJT ENTERPRISES, INC.

Inventor： STRACK, Kurt, M. ,  RUETER, Horst

IPC: G01V3/02

CPC classification number: G01V3/24

Abstract: A method is disclosed for determining spatial distribution of resistivity of Earth formations surrounding a wellbore having a conductive pipe therein. The method includes measuring resistivity of the Earth formations using measurements of current leakage along the pipe at selected axial positions. Electromagnetic properties of the Earth formations are measured from within the pipe. The measurements of electromagnetic properties correspond to a larger axial distance and to a greater lateral distance than the measurements of resistivity from current leakage. The current leakage and electromagnetic measurements are jointly inverted to obtain a model of the spatial distribution.

Abstract translation: 公开了一种用于确定围绕其中具有导电管的井筒的地层的电阻率的空间分布的方法。 该方法包括使用在选定的轴向位置处沿管道的电流泄漏测量来测量地层的电阻率。 地层的电磁特性是从管内测量出来的。 电磁特性的测量对应于比电流泄漏的电阻率的测量更大的轴向距离和更大的横向距离。 电流泄漏和电磁测量共同反转，以获得空间分布的模型。

公开(公告)号：WO2007127593A2

公开(公告)日：2007-11-08

申请号：PCT/US2007/066202

申请日：2007-04-08

Applicant: KJT ENTERPRISES, INC.

Inventor： STRACK, Kurt, M. ,  THOMSEN, Leon, A. ,  REUTER, Horst

IPC: G06F19/00 ,  G06F17/00 ,  G06Q30/00 ,  G06Q50/00

CPC classification number: G01V11/00 ,  G01V2210/6163

Abstract: A method for determining spatial distribution of properties of the Earth's subsurface includes obtaining seismic data over a survey area of the Earth's subsurface. Controlled source electromagnetic survey data are obtained over substantially the same survey area. An initial model of the Earth's subsurface for each of the seismic data and the electromagnetic data is generated. Further data may include gravity, magnetics, seismics any type and borehole data. Each model is optimized on at least one model parameter. Consistency is determined between the models; and the at least one model parameter is adjusted and the optimizing and determining consistency are repeated until the models are consistent. Constraints are successively derived from the data sets and also cross checked against reservoir data where available.

Abstract translation: 一种确定地球地下性质的空间分布的方法包括在地球地下测量区域获取地震数据。 控制源电磁勘探数据是在大致相同的勘测区域获得的。 生成每个地震数据和电磁数据的地球地下初始模型。 进一步的数据可能包括重力，磁力，地震学任何类型和钻孔数据。 每个模型都对至少一个模型参数进行优化。 模型之间确定一致性; 并调整至少一个模型参数，并重复优化和确定一致性，直到模型一致。 约束从数据集中连续派生，并且与可用的储层数据进行交叉检查。

公开(公告)号：WO2007089486A2

公开(公告)日：2007-08-09

申请号：PCT/US2007/001833

申请日：2007-01-24

Applicant: KJT ENTERPRISES, INC. ,  STRACK, Kurt, M. ,  RUETER, Horst ,  THOMSEN, Leon, A.

Inventor： STRACK, Kurt, M. ,  RUETER, Horst ,  THOMSEN, Leon, A.

IPC: G06F19/00

CPC classification number: G01V3/12 ,  G01V3/083

Abstract: A method for controlled source electromagnetic Earth surveying includes deploying a plurality of electromagnetic sensors in a selected pattern at the top of an area of the Earth's subsurface to be surveyed. At least one of a transient electric field and a transient magnetic field is applied to the Earth in the vicinity of the sensors at a plurality of different positions. At least one of electric field amplitude and magnetic field amplitude at each of the sensors is recorded each time the transient electric field and/or magnetic field is applied. Each recording is adjusted for acquisition geometry. An image is generated corresponding to at least one sensor position using at least two stacked, adjusted recordings.

Abstract translation: 用于受控源电磁地球测量的方法包括在被测量的地球地下区域的顶部以选定的模式部署多个电磁传感器。 在多个不同位置处，在传感器附近的地球上施加瞬态电场和瞬态磁场中的至少一个。 每当施加瞬态电场和/或磁场时，记录每个传感器的电场振幅和磁场振幅中的至少一个。 每个记录被调整为采集几何。 使用至少两个堆叠的调整的记录对应于至少一个传感器位置生成图像。

公开(公告)号：WO2008005710A2

公开(公告)日：2008-01-10

申请号：PCT/US2007/071889

申请日：2007-06-22

Applicant: KJT ENTERPRISES, INC.

Inventor： STRACK, Kurt, M. ,  STOYER, Charles, H.

IPC: G01V3/00

CPC classification number: G01V3/12 ,  G01V3/083

Abstract: A method for interpreting transient electromagnetic survey data includes measuring transient response of a medium over a plurality of switching events. The measured transient response to a first one of the current switching events is modeled. Transient response to the model for at least one current switching event prior in time to the at least a first current switching event is calculated. The calculated transient response is summed with the first event measured response and the sum is compared to the electromagnetic survey measurements. The model is adjusted and the calculating summed transient responses is repeated until a difference between the summed calculated responses and the survey measurements falls below a selected threshold.

Abstract translation: 用于解释瞬态电磁测量数据的方法包括测量介质对多个开关事件的瞬态响应。 对第一个电流开关事件的测量瞬态响应建模。 计算针对至少一个当前开关事件的至少一个当前开关事件对该模型的瞬态响应。 计算得到的瞬态响应与第一个事件测量响应相加，并将总和与电磁测量测量值进行比较。 调整模型并重复计算求和瞬态响应，直到求和计算响应与调查测量值之间的差值低于选定阈值。

公开(公告)号：WO2010141015A1

公开(公告)日：2010-12-09

申请号：PCT/US2009/046133

申请日：2009-06-03

Applicant: KJT ENTERPRISES, INC. ,  HELWIG, Stefan, L. ,  STRACK, Kurt, M.

Inventor： HELWIG, Stefan, L. ,  STRACK, Kurt, M.

IPC: G01V3/08

CPC classification number: G01V3/08 ,  Y02A90/344

Abstract: A method for processing marine electromagnetic signal measurements includes acquiring magnetotelluric (MT) measurements from below a bottom of a body of water at a plurality of positions along the water bottom at substantially the same times at each position. Controlled source electromagnetic (CSEM) measurements are acquired from below the water bottom at substantially the same positions at substantially the same time at each position. The MT measurements and the CSEM measurements are jointly processed to obtain a model of conductivity distribution in the formations below the water bottom.

Abstract translation: 一种用于处理海洋电磁信号测量的方法包括在每个位置处基本相同的时间沿着水底的多个位置从水体的底部的下方获取大地电磁（MT）测量。 控制源电磁（CSEM）测量是从每个位置基本上相同的时间在基本相同的位置处从水底下方获取的。 MT测量和CSEM测量被联合处理以获得在水底下方的地层中的电导率分布的模型。

公开(公告)号：WO2008066957A2

公开(公告)日：2008-06-05

申请号：PCT/US2007/069843

申请日：2007-05-29

Applicant: KJT ENTERPRISES, INC.

Inventor： STRACK, Kurt, M. ,  ALLEGAR, Norman, C.

IPC: G06F19/00 ,  G06F17/40

CPC classification number: G01V11/007 ,  G01V3/083 ,  G01V2210/6163

Abstract: A method for subsurface Earth surveying includes acquiring seismic data over a selected region of the Earth's subsurface. Seismoelectric data are acquired over a selected region of the Earth's subsurface. Electroseismic data are also acquired over a selected region of the Earth's subsurface. At least one type of electromagnetic survey data is acquired over a selected region of the Earth's subsurface. Survey volumes of the seismic data, the seismoelectric data, the electroseismic data and the electromagnetic data are matched, and a model of the Earth's subsurface is generated that accounts for all of the seismic data, the seismoelectric data, the electroseismic data and the electromagnetic data.

Abstract translation: 地下地球测量的方法包括在地球地下选定区域采集地震数据。 地震数据是在地球地下选定的地区获得的。 地震数据也是在地球地下选定的地区获得的。 至少一种类型的电磁勘测数据是在地球地下选定的地区获得的。 地震数据，地震数据，电震数据和电磁数据的调查量相匹配，产生了地球数据，地震数据，电气地震数据和电磁数据的地球地下模型 。