公开(公告)号：US09766359B2

公开(公告)日：2017-09-19

申请号：US14223556

申请日：2014-03-24

Applicant: WESTERNGECO L.L.C.

Inventor： Nicolae Moldoveanu ,  Steven Fealy

IPC: G01V1/38

CPC classification number: G01V1/3808

Abstract: Methods for efficiently acquiring full-azimuth towed streamer survey data are described. The methods use multiple vessels to perform coil shooting.

公开(公告)号：US20150260868A1

公开(公告)日：2015-09-17

申请号：US14714909

申请日：2015-05-18

Applicant: WesternGeco L.L.C.

Inventor： Nicolae Moldoveanu ,  Steven Fealy ,  Kevin J. Deal

IPC: G01V1/38 ,  G01V1/28

CPC classification number: G01V1/3826 ,  G01V1/28 ,  G01V1/3808 ,  G01V1/3817 ,  G01V2210/165 ,  G01V2210/51 ,  G01V2210/56 ,  G01V2210/74

Abstract: Methods and systems for survey designs are disclosed. In one embodiment, a method of towing an array of marine streamers is disclosed, wherein: the array includes a plurality of receivers, the array includes a plurality of steering devices, and the array is towed along a first portion of a coil sail path; steering the array of marine streamers along two or more depths; and steering the array of marine streamers to a slant angle while maintaining the array of marine streamers at their respective two or more depths.

Abstract translation: 披露了调查设计的方法和系统。 在一个实施例中，公开了一种拖曳船用拖缆阵列的方法，其中：所述阵列包括多个接收器，所述阵列包括多个转向装置，并且所述阵列沿着线圈帆道的第一部分被拖曳; 沿两个或更多深度转向海洋拖缆阵列; 并将海洋拖缆阵列转向倾斜角度，同时将海洋拖缆阵列保持在其两个或两个以上的深度。

公开(公告)号：USRE45599E1

公开(公告)日：2015-07-07

申请号：US14047163

申请日：2013-10-07

Applicant: WesternGeco L.L.C.

Inventor： Nicolae Moldoveanu

IPC: G01V1/38

CPC classification number: G01V1/3861 ,  G01V1/38

Abstract: A method and apparatus for acquiring seismic data. In one embodiment, the method includes: moving a first air gun array in the water at a first depth and a second air gun array in the water at a second depth greater than the first depth, in which the total volume of the first air gun array is less than the total volume of the second air gun array, in which the first air gun array is separated from the second air gun array by a distance substantially equal to a shot point interval, firing seismic energy through the first and second air gun arrays through the water into the earth, and recording seismic signals reflected from strata in the earth beneath the water.

Abstract translation: 一种用于采集地震数据的方法和装置。 在一个实施例中，该方法包括：使第一深度处的水中的第一气枪阵列和水中第二深度处的第二气枪阵列移动，第二深度大于第一深度，其中第一气枪的总体积 阵列小于第二气枪阵列的总体积，其中第一气枪阵列与第二气枪阵列分离大约等于射击点间隔的距离，通过第一和第二气枪发射地震能量 通过水排放到地球中，并记录从地下水下反射的地震信号。

公开(公告)号：US08908469B2

公开(公告)日：2014-12-09

申请号：US13943560

申请日：2013-07-16

Applicant: WesternGeco L.L.C.

Inventor： David Ian Hill ,  Nicolae Moldoveanu ,  Steven Fealy

IPC: G01V1/38

CPC classification number: G01V1/3808 ,  G01V2210/165

Abstract: A method for determining a sail plan for a towed-array marine seismic survey includes: dividing a survey area into a regular grid of tiles; and identifying a subset of the tiles as nodes around which continuously curved sail lines are defined. The nodes define regular pattern further including: a first subpattern of nodes; and a second subpattern of nodes offset from the first subpattern. A method for conducting a towed array marine survey includes: traversing a plurality of continuously curved sail lines across a survey area, each sail line being relative to a node; and acquiring seismic data while traversing the continuously curved sail lines. The set of nodes defining a regular pattern further including: a first subpattern of nodes; and a second subpattern of nodes offset from the first subpattern.

Abstract translation: 一种用于确定拖船阵列海洋地震勘测的航行计划的方法包括：将勘测区域划分成规则的格栅; 以及将所述瓦片的子集识别为围绕其定义连续弯曲的帆线的节点。 节点定义规则模式，进一步包括：节点的第一子模式; 以及从第一子模式偏移的节点的第二子模式。 用于进行拖曳排列海洋勘测的方法包括：穿越测量区域遍历多个连续弯曲的帆线，每条帆线相对于节点; 并且在穿过连续弯曲的帆线的同时获取地震数据。 定义规则模式的节点集还包括：节点的第一子模式; 以及从第一子模式偏移的节点的第二子模式。

公开(公告)号：US20140321237A1

公开(公告)日：2014-10-30

申请号：US14311065

申请日：2014-06-20

Applicant: WesternGeco, L.L.C.

Inventor： Nicolae Moldoveanu ,  Alan Strudley

IPC: G01V1/38

CPC classification number: G01V1/3808 ,  G01V1/38 ,  G01V2210/165

Abstract: Methods and systems for efficiently acquiring towed streamer marine seismic data are described. One method and system comprises positioning a plurality of source-only tow vessels and one or more source-streamer tow vessels to acquire a wide- and/or full-azimuth seismic survey without need for the spread to repeat a path once traversed. Another method and system allows surveying a sub-sea geologic feature using a marine seismic spread, the spread smartly negotiating at least one turn during the surveying, and shooting and recording during the turn. This abstract is provided to comply with the rules requiring an abstract, allowing a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

Abstract translation: 描述了有效获取拖缆拖缆海洋地震资料的方法和系统。 一种方法和系统包括定位多个仅来源的拖船和一个或多个源拖缆牵引船，以获取宽和/或全方位地震勘测，而无需扩展一次遍历路径。 另一种方法和系统允许使用海洋地震扩散测量海底地质特征，在测量期间智能地谈判至少一个转弯，以及在转弯期间拍摄和记录。 提供本摘要以符合要求摘要的规则，允许搜索者或其他读者快速确定技术公开内容的主题。 提交它的理解是，它不会用于解释或限制权利要求的范围或含义。