A horizontal well trajectory correction method and device
A correction method and technology for horizontal wells, applied in the direction of measuring devices, earthwork drilling, wellbore/well components, etc., can solve problems such as inability to correct well trajectory, avoid vertical depth changes, eliminate cumulative errors, and improve correction effects Effect
Active Publication Date: 2019-06-11
PETROCHINA CO LTD
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Problems solved by technology
[0005] The inventor found that there are at least the following problems in the prior art: the existing technology improves the measurement accuracy by improving the performance of the instrument or changing the measurement method, or corrects the entire well section by stretching correction, etc., but the errors continue to accumulate, and the well trajectory cannot be corrected. effective correction
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Embodiment Construction
[0038] Embodiments of the present application provide a horizontal well trajectory correction method and device.
[0039] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0040] figure 1 It is a flow chart of an embodiment of the horizontal well trajectory correction method of the present application. Such as figure 1 As shown, the horizontal well trajectory correction method may include: ...
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The embodiment of the invention discloses a horizontal well trajectory calibration method and device. The method comprises the steps of obtaining well logging data of a guide well and determining a layer top surface location of a first destination layer according to the well logging data of the guide well; obtaining well logging data of a horizontal well and determining the layer top surface location of a second destination layer according to the well logging data of the horizontal well; obtaining seismic data and establishing a three-dimensional structural plane based on the layer top surface location of the first destination layer and the seismic data; adjusting a first parameter of the horizontal well according to the established three-dimensional structural plane, thereby calibrating a horizontal well trajectory, wherein the first parameter comprises a bushing altitude of the horizontal well. According to the horizontal well trajectory calibration method and device provided by the embodiment of the invention, the calibration effect for the well trajectory can be improved.
Description
technical field [0001] The present application relates to the technical field of oilfield exploration and development, in particular to a horizontal well trajectory correction method and device. Background technique [0002] In the field of oil exploitation, generally an oil well is drilled on a stratum with proven oil reserves, and then the extraction equipment is drilled into the stratum from the drilled oil well, and then the oil stored in the stratum is exploited. Oil wells with a depth greater than 6,000 meters are usually called ultra-deep horizontal wells. At present, ultra-deep horizontal well drilling and production technology has been widely used in the oilfields of Hudson, Tahe, Donghetang, Halahatang in Tabei area and Yuanba gas field in Northeast Sichuan area. [0003] When drilling horizontal wells, in order to accurately locate oil and gas layers, obtain underground geological information, and make up for the uncertainty of the above design, pilot holes (vert...
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IPC IPC(8): G06T17/00E21B47/022E21B47/0224G01V1/36
CPCE21B47/022E21B47/0224G01V1/36G01V2210/54G06T17/00
Inventor 宁超众阳建平李勇徐怀民杨浩周爽周起忠孙海航
Owner PETROCHINA CO LTD