Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Integrated horizontal well geosteering method

A geosteering, horizontal well technology, applied in directional drilling, earthwork drilling, wellbore/well components, etc., can solve the problems of complex underground geological conditions, easy target deviation, single geosteering, etc., and achieve timely correction and evaluation. Synchronize, eliminate inaccuracy, and improve the effect of processing ability

Active Publication Date: 2013-04-17
BC P INC CHINA NAT PETROLEUM CORP +1
View PDF5 Cites 62 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the underground geological conditions are complex, and the target reservoir is relatively thin, which makes it difficult to hit the target and easy to deviate from the target.
However, based on technical limitations and management affiliation, the prior art geosteering represented by the above-mentioned CN102140889A patent document mostly exists in a single form, lacking integrated geosteering, which affects the implementation effect of horizontal well exploration and development

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Integrated horizontal well geosteering method
  • Integrated horizontal well geosteering method
  • Integrated horizontal well geosteering method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0047] As a preferred embodiment of the present invention, comprise the following steps:

[0048] a. Collect 3D seismic data in the service well area, 3D seismic time data in SEGY format, 3D seismic layering data and 3D seismic datum elevation data, perform in-depth conversion and reprocessing on the 3D seismic time data, and finely interpret structures and reservoir fluids Spread, extract attribute feature values, and clarify target features;

[0049]b. Analyze adjacent logging data, finely analyze lithology, oil, gas and water layers, special lithology and sub-layer marks, fine sub-layer comparison, clarify the lateral and vertical distribution characteristics of reservoirs, extract mud logging guidance scale marks, and establish Fine logging standard profile model;

[0050] c. Design the trajectory according to the geological target;

[0051] d. Utilize the underlying ORACLE database of the well site remote information platform to load the 3D seismic data and actual drill...

Embodiment 2

[0061] As the best implementation mode of the present invention, it comprises the following steps:

[0062] a. 3D geological modeling

[0063] Collect 3D seismic SEGY data in the service well area, including time data, depth data, seismic layer data and seismic datum elevation data, etc. Reprocess the seismic data, finely interpret the structure and reservoir fluid distribution, extract attribute characteristic values, and clarify the characteristics of the target body. The results of 3D seismic processing and interpretation are shown in figure 1 .

[0064] Make a fine description of the reservoir, combine geological research and adjacent logging data to establish a fine 3D geological model (sedimentary facies, reservoirs, fluids), optimize the geological target, see the 3D geological modeling process figure 2 .

[0065] b. Logging modeling

[0066] Analyze adjacent logging data, finely analyze lithology, oil, gas and water layers, special lithology and sub-layer signs, ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an integrated horizontal well geosteering method. The integrated horizontal well geosteering method includes the steps of establishing a precise three-dimensional geologic model by geologic data, well logging data, well measuring data and geophysical prospecting data before drilling; designing a three-dimensional track according to a stratigraphic dip and reservoir stratum properties extracted from the three-dimensional model; during drilling, guaranteeing accurate landing and continuously revising the geologic model via tracking while-drilling records and controlling the track; during target drilling, according to combination between while-drilling well recording, while-drilling well measurement combined geological research, seismic interpretation, drilling technology, horizontal well controlling technology, performing while-drilling tracking and explanation evaluation, immediately regulating and forecasting next steps in a horizontal well construction scheme, and realizing field and remote visualized geosteering via an integrated geosteering software system platform.

Description

[0001] technical field [0002] The invention relates to the technical field of drilling exploration and development of oil and natural gas, and more precisely relates to an integrated geosteering method for horizontal wells, which is suitable for drilling horizontal sections of horizontal wells. Background technique [0003] At present, in the field of drilling exploration and development technologies such as oil and natural gas, and in horizontal well operations, logging-while-drilling tools, measurement-while-drilling tools and on-site comprehensive logging tools are used. The measurement-while-drilling tool and the logging-while-drilling tool are located not far from the drill bit, and obtain various data of the formation and wellbore trajectory data while the drilling rig is drilling, including well deviation, azimuth, natural gamma ray, depth and shallow lateral resistance rate etc. The on-site comprehensive mud logging tool obtains drilling time, cuttings, fluorescen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): E21B7/04E21B47/00E21B49/00
Inventor 刘德伦罗于海罗拥军唐家琼罗利
Owner BC P INC CHINA NAT PETROLEUM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com