在通常的勘探生产过程中，测井与解释工作密不可分。哈里伯顿Landmark推出的DecisionSpace Petrophysics，基于Landmark一体化平台，成为测井解释与地质研究和工程设计的桥梁与沟通平台。
来自 | Halliburton
编译 | 周诗雨
当前的测井分析工作仍像是一个远离大陆的孤岛，离地震解释、地质建模和油藏描述这些“大陆”很远，导致在测井与解释之间经常发生数据延迟、缺失、缺乏连贯性和一致性等。测井部门与解释部门之间缺乏充分的交流沟通。而哈里伯顿Landmark推出的DecisionSpace Petrophysics改变了这一局面。
哈里伯顿的团队经过调研认为，测井解释人员和地质综合研究人员会花费30-40%的时间来搜集到所需要的正确的曲线，而哈里伯顿推出的端到端集成井下数据管理（BHDM）DataManagement（OpenWorks）一体化解决方案，可以大大提高用户的测井解释效率。
技术优势
前所未有的储层评价方式
DecisionSpace Petrophysics充分利用了DecisionSpace勘探开发平台优势。立足于业界领先的信息数据平台和高效的岩石物理分析功能，DecisionSpace Petrophysics可以给用户呈现更便捷、更高效的地层评价体验。
多学科协同
DecisionSpace Petrophysics实现了地球物理、地应力、地质、岩石物理、油藏工程以及采油工程研究人员的协同工作。地下数据的实时共享和数据的动态更新能力让多学科专家团队能够进行高效协作，从而实现更优质的油藏特征研究。在面临复杂作业区块仍能助您加速研究流程、部署安全生产。
有效解决难题
无论作业者需要关注单井还是盆地级勘探开发，DecisionSpacePetrophysics都能帮助其更加深刻地理解储层岩石与流体性质，从而实现决策更快、井位部署更准确，并且提升项目的净现值（NPV）。通过DecisionSpace Petrophysics一体化软件，专家团队可着眼于整个油田生命周期，锁定任一阶段进行产能的优化提升。
技术特点
岩石物理（声波波形）
声波波形处理和诊断工具可以帮助用户实现对声波波形数据的处理，提取纵波、横波、斯通利波、曲面波、四极波（quadrupole wave slownesses）和正交偶极各向异性波。该模块采用了相干处理产生相关图，并以变密度测井图的方式显示，可对其进行交互式拾取，定义变密度的波形组分。
声波时差可用于标准岩石物理参数分析，如孔隙度、多矿物成分计算等。同时在地应力和岩石物理模块中也可以计算弹性岩石物理参数与制作合成地震记录。
地应力（井眼稳定性分析、地层压力预测、出砂预测——砂岩储层岩石破裂）
图像分析模块包含多种成像测井数据的处理工具，具体包括：
1.图像校正：
2.空白充填；
3.加速计；
4.深度匹配；
5.增益；
6.条纹装饰；
7.负极镶边。
地质分层
在3D视窗中，分层面板与井筒呈切割样式，而在图像平铺视窗中则显示为正弦曲线。曲线可以沿地质特征进行追踪。根据识别的地质特征，用户可进行深度、倾角和方位角的计算，并在图中以分层线或蝌蚪形态展示。
1.成图和分层管理：
—定义分层类型；
—定义分层接触关系；
—定义分层为地质特征；
—自动分层拾取、倾角计算、倾角生成和请教拾取。
2.图像分析数据可通过如下选项来成图或展示：
—曲线图；
—蝌蚪与棒形图；
—迷你图；
—倾角极线图；
—玫瑰图：退出图，累计图，井筒剖面，球面投影图，图像直方图，裂缝分析图。
岩石物理模块包括——储量计算，饱和度高度模型，流体单元分析，3D矿物分类，蒙特卡洛分析，曲线预测，非常规地质导向评价，自动组织的2D/3D图。
油藏工程包括—地层测试分析，含水饱和度高度模型，水力流体单元分析。
采油工程——固井质量检测分析。
固井评价模块是井套管工具包的一部分，模块可以分析下套管后的泥浆固井质量，也可以基于导入的泥浆固井曲线数据来提供井间的含水层隔离分析。
数据管理
支持行业所有规范格式的数据加载，可实现数据的质量控制和编辑，让测井分析师和岩石物理学家更高效地获得高质量的测井数据。
1.曲线图、交汇图和直方图展示与统计学数值分析：
—数据列表；
—3D参数视窗；
—井剖面图；
—多井一致性校正；
—蒙太奇视窗。
2.可加载的数据格式：
—ASCII；
—LAS2, LAS3；
—LIS；
—DLIS。
DecisionSpace Petrophysics底层数据基于Landmark数据管理，拥有稳健的信息管理和平台技术，数据管理层次主要有：
1.OpenWorks—管理测井数据存储；
2.Recall—管理井筒数据；
3.InSite—管理实时数据。
DecisionSpacePetrophysics的编辑功能包括：
1.交互式曲线编辑；
2.交互式基线漂移；
3.交互式趋势/方形曲线；
4.交互式深度偏移–可自动深度匹配；
5.交互式曲线拼接；
6.交互式岩性曲线编辑；
7.曲线滤波与平均；
8.曲线比例化；
9.数据空白区曲线充填；
10.地温曲线计算；
11.TVD深度计算器；
DecisionSpacePetrophysics多井一致性特色功能：
1.多井参数分配—“复制粘贴”已知井参数至未知井；
2.多井参数变换—改变个别解释参数，系统可根据新参数重新计算分析；
3.多井批处理—可创建并运行批处理脚本；
4.多井校正视窗；
5.设置多井截止值与多井求和；
6.多井曲线统计分析；
7.管理多井井头信息、井曲线集、井曲线头；
8.管理多井层段/分层；
9.曲线别名。
DecisionSpace Geology模块的改善和提高：
1.测井曲线的成图和打印：
—增强了测井曲线成图与打印的功能；
—新增了单井岩石物理窗口与多值曲线类型；
—可使用多值曲线类型。
2.多值测井曲线可用于：
—NMR分析；
—展示FMI数据；
—扩展HWC方位信息解释。
DecisionSpacePetrophysics的非常规应用
系统配置要求
测井&解释貌合神离？Halliburton带来空前体验！
非常规储层评价
非常规工具是用于快速计算，以及帮助其他非常规资源模块挑选输入数据。DecisionSpacePetrophysics共采用14种密度关系曲线叠加平均用于TOC曲线预测。
岩石力学性质
模块可根据岩石体密度、P波旅行时和S波旅行时来计算动态岩石力学参数和水平/垂直压力比率。
Complete end-to-end integrated Borehole Data Management (BHDM) Project Data Management (OpenWorks) solution bringing efficiencies where organizations spend 30 to 40% of time looking for high value logs.
Borehole and project data integrated solution for well lifecycle management.
BENEFITS
Formation evaluation like never before.
DecisionSpace? Petrophysics harnesses the power of the innovative DecisionSpace Enterprise E&P platform to bring new insights to your assets. From its industry-leading information management platform to its time-saving petrophysical analysis capabilities, everything about DecisionSpace Petrophysics is designed to make formation evaluation simpler and more efcient.
Collaborate across domains.
DecisionSpace Petrophysics closes the gap between geophysics, geomechanics, geology, petrophysics, reservoir engineering and production engineering. Real-time shared subsurface data and dynamic updates enable continuous collaboration across multiple asset teams. The result: better reservoir defnition, accelerated work?ows and safer operations—even in the most complex plays.
Answers, delivered.
Whether you’re looking at a single well or an entire basin, DecisionSpace Petrophysics helps you deeply understand rock and ?uid behavior, so you can make faster decisions and accurate well placement, and how to improve net present value (NPV), Asset teams can now optimize performance throughout every stage in the asset lifecycle.
DecisionSpace Petrophysics integration with DecisionSpace Platform provides seamless access to data and full lifecycle management of borehole information in 3D.
FEATURES
Rock Physics (Acoustic Waveform)
- Acoustic waveform processing and diagnostics window for easy data QC and pre-processing to identify and correct data issues.
- Acoustic waveform processing and diagnostics enables the user to process acoustic waveform data to determine compressional, shear, Stoneley, ?exural, and quadrupole wave slownesses as well as calculate cross-dipole anisotropy. The module uses semblance processing to generate correlograms which can then be displayed as variable-density log (VDL) and interactively picked to identify the various components of the waveform.
- Acoustic travel times then can be used in standard petrophysical analysis, e.g., porosity, multi-mineral solvers, as well as in Geomechanics, and Rock Physics modules to calculate elastic rock properties or synthetic seismograms.
- Geomechanics (Wellbore Stability, Pore Pressure, Sandpit3D – rock failure in sandstone reservoirs)
- Geology – Image Analysis, Rock Typing
3D image log view and interpretation analysis views allows identification and evaluation of geological features required for stratigraphic interpretation.
Image Analysis enables Image Log Data from a variety of tools to be processed within the software. When processing Image log Data using the Image Analysis module, the following tasks can be completed:
- Image Corrections:
—Fill Gaps
—Accelerometer
—Depth Align
—Gain
—Streak
—Negative Tapering
Planes that intersect the borehole appear as sinusoids on the unrolled ?at view. Sine curves can then be traced over Features. From these identified features, the software calculates a depth, angle and azimuth shown as pick/tadpoles in log plots.
- Plot and Manage Picks:
—Define Pick Types
—Define Pick Relationships
—Define Picks as Features
—Automatic Picking
—Auto Dip Calculation
—Auto Dip Generation
—Auto Dip Pick
Image Analysis Data can be plotted and viewed using either of the following options:
- Log Plot
- Tadpole and Stick Plots
- Mini Plots
- Dip Polar Plots
- Rose Plot
- Walkout Plots
- Cumulative Plots
- Wellbore Cross Section
- Stereonet Plots
- Image Histograms
- Fracture Analysis
A 3D image log view and interpretation analysis views allows identification and evaluation of geological features required for stratigraphic interpretation.
Petrophysics – Volumetrics, Saturated Water (Sw) Height Modeling, Flow Units, 3D Mineral Solver, Monte Carlo Analysis, Curve Prediction, Unconventional Evaluation Geosteering. Self-Organizing 2D/3D maps,
Reservoir Engineering – Formation Test Analysis, Sw Height Modeling, Hydraulic Flow Units
Production Engineering – Cement Analysis
The Cement Evaluation Module is part of the Cased Hole tool suite which analyzes the quality of the cement bonding behind casing and its likely ability to provide the required hydraulic isolation of zones within the well based on imported Cement Bond Log data.
Cement evaluation log analysis plot enables assessment of casing integrity and cement bond quality between casing and formation.
Data Management
Comprehensive industry formatted data loading, quality control and editing tools speed up delivering quality logs to log analysts and petrophysicists.
- Data Viewers for log plots, cross plots and histograms with statistical summaries
- Data Listings
- 3D Parameter Viewer
- Well Maps
- Multi-Well Correlations
- Montage Viewers
Data loading capabilities will include all industry formats:
- ASCII
- LAS2, LAS3
- LIS
- DLIS
- DecisionSpace Petrophysics leverages Landmark Data Management repositories, Information Management and Platform technologies.
- OpenWorks – Log Store
- Recall – Borehole data
- InSite – for Real-Time data
DecisionSpace Petrophysics Editing Features include:
- Interactive Curve Edit
- Interactive Baseline Shift
- Interactive Trend/Square Curves
- Interactive Depth Shift with Auto Depth Match option
- Interactive Curve Splice
- Interactive Lithology Curve editor
- Curve Filters and Averages
- Curve Rescale
- Fill Data Gaps
- Temperature Gradient Calculator
- TVD Calculator
DecisionSpace Petrophysics Multi-Well Features include:
- Multi-well Parameter Distribution – copy ‘Parameter Sets’ from one well to other wells in the same project
- Multi-well Change Parameters – change one or more interpretation parameters and re-run the analysis with the new parameter(s)
- Multi-well Batch Operation – create and run scripts, on one or more wells, in a single ‘batch’ procedure
- Multi-well Correlation Viewer
- Multi-well Cuto? and Summation
- Multi-well Curve Statistics
- Manage Multi-well Header Info
- Manage Multi-well Curve Sets
- Manage Multi-well Curve Headers
- Manage Multi-well Zones/Tops
- Curve Aliasing
Enhancements and value add to DecisionSpace Geology:
- Log Plotting and Printing:
- Log Plotting and Printing enhancements
- Develop the Single Well Petrophysical View Multi-Valued Curves
- Enable the use of Multi-valued curves
- Multi-valued Log Curves will support:
- NMR analysis as well as other Multi-valued log curves
- Display of Impetus FMI data
- Expand HWC into azimuthal interpretation
DecisionSpace Petrophysics for Unconventionals
- Unconventional Reservoir Evaluation: The Unconventional option is used for quick computations and to assist selection of input parameters for the other modules in the Unconventional Resources suite.
- TOC (Total Organic Carbon) calculations can be performed from density relationships. Fourteen di?erent density relationships are used to predict TOC and combined through averaging.
TOC analysis plot
- Rock Mechanics: Module computes dynamic rock mechanical properties and horizontal to vertical stress ratio based upon bulk density, sonic p-wave travel time, and sonic s-wave travel time.
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