Method for identifying and comparing stratums by using element comparison relationship
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
An element and stratum technology, applied in earthwork drilling, special data processing applications, measurement, etc., to achieve the effect of guiding trajectory adjustment, improving drilling encounter rate, and improving stratum identification efficiency
Inactive Publication Date: 2020-11-24
CNPC BOHAI DRILLING ENG +1
View PDF6 Cites 3 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0003] The technical problem to be solved by the present invention is to provide a method for stratum identification and comparison using the elemental comparison relationship, use the element stability index to identify and divide strata and oil groups, guide on-site drilling construction, and overcome the problem of element logging technology based on single data. Or the problem of stratum identification and division with multiple data, avoiding multiple solutions in the application of element logging data, improving drilling timeliness, and effectively improving the timeliness and effectiveness of decision-making in the drilling process
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0048] A method for stratum identification and comparison using elemental correlation, including the following specific steps:
[0049] Step 1. Collect the element logging data in the adjacent well GD8, including the relative contents of Ca, Mg, Al, Fe, Si, TI, and Mn elements;
[0050] Through this step, the element logging data of Well GS 8 at 3816-4070m was collected.
[0051] Step 2. Establish the elemental stability index curve of GD8, summarize the morphological characteristics and quantitative characteristics of the elemental stability index according to the model, and form the bottom layer and characteristic summary.
[0052] Through this step, it can be concluded that the element stability index form from the well depth of GD8 well 3816-3890m presents a zigzag rising shape, and the bottom is in the shape of a small knife edge. This well section is determined as S1, and S1 is divided into four sublayers S1- From 1 to S1-4, the curve of S1-1 layer (3816-3830m) presents...
Embodiment 2
[0065] A method for stratum identification and comparison using elemental correlation, comprising the following specific steps:
[0066] Step 1. Collect the elemental logging data of adjacent wells, including the relative contents of Ca, Mg, Al, Fe, Si, TI, and Mn elements;
[0067] Step 2. Establish the element stability index model of adjacent wells, summarize the morphological characteristics and quantitative characteristics of the element stability index according to the model and formation information, and form the bottom layer and characteristic summary.
[0068] Step 3. Obtain the element logging data of the well through the element logging work of drilling QY2H, calculate the element stability index of the drilling well, and summarize the morphological characteristics and quantitative characteristics of the element stability index of the drilling well;
[0069] Step 4.t compares the morphological characteristics and quantitative characteristics of the element stability...
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
Login to view more
Abstract
The invention discloses a method for identifying and comparing stratums by using an element comparison relationship. The method comprises the following steps of collecting element logging data of a well adjacent to a drilled well, and calculating the relative content of each element logging; establishing an element stability index curve of the adjacent well; obtaining element logging data in welldrilling through element logging work in well drilling, calculating an element stability index in well drilling, summarizing and concluding morphological characteristics of the element stability indexin well drilling and summarizing quantitative characteristics; comparing the element stability index morphological characteristics and quantitative characteristics of the drilling well and the adjacent well, and identifying the drilling position of the drilling well; and judging the drilling condition of a target stratum of the drilled well, and forming stratum position description of the drilledstratum. According to the method, data fitting is carried out by using data in an element logging technology to form a method for stratum identification and comparison by using the element comparisonrelationship, and the method is mainly used for on-site exploration and development of oil and gas fields.
Description
technical field [0001] The invention relates to data fitting by using the data in the element logging technology to form a method for stratum identification and comparison using the element contrast relationship, which is mainly used for on-site exploration and development of oil and gas fields, and belongs to the category of oil and gas industry exploration and development logging while drilling Application field of well data processing technology. Background technique [0002] At present, the rapid development of drilling technology has caused a huge impact on the mud logging industry. Accurate lithology identification cannot be carried out based on finely divided powdery cuttings. On-site stratigraphic division work. However, in the application of element logging technology, data analysis only stays at the content changes of a single data or several data to determine the physical and chemical properties of rocks, and it is impossible to accurately divide the stratigraphi...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more